Cleaning tank liquid discharging and filtering device for crystalline silicon texturing

Abstract

The utility model discloses a liquid discharging and filtering device of a cleaning tank for crystalline silicon texturing, which belongs to the technical field of solar photovoltaic and comprises a texturing tank body, an opening is arranged on one side of the upper end of the texturing tank body, a control mechanism is arranged on the other side of the upper end of the texturing tank body, and a water inlet is arranged on the lower side of one end of the texturing tank body. A water inlet is formed in one side of the texturing tank body, a water outlet is formed in one side of the water inlet, a sealing assembly is arranged at the position, corresponding to the opening, of the upper end of the texturing tank body, and a filtering assembly is arranged at the position, corresponding to the water outlet, of one end of the texturing tank body. Liquid medicine is sequentially filtered through the gravel layer, the filter screen layer and the activated carbon layer and then discharged out of the filter box through the liquid discharging pipe, the liquid medicine discharged after use can be filtered and then discharged by arranging the filter assembly, and pollution of the liquid medicine to the environment is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of solar photovoltaics, and in particular relates to a drainage filtering device for a cleaning tank used for crystal silicon texturing. Background Art

[0002] Single crystals of silicon are an excellent semiconductor material used in the manufacture of semiconductor devices and solar cells. Due to the numerous advantages of solar energy, such as cleanliness, environmental friendliness, and convenience, solar energy utilization technology has made significant progress in research and development, commercial production, and market development over the past three decades, becoming one of the world's fastest-growing and most stable emerging industries. Single crystal silicon construction projects offer a vast market and broad potential for development. Silicon, which accounts for 25.8% of the Earth's crust, provides an inexhaustible source for single crystal silicon production. Single crystal silicon production typically begins by producing polycrystalline silicon or amorphous silicon, then growing rod-shaped single crystals from the melt using the Czochralski or floating zone melting methods. Texturing is a method of processing single crystal silicon. Within a certain range of alkali concentrations, single crystal silicon wafers exhibit anisotropic properties. This process creates a pyramidal morphology on the surface of the wafer, creating a textured surface that maximizes sunlight absorption. This allows incident sunlight to be reflected and refracted multiple times on the wafer surface, thereby improving the conversion efficiency of solar cells. In related technologies, when texturing single-crystal silicon wafers, the single-crystal silicon wafers need to be inserted into the texturing basket and placed in the texturing equipment. The texturing tank needs to be added with texturing additives to texturize the single-crystal silicon. Texturing additive products cannot be directly tested on the client before they are mature. Therefore, texturing additive manufacturers need to use texturing equipment when developing texturing formulas. The texturing equipment in the laboratory can be used to simulate the texturing conditions of the production line, so as to develop more beneficial texturing additives to improve the photoelectric conversion efficiency.

[0003] The existing technology has the following problems: the existing texturing tank body does not have a filtering function and cannot filter the liquid medicine discharged after use. The direct discharge of the liquid medicine causes pollution to the environment. At the same time, the original device does not have a sealing function for the opening. When the opening is not in use, dust and other impurities are likely to fall into the texturing tank body through the opening. Utility Model Content

[0004] In order to solve the problems raised in the above background technology, the utility model provides a drainage filter device for a cleaning tank for crystal silicon texturing, which has a filtering function and can filter the liquid discharged after use.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a drainage and filtering device for a cleaning tank for crystalline silicon texturing, comprising a texturing tank body, an opening being provided on one side of the upper end of the texturing tank body, a control mechanism being provided on the other side of the upper end of the texturing tank body, a water inlet being provided on the lower side of one end of the texturing tank body, a water outlet being provided on one side of the water inlet, a sealing component being provided at a position corresponding to the opening on the upper end of the texturing tank body, and a filtering component being provided at a position corresponding to the water outlet on one end of the texturing tank body.

