A diaphragm washing apparatus

Abstract

The utility model relates to a kind of diaphragm washing equipment in the technical field of battery diaphragm, including the groove body two end surfaces respectively being equipped with discharge gate and feeding port, the middle part of inner chamber is equipped with a partition, the partition separates into spray chamber and soaking chamber, the side close to feeding port is spray chamber, the side close to feeding port is soaking chamber, the height of partition is below discharge gate and feeding port, the horizontal height of inner chamber located discharge gate and feeding port is equipped with several rotatable first transmission roller, the bottom of spray chamber and soaking chamber is equipped with several rotatable first transmission roller, the side close to spray chamber of inner chamber is equipped with pipeline spraying structure, pipeline spraying structure is connected with spray chamber by circulation component and is conducted, can be realized in the same groove to battery diaphragm is sequentially sprayed and soaked, when again assembling diaphragm washing production line, the investment of diaphragm washing equipment can be reduced, the overall structure of diaphragm washing production line is reduced, and the complete cleaning process of battery diaphragm can be guaranteed simultaneously.

Description

Technical Field

[0001] This utility model relates to the field of battery separator technology, and in particular to a separator washing device. Background Technology

[0002] The battery separator is a membrane material placed between the positive and negative electrodes of a battery. It is a very critical part of the battery and has a direct impact on battery safety and cost. Its main functions are to isolate the positive and negative electrodes and prevent electrons in the battery from passing through freely, while allowing ions in the electrolyte to pass freely between the positive and negative electrodes.

[0003] In current membrane manufacturing processes, dichloromethane is typically used to clean the membrane. According to existing Chinese utility model patent CN210995511U, a membrane washing system extraction tank and an extraction tank spray structure are described. The extraction tank spray structure includes a spray assembly and a circulation assembly disposed within the extraction tank. This spray structure allows for more thorough extraction of the lithium battery membrane within the extraction tank, improving production efficiency.

[0004] Existing diaphragm washing equipment typically employs immersion and spray modes. The immersion mode requires a large amount of dichloromethane, and its effectiveness is unsatisfactory. The conventional spray mode has an overly simple structure; the sprayed dichloromethane cannot adequately cover the diaphragm surface, and the unused dichloromethane cannot be recycled, resulting in significant waste. Therefore, existing diaphragm washing production lines require alternating connections between immersion and spray modes to ensure sufficient dichloromethane cleaning of the battery diaphragm. However, this configuration results in a large overall structure for the diaphragm washing production line, occupying a significant amount of factory space. Therefore, there is an urgent need to develop a diaphragm washing device that meets practical application requirements. Utility Model Content

[0005] The purpose of this invention is to provide a diaphragm washing device to solve the problem that existing diaphragm washing devices only have soaking or spraying modes, resulting in a large overall structure of diaphragm washing production lines that alternate between soaking and spraying modes.

[0006] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: A diaphragm washing device includes a tank body. The interior of the tank body is an inner cavity for conducting diaphragm material. A discharge port and a feed port are respectively opened on both ends of the tank body. A partition is provided in the middle of the inner cavity, dividing the inner cavity into a spray chamber and a soaking chamber. The side near the feed port is the spray chamber, and the side near the feed port is the soaking chamber. The height of the partition is below the discharge port and the feed port. Several rotatable first transmission rollers are provided in the inner cavity at the same level as the discharge port and the feed port. Several rotatable first transmission rollers are provided at the bottom of the spray chamber and the soaking chamber. A pipe spray structure is provided on the side of the inner cavity near the spray chamber, and the pipe spray structure is connected to the spray chamber through a circulation component.

[0007] As a further embodiment of the above description, the pipeline spraying structure includes a spray pipe and several nozzles. The spray pipe is horizontally arranged inside the spraying chamber and is parallel to the first drive roller and the second drive roller.

[0008] As a further embodiment of the above description, the circulation assembly includes a water pump, a filter, and a connecting hose. The bottom side wall of the spray chamber is provided with an outlet flange. One end of the water pump is connected to the spray chamber through the outlet flange, and the other end of the water pump is connected to the filter. The top side wall of the spray chamber is provided with an inlet flange. One end of the spray pipe is connected to the inlet flange, one end of the connecting hose is connected to the filter, and the other end of the connecting hose is connected to the inlet flange.

[0009] In the above description, as a further embodiment, the spray pipes are arranged horizontally along the radial direction on the side of the first drive roller near the feed inlet, and the nozzles are inclined toward the surface of the first drive roller.

