Texturing cleaning machine and water circulation method

Abstract

The invention discloses a texturing cleaning machine. The texturing cleaning machine comprises a feeding apparatus, a discharging apparatus, a texturing tank, an alkali tank, an acid tank, a water tank and a blow-drying tank; the water tank is arranged between the texturing tank and the alkali tank; the water tank is arranged between the alkali tank and the acid tank; the water tank is arranged between the acid tank and the blow-drying tank; the feeding apparatus is arranged at the front end of the texturing tank; the discharging apparatus is arranged at the back end of the blow-drying tank; the water tank comprises a tank body, at least three groups of water jet cutters, a transmission pipe assembly and a water collecting tray; the transmission pipe assembly is arranged in the tank body, and the water jet cutters are arranged above and below the transmission pipe assembly; and the water collecting tray is arranged below the water jet cutter at the front end. According to the texturing cleaning machine, independent collection of different concentrations and neutralizing by acid and alkali are adopted to lower concentration of cleaning water, so that water resource is effectively saved and production cost is lowered.

Description

technical field [0001] The invention relates to the field of solar cell production, in particular to a velvet cleaning machine and a water circulation method. Background technique [0002] The production process of solar cells includes primary cleaning, diffusion, etching, secondary cleaning, PECVD, sintering, testing and sorting, and inspection and storage. Among them, the purpose of primary cleaning is to eliminate various pollutants adsorbed on the surface of silicon wafers , and texture the surface of the silicon wafer to reduce the reflectivity of the silicon wafer surface to light, so that the incident light is reflected to the slope at another angle, forming secondary or multiple absorptions, thereby increasing the absorption rate. However, cleaning requires a lot of water, and the cleaned water needs to be treated, and it can only be discharged after reaching the standard. Enterprises generally collect all the wastewater and then treat the wastewater, which takes a l...

AI Technical Summary

Problems solved by technology

However, cleaning requires a lot of water, and the cleaned water needs to be treated, and it can only be discharged after reaching the standard. Enterprises generally collect all the wastewater and then treat the wastewater, which takes a long time to process, and the steps are cumbersome. The cost is high, so there is an urgent need for a water-saving velvet cleaning agent

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