How Is Polysilicon Mined? What Is The Price Of Polysilicon Today?

Polysilicon mining is a complex process involving geological exploration, excavation and processing. The following is the basic process of polysilicon mining.

Geological exploration: First, geological exploration work is carried out to determine the location of polysilicon deposits, the size and quality of the ore body through geological exploration. This work requires the use of geophysical exploration, geochemical exploration, rock and mineralogical observation and drilling to confirm the geological reserves and grade of polysilicon deposits.

Excavation: After the deposit is identified, the extraction of the ore is carried out. Open pit mining and underground mining are usually used. Open-pit mining is directly mining polysilicon ore on the surface, suitable for geological conditions are relatively simple mining areas; and underground mining is underground mining operations, suitable for deposits deeper, larger ore body size or complex surface topography of the mining area.

Crushing: the extracted polysilicon ore needs to be crushed by crushing equipment for coarse and fine crushing, crushing it into smaller particles. This can improve the crushing degree and utilization rate of polysilicon, and facilitate the subsequent beneficiation and processing operations.

Beneficiation: The crushed polysilicon ore also needs to undergo beneficiation treatment, which includes re-election, flotation and other ways to improve the grade of polysilicon, and remove the impurities, in order to meet the requirements of industrial production.

Processing: Finally, the polysilicon ore obtained after beneficiation treatment is processed. The processing production line usually includes dry crushing of ore, wet crushing of ore, grinding, sieving and magnetic separation, etc., and is gradually processed into polysilicon particles that meet the requirements of industrial production. The processed polysilicon particles can be used in solar cells, semiconductor devices, fiber optic communications and many other fields.

In the process of polysilicon mining, it is necessary to give full consideration to environmental protection and sustainable development, avoid damage to the geological environment, reduce energy and resource consumption, strengthen the technological innovation of the production process, and promote the sustainable development of polysilicon mining production.