[0010] As a further embodiment of the above description, the spray pipe is provided with several supports in the middle, and the spray pipe is fixedly connected to the inside of the feed inlet through the supports. The nozzles are inclined toward the first drive roller on the side closer to the feed inlet.

[0011] In the above description, as a further option, several nozzles are arranged in a linear array on the side wall of the spray pipe, the spray pipe is a hollow structure, and the nozzles and the spray pipe are connected.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: By providing a partition in the middle of the inner cavity of the tank body, the partition divides the inner cavity into a spray chamber and a soaking chamber. The side near the feed inlet is the spray chamber, and the side near the feed inlet is the soaking chamber. At the same time, a pipeline spraying structure is provided on the side of the inner cavity near the spray chamber. The pipeline spraying structure is connected to the spray chamber through a circulation component. It is possible to spray and soak the battery separator in the same tank in sequence. When assembling the separator washing production line, the investment in separator washing equipment can be reduced, the overall structure of the separator washing production line can be reduced, and the complete cleaning process of the battery separator can be guaranteed. Attached Figure Description

[0013] Figure 1 This is a three-dimensional structural diagram of a diaphragm washing device described in this embodiment; Figure 2 This is a schematic diagram of the internal structure of a diaphragm washing device described in this embodiment; Figure 3 for Figure 1 A magnified schematic diagram of the structure of part A in the diagram; Figure 4 for Figure 2 A magnified schematic diagram of the partial structure of B in the diagram; In the diagram: 1-tank body, 11-spray chamber, 12-soaking chamber, 2-outlet, 3-inlet, 41-first drive roller, 42-second drive roller, 5-spray pipe, 51-nozzle, 6-circulation assembly, 61-water pump, 62-filter, 63-conducting hose, 64-support, 7-partition plate, 8-inlet flange, 9-outlet flange. Detailed Implementation

[0014] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0015] For this embodiment, please refer to Figures 1-4 The specific implementation of the diaphragm washing equipment includes a tank body 1. The interior of the tank body 1 is an inner cavity for conducting diaphragm material. The two ends of the tank body 1 are respectively provided with a discharge port 2 and a feed port 3. A partition 7 is provided in the middle of the inner cavity, which divides the inner cavity into a spray chamber 11 and a soaking chamber 12. The side near the feed port 3 is the spray chamber 11, and the side near the feed port 3 is the soaking chamber 12. The height of the partition 7 is below the discharge port 2 and the feed port 3. Several rotatable first transmission rollers 41 are provided in the inner cavity at the horizontal height of the discharge port 2 and the feed port 3. Several rotatable first transmission rollers 41 are provided at the bottom of the spray chamber 11 and the soaking chamber 12. A pipe spray structure is provided in the inner cavity near the spray chamber 11. The pipe spray structure is connected to the spray chamber 11 through a circulation component 6.

[0016] By providing a partition 7 in the middle of the inner cavity of the tank body 1, the partition 7 divides the inner cavity into a spray chamber 11 and an immersion chamber 12. The side near the feed inlet 3 is the spray chamber 11, and the side near the feed inlet 3 is the immersion chamber 12. At the same time, a pipeline spraying structure is provided on the side of the inner cavity near the spray chamber 11. The pipeline spraying structure is connected to the spray chamber 11 through the circulation component 6. This allows the battery separator to be sprayed and immersed sequentially in the same tank. When assembling the separator washing production line, the investment in separator washing equipment can be reduced, the overall structure of the separator washing production line can be reduced, and the complete cleaning process of the battery separator can be guaranteed.

[0017] Specifically, such as Figure 4 As shown, the pipeline spraying structure includes a spray pipe 5 and several nozzles 51. The spray pipe 5 is horizontally arranged inside the spray chamber 11, and the spray pipe 5 is parallel to the first transmission roller 41 and the second transmission roller 42. The circulation component 6 includes a water pump 61, a filter 62, and a connecting hose 63. The bottom side wall of the spray chamber 11 is provided with a water outlet flange 9. One end of the water pump 61 is connected to the spray chamber 11 through the water outlet flange 9, and the other end of the water pump 61 is connected to the filter 62. The top side wall of the spray chamber 11 is provided with a water inlet flange 8. One end of the spray pipe 5 is connected to the water inlet flange 8, one end of the connecting hose 63 is connected to the filter 62, and the other end of the connecting hose 63 is connected to the water inlet flange 8.