[0006] Preferably, the filter assembly includes a filter box, a horizontal plate, a drain pipe, a sand and gravel layer, a filter mesh layer, an activated carbon layer and an installation assembly, wherein a horizontal plate is provided at a position corresponding to the water outlet on the lower side of one end of the texturing trough body, a filter box is provided on the upper end of the horizontal plate, a drain pipe is provided on the lower side of the filter box away from one end of the texturing trough body, a sand and gravel layer is provided inside the filter box, a filter mesh layer is provided on one side of the sand and gravel layer, an activated carbon layer is provided on the other side of the filter mesh layer, and an installation assembly is provided on the upper end of the texturing trough body.

[0007] Preferably, the mounting assembly includes a mounting plate, fixing bolts, fixing holes, a handle and a slot, wherein a mounting plate is provided at the upper end of the filter box, a handle is provided at the upper end of the mounting plate, the mounting plate and the filter box are connected by fixing bolts, a fixing hole corresponding to the fixing bolt is provided at the upper end of the filter box, and a slot corresponding to the sand and gravel layer, the filter mesh layer and the activated carbon layer is provided at the lower end of the inside of the filter box.

[0008] Preferably, a rubber pad is bonded to the lower end of the mounting plate by glue, and through holes corresponding to the fixing bolts are provided on both sides of the mounting plate.

[0009] Preferably, the sealing assembly includes a fixing frame, a rotating seat, a sealing plate, a shift plate and a support plate, wherein two fixing frames are provided at a position corresponding to the opening at one end of the velveting trough body, a rotating seat is provided between the two fixing frames, a sealing plate is provided at one end of the rotating seat, a shift plate is provided at one end of the sealing plate, and a sealing plate is provided on one side between the two fixing frames.

[0010] Preferably, the swivel seat and the fixing frame are rotatably connected via an axle pin, and the swivel seat and the sealing plate are a welded integral structure.

[0011] Compared with the prior art, the beneficial effects of the present invention are:

[0012] 1. The utility model sets a filter component. The used liquid medicine in the texturing tank body enters the filter box through the water outlet. The liquid medicine is filtered through the sand and gravel layer, the filter layer and the activated carbon layer in sequence and then discharged from the filter box through the drain pipe. By setting the filter component, the liquid medicine discharged after use can be filtered and then discharged, thereby reducing the pollution of the liquid medicine to the environment.

[0013] 2. The utility model sets a sealing component. When there is no need to feed materials through the opening, the sealing plate is moved by the shifting plate. The swivel seat at one end of the sealing plate rotates on the fixed frame. After the sealing plate rotates to the upper side of the opening, the opening can be sealed. After the sealing plate is opened, the support plate can support the sealing plate. By setting the sealing component, the opening can be sealed when it is not in use, so as to prevent dust and other impurities from falling into the texturing tank body through the opening when the opening is not in use. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a three-dimensional diagram of the utility model;

[0015] Figure 2 This is a cutaway perspective view of the filter box of the present invention;

[0016] Figure 3 This is a three-dimensional diagram of the mounting plate of the utility model when it is installed;

[0017] Figure 4 For this utility model Figure 1 A magnified stereogram of point A;

[0018] In the figure: 1. Textile making tank body; 2. Filter assembly; 21. Filter box; 22. Horizontal plate; 23. Drain pipe; 24. Sand and gravel layer; 25. Filter layer; 26. Activated carbon layer; 27. Mounting assembly; 271. Mounting plate; 272. Fixing bolt; 273. Fixing hole; 274. Carrying handle; 275. Slot; 3. Sealing assembly; 31. Fixing frame; 32. Rotating seat; 33. Sealing plate; 34. Dial plate; 35. Support plate; 4. Water outlet; 5. Water inlet; 6. Control mechanism; 7. Opening. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0020] Example 1

[0021] See also Figure 1-3The utility model provides the following technical solutions: a drainage and filtering device for a cleaning tank for crystal silicon texturing, comprising a texturing tank body 1, an opening 7 is provided on one side of the upper end of the texturing tank body 1, a control mechanism 6 is provided on the other side of the upper end of the texturing tank body 1, a water inlet 5 is provided on the lower side of one end of the texturing tank body 1, a water outlet 4 is provided on one side of the water inlet 5, a sealing component 3 is provided at a position corresponding to the opening 7 on the upper end of the texturing tank body 1, and a filtering component 2 is provided at a position corresponding to the water outlet 4 at one end of the texturing tank body 1.

