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Ball Mill
The document describes a report on ball mills submitted to professors at Cairo University. It discusses the basic principles of ball mills, their components, design equations, manufacturers, and cost estimates. Ball mills are widely used in grinding materials in industries like chemical and are available in both dry and wet types. They can be batch or continuous and are efficient tools for reducing materials to fine powder.
Ball mill
The document discusses the principles and operation of a ball mill. It describes how a ball mill works by rotating a hollow cylindrical shell partially filled with balls to grind materials by impact and attrition. The grinding medium is the balls, which can be made of steel, stainless steel, or rubber. The document outlines factors that affect grinding efficiency such as feed rate, ball size and weight, and rotation speed relative to critical speed.
Ball mill grinding - Ramkrishna
The document discusses experiments conducted to improve the efficiency of a ball mill. It outlines the objectives, which were to analyze the existing grinding system, optimize factors affecting efficiency, and generate a standard operating procedure. Experimental results showed that optimizing operating speed to 25 rpm, fill level to 80.6%, media size to 75mm, and adding a grinding aid reduced grinding time from 10-11 hours to 5 hours. Using a jaw or roll crusher to pre-crush feed materials before grinding also decreased grinding time. Based on the results, it was recommended to implement these optimized parameters and use cumi media in the ball mill.
coal pulveriser
This document provides a summary of a presentation on ball and tube mills. It discusses the types of coal and reasons for pulverizing coal. It then describes the construction and operating principles of ball and tube mills, including their slow speed of rotation, steel ball grinding mechanism, and use of impact and attrition to pulverize coal. Maintenance practices for the mills are also summarized such as ball charging schedules and preventative maintenance procedures.
Ball Mill
The document discusses the ball mill, which is a type of grinder used to grind materials into fine powder. It works on the principle of impact and attrition, where balls drop from near the top of the shell as it rotates to grind materials placed inside. A ball mill consists of a hollow cylindrical shell that rotates about its axis, with balls occupying 30-50% of the volume to facilitate grinding as the shell rotates. Applications of ball mills include grinding metallic powders, carbon, coal, cement, fertilizers and other materials.
Nano Ball Milling
The document discusses the ball milling method for producing nano materials. It involves using a ball mill, which rotates around a horizontal axis partially filled with the material to be ground plus grinding media like balls. The balls crush the solid material into nano crystallites due to the gravity and kinetic forces as they rotate at high energy inside the container. Some examples given are using ball milling to produce carbon nanotubes, boron nitride nanotubes, metal oxide nano crystals like cerium oxide and zinc oxide. Ball milling of graphite can also produce nanostructured graphite for hydrogen storage applications.
Coal mill pulverizer in thermal power plants
The document discusses coal mill/pulverizers used in thermal power plants. It describes how pulverized coal is dried, ground, circulated, and classified within the mill to produce a fine powder that is then transported to the boiler burners. The main types of pulverizers discussed are ball tube mills, bowl mills, ball and race mills, and hammer mills. Key components like classifiers and grinding rolls are also explained. Condition monitoring, inspection, and test procedures help ensure the pulverizers operate efficiently to grind coal into a fine powder to fuel the boilers.
Preparation of Nanoparticles
Nanotechnology involves working with materials at the nanoscale, between 1 to 100 nanometers. There are top-down and bottom-up approaches to creating nanoparticles. Top-down involves breaking bulk materials into nanoparticles while bottom-up involves building nanoparticles from individual atoms or molecules. Nanoparticles can be created through various methods including attrition, pyrolysis, and liquid phase techniques like sol-gel and microemulsions. Nanoparticles find applications in areas like batteries and 3D printing.
Recommended
Ball Mill
The document describes a report on ball mills submitted to professors at Cairo University. It discusses the basic principles of ball mills, their components, design equations, manufacturers, and cost estimates. Ball mills are widely used in grinding materials in industries like chemical and are available in both dry and wet types. They can be batch or continuous and are efficient tools for reducing materials to fine powder.
Ball mill
The document discusses the principles and operation of a ball mill. It describes how a ball mill works by rotating a hollow cylindrical shell partially filled with balls to grind materials by impact and attrition. The grinding medium is the balls, which can be made of steel, stainless steel, or rubber. The document outlines factors that affect grinding efficiency such as feed rate, ball size and weight, and rotation speed relative to critical speed.
