A high-efficiency device for removing impurities from broken silicon wafers

Abstract

The utility model relates to the technical field of the impurity removal and separation of broken silicon wafer, specifically is a kind of high -efficient broken silicon wafer impurity removal and separation device, the utility model includes two slope type plastic tank, fixed mounting has support between the bottom surface of two slope type plastic tank, support outer wall is fixedly connected with collection box, two slope type plastic tank inside are fixedly installed with wind shield, fixedly inserted with exhaust duct between the outer wall of two slope type plastic tank, the outer wall of exhaust duct is fixedly connected with the communicating pipe one in close middle position, the outer wall of exhaust duct is fixedly connected with a plurality of flexible hose, the utility model is set up wind collecting cover cooperation auxiliary mechanism etc., can effectively utilize wind power, compared with the fan blowing of existing, more save electric energy, save fan electricity, improve the efficiency and capacity of the drift separation broken silicon wafer, and convenient for staff to take out broken silicon wafer, and centralized transfer, further collection processing.

Description

Technical Field

[0001] This utility model relates to the field of silicon wafer impurity removal and sorting technology, specifically a high-efficiency silicon wafer impurity removal and sorting device. Background Technology

[0002] Currently, in the production of solar silicon wafers, it is necessary to cut the raw materials of solar silicon wafers into fragments using multi-wire cutting, clean and inspect the fragments, and then clean them again. After cleaning, a bleaching process is carried out to remove impurities.

[0003] In existing technologies, when sorting and removing impurities from broken silicon wafers, a sloping plastic tank is generally used. The broken silicon wafers are floated on the surface of the chemical solution, and multiple fans blow the broken silicon wafers onto the surface of the chemical solution, causing the broken silicon wafers to drift downwards into the silicon wafer collection bucket. Stones and other metals sink to the bottom, achieving the purpose of drifting and separating foreign objects. However, using multiple fans not only consumes a lot of electricity, but the air blown by the fans is also relatively dispersed, which cannot maximize the utilization of air power and results in low production efficiency. Utility Model Content

[0004] The purpose of this invention is to provide a highly efficient silicon wafer impurity removal and sorting device to solve the problems mentioned in the background art.

[0005] The objective of this utility model can be achieved through the following technical solutions:

[0006] A high-efficiency silicon wafer impurity removal and sorting device includes two inclined plastic troughs, a support fixedly installed between the bottom surfaces of the two inclined plastic troughs, a collection box fixedly connected to the outer wall of the support, windproof covers fixedly installed inside the two inclined plastic troughs, an exhaust pipe fixedly inserted between the outer walls of the two inclined plastic troughs, a connecting pipe fixedly connected to the outer wall of the exhaust pipe near the middle, several telescopic hoses fixedly connected to the outer wall of the exhaust pipe, and an air outlet pipe fixedly connected to the end of each of the telescopic hoses away from the exhaust pipe. An auxiliary mechanism is provided inside the two inclined plastic troughs and below the exhaust pipe. A filter basket is movably installed inside the collection box.

[0007] The auxiliary mechanism includes a connecting frame and several connecting rings. The connecting frame is fixedly installed inside the sloping plastic trough and located below the exhaust pipe. The several connecting rings are fixedly sleeved on the outer wall of the exhaust pipe. Several sliding grooves are opened through the bottom surface of the connecting frame near one side.

[0008] Preferably, each of the plurality of grooves is rotatably connected to a reciprocating screw, and one end of each of the plurality of reciprocating screws is fixedly connected to each other. Each of the plurality of reciprocating screws is fitted with a movable block. A connecting block is slidably connected to the inner wall of the connecting frame, and one end of the connecting block is fixedly connected to the movable block, and the other end of the connecting block is fixedly connected to the connecting ring.

[0009] Preferably, a motor is installed on the inner wall of the connecting frame, and the output end of the motor is connected to one end of one of the reciprocating lead screws.

[0010] Preferably, the outer wall of the collection box is connected to a flip cover by a hinge, and the outer wall of the flip cover is rotatably connected to a retaining plate near both sides by a shaft. The outer wall of the collection box is fixedly installed with an L-shaped connecting plate near both sides. The outer wall of the L-shaped connecting plate is provided with a fixing nail, and the outer wall of the retaining plate is provided with a fixing hole, and the fixing hole fits with the fixing nail.

