Waste battery electrolyte filtering and impurity removing device

Abstract

The utility model relates to the technical field of battery recovery, in particular to a waste battery electrolyte filtering and impurity removing device. Comprising a settling tank, the settling tank is communicated with a filter cylinder through an upper infusion pump, the lower end of the filter cylinder is fixedly communicated with a lower infusion pump, a fixing rod is fixed in the filter cylinder, a fixing ring is fixed in the filter cylinder above the fixing rod, an inner cylinder is slidably and hermetically inserted in the filter cylinder above the fixing ring, the fixing ring limits the lower end of the inner cylinder, and a lower filter screen is fixed in the lower end of the inner cylinder; the connecting rod penetrates through the upper filter screen and the lower filter screen and is movably and hermetically connected with the lower filter screen, the lower end of the connecting rod is in threaded connection with the fixing rod, the upper filter screen is rotationally and hermetically connected with the connecting rod, and the upper end of the filter cartridge is detachably, fixedly and hermetically connected with a cover plate. According to the utility model, the recovered electrolyte can be precipitated in the precipitation cavity of the precipitation tank in advance, and the working pressure of the lower filter screen in the filter cartridge can be reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of battery recycling, in particular to a device for filtering and removing impurities from waste battery electrolyte. Background Art

[0002] After waste lead-acid batteries are crushed, substances such as electrolyte, lead grids, and plastic sheets will be produced. Among them, the electrolyte in waste lead-acid batteries contains a large amount of sulfuric acid, which has strong corrosiveness. If not treated, it will cause serious damage to the environment. At the same time, the sulfuric acid in the electrolyte of waste lead-acid batteries can be recycled after filtration, and solid impurities in the electrolyte need to be removed after the electrolyte is recycled.

[0003] A patent document with the application number CN202223033736.8 discloses a device for filtering and removing impurities from waste battery electrolyte. When this electrolyte filtering and impurity removing device works, first, the waste electrolyte is injected into the first filtering box body through the feed pipe. Large particle impurities such as plastic sheets in the waste electrolyte will be filtered and left on the filter plate. After the filtration is completed, the first waste discharge pipe is opened to discharge the impurities on the filter plate; the substances filtered by the first filtering box body are transported to the inside of the second filtering box body through the first liquid delivery pipe. At this time, the telescopic cylinder moves downward, gradually moving the pressure filter plate downward, and pressure filtration is achieved during the movement. After the pressure filtration is completed, the fourth electric valve is opened. At this time, the second liquid delivery pipe is located above the pressure filter plate, and the filtered solution is discharged into the third filtering box body; when waste needs to be cleared, the pressure filter plate is moved above the waste clearing plate. At this time, the pressure filter plate is in contact with the top of the waste clearing plate, and the waste clearing cylinder is opened to move to the right, so that the impurities below the pressure filter plate and at the bottom of the second filtering box body can be discharged through the second waste discharge pipe. When filtering the electrolyte in the second filtering box body, it is necessary to make the pressure filter plate move downward and perform pressure filtration on the electrolyte in the second filtering box body. During the process of removing impurities from the electrolyte, it is not convenient to continuously remove impurities from the electrolyte, so the impurity removal efficiency of the electrolyte is low. Summary of the Utility Model

[0004] The technical problem to be solved by the utility model is a device for filtering and removing impurities from waste battery electrolyte that can continuously perform suction filtration and impurity removal on the electrolyte. This device for filtering and removing impurities from waste battery electrolyte can perform pressure filtration on the intercepted impurities during the process of cleaning the intercepted impurities, and can reduce the content of electrolyte in the intercepted impurities.

[0005] In order to achieve the above purpose, the technical solution provided by the utility model is:

[0006] A device for filtering and removing impurities from the electrolyte of waste batteries, comprising a precipitation tank. The precipitation tank is connected to a filter cartridge through an upper suction pump. The lower end of the filter cartridge is fixedly connected to a lower suction pump. A fixed rod is fixed inside the filter cartridge. A fixed ring is fixed inside the filter cartridge above the fixed rod. An inner cylinder is slidably and sealingly inserted into the filter cartridge above the fixed ring. The fixed ring limits the lower end of the inner cylinder. A lower filter screen is fixed inside the lower end of the inner cylinder. An upper filter screen is slidably and sealingly connected inside the upper end of the inner cylinder. A connecting rod passes through the upper filter screen and the lower filter screen. The connecting rod is movably and sealingly connected to the lower filter screen. The lower end of the connecting rod is threadedly connected to the fixed rod. The upper filter screen is rotationally and sealingly connected to the connecting rod. A ring groove is formed on the inner wall of the filter cartridge outside the inner cylinder. The ring groove is connected to the liquid outlet pipe of the upper suction pump. A plurality of through holes are formed on the inner cylinder. The through holes are connected to the ring groove. The upper end of the filter cartridge is detachably, fixedly and sealingly connected with a cover plate.