Ball mill grinding - Ramkrishna
The document discusses experiments conducted to improve the efficiency of a ball mill. It outlines the objectives, which were to analyze the existing grinding system, optimize factors affecting efficiency, and generate a standard operating procedure. Experimental results showed that optimizing operating speed to 25 rpm, fill level to 80.6%, media size to 75mm, and adding a grinding aid reduced grinding time from 10-11 hours to 5 hours. Using a jaw or roll crusher to pre-crush feed materials before grinding also decreased grinding time. Based on the results, it was recommended to implement these optimized parameters and use cumi media in the ball mill.
coal pulveriser
This document provides a summary of a presentation on ball and tube mills. It discusses the types of coal and reasons for pulverizing coal. It then describes the construction and operating principles of ball and tube mills, including their slow speed of rotation, steel ball grinding mechanism, and use of impact and attrition to pulverize coal. Maintenance practices for the mills are also summarized such as ball charging schedules and preventative maintenance procedures.
Ball Mill
The document discusses the ball mill, which is a type of grinder used to grind materials into fine powder. It works on the principle of impact and attrition, where balls drop from near the top of the shell as it rotates to grind materials placed inside. A ball mill consists of a hollow cylindrical shell that rotates about its axis, with balls occupying 30-50% of the volume to facilitate grinding as the shell rotates. Applications of ball mills include grinding metallic powders, carbon, coal, cement, fertilizers and other materials.
Nano Ball Milling
The document discusses the ball milling method for producing nano materials. It involves using a ball mill, which rotates around a horizontal axis partially filled with the material to be ground plus grinding media like balls. The balls crush the solid material into nano crystallites due to the gravity and kinetic forces as they rotate at high energy inside the container. Some examples given are using ball milling to produce carbon nanotubes, boron nitride nanotubes, metal oxide nano crystals like cerium oxide and zinc oxide. Ball milling of graphite can also produce nanostructured graphite for hydrogen storage applications.
Coal mill pulverizer in thermal power plants
The document discusses coal mill/pulverizers used in thermal power plants. It describes how pulverized coal is dried, ground, circulated, and classified within the mill to produce a fine powder that is then transported to the boiler burners. The main types of pulverizers discussed are ball tube mills, bowl mills, ball and race mills, and hammer mills. Key components like classifiers and grinding rolls are also explained. Condition monitoring, inspection, and test procedures help ensure the pulverizers operate efficiently to grind coal into a fine powder to fuel the boilers.
Preparation of Nanoparticles
Nanotechnology involves working with materials at the nanoscale, between 1 to 100 nanometers. There are top-down and bottom-up approaches to creating nanoparticles. Top-down involves breaking bulk materials into nanoparticles while bottom-up involves building nanoparticles from individual atoms or molecules. Nanoparticles can be created through various methods including attrition, pyrolysis, and liquid phase techniques like sol-gel and microemulsions. Nanoparticles find applications in areas like batteries and 3D printing.
Cement plant lubrication
The document provides an overview of lubrication at cement plants, breaking it down into 5 segments: mines, limestone processing, calcining, clinker grinding, and captive power plants (CPPs). It describes the typical equipment used in each segment, such as dump trucks and excavators in mines, crushers and ball mills in processing, rotary kilns and girth gears in calcining. The key lubricants used include hydraulic oils, greases, engine oils, and specialty greases. CPPs that run on diesel are noted to have the highest lubricant consumption of around 10,000 liters per month during peak seasons. The objective is to highlight typical equipment and lubricants without recommending specific brands.
Principle of operation bowl mill
The bowl mill uses a motor and gear system to rotate a bowl at 40-65 rpm, grinding coal into a fine powder. Hot air enters to dry the coal while heavier debris falls out of the bowl. A grinding roller assembly applies pressure and can be adjusted, while vanes inside separate finer particles from coarser ones that are returned for further grinding. Discharge valves on top can isolate the mill from the boiler for maintenance.
Mill Lubrication System
The document discusses the hydraulic lubrication system of a SAG mill. It provides definitions and discusses the importance of lubrication in reducing friction and wear between moving parts. It describes the various components of the lubrication system including the motor, gearbox, trunnion bearings and pinion bearings. It also summarizes data collected from the lubrication system from April 9-12, 2013 including temperatures, pressures, and oil flows. The document concludes with recommendations to improve the oil storage room and lubrication system room such as widening the areas, improving cleanliness, drainage, and enclosing rooms.
Timken bearing fundamentals
The document provides an overview of bearing fundamentals training for the rolling mill industry. It discusses different bearing types including tapered roller bearings, their components and features. It also covers topics like bearing metallurgy and fatigue, lubrication, fitting practices, and a comparison of bearing types for different load capabilities.
