Industrial silicon powder is the basic raw material for organosilicon polymer synthesis in the silicone chemical industry, and it is also the main material for the production of silica sol; after industrial silicon powder is made into amorphous silicon, it is processed into monocrystalline silicon by Czochralski method. The silicon wafer is the necessary semiconductor material in the electronics industry and the IT industry; the polysilicon produced by the industrial silicon powder after further processing and purification is the basic raw material for the production of solar photovoltaic cells; Alloying agent, thereby improving the hardenability of steel. The investment potential of silicon grinding mill industry is huge. Therefore, how to produce silicon powder? Here’s what many investors care about:

How to produce silicon powder? The deep processing of high-purity silicon powder adopts physical methods to process and purify industrial silicon powder. This technology uses ordinary industrial silicon as the production material. The ordinary industrial silicon is processed by physical methods and controlled by an automatic operating system to improve the grade, eliminate impurities, maintain the hardness of the silicon crystal, and the structure does not change. High-purity silica fume. Silicon powder production process: After the qualified industrial silicon is washed with pure water, it is broken into small particles. After electromagnetic primary selection, it is sent to the first and second-level silicon Raymond mills and super-raymond mills for grinding to 200-400 mesh. In the process, an appropriate amount of pure water is added, and the milled silicon liquid flows into the sedimentation tank for liquid deposition, and then a catalyst with an acid value of 6 is added to start stirring for 2 to 3 hours to precipitate impurities in the silicon liquid. It is crushed for electromagnetic selection and screening, and finally enters the vacuum packaging through the cyclone collection equipment.

The silicon grinding mill equipment is composed of cleaning device, primary magnetic separation, milling system, sedimentation system, drying system, magnetic separation, and cyclone collection system. Auxiliary facilities include power supply system and water purification system. The main machinery of silicon powder production equipment are: silicon Raymond mill, sedimentation system, magnetic separation, cyclone collector, recovery system, wind crusher, pure water device, axial flow machine; electrical equipment includes transformer, high voltage cabinet, low voltage control system, power distribution; environmental protection dust removal equipment.

Cleaning system: It consists of an electric rolling screen and a high-pressure water gun. After the rolling screen rotates, the high-pressure water gun cleans the impurities on the silicon block, and uses the transfer belt to enter the first-level silicon Raymond mill for grinding.

Primary magnetic separation: It is composed of electric magnetic separator and magnetic separation belt. The silicon powder produced by the first-level silicon Raymond mill has a fineness of 10-20 meshes. The magnetic separation belt absorbs the ferrous substances in the silicon powder.

Grinding system: It is composed of secondary silicon Raymond mill and silicon ultra-fine Raymond mill. The silicon powder after primary magnetic separation enters the secondary silicon Raymond mill through the conveyor belt, and is ground to 200 mesh, and pure water is added to the grinding process. To cool down and eliminate dust, the silica slurry milled by the second-stage silicon Raymond mill enters the ultra-fine Raymond mill and grinds to 400 mesh.

Settlement system: It consists of a settling tank and a filter. The silicon powder slurry is ground to 400 mesh, and the degrading acid is added to the settling tank, and the degradation acid is continuously stirred to react with the calcium and aluminum in the silicon powder. drying system.

Drying system: It consists of a slurry dehydrator and a dryer. The silicon powder slurry is dehydrated by the dehydrator and enters the dryer for drying.

HCMilling(Guilin Hongcheng), as a silicon powder production equipment manufacturer, our Raymond mill and ultra-fine mill are the main equipment of silicon grinding mill equipment. It can process 80-2500 mesh ultra-fine silicon powder, which has been widely used in the market and has a good reputation. It can also be equipped with a complete set of additional equipment for silicon powder production. If you have relevant procurement needs, please give us a call to learn more about the equipment.

Static electromagnetic separation system: It is composed of air crusher and static electromagnetic separator. The dried silicon powder is crushed into powder by air, and the iron trioxide and iron in the silicon powder are adsorbed by the static electromagnetic separator.

Cyclone collection system: It consists of a cyclone collector and a silo. The treated silicon powder is collected by the cyclone collector and then enters the silo.

If you want to know more about silicon powder production equipment and the process information of silicon grinding mill, please contact mkt@hcmilling.com or call at +86-773-3568321, HCM will tailor for you the most suitable grinding mill program based on your needs, more details please check https://www.hc-mill.com.