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- Last Update: February 19, 2023
- Joined: June 8, 2020
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February 19, 2023Calcination of calcium carbonate to produce barite is the traditional production process, with the development of science, the production of barite used mechanized, semi-mechanized shaft kiln and rotary kiln, fluidized bed furnace and other... moreCalcination of calcium carbonate to produce barite is the traditional production process, with the development of science, the production of barite used mechanized, semi-mechanized shaft kiln and rotary kiln, fluidized bed furnace and other equipment.
Calcination time is correspondingly reduced, lime rotary kiln production only need 2 to 4 hours. Compared with kiln production,it can improve production efficiency more than 5 times. In recent years, the use of ultrafine mill for processing barite improve the utilization value and scope of barite.
The use of barite grinding mill processing flow as follows: the raw barite calcined by calcination equipment such as rotary kiln, the processed lime change into calcium oxide. Then the calcium into the mill’s host through the screw conveyor, under the joint action of the multilayer grinding rings and multiple rollers,it become fine barite powder. Barite powder are transported to storage silos under the action of wind, after removal equipment processing... less - February 15, 2023Compared with traditional clay solid and hollow bricks, gypsum board has excellent properties such as light weight, high strength, thermal insulation, fire and sound insulation, convenient construction, and space saving.
At present, it has been widely... moreCompared with traditional clay solid and hollow bricks, gypsum board has excellent properties such as light weight, high strength, thermal insulation, fire and sound insulation, convenient construction, and space saving.
At present, it has been widely used in internal partitions, wall cladding panels (instead of wall plastering), ceilings, sound-absorbing boards, ground base plates, and various decorative panels of various buildings such as office buildings, stores, hotels, industrial plants, and residential buildings.
In recent years, with the continuous investment and construction of gypsum industry projects, the production capacity of gypsum board has been expanding. According to statistics, by the end of 2021, the production capacity of gypsum board industry was 4.9 billion square meters, an increase of 120 million square meters compared with 2020.
With the continuous expansion of production capacity, the output of gypsum board keeps growing. According to the data, the output of gypsum board in... less - February 8, 2023The upstream of gypsum industry chain mainly includes raw materials and fuel power required in production and processing, including natural gypsum and industrial by-product gypsum (phosphogypsum, desulfurized gypsum, etc.); The middle reaches are the... moreThe upstream of gypsum industry chain mainly includes raw materials and fuel power required in production and processing, including natural gypsum and industrial by-product gypsum (phosphogypsum, desulfurized gypsum, etc.); The middle reaches are the production, processing and manufacturing of gypsum products; Downstream mainly includes construction industry, chemical industry (cement), agriculture, pharmaceutical industry and other application industries.
The upstream of gypsum is mainly raw materials and fuel power required in production and processing, mainly including natural gypsum and industrial by-product gypsum (phosphogypsum, desulfurization gypsum, etc.).
At present, because the distribution of natural gypsum is too centralized, the proportion of high-quality resources is relatively low, and the mining is not standardized, it is easy to damage the environment and cause safety accidents, and the industrial by-product gypsum is piled up in large quantities, so phosphogypsum and desulfurized... less - February 6, 2023We aiming at the character of mica powder and improved the configuration of grinding mill, which will largely increase the efficiency. At the same time, the new equipment has better environmental performance and is suitable for modern the production... moreWe aiming at the character of mica powder and improved the configuration of grinding mill, which will largely increase the efficiency. At the same time, the new equipment has better environmental performance and is suitable for modern the production process of mica powder.
Mica is the major solid waste of coal-fired power plants. Every year, the large sum or mica may cause environment pollution and resource waste.
However, mica can be applied as the mixed material of cement processing. The functions are improving capacity, energy saving, cost reducing, and can improve product performance.
The capacity of cement will rise for 10-15% if added with mica, and will rise for 20-30% if added mica and slag. It will also increase corrosion stability.
When producing mica powder, it can take the method of jointly grinding or separately grinding. The feeding mica fineness should be around 0.08mm (200 mesh), much smaller than other material.
