Ultra-fine powder mill processes metallic silicon

• Publication time：2025-08-14
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Application of Ultrafine Grinding Mill in Processing Metallic Silicon

Photovoltaic Industry

The metallic silicon powder processed by the ultrafine grinding mill is made into solar - grade polysilicon, which is used to manufacture solar panels, providing key support for the development of the photovoltaic industry.

Electronic Materials

High - purity silicon powder is the basis for manufacturing silicon wafers. It meets the requirements of semiconductor manufacturing and promotes the development of high - performance and miniaturized electronic devices.

Refractory Materials

Fine silicon powder improves the performance of refractory materials, enhancing thermal shock resistance, erosion resistance and wear resistance, ensuring high - temperature industrial production.

Advantages of Ultrafine Grinding Mill in Processing Metallic Silicon

Efficient Crushing

Through the rolling and shearing of grinding rollers and grinding rings, metallic silicon is crushed to the micron - level or even sub - micron - level. The particle size adjustment range is wide, meeting the needs of different industries.

Low Pollution

Ceramic or high - hardness alloy wear - resistant parts are selected to reduce the introduction of impurities. An air classification system is equipped to avoid over - crushing and control the particle size distribution, ensuring product purity.

Energy - Saving and Cost - Effective

Compared with ball mills, the energy consumption is reduced by 30% - 50% in medium - fine particle size processing, which can save a large amount of electricity bills for enterprises and reduce production costs.

Process of Ultrafine Grinding Mill in Processing Metallic Silicon

Coarse Crushing

The jaw crusher crushes the block - shaped metallic silicon into small particles of 3 - 5mm.

Grinding and Classification

The ultrafine grinding mill crushes the small particles to 100 - 400 mesh. The separator accurately classifies the metallic silicon powder, and the coarse particles are returned for re - grinding.

Iron Removal and Packaging

Multi - stage magnetic separation is used to remove iron filings, improving the purity of the silicon powder. It is encapsulated in a vacuum or inert gas environment to prevent the silicon powder from oxidation and moisture.

Key Points of Ultrafine Grinding Mill in Processing Metallic Silicon

Cooling Measures

A large amount of heat is generated during processing. When necessary, a water - cooling or air - cooling system is introduced to reduce the equipment temperature, extend its service life and ensure the quality of the silicon powder.

Selection of Wear - Resistant Parts

Grinding rollers and grinding rings with tungsten carbide or ceramic linings are preferred. Regularly check the wear condition and replace them in time to ensure product quality.

Iron Removal Link

Magnetic separators or eddy current separators are configured before and after crushing. Multi - stage magnetic separation is used to remove iron filings to ensure product purity.

Explosion - Proof Measures

Metallic silicon powder is flammable. It is processed under the protection of inert gas, and explosion - proof motors and dust removal systems are equipped to ensure production safety.

Conclusion

With its advantages, the ultrafine grinding mill has become an ideal choice for metallic silicon processing. By controlling process parameters, paying attention to processing matters and improving the process flow, high - quality processing can be achieved. It plays an important role in fields such as photovoltaics, electronic materials and refractory materials.