[0011] Preferably, a support plate is fixedly connected to both inner side walls of the collection box near the bottom of the filter basket, and a number of filter holes are opened through the bottom of the filter basket.

[0012] Preferably, a drain pipe is fixedly connected to the outer wall of the collection box near the bottom.

[0013] Preferably, each of the two inclined plastic tanks is fixedly installed with an inlet pipe, and each of the two inlet pipes is fixedly installed with a connecting pipe II on its outer wall.

[0014] The beneficial effects of this utility model are:

[0015] 1. In this utility model, an air pump circulates air into the connecting pipe and then into the exhaust pipe. The air is then blown out by various telescopic hoses and the exhaust pipe onto the floating surface of the silicon wafers in the sloping plastic trough. With the help of the reciprocating screw, movable block, and connecting block in the auxiliary mechanism, the exhaust pipe can be driven to move back and forth, expanding the blowing range and further improving the uniformity of the blowing. At the same time, the windproof cover covers the upper surface of the sloping plastic trough, transforming the original sloping plastic trough into a sloping plastic box trough shape, preventing wind leakage and maximizing the wind force that blows the silicon wafers to float and separate. Through the above operation, wind power is effectively utilized, saving more energy compared to existing fan blowing, saving fan power consumption, and improving the efficiency and production capacity of floating and separating silicon wafers.

[0016] 2. This utility model releases the fixation of the flip cover by rotating the fixing nail out of the L-shaped connecting plate and rotating the card plate out of the L-shaped connecting plate. The flip cover can be flipped open from the collection box, releasing the obstruction on one side of the filter basket. Then the filter basket can be moved along the upper surface of the two supporting plates and removed from the collection box, making it convenient for workers to take out the broken silicon wafers and transfer them for further collection and processing. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This utility model Figure 1 Enlarged view of point A in the middle;

[0020] Figure 3 This is a schematic diagram of the sloping plastic trough and collection box in this utility model;

[0021] Figure 4 This is a schematic diagram of the exhaust pipe and windproof cover in this utility model;

[0022] Figure 5 This is a schematic diagram of the auxiliary mechanism and exhaust pipe in this utility model;

[0023] Figure 6 This is a partial structural schematic diagram of the auxiliary mechanism in this utility model;

[0024] Figure 7 This is a cross-sectional view of the collection box in this utility model.

[0025] The attached figures are labeled as follows:

[0026] 1. Sloping plastic tank; 2. Windproof cover; 3. Exhaust pipe; 4. Connecting pipe one; 5. Collection box; 6. Flip-top; 7. Filter basket; 8. Connecting pipe two; 9. Liquid inlet pipe; 10. Connecting block; 11. Air outlet pipe; 12. Connecting frame; 13. Telescopic flexible hose; 14. Slide groove; 15. Movable block; 16. Reciprocating screw; 17. Connecting ring; 18. Bearing plate; 19. Clamping plate; 20. L-shaped connecting plate; 21. Fixing nail; 22. Bracket. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0028] A highly efficient silicon wafer impurity removal and sorting device, such as Figures 1-7 As shown, the system includes two sloping plastic troughs 1, with a bracket 22 fixedly installed between the bottom surfaces of the two sloping plastic troughs 1. A collection box 5 is fixedly connected to the outer wall of the bracket 22. Windproof covers 2 are fixedly installed inside both sloping plastic troughs 1. An exhaust pipe 3 is fixedly inserted between the outer walls of the two sloping plastic troughs 1. A connecting pipe 4 is fixedly connected to the outer wall of the exhaust pipe 3 near the middle. Several flexible hoses 13 are fixedly connected to the outer wall of the exhaust pipe 3. An air outlet pipe 11 is fixedly connected to the end of each flexible hose 13 away from the exhaust pipe 3. An auxiliary mechanism is provided inside both sloping plastic troughs 1 and below the exhaust pipe 3. A filter basket 7 is movably installed inside the collection box 5. The auxiliary mechanism includes a connecting frame 12 and several connecting rings 17. The connecting frame 12 is fixedly installed inside the sloping plastic trough 1 and below the exhaust pipe 3. Several connecting rings 17 are fixedly sleeved on the outer wall of the air outlet pipe 11. Several sliding grooves 14 are opened through one side of the bottom surface of the connecting frame 12.