Jointly grinding is to send the raw material, gypsum and mica into the... less - January 30, 2023Currently, the world is very rich in gypsum reserves reach to 150 million tons, the annual extraction of 1.30 million tons. China is a long history country rich in gypsum deposits, ink ore reserves accounted for 75% of the world's total reserves, which... moreCurrently, the world is very rich in gypsum reserves reach to 150 million tons, the annual extraction of 1.30 million tons. China is a long history country rich in gypsum deposits, ink ore reserves accounted for 75% of the world's total reserves, which crystalline gypsum reserves 52.8 million tons, aphanitic gypsum reserves of 23.71 million tons, abundant gypsum reserves resources accumulated a solid foundation for the development and application of gypsum, gypsum has also been widely expanded in the field of pharmacy applications.
Excellent characteristics of gypsum, making it widely used in the metallurgical, chemical, petrochemical, high-energy physics, aerospace, electronics and other industries. Gypsum can be used as refractory materials, such as refractory bricks, crucibles, continuous casting powder, mold core and high-temperature materials; Mixture which mixed with other impurities can be used for steelmaking; Can be used as an electrode, brushes, carbon rod, carbon tube in electrical... less - November 21, 2022Kaolin is a kind of clay and clay rock mainly composed of kaolinite group clay minerals. Kaolin is white, fine and soft, with good plasticity, fire resistance and other physical and chemical properties. It is also an important non-metallic mineral, which... moreKaolin is a kind of clay and clay rock mainly composed of kaolinite group clay minerals. Kaolin is white, fine and soft, with good plasticity, fire resistance and other physical and chemical properties. It is also an important non-metallic mineral, which is called the four major non-metallic minerals together with mica, quartz and calcium carbonate, and is widely used.
Kaolin is mainly used in paper making, ceramics and refractory materials, followed by coating, rubber filler, enamel glaze and white cement raw materials, and a small amount is used in plastics, grinding wheels, daily cosmetics, medicine, textiles, petroleum, chemical industry, building materials, national defense and other industrial sectors. With the rapid development of modern science and technology, some high-tech fields began to use a large amount of kaolin as a new material, as well as high temperature resistant porcelain parts of atomic reactors, space shuttles and spaceships, also made of kaolin.
The continued popularity of the... less - September 13, 2022If a soft material is added between the cover plate and the main body, under the action of the pressing force, the sealing material will be deformed, filling the wet groove, reducing the air leakage gap, and then playing a sealing role. in addition to... moreIf a soft material is added between the cover plate and the main body, under the action of the pressing force, the sealing material will be deformed, filling the wet groove, reducing the air leakage gap, and then playing a sealing role. in addition to the mechanical pressing force, the force generated by the static pressure difference acting on the cover plate uniformly acts on the cover plate.
when the direction of the force is the same as the pressing direction, it becomes the pressing force, and when it is opposite, it becomes the loosening force. the cover air tightness effect plays the opposite role. therefore, setting the closing direction of the cover plate correctly and making full use of the pressure difference existing in the system to positively press the cover plate can achieve a good leakage prevention effect.
The selection of dust removal bag is very important, it directly affects the dust removal effect of ultrafine vertical mill. the selection of dust removal bag is selected from the... less - September 8, 2022For the back-flushing bag-type ultrafine vertical mill, after the bag room is cleaned, the pressure loss can only be reduced to 20-80% of that before cleaning because there is still a layer of adhering dust. when the cleaning is not complete, the... moreFor the back-flushing bag-type ultrafine vertical mill, after the bag room is cleaned, the pressure loss can only be reduced to 20-80% of that before cleaning because there is still a layer of adhering dust. when the cleaning is not complete, the adhesion layer is speckled. if the work is continued, the pressure loss will rise sharply. this shows that the pressure loss of the filter bag has decreased, which does not mean that the dust is completely cleaned.For multi-chamber bag-type ultrafine vertical mills, the method of off-line cleaning by separate chambers is often used. at this time, although the actual total filtration area of the ultrafine vertical mill is reduced, the pressure loss will increase slightly. when the cleaning is finished and the work is resumed, because the impedance of the bag chamber for cleaning has dropped and the air volume passing through it has increased, the total air volume of the reverse-blow bag ultrafine vertical mill will increase after cleaning, compared with... less
- September 6, 20221. The grinding efficiency is high. The vertical roller mill of the SBM vertical roller mill adopts large-diameter double-row spherical roller bearings, which makes the equipment run faster, reduces the power consumption of startup, and the rotating... more1. The grinding efficiency is high. The vertical roller mill of the SBM vertical roller mill adopts large-diameter double-row spherical roller bearings, which makes the equipment run faster, reduces the power consumption of startup, and the rotating device is also simplified. Delicate and able to meet customer needs.
