Yueyang Dalishen Electromagnetic Machinery Co., Ltd. is a leading manufacturer of electromagnetic equipment in Asia-Pacific. They produce 10 series of 200 magnetic separation products. The Double Vertical Ring High Gradient Magnetic Separator DLS is their flagship product. It uses rotating rings with magnetic rods to generate a high gradient magnetic field for separating weakly magnetic minerals. The DLS provides high enrichment ratios, flexibility in particle sizes and pulp densities, and high recovery rates.
Magnetic separation is a process that uses magnets to separate ferromagnetic and paramagnetic materials from other materials. Ferromagnetic materials require relatively weak magnetic fields and are typically separated using permanent magnets, while paramagnetic materials require stronger magnetic fields that can only be produced by electromagnets. Magnetic separation has applications in mineral processing, such as removing tramp iron from ores or separating magnetic minerals from less magnetic ones. There are different types of magnetic separators suited to various materials and particle sizes, including drum separators, cross belt separators, and high-intensity separators used for paramagnetic materials.
This document discusses magnetic separation processes. It begins with an introduction explaining that magnetic separation involves using magnetic forces to extract magnetically susceptible materials from mixtures. It then describes different types of magnetic separators including Edison separators, ball and Norton separators, magnetic drum separators, roller separators, gravity feed separators, and magnetic coolant separators. It explains how each works and their applications in industries like mining, ceramics, chemicals, food, and more. The key advantages of magnetic separation are that it provides an effective means of separating and concentrating magnetic materials from gangue.
Presentation on disc magnetic separator. Which is a type of machinery used in magnetic particle separation. Magnetic ore separator. A type of dry separation technique
This document discusses different types of magnetic separators used to separate minerals based on their magnetic properties. It describes how materials can be classified as diamagnetic or paramagnetic and provides examples of paramagnetic minerals. Several important types of magnetic separators are then outlined, including magnetic drum separators, Ball Norton separators, roller type separators, gravity feed magnets, and wet drum separators. Their basic workings and industrial applications are summarized for each type.
The document summarizes the key steps in the ore dressing (mineral processing) process. It describes four main steps: 1) Comminution which involves crushing and grinding ore to reduce particle size. 2) Sizing by screening to separate particles by size. 3) Concentration using methods like hydraulic washing, magnetic separation, froth flotation, and leaching to separate minerals from waste rock. 4) Dewatering to remove water from concentrated mineral particles.
This document discusses various types of metamorphic reactions including solid-solid net transfer reactions, dehydration reactions, and decarbonation reactions. It also covers topics like the Clausius-Clapeyron equation, the effect of fluid pressure on reaction equilibria, and energy-temperature diagrams. The last few sections explain the rules of Schreinemakers for constructing stability diagrams and provide examples of applying these rules to 2-component mineral systems.
This document provides an overview of mining and mineral processing basics. It discusses different types of mining including surface mining techniques like open pit and strip mining, as well as subsurface mining techniques like room and pillar and longwall mining. It also covers drilling methods, blasting methods, fragmentation, sizing, dewatering, industrial screens, coal washing processes and equipment, iron ore processing, beneficiation, and pelletization. Additionally, it lists major mineral deposits found in India and the states they are located in.
Magnetic separation is a process that uses magnets to separate materials based on their magnetic properties. Ferromagnetic materials like iron are attracted to magnets and can be separated from other non-magnetic materials in the mixture using this technique. It is used in mining iron ores and for removing contamination in industrial processes. The technique involves using magnetic forces to separate magnetic and non-magnetic particles in both wet and dry environments.
Magnetic separation is a process that uses magnets to separate ferromagnetic and paramagnetic materials from other materials. Ferromagnetic materials require relatively weak magnetic fields and are typically separated using permanent magnets, while paramagnetic materials require stronger magnetic fields that can only be produced by electromagnets. Magnetic separation has applications in mineral processing, such as removing tramp iron from ores or separating magnetic minerals from less magnetic ones. There are different types of magnetic separators suited to various materials and particle sizes, including drum separators, cross belt separators, and high-intensity separators used for paramagnetic materials.
This document discusses magnetic separation processes. It begins with an introduction explaining that magnetic separation involves using magnetic forces to extract magnetically susceptible materials from mixtures. It then describes different types of magnetic separators including Edison separators, ball and Norton separators, magnetic drum separators, roller separators, gravity feed separators, and magnetic coolant separators. It explains how each works and their applications in industries like mining, ceramics, chemicals, food, and more. The key advantages of magnetic separation are that it provides an effective means of separating and concentrating magnetic materials from gangue.
Presentation on disc magnetic separator. Which is a type of machinery used in magnetic particle separation. Magnetic ore separator. A type of dry separation technique
This document discusses different types of magnetic separators used to separate minerals based on their magnetic properties. It describes how materials can be classified as diamagnetic or paramagnetic and provides examples of paramagnetic minerals. Several important types of magnetic separators are then outlined, including magnetic drum separators, Ball Norton separators, roller type separators, gravity feed magnets, and wet drum separators. Their basic workings and industrial applications are summarized for each type.
The document summarizes the key steps in the ore dressing (mineral processing) process. It describes four main steps: 1) Comminution which involves crushing and grinding ore to reduce particle size. 2) Sizing by screening to separate particles by size. 3) Concentration using methods like hydraulic washing, magnetic separation, froth flotation, and leaching to separate minerals from waste rock. 4) Dewatering to remove water from concentrated mineral particles.
This document discusses various types of metamorphic reactions including solid-solid net transfer reactions, dehydration reactions, and decarbonation reactions. It also covers topics like the Clausius-Clapeyron equation, the effect of fluid pressure on reaction equilibria, and energy-temperature diagrams. The last few sections explain the rules of Schreinemakers for constructing stability diagrams and provide examples of applying these rules to 2-component mineral systems.
This document provides an overview of mining and mineral processing basics. It discusses different types of mining including surface mining techniques like open pit and strip mining, as well as subsurface mining techniques like room and pillar and longwall mining. It also covers drilling methods, blasting methods, fragmentation, sizing, dewatering, industrial screens, coal washing processes and equipment, iron ore processing, beneficiation, and pelletization. Additionally, it lists major mineral deposits found in India and the states they are located in.
Magnetic separation is a process that uses magnets to separate materials based on their magnetic properties. Ferromagnetic materials like iron are attracted to magnets and can be separated from other non-magnetic materials in the mixture using this technique. It is used in mining iron ores and for removing contamination in industrial processes. The technique involves using magnetic forces to separate magnetic and non-magnetic particles in both wet and dry environments.
Volatile Transport - Magmatic Differentiationzaman .
The document discusses volatile transport and magmatic differentiation. It begins by explaining that volatiles in magma are a major source of gases. It then explores the volatile budget in the upper mantle and crust, noting their roles as volatile sources. The document also examines the effects of vapor phase transport, how volatiles are transported and influence differentiation. It concludes by listing references for further information.
Gold mining involves processes to extract gold from the ground. There are several methods used including placer mining, open-pit mining, hard rock mining, and byproduct mining. Placer mining recovers gold from alluvial deposits using techniques like panning, sluicing, dredging, and cradling. Hard rock mining is used when gold is encased in rock rather than loose sediment. Modern techniques include cyanidation, which uses cyanide to bond to gold, and metal detection.
The document discusses key aspects of gating system design including pouring time, choke area, sprue design, pouring basin, sprue base well, gating ratios, ingate design, and slag trap systems. It provides equations and guidelines for calculating pouring time, choke area, sprue taper, and gating ratios. It also describes non-pressurized and pressurized gating systems and discusses Bernoulli's theorem and the law of mass continuity as they relate to fluid flow in gating design.
MAGNETIC TYPES. ELECTROSTATIC SEPARATION, Electrostatic separation advantages over any other processes ,types of equipment ,Application Electrostatic separation.