[0022] Specifically, the filter assembly 2 includes a filter box 21, a horizontal plate 22, a drain pipe 23, a sand and gravel layer 24, a filter screen layer 25, an activated carbon layer 26 and an installation assembly 27, wherein a horizontal plate 22 is provided at a position corresponding to the water outlet 4 on the lower side of one end of the texturing trough body 1, a filter box 21 is provided on the upper end of the horizontal plate 22, a drain pipe 23 is provided on the lower side of the end of the filter box 21 away from the texturing trough body 1, a sand and gravel layer 24 is provided inside the filter box 21, a filter screen layer 25 is provided on one side of the sand and gravel layer 24, an activated carbon layer 26 is provided on the other side of the filter screen layer 25, and an installation assembly 27 is provided on the upper end of the texturing trough body 1.

[0023] By adopting the above technical solution, the used liquid medicine in the texturing tank body 1 enters the filter box 21 through the water outlet 4, and the liquid medicine is filtered through the sand and gravel layer 24, the filter layer 25 and the activated carbon layer 26 in turn, and then discharged from the filter box 21 through the drain pipe 23. By setting the filter component 2, the liquid medicine discharged after use can be filtered and then discharged, thereby reducing the pollution of the liquid medicine to the environment.

[0024] Specifically, the mounting assembly 27 includes a mounting plate 271, a fixing bolt 272, a fixing hole 273, a handle 274 and a slot 275, wherein a mounting plate 271 is provided at the upper end of the filter box 21, a handle 274 is provided at the upper end of the mounting plate 271, the mounting plate 271 and the filter box 21 are connected by a fixing bolt 272, a fixing hole 273 corresponding to the fixing bolt 272 is provided at the upper end of the filter box 21, and a slot 275 corresponding to the sand and gravel layer 24, the filter mesh layer 25 and the activated carbon layer 26 is provided at the lower end of the inside of the filter box 21.

[0025] By adopting the above technical solution, the sand and gravel layer 24, the filter mesh layer 25 and the activated carbon layer 26 are placed in the slot 275 of the filter box 21, and then the mounting plate 271 is placed on the upper end of the filter box 21, and the fixing bolts 272 are screwed into the fixing holes 273 to fix the mounting plate 271, thereby achieving the effect of limiting and fixing the sand and gravel layer 24, the filter mesh layer 25 and the activated carbon layer 26. By setting the mounting assembly 27, it is convenient to disassemble, assemble and replace the sand and gravel layer 24, the filter mesh layer 25 and the activated carbon layer 26.

[0026] Specifically, a rubber pad is glued to the lower end of the mounting plate 271 , and through holes corresponding to the fixing bolts 272 are provided on both sides of the mounting plate 271 .

[0027] By adopting the above technical solution, a rubber pad is provided to improve the sealing performance after the mounting plate 271 is installed on the upper end of the filter box 21 , and the fixing bolt 272 can pass through the mounting plate 271 and be screwed into the fixing hole 273 .

[0028] When this embodiment is used, when the drainage filter device of the cleaning tank for crystal silicon texturing is used, the device is installed in a suitable position, and by setting the filter component 2, the used medicinal liquid in the texturing tank body 1 enters the filter box 21 through the water outlet 4, and the medicinal liquid is filtered through the sand and gravel layer 24, the filter screen layer 25 and the activated carbon layer 26 in turn, and then discharged from the filter box 21 through the drain pipe 23. By setting the filter component 2, the medicinal liquid discharged after use can be filtered and then discharged, reducing the pollution of the medicinal liquid to the environment. By setting the installation component 27, the sand and gravel layer 24, the filter screen layer 25 and the activated carbon layer 26 are placed in the card slot 275 of the filter box 21, and then the installation plate 271 is placed on the upper end of the filter box 21, and the fixing bolt 272 is screwed into the fixing hole 273 to fix the installation plate 271, so as to achieve the effect of limiting and fixing the sand and gravel layer 24, the filter screen layer 25 and the activated carbon layer 26. By setting the installation component 27, it is convenient to disassemble and replace the sand and gravel layer 24, the filter screen layer 25 and the activated carbon layer 26.