Sol-Gel Method
The sol-gel method involves creating an inorganic network through the formation and gelation of a colloidal suspension. Metal alkoxides and chlorides react with water through hydrolysis and polycondensation reactions to form this network. The sol-gel process is used to create protective coatings, thin films, fibers, and nano-scale powders for opto-mechanical applications and offers advantages over conventional glass production like low temperature operation and better control over material properties at the nano-scale.
nanoparticles
The document discusses targeted drug delivery using nanoparticles. It describes various methods for preparing nanoparticles, including cross-linking of polymers, emulsion polymerization, and solvent evaporation. Nanoparticles can be engineered using these methods to encapsulate drugs and release them in a targeted manner in the body.
Nanoparticle
This document discusses nanotechnology and nanoparticles in pharmacy. It begins by defining nanotechnology as manipulating matter at the atomic scale between 1-1000 nm. In pharmacy, nanoparticles are used to synthesize, characterize, and screen particles at the nano range. The document then discusses various methods of nanoparticle preparation including emulsion polymerization, dispersion polymerization, and interfacial polymerization. It covers advantages and applications of nanoparticles in targeted drug delivery and concludes by discussing pharmaceutical aspects such as purification, freeze drying, and sterilization of nanoparticles.
Synthesis of Nano Materials
This document discusses various methods for synthesizing nanomaterials, including top-down and bottom-up approaches. The top-down approach involves breaking down bulk materials into nanoparticles, using methods like attrition and lithography. The bottom-up approach involves building nanoparticles from molecular precursors using methods like pyrolysis, solvothermal processes, and sol-gel techniques. These synthetic methods allow for the production of nanomaterials with applications in areas like drug delivery, coatings, and imaging. Further development could improve biological imaging and cancer treatment.
Presentation On Nanoparticles
The document summarizes a presentation on developing paclitaxel nanoparticles using human serum albumin (HSA) as a polymer. Paclitaxel is insoluble in water and has low bioavailability. Nanoparticles can increase paclitaxel's stability, target delivery to tumor sites, and reduce toxicity. The method involves dissolving paclitaxel in chloroform and mixing it with an HSA solution to form an emulsion. The chloroform is then evaporated to form paclitaxel-loaded HSA nanoparticles.
Bearings, their types and application
Bearing, types of loads on bearings (Radial and Thrust), types of bearings, Ball Bearing, Roller Bearing, Ball Thrust Bearing, Roller Thrust Bearing, Tapered Roller Bearing, Specialized Bearings (Magnetic & Giant Bearings)
Synthesis of nanoparticles- physical,chemical and biological
This document discusses various methods for synthesizing nanoparticles, including physical, chemical, and biological approaches. Physical methods include ball milling, melt mixing, physical vapor deposition techniques like sputtering and laser ablation. Chemical methods involve reducing metal salts or using sol-gel processes. Biological methods use microorganisms, plant extracts, proteins like ferritin, or biomolecular templates to synthesize nanoparticles. The document compares top-down lithography approaches to bottom-up assembly and provides many examples of synthesizing specific nanomaterials.
Nanoparticles powerpoint
Nano particles are extremely small particles that are now being used in many products including sunscreen. There is ongoing research about whether nano particles in sunscreen are safe. While nano particles help sunscreen go on clear rather than white, some studies show they may penetrate the skin and cause harm. Alternative natural nano particles from ivy are being researched as potentially safer options. Overall, the risks of nano particles in sunscreen are still being evaluated.
SERVICES final-1 jgk (1)
Pulveriser Tech Services provides technical services related to coal pulverizers used in thermal power stations. They specialize in renovation and modernization of bowl mills and ball tube mills to improve performance and availability. Their team of experts have decades of experience in pulverizer design, maintenance, troubleshooting, and performance evaluation from their careers at BHEL. They also provide field support services and have business tie ups with other companies for parts supply and maintenance contracts.
Change H.S.S Bearings of Combfilex Gear box Cement Mill 3 (Modified)
1. The bearings of the high speed shaft (HSS) in Combfilex Gear Box Cement Mill 3 were showing problems based on vibration analysis in 2014. The supplier Flender recommended changing just the HSS bearings.
2. From March 11-15, 2015 the job was carried out to change the 3 bearings of the HSS according to Flender's recommendations. Inspections and measurements were made before and after.
3. Vibration monitoring will continue during normal operation to check the condition, with analysis from Siemens who measured 4 gearboxes.