Evaporation, PROCESS, Environments, minerals, FORMATION, types, marine, lakes, inland, Dead Sea, Salt,lakes, alkali lakes, potash lakes, Evaporite Deposits, resources and reservesPROCESS OF MINERAL FORMATION BY EVAPORATION, ENVIRONMENTS FOR EVAPORITE PRECIPITATION, Marine Evaporites, Barred Basins, Non-marine, Continental, Inland lakes, Evaporites, CHEMISTRY OF EVAPORITES, Evaporation Sequence of Seawater, Evaporation of Seawater , Rates of Evaporite Deposition, EVAPORATE MINERALS, DIAGENESIS OF EVAPORITES, DEPOSITION FROM OCEANIC WATERS, Calcium Sulfate Deposition, Salt (Halite) Deposition, Salt Domes, Potash Deposition, World Potash Mine Production, Potash Deposits in Dead Sea, Borate and Bromine Deposition, DEPOSITION FROM CONTINENTAL WATERS AND INLAND LAKES, MAJOR IONS OF INLAND WATERS, EVAPORATION SEQUENCE OF INLAND LAKES, DEPOSITION FROM INLAND LAKES, Deposition from Salt Lakes, Salton Sea California, Deposition from Alkali (or Soda) Lakes, Deposition from Bitter Lakes, Sulfate lakes, Deposition from Potash Lakes, Deposition from Borate Lakes, MODELS FOR EVAPORITE SEDIMENTATION, EVAPORITE FORMATION
This document discusses different types of abrasives, both natural and manufactured. It begins by defining abrasives as substances that are used to grind, polish, or remove material through rubbing or impact. It then describes important properties for abrasives such as hardness, toughness, grain shape and size. The document categorizes abrasives into loose grains, bonded abrasives, coated abrasives, and grains for soaps. It provides examples for each category and describes their typical uses. The document also distinguishes between natural abrasives like corundum, emery and diamonds, and manufactured abrasives like aluminum oxide and silicon carbide.
Resource/reserve estimation depends first and foremost on a geological model that provides a sound, confident expectation that a well defined volume (deposit/domain) is mineralized throughout. Without this explicit decision regarding geological continuity of a delimited mineralized zone, neither estimates nor classification of mineral inventory is possible.
CONTINUITY; Geological Continuity; Value (Grade) Continuity; Primary factors that affect the estimation of value continuity; Continuity Domains; Reserves and Resources
Gold is a transitional metal. In its purest form have reddish yellow color, soft, malleable, and ductile metal.
Atomic number : 79
Atomic mass : 196.9 u
Density : 19.32 g/cm3
Melting point : 1,064 °C
Boiling point : 2,700 °C
Founded in different form associated with different rock type in different tectonic setting.
Discovered from earlier time and used for multi purposes.
Formation of gold
The saying among prospectors that "gold is where you find it" suggests its occurrence is unpredictable, but there is some certain geological environments for the formation.
Because gold is very stable over a range of conditions, it is very widespread in the earth’s crust.
Gold dissolved in warm to hot salty water, the fluids are generated in huge volumes deep in the Earth’s crust as water-bearing minerals dehydrate during metamorphism.
Any gold present in the rocks being heated and squeezed is sweated out and goes into solution as complex ions.
In this form, dissolved gold, along with other elements such as silicon, iron and sulphur, migrates wherever fractures in the rocks allow the fluids to pass.
The direction is generally upwards, to cooler regions at lower pressures nearer the Earth’s surface.
Gold eventually becomes insoluble and begins to crystallize, most often enveloped by quartz.
The association of gold and quartz vein forms one of the most common types of "primary gold deposits".
India
In India, gold mineralization of economic importance is mainly restricted to Archean greenstone terranes of the Dharwar Craton (DC).
The eastern block of the DC has a high favorability for hosting major gold deposits such as Kolar, Hutti, and Ramagiri, whereas the western block hosts only a few smaller deposits such as Gadag, Ajjahanahalli, and Kempinkote.
Gold also discoverrd by GSI in the Singbhum Craton, Aravalli Craton, Bastar Craton and Southern Granulite Terrain (SGT).
India is the second-largest consumer of gold after China.
India currently holds about 558 tones of gold, representing 6.6% of its reserves, (World Gold Council, October 2016).
Kolar Gold Field, Hutti Gold Field and Ramgiri Gold Field are the most important gold fields.
Gold Demand and Use
The largest source of demand is the jewelry industry Gold’s workability, unique beauty, and universal appeal make this rare precious metal the favorite of jewelers all over the world.
Besides jewelry, gold has many applications in a variety of industries including aerospace, medicine, dentistry, and electronics for the manufacture of computers, telephones, televisions...
The third source of gold demand is governments and central banks that buy gold to increase their official reserves.
Private investors there are private investors. Depending upon market circumstances, the investment component of demand can vary substantially from year to year.
Komattite
Named after the Komati River in South Africa.
first described by Morris and Richard (twins) for ultramafic units in the Barberton Greenstone belt of South Africa.
Mostly of komatiite are Archean age
distributed in the Archaean shield areas.
Also a few are Proterozoic and Phanerozoic.
In all ages komatiites are highly magnesium.
Mostly a volcanic rock; occasionally intrusive.
Mafic rocks were identified as extrusive because of their volcanic textures and structures, and they seem to have been accepted as a normal component of Archean volcanic successions, Abitibi in Canada.
The ultramafic rocks were interpreted as intrusive which are founded as sills and dykes, Barberton in South Africa.
Spinifex texture-typical of Komatiites:
The name Spinifex refer to a spiky grass in Australian.
Prospección y exploración de yacimientos de diamanteAngela Escalante
La prospección de diamantes incluye métodos para yacimientos primarios como intrusiones kimberlíticas y depósitos secundarios de aluvión. Para yacimientos primarios se utiliza prospección geofísica como magnetometría de campo total desde avión y resistividad, así como perforaciones y análisis de muestras. Para depósitos de aluvión se usa fotogeología para mapear terrazas, muestreo de minerales pesados, y análisis de muestras volumétricas.
Ore processing and metal recovery involves several key steps:
1. Crushing and grinding the ore to prepare it for separation.
2. Separating the valuable minerals from waste rock via techniques like flotation or magnetic separation. This produces a concentrate.
3. Further processing the concentrate using methods like leaching to extract the desired metal. Heap leaching uses cyanide solutions to extract gold from crushed ore piled on impermeable liners. This poses risks of cyanide contamination if not properly managed.
Injection metallurgy and ladle furnaces are used to refine molten steel. In injection metallurgy, desulfurizing reagents are injected into the ladle through a lance using argon gas as a carrier, which helps remove sulfur. Ladle furnaces are used to reheat, stir, and refine steel in a ladle. They allow for desulfurization, alloy additions, and inclusion removal. Both processes make use of slag and can reduce sulfur levels to 0.0002%, improving steel properties.
The document discusses lean iron ore beneficiation in India. It notes that India has over 25 billion tonnes of iron ore resources but reserves are depleting rapidly due to increased demand. Lean iron ore beneficiation techniques are needed to upgrade low-grade ores and maximize resource recovery in an environmentally sustainable way. This includes exploring deeper reserves, jigging, washing, classification, grinding, gravity separation, and magnetic separation to produce saleable iron ore concentrates and minimize waste disposal.
Minerals are formed by changes in chemical energy in systems which contain one fluid or vapor phase. In nature, minerals are formed by crystallisation or precipitation from concentrated solutions. These solutions are called as ore-bearing fluids. Ore-bearing fluids are characterised by high concentration of certain metallic or other elements.
Fluids are the most effective agents for the transport of material in the mantle and the Earth's crust.
Biogeochemical anomalies occur where vegetation contains abnormally high concentrations of metals. Different plant species take up different amounts of inorganic materials from the soil based on factors like their root depth and water source. Plants with deep roots directly over an ore deposit can show biogeochemical anomalies from taking up mobile elements in soil solutions. Biogeochemical surveys first determine the optimal plant species, plant part, and elements to sample through an orientation survey. They then involve systematically collecting and analyzing plant samples according to a grid or vegetation distribution to identify anomalies.
The investment casting process begins by creating wax or plastic patterns of the desired casting shape. These patterns are assembled and surrounded by a refractory slurry mold. The mold is then heated, melting out the pattern and leaving a clean cavity. Molten metal is then poured into the mold to create the casting, which is then separated from the mold. This lost wax process allows for intricate details and smooth surfaces in castings of alloys that are difficult to machine.
