Method and device for breaking polysilicon

Abstract

The invention discloses a method for breaking polysilicon, which comprises the following steps of: 1) putting the polysilicon into a pool by taking the case that the polysilicon is just sunk in the water as the reference; and 2) applying instant high-voltage electricity to the pool, wherein the electric field intensity generated by the high-voltage electricity is more than or equal to the critical electric field intensity of the pool. With the method for breaking the polysilicon, which is provided by the invention, the traditional polysilicon breaking thought is broken through, the polysilicon is broken by the hydroelectric effect, the large-scale breaking production can be realized, and the technology is simple. The device for breaking the polysilicon, which is provided by the invention, has the advantages of simple and safe structure and easiness in operation. According to the invention, the metal pollution problem in the prior art is avoided, breaking is even, the formation of polysilicon powder is effectively reduced, and the method and the device for breaking polysilicon provided by the invention have a very important meaning for improving the enterprise benefit.

Description

technical field

[0001] The invention relates to a method and equipment for crushing light polysilicon, belonging to the field of polysilicon crushing. Background technique

[0002] With the gradual depletion of fossil energy and the aggravation of environmental pollution, it is imperative to explore a pollution-free renewable energy. Making full use of solar energy is of great economic and strategic significance to achieve sustainable development under a low-carbon model. Polysilicon is the main raw material for the production of solar photovoltaic cells. The crushing of polysilicon is the last production link of polysilicon production enterprises, and its completion is directly related to the quality of polysilicon and enterprise benefits.

[0003] Polysilicon enterprises crush polysilicon almost all by mechanical crushing, and there are two methods of mechanical crushing: manual crushing and automatic crushing. Manual crushing is the method of using a hammer (or other h...

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