Report about the repairation of the Raw mill Slide Ring and shell (Modificat...
This document summarizes the repair of cracks and wears in the raw mill tire and shell at MBCC. It describes discovering cracks and grooves in the tire and outlet slide ring during an inspection. Recommendations were provided to repair the cracks and reline worn areas. An offer was made by Castolin Egypt to provide welding, consumables, and technical supervision for the repair work. The scopes of work for both MBCC and Castolin Egypt are outlined.
Sin Khai Wen FYP Viva Presentation
This document summarizes a final year project on depositing CdSe nanoparticles multilayers using chemical bath deposition. It introduces CdSe and its properties, the chemical bath deposition technique, and how it was used to deposit different sized CdSe nanoparticles by varying the concentration of the complexing agent NTA. Characterization of the deposited nanoparticles found smaller sizes were produced with higher NTA concentrations. Attempts to deposit two CdSe layers of different sizes on a substrate did not improve solar cell efficiency compared to a single layer. Further work is recommended to address Ostwald ripening in the deposition solution.
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Cement plant lubrication
The document provides an overview of lubrication at cement plants, breaking it down into 5 segments: mines, limestone processing, calcining, clinker grinding, and captive power plants (CPPs). It describes the typical equipment used in each segment, such as dump trucks and excavators in mines, crushers and ball mills in processing, rotary kilns and girth gears in calcining. The key lubricants used include hydraulic oils, greases, engine oils, and specialty greases. CPPs that run on diesel are noted to have the highest lubricant consumption of around 10,000 liters per month during peak seasons. The objective is to highlight typical equipment and lubricants without recommending specific brands.
Principle of operation bowl mill
The bowl mill uses a motor and gear system to rotate a bowl at 40-65 rpm, grinding coal into a fine powder. Hot air enters to dry the coal while heavier debris falls out of the bowl. A grinding roller assembly applies pressure and can be adjusted, while vanes inside separate finer particles from coarser ones that are returned for further grinding. Discharge valves on top can isolate the mill from the boiler for maintenance.
Mill Lubrication System
The document discusses the hydraulic lubrication system of a SAG mill. It provides definitions and discusses the importance of lubrication in reducing friction and wear between moving parts. It describes the various components of the lubrication system including the motor, gearbox, trunnion bearings and pinion bearings. It also summarizes data collected from the lubrication system from April 9-12, 2013 including temperatures, pressures, and oil flows. The document concludes with recommendations to improve the oil storage room and lubrication system room such as widening the areas, improving cleanliness, drainage, and enclosing rooms.
Timken bearing fundamentals
The document provides an overview of bearing fundamentals training for the rolling mill industry. It discusses different bearing types including tapered roller bearings, their components and features. It also covers topics like bearing metallurgy and fatigue, lubrication, fitting practices, and a comparison of bearing types for different load capabilities.
Sol-Gel Method
The sol-gel method involves creating an inorganic network through the formation and gelation of a colloidal suspension. Metal alkoxides and chlorides react with water through hydrolysis and polycondensation reactions to form this network. The sol-gel process is used to create protective coatings, thin films, fibers, and nano-scale powders for opto-mechanical applications and offers advantages over conventional glass production like low temperature operation and better control over material properties at the nano-scale.
nanoparticles
The document discusses targeted drug delivery using nanoparticles. It describes various methods for preparing nanoparticles, including cross-linking of polymers, emulsion polymerization, and solvent evaporation. Nanoparticles can be engineered using these methods to encapsulate drugs and release them in a targeted manner in the body.
Nanoparticle
This document discusses nanotechnology and nanoparticles in pharmacy. It begins by defining nanotechnology as manipulating matter at the atomic scale between 1-1000 nm. In pharmacy, nanoparticles are used to synthesize, characterize, and screen particles at the nano range. The document then discusses various methods of nanoparticle preparation including emulsion polymerization, dispersion polymerization, and interfacial polymerization. It covers advantages and applications of nanoparticles in targeted drug delivery and concludes by discussing pharmaceutical aspects such as purification, freeze drying, and sterilization of nanoparticles.
Synthesis of Nano Materials
This document discusses various methods for synthesizing nanomaterials, including top-down and bottom-up approaches. The top-down approach involves breaking down bulk materials into nanoparticles, using methods like attrition and lithography. The bottom-up approach involves building nanoparticles from molecular precursors using methods like pyrolysis, solvothermal processes, and sol-gel techniques. These synthetic methods allow for the production of nanomaterials with applications in areas like drug delivery, coatings, and imaging. Further development could improve biological imaging and cancer treatment.
