Multistage overflow device for wet-process lithium battery diaphragm extraction

Abstract

The utility model discloses a multi-stage overflow device for wet-process lithium battery diaphragm extraction, and particularly relates to the field of lithium battery diaphragm production. The multi-stage overflow device comprises a device main body, and an overflow box is embedded and connected into the device main body; a liquid inlet control valve is connected to one side of the top of the overflow box in an embedded mode, a valve rod is connected to the middle of the interior of the liquid inlet control valve in a lap joint mode, and a liquid inlet is connected to the other side of the top of the overflow box in an embedded mode. When the device is used, the overflow box is embedded and distributed in the device main body, the liquid inlet control valve and the liquid inlet are embedded in the top of the overflow box in a lap joint mode, extraction overflow meeting appropriate requirements is formed, and the overflow liquid main pipe, the first overflow cavity, the second overflow cavity and the confluence cavity are distributed in the overflow box, so that multi-stage overflow extraction is effectively carried out; after multi-stage overflow operation is carried out, drainage and precipitation are carried out through a liquid drainage pump at the bottom, extraction is carried out in cooperation with a liquid outlet pipe opening at the bottom, overall functional elements are distributed and arranged up and down, and the multi-stage efficiency of overflow is improved.

Description

Technical Field

[0001] The utility model relates to the field of lithium battery diaphragm production, and more specifically, to a multi-stage overflow device for wet-process lithium battery diaphragm extraction. Background Art

[0002] During the white oil extraction process of wet-process lithium battery diaphragms, the diaphragms containing white oil enter the diaphragm drying device after being extracted by the extracting liquid. The diaphragms carrying white oil undergo the extraction action of the extracting liquid in the extracting liquid, which can extract the white oil in the diaphragm and retain it in the extracting liquid. As the extraction action continues, the concentration of white oil in the extracting liquid increases, affecting the extraction effect of the diaphragm containing white oil. Since the density of white oil is lower than that of the extracting liquid, the purity of the extracting liquid can be improved and updated through the overflow action of the upper liquid surface, thereby ensuring that the extraction effect of the diaphragm meets the standard control;

[0003] After searching, the existing patent (application number: 202111306544.7) discloses a multi-stage overflow device for wet-process lithium battery diaphragm extraction, including a trough body with a diaphragm drive roller inside, a liquid inlet pipe for introducing the extraction liquid into the trough body, and an overflow liquid pipe for discharging the overflow liquid in the trough body. An overflow port is opened at the upper position of one side of the trough body. There are at least two trough bodies, and each trough body is arranged in sequence along the diaphragm transmission direction. An overflow channel for the overflow liquid to pass through and a diaphragm channel for the diaphragm to pass through are provided between adjacent trough bodies. The overflow channel is connected to the wall of the upper trough body and the overflow port of the next trough body. The diaphragm channel is located above the overflow channel; the utility model adopts multiple overflow troughs by setting up, and the diaphragm passes through each overflow trough in turn. The overflow channel can connect the various troughs in series to form a step-by-step overflow method. The driving mechanism drives the confluence trough to move up and down, and the lifting connecting rod controls the upward movement of the lower sliding part. The driving mechanism drives the confluence trough to move downward. When the confluence trough reaches the lower stroke limit, the sliding sealing plate moves downward to open the overflow port, realizing step-by-step overflow; when the sliding sealing plate moves upward to close the overflow port, the overflow channel is closed, thereby canceling the step-by-step overflow function between the troughs. In the process of realizing the utility model, the inventor found that the existing technology has the following problems:

[0004] This type of overflow device has poor functionality, its internal overflow auxiliary structure is relatively imperfect, the structure is relatively complex and inconvenient, and its overflow effect is not obvious, which leads to low efficiency of multi-stage overflow and reduces the overflow practicality of the device;

[0005] Therefore, in order to solve the above problems, a multi-stage overflow device for wet lithium battery diaphragm extraction is proposed. Utility Model Content

[0006] In order to overcome the above-mentioned defects of the prior art, the present invention provides a multi-stage overflow device for wet-process lithium battery diaphragm extraction to solve the problems raised in the above-mentioned background technology.

[0007] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a multi-stage overflow device for wet-process lithium battery diaphragm extraction, comprising a device main body, wherein an overflow box is embedded and connected inside the device main body; a liquid inlet control valve is embedded and connected on one side of the top of the overflow box, and a valve stem is overlapped and connected to the middle part of the internal portion of the liquid inlet control valve; a liquid inlet is embedded and connected on the other side of the top of the overflow box, a partition fixing plate is overlapped and connected on one side of the surface of the overflow box, an overflow liquid main pipe is overlapped and connected inside the overflow box, a first overflow chamber is overlapped and connected to the bottom of the overflow liquid main pipe, a second overflow chamber is overlapped and connected to the bottom of the first overflow chamber, a confluence chamber is overlapped and connected to the bottom of the second overflow chamber, a drainage pump is overlapped and connected to the overflow control valve on both sides of the device main body, and a second valve stem is overlapped and connected to the middle part of the overflow control valve.

