Waste liquid treatment device for black silicon production

Abstract

The invention relates to the technical field of black silicon production, and discloses a waste liquid treatment device for black silicon production. The device comprises a bottom plate, a waste liquid collecting tank is fixedly installed at the top of the bottom plate, a waste liquid collecting pipe is fixedly installed on the left side of the waste liquid collecting tank, a first water pump is fixedly installed at the top of the bottom plate and located on the right side of the waste liquid collecting tank, and a reaction cylinder is fixedly installed at the top of the bottom plate and located on the right side of the first water pump. A residue collecting box is mounted on the reaction cylinder; the purpose of collecting flocculent heavy metals is achieved; a filter screen is mounted inthe residue collecting box, the purpose of separating heavy metals from wastewater is achieved, the residue collecting box can be lifted to send out heavy metal residues by installing a winding ropeon a winding wheel, heavy metals in the waste liquid can be effectively removed and the wastewater is purified by installing a filter tank and filling the filter tank with quartz sand and active carbon.

Description

technical field [0001] The invention relates to the technical field of black silicon production, in particular to a waste liquid treatment device for black silicon production. Background technique [0002] Black silicon is a new type of electronic material that can greatly improve the photoelectric conversion efficiency discovered by the latest research. Generally speaking, black silicon is to make the silicon wafer black, and the silicon wafer is still the original silicon wafer, and the surface is coated with paint. layer, which can greatly reduce the reflection, so that the silicon wafer looks black. The method is to brush the coating to make the surface have bumps one by one. The main component of the coating is silicon dioxide. Let's look at the existing silicon The cells are all blue, and there are grids on them. Such silicon chips have been passivated. The purpose of passivation is to reduce reflection and remove dangling bonds, but we still look blue and bright. , s...

AI Technical Summary

Problems solved by technology

[0005] Aiming at the deficiencies of the prior art, the present invention provides a waste liquid treatment device for black silicon production, which has the advantages of effectively removing heavy metals in the waste liquid and purifying waste water, and solves the problem that the waste liquid produced by the current black silicon production is not easy Deal with the problem of polluting the environment

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