Battery cell slurry working procedure self-circulation device

Abstract

The utility model relates to a battery cell slurry working procedure self-circulation device, which belongs to the technical field of battery cell slurry production and processing, and comprises a stock bin body, a stock bin blanking valve is arranged at the blanking end of the bottom of the stock bin body, an air bag pulse is arranged on one side of the stock bin body, a stock bin back-throwing device is arranged on one side of the air bag pulse, and the stock bin back-throwing device is arranged on the other side of the stock bin body. A filter cartridge is fixedly connected to the interior of the stock bin back-throwing device, and a pressure difference transmitter A is fixedly connected to the surface of the filter cartridge; the tail end of the stock bin back-throwing device is fixedly connected with an online filter bypass A, and the online filter bypass A is communicated and connected with an online filter body A through a pressure difference transmitter B. Through a nitrogen circulation conveying mode, dust explosion is prevented from the source position, an oxygen concentration detector, a pressure sensor, a temperature sensor, a dew point detector and a dust concentration detector are arranged in the system, and all-directional detection control over a pipeline is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of production and processing of battery core slurry, and more specifically to a self-circulation device for a battery core slurry process. Background Art

[0002] During the production and processing of battery cell slurry, directional feeding is required.

[0003] After searching, the existing announcement number CN213660589U is a kind of battery core slurry filling device, which includes a box body, a first installation door and a second installation door. A slurry box is fixedly installed inside the box body, a feed pipe is connected to one side of the slurry box, a feed pipe is connected to the bottom of the slurry box, a feed pump connected to the feed pipe is fixedly installed inside the box body, a feed head is fixedly installed at one end of the feed pump, a water inlet pipe is connected to the top of the slurry box, and a first drive motor is fixedly installed on one side of the water inlet pipe. In the utility model, high-pressure water is introduced into the water inlet pipe, and after passing through the water inlet pipe, the first pipe and the second pipe, the high-pressure water flows out from the nozzle to clean the inside of the slurry box, and the first pipe, the second pipe and the nozzle are driven to rotate by each drive motor, and the spray angle and direction of the nozzle are adjusted, so as to clean each corner inside the slurry box, which is simple to operate and improves the working efficiency of flushing.

[0004] When transporting organic materials, due to the characteristics of the materials themselves, improper operation can easily lead to dust explosions, which poses a great safety hazard. Therefore, we have proposed a self-circulating device for the battery slurry process to solve the above problems. Utility Model Content

[0005] 1. Technical issues to be solved

[0006] In view of the problems existing in the prior art, the purpose of the utility model is to provide a self-circulating device for the battery cell slurry process, which prevents the occurrence of dust explosions from the source by circulating nitrogen. The system is equipped with an oxygen concentration detector, a pressure sensor, a temperature sensor, a dew point detector, and a dust concentration detector to achieve all-round detection and control of the pipeline.

[0007] 2. Technical solution

[0008] To solve the above problems, the utility model adopts the following technical solutions.

[0009] A self-circulating device for a cell slurry process, comprising a silo body, a silo discharge valve is installed at the bottom discharge end of the silo body, an air bag pulse is installed on one side of the silo body, a silo return device is installed on one side of the air bag pulse, a filter cartridge is fixedly connected inside the silo return device, and a differential pressure transmitter A is fixedly connected to the surface of the filter cartridge;

[0010] The end of the silo return device is fixedly connected to an online filter bypass A, and the online filter bypass A is connected to an online filter body A through a differential pressure transmitter B;

[0011] An exhaust valve and a pneumatic butterfly valve A are installed outside the in-line filter body A, a Roots blower body is installed outside the pneumatic butterfly valve A, and two ends of the Roots blower body are conductively connected with a Roots blower soft connection A and a Roots blower soft connection B;

[0012] The open end of the Roots blower soft connection B is conductively connected to a tubular heat exchanger, the bottom of the tubular heat exchanger is conductively connected to a chilled water inlet and outlet, and the outer side of the tubular heat exchanger is conductively connected to an online filter B;

[0013] A star valve and a conveying inclined pipe are installed on one side of the silo body.

[0014] Preferably, a dew point detector A, an oxygen concentration detector A and a dust concentration detector are installed in sequence between the online filter body A and the exhaust valve.

[0015] Preferably, the oxygen concentration detector A is located between the dew point detector A and the dust concentration detector.