The document discusses different geophysical methods used for subsurface exploration, including gravity, magnetic, electrical resistivity, and seismic methods. It focuses on explaining the gravity and magnetic methods. Gravity surveys measure differences in the gravitational field to detect variations in subsurface density distributions. Magnetic surveys map variations in the magnetic field caused by changes in magnetic susceptibility or structure of near-surface rocks. Both methods are used to locate features like hydrocarbon deposits, ore bodies, cavities, and buried structures or utilities.
Ceramic materials and their processing Rizwan Khan
This document discusses different types of ceramic materials and their processing methods. It describes traditional ceramics as those composed of clay minerals and advance ceramics as those made from synthetically produced raw materials. The key steps in processing traditional ceramics are preparing raw materials, shaping, drying, and firing. Shaping methods include slip casting, plastic forming like hand modeling and jiggering, and pressing techniques like semi-dry and dry pressing. Drying removes water from the shaped pieces before firing sinters and densifies the ceramic.
This document discusses magnetic separators, including their working principles, construction, types, and industrial applications. Magnetic separators use magnetic fields to remove magnetic materials from a feed or concentrate ore by exploiting differences in magnetic properties. Common types include drum magnets, which are used in industries like sugar, cement, and chemicals to remove fine iron; plate magnets, which remove tramp iron from glass, food, and textile industries; and pipeline magnets, which purify liquid lines. Magnetic separators have a variety of industrial uses including product purification and protecting downstream equipment from magnetic contamination.
Volatile Transport - Magmatic Differentiationzaman .
The document discusses volatile transport and magmatic differentiation. It begins by explaining that volatiles in magma are a major source of gases. It then explores the volatile budget in the upper mantle and crust, noting their roles as volatile sources. The document also examines the effects of vapor phase transport, how volatiles are transported and influence differentiation. It concludes by listing references for further information.
Gold mining involves processes to extract gold from the ground. There are several methods used including placer mining, open-pit mining, hard rock mining, and byproduct mining. Placer mining recovers gold from alluvial deposits using techniques like panning, sluicing, dredging, and cradling. Hard rock mining is used when gold is encased in rock rather than loose sediment. Modern techniques include cyanidation, which uses cyanide to bond to gold, and metal detection.
The document discusses key aspects of gating system design including pouring time, choke area, sprue design, pouring basin, sprue base well, gating ratios, ingate design, and slag trap systems. It provides equations and guidelines for calculating pouring time, choke area, sprue taper, and gating ratios. It also describes non-pressurized and pressurized gating systems and discusses Bernoulli's theorem and the law of mass continuity as they relate to fluid flow in gating design.
MAGNETIC TYPES. ELECTROSTATIC SEPARATION, Electrostatic separation advantages over any other processes ,types of equipment ,Application Electrostatic separation.
Evaporation, PROCESS, Environments, minerals, FORMATION, types, marine, lakes, inland, Dead Sea, Salt,lakes, alkali lakes, potash lakes, Evaporite Deposits, resources and reservesPROCESS OF MINERAL FORMATION BY EVAPORATION, ENVIRONMENTS FOR EVAPORITE PRECIPITATION, Marine Evaporites, Barred Basins, Non-marine, Continental, Inland lakes, Evaporites, CHEMISTRY OF EVAPORITES, Evaporation Sequence of Seawater, Evaporation of Seawater , Rates of Evaporite Deposition, EVAPORATE MINERALS, DIAGENESIS OF EVAPORITES, DEPOSITION FROM OCEANIC WATERS, Calcium Sulfate Deposition, Salt (Halite) Deposition, Salt Domes, Potash Deposition, World Potash Mine Production, Potash Deposits in Dead Sea, Borate and Bromine Deposition, DEPOSITION FROM CONTINENTAL WATERS AND INLAND LAKES, MAJOR IONS OF INLAND WATERS, EVAPORATION SEQUENCE OF INLAND LAKES, DEPOSITION FROM INLAND LAKES, Deposition from Salt Lakes, Salton Sea California, Deposition from Alkali (or Soda) Lakes, Deposition from Bitter Lakes, Sulfate lakes, Deposition from Potash Lakes, Deposition from Borate Lakes, MODELS FOR EVAPORITE SEDIMENTATION, EVAPORITE FORMATION
This document discusses different types of abrasives, both natural and manufactured. It begins by defining abrasives as substances that are used to grind, polish, or remove material through rubbing or impact. It then describes important properties for abrasives such as hardness, toughness, grain shape and size. The document categorizes abrasives into loose grains, bonded abrasives, coated abrasives, and grains for soaps. It provides examples for each category and describes their typical uses. The document also distinguishes between natural abrasives like corundum, emery and diamonds, and manufactured abrasives like aluminum oxide and silicon carbide.
Resource/reserve estimation depends first and foremost on a geological model that provides a sound, confident expectation that a well defined volume (deposit/domain) is mineralized throughout. Without this explicit decision regarding geological continuity of a delimited mineralized zone, neither estimates nor classification of mineral inventory is possible.
CONTINUITY; Geological Continuity; Value (Grade) Continuity; Primary factors that affect the estimation of value continuity; Continuity Domains; Reserves and Resources
Gold is a transitional metal. In its purest form have reddish yellow color, soft, malleable, and ductile metal.
Atomic number : 79
Atomic mass : 196.9 u
Density : 19.32 g/cm3
Melting point : 1,064 °C
Boiling point : 2,700 °C
Founded in different form associated with different rock type in different tectonic setting.
Discovered from earlier time and used for multi purposes.
Formation of gold
The saying among prospectors that "gold is where you find it" suggests its occurrence is unpredictable, but there is some certain geological environments for the formation.
Because gold is very stable over a range of conditions, it is very widespread in the earth’s crust.
Gold dissolved in warm to hot salty water, the fluids are generated in huge volumes deep in the Earth’s crust as water-bearing minerals dehydrate during metamorphism.
Any gold present in the rocks being heated and squeezed is sweated out and goes into solution as complex ions.
In this form, dissolved gold, along with other elements such as silicon, iron and sulphur, migrates wherever fractures in the rocks allow the fluids to pass.
The direction is generally upwards, to cooler regions at lower pressures nearer the Earth’s surface.
Gold eventually becomes insoluble and begins to crystallize, most often enveloped by quartz.
The association of gold and quartz vein forms one of the most common types of "primary gold deposits".
India
In India, gold mineralization of economic importance is mainly restricted to Archean greenstone terranes of the Dharwar Craton (DC).
The eastern block of the DC has a high favorability for hosting major gold deposits such as Kolar, Hutti, and Ramagiri, whereas the western block hosts only a few smaller deposits such as Gadag, Ajjahanahalli, and Kempinkote.
Gold also discoverrd by GSI in the Singbhum Craton, Aravalli Craton, Bastar Craton and Southern Granulite Terrain (SGT).
India is the second-largest consumer of gold after China.
India currently holds about 558 tones of gold, representing 6.6% of its reserves, (World Gold Council, October 2016).
Kolar Gold Field, Hutti Gold Field and Ramgiri Gold Field are the most important gold fields.
Gold Demand and Use
The largest source of demand is the jewelry industry Gold’s workability, unique beauty, and universal appeal make this rare precious metal the favorite of jewelers all over the world.
Besides jewelry, gold has many applications in a variety of industries including aerospace, medicine, dentistry, and electronics for the manufacture of computers, telephones, televisions...
The third source of gold demand is governments and central banks that buy gold to increase their official reserves.
Private investors there are private investors. Depending upon market circumstances, the investment component of demand can vary substantially from year to year.
Komattite
Named after the Komati River in South Africa.
first described by Morris and Richard (twins) for ultramafic units in the Barberton Greenstone belt of South Africa.
Mostly of komatiite are Archean age
distributed in the Archaean shield areas.
Also a few are Proterozoic and Phanerozoic.
In all ages komatiites are highly magnesium.
Mostly a volcanic rock; occasionally intrusive.
Mafic rocks were identified as extrusive because of their volcanic textures and structures, and they seem to have been accepted as a normal component of Archean volcanic successions, Abitibi in Canada.
The ultramafic rocks were interpreted as intrusive which are founded as sills and dykes, Barberton in South Africa.
Spinifex texture-typical of Komatiites:
The name Spinifex refer to a spiky grass in Australian.