[0008] Preferably, the bottom of the liquid discharge pump is overlapped and connected to a liquid outlet.

[0009] Preferably, an embedded mounting plate is embedded and connected directly in front of the device body.

[0010] Preferably, the outer wall of the lower half of the liquid inlet control valve is embedded in the upper half of the inner wall of the overflow box, and forms a left-right structure with the liquid inlet on one side.

[0011] Preferably, the overflow liquid main pipe, the first overflow chamber, the second overflow chamber and the confluence chamber are arranged in an upper and lower structure and are all distributed on the inner wall of the overflow box.

[0012] Preferably, the overflow control valves are embedded and distributed on both sides of the device body, and there are four of them, which are symmetrically distributed on the left and right.

[0013] Preferably, the liquid outlet pipe is larger at the top and smaller at the bottom, and is distributed left and right, and the overflow box at the top is an up-down structure.

[0014] Preferably, the embedded mounting plate is in a longitudinal "concave" shape, and is embedded in the outer walls on both sides and the inner wall of the device body to form a nested assembly structure.

[0015] The technical effects and advantages of this utility model are:

[0016] Compared with the existing technology, this type of wet-process lithium battery diaphragm extraction multi-stage overflow device is in. When in use, the overflow box is embedded in the interior of the device body to facilitate overflow operations, and the top of the overflow box is overlapped and embedded with a liquid inlet control valve and a liquid inlet to form an appropriate extraction overflow. The overflow box is internally distributed with an overflow liquid main pipe, a first overflow chamber, a second overflow chamber, and a confluence chamber to effectively perform multi-stage overflow extraction, improve the overflow work efficiency, and then after the multi-stage overflow operation, the drainage pump at the bottom is used for drainage and sedimentation, and then the bottom liquid outlet is used again for extraction. The overall functional components are distributed up and down, which improves the multi-stage efficiency of the overflow and is more convenient for later extraction and discharge. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic structural diagram of the utility model as a whole.

[0018] Figure 2 It is a front view structural schematic diagram of the entire utility model.

[0019] Figure 3 It is a structural schematic diagram of the cross section of the overall embedded mounting plate of the present invention.

[0020] Figure 4 This is an enlarged structural diagram of point A of the overall outer shell box of the present invention.

[0021] The figures are marked as follows: 1. Device body; 2. Overflow box; 3. Liquid inlet control valve; 4. Liquid inlet; 5. Partition fixing plate; 6. Embedded mounting plate; 7. Valve stem; 8. Overflow liquid main pipe; 9. First overflow chamber; 10. Second overflow chamber; 11. Confluence chamber; 12. Liquid discharge pump; 13. Liquid outlet; 14. Overflow control valve; 15. Second valve stem. DETAILED DESCRIPTION

[0022] 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. Example

[0023] As attached Figure 1-4The multi-stage overflow device for wet-process lithium battery diaphragm extraction shown in FIG2 includes a device body 1, in which an overflow box 2 is embedded and connected; a liquid inlet control valve 3 is embedded and connected on one side of the top of the overflow box 2, and a valve stem 7 is overlapped and connected to the middle part of the internal portion of the liquid inlet control valve 3; a liquid inlet 4 is embedded and connected on the other side of the top of the overflow box 2; a partition fixing plate 5 is overlapped and connected to one side of the surface of the overflow box 2; an overflow liquid main pipe 8 is overlapped and connected to the inside of the overflow box 2; the bottom of the overflow liquid main pipe 8 is overlapped and connected to a first overflow chamber 9; the bottom of the first overflow chamber 9 is overlapped and connected to a second overflow chamber 10; the bottom of the second overflow chamber 10 is overlapped and connected to a confluence chamber 11; the bottom of the overflow box 2 is overlapped and connected to a drainage pump 12; overflow control valves 14 are embedded and connected on both sides of the device body 1; the middle part of the overflow control valve 14 is overlapped and connected to a second valve stem 15; and the bottom of the drainage pump 12 is overlapped and connected to a liquid outlet pipe 13.

[0024] Among them: the overflow box 2 is embedded in the interior of the device body 1 to facilitate overflow operations, and the top of the overflow box is overlapped and embedded with a liquid inlet control valve 3 and a liquid inlet 4 to form an extraction overflow of appropriate requirements. The overflow box 2 is internally distributed with an overflow liquid main pipe 8, a first overflow chamber 9, a second overflow chamber 10 and a confluence chamber 11 to effectively perform multi-stage overflow extraction, thereby improving the overflow work efficiency. After the multi-stage overflow operation, the liquid is discharged and precipitated through the drainage pump 12 at the bottom, and then extracted again with the liquid outlet pipe 13 at the bottom. The overall functional components are distributed up and down, thereby improving the multi-stage efficiency of the overflow and better facilitating the subsequent extraction and discharge. Example

[0025] Based on the first embodiment, the solution in the first embodiment is further detailed in combination with the following specific working methods, as described below:

[0026] like Figure 3 As shown, as a preferred embodiment; an embedded mounting plate 6 is embedded and connected to the front of the device body 1. Further, the embedded mounting plate 6 is flexible and convenient for assembly and disassembly operations, making it more convenient to use.

