Water-saving washing device of solar battery silicon wafer
A technology for solar cells and cleaning devices, which is applied to circuits, electrical components, cleaning methods and appliances, etc., can solve the problems of high production costs and large water consumption of cleaning devices, and achieve simple structure, water saving and production cost reduction Effect
Inactive Publication Date: 2012-01-11
SUZHOU CHICHEN CLEANING TECH
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Problems solved by technology
The solar cell silicon wafer cleaning device with the above structure consumes a lot of water, and the production cost is high
Method used
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[0012] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.
[0013] like figure 2 As shown, the solar cell silicon wafer water-saving cleaning device includes: a pre-washing tank 1, an alkali washing tank 2, an alkali rinsing tank 3, an acid washing tank 4, and an acid rinsing tank 5. The bottom of the washing tank 1 is provided with a first sewage outlet 11, one side wall of the pre-wash tank 1 is provided with a first overflow port 12, and the other side wall is provided with a first liquid inlet 13; The bottom of the 2 is provided with a second sewage outlet 21, the bottom of the alkali washing tank 2 is also provided with a second liquid inlet 22, and the side wall of the alkali washing tank 2 is provided with a second overflow port 23; the alkali rinsing tank 3 The bottom of the base is provided with a third sewage outlet 31, one side wall of the alkali rinsing tank 3 is provided with a...
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The invention discloses a water-saving washing device of a solar battery silicon wafer. The water-saving washing device comprises a prewashing tank, an alkali washing tank, an alkali poaching tank, an acid washing tank and an acid poaching tank which are adjacent in sequence, wherein the bottoms of the alkali washing tank, the acid washing tank and the acid poaching tank are respectively providedwith a liquid inlet; side walls of the washing tanks are all provided with overflowing openings; the bottoms of all the washing tanks are provided with sewage outlets; the liquid inlet of the alkali poaching tank is arranged on the side wall of the alkali poaching tank; a bypass overflowing pipe is arranged between the liquid inlet of the alkali poaching tank and the overflowing opening of the acid poaching tank; the liquid inlet of the prewashing tank is arranged on the side wall of the prewashing tank; and a bypass overflowing pipe is arranged between the liquid inlet of the prewashing tankand the overflowing opening of the alkali poaching tank. Therefore, water overflows to the alkali poaching tank from the acid poaching tank and then overflows to the prewashing tank, thus the water is fully utilized in the whole process, the water consumption in the solar battery silicon wafer washing process is reduced, and the production cost is lowered.
Description
technical field [0001] The invention relates to a cleaning device for silicon wafers of solar batteries, in particular to a water-saving cleaning device for silicon wafers of solar batteries. Background technique [0002] During the cutting process of solar cell silicon wafers, cutting liquid, silicon powder, silicon oxide and other metal ions will remain on the surface, so it is necessary to send solar cell silicon wafers to a cleaning device for water pre-washing, alkali washing, and pickling to remove impurities, after alkaline washing, it needs to be rinsed before entering the next pickling, and after pickling, it also needs to be rinsed. Traditional cleaning devices such as figure 1 As shown, it usually includes successively adjacent prewash tank 1, alkali wash tank 2, alkali rinse tank 3, pickling tank 4, and acid rinse tank 5. The bottom of each of the above wash tanks is provided with a liquid inlet, and the side wall of the tank body The water in the prewashing ta...
Claims
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IPC IPC(8): H01L31/18B08B3/08
CPCY02P70/50
Inventor 陶国伟
Owner SUZHOU CHICHEN CLEANING TECH