Presentation On Nanoparticles
The document summarizes a presentation on developing paclitaxel nanoparticles using human serum albumin (HSA) as a polymer. Paclitaxel is insoluble in water and has low bioavailability. Nanoparticles can increase paclitaxel's stability, target delivery to tumor sites, and reduce toxicity. The method involves dissolving paclitaxel in chloroform and mixing it with an HSA solution to form an emulsion. The chloroform is then evaporated to form paclitaxel-loaded HSA nanoparticles.
Bearings, their types and application
Bearing, types of loads on bearings (Radial and Thrust), types of bearings, Ball Bearing, Roller Bearing, Ball Thrust Bearing, Roller Thrust Bearing, Tapered Roller Bearing, Specialized Bearings (Magnetic & Giant Bearings)
Synthesis of nanoparticles- physical,chemical and biological
This document discusses various methods for synthesizing nanoparticles, including physical, chemical, and biological approaches. Physical methods include ball milling, melt mixing, physical vapor deposition techniques like sputtering and laser ablation. Chemical methods involve reducing metal salts or using sol-gel processes. Biological methods use microorganisms, plant extracts, proteins like ferritin, or biomolecular templates to synthesize nanoparticles. The document compares top-down lithography approaches to bottom-up assembly and provides many examples of synthesizing specific nanomaterials.
Nanoparticles powerpoint
Nano particles are extremely small particles that are now being used in many products including sunscreen. There is ongoing research about whether nano particles in sunscreen are safe. While nano particles help sunscreen go on clear rather than white, some studies show they may penetrate the skin and cause harm. Alternative natural nano particles from ivy are being researched as potentially safer options. Overall, the risks of nano particles in sunscreen are still being evaluated.
SERVICES final-1 jgk (1)
Pulveriser Tech Services provides technical services related to coal pulverizers used in thermal power stations. They specialize in renovation and modernization of bowl mills and ball tube mills to improve performance and availability. Their team of experts have decades of experience in pulverizer design, maintenance, troubleshooting, and performance evaluation from their careers at BHEL. They also provide field support services and have business tie ups with other companies for parts supply and maintenance contracts.
Change H.S.S Bearings of Combfilex Gear box Cement Mill 3 (Modified)
1. The bearings of the high speed shaft (HSS) in Combfilex Gear Box Cement Mill 3 were showing problems based on vibration analysis in 2014. The supplier Flender recommended changing just the HSS bearings.
2. From March 11-15, 2015 the job was carried out to change the 3 bearings of the HSS according to Flender's recommendations. Inspections and measurements were made before and after.
3. Vibration monitoring will continue during normal operation to check the condition, with analysis from Siemens who measured 4 gearboxes.
Report about the repairation of the Raw mill Slide Ring and shell (Modificat...
This document summarizes the repair of cracks and wears in the raw mill tire and shell at MBCC. It describes discovering cracks and grooves in the tire and outlet slide ring during an inspection. Recommendations were provided to repair the cracks and reline worn areas. An offer was made by Castolin Egypt to provide welding, consumables, and technical supervision for the repair work. The scopes of work for both MBCC and Castolin Egypt are outlined.
Sin Khai Wen FYP Viva Presentation
This document summarizes a final year project on depositing CdSe nanoparticles multilayers using chemical bath deposition. It introduces CdSe and its properties, the chemical bath deposition technique, and how it was used to deposit different sized CdSe nanoparticles by varying the concentration of the complexing agent NTA. Characterization of the deposited nanoparticles found smaller sizes were produced with higher NTA concentrations. Attempts to deposit two CdSe layers of different sizes on a substrate did not improve solar cell efficiency compared to a single layer. Further work is recommended to address Ostwald ripening in the deposition solution.
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Synthesis of nanoparticles- physical,chemical and biological
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Change H.S.S Bearings of Combfilex Gear box Cement Mill 3 (Modified)
Change H.S.S Bearings of Combfilex Gear box Cement Mill 3 (Modified)
Report about the repairation of the Raw mill Slide Ring and shell (Modificat...
Report about the repairation of the Raw mill Slide Ring and shell (Modificat...
Ball mill
- 1. • BALL MILL • A PROJECT BY:- • RAHIL SHAH-1402026 • SHAIVIL TRIVEDI-1402043 • NILAY ADHIYA- • HARSH PATEL- • PRASHANT -