Prospección y exploración de yacimientos de diamanteAngela Escalante
La prospección de diamantes incluye métodos para yacimientos primarios como intrusiones kimberlíticas y depósitos secundarios de aluvión. Para yacimientos primarios se utiliza prospección geofísica como magnetometría de campo total desde avión y resistividad, así como perforaciones y análisis de muestras. Para depósitos de aluvión se usa fotogeología para mapear terrazas, muestreo de minerales pesados, y análisis de muestras volumétricas.
Ore processing and metal recovery involves several key steps:
1. Crushing and grinding the ore to prepare it for separation.
2. Separating the valuable minerals from waste rock via techniques like flotation or magnetic separation. This produces a concentrate.
3. Further processing the concentrate using methods like leaching to extract the desired metal. Heap leaching uses cyanide solutions to extract gold from crushed ore piled on impermeable liners. This poses risks of cyanide contamination if not properly managed.
Injection metallurgy and ladle furnaces are used to refine molten steel. In injection metallurgy, desulfurizing reagents are injected into the ladle through a lance using argon gas as a carrier, which helps remove sulfur. Ladle furnaces are used to reheat, stir, and refine steel in a ladle. They allow for desulfurization, alloy additions, and inclusion removal. Both processes make use of slag and can reduce sulfur levels to 0.0002%, improving steel properties.
The document discusses lean iron ore beneficiation in India. It notes that India has over 25 billion tonnes of iron ore resources but reserves are depleting rapidly due to increased demand. Lean iron ore beneficiation techniques are needed to upgrade low-grade ores and maximize resource recovery in an environmentally sustainable way. This includes exploring deeper reserves, jigging, washing, classification, grinding, gravity separation, and magnetic separation to produce saleable iron ore concentrates and minimize waste disposal.
Minerals are formed by changes in chemical energy in systems which contain one fluid or vapor phase. In nature, minerals are formed by crystallisation or precipitation from concentrated solutions. These solutions are called as ore-bearing fluids. Ore-bearing fluids are characterised by high concentration of certain metallic or other elements.
Fluids are the most effective agents for the transport of material in the mantle and the Earth's crust.
Biogeochemical anomalies occur where vegetation contains abnormally high concentrations of metals. Different plant species take up different amounts of inorganic materials from the soil based on factors like their root depth and water source. Plants with deep roots directly over an ore deposit can show biogeochemical anomalies from taking up mobile elements in soil solutions. Biogeochemical surveys first determine the optimal plant species, plant part, and elements to sample through an orientation survey. They then involve systematically collecting and analyzing plant samples according to a grid or vegetation distribution to identify anomalies.
The investment casting process begins by creating wax or plastic patterns of the desired casting shape. These patterns are assembled and surrounded by a refractory slurry mold. The mold is then heated, melting out the pattern and leaving a clean cavity. Molten metal is then poured into the mold to create the casting, which is then separated from the mold. This lost wax process allows for intricate details and smooth surfaces in castings of alloys that are difficult to machine.
The document discusses different geophysical methods used for subsurface exploration, including gravity, magnetic, electrical resistivity, and seismic methods. It focuses on explaining the gravity and magnetic methods. Gravity surveys measure differences in the gravitational field to detect variations in subsurface density distributions. Magnetic surveys map variations in the magnetic field caused by changes in magnetic susceptibility or structure of near-surface rocks. Both methods are used to locate features like hydrocarbon deposits, ore bodies, cavities, and buried structures or utilities.
Ceramic materials and their processing Rizwan Khan
This document discusses different types of ceramic materials and their processing methods. It describes traditional ceramics as those composed of clay minerals and advance ceramics as those made from synthetically produced raw materials. The key steps in processing traditional ceramics are preparing raw materials, shaping, drying, and firing. Shaping methods include slip casting, plastic forming like hand modeling and jiggering, and pressing techniques like semi-dry and dry pressing. Drying removes water from the shaped pieces before firing sinters and densifies the ceramic.
This document discusses magnetic separators, including their working principles, construction, types, and industrial applications. Magnetic separators use magnetic fields to remove magnetic materials from a feed or concentrate ore by exploiting differences in magnetic properties. Common types include drum magnets, which are used in industries like sugar, cement, and chemicals to remove fine iron; plate magnets, which remove tramp iron from glass, food, and textile industries; and pipeline magnets, which purify liquid lines. Magnetic separators have a variety of industrial uses including product purification and protecting downstream equipment from magnetic contamination.
This document provides information about mining machinery from China Mining Project. It describes magnetic separator machines and Raymond mill machines that are high-quality, cutting-edge solutions for mineral processing. The company has decades of experience and partnerships with top mineral processing companies. Technical specifications are provided for wet magnetic separators and dry magnetic separators, along with descriptions of their applications, advantages, and working principles. Contact information is given at the end.
Pemisahan magnetik digunakan untuk memisahkan mineral berdasarkan sifat magnetiknya. Mineral dapat tertarik, menjauhi, atau tidak bereaksi terhadap medan magnet. Pemisahan bergantung pada rasio gaya magnetik terhadap gaya sentrifugal dan gravitasi. Pemisahan magnetik umumnya murah kecuali diperlukan pemisah intensitas tinggi.
This document discusses different types of magnetic separators used in mineral processing. It describes four main types: magnetic drum separators, ball Norton separators, roller type magnetic separators, and gravity feed magnetic separators. Magnetic drum separators use rotating drums with magnets to separate ferrous materials. Ball Norton separators handle large amounts of ferrous material. Roller type separators use magnetic rolls and conveyors to separate materials. Gravity feed separators use gravity and magnets in a vertical flow system to separate ferrous tramp metals. The document provides details on how each type of separator works and common applications in industries like mining, food processing, chemicals and more.
The document describes the ZYC High-Efficiency Cone Crusher manufactured by Shanghai Joyal Mining Machinery Co., Ltd. ZYC cone crushers can be used to crush materials like iron ore, limestone, and granite. The crushers feature improvements like a more convenient adjusting device and optimized cavity design. They have a simple design and various safety features. The document provides specifications, gradation curves, and a structure drawing for the ZYC cone crushers.
Magnetic particle inspection detects defects in ferromagnetic materials by magnetizing the material and applying iron-based particles or wet fluorescent dye. Defects are revealed under ultraviolet light as the particles cluster at discontinuities in the magnetic field caused by the defect. Image processing techniques can further analyze inspection images to enhance defect detection. While providing accurate detection of surface and near-surface flaws, magnetic particle inspection is time-consuming and subjective, but digital image analysis automates some inspection tasks.
This document provides an overview of magnetic particle inspection (MPI), a nondestructive testing method used to detect surface and near-surface defects in ferromagnetic materials. It describes the basic principles of how MPI works by magnetizing a material and using magnetic particles to reveal defects that cause magnetic flux leakage. The document outlines the properties of materials in magnetic fields, the MPI process, standards, advantages, limitations, and examples of MPI indications.
The document describes different types of centrifuges based on their design features and intended applications. Centrifuges vary in maximum speed, capacity, temperature control, and sample volume capabilities. Small benchtop centrifuges are used in clinical labs for blood separation and can hold around 100 tubes. Microcentrifuges are very common in biology labs, can hold small tube volumes, and generate forces up to 15,000g. High speed centrifuges spin at 15,000-20,000 RPM and are used for research applications requiring separation of cellular components. Ultracentrifuges provide the highest speeds and forces but are expensive and require special rotors and cooling due to heat generation.
Centrifugation principle and types by Dr. Anurag YadavDr Anurag Yadav
concept of cnetrifugation,
basic Principle
centrifugal force
types of centrifugation based on use and rotor type
application of the each type of centrifuge
Ultracentrifuge in detail
application in general
Centrifugation is a procedure that uses centrifugal force to separate mixtures. Denser components move away from the axis of rotation while less dense components move towards the axis. The document discusses the principles, types (low speed, high speed, ultracentrifuges), applications, and techniques (preparative, differential, density gradient) of centrifugation. It provides details on rotor types, speeds, uses for separating organelles, macromolecules, and more. Diagrams illustrate basic centrifuge components and a table compares characteristics of different centrifuge types.
Superconducting magnets on Material ScienceSneheshDutta
Superconducting Magnets application and properties. ppt on Superconducting Magnets. I’ve done a bit of research recently into superconducting magnets and this time the research was jointly funded by the NASA Human Exploration Research Applications Project (HERP) and NASA’s Office of Space Science. This research was initiated at MIT’s Laboratory for Materials and Energy Sciences and involved the use of NASA’s Centaur upper stage for sounding rockets.