2. The output can reach 615 tons per hour, and the phenomenon of calcium stone blocking the feeding port will not occur during the grinding process, which improves the grinding capacity and output of the equipment.
3. The output range of vertical roller mill is still very large, the output of small equipment is 0.65 tons per hour, and the output of large equipment is 615 tons. Equipment with different output not only differs in the amount of raw materials used, but also the structure design of large equipment is more complicated, so their prices There is definitely a big difference, and different manufacturers have different cost inputs and different pricing. We need to compare and... less - August 29, 2022Too much or too little bearing oil, oil pollution or oil quality is not in line with the lubricating system can ensure the normal operation of the ultrafine mill bearing, prevent foreign matter intrusion and sealing effect, but also eliminate friction... moreToo much or too little bearing oil, oil pollution or oil quality is not in line with the lubricating system can ensure the normal operation of the ultrafine mill bearing, prevent foreign matter intrusion and sealing effect, but also eliminate friction heat, reduce friction and wear, and prevent the bearing from overheating Therefore, during production, be sure to ensure the amount and quality of ultrafine mill bearing grease.
Solution: It is necessary to regularly add oil to the bearing box according to the requirements of equipment use to avoid too much or too little oil. If there is a problem with the oil quality, it is necessary to clean, replace the oil and seal in time.
After long-term operation, some parts of the ultrafine mill may be severely worn or even broken. Common wear and tear parts include spring springs, bearings, pipe beams, beams and screen frames. The spring should be an important part of the ultrafine mill for shock absorption and noise reduction.
If the spring is worn or... less - August 26, 2022First, pay attention to the pre-tightening degree of special screws under the condition that the screw is well lubricated and has no rubber damage.
The rubber is glued to the back of the gate. It is necessary to ensure that the rubber is firmly bonded... moreFirst, pay attention to the pre-tightening degree of special screws under the condition that the screw is well lubricated and has no rubber damage.
The rubber is glued to the back of the gate. It is necessary to ensure that the rubber is firmly bonded and the surface is flat. Install the gate when it is fully dry. The special screws are designed according to the selection and structural dimensions.
After pre-tightening, the natural pre-tightening force between the gate and the U-shaped plate of the tank body should meet the design requirements, and no adjustment should be made unless there are special circumstances, otherwise the pre-tightening is too loose or excessive.
Tightening may lead to running water, and the lifting is not smooth. The above are the common mechanical failures of mechanical kaolin milling equipments. In actual production, attention should be paid to the maintenance and maintenance awareness of the kaolin milling equipment. less - August 24, 2022Troubleshooting and troubleshooting: First of all, when the grinding mill is installed for the first time, the foreign objects in the tank should be removed first, and the large pulley should be turned to confirm whether it rotates flexibly and whether... moreTroubleshooting and troubleshooting: First of all, when the grinding mill is installed for the first time, the foreign objects in the tank should be removed first, and the large pulley should be turned to confirm whether it rotates flexibly and whether the belt is properly tight.
Start the inspection to confirm that the belt is running in the correct direction (the correct direction is clockwise when looking down). Make sure that the belt is free of scratches, and then officially start. If the above problems occur during the operation of the grinding mill, the belt should be removed, and the stirring parts should be disconnected for separate investigation.
The routine inspection part is the motor, the verticality of the motor shaft should be checked, the structure between the motor and the plate, the plate and the bracket is in good condition, the motor can be tested separately for wiring, and the small pulley can be visually checked to see if the operation is stable.