[0029] Two inclined plastic tanks 1 form a group. A pneumatic pump is installed near each group of inclined plastic tanks 1, and the output end of the pneumatic pump is connected to one end of the connecting pipe 4. The pneumatic pump provides stable air pressure, and the air pressure is controlled by a valve.

[0030] Several sliding grooves 14 are rotatably connected to reciprocating screws 16, and one end of each reciprocating screw 16 is fixedly connected to the others. Each reciprocating screw 16 is fitted with a movable block 15. A connecting block 10 is slidably connected to the inner wall of the connecting frame 12, and one end of the connecting block 10 is fixedly connected to the movable block 15, while the other end of the connecting block 10 is fixedly connected to the connecting ring 17. A motor is installed on the inner wall of the connecting frame 12, and the output end of the motor is connected to one end of one of the reciprocating screws 16. The inner wall of the movable block 15 and the reciprocating screw 16 is provided with a thread that matches the reciprocating screw 16. When the reciprocating screw 16 rotates, under the cooperation of the thread and the limitation of the sliding groove 14, the movable block 15 can be driven to move back and forth in the sliding groove 14.

[0031] Both inclined plastic tanks 1 are equipped with inlet pipes 9, and both inlet pipes 9 are equipped with connecting pipes 2 8. The connecting pipes 2 8 and the inlet pipes 9 are used to pass the medicine into the tanks 1.

[0032] In use, the raw material containing broken silicon wafers is put into the inclined plastic tank 1, and the chemical solution is introduced into the inclined plastic tank 1 through the connecting pipe 2 8 and the liquid inlet pipe 9, so that the material mixed with the chemical solution floats along the inclined plastic tank 1. At the same time, the air pump vents into the connecting pipe 4 and into the exhaust pipe 3, and blows the broken silicon wafers on the floating surface in the inclined plastic tank 1 evenly through the various telescopic hoses 13 and the air outlet pipe 11, helping the broken silicon wafers to flow into the collection box 5 quickly. At the same time, the upper surface of the inclined plastic tank is sealed by the windproof cover 2, changing the original inclined plastic tank 1 into an inclined plastic box trough shape to prevent wind leakage and maximize the use of the wind force that blows the broken silicon wafers to float and separate. The process improves the efficiency of separating foreign matter by allowing crushed stones and other metals in the raw materials to settle to the bottom. Simultaneously, while air is blowing through each outlet pipe 11, a motor drives one of the reciprocating screws 16 to rotate, which in turn drives several other reciprocating screws 16 to rotate simultaneously. Each reciprocating screw 16 moves back and forth along its respective groove 14, thereby causing the connecting ring 17 connected by the connecting block 10 to move back and forth, and causing the outlet pipe 11 to move back and forth, expanding the blowing range and further improving the uniformity of the blowing. Through the above operation, wind power is effectively utilized, saving more energy compared to existing fan blowing, thus saving fan power consumption and improving the efficiency and production capacity of drifting and separating broken silicon wafers.

[0033] The outer wall of the collection box 5 is connected to a flap 6 by a hinge. The outer wall of the flap 6 is connected to a clamping plate 19 by a shaft near both sides. The outer wall of the collection box 5 is fixedly installed with an L-shaped connecting plate 20 near both sides. The outer wall of the L-shaped connecting plate 20 is inserted with a fixing nail 21. The outer wall of the clamping plate 19 is provided with a fixing hole, and the fixing hole fits with the fixing nail 21.

[0034] The inner walls of the collection box 5 are fixedly connected to the support plate 18 near the bottom of the filter basket 7. Several filter holes are opened through the bottom of the filter basket 7. The outer wall of the collection box 5 is fixedly connected to the drain pipe near the bottom.

