The article analyzes the engineering design and the process of transportation of coarse-grained rock mass by two-contour steep-inclined conveyors with stationary clamping devices, shows their most significant disadvantages. It shows the structure of the dual steeply inclined conveyor with a moving clamping elements, developed by the staff of the Institute of Mining UB RAS, the design feature of which is the implementation of the clamping elements in the form of corrugations affixed to the outer (working) belt surface of the load carrying profile. Design features of the steep-slope belt conveyor with moving clamping elements in form of corrugations provide a reliable rise of uneven flow of rock mass due to: the simultaneous use of forced pressing of the transported material in the chute of the load-bearing belt and of the effect of deep fluting; clamping elements moving synchronously with the load-bearing belt, resilient-elastic properties of clamping elements, allowing them to perform an additional supporting function for the transported material. Studies have shown that the developed design provides an increase in the coefficient of use of the equipment in 2 times, reducies tape wear by 20-40%, compared with foreign analogues.
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The document discusses different types of conveyor belt systems used to transport materials, including belt conveyors, vibrating conveyors, pneumatic conveyors, and flexible conveyors. Belt conveyors use pulleys and belts to move materials along a path and can be used for bulk materials or general goods. Vibrating conveyors contain materials between two surfaces that vibrate to gently move products. Pneumatic conveyors use air pressure through pipes to transport powdered or small materials vertically or to multiple destinations. Flexible conveyors move products on an aluminum or steel beam using a plastic chain.
This document discusses high angle conveying systems used in surface mines as an alternative to hauling material by truck. It describes several types of high angle conveyor systems, including pipe conveyors, flexowell conveyors, pocketlift conveyors, and sandwich belt conveyors. It focuses on describing the sandwich belt conveyor system in detail, explaining how it uses two conveyor belts pressed together to gently contain material and allow conveying up extremely steep angles, sometimes vertically.
This document discusses high angle conveying systems used in surface mines as an alternative to hauling material by truck. It describes several types of high angle conveyor systems, including pipe conveyors, flexowell conveyors, pocketlift conveyors, and sandwich belt conveyors. It focuses on describing the sandwich belt conveyor system in detail, explaining how it uses two conveyor belts pressed together to gently contain material and allow steep inclines or even vertical lifting while maintaining reliability.
Vibrating conveyors move materials through the use of vibration rather than belts or screws. They are useful for conveying bulk materials either horizontally or at slight inclines. The document discusses the definition, types, working principle, functions, power requirements, applications, advantages, and limitations of vibrating conveyors. Vibrating conveyors transfer material through a trough or tube that is flexibly mounted and vibrated, causing the material to move in a continuous flow. They are well-suited for handling fragile or irregular items and can operate in harsh environments.
This document discusses various types of conveyor systems used to transport materials. It describes common conveyor types like belt, roller, wheel, slat, vibrating, screw, flight, apron, bucket and their basic working mechanisms. Key elements covered include conveyor drives, motors, auxiliary equipment and controls. Design considerations for conveyor systems like capacity, travel length, material properties and costs are also outlined.
Conveying equipment transports material horizontally, vertically, or at an incline from one location to another over a stationary structure through continuous movement using belts, chains, or other means. Common types of conveying equipment used in construction include belt conveyors, screw conveyors, bucket elevators, and aerial transport systems. Conveying equipment allows for efficient transportation of materials and increases output by facilitating continuous operation without waiting periods.
This document provides information on various types of material transport equipment, specifically different types of conveyors. It describes chain conveyors, which are used worldwide to transport a variety of bulk materials across many industries. It then details two main types of conveyor chains - hollow bearing pin chain and solid bearing pin chain. The document also provides information on tow line conveyors, trolley conveyors, sorting conveyors, and automated guided vehicle (AGV) systems. It describes the design, operation, applications, and advantages of each type of conveyor system.
A conveyor system moves materials from one location to another and is useful for transporting heavy or bulky items. There are different types of conveyors like aluminum frame, belt, cleated belt, modular, food quality, plastic chain, magnetic belt, and vacuum belt conveyors. Each has their own advantages such as handling small parts, accumulation, clean rooms, turns, holding items, and upsizing changes. While conveyors provide silent, continuous transport requiring less labor, they also have disadvantages like high power usage and not being suitable for hot, large, high bulk, or sticky materials.
The document discusses different types of conveyor belt systems used to transport materials, including belt conveyors, vibrating conveyors, pneumatic conveyors, and flexible conveyors. Belt conveyors use pulleys and belts to move materials along a path and can be used for bulk materials or general goods. Vibrating conveyors contain materials between two surfaces that vibrate to gently move products. Pneumatic conveyors use air pressure through pipes to transport powdered or small materials vertically or to multiple destinations. Flexible conveyors move products on an aluminum or steel beam using a plastic chain.
This document discusses high angle conveying systems used in surface mines as an alternative to hauling material by truck. It describes several types of high angle conveyor systems, including pipe conveyors, flexowell conveyors, pocketlift conveyors, and sandwich belt conveyors. It focuses on describing the sandwich belt conveyor system in detail, explaining how it uses two conveyor belts pressed together to gently contain material and allow conveying up extremely steep angles, sometimes vertically.
This document discusses high angle conveying systems used in surface mines as an alternative to hauling material by truck. It describes several types of high angle conveyor systems, including pipe conveyors, flexowell conveyors, pocketlift conveyors, and sandwich belt conveyors. It focuses on describing the sandwich belt conveyor system in detail, explaining how it uses two conveyor belts pressed together to gently contain material and allow steep inclines or even vertical lifting while maintaining reliability.
Vibrating conveyors move materials through the use of vibration rather than belts or screws. They are useful for conveying bulk materials either horizontally or at slight inclines. The document discusses the definition, types, working principle, functions, power requirements, applications, advantages, and limitations of vibrating conveyors. Vibrating conveyors transfer material through a trough or tube that is flexibly mounted and vibrated, causing the material to move in a continuous flow. They are well-suited for handling fragile or irregular items and can operate in harsh environments.