[0029] Example 2

[0030] The difference between this embodiment and embodiment 1 is that the sealing assembly 3 includes a fixing frame 31, a rotating seat 32, a sealing plate 33, a shift plate 34 and a support plate 35, wherein two fixing frames 31 are provided at a position corresponding to the opening 7 at one end of the texturing trough body 1, a rotating seat 32 is provided between the two fixing frames 31, a sealing plate 33 is provided at one end of the rotating seat 32, a shift plate 34 is provided at one end of the sealing plate 33, and a sealing plate 33 is provided on one side between the two fixing frames 31.

[0031] By adopting the above technical solution, when there is no need to feed materials through the opening 7, the sealing plate 33 is moved by the dial plate 34, and the swivel seat 32 at one end of the sealing plate 33 rotates on the fixed frame 31. After the sealing plate 33 rotates to the upper side of the opening 7, the opening 7 can be sealed. After the sealing plate 33 is opened, the support plate 35 can support the sealing plate 33. By arranging the sealing component 3, the opening 7 can be sealed when it is not in use, so as to prevent dust and other impurities from falling into the texturing tank body 1 through the opening 7 when the opening 7 is not in use.

[0032] Specifically, the swivel seat 32 and the fixing frame 31 are rotatably connected via an axle pin, and the swivel seat 32 and the sealing plate 33 are a welded integral structure.

[0033] By adopting the above technical solution, the rotating seat 32 can rotate on the fixing frame 31, and the rotating seat 32 and the sealing plate 33 are welded into an integrated structure, which is more sturdy and durable.

[0034] When this embodiment is used, by setting the sealing component 3, when there is no need to feed materials through the opening 7, the sealing plate 33 is moved by the shifting plate 34, and the rotating seat 32 at one end of the sealing plate 33 rotates on the fixing frame 31. After the sealing plate 33 rotates to the upper side of the opening 7, the opening 7 can be sealed. After the sealing plate 33 is opened, the supporting plate 35 can support the sealing plate 33. By setting the sealing component 3, the opening 7 can be sealed when it is not in use, so as to prevent dust and other impurities from falling into the texturing tank body 1 through the opening 7 when the opening 7 is not in use.

[0035] The working principle and use process of the present invention: When the drainage filter device for the cleaning tank for crystal silicon texturing is used, the device is installed in a suitable position, and by setting the filter component 2, the used liquid in the texturing tank body 1 enters the filter box 21 through the water outlet 4, and the liquid passes through the sand and gravel layer 24, the filter layer 25 and the activated carbon layer 26 in turn and is then discharged from the filter box 21 through the drain pipe 23. By setting the filter component 2, the liquid discharged after use can be filtered and then discharged, reducing the pollution of the liquid to the environment. By setting the installation component 27, the sand and gravel layer 24, the filter layer 25 and the activated carbon layer 26 are placed in the card slot 275 of the filter box 21, and then the installation plate 271 is placed on the upper end of the filter box 21, and the fixing bolt 272 is screwed into the fixing hole 273 The mounting plate 271 is fixed to achieve the effect of limiting and fixing the sand and gravel layer 24, the filter screen layer 25 and the activated carbon layer 26. The mounting assembly 27 is provided to facilitate the disassembly, assembly and replacement of the sand and gravel layer 24, the filter screen layer 25 and the activated carbon layer 26. By providing the sealing assembly 3, when it is not necessary to feed through the opening 7, the sealing plate 33 is moved by the dial plate 34, and the rotating seat 32 at one end of the sealing plate 33 rotates on the fixing frame 31. After the sealing plate 33 rotates to the upper side of the opening 7, the opening 7 can be sealed. After the sealing plate 33 is opened, the support plate 35 can support the sealing plate 33. By providing the sealing assembly 3, the opening 7 can be sealed when it is not in use, so as to prevent dust and other impurities from falling into the texturing tank body 1 through the opening 7 when the opening 7 is not in use.