Influenced by factors such... less - August 23, 2022When the feeding is stopped, grinding aids (such as dry coal and quicklime) can be added to the cylinder. After the grinding sound of the ultrafine vertical mill returns to normal, first feed a small amount of material, and then gradually increase the... moreWhen the feeding is stopped, grinding aids (such as dry coal and quicklime) can be added to the cylinder. After the grinding sound of the ultrafine vertical mill returns to normal, first feed a small amount of material, and then gradually increase the feeding amount until it is normal.
Always observe whether the current of the main motor of the ultrafine vertical mill increases. If the current increases, it means that the "full grinding" phenomenon of the ultrafine vertical mill has been eliminated, and the feeding amount can be gradually increased.
Stop the machine to check the compartment board and grate board. If the above methods do not work, the method of stopping and grinding can be adopted. Empty all the steel balls and materials in the barrel of the ultrafine vertical mill, and at the same time clean the attached materials on the liner and steel balls, then reload the balls and start the operation. less - August 22, 2022In the entire beneficiation process, the investment in grinding equipment can account for more than 50%. Therefore, care should be taken in the selection and operation process. When purchasing grinding equipment, many users will ask the manufacturer... moreIn the entire beneficiation process, the investment in grinding equipment can account for more than 50%. Therefore, care should be taken in the selection and operation process. When purchasing grinding equipment, many users will ask the manufacturer about the output of grinding equipment.
Normally, the output of each vertical roller mill will be maintained within a certain range. If the output of the vertical roller mill suddenly drops, it is likely to be due to the problem of "full grinding", commonly known as "full grinding" or "boring grinding". Literally, "full grinding" means that there is too much material in the barrel of the grinding equipment in a short period of time, which cannot be removed in time, resulting in the loss of balance between the input and output.
So how to judge whether the vertical roller mill is "full grinding"? What causes the "full grinding" problem of the vertical roller mill? And how do we solve the "full grinding" problem of the vertical roller mill?
How to judge... less - August 21, 2022Staff need to clean every shift and once a week;All platforms should be cleaned in time, and there should be no dust accumulation. In order to ensure the normal operation of the ultrafine vertical mill and maintain the normal working efficiency of... moreStaff need to clean every shift and once a week;All platforms should be cleaned in time, and there should be no dust accumulation. In order to ensure the normal operation of the ultrafine vertical mill and maintain the normal working efficiency of the ultrafine vertical mill, the daily maintenance of the ultrafine vertical mill is essential.
At present, most of the processing plants in my country separate maintenance and daily operations. The maintenance personnel are responsible for repairs, and the operating personnel are responsible for driving. Only a small number of processing plants have "combined transportation and inspection".
For example, each mineral processing project of SBM is in the stage of worker training. The workers will be trained in detail, and the actual operation and maintenance site will be simulated to improve the proficiency of the workers and ensure the normal operation of the daily maintenance and maintenance of the processing plant. less
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Calcination of calcium carbonate to produce barite is the... moreCalcination of calcium carbonate to produce barite is the traditional production process, with the development of science, the production of barite used mechanized, semi-mechanized shaft kiln and rotary kiln, fluidized bed furnace and other equipment.
Calcination time is correspondingly reduced, lime rotary kiln production only need 2 to 4 hours. Compared with kiln production,it can improve production efficiency more than 5 times. In recent years, the use of ultrafine mill for processing barite improve the utilization value and scope of barite.
The use of barite grinding mill processing flow as follows: the raw barite calcined by calcination equipment such as rotary kiln, the processed lime change into calcium oxide. Then the calcium into the mill’s host through the screw conveyor, under the joint action of the multilayer grinding rings and multiple rollers,it become fine barite powder. Barite powder are transported to storage silos under the action of wind, after removal equipment processing... less -
Compared with traditional clay solid and hollow bricks, gypsum... moreCompared with traditional clay solid and hollow bricks, gypsum board has excellent properties such as light weight, high strength, thermal insulation, fire and sound insulation, convenient construction, and space saving.
At present, it has been widely used in internal partitions, wall cladding panels (instead of wall plastering), ceilings, sound-absorbing boards, ground base plates, and various decorative panels of various buildings such as office buildings, stores, hotels, industrial plants, and residential buildings.
In recent years, with the continuous investment and construction of gypsum industry projects, the production capacity of gypsum board has been expanding. According to statistics, by the end of 2021, the production capacity of gypsum board industry was 4.9 billion square meters, an increase of 120 million square meters compared with 2020.