This document discusses various types of conveyor systems used to transport materials. It describes common conveyor types like belt, roller, wheel, slat, vibrating, screw, flight, apron, bucket and their basic working mechanisms. Key elements covered include conveyor drives, motors, auxiliary equipment and controls. Design considerations for conveyor systems like capacity, travel length, material properties and costs are also outlined.
Conveying equipment transports material horizontally, vertically, or at an incline from one location to another over a stationary structure through continuous movement using belts, chains, or other means. Common types of conveying equipment used in construction include belt conveyors, screw conveyors, bucket elevators, and aerial transport systems. Conveying equipment allows for efficient transportation of materials and increases output by facilitating continuous operation without waiting periods.
This document provides information on various types of material transport equipment, specifically different types of conveyors. It describes chain conveyors, which are used worldwide to transport a variety of bulk materials across many industries. It then details two main types of conveyor chains - hollow bearing pin chain and solid bearing pin chain. The document also provides information on tow line conveyors, trolley conveyors, sorting conveyors, and automated guided vehicle (AGV) systems. It describes the design, operation, applications, and advantages of each type of conveyor system.
A conveyor system moves materials from one location to another and is useful for transporting heavy or bulky items. There are different types of conveyors like aluminum frame, belt, cleated belt, modular, food quality, plastic chain, magnetic belt, and vacuum belt conveyors. Each has their own advantages such as handling small parts, accumulation, clean rooms, turns, holding items, and upsizing changes. While conveyors provide silent, continuous transport requiring less labor, they also have disadvantages like high power usage and not being suitable for hot, large, high bulk, or sticky materials.
This document discusses different types of conveyor systems used to move materials from one location to another. It describes screw conveyors, flight and apron conveyors, bucket elevators, and pneumatic and hydraulic conveyors. It also discusses considerations for handling unit loads and ensuring peak performance of conveyor systems through proper inspection, maintenance and monitoring.
Chain conveyors use continuous chains wrapped around sprockets to transport material. There are four main types based on whether the chain slides or rolls and if material is pushed or carried. Chain conveyors can be arranged horizontally, inclined, or vertically. Apron conveyors directly carry material on overlapping metal plates, allowing them to handle hot or abrasive loads. Flight conveyors use attached plates or flights pulled along a trough to push material, and are used for horizontal or inclined transport, especially of steeper angles. Design considerations for both include the material properties, capacity, lump size, conveyor length and incline.
In this slide you may know about types of conveyor belt and their uses. We are leading B2B Portal providing best manufacturers and suppliers of conveyor belt. If you are looking for conveyor belt in bulk, please visit our site.
The document describes belt conveyors, which are used to transport material horizontally or at an incline. The key components of a belt conveyor are the belt, idlers, pulleys, drive system, and supporting structure. The belt is made of fabric or steel cords encased in rubber and forms the moving surface. Idlers support the belt and come in different types. Pulleys move and control the tension of the belt. The drive system powers the pulleys. Belt conveyors are widely used in mining and processing plants to efficiently transport materials over long distances at high capacities.
The document discusses pipe conveyors and compares them to traditional troughed conveyors. Some key points:
- Pipe conveyors can negotiate tighter curves than troughed belts, require fewer transfer points, and have less spillage, but require more power due to additional idlers.
- Carrying capacity is higher for pipe conveyors of the same width compared to troughed belts, but pipe conveyors require wider belts.
- Idler spacing must be closer for pipe conveyors to maintain the pipe shape, significantly increasing idler and bracket costs.
- Proper belt training is important for pipe conveyors to prevent damage and leaks, as the belt forms a complete pipe around material.
Conveyors are used to move materials over a fixed path between specific points when there is sufficient volume. There are various types of conveyors classified by the product handled, location, and ability to accumulate. Common types include belt conveyors to move bulk materials horizontally, roller conveyors for heavy unit loads, and pneumatic conveyors using air pressure to move materials through enclosed pipes. Sortation conveyors are also used to merge and separate products to specific destinations using diverters or pop-up devices.
Belt conveyors use an endless belt to transport material between pulleys. They are classified by their design and application as general purpose or special purpose, and by their profile path as horizontal or inclined. Key components include the belt, drive mechanism, pulleys, idlers, and loading/unloading devices. Belts are made of materials like rubber or woven cloth. Design considerations for belt conveyors include capacity, speed, belt width and thickness, pulley diameters, horsepower requirements, belt tension, trough angles of idlers, and idler spacing. Belt conveyors offer high capacity, flexibility, and reliability but have high initial costs and cannot transport hot or vertically.
This document describes the components, classification, capacity calculation, advantages, and limitations of bucket elevators. Bucket elevators are commonly used to vertically transport bulk materials and consist of a head section, boot section, buckets attached to a belt or chain, and a motor. They are classified based on the type of material handled and discharge method. Formulas are provided to calculate capacity based on bucket size and belt speed. Belt systems have advantages over chain systems like allowing for higher speeds and quieter operation. Limitations include maximum lump sizes and restrictions on sticky or corrosive materials.
This document provides information about chute conveyors. It introduces chute conveyors and discusses their uses, types including gravity chute conveyors and spiral chute conveyors. It describes how gravity chute conveyors and spiral chute conveyors work using gravity and/or additional force from machines. The advantages and disadvantages of gravity chute conveyors are outlined. Advantages of spiral chute conveyors include space savings, requiring only one drive, cost savings, and energy savings.
This document provides information on belt conveyors, including their history, components, working principles, types, and applications in mining. It discusses how belt conveyors transport material between two pulleys using an endless loop belt. The key components include the belt, idlers, tensioning equipment, and drive head. Belt conveyors are widely used in mining and other industrial settings to continuously move material over long distances.
