Automatic mixing and screening device for silicon carbide micropowder

Abstract

The invention discloses an automatic mixing and screening device for silicon carbide micropowder, which comprises a charging unit, a temporary raw material storage bin, a mixer, a raw material storage bin and a screening unit, wherein the charging unit is used for conveying the silicon carbide micropowder to the temporary raw material storage bin; the temporary raw material storage bin is used for temporarily storing the silicon carbide micropowder conveyed by the charging unit, and conveying the silicon carbide micropowder to the mixer; the mixer is used for mixing and stirring the received silicon carbide micropowder, and then conveying the silicon carbide micropowder to the raw material storage bin; the raw material storage bin is used for storing the silicon carbide micropowder discharged by the mixer, and conveying the silicon carbide micropowder to the screening unit; and the screening unit is used for performing screening treatment on the received silicon carbide micropowder. The automatic mixing and screening device for the silicon carbide micropowder can automatically perform charging, mixing and screening, can effectively improve the size composition of the silicon carbide micropowder, and meets a grain requirement of photovoltaic edge material cutting.

Description

technical field [0001] The invention relates to the field of recycling waste mortar produced by cutting silicon wafers in the solar energy industry, in particular to an automatic mixing and screening device used in the process of recovering silicon carbide micropowder from waste mortar cutting silicon wafers. Background technique [0002] The "Waste Mortar Recycling Project" arises from the manufacturing process of solar cells. Especially in recent years, the rapid development of silicon solar cells has made the "waste mortar recycling project" also have a lot of room for expansion. In the production of silicon solar cells, the silicon wafer manufacturing (silicon rod cutting) process will produce a large amount of "waste mortar", "waste cutting fluid" and some "waste silicon powder", we can collectively call them "waste mortar". These "waste mortars" can be processed to extract "silicon carbide micropowder", "cutting fluid" and "silicon powder" which have extremely high ap...

AI Technical Summary

Problems solved by technology

At present, most manufacturers generally adopt the mixing and screening method of parallel mixing and manual feeding, which is easy to cause defects such as uneven mixing and insufficient filtration of impurities.

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