[0036] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A filtration device for draining liquid from a cleaning tank for texturing crystalline silicon, comprising a texturing tank body (1), an opening (7) provided on one side of the upper end of the texturing tank body (1), a control mechanism (6) provided on the other side of the upper end of the texturing tank body (1), a water inlet (5) provided on the lower side of one end of the texturing tank body (1), and a water outlet (4) provided on one side of the water inlet (5), characterized in that: A sealing component (3) is provided at a position corresponding to the opening (7) at the upper end of the texturing tank body (1), and a filtering component (2) is provided at a position corresponding to the water outlet (4) at one end of the texturing tank body (1).

2. The filtration device for draining liquid from a cleaning tank for crystal silicon texturing according to claim 1, characterized in that: The filter assembly (2) comprises a filter box (21), a transverse plate (22), a drainage pipe (23), a sand and gravel layer (24), a filter screen layer (25), an activated carbon layer (26) and an installation assembly (27), wherein a transverse plate (22) is provided at a position corresponding to the water outlet (4) on the lower side of one end of the texturing tank body (1), a filter box (21) is provided at the upper end of the transverse plate (22), a drainage pipe (23) is provided at the lower side of the filter box (21) away from one end of the texturing tank body (1), a sand and gravel layer (24) is provided inside the filter box (21), a filter screen layer (25) is provided on one side of the sand and gravel layer (24), an activated carbon layer (26) is provided on the other side of the filter screen layer (25), and an installation assembly (27) is provided at the upper end of the texturing tank body (1).

3. The filtration device for draining liquid from a cleaning tank for crystal silicon texturing according to claim 2, characterized in that: The mounting assembly (27) comprises a mounting plate (271), a fixing bolt (272), a fixing hole (273), a handle (274) and a slot (275), wherein the upper end of the filter box (21) is provided with a mounting plate (271), the upper end of the mounting plate (271) is provided with a handle (274), the mounting plate (271) and the filter box (21) are connected via a fixing bolt (272), the upper end of the filter box (21) is provided with a fixing hole (273) corresponding to the fixing bolt (272), and the lower end of the filter box (21) is provided with a slot (275) corresponding to the sand and gravel layer (24), the filter screen layer (25) and the activated carbon layer (26).

4. The filtration device for draining liquid from a cleaning tank for crystal silicon texturing according to claim 3, characterized in that: The lower end of the mounting plate (271) is bonded with a rubber pad by glue, and both sides of the mounting plate (271) are provided with through holes corresponding to the fixing bolts (272).

5. The drainage filtering device for a cleaning tank for crystal silicon texturing according to claim 1, characterized in that: The sealing assembly (3) comprises a fixing frame (31), a rotating seat (32), a sealing plate (33), a shifting plate (34) and a supporting plate (35), wherein two fixing frames (31) are provided at a position corresponding to the opening (7) at one end of the texturing tank body (1), a rotating seat (32) is provided between the two fixing frames (31), a sealing plate (33) is provided at one end of the rotating seat (32), a shifting plate (34) is provided at one end of the sealing plate (33), and a sealing plate (33) is provided on one side between the two fixing frames (31).

6. The filtration device for draining liquid from a cleaning tank for crystal silicon texturing according to claim 5, characterized in that: The rotating seat (32) and the fixed frame (31) are rotatably connected via an axle pin, and the rotating seat (32) and the sealing plate (33) are a welded integral structure.

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