This document discusses different types of conveyors used for transporting solid materials, including belt conveyors, bucket conveyors, screw conveyors, and pneumatic conveyors. It provides details on the basic principles and components of each type. Belt conveyors transport material horizontally or inclined on a motor-driven rotating belt. Bucket conveyors use motor-driven chains carrying buckets to move material vertically or horizontally. Screw conveyors enclose material in a trough that is moved along by a rotating screw. Pneumatic conveyors use high velocity air to fluidize and transport powder or granular materials through pipes.
This document discusses various types of conveyors used to transport packages and materials, including their design and recommended usage. It covers gravity conveyors, skatewheel conveyors, roller conveyors, belt conveyors, screw conveyors, bucket conveyors, and pneumatic conveyors. For each type, it provides details on components, capacity, speed, inclination limits, and other specifications. The document concludes with rules of thumb for selecting and sizing different conveyor types based on the material and throughput requirements.
The document presents information on various types of conveyors used for material handling, including belt conveyors, bucket elevators, screw conveyors, pneumatic conveyors, and chain conveyors. It provides details on the components, operation, and specifications of each type of conveyor. The key conveyor types discussed are belt conveyors, bucket elevators, and screw conveyors, with information on their configuration, capacity calculations, power requirements and applications.
Design of vibratory conveyor and its applicationsMostafa Ashour
The document summarizes the key aspects of vibratory conveyors. It discusses the main principles and advantages of vibratory conveyors, including using vibrations for material transfer and providing efficient transportation. It also outlines the main applications and types of vibratory conveyors. Additionally, the document covers the theory behind vibratory conveyor design, including analyses of throw number, machine number, drive angle, transport efficiency, material velocity, and solids flow rate. It describes the steps for vibratory conveyor design calculations and software development in Excel and Visual Studio. Finally, it discusses practical tests conducted on a vibratory conveyor using a hammer test and velocity test.
This document provides information about belt conveyors, including their main components, applications, advantages, and limitations. It discusses how belt conveyors are used widely in mineral industries to transport materials horizontally or at an incline. The key information provided includes:
- The main components of a belt conveyor are the belt, idlers, pulleys, drive, and supporting structure.
- Belt conveyors can handle a wide range of materials and capacities, transport materials over long distances economically, and integrate with other equipment flexibly.
- However, loading/transfer points and protective devices need careful design, and the belt requires high initial tension and restrictions on lump sizes.
- Tables provide maximum safe inclinations for
Belt conveyors transport solid objects and bulk materials over long distances using a closed loop rubber or textile belt. They are composed of three main parts: the carcass for strength and support, skims for adhesion between carcass layers, and covers to protect the carcass. Belt conveyors use idler rollers to support the belt and tensioning devices like screw or hydraulic take-ups to maintain proper tension as the belt lengthens from use. Inclined conveyors also require holdbacks to prevent the loaded belt from reversing and accelerating out of control.
This document summarizes a seminar presentation on belt conveyors. It outlines the main elements of belt conveyors including belts, idlers, pulleys, drive units and supporting structures. It also discusses aspects of belt conveyor design such as capacity calculation, belt tension, selection of belts, pulleys, motors and idler spacing. The document concludes by explaining the working, advantages, disadvantages and maintenance of belt conveyor systems.
Rubber Sidewall Conveyor Belt for Incline Material transport. Sidewall conveyor belt suitable for conveying powdery and massive materials can work with an obliquity from 0-90C. And the obliquity can be changed while conveying.Cleat type have T, TS, C , TC and TCS
Belt conveyor system_Advanced Construction Technology (Semester-6), Civil Eng...A Makwana
This document provides an outline and overview of belt conveyor systems. It discusses the key components of belt conveyors including belts, pulleys, idlers, drives, motors, take-ups, holdbacks, and feeders. It also covers the selection and design of conveyor belts, precautions for longer belt life, and calculating belt capacity. Methods for determining the power required to operate belt conveyors are presented.
Design, Simulation & Optimization of Gravity Spiral Roller Conveyer with Auto...IRJET Journal
The document describes the design, simulation and optimization of a vertical gravity spiral roller conveyor system with an automatic collision avoidance system for transporting boxes between 5 floors of a building. Key aspects include:
1. Designing the helical angle, roller assembly, frame and other parts using CAD software and analyzing them through finite element analysis for strength and modal properties.
2. Optimizing the design for weight reduction and cost effectiveness while maintaining required strength and durability.
3. Developing an automatic collision avoidance system using ultrasonic sensors and an Arduino board to prevent collisions between boxes entering and exiting each floor.
This document discusses underground coal mining methods and operations. It begins by describing different means of accessing underground coal seams, such as adits, shafts, and cross measure drifts. Factors to consider in selecting an access method include coal clearance, ventilation, topography, overburden depth, and costs. It then discusses development work, including driving main roadways and cut-throughs, and the equipment used like continuous miners and roof bolters. Pillars are left behind to support the mine openings, including barrier pillars to separate panels and chain pillars to control subsidence during longwall mining.
This document discusses different types of conveyor systems used to move materials from one location to another. It describes screw conveyors, flight and apron conveyors, bucket elevators, and pneumatic and hydraulic conveyors. It also discusses considerations for handling unit loads and ensuring peak performance of conveyor systems through proper inspection, maintenance and monitoring.
Chain conveyors use continuous chains wrapped around sprockets to transport material. There are four main types based on whether the chain slides or rolls and if material is pushed or carried. Chain conveyors can be arranged horizontally, inclined, or vertically. Apron conveyors directly carry material on overlapping metal plates, allowing them to handle hot or abrasive loads. Flight conveyors use attached plates or flights pulled along a trough to push material, and are used for horizontal or inclined transport, especially of steeper angles. Design considerations for both include the material properties, capacity, lump size, conveyor length and incline.
In this slide you may know about types of conveyor belt and their uses. We are leading B2B Portal providing best manufacturers and suppliers of conveyor belt. If you are looking for conveyor belt in bulk, please visit our site.