With the continuous expansion of production capacity, the output of gypsum board keeps growing. According to the data, the output of gypsum board in... less -
The upstream of gypsum industry chain mainly includes raw... moreThe upstream of gypsum industry chain mainly includes raw materials and fuel power required in production and processing, including natural gypsum and industrial by-product gypsum (phosphogypsum, desulfurized gypsum, etc.); The middle reaches are the production, processing and manufacturing of gypsum products; Downstream mainly includes construction industry, chemical industry (cement), agriculture, pharmaceutical industry and other application industries.
The upstream of gypsum is mainly raw materials and fuel power required in production and processing, mainly including natural gypsum and industrial by-product gypsum (phosphogypsum, desulfurization gypsum, etc.).
At present, because the distribution of natural gypsum is too centralized, the proportion of high-quality resources is relatively low, and the mining is not standardized, it is easy to damage the environment and cause safety accidents, and the industrial by-product gypsum is piled up in large quantities, so phosphogypsum and desulfurized... less -
We aiming at the character of mica powder and improved the... moreWe aiming at the character of mica powder and improved the configuration of grinding mill, which will largely increase the efficiency. At the same time, the new equipment has better environmental performance and is suitable for modern the production process of mica powder.
Mica is the major solid waste of coal-fired power plants. Every year, the large sum or mica may cause environment pollution and resource waste.
However, mica can be applied as the mixed material of cement processing. The functions are improving capacity, energy saving, cost reducing, and can improve product performance.
The capacity of cement will rise for 10-15% if added with mica, and will rise for 20-30% if added mica and slag. It will also increase corrosion stability.
When producing mica powder, it can take the method of jointly grinding or separately grinding. The feeding mica fineness should be around 0.08mm (200 mesh), much smaller than other material.
Jointly grinding is to send the raw material, gypsum and mica into the... less -
Currently, the world is very rich in gypsum reserves reach to... moreCurrently, the world is very rich in gypsum reserves reach to 150 million tons, the annual extraction of 1.30 million tons. China is a long history country rich in gypsum deposits, ink ore reserves accounted for 75% of the world's total reserves, which crystalline gypsum reserves 52.8 million tons, aphanitic gypsum reserves of 23.71 million tons, abundant gypsum reserves resources accumulated a solid foundation for the development and application of gypsum, gypsum has also been widely expanded in the field of pharmacy applications.
Excellent characteristics of gypsum, making it widely used in the metallurgical, chemical, petrochemical, high-energy physics, aerospace, electronics and other industries. Gypsum can be used as refractory materials, such as refractory bricks, crucibles, continuous casting powder, mold core and high-temperature materials; Mixture which mixed with other impurities can be used for steelmaking; Can be used as an electrode, brushes, carbon rod, carbon tube in electrical... less -
Kaolin is a kind of clay and clay rock mainly composed of... moreKaolin is a kind of clay and clay rock mainly composed of kaolinite group clay minerals. Kaolin is white, fine and soft, with good plasticity, fire resistance and other physical and chemical properties. It is also an important non-metallic mineral, which is called the four major non-metallic minerals together with mica, quartz and calcium carbonate, and is widely used.
Kaolin is mainly used in paper making, ceramics and refractory materials, followed by coating, rubber filler, enamel glaze and white cement raw materials, and a small amount is used in plastics, grinding wheels, daily cosmetics, medicine, textiles, petroleum, chemical industry, building materials, national defense and other industrial sectors. With the rapid development of modern science and technology, some high-tech fields began to use a large amount of kaolin as a new material, as well as high temperature resistant porcelain parts of atomic reactors, space shuttles and spaceships, also made of kaolin.
The continued popularity of the... less -
If a soft material is added between the cover plate and the... moreIf a soft material is added between the cover plate and the main body, under the action of the pressing force, the sealing material will be deformed, filling the wet groove, reducing the air leakage gap, and then playing a sealing role. in addition to the mechanical pressing force, the force generated by the static pressure difference acting on the cover plate uniformly acts on the cover plate.
when the direction of the force is the same as the pressing direction, it becomes the pressing force, and when it is opposite, it becomes the loosening force. the cover air tightness effect plays the opposite role. therefore, setting the closing direction of the cover plate correctly and making full use of the pressure difference existing in the system to positively press the cover plate can achieve a good leakage prevention effect.