[0027] The working process of this utility model is as follows:

[0028] When this multi-stage overflow device for wet-process lithium battery diaphragm extraction is in use, the overflow box 2 is embedded in the interior of the device body 1 to facilitate overflow operations, and the top is overlapped and embedded with a liquid inlet control valve 3 and a liquid inlet 4 to form an extraction overflow of appropriate requirements. The overflow box 2 is internally distributed with an overflow liquid main pipe 8, a first overflow chamber 9, a second overflow chamber 10 and a confluence chamber 11 to effectively perform multi-stage overflow extraction and improve the overflow work efficiency. After the multi-stage overflow operation, the drainage pump 12 at the bottom is used for drainage and precipitation, and then the liquid outlet pipe 13 at the bottom is used again for extraction. The overall functional components are distributed up and down, which improves the multi-stage efficiency of the overflow and is more convenient for later extraction and discharge. This is the working process and working principle of the device.

[0029] Finally, a few points should be explained: First, in the description of this application, it should be noted that, unless otherwise specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense, and may refer to mechanical or electrical connections, internal communication between two components, or direct connection. "Up," "down," "left," and "right" are only used to indicate relative positional relationships. When the absolute positions of the objects being described change, the relative positional relationships may also change.

[0030] Secondly: The drawings of the embodiments disclosed in this utility model only involve structures related to the embodiments disclosed in this utility model. Other structures can refer to common designs. In the absence of conflicts, the same embodiment and different embodiments of the utility model can be combined with each other.

[0031] Finally: The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A multi-stage overflow device for wet-process lithium battery diaphragm extraction, comprising a device body (1), characterized in that: An overflow box (2) is embedded and connected inside the device body (1); A liquid inlet control valve (3) is embedded and connected to one side of the top of the overflow box (2); a valve stem (7) is overlapped and connected to the middle part of the interior of the liquid inlet control valve (3); a liquid inlet (4) is embedded and connected to the other side of the top of the overflow box (2); a partition fixing plate (5) is overlapped and connected to one side of the surface of the overflow box (2); an overflow liquid main pipe (8) is overlapped and connected to the interior of the overflow box (2); a first overflow chamber (9) is overlapped and connected to the bottom of the overflow liquid main pipe (8); a second overflow chamber (10) is overlapped and connected to the bottom of the first overflow chamber (9); a confluence chamber (11) is overlapped and connected to the bottom of the second overflow chamber (10); a liquid discharge pump (12) is overlapped and connected to the bottom of the overflow box (2); overflow control valves (14) are embedded and connected to both sides of the device body (1); and a second valve stem (15) is overlapped and connected to the middle part of the overflow control valve (14).

2. The multi-stage overflow device for wet-process lithium battery diaphragm extraction according to claim 1, characterized in that: The bottom of the liquid discharge pump (12) is overlapped and connected to a liquid outlet pipe (13).

3. The multi-stage overflow device for wet-process lithium battery diaphragm extraction according to claim 1, characterized in that: An embedded mounting plate (6) is embedded and connected directly in front of the device body (1).

4. The multi-stage overflow device for wet-process lithium battery diaphragm extraction according to claim 1, characterized in that: The outer wall of the lower half of the liquid inlet control valve (3) is embedded in the upper half of the inner wall of the overflow box (2), and forms a left-right structure with the liquid inlet (4) on one side.

5. The multi-stage overflow device for wet-process lithium battery diaphragm extraction according to claim 1, characterized in that: The overflow liquid main pipe (8), the first overflow chamber (9), the second overflow chamber (10) and the confluence chamber (11) are arranged in an upper and lower structure and are all distributed on the inner wall of the overflow box (2).

6. The multi-stage overflow device for wet-process lithium battery diaphragm extraction according to claim 1, characterized in that: The overflow control valves (14) are embedded and distributed on both sides of the device body (1), and there are four of them, which are symmetrically distributed on the left and right.

7. The multi-stage overflow device for wet-process lithium battery diaphragm extraction according to claim 2, characterized in that: The liquid outlet pipe openings (13) are larger at the top and smaller at the bottom, and are arranged in a left-right distribution. The overflow box (2) on the top is in an up-down structure.

8. The multi-stage overflow device for wet-process lithium battery diaphragm extraction according to claim 3, characterized in that: The embedded mounting plate (6) is in a longitudinal "concave" shape and is embedded into the outer walls on both sides and into the inner wall of the device body (1), forming a nested assembly structure.

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