The document describes belt conveyors, which are used to transport material horizontally or at an incline. The key components of a belt conveyor are the belt, idlers, pulleys, drive system, and supporting structure. The belt is made of fabric or steel cords encased in rubber and forms the moving surface. Idlers support the belt and come in different types. Pulleys move and control the tension of the belt. The drive system powers the pulleys. Belt conveyors are widely used in mining and processing plants to efficiently transport materials over long distances at high capacities.
The document discusses pipe conveyors and compares them to traditional troughed conveyors. Some key points:
- Pipe conveyors can negotiate tighter curves than troughed belts, require fewer transfer points, and have less spillage, but require more power due to additional idlers.
- Carrying capacity is higher for pipe conveyors of the same width compared to troughed belts, but pipe conveyors require wider belts.
- Idler spacing must be closer for pipe conveyors to maintain the pipe shape, significantly increasing idler and bracket costs.
- Proper belt training is important for pipe conveyors to prevent damage and leaks, as the belt forms a complete pipe around material.
Conveyors are used to move materials over a fixed path between specific points when there is sufficient volume. There are various types of conveyors classified by the product handled, location, and ability to accumulate. Common types include belt conveyors to move bulk materials horizontally, roller conveyors for heavy unit loads, and pneumatic conveyors using air pressure to move materials through enclosed pipes. Sortation conveyors are also used to merge and separate products to specific destinations using diverters or pop-up devices.
Belt conveyors use an endless belt to transport material between pulleys. They are classified by their design and application as general purpose or special purpose, and by their profile path as horizontal or inclined. Key components include the belt, drive mechanism, pulleys, idlers, and loading/unloading devices. Belts are made of materials like rubber or woven cloth. Design considerations for belt conveyors include capacity, speed, belt width and thickness, pulley diameters, horsepower requirements, belt tension, trough angles of idlers, and idler spacing. Belt conveyors offer high capacity, flexibility, and reliability but have high initial costs and cannot transport hot or vertically.
This document describes the components, classification, capacity calculation, advantages, and limitations of bucket elevators. Bucket elevators are commonly used to vertically transport bulk materials and consist of a head section, boot section, buckets attached to a belt or chain, and a motor. They are classified based on the type of material handled and discharge method. Formulas are provided to calculate capacity based on bucket size and belt speed. Belt systems have advantages over chain systems like allowing for higher speeds and quieter operation. Limitations include maximum lump sizes and restrictions on sticky or corrosive materials.
This document provides information about chute conveyors. It introduces chute conveyors and discusses their uses, types including gravity chute conveyors and spiral chute conveyors. It describes how gravity chute conveyors and spiral chute conveyors work using gravity and/or additional force from machines. The advantages and disadvantages of gravity chute conveyors are outlined. Advantages of spiral chute conveyors include space savings, requiring only one drive, cost savings, and energy savings.
This document provides information on belt conveyors, including their history, components, working principles, types, and applications in mining. It discusses how belt conveyors transport material between two pulleys using an endless loop belt. The key components include the belt, idlers, tensioning equipment, and drive head. Belt conveyors are widely used in mining and other industrial settings to continuously move material over long distances.
This document discusses different types of conveyors used for transporting solid materials, including belt conveyors, bucket conveyors, screw conveyors, and pneumatic conveyors. It provides details on the basic principles and components of each type. Belt conveyors transport material horizontally or inclined on a motor-driven rotating belt. Bucket conveyors use motor-driven chains carrying buckets to move material vertically or horizontally. Screw conveyors enclose material in a trough that is moved along by a rotating screw. Pneumatic conveyors use high velocity air to fluidize and transport powder or granular materials through pipes.
This document discusses various types of conveyors used to transport packages and materials, including their design and recommended usage. It covers gravity conveyors, skatewheel conveyors, roller conveyors, belt conveyors, screw conveyors, bucket conveyors, and pneumatic conveyors. For each type, it provides details on components, capacity, speed, inclination limits, and other specifications. The document concludes with rules of thumb for selecting and sizing different conveyor types based on the material and throughput requirements.
The document presents information on various types of conveyors used for material handling, including belt conveyors, bucket elevators, screw conveyors, pneumatic conveyors, and chain conveyors. It provides details on the components, operation, and specifications of each type of conveyor. The key conveyor types discussed are belt conveyors, bucket elevators, and screw conveyors, with information on their configuration, capacity calculations, power requirements and applications.
Design of vibratory conveyor and its applicationsMostafa Ashour
The document summarizes the key aspects of vibratory conveyors. It discusses the main principles and advantages of vibratory conveyors, including using vibrations for material transfer and providing efficient transportation. It also outlines the main applications and types of vibratory conveyors. Additionally, the document covers the theory behind vibratory conveyor design, including analyses of throw number, machine number, drive angle, transport efficiency, material velocity, and solids flow rate. It describes the steps for vibratory conveyor design calculations and software development in Excel and Visual Studio. Finally, it discusses practical tests conducted on a vibratory conveyor using a hammer test and velocity test.
This document provides information about belt conveyors, including their main components, applications, advantages, and limitations. It discusses how belt conveyors are used widely in mineral industries to transport materials horizontally or at an incline. The key information provided includes:
- The main components of a belt conveyor are the belt, idlers, pulleys, drive, and supporting structure.
- Belt conveyors can handle a wide range of materials and capacities, transport materials over long distances economically, and integrate with other equipment flexibly.
- However, loading/transfer points and protective devices need careful design, and the belt requires high initial tension and restrictions on lump sizes.
- Tables provide maximum safe inclinations for
Belt conveyors transport solid objects and bulk materials over long distances using a closed loop rubber or textile belt. They are composed of three main parts: the carcass for strength and support, skims for adhesion between carcass layers, and covers to protect the carcass. Belt conveyors use idler rollers to support the belt and tensioning devices like screw or hydraulic take-ups to maintain proper tension as the belt lengthens from use. Inclined conveyors also require holdbacks to prevent the loaded belt from reversing and accelerating out of control.