[0007] Specifically, a partition cylinder is fixed inside the precipitation tank. The lower end of the partition cylinder is fixedly connected to the bottom of the precipitation tank. A precipitation chamber is formed between the partition cylinder and the precipitation tank. The lower end of the precipitation tank is fixed with an inlet pipe and an outlet pipe. Both the inlet pipe and the outlet pipe are connected to the precipitation chamber. The water inlet pipe of the upper suction pump extends into the partition cylinder.

[0008] Specifically, an inner rod is fixed inside the partition cylinder. The inner rod is fixedly connected to the water inlet pipe of the upper suction pump. A liquid level sensor is fixed at the lower end of the inner rod. The liquid level sensor is electrically connected to the upper suction pump and the lower suction pump through a controller.

[0009] Specifically, a filter ring is fixed inside the upper end of the precipitation chamber.

[0010] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0011] 1. The present utility model can make the recycled electrolyte precipitate in the precipitation chamber of the precipitation tank in advance, and can reduce the working pressure of the lower filter screen in the filter cartridge.

[0012] 2. By setting an upper suction pump to pump the electrolyte in the partition cylinder of the precipitation tank into the inner cylinder in the filter cartridge, starting the lower suction pump, the electrolyte in the inner cylinder can be suction-filtered under the filtering action of the lower filter screen, and continuous filtering and impurity removal of the electrolyte can be realized.

[0013] 3. When the inner cylinder is pulled out of the filter cartridge, the upper filter screen can approach the lower filter screen, and the upper filter screen and the lower filter screen can press-filter the impurities, and the content of the electrolyte in the impurities can be reduced. The impurities are pulled out of the filter cartridge together with the inner cylinder, which is convenient for removing the impurities in the inner cylinder.

[0014] 4. After the inner cylinder is pulled out of the filter cartridge, the upper filter screen and the lower filter screen are pulled out together, which is convenient for dredging the upper filter screen and the lower filter screen.

[0015] 5. By setting a filter ring, the filter ring can intercept the plastics floating on the upper end of the electrolyte. It can prevent plastic impurities from entering the upper suction pump and can effectively protect the upper suction pump. Brief Description of the Drawings

[0016] Figure 1 This is a schematic diagram of the present utility model.

[0017] Figure 2 This is a schematic diagram of the internal structure of the filter cartridge.

[0018] Figure 3 This is a schematic diagram of the inner cylinder.

[0019] Figure 4 This is a top view of the inner cylinder.

[0020] Figure 5 This is Figure 4 the sectional view taken along line A-A in

[0021] The names of the components in the drawings are as follows:

[0022] 1 sedimentation tank

[0023] 2 inlet pipe

[0024] 3 outlet pipe

[0025] 4 partition cylinder

[0026] 5 filter ring

[0027] 6 inner rod

[0028] 7 liquid level sensor

[0029] 8 upper liquid extraction pump

[0030] 9 filter cartridge

[0031] 10 lower liquid extraction pump

[0032] 11 fixing rod

[0033] 12 annular groove

[0034] 13 fixing ring

[0035] 14 inner cylinder

[0036] 15 lower filter screen

[0037] 16 upper filter screen

[0038] 17 lifting ring

[0039] 18 through hole

[0040] 19 connecting rod

[0041] 20 retaining ring. Detailed Description of the Preferred Embodiments

[0042] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments.

[0043] Embodiment 1: Refer to Figures 1 - 5 As shown, a device for filtering and removing impurities from the electrolyte of waste batteries includes a precipitation tank 1, and the precipitation tank 1 is communicated with a filter cylinder 9 through an upper suction pump 8.