The selection of dust removal bag is very important, it directly affects the dust removal effect of ultrafine vertical mill. the selection of dust removal bag is selected from the... less -
For the back-flushing bag-type ultrafine vertical mill, after... moreFor the back-flushing bag-type ultrafine vertical mill, after the bag room is cleaned, the pressure loss can only be reduced to 20-80% of that before cleaning because there is still a layer of adhering dust. when the cleaning is not complete, the adhesion layer is speckled. if the work is continued, the pressure loss will rise sharply. this shows that the pressure loss of the filter bag has decreased, which does not mean that the dust is completely cleaned.For multi-chamber bag-type ultrafine vertical mills, the method of off-line cleaning by separate chambers is often used. at this time, although the actual total filtration area of the ultrafine vertical mill is reduced, the pressure loss will increase slightly. when the cleaning is finished and the work is resumed, because the impedance of the bag chamber for cleaning has dropped and the air volume passing through it has increased, the total air volume of the reverse-blow bag ultrafine vertical mill will increase after cleaning, compared with... less
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1. The grinding efficiency is high. The vertical roller mill of... more1. The grinding efficiency is high. The vertical roller mill of the SBM vertical roller mill adopts large-diameter double-row spherical roller bearings, which makes the equipment run faster, reduces the power consumption of startup, and the rotating device is also simplified. Delicate and able to meet customer needs.
2. The output can reach 615 tons per hour, and the phenomenon of calcium stone blocking the feeding port will not occur during the grinding process, which improves the grinding capacity and output of the equipment.
3. The output range of vertical roller mill is still very large, the output of small equipment is 0.65 tons per hour, and the output of large equipment is 615 tons. Equipment with different output not only differs in the amount of raw materials used, but also the structure design of large equipment is more complicated, so their prices There is definitely a big difference, and different manufacturers have different cost inputs and different pricing. We need to compare and... less -
Too much or too little bearing oil, oil pollution or oil... moreToo much or too little bearing oil, oil pollution or oil quality is not in line with the lubricating system can ensure the normal operation of the ultrafine mill bearing, prevent foreign matter intrusion and sealing effect, but also eliminate friction heat, reduce friction and wear, and prevent the bearing from overheating Therefore, during production, be sure to ensure the amount and quality of ultrafine mill bearing grease.
Solution: It is necessary to regularly add oil to the bearing box according to the requirements of equipment use to avoid too much or too little oil. If there is a problem with the oil quality, it is necessary to clean, replace the oil and seal in time.
After long-term operation, some parts of the ultrafine mill may be severely worn or even broken. Common wear and tear parts include spring springs, bearings, pipe beams, beams and screen frames. The spring should be an important part of the ultrafine mill for shock absorption and noise reduction.
If the spring is worn or... less
Forum Topics
-
Calcination of calcium carbonate to produce barite is the... moreCalcination of calcium carbonate to produce barite is the traditional production process, with the development of science, the production of barite used mechanized, semi-mechanized shaft kiln and rotary kiln, fluidized bed furnace and other equipment.
Calcination time is correspondingly reduced, lime rotary kiln production only need 2 to 4 hours. Compared with kiln production,it can improve production efficiency more than 5 times. In recent years, the use of ultrafine mill for processing barite improve the utilization value and scope of barite.
The use of barite grinding mill processing flow as follows: the raw barite calcined by calcination equipment such as rotary kiln, the processed lime change into calcium oxide. Then the calcium into the mill’s host through the screw conveyor, under the joint action of the multilayer grinding rings and multiple rollers,it become fine barite powder. Barite powder are transported to storage silos under the action of wind, after removal equipment processing... lessLast post by Max Taranov - Feb 15159 views 0 likes2 -
Compared with traditional clay solid and hollow bricks, gypsum... moreCompared with traditional clay solid and hollow bricks, gypsum board has excellent properties such as light weight, high strength, thermal insulation, fire and sound insulation, convenient construction, and space saving.