This document summarizes a seminar presentation on belt conveyors. It outlines the main elements of belt conveyors including belts, idlers, pulleys, drive units and supporting structures. It also discusses aspects of belt conveyor design such as capacity calculation, belt tension, selection of belts, pulleys, motors and idler spacing. The document concludes by explaining the working, advantages, disadvantages and maintenance of belt conveyor systems.
Rubber Sidewall Conveyor Belt for Incline Material transport. Sidewall conveyor belt suitable for conveying powdery and massive materials can work with an obliquity from 0-90C. And the obliquity can be changed while conveying.Cleat type have T, TS, C , TC and TCS
Belt conveyor system_Advanced Construction Technology (Semester-6), Civil Eng...A Makwana
This document provides an outline and overview of belt conveyor systems. It discusses the key components of belt conveyors including belts, pulleys, idlers, drives, motors, take-ups, holdbacks, and feeders. It also covers the selection and design of conveyor belts, precautions for longer belt life, and calculating belt capacity. Methods for determining the power required to operate belt conveyors are presented.
Design, Simulation & Optimization of Gravity Spiral Roller Conveyer with Auto...IRJET Journal
The document describes the design, simulation and optimization of a vertical gravity spiral roller conveyor system with an automatic collision avoidance system for transporting boxes between 5 floors of a building. Key aspects include:
1. Designing the helical angle, roller assembly, frame and other parts using CAD software and analyzing them through finite element analysis for strength and modal properties.
2. Optimizing the design for weight reduction and cost effectiveness while maintaining required strength and durability.
3. Developing an automatic collision avoidance system using ultrasonic sensors and an Arduino board to prevent collisions between boxes entering and exiting each floor.
This document discusses underground coal mining methods and operations. It begins by describing different means of accessing underground coal seams, such as adits, shafts, and cross measure drifts. Factors to consider in selecting an access method include coal clearance, ventilation, topography, overburden depth, and costs. It then discusses development work, including driving main roadways and cut-throughs, and the equipment used like continuous miners and roof bolters. Pillars are left behind to support the mine openings, including barrier pillars to separate panels and chain pillars to control subsidence during longwall mining.
This document discusses an in-pit crusher conveyor system used at an open pit coal mine. It describes the system as using a semi-mobile crushing plant that can be periodically relocated as mining progresses. The crushed material is then transported out of the pit using belt conveyors. Maintaining and relocating the semi-mobile crushing plant every 1-2 years helps minimize truck haulage distances and costs within the open pit mine.
Study of strata control in an ug coal mine being worked by continuous minerSafdar Ali
The document discusses the process of installing and monitoring telltales to measure roof movement in underground coal mines. It provides 12 step-by-step instructions for installing a telltale, which involves drilling a hole in the roof, inserting anchor rods and wire, and securing a reference tube and dial plate to allow future measurements. Miners are responsible for recording the color-coded readings of all telltales in their section at the start and end of each shift to monitor for any roof movement or convergence.
Main objective of the executed researches was justification of the location of entry
providing its maintenance in a bearing pressure zone. Researches were carried out for
conditions of the Prokopyevsk and Kiselevsky field of the Kuznetsk coal basin
(Russia). Researches were conducted by a finite element method. When performing
researches the provision entry relative of a regional part of the massif and property of
coal changed. As a result of researches influence of strength of coal and the location
of entry on the stress and strain state of the massif is established and the conclusion is
drawn on need of increase in height of a slice up to 10 m. Recommendations of
increase in height of each subsequent slice at mining of soft coals are also made. The
novelty of work consists in establishment of dependences of the stress and strain state
of the massif on height of the mining slice.
Numerical simulation and optimization of pile designIRJET Journal
1) The document discusses numerical simulation and optimization of pile design for underground structures. It aims to analyze the performance of pile foundations made of different materials under varying loading conditions.
2) A finite element model is created to simulate the structure and analyze it under different loads. The maximum displacement and stresses increase with increasing load.
3) Taguchi method and ANOVA techniques are used to optimize the design by determining the relationship between dependent and independent variables. The study finds that blast load has a more significant impact on the structure's performance than pressure.
The document discusses thin seam mining techniques such as longwall mining and room and pillar mining. It describes the challenges of thin seam mining and the need for autonomous mining systems without personnel on the working face. Longwall mining offers safety and extraction benefits but has issues with cost and production interruptions. Room and pillar uses continuous miners but managing equipment scheduling is important for efficiency. The document also discusses coal seam detection technologies like natural gamma radiation that help autonomous miners follow the seam boundary.
The document discusses different types of underground mine transportation systems. It describes belt conveyors, their components, properties of belts, idlers, tensioning arrangements and drive heads. It also discusses scraper chain conveyors, their types, parts, and advantages and disadvantages compared to belt conveyors. Finally, it introduces pipe conveyors as a modern transportation system that can handle steep inclines and curves while preventing spillage.
IRJET- Comparing the Load Pattern on Box Concrete Gridder with Consideration ...IRJET Journal
This document compares the load patterns on concrete box girders using the Indian Road Congress (IRC) code and American Association of State Highway and Transportation Officials (AASHTO) code. It models box girder bridges with varying spans from 10-50 meters in a structural analysis software. The analysis subjects the bridges to different vehicle load classes specified in the two codes and determines the resulting shear forces and bending moments. It finds that for 2-lane bridges, the IRC LM-1 load class produces the maximum shear force and AASHTO HL-93 produces the maximum bending moment. For 4-lane bridges, the AASHTO Class A load produces both the maximum shear force and bending moment.
1) The document describes improvements to the design of an engine crane, introducing a rotating mechanism using gears, an electric motor, and bearings to aid productivity, safety, and efficiency.
2) Calculations are shown for the gear design and specifications, shaft design, base plate load capacity, and bolt design to withstand the loads from lifting engines.
