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Technique for producing silicon carbide granular sand

A technology of production process and grain size sand, which is applied in the direction of grain processing, etc., can solve the problems of poor workshop environment and serious dust, and achieve the effects of energy saving, low maintenance frequency and simple process

Inactive Publication Date: 2013-10-16
新疆新路标光伏材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] d. The workshop environment is poor and the dust is serious

Method used

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  • Technique for producing silicon carbide granular sand

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] Example 1 : Put the silicon carbide material with a particle size of less than 300mm into the silo, enter the jaw crusher through the silo, and perform the first crushing into a block with a particle size of 10-40mm, and send it into the storage silo by an elevator, and then The vibrating feeder controlled by the electric vibration feeder sends the material to the first-stage pair of rollers for the second crushing at a speed of 1200r / min, and sends the crushed material to the second-stage pair of rollers for the third crushing. Crushed, then sent to the 1# vibrating screen with an aperture of 4mm by the elevator for screening, the unpassed material is returned to the secondary roller for re-crushing through the conveyor belt, and the passed material is sent to the 2# vibrating screen with an aperture of 0.4mm , after re-screening, use a magnetic separator to remove iron from the material that has not passed through the 2# vibrating screen with an aperture of 0.4mm, an...

Embodiment 2

[0022] Example 2 : Put the silicon carbide material with a particle size of less than 300mm into the silo, enter the jaw crusher through the silo, and perform the first crushing into a block with a particle size of 10-40mm, and send it into the storage silo by an elevator, and then The vibrating feeder controlled by the electric vibration feeder sends the material to the first pair of rollers at a speed of 1500r / min for the second crushing, and sends the crushed material to the second stage of the rollers for the third crushing. Crushing, and then sent by the elevator to the 1# vibrating screen with an aperture of 4.5mm for screening, the unpassed material is returned to the secondary roller for re-crushing through the conveyor belt, and the passed material is sent to the 2# vibrating screen with an aperture of 0.55mm After re-screening, use a magnetic separator to remove iron from the 2# vibrating sieve with an aperture of 0.55mm and test the water content. Take 200g~300g of...

Embodiment 3

[0023] Example 3 : Put the silicon carbide material with a particle size of less than 300mm into the silo, enter the jaw crusher through the silo, and perform the first crushing into a block with a particle size of 10-40mm, and send it into the storage silo by an elevator, and then The vibrating feeder controlled by the electric vibration feeder sends the material to the first-stage pair of rollers for the second crushing at a speed of 1900r / min, and sends the material crushed by the first-stage pair of rollers to the second-stage pair of rollers for the third crushing. Crushing, and then sent to the 1# vibrating screen with an aperture of 5mm by the elevator for screening, the materials that have not passed through the conveyor belt are returned to the secondary roller for re-crushing, and the materials that pass are sent to the 2# vibrating screen with an aperture of 0.5mm , after re-screening, use a magnetic separator to remove iron from the 2# vibrating screen that has no...

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Abstract

The invention discloses a technique for producing silicon carbide granular sand. In the technique, multiple times of crushing, sieving, iron removal, detection and drying are performed on a silicon carbide material so as to obtain granular sand with high quality. The technique is simple, low in equipment investment cost and low in maintenance frequency, saves energy, and has the advantage of obvious iron removal effect.

Description

technical field [0001] The invention belongs to a production process method of abrasive materials, in particular to a production process method of silicon carbide grain size sand. Background technique [0002] Silicon carbide particle size sand is also called silicon carbide sand and silicon carbide sub-mesh sand, generally divided into 8#~320#, the larger the model, the finer the particle size. Silicon carbide grain size sand is divided into green and black. It is an ideal abrasive and is widely used in the abrasives industry. Sand with a particle size greater than 320# is generally called silicon carbide micropowder, which is an ideal wire cutting edge material for solar crystal silicon wafers and semiconductors. The grain size sand produced by this process method is mainly used to provide high-quality raw materials for the production of silicon carbide micropowder. [0003] The raw material of the coarse crushing process is a silicon carbide block material with a partic...

Claims

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Application Information

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IPC IPC(8): B02C21/00
Inventor 于德水井东辉张善林
Owner 新疆新路标光伏材料有限公司