The document discusses recent advances in magnetic separator designs and applications. It begins with an overview of existing magnetic separation technology, including low, medium, and high intensity separators. It then outlines some areas for improvement, such as processing finer particles, high temperature limitations, and suboptimal separator designs. The document goes on to describe recent technology advances that address these limitations, including a high efficiency rare-earth roll separator with an adjustable feed system, a FluxForceTM hybrid rare-earth magnetic separator that combines features of drum and roll separators, and a SLon® WHIMS with a vertical carousel and rod matrix design. Testing showed these new designs improved yields, recoveries and product quality over traditional separators.
this presentation tells about superconductivity and its application as superconducting magnetic separation. its also tell about traditional and modern methods of magnetic separation.
Eddy current brakes use magnetic fields to induce currents in conductors that generate their own magnetic field opposing the original field, slowing rotation or movement. They have electromagnets that create magnetic fields to induce currents in discs or rails, generating braking force without contact. Eddy current brakes are quiet, frictionless, and low maintenance, making them useful for trains and other vehicles.
The document summarizes the Searl Effect Generator (SEG), a device invented by John Searl in 1946 that aims to provide unlimited clean energy. The SEG consists of concentric rings and magnetic rollers that spin perpetually due to interactions between the materials, including magnets, neodymium, and copper. When constructed correctly, these materials create a cycle of electron movement that produces more power than the device uses. The SEG works by using ambient temperature changes to power the rotation of magnetic rollers around concentric rings, inducing electric currents that can power external loads. The document describes the experimental setup of a one-ring SEG device constructed and tested based on Searl's theories.
Searl-Effect Generator Design and Manufacturing Procedure
In this article, the design and manufacturing procedure for a Searl-Effect Generator (SEG) will be described. The SEG is a device that generates electricity using principles of magnetism and rotation. The generator consists of three main parts: the rotor, the stator, and the housing. The rotor is a metal disc that rotates around a stationary stator. The stator is made up of two electromagnets that create a rotating magnetic field. The housing holds everything together and provides a place for the wiring to connect to the generator.
The first step in building the SEG is to create the rotor. The rotor is made from a metal disc that is about 12 inches in diameter. A hole must be drilled in the center of the disc so that it can fit over the axle of the motor.
Application of eddy current in industry and domestic purposes.pptxsukantatechedu
This document discusses eddy currents and their applications. It begins with definitions of eddy currents and explanations of how they are generated according to Faraday's and Lenz's laws. It then discusses several applications of eddy currents including non-destructive testing, braking, separation, heating, levitation, and sensing. For each application, it provides details on the operating principles, typical setup configurations, advantages, and limitations. The document also discusses eddy current testing and its use in various industries. It concludes with additional minor applications of eddy currents beyond those covered in the earlier sections.
Super conductors and magnetic levitation pptSamathaImmadi
Super conductors have negligible resistance below a critical temperature. They are used in magnetic levitation trains where the repulsion between a superconductor and magnet causes levitation. Super conductors have applications in particle accelerators, medical imaging, power grids, and proposed uses in high speed trains and launching space vehicles. Magnetic levitation provides advantages over normal applications like reduced energy usage and lower operating costs for trains.
This document summarizes an seminar presentation on ultrasonic motors. It discusses that ultrasonic motors have been known for over 30 years and are now used in small applications. Ultrasonic motors use piezoelectric materials to convert electric energy to motion via ultrasonic vibrations between a stator and rotor, achieving high speed and precision. They have advantages over electromagnetic motors such as high torque, compact size, and lack of magnetic interference. However, their use is limited by the cost of piezoelectric materials and generation of ultrasonic noise.
This document discusses piezoelectric ultrasonic motors. It begins with an introduction and overview of the presentation structure. It then describes the construction of ultrasonic motors as having a stator made of piezoelectric ceramic and an elastic body, along with a rotor, with no magnets or coils. It explains the principal operation of ultrasonic motors using piezoelectric effect to generate vibrations from an electric field. It classifies ultrasonic motors into standing wave, propagating wave, and traveling wave types and describes their operating mechanisms. It outlines applications and advantages of ultrasonic motors.
Complete Coverage on High velocity forming methods also known as high energy rate forming processes HVF and HERF. Very useful for mechanical engineering students and teachers.. Explosive forming, magnetic pulse forming, hydro forming, electro hydro forming discussed.
Linear accelerators (LINACs) are commonly used for external beam radiation therapy. [LINACs] use microwave technology to accelerate electrons which are then directed at a metal target to produce high-energy x-rays. Key LINAC components include an electron gun, accelerator structure in the gantry, and a treatment head housing components like collimators and flattening filters to shape the beam. LINACs have advanced over generations from early isocentric units to today's computer-driven systems that provide wide ranges of energy and precision treatment capabilities like IMRT.
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Magnetic levitation is a technique that has undergone extensive testing over the last few decades. For the past ten years, scientists have not begun to develop transport solutions based on magnetic levitation. This study describes the basic methods of magnetic levitation and the techniques it uses. Large scale magnetic levitation has major social and economic implications for the development of the transportation system. These elements are put to the test in a variety of scenarios to see if the time and effort invested in building a magnet based system was justified. Jacob Antony | Ebin Antony | Saji Sebastian "A Review on Magnetic Levitation Vehicles" Published in International Journal of Trend in Scientific Research and Development (ijtsrd), ISSN: 2456-6470, Volume-6 | Issue-1 , December 2021, URL: https://www.ijtsrd.com/papers/ijtsrd48009.pdf Paper URL: https://www.ijtsrd.com/engineering/mechanical-engineering/48009/a-review-on-magnetic-levitation-vehicles/jacob-antony
We have designed a Wind Generator as our final year Engineering project. For information please go through the presentation or else you can contact me. Feel free to give your valued suggestions
Superconductors have no electrical resistance below a certain temperature, allowing electric currents to flow without resistance. Particle accelerators use superconductors in their electromagnetic fields to steer and focus particle beams efficiently without resistance causing heat buildup. Superconducting magnets are crucial for particle accelerators as they generate strong electromagnetic fields without resistance, allowing accelerators to operate more effectively and advance our understanding of the universe through high-energy particle research.
Clinical Generators in Radiotherapy by Dr.Avilash.pptxAbhilashBanerjee3
This document discusses different types of clinical generators used in radiation therapy. It describes low and high energy generators, including van de Graff generators, betatrons, cyclotrons, microtrons, and linear accelerators. It provides details on the operating principles, components, and historical development of various particle accelerators such as cyclotrons, synchrocyclotrons, and linear accelerators. It also discusses the different parts of linear accelerators including electron injection systems, radio frequency power generators, waveguides, and safety features.
The document discusses the components and functioning of an X-ray tube. It describes the evolution from early gas tubes to modern Coolidge tubes. Key components include a cathode that emits electrons via thermionic emission, a target anode where X-rays are produced, and a rotating anode design that allows for higher power outputs by spreading heat load. Modern tubes operate similarly to Coolidge tubes but with refinements like line focal spots and rotating anodes to improve performance.
1) Magneto-rheological fluids are smart fluids whose viscosity increases greatly when subjected to a magnetic field, becoming nearly solid. Their viscosity and ability to transmit force can be precisely controlled by the magnetic field intensity.
2) MR fluids are made of magnetizable particles suspended in a carrier fluid. When a magnetic field is applied, the particles align and interact to increase viscosity.
3) Applications of MR fluids include vehicle suspensions, dampers, brakes, and prosthetic limbs, where their viscosity can be rapidly adjusted to control damping or resistance based on sensor inputs.
CBSE Class 12 Physics Investgatory Project file "SIMPLE DC MOTOR"deepaksingh1756
This document is a certificate for a student who completed an activity file on building a simple DC motor. It includes sections on the anatomy, physiology, construction, and troubleshooting of a basic DC motor. The motor uses a battery, wire coils, paper clips, and a magnet to generate rotation from electrical current. It works by applying the right hand rule to determine the direction of force on the coils from the magnetic field, causing the rotor to spin continuously.