3) The new design uses bevel gears with a pitch diameter of 100mm and 600mm made of steel with an endurance strength of 55MN/m2. Calculations show the gear design can withstand the expected dynamic loads.
In pit crushing and conveying in surface minesSafdar Ali
This document discusses in-pit crushing and conveying systems used in surface mines. It describes how stationary, movable, and mobile in-pit crushing systems work, with material excavated from the mine pit brought to large crushers by trucks and then transported via conveyor belts to processing plants or waste dumps. In-pit crushing and conveying systems allow for material transport via more energy efficient conveyor belts instead of diesel trucks, reducing transportation costs, especially for moving large volumes of material over long distances or heights.
A Study on Application of Passive Control Techniques to RC Bridges through No...IRJET Journal
This document discusses a study on applying passive control techniques like tuned mass dampers (TMDs) to reduce vibrations in reinforced concrete (RC) bridges through nonlinear dynamic analysis. 3D models of box girder bridges with different spans were analyzed with and without TMDs using SAP2000 software. TMDs with mass ratios of 2%, 3%, and 4% were considered. Dynamic responses like natural period, base shear, displacements, and forces were compared for bridges with and without TMDs when subjected to ground motion records. Results showed that addition of TMDs decreased the natural frequency of bridges the most for the highest mass ratio of 2%, with decreases of up to 41.23% observed for different bridge
IRJET- Parametric Study of RC Deck Slab Bridge with Varying Thickness: A Conc...IRJET Journal
This document summarizes research by various authors on the parametric study and analysis of reinforced concrete deck slab bridges with varying thickness. It discusses research analyzing the behavior of T-beam bridges under different loadings and spans. The document reviews studies on integral bridges, box girder bridges, and the effects of parameters like skew angle, span length, and number of girders on bridge behavior. It identifies gaps in existing research and the need for further studies on the economic and safe design of bridges.
STRUCTURAL ANALYSIS OF BRIDGES AND PILE FOUNDATION SUBJECTED TO SEISMIC LOADSIRJET Journal
This document summarizes research on analyzing the structural performance of bridge foundations and piles subjected to seismic loads. A numerical model was developed using ANSYS software to evaluate the behavior of bridge structures and pile foundations made of different materials, including carbon fiber reinforced steel, epoxy fiber reinforced steel, and structural steel. The model subjected the structures to varying seismic loading conditions. Results showed that carbon fiber reinforced structural steel performed better than epoxy fiber reinforced steel and structural steel, with less displacement observed under seismic loads. The objectives of the research were to study the performance of different bridge pile foundation materials and bridge structures under seismic loads and vibrations. The methodology involved modeling the bridge and pile foundations in ANSYS and applying seismic loads to analyze structural
1) The document discusses continuous welded rail (CWR) structures and the interaction between railway tracks and bridges. CWR reduces impact forces in the rails, increasing lifespan and improving ride quality.
2) Key considerations for CWR include buckling from high temperatures and fracture from low temperatures. Track-bridge interaction is also analyzed under various loads like temperature, traction, braking, and train forces.
3) Design requirements specify allowable stresses and displacements. Models are created to analyze stress and displacement considering load combinations through computational methods like finite element analysis.
Parametric Study on Curved Bridges Subjected to Seismic LoadingIRJET Journal
- The document presents a study on the behavior of curved bridges subjected to seismic loading. Two bridge types - box girder bridge and I-girder bridge - are modeled with varying radius of curvature (infinite, 150m, 250m) and column skewness (0, 15, 30 degrees).
- Linear static and non-linear pushover analyses are performed on the bridge models in CSI Bridge software. Modal periods and pushover curves are obtained and compared for different models.
- The results show that increasing the radius of curvature decreases the transverse vibration period. Increased skewness and smaller radii of curvature reduce the seismic resistance of the bridges as seen from decreased strength and stiffness in the pushover
A Theoretical Study on Strata Behaviour and Ground Control in Coal MinesIRJET Journal
This document discusses strata behavior and ground control in underground coal mines. It begins with an introduction to strata movement during mining and importance of understanding strata mechanics. It then discusses various theories for predicting strata movement, including dome theory, soil mechanics theory, and dynamic rock pressure theory. It also discusses instrumentation used for monitoring strata behavior, including stress cells, load cells, and borehole extensometers. Finally, it discusses factors affecting overbreak and rock load, and concludes that monitoring strata and support behavior is important for understanding support system performance and ensuring miner safety.
1. The document discusses pipe conveyors, which are used to transport bulk materials in difficult terrain and weather conditions. They have several advantages over traditional belt conveyors.
2. It describes improvements in pipe conveyor belt design through testing and modeling to optimize belt stiffness for curves and reduce power consumption. New belt designs like Confine belts have improved stability.
3. Dynamic analysis of starting and stopping behavior is discussed. It allows optimization of conveyor control systems for safety during emergency stops or loading/unloading.
Modelling of Permanent Deformation on Flexible Pavement Using Accelerated Pav...IOSR Journals
Abstract: The two major distresses encountered on flexible pavement under Indian conditions are fracture
(cracking) and longitudinal permanent deformation (rutting) which affects the serviceability of pavement.
Accelerated Pavement Testing Facility (APTF) is a tool which is a vital link for testing and measuring full-scale
field behaviour of cracking and rutting of pavement at in-situ conditions. Recently, CSIR-Central Road
Research Institute (CRRI) in India has procured a linear Heavy Vehicle Simulator (HVS) type of APTF which is
presently being used for finding out the cracking and rutting behaviour of a flexible pavement consisting Dense
Bituminous Concrete (DBC) as wearing course and Dense Bituminous Macadam (DBM) as binder course apart
from the conventional granular layers above sub-grade.