At present, it has been widely used in internal partitions, wall cladding panels (instead of wall plastering), ceilings, sound-absorbing boards, ground base plates, and various decorative panels of various buildings such as office buildings, stores, hotels, industrial plants, and residential buildings.
In recent years, with the continuous investment and construction of gypsum industry projects, the production capacity of gypsum board has been expanding. According to statistics, by the end of 2021, the production capacity of gypsum board industry was 4.9 billion square meters, an increase of 120 million square meters compared with 2020.
With the continuous expansion of production capacity, the output of gypsum board keeps growing. According to the data, the output of gypsum board in... lessLast post by Max Taranov - Feb 14145 views 0 likes2 -
The upstream of gypsum industry chain mainly includes raw... moreThe upstream of gypsum industry chain mainly includes raw materials and fuel power required in production and processing, including natural gypsum and industrial by-product gypsum (phosphogypsum, desulfurized gypsum, etc.); The middle reaches are the production, processing and manufacturing of gypsum products; Downstream mainly includes construction industry, chemical industry (cement), agriculture, pharmaceutical industry and other application industries.
The upstream of gypsum is mainly raw materials and fuel power required in production and processing, mainly including natural gypsum and industrial by-product gypsum (phosphogypsum, desulfurization gypsum, etc.).
At present, because the distribution of natural gypsum is too centralized, the proportion of high-quality resources is relatively low, and the mining is not standardized, it is easy to damage the environment and cause safety accidents, and the industrial by-product gypsum is piled up in large quantities, so phosphogypsum and desulfurized... lessLast post by Max Taranov - Feb 14145 views 0 likes2 -
We aiming at the character of mica powder and improved the... moreWe aiming at the character of mica powder and improved the configuration of grinding mill, which will largely increase the efficiency. At the same time, the new equipment has better environmental performance and is suitable for modern the production process of mica powder.
Mica is the major solid waste of coal-fired power plants. Every year, the large sum or mica may cause environment pollution and resource waste.
However, mica can be applied as the mixed material of cement processing. The functions are improving capacity, energy saving, cost reducing, and can improve product performance.
The capacity of cement will rise for 10-15% if added with mica, and will rise for 20-30% if added mica and slag. It will also increase corrosion stability.
When producing mica powder, it can take the method of jointly grinding or separately grinding. The feeding mica fineness should be around 0.08mm (200 mesh), much smaller than other material.
Jointly grinding is to send the raw material, gypsum and mica into the... lessLast post by Max Taranov - Feb 13159 views 0 likes2 -
Currently, the world is very rich in gypsum reserves reach to... moreCurrently, the world is very rich in gypsum reserves reach to 150 million tons, the annual extraction of 1.30 million tons. China is a long history country rich in gypsum deposits, ink ore reserves accounted for 75% of the world's total reserves, which crystalline gypsum reserves 52.8 million tons, aphanitic gypsum reserves of 23.71 million tons, abundant gypsum reserves resources accumulated a solid foundation for the development and application of gypsum, gypsum has also been widely expanded in the field of pharmacy applications.
Excellent characteristics of gypsum, making it widely used in the metallurgical, chemical, petrochemical, high-energy physics, aerospace, electronics and other industries. Gypsum can be used as refractory materials, such as refractory bricks, crucibles, continuous casting powder, mold core and high-temperature materials; Mixture which mixed with other impurities can be used for steelmaking; Can be used as an electrode, brushes, carbon rod, carbon tube in electrical... lessLast post by Max Taranov - Feb 13122 views 0 likes3 -
Kaolin is a kind of clay and clay rock mainly composed of... moreKaolin is a kind of clay and clay rock mainly composed of kaolinite group clay minerals. Kaolin is white, fine and soft, with good plasticity, fire resistance and other physical and chemical properties. It is also an important non-metallic mineral, which is called the four major non-metallic minerals together with mica, quartz and calcium carbonate, and is widely used.