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2. YYDLS
About Us
Magnetic Separators
- Vertical Ring High Gradient Electric Magnetic Separator DLS
- Trommel Screen DL Series
- Pair-pole High Intensity Magnetic Separator DLSD
- Dry Rare Earth Drum Magnetic Separator CXJ
- Dry Rare Earth Roll Magnetic Separator CR
- Wet Rare Earth Drum Magnetic Separator CT
Content
3. YYDLS
•Yueyang Dalishen Electromagnetic Magnetic
Co., Ltd., a leading electromagnetic equipment
manufacturer in Asia-Pacific region, is a S&T
contemporary enterprise integrated with
science, industry and trade. It is a main
member of Lifting Electromagnet Professional
Association of China, a high-tech company
participating into the China Torch Plan Project
and the master workstation of Hunan
University.
•Yueyang Dalishen, established in 1998, now
owns fixed assets of RMB 40,000,000,
registered capital RMB 10,280,000 and 308
employees, among which 60 are engineers and
16 are senior engineers.
office
workshop
About Us
4. YYDLS
Organization Chart
General
Manager
Vice G.M.
for
Production
Process & Material Department
Quality Control Department
Produce Admin Department YYDLS Workshops
Financial Department
H.R. Administration Department
Company Administration Office
Vice G.M.
for
Marketing
After-sale Service Department
Marketing Department
Magnetic Separator Dept
Foreign Trade Department
Domestic Trade Department
Sales Administration Office
Vice G.M.
for
Technology
Furnish Department
Technology Department
5. YYDLS
Dalishen is focused on design and producing electro or permanent magnetic
machineries and their auxiliary equipments with the brand "Cishen". We manufacture 10
series of 200 products, including high gradient magnetic separator, electric magnetic or
rare earth magnetic separator for tramp iron removal, trommel screen, lifting
electromagnet, cable reeling drum, rectification control panel, permanent magnetic
lifter, blackout magnetic-sustaining equipment, metal detector, etc. There are products
in different configuration with international technology for your special needs.
Our markets cover
metallurgy, machinery,
electricity,
transportation, mining,
chemistry, cement,
construction and other
industries in Europe,
America, Oceania,
Southeast Asia, Middle
East etc.
Products and Markets
7. YYDLS
Double Vertical Rings High Gradient
Magnetic Separator DLS is a mineral
beneficiation machine, which is
developed independently by YYDLS . It
is high intensity separator with patent
No. ZL200820119589.7. Currently, it is
the best high intensity separator with
excellent performance and
technology. The machine is featured
by technologies of rotary vertical rings
and backwash of concentrate, and is
equipped with high frequency
vibration mechanism that helps solve
matrix block. It has advantages of high
enrichment ratio and flexibility to
various particle size, pulp density and
grade of original ores. The machine
serve with high recovery rate and high
grade of concentrate for purifying
weak magnetic minerals and remove
Fe from non-metallic minerals.
Double Vertical Ring High Gradient Magnetic Separator DLS
8. Ferrous Metal
Recovering martite, hematite, limonite, siderite, chromites, ilmenite,
manganese. etc.
Non-ferrous
Metal
Recovering fine tungsten disseminated in tungstenic quartz reef;
recovering pyrrhotite from cassiterite polymetallic sulphide; separating
wolframite and cassiterite, limonite, wolframite and scheelite, garnet,
etc.
Non-metal
Purifying quartz, feldspar, kaolin and other raw materials for glass and
ceramics industry; removing iron from hot refractory minerals such as
sillimanite, andalusite and kyanite and removing detrimental impurities
from hormblende, mica, tourmaline, garnet, etc.
Other Minerals
Recovering tantalum and niobite, zinnwaldite and monazite; recovery
tailing of weak magnetic minerals; treating waste water of steel plant
and power plant; and clearing chemical plant polluted by catalyst.
Applicable Minerals
9. YYDLS
To make sure our
machine is
suitable for
separation of your
minerals, we offer
specimen test for
free.
We offer
customized
products as per
your specific
needs
Free guide for
erection and
commissioning
and train
operators for you.
Free Sample
Test
Erection &
Commissioning
Tailored Products
Note for Order
10. YYDLS
Structure and working principle
Features and Benefits
Structure Scheme, Calculation and Demonstration of High
Gradient
Users List
Application On Site
DLS HGMS Series
11. YYDLS
1. Rack
2. Ring driving
mechanism
3. Concentrate flusher
4. Liquid level tank
Structure Schematic
Drawing of DLS
12. YYDLS
5. Rotary ring
6. Concentrate bucket
7. Rinse bucket
8. Feeding bucket
9. Magnet yoke
10. Excitation coil
11. Vibrating mechanism
12. Vibrating motor
13.Vibrating support
14. Tailing bucket
15. Small tailing bucket
16. Middling bucket
20. YYDLS
Working Principle of DLS
The rotary rings are equipped with
matrixes of magnetic rods orspecial
magnetic medium. When beneficiation
started, the ring rotates clockwise, pulp is
fed into feeding bucket and flows into
the matrix through the gaps of upper
yoke. The magnetic medium are
magnetized in the background magnetic
field, forming a high gradient magnetic
field and attracting magnetic particles on
the surface of magnetic medium. With the
rotation of rings, the magnetic particles
are transported to the non-magnetic
upper apex and flushed into the
concentrate bucket by the flushing water.
Non-magnetic particles are transported
into the tailing bucket though the gaps of
lower yoke.
21. YYDLS
The structure of magnetic system is like the
shape of stud, as seen here
A steel backing plate is necessary for the
rotary of the rings, therefore, the magnetic
system is adjusted as seen here
If the rings with magnetic mediums rotate
in the magnetic pole, the rotary structure is
as seen here
The so-called Double Vertical Ring means there are two rings on each machine.
This special design is the magnetic structure of the machine. The backing plate
between the rings is for driving and supporting.
Features of DLS
Magnetic
System of
Rings
22. YYDLS
The magnetic particles in the pulp are
acted upon by forces such as gravity,
fluid drag, fluid wallop, etc., some of
them will be separated from the
matrixes when flow into the ring. To
minimize the effect of the fluid wallop,
the liquid level will be raised to
immerse the bottom matrixes. In this
way, the wallop on the attracted
magnetic particles will be lowered.
Particles will subside in the liquid. To
make more opportunities for particles
to meet the matrixes, the subsided
particles should be ascended and the
pulp should be waved. A vibrating
mechanism is designed. The
mechanism is made up of rubber seal
cup and reciprocate-in-line device. The
seal cup will change the volume of the
liquid in the machine, thus to vibrating
the liquid.
Vibrator and it's Function
Function of Pulsation
1.Lower the wallop acted on the
magnetic particles attracted by matrixes.
2.Separate the particles in the pulp
3.Make more particles touch with
matrixes
4.Remove the half inter-growth particles
from matrixes, to raise the grade of
concentrate.
vibration mechanism
23. YYDLS
The high gradient of magnetic field is produced
artificially. The magnetic medium generates a
magnetic inductive field in the background field to
change the uniform magnetic field to a non-
uniform one, increase the magnetic change rate
(gradient) and increase the attraction force on
magnetic particles. As a result, the beneficiation of
the magnetic separator is more effective to dress
lower intensity magnetic particles, such as hematite,
limonite, manganese, etc.
Magnetic induction line always cuts across. As seen
in Figure 3, the induction line starts from N pole to
S pole through matrixes. The magnetic intensity B2
of magnetic medium in the matrixes is far more
higher than background intensity B1. Here forms a
aberration magnetic field. The intensity on the
surface of magnetic medium is very high, but the
intensity close to them is dramatically lowered,
hence the magnetic change rate (gradient)is very
high.
Producing High Gradient
24. YYDLS
Jagged Steel Rod
As above mentioned, the induction line cuts
across, namely the way with the least
resistance. Since the resistance of air is much
more higher than that of magnetic medium,
more induction lines pass through the
magnetic medium before entering into the
air .
The point effect theory means more
induction lines pass through the point of
magnetic medium. The more induction lines
are, the higher magnetic intensity is. Thus the
intensity on the point of magnetic medium is
the highest.
According to this theory, we process the
magnetic medium with edges and corners,
which attract more magnetic particle of the
same size than magnetic medium with
smooth surface and beneficiate more fine
particles.