[0018] In further proposals, such as Figure 2 and Figure 4 As shown, the spray pipe 5 is arranged horizontally along the radial direction on the side of the first drive roller 41 near the feed inlet 3. The nozzles 51 are inclined towards the surface of the first drive roller 41. Several supports 64 are provided in the middle of the spray pipe 5. The spray pipe 5 is fixedly connected to the inside of the feed inlet 3 through the supports 64. The nozzles 51 are inclined towards the first drive roller 41 near the feed inlet 3. Several nozzles 51 are arranged in a linear array on the side wall of the spray pipe 5. The spray pipe 5 is a hollow structure. The nozzles 51 are connected to the spray pipe 5.

[0019] Several nozzles 51 are arranged radially and horizontally on one side of the first drive roller 41 through the spray pipe 5. The nozzles 51 are inclined towards the surface of the first drive roller 41, so that the spray direction of the nozzles 51 can be concentrated on the surface of the first drive roller 41. This can effectively transmit the impact force of the water flow to the first drive roller 41, avoid the water flow impacting the diaphragm and causing shaking, and ensure the stability of the diaphragm transportation.

[0020] The working process of a diaphragm washing device is as follows: Dichloromethane is placed inside the soaking chamber 12, and simultaneously, dichloromethane is placed inside the spray chamber 11 to submerge the water outlet flange 9. The dichloromethane level in the soaking chamber 12 is higher than that in the spray chamber 11. At the same time, the water pump 61 is started to draw dichloromethane into the spray pipe 5 along the water inlet flange 8, the water pump 61, the filter 62, and the connecting hose 63. The spray direction of the nozzle 51 can be concentrated on the surface of the first drive roller 41, which can effectively transmit the impact force of the water flow to the first drive roller 41. On the one hand, the surface of the battery diaphragm is washed by the impact of the water flow, while on the other hand, the water flow impact on the diaphragm causes shaking, thus ensuring the stability of the diaphragm transportation. By continuously rotating the first drive roller 41 and the second drive roller 42, the battery separator is transported into the soaking chamber 12, so that the battery separator can be soaked and cleaned in the soaking chamber 12.

[0021] The above description, in conjunction with specific preferred embodiments, provides a further detailed explanation of the present invention. It should not be construed that the specific implementation of the present invention is limited to these descriptions. For those skilled in the art, various simple deductions or substitutions can be made without departing from the concept of the present invention, and all such modifications and substitutions should be considered within the scope of protection of the present invention.

Claims

1. A diaphragm washing device, comprising a tank body, wherein the interior of the tank body is an inner cavity for conducting diaphragm material, and an outlet and an inlet are respectively provided on both ends of the tank body, characterized in that: A partition is provided in the middle of the inner cavity, which divides the inner cavity into a spray chamber and a soaking chamber. The side near the inlet is the spray chamber, and the side near the inlet is the soaking chamber. The height of the partition is below the outlet and inlet. Several rotatable first transmission rollers are provided in the inner cavity at the same level as the outlet and inlet. Several rotatable first transmission rollers are provided at the bottom of the spray chamber and the soaking chamber. A pipeline spraying structure is provided on the side of the inner cavity near the spray chamber. The pipeline spraying structure is connected to the spray chamber through a circulation component.

2. The diaphragm washing device according to claim 1, characterized in that: The pipeline spraying structure includes a spray pipe and several nozzles. The spray pipe is horizontally arranged inside the spraying chamber and is parallel to the first and second drive rollers.

3. The diaphragm washing device according to claim 2, characterized in that: The circulation assembly includes a water pump, a filter, and a connecting hose. The bottom side wall of the spray chamber is provided with a water outlet flange. One end of the water pump is connected to the spray chamber through the water outlet flange, and the other end of the water pump is connected to the filter. The top side wall of the spray chamber is provided with a water inlet flange. One end of the spray pipe is connected to the water inlet flange, one end of the connecting hose is connected to the filter, and the other end of the connecting hose is connected to the water inlet flange.

4. A diaphragm washing device according to claim 2, characterized in that: The spray pipes are arranged horizontally along the radial direction on the side of the first drive roller near the feed inlet, and the nozzles are inclined toward the surface of the first drive roller.

5. A diaphragm washing device according to claim 4, characterized in that: The spray pipe is provided with several supports in the middle. The spray pipe is fixedly connected to the inside of the feed inlet through the supports. The nozzles are inclined towards the first drive roller on the side closer to the feed inlet.

6. A diaphragm washing device according to claim 2, characterized in that: Several nozzles are arranged in a linear array on the side wall of the spray pipe. The spray pipe has a hollow structure, and the nozzles are connected to the spray pipe.

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