Kaolin is mainly used in paper making, ceramics and refractory materials, followed by coating, rubber filler, enamel glaze and white cement raw materials, and a small amount is used in plastics, grinding wheels, daily cosmetics, medicine, textiles, petroleum, chemical industry, building materials, national defense and other industrial sectors. With the rapid development of modern science and technology, some high-tech fields began to use a large amount of kaolin as a new material, as well as high temperature resistant porcelain parts of atomic reactors, space shuttles and spaceships, also made of kaolin.
The continued popularity of the... lessLast post by Max Taranov - Feb 5191 views 0 likes2 -
If a soft material is added between the cover plate and the... moreIf a soft material is added between the cover plate and the main body, under the action of the pressing force, the sealing material will be deformed, filling the wet groove, reducing the air leakage gap, and then playing a sealing role. in addition to the mechanical pressing force, the force generated by the static pressure difference acting on the cover plate uniformly acts on the cover plate.
when the direction of the force is the same as the pressing direction, it becomes the pressing force, and when it is opposite, it becomes the loosening force. the cover air tightness effect plays the opposite role. therefore, setting the closing direction of the cover plate correctly and making full use of the pressure difference existing in the system to positively press the cover plate can achieve a good leakage prevention effect.
The selection of dust removal bag is very important, it directly affects the dust removal effect of ultrafine vertical mill. the selection of dust removal bag is selected from the... lessLast post by Max Taranov - Jan 28913 views 0 likes40 -
For the back-flushing bag-type ultrafine vertical mill, after... moreFor the back-flushing bag-type ultrafine vertical mill, after the bag room is cleaned, the pressure loss can only be reduced to 20-80% of that before cleaning because there is still a layer of adhering dust. when the cleaning is not complete, the adhesion layer is speckled. if the work is continued, the pressure loss will rise sharply. this shows that the pressure loss of the filter bag has decreased, which does not mean that the dust is completely cleaned.For multi-chamber bag-type ultrafine vertical mills, the method of off-line cleaning by separate chambers is often used. at this time, although the actual total filtration area of the ultrafine vertical mill is reduced, the pressure loss will increase slightly. when the cleaning is finished and the work is resumed, because the impedance of the bag chamber for cleaning has dropped and the air volume passing through it has increased, the total air volume of the reverse-blow bag ultrafine vertical mill will increase after cleaning, compared with... lessLast post by Max Taranov - Jan 28197 views 0 likes2
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1. The grinding efficiency is high. The vertical roller mill of... more1. The grinding efficiency is high. The vertical roller mill of the SBM vertical roller mill adopts large-diameter double-row spherical roller bearings, which makes the equipment run faster, reduces the power consumption of startup, and the rotating device is also simplified. Delicate and able to meet customer needs.
2. The output can reach 615 tons per hour, and the phenomenon of calcium stone blocking the feeding port will not occur during the grinding process, which improves the grinding capacity and output of the equipment.
3. The output range of vertical roller mill is still very large, the output of small equipment is 0.65 tons per hour, and the output of large equipment is 615 tons. Equipment with different output not only differs in the amount of raw materials used, but also the structure design of large equipment is more complicated, so their prices There is definitely a big difference, and different manufacturers have different cost inputs and different pricing. We need to compare and... lessLast post by Max Taranov - Jan 28143 views 0 likes2 -
Too much or too little bearing oil, oil pollution or oil... moreToo much or too little bearing oil, oil pollution or oil quality is not in line with the lubricating system can ensure the normal operation of the ultrafine mill bearing, prevent foreign matter intrusion and sealing effect, but also eliminate friction heat, reduce friction and wear, and prevent the bearing from overheating Therefore, during production, be sure to ensure the amount and quality of ultrafine mill bearing grease.
Solution: It is necessary to regularly add oil to the bearing box according to the requirements of equipment use to avoid too much or too little oil. If there is a problem with the oil quality, it is necessary to clean, replace the oil and seal in time.
After long-term operation, some parts of the ultrafine mill may be severely worn or even broken. Common wear and tear parts include spring springs, bearings, pipe beams, beams and screen frames. The spring should be an important part of the ultrafine mill for shock absorption and noise reduction.
If the spring is worn or... lessLast post by Max Taranov - Jan 27189 views 0 likes2
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- First Name gjsohcat
- Last Name Gcat
- Gender Female
- Birthday August 4, 1998
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- Website http://www.gravelmill.com/
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