[0044] A partition cylinder 4 is fixed in the precipitation tank 1. The lower end of the partition cylinder 4 is fixedly connected to the bottom of the precipitation tank 1. A precipitation chamber is formed between the partition cylinder 4 and the precipitation tank 1. An inlet pipe 2 and an outlet pipe 3 are fixed at the lower end of the precipitation tank 1. Both the inlet pipe 2 and the outlet pipe 3 are communicated with the precipitation chamber. The inlet water pipe of the upper suction pump 8 extends into the partition cylinder 4.

[0045] The upper end of the filter cylinder 9 is detachably and fixedly sealed and connected with a cover plate. The lower end of the filter cylinder 9 is fixedly communicated with a lower suction pump 10.

[0046] A fixing rod 11 is fixed in the filter cylinder 9. A fixing ring 13 is fixed in the filter cylinder 9 above the fixing rod 11. An inner cylinder 14 is slidably and sealingly inserted into the filter cylinder 9 above the fixing ring 13. The fixing ring 13 limits the lower end of the inner cylinder 14. A plurality of hanging rings 17 are fixed at the upper end of the inner cylinder 14.

[0047] A lower filter screen 15 is fixed inside the lower end of the inner cylinder 14. An upper filter screen 16 is slidably and sealingly connected inside the upper end of the inner cylinder 14. A connecting rod 19 penetrates through the upper filter screen 16 and the lower filter screen 15. The connecting rod 19 is movably and sealingly connected with the lower filter screen 15. The lower end of the connecting rod 19 is threadedly connected with the fixing rod 11. The upper filter screen 16 is rotatably and sealingly connected with the connecting rod 19. Retaining rings 20 are threadedly connected to the connecting rod 19 above and below the upper filter screen 16.

[0048] A ring groove 12 is formed on the inner wall of the filter cylinder 9 outside the inner cylinder 14. The ring groove 12 is communicated with the outlet pipe of the upper suction pump 8. A plurality of through holes 18 are formed in the inner cylinder 14. The through holes 18 are communicated with the ring groove 12.

[0049] An inner rod 6 is fixed in the partition cylinder 4. The inner rod 6 is fixedly connected with the inlet water pipe of the upper suction pump 8. A liquid level sensor 7 is fixed at the lower end of the inner rod 6. The liquid level sensor 7 is electrically connected to the upper suction pump 8 and the lower suction pump 10 through a controller.

[0050] The recovered electrolyte enters the precipitation chamber through the inlet pipe 2. As the liquid level of the electrolyte in the precipitation chamber continuously rises, the electrolyte in the precipitation chamber enters the partition cylinder 4 after passing over the upper end of the partition cylinder 4. The electrolyte entering the precipitation chamber can precipitate in the precipitation chamber, which can reduce the impurity content of the electrolyte entering the filter cylinder 9, thereby reducing the working pressure of the lower filter screen 15 and improving the filtering and impurity removal efficiency of the electrolyte. Opening the outlet pipe 3 can discharge the precipitate in the precipitation chamber.

[0051] When the liquid level of the electrolyte in the partition cylinder 4 approaches the inner rod 6, the liquid level sensor 7 sends a signal to the controller, and the controller starts the upper liquid pumping pump 8 and the lower liquid pumping pump 10. The upper liquid pumping pump 8 pumps the electrolyte in the partition cylinder 4 through the annular groove 12 and the through hole 18 to between the upper filter screen 16 and the lower filter screen 15 of the inner cylinder 14. After the electrolyte is filtered by the lower filter screen 15, it is pumped out by the lower liquid pumping pump 10. The lower liquid pumping pump 10 can continuously filter and remove impurities from the electrolyte in the filter cylinder 9, improving the efficiency of filtering and removing impurities from the electrolyte.

[0052] When it is necessary to remove the impurities in the inner cylinder 14, open the cover plate, and use the lifting device to lift the inner cylinder 14 upward from the filter cylinder 9 through the lifting ring 17. When the inner cylinder 14 moves upward in the filter cylinder 9, since the connecting rod 19 is threadedly connected to the fixed rod 11. Therefore, the connecting rod 19 slides relative to the lower filter screen 15, and the upper filter screen 16 gradually approaches the lower filter screen 15. During the process of the upper filter screen 16 approaching the lower filter screen 15, the impurities in the inner cylinder 14 can be pressure-filtered. After pressure-filtering the impurities, the content of the electrolyte in the impurities can be reduced.