The present paper deals with the development of a statistical model and its approach for pavement
rutting under numerous passes (bi-directional) for the layer specifications which are (i) 40 mm DBC (ii) 120
mm DBM (iii) 250 mm Wet Mix Macadam (WMM) and (iv) 300 mm Granular Sub-base (GSB) above the Subgrade,
which is an Indian Specification widely used for 30 Million Standard Axles (MSA) at 5% CBR. The
statistical model has been developed by observing / recording pavement surface profile using Laser
Profilometer (off board) for every 5,000 passes upto 50,000 passes, thereafter at every 10,000 passes upto
175,000 passes and then at every 25,000 passes upto 275,000 passes. The details of methodology adopted, load
applied, temperature and material properties have also been given in the paper.
Keywords: Flexible pavement, Rutting, Accelerated Pavement Testing Facility,Modelling,Profilometer
Similar to Innovative Engineering Design of the High-Angle Conveyor for Mining of Deep-Seated Mineral Deposits_Crimson Publishers (20)
Grindability Studies of Mineral Materials of Different MorphologyCrimsonPublishersAMMS
These studies have been carried out to compare the grinding characteristics of different morphological mineral matters. Coal, dolomite, manganese
and iron ores samples were ground using a ball mill in different grinding conditions (dry and wet) and at different critical speed (R45%, R70% and R90%)
during wet grinding. Results are compared considering the relative impact on particle size and shape. Materials were ground in a lab scale ball mill for
2hours with steel balls and size analysis of products were carried out using different size sieves (1, 0.5, 0.25, 0.15, 0.106 and 0.053mm). Microscopic
studies were carried out to know the effect of different grinding conditions on particle properties. Light, fine grain and soft dolomite shows only 8%
reduction in D80 whereas heavy, friable and hard manganese ore shows a 29% reduction in D80 for similar dry and wet grinding conditions. It was found
that light materials are less sensitive towards mill speed (R) during wet grinding. Energy calculations indicated that wet grinding is less efficient for
low density and soft materials than high density and hard materials. The relative increase in the fineness (D80) for coal, dolomite, manganese ores and
iron ores were 8.9, 6.5, 25, and 15.8%, respectively for wet and dry grinding. Variation in D/L indicates that abrasion is a prominent phenomenon in dry
grinding and chipping is more prominent in wet grinding especially for material with bedded structures.
The Physicochemical and Thermal Properties of Consciousness Energy Healing Tr...CrimsonPublishersAMMS
Silver oxide possesses antimicrobial properties and also has numerous applications in space research, chemical, and pharmaceutical industries.
It is not readily soluble in most of the solvents and highly sensitive to light. Thus, this study was executed to evaluate the impact of the Trivedi
Effect®-Consciousness Energy Healing Treatment on the physicochemical and thermal properties of silver oxide using PSA, PXRD, and DSC analytical
techniques. The test sample was divided into two parts: one part was control sample and the other part was treated sample. The control sample did not
receive Biofield Energy Treatment; whereas the treated sample received the Biofield Energy Treatment remotely by a renowned Biofield Energy Healer,
Gopal Nayak. The particle size values of the treated silver oxide powder were significantly decreased at d10, d50, d90, and D(4,3) by 9.507%, 4.957%,
3.463%, and 4.787% respectively, thus the specific surface area was significantly increased by 7.647% compared with the control sample. The peak
intensities and crystallite sizes were significantly altered from -91.53% to 26.92% and -69.76% to 8.83%, respectively; however, the average crystallite
size was significantly decreased by 35.62% in the treated sample compared with the control sample.
Modelling Calendar Time Structure for Open Pit Mining Equipment Performance C...CrimsonPublishersAMMS
The effective operating time (EOT) of the equipment in an open pit mine determines the capacity of the mine. Clearly, EOT is only a part of the total
calendar time, which also includes various down times or non-productive times, caused by different factors. Therefore, it is important to analyze the
components of calendar time. A logical prerequisite for such an analysis as well as for predicting the capacity of a projected mine is a plausible model of
calendar time structure and clear definitions of its components. We present here such a model, which is based on a comparative study of calendar time
structure models used by several mining companies. Furthermore, we discuss the proportionality of downtimes and non-productive times to the EOT.
This is fundamental for the prediction of the capacity of open-pit mines in projection, rationalization or expansion.
Kinetics Etude of the Experimental Leaching of Sphalerite Using Acidic Lixivi...CrimsonPublishersAMMS
The influence of physico-chemical parameters such as acid concentration, temperature, particle size and time of leaching on the chemical dissolution of the sphalerite ore in sulfuric acid was examined. At a temperature of 358 K by 2 mol.l-1 H2SO4, a stirring speed of 300 rpm, initial solid / liquid ratio of 10 g/L and particle size (-125 +63^m), about 99 % of zinc was extracted inside 120min. The experimental data of this leaching technique was established by way of the shrinking core model under chemically reaction controlled processes, the corresponding activation energy for the recovery of zinc Ea calculated from the Arrhenius expression to be 18.63kJ/mole.
Key Factors of Logistic Capacity of a Mining Enterprise, Management of Proces...CrimsonPublishersAMMS
The problem of assessment of logistic providing of the mining industry and production management with maximum efficiency is considered. The technique of integrated assessment of logistic capacity of the enterprise in the form of the sum of all product weight coefficient and ball values of components of system. It is proposed to be achieved through contour-integrated control of the logistical processes of the mining enterprise. The production logistics tasks included in the integrated system are formulated. A methodology for the operational management of the loading and transport complex has been developed.