[0035] Specifically, after the broken silicon wafers quickly flow into the collection box 5, they are collected and carried by the filter basket 7. The chemical solution attached to the broken silicon wafers can fall through the various filter holes to the bottom of the collection box 5 and be discharged through the drain pipe. At this time, the fixing nail 21 is turned out from the L-shaped connecting plate 20, and the clamping plate 19 is rotated 90° so that the clamping plate 19 is turned out from the L-shaped connecting plate 20, which can release the fixation on the flip cover 6. At this time, the flip cover 6 can be flipped open from the collection box 5 to release the obstruction on one side of the filter basket 7. Then the filter basket 7 can be moved along the upper surface of the two supporting plates 18 to remove the filter basket 7 from the collection box 5, so that the staff can take out the broken silicon wafers and transfer them for further collection and processing.

[0036] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A high-efficiency silicon wafer impurity removal and sorting device, comprising two inclined plastic troughs (1), characterized in that, A bracket (22) is fixedly installed between the bottom surfaces of the two inclined plastic troughs (1). A collection box (5) is fixedly connected to the outer wall of the bracket (22). A windproof cover (2) is fixedly installed inside the two inclined plastic troughs (1). An exhaust pipe (3) is fixedly inserted between the outer walls of the two inclined plastic troughs (1). A connecting pipe (4) is fixedly connected to the outer wall of the exhaust pipe (3) near the middle. Several telescopic hoses (13) are fixedly connected to the outer wall of the exhaust pipe (3). An air outlet pipe (11) is fixedly connected to the end of the several telescopic hoses (13) away from the exhaust pipe (3). An auxiliary mechanism is provided inside the two inclined plastic troughs (1) and below the exhaust pipe (3). A filter basket (7) is movably installed inside the collection box (5). The auxiliary mechanism includes a connecting frame (12) and several connecting rings (17). The connecting frame (12) is fixedly installed inside the inclined plastic trough (1) and located below the exhaust pipe (3). Several connecting rings (17) are fixedly sleeved on the outer wall of the exhaust pipe (11). Several sliding grooves (14) are opened through the bottom surface of the connecting frame (12) near one side.

2. The high-efficiency silicon wafer impurity removal and sorting device according to claim 1, characterized in that, A reciprocating screw (16) is rotatably connected inside each of the several sliding grooves (14), and one end of each of the several reciprocating screws (16) is fixedly connected to each other. A movable block (15) is sleeved on the outside of each of the several reciprocating screws (16). A connecting block (10) is slidably connected to the inner wall of the connecting frame (12), and one end of the connecting block (10) is fixedly connected to the movable block (15), and the other end of the connecting block (10) is fixedly connected to the connecting ring (17).

3. The high-efficiency silicon wafer impurity removal and sorting device according to claim 2, characterized in that, The inner wall of the connecting frame (12) is equipped with a motor, and the output end of the motor is connected to one end of one of the reciprocating screws (16).

4. The high-efficiency silicon wafer impurity removal and sorting device according to claim 1, characterized in that, The outer wall of the collection box (5) is connected to a flap (6) by a hinge. The outer wall of the flap (6) is connected to a clamping plate (19) by a shaft near both sides. The outer wall of the collection box (5) is fixedly installed with an L-shaped connecting plate (20) near both sides. The outer wall of the L-shaped connecting plate (20) is inserted with a fixing nail (21). The outer wall of the clamping plate (19) is provided with a fixing hole, and the fixing hole matches the fixing nail (21).

5. The high-efficiency silicon wafer impurity removal and sorting device according to claim 1, characterized in that, The collection box (5) has a support plate (18) fixedly connected to both inner side walls near the bottom of the filter basket (7), and the filter basket (7) has several filter holes through the bottom.

6. The high-efficiency silicon wafer impurity removal and sorting device according to claim 1, characterized in that, A drain pipe is fixedly connected to the outer wall of the collection box (5) near the bottom.

7. The high-efficiency silicon wafer impurity removal and sorting device according to claim 1, characterized in that, Both of the inclined plastic tanks (1) are fixedly installed with inlet pipes (9), and both of the inlet pipes (9) are fixedly installed with connecting pipes (8) on their outer walls.

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