[0016] Preferably, a nitrogen inlet pipe is installed between the pneumatic butterfly valve A and the Roots blower body, and the surface of the nitrogen inlet pipe is connected with an air supply valve and an air supply bypass.

[0017] Preferably, the surface of the online filter B is conductively connected to a differential pressure transmitter C, and an online filter bypass B is installed outside the online filter B.

[0018] Preferably, an oxygen concentration detector B, a pressure sensor and a temperature sensor are sequentially installed on the outside of the tubular heat exchanger.

[0019] Preferably, the pressure sensor is located between the oxygen concentration detector B and the temperature sensor.

[0020] Preferably, the pressure sensor, the oxygen concentration detector B and the temperature sensor are all installed on the same conveying pipeline surface.

[0021] 3. Beneficial effects

[0022] Compared with the prior art, the advantages of the present invention are:

[0023] This solution prevents dust explosions from the source by circulating nitrogen. The system is equipped with an oxygen concentration detector, pressure sensor, temperature sensor, dew point detector, and dust concentration detector to achieve all-round detection and control of the pipeline.

[0024] The above-mentioned records related to the content of the utility model are only an overview of the technical solution of the present application. In order to enable ordinary technicians in the field to more clearly understand the technical solution of the present application, and then implement it according to the text of the specification and the contents recorded in the drawings, and to make the above-mentioned purpose and other purposes, features and advantages of the present application easier to understand, the following is an explanation in combination with the specific implementation method and drawings of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The drawings are only used to illustrate the principles, implementation methods, applications, characteristics and effects of the specific embodiments of the present application and other related contents, and shall not be considered as limitations of the present application.

[0026] In the drawings of the specification:

[0027] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0028] Figure 2 This is a schematic diagram of the structure of the silo body and the silo discharge valve of the utility model;

[0029] Figure 3 This is a schematic diagram of the structure of the online filter bypass A and the differential pressure transmitter B of the utility model;

[0030] Figure 4 It is a schematic diagram of the tubular heat exchanger and the chilled water inlet and outlet structure of the utility model;

[0031] Figure 5 It is a schematic diagram of the connection structure of the differential pressure transmitter C and the online filter B of the utility model.

[0032] Description of the numbers in the figure:

[0033] 1. Star valve; 2. Conveying inclined pipe; 3. Silo body; 4. Air bag pulse; 5. Silo return device; 6. Filter cartridge; 7. Pressure difference transmitter A; 8. Online filter bypass A; 9. Pressure difference transmitter B; 10. Online filter body A; 11. Dew point detector A; 12. Oxygen concentration detector A; 13. Dust concentration detector; 14. Exhaust valve; 15. Pneumatic butterfly valve A; 16. Nitrogen inlet pipe; 17. Air supply valve; 18. Air supply bypass; 19. Roots blower soft connection A; 20. Roots blower body; 21. Roots blower soft connection B; 22. Tubular heat exchanger; 23. Chilled water inlet and outlet; 24. Oxygen concentration detector B; 25. Pressure sensor; 26. Temperature sensor; 27. Online filter bypass B; 28. Pressure difference transmitter C; 29. ​​Online filter B; 30. Silo discharge valve. DETAILED DESCRIPTION

[0034] In order to explain in detail the possible application scenarios, technical principles, specific schemes that can be implemented, and the purposes and effects that can be achieved of the present application, the following is a detailed description in combination with the specific embodiments listed and the accompanying drawings. The embodiments recorded in this article are only used to more clearly illustrate the technical solutions of the present application, and are therefore only used as examples, and cannot be used to limit the scope of protection of the present application.

[0035] Reference to "embodiment" herein means that the specific features, structures or characteristics described in conjunction with the embodiment may be included in at least one embodiment of the present application. The term "embodiment" appearing in various places in the specification does not necessarily refer to the same embodiment, nor does it particularly limit its independence or association with other embodiments. In principle, in the present application, as long as there is no technical contradiction or conflict, the various technical features mentioned in the embodiments can be combined in any way to form a corresponding implementable technical solution.

[0036] Unless otherwise defined, the technical terms used in this document have the same meanings as those generally understood by those skilled in the art to which this application belongs; the use of relevant terms in this document is only for describing specific embodiments and is not intended to limit this application.

[0037] In the description of this application, the term "and / or" is an expression used to describe the logical relationship between objects, indicating that three relationships may exist, for example, X and / or Y, which means: X exists, Y exists, and X and Y exist at the same time. In addition, the character " / " in this article generally indicates that the objects before and after are in a logical relationship of "or".