Model Study of Slope Stability in Open Pit by Numerical Modeling Using the Fi...CrimsonPublishersAMMS
Model Study of Slope Stability in Open Pit by Numerical Modeling Using the Finite Element Method by Saadoun Abderrazak in Aspects in Mining & Mineral Science
Application of Macro-Synthetic-Fiber-Reinforced Sprayed Concrete for Primary ...CrimsonPublishersAMMS
Application of Macro-Synthetic-Fiber-Reinforced Sprayed Concrete for Primary Lining Support on Highway Tunnel Project in Bosnia and Herzegovina by Dipl Ing Vedad Terzic in Aspects in Mining & Mineral Science
Microbial Communities Involved in Methane Production from Coal Treated by Pot...CrimsonPublishersAMMS
Microbial Communities Involved in Methane Production from Coal Treated by Potassium Permanganate by Zaixing Huang in Aspects in Mining & Mineral Science
Mineralization of Rare Earths, Platinum and Gold in a Sedimentary Deposit, Fo...CrimsonPublishersAMMS
Mineralization of Rare Earths, Platinum and Gold in a Sedimentary Deposit, Found Using an Indirect Method of Exploration by Eleazar Salinas-Rodríguez in Aspects in Mining & Mineral Science
Critical Issues of Sustainability Associated with Quarry Activities-Crimson P...CrimsonPublishersAMMS
Critical Issues of Sustainability Associated with Quarry Activities by Nwachukwu MA*, Ojeaga K and Gilbert Chinelo in Aspects in Mining & Mineral Science
The Effect of Bed Thickness and Cooling Time on the Rate of Copper Slag Cooli...CrimsonPublishersAMMS
The Effect of Bed Thickness and Cooling Time
on the Rate of Copper Slag Cooling, Case Study:Khatoonabad Copper Smelter Plant by Esmaeil Rahimi and Neda Mohaghegh in Aspects in Mining & Mineral Science
Clay Migration in Proppant during Production in Argillaceous Unconsolidated R...CrimsonPublishersAMMS
Clay Migration in Proppant during Production in Argillaceous Unconsolidated Reservoir by Weidong Zhanga*, Xuhui Guan, Maoyong Fu and Shouqiang Zhao in Aspects in Mining & Mineral Science
The Formation of Two-Phase Periodic Structures-Crimson PublishersCrimsonPublishersAMMS
1) The document discusses the formation of two-phase periodic structures during crystallization of solutions. It presents experiments showing that in many cases, solutions decompose by spinodal decomposition rather than the typically assumed binodal decomposition.
2) Spinodal decomposition occurs when fluctuations in concentration cause the solution to separate continuously into regions of different composition throughout the entire volume simultaneously, without sharp boundaries. This differs from binodal decomposition where clusters of the new phase form and grow.
3) Experiments observing the crystallization of dye solutions provide evidence that spinodal decomposition occurs, shown by continuous changes in concentration across the entire solution volume leading to the formation of periodic compositional patterns. This challenges the assumption that solutions are always in a metastable state
To Priority the Success Factors in the Design of Progressive Die by DFSS Meth...CrimsonPublishersAMMS
To Priority the Success Factors in the Design of Progressive Die by DFSS Methodology by Mozhgan Nozari, Amir Abbas Shojaie* and Sadigh Raissi in Aspects in Mining & Mineral Science
This document provides an introduction to metals obtained from ores. It discusses how ores contain mixtures of minerals that are processed to extract industrial minerals and metals. Ores first undergo beneficiation by physical methods to separate minerals, then chemical methods to recover metals. Metals and metalloids are classified based on their chemical composition and physical properties. Major metallic minerals are discussed, including their typical compositions and common uses for metal production or other purposes like refractories. Classification schemes for important ore types like chromites and manganese ores are also presented based on their grade and suitable end uses.
Crimson Publishers-Production Scheduling in Block Caving with Consideration o...CrimsonPublishersAMMS
Production Scheduling in Block Caving with Consideration of Material Flow by Firouz Khodayari and Yashar Pourrahimian in Aspects in Mining & Mineral Science
How to Add Chatter in the odoo 17 ERP ModuleCeline George
In Odoo, the chatter is like a chat tool that helps you work together on records. You can leave notes and track things, making it easier to talk with your team and partners. Inside chatter, all communication history, activity, and changes will be displayed.
Strategies for Effective Upskilling is a presentation by Chinwendu Peace in a Your Skill Boost Masterclass organisation by the Excellence Foundation for South Sudan on 08th and 09th June 2024 from 1 PM to 3 PM on each day.
Executive Directors Chat Leveraging AI for Diversity, Equity, and InclusionTechSoup
Let’s explore the intersection of technology and equity in the final session of our DEI series. Discover how AI tools, like ChatGPT, can be used to support and enhance your nonprofit's DEI initiatives. Participants will gain insights into practical AI applications and get tips for leveraging technology to advance their DEI goals.
Main Java[All of the Base Concepts}.docxadhitya5119
This is part 1 of my Java Learning Journey. This Contains Custom methods, classes, constructors, packages, multithreading , try- catch block, finally block and more.
How to Build a Module in Odoo 17 Using the Scaffold MethodCeline George
Odoo provides an option for creating a module by using a single line command. By using this command the user can make a whole structure of a module. It is very easy for a beginner to make a module. There is no need to make each file manually. This slide will show how to create a module using the scaffold method.
Exploiting Artificial Intelligence for Empowering Researchers and Faculty, In...Dr. Vinod Kumar Kanvaria
Exploiting Artificial Intelligence for Empowering Researchers and Faculty,
International FDP on Fundamentals of Research in Social Sciences
at Integral University, Lucknow, 06.06.2024
By Dr. Vinod Kumar Kanvaria
The simplified electron and muon model, Oscillating Spacetime: The Foundation...RitikBhardwaj56
Discover the Simplified Electron and Muon Model: A New Wave-Based Approach to Understanding Particles delves into a groundbreaking theory that presents electrons and muons as rotating soliton waves within oscillating spacetime. Geared towards students, researchers, and science buffs, this book breaks down complex ideas into simple explanations. It covers topics such as electron waves, temporal dynamics, and the implications of this model on particle physics. With clear illustrations and easy-to-follow explanations, readers will gain a new outlook on the universe's fundamental nature.
A workshop hosted by the South African Journal of Science aimed at postgraduate students and early career researchers with little or no experience in writing and publishing journal articles.