[0053] After the upper filter screen 16 and the lower filter screen 15 pressure-filter the impurities in the inner cylinder 14, rotate the connecting rod 19 to separate the connecting rod 19 from the fixed rod 11. Subsequently, the inner cylinder 14 can be pulled out of the filter cylinder 9. After the inner cylinder 14 is pulled out of the filter cylinder 9, the upper filter screen 16 and the lower filter screen 15 are separated, and then the impurities in the inner cylinder 14 can be removed.

[0054] After the inner cylinder 14 is pulled out of the filter cylinder 9, the upper filter screen 16 and the lower filter screen 15 are pulled out of the filter cylinder 9 together. After removing the retaining ring 20 above the upper filter screen 16, the upper filter screen 16 can be pulled out of the inner cylinder 14, which is convenient for dredging the upper filter screen 16 and the lower filter screen 15.

[0055] Embodiment 2: On the basis of Embodiment 1, referring to Figure 1 As shown, a filter ring 5 is fixedly installed inside the upper end of the precipitation chamber.

[0056] By providing the filter ring 5, the filter ring 5 can intercept the plastic impurities on the liquid surface of the electrolyte in the precipitation chamber, can prevent the plastic impurities from entering the upper liquid pumping pump 8, and can effectively protect the upper liquid pumping pump 8.

[0057] The above are only the preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalent replacements, and improvements made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A device for filtering and removing impurities from the electrolyte of waste batteries, including a precipitation tank (1), the precipitation tank (1) is communicated with a filter cartridge (9) through an upper liquid extraction pump (8), and is characterized in that, The lower end of the filter cartridge (9) is fixedly connected and communicated with a lower liquid extraction pump (10). A fixing rod (11) is fixed inside the filter cartridge (9). A fixing ring (13) is fixed inside the filter cartridge (9) above the fixing rod (11). An inner cylinder (14) is slidably and sealingly inserted into the filter cartridge (9) above the fixing ring (13). The fixing ring (13) limits the lower end of the inner cylinder (14). A lower filter screen (15) is fixed inside the lower end of the inner cylinder (14). An upper filter screen (16) is slidably and sealingly connected inside the upper end of the inner cylinder (14). A connecting rod (19) penetrates through the upper filter screen (16) and the lower filter screen (15). The connecting rod (19) is movably and sealingly connected with the lower filter screen (15). The lower end of the connecting rod (19) is threadedly connected with the fixing rod (11). The upper filter screen (16) is rotatably and sealingly connected with the connecting rod (19). A ring groove (12) is formed on the inner wall of the filter cartridge (9) outside the inner cylinder (14). The ring groove (12) is communicated with the liquid outlet pipe of the upper liquid extraction pump (8). A plurality of through holes (18) are formed on the inner cylinder (14). The through holes (18) are communicated with the ring groove (12). The upper end of the filter cartridge (9) is detachably, fixedly and sealingly connected with a cover plate.

2. The filtering and impurity removing device for waste battery electrolyte according to claim 1, wherein, A plurality of hanging rings (17) are fixed at the upper end of the inner cylinder (14).

3. The waste battery electrolyte filtering and impurity removing device according to claim 1, wherein Blocking rings (20) are threadedly connected to the connecting rod (19) both above and below the upper filter screen (16).

4. The waste battery electrolyte filtering and impurity removing device according to claim 1, characterized in that, A separating cylinder (4) is fixed inside the sedimentation tank (1). The lower end of the separating cylinder (4) is fixedly connected with the bottom of the sedimentation tank (1). A sedimentation cavity is formed between the separating cylinder (4) and the sedimentation tank (1). An inlet pipe (2) and an outlet pipe (3) are fixed at the lower end of the sedimentation tank (1). Both the inlet pipe (2) and the outlet pipe (3) are communicated with the sedimentation cavity. The water inlet pipe of the upper liquid extraction pump (8) extends into the separating cylinder (4).

5. The waste battery electrolyte filtration and impurity removal device according to claim 4, wherein, An inner rod (6) is fixed inside the separating cylinder (4). The inner rod (6) is fixedly connected with the water inlet pipe of the upper liquid extraction pump (8).

6. The filtering and impurity removing device for waste battery electrolyte according to claim 5, characterized in that, A liquid level sensor (7) is fixed at the lower end of the inner rod (6). The liquid level sensor (7) is electrically connected to the upper liquid extraction pump (8) and the lower liquid extraction pump (10) through a controller.

7. The waste battery electrolyte filtration and impurity removal device according to claim 4, characterized in that, A filter ring (5) is fixed inside the upper end of the sedimentation cavity.

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