In this way, the recovery of magnetic medium
with edges and corners are much more higher
than the smooth-surface ones.
Feature: Point Effect
25. YYDLS
High
Background
Intensity
High
Magnetic
Gradient
Liquid
Automatic
Control
The magnetic materials is electrical pure iron DT4C (Fe:
99.5%)made by Taiyuan Iron & Steel (Group) Co., Ltd.,
raised the background intensity to 12000GS, much higher
than Q235 steel (10000 GS).
The magnetic materials is electrical pure iron DT4C (Fe:
99.5%)made by Taiyuan Iron & Steel (Group) Co., Ltd., raised the
background intensity to 12000GS, much higher than Q235 steel
(10000 GS).
The beneficiation is more stable and efficient. Like products in
China are manual control for liquid level adjustment, which
requires high stability of pulp feed-in that is uncertainty in some
degree.
Optimal design of magnetic medium in the matrix to improve the
inductive magnetic intensity and magnetic gradient, thereby, to
attract more magnetic particles and more small-sized particles. The
magnetic rod (Patent No.: ZL200920306697.X) is high saturation and
high permeability soft magnetic materials treated by ionitriding.
These rods are with higher abrasive resistance, making higher
gradient, stronger attraction force and higher recovery.
Benefits of DLS HGMS
26. YYDLS
The magnetic materials with low resistance, high
permeability and optimal designed matrix make the high
gradient and excellent performance available in lower
background intensity and lower excitation power.
The matrix can be de-gaussing in a short time, and the
remanence is low, concentrates are easily unloaded with
less water.
Energy-saving
Water-saving
Benefits of DLS HGMS
27. YYDLS
Safe and Stable
Long Service Life
The magnetic materials is electrical pure iron DT4C (Fe:
99.5%)made by Taiyuan Iron & Steel (Group) Co., Ltd.,
raised the background intensity to 12000GS, much higher
than Q235 steel (10000 GS).
The excitation coils are fastened with epoxy resin
adhesive to avoid vibration after electrified, thus
protecting the insulation of coils, prevent short circuit
and prolonging the service life.
Electronic components, driving medium, such as bearings,
reducer, belt and motor are high-quality products in and
abroad, and rubber tube valve ensure the security and
high performance of our magnetic separator.
The driving part is joined by expansion sleeve instead of flat
key, improving the stability.
Benefits of DLS HGMS
The excitation coils are fastened with epoxy resin
adhesive to avoid vibration after electrified, thus
protecting the insulation of coils, prevent short circuit
and prolonging the service life.
Electronic components, driving medium, such as bearings,
reducer, belt and motor are high-quality products in and
abroad, and rubber tube valve ensure the security and
high performance of our magnetic separator.
28. YYDLS
The magnetic materials is electrical pure iron DT4C (Fe:
99.5%)made by Taiyuan Iron & Steel (Group) Co., Ltd.,
raised the background intensity to 12000GS, much higher
than Q235 steel (10000 GS).
The speed of rotary ring and the frequency of high-
frequency vibration box (stroke box) are infinitely
variable controlled, making the best process parameter.
Remote control is available.
Automatic control of liquid level without human operation,
improving the stability of beneficiation.
Benefits of DLS HGMS
Convenient
Operation
29. YYDLS
Calculation Results and Introduction of
Magnetic Intensity of HGMS Structure Scheme,
Test
Organization
Super Conducting Magnet Center, Institute of High
Energy Physics of Chinese Academy of Sciences
Company
Yueyang Dalishen Electromagnetic Machinery Co., Ltd.
Method
ANSYS Finite Element Method software,
3D model of magnetic materials
2D model of matrix
Material
materials of yoke, iron core and magnetic pole are DT4
electronic pure iron
30. YYDLS
ANSYS Finite Element Model
Since the magnetic
materials are symmetrical,
1/4 syntactic model is
enough for calculation.
The syntactic model is as
seen Figure 1, the crimson
part is magnet yoke, light
blue part is iron core, the
pink part is the inside
circle magnetic pole and
the middle part is the gap
for matrixes.
Fig.1 3D Model
31. YYDLS
Fig.2 3D model finite element meshing & coil model
ANSYS Finite Element Model
32. YYDLS
Value: A=250mm ; width of coil: 400mm;
thickness of coil: 300mm; distance from central
magnetic body to inside of yoke: 1200mm; turns of
one coil: 3.125x105
AN.
Scheme (DLS-200)Ⅰ
Result 1
Magnetic field distribution of the central section of circle magnetic body
Fig.1-1
Magnetic fields
clouds map of
the section
33. YYDLS
Fig. 1-2 magnetic field
contour maps of the central
section
Intensity of the central magnetic field is measured as about 1.3T
through collecting the intensity of nodal points on the central section.
Scheme 1 (DLS-200)
35. YYDLS
As seen from the figures, the magnetic intensity of the iron core and magnetic pole
is very close to the magnetic saturation of magnetic materials, especially the core.
To maintain the intensity of central magnetic field, increase the sectional area of
iron core and decease the area of coil.
Fig.1-4 vector distribution of magnetic fieldResult of SchemeⅠ
36. YYDLS
Value : A=350mm; width of coil: 500mm; thickness of
coil: 400mm; distance between central magnetic body
and inside of yoke: 1600mm; Turns of one coil :
5.388x105
AN ;
Scheme (DLS-250)Ⅱ
Result
Magnetic field distribution of the central section of circle magnetic body
Fig2-1 Magnetic
fields clouds map
of section
37. YYDLS
Fig. 2-2 magnetic field
contour maps of the central
section
The intensity of the central magnetic field is measured as about 1.3T
through collecting the intensity of nodal points on the central section.
Scheme (DLS-250)Ⅱ
38. YYDLS
Result of Scheme Ⅱ
Fig. 2-3
magnetic field
clouds map
Magnetic fields distribution of yoke, iron core and magnetic pole
39. YYDLS
As seen from the figures, the magnetic intensity of the iron core and magnetic pole
is very close to the magnetic saturation of magnetic materials, especially the core.
To maintain the intensity of central magnetic field, increase the sectional area of
iron core and decease the area of coil.
Fig.2-4 vector
distribution of
magnetic field
Result of Scheme Ⅱ
40. YYDLS
Since the jagged magnetic rod is very different with magnetic body, for the sake of convenient
modeling, we build a 2D model of magnetic rods in 1.2 T magnetic field. The magnetic vector
is in the direction of Y axis and is perpendicular to magnetic rod. The calculated result of 4x4
magnetic rods in the central magnetic field is as following:
Fig.3.1 clouds map
of magnetic field
with jagged rods
1. The distribution of magnetic field with jagged rods and the distribution of
magnetic intensity and gradient.
Intensity of Jagged Rods in Matrix
41. YYDLS
Fig. 3.2 magnetic
vector map of
magnetic field with
jagged rod
1) The distribution of magnetic field with jagged rods and the distribution of
magnetic intensity and gradient.
Intensity of Jagged Rods in Matrix
42. YYDLS
The magnetic field intensity of jagged rod is obviously higher than that
of the basic background magnetic field, and the gradient is much higher
which varies periodically according to the distribution of jagged rod.
Curves of the magnetic inductive intensity and its gradient
Fig.3.3 distribution
curve B parallel to
Y axis x=0.008m
Intensity of Jagged Rods in Matrix
43. YYDLS
Curves of the magnetic inductive intensity and its gradient
Fig.3.4 distribution curve dB/dy parallel to Y axis, x=0.008m
Intensity of Jagged Rods in Matrix
44. YYDLS
Fig.3.5 distribution curve B parallel to Y axis, x=0.006m
Curves of the magnetic inductive intensity and its gradient
Intensity of Jagged Rods in Matrix
45. YYDLS
Fig.3.6 distribution curve dB/dy parallel to Y axis, x=0.006m
Curves of the magnetic inductive intensity and its gradient
Intensity of Jagged Rods in Matrix
48. YYDLS
Magnetic
intensity of
smooth rods is
smaller than
jagged rods,
the magnetic
gradient in
peripheral
direction is
almost equal
to jagged rods
and varies
periodically
according to
the
distribution of
rods.
Intensity of Smooth Rod Inside Matrix
2. The distribution of magnetic field with smooth rods and the
distribution of magnetic intensity and gradient.
Fig. 3.9 clouds map of magnetic field with smooth rods
49. YYDLS
Fig.3.10 magnetic vector of magnetic field with smooth rod
2. The distribution of magnetic field with smooth rods and the
distribution of magnetic intensity and gradient.
Intensity of Smooth Rod Inside Matrix
50. YYDLS
Relative curves of magnetic inductive intensity and its gradient
Fig.3.12 distribution curve dB/dy parallel to Y axis when
x=0.008m
Intensity of Smooth Rod Inside Matrix
51. YYDLS
Fig.3.12 distribution curve dB/dy parallel to Y axis when x=0.008m
Relative curves of magnetic inductive intensity and its gradient
Intensity of Smooth Rod Inside Matrix
52. YYDLS
Note: the
value of B in
some interval
seems like
liner or
straight line
(constant).
This is
because the
interval is very
short (1 or 2
mm). In fact,
the value is
not constant.
Distribution curves of magnetic field with smooth rods and the
distribution of magnetic intensity and gradient of magnetic
Fig.3.13 distribution curve B parallel to Y axis when x=0.006m
Intensity of Smooth Rod Inside Matrix
53. YYDLS
Fig.3.14 distribution curve dB/dy parallel to Y axis, x=0.006m
Distribution curves of magnetic field with smooth rods and the
distribution of magnetic intensity and gradient of magnetic
Intensity of Smooth Rod Inside Matrix
56. YYDLS
The following is the distribution curve of B and dB/dy on the
straight line of 1.8 mm next to X axis and parallel to Y axis
Fig.3.17 distribution curve of B parallel to Y axis, x=0.008m
Intensity of Smooth Rod Inside Matrix
57. YYDLS
The following is the distribution curve of B and dB/dy on the
straight line of 1.8 mm next to X axis and parallel to Y axis
Fig.3.18 distribution curve of dB/dy parallel to Y axis, x=0.008m
Intensity of Smooth Rod Inside Matrix
58. YYDLS
Structure Scheme and Calculation
1. The magnetic system structure of DLS-200 and DLS-250 is
science. Theoretical calculation of magnetic intensity of central
air gaps of magnetic poles is 1.3T (13000GS), reached the
expected value of 1.2T (12000GS)
Conclusion
2. It is obvious that the magnetic intensity of magnetic field with
jagged rods is higher than that with smooth rods. The intensity on
jagged rods is up to 3.148T (31480GS), while the intensity of
smooth rods is up to 2.573T (25730GS). With jagged rods, the
magnetic gradient is several times higher, and the db/dy varies
dramatically. With smooth rods, the gradient is slightly increased
and the gradient db/dy varies gently.
3. According to Fm=μ×ν×B×(dB/dy), the format forces acting
upon the particles in magnetic field, and the calculated result
above mentioned, the magnetic force on particles in magnetic
field with jagged rods is much higher than that in magnetic field
with smooth rods.
59. YYDLS
2010 User List
No. Company Model Q.t.y materials
1
Shandong Binzhou Weiqiao Aluminium
Industrial Technology Co., Ltd.
DLS-200 9 Red mud
2 Shandong Xinfa Renewable Energy Co., Ltd. DLS-200 3 Red mud
3 Jinan Steel (Group) Co. DLS-200 3 Hematite
4 Liaoning Huludao Bajiazi Mining Co., Ltd. DLS-200 3 MnCO3
5 Shanxi Heigou Iron Mining Co., Ltd. DLS-200 2 Hematite and Limonite
6 Henan Songshan Heavy Industries Co.,Ltd. DLS-200 6 Hematite and magnetite
7 Henan Songshan Heavy Industries Co.,Ltd. DLS-250 2 Hematite and magnetite
8 Dandong New Silk Road Trading Co., Ltd. DLS-200 4 Limonite
9 Dandong New Silk Road Trading Co., Ltd. DLS-250 1 Limonite
10
Liaocheng Jiachang Renewable Resources
Co., Ltd.
DLS-200 4 Hematite
60. YYDLS
11 Kunming Xichen Mining Co., Ltd. DLS-200 8 Hematite and magnetite
12 Shandong Lijing Mining Company DLS-200 2 Silica Sand
13 Gansu Zixin Mining Co., Ltd. DLS-200 2 Andalusite
14 Pingjiang Feldspar Mineral Company DLS-200 2 Feldspar
15 Shandong Lijing Silica Sand (Group) Co., Ltd. DLS-200 2 Silicon Sand
16 Indian Kejem Pvt DLS-200 4 Hematite
17 Mr. Li Weixin in Guangdong DLS-200 2 Feldspar
18 Hainan Mining Co., Ltd. DLS-200 1 Hematite
19 Hainan Mining Co., Ltd. DLS-250 4 Hematite
20 Shandong Nanshan Aluminum Co., Ltd. DLS-200 2 Red mud
21 China Aluminum Corp.Pingguo Branch DLS-200 4 Red mud
22 China Aluminum Corp. Zhongzhou Branch DLS-200 1 Red mud
2010 User List
63. YYDLS
Trommel screen is
used for dreg
insulation to assist
DLS magnetic
separator and for
other necessary
working.
Advantages: low
speed, high
abrasive
resistance, less
trouble and easy
for operation and
maintenance.
DL Trommel Screen
64. YYDLS
DLSD series magnetic separator
(Patent No.:
ZL200920065387.3) is for super
high grade of non-metal
beneficiation, it is specially
designed by YYDLS, introduced
with the latest international
technologies on magnetic
separators. It is now the best
high intensity electromagnetic
separator in China with
advantages of high flexibility to
various concentrations of pulp,
particles sizes and mineral
grades. Being easy and safe for
operation and maintenance, it
is the ideal equipment for iron
removal of non-metallic
minerals.
Pair-pole High Intensity Magnetic Separator DLSD Series
65. YYDLS
* For refining (iron and titanium removal) nonmetallic
minerals, such as quartz, feldspar, nepheline, fluorite,
sillimanite, spodumene, kaolin, etc.
* For refining low-intensity magnetic separation.
Pair-pole High Intensity Magnetic Separator DLSD Series
67. Pair-pole High Intensity Magnetic Separator DLSD Series
Working Principle
The magnetic field of this
machine is produced by
electrified copper coils. The
magnetic lines pass through the
matrix, making high gradient.
When mineral pulp with
magnetic particles traverses the
matrix from the bottom of the
machine, magnetic particles are
attracted by the high magnetic
field on the surface of magnetic
medium. All valves and
electronic components are
controlled by PLC software, and
the magnetic particles will be
removed automatically.
68. YYDLS
Dry Drum Type Permanent
Magnetic Separator CXJ
series are for beneficiation
of high intensity magnetic
minerals, such as
magnetite, titanic
magnetite, franklinite,
pyrrhotite, oxymagnetite,
and for removal of iron in
metallurgy, coal industry,
mining, insulation material,
cement industry, chemistry,
building material and food
industry, etc. with large
processing capacity.
Dry Drum Type Permanent Magnetic Separator CXJ
69. YYDLS
It is suitable for
dressing and refining
strong magnetic
particles(≤10mm) and
recovery of heavy
magnetic medium, and
removing iron.
Features: high intensity,
strong attraction force
and high separating
efficiency, free of
maintenance, energy
saving, safe and
reliable.
Dry Drum Type Permanent Magnetic Separator CXJ
70. YYDLS
Functions:
1. discarding tailings and
purifying coarse particles
of feebly magnetic
minerals, such as
hematite, limonite,
manganese, etc.
2. processing of non-
metallic minerals, such as
silica, sillimanite, rutile,
kyanite, garnet, quartz,
frigidite, feldspar, zircon,
adamantite, diamond, etc.
3. removing magnetic
impurities from abrasives,
catalysis and other
powders.
Dry Roll Type Permanent Magnetic Separator CR Series
71. YYDLS
Wet Rare Earth Drum Magnetic Separator CT
The CT series MS are for removing strong magnetic substances, such as magnetite,
Ti magnetite, franklinite, pyrrhotite, maghemite, etc. from week magnetic metals and
non magnetic materials by wet concentration.
Three types:
1. Half counter-flow tank (CTB) 2. Direct flow type (CTS) 3. Counter flow type
(CTN)