[0038] In the present application, terms such as “first” and “second” are merely used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship of quantity, priority or sequence between these entities or operations.

[0039] Without further limitations, in this application, the words "include", "comprises", "has" or other similar expressions used in the sentences are intended to cover non-exclusive inclusion. These expressions do not exclude the presence of additional elements in the process, method or product including the elements, so that the process, method or product including a series of elements may include not only those limited elements, but also other elements not explicitly listed, or also include elements inherent to such process, method or product.

[0040] Similar to the understanding in the Examination Guidelines, in this application, expressions such as "greater than", "less than", "exceed" and the like are understood to exclude the number itself; expressions such as "above", "below", "within" and the like are understood to include the number itself. In addition, in the description of the embodiments of this application, "multiple" means more than two (including two), and similar expressions related to "multiple" are also understood in this way, such as "multiple groups", "multiple times", etc., unless otherwise clearly and specifically limited.

[0041] In the description of the embodiments of the present application, space-related expressions used, such as "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "vertical", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicate the orientation or position relationship based on the orientation or position relationship shown in the specific embodiments or drawings, and are only for the convenience of describing the specific embodiments of the present application or facilitating the reader's understanding, and do not indicate or imply that the referred device or component must have a specific position, a specific orientation, or be constructed or operated in a specific orientation, and therefore cannot be understood as a limitation on the embodiments of the present application.

[0042] Unless otherwise expressly specified or limited, in the description of the embodiments of the present application, the terms such as "install", "connect", "connect", "fix", "set", etc. used should be understood in a broad sense. For example, the "connection" can be a fixed connection, a detachable connection, or an integrated setting; it can be a mechanical connection, an electrical connection, or a communication connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium; it can be the internal connection of two elements or the interaction relationship between two elements. For technicians in the technical field to which the present application belongs, the specific meanings of the above terms in the embodiments of the present application can be understood according to the specific circumstances.

[0043] Embodiment 1:

[0044] See also Figure 1-5 A self-circulating device for a cell slurry process comprises a silo body 3, a silo discharge valve 30 is installed at the bottom discharge end of the silo body 3, an air bag pulse 4 is installed on one side of the silo body 3, a silo return device 5 is installed on one side of the air bag pulse 4, a filter cartridge 6 is fixedly connected inside the silo return device 5, and a differential pressure transmitter A7 is fixedly connected to the surface of the filter cartridge 6;

[0045] The end of the silo return device 5 is fixedly connected with an online filter bypass A8, and the online filter bypass A8 is connected with an online filter body A10 through a differential pressure transmitter B9;

[0046] An exhaust valve 14 and a pneumatic butterfly valve A15 are installed outside the in-line filter body A10, a Roots blower body 20 is installed outside the pneumatic butterfly valve A15, and two ends of the Roots blower body 20 are conductively connected to a Roots blower soft connection A19 and a Roots blower soft connection B21;

[0047] The open end of the Roots blower soft connection B21 is conductively connected to the tubular heat exchanger 22, the bottom of the tubular heat exchanger 22 is conductively connected to the chilled water inlet and outlet 23, and the outer side of the tubular heat exchanger 22 is conductively connected to the online filter B29;

[0048] A star valve 1 and a conveying inclined pipe 2 are installed on one side of the silo body 3.

[0049] A dew point detector A11, an oxygen concentration detector A12 and a dust concentration detector 13 are installed in sequence between the online filter body A10 and the exhaust valve 14. The oxygen concentration detector A12 is located between the dew point detector A11 and the dust concentration detector 13. A nitrogen input pipe 16 is installed between the pneumatic butterfly valve A15 and the Roots blower body 20. The surface of the nitrogen input pipe 16 is connected to the air supply valve 17 and the air supply bypass 18. The surface of the online filter B29 is connected to the pressure difference transmitter C28. The outside of the online filter B29 is installed with an online filter bypass B27. The outside of the tubular heat exchanger 22 is installed with an oxygen concentration detector B24, a pressure sensor 25 and a temperature sensor 26 in sequence. The pressure sensor 25 is located between the oxygen concentration detector B24 and the temperature sensor 26. The pressure sensor 25, the oxygen concentration detector B24 and the temperature sensor 26 are all installed on the same conveying pipeline surface.

[0050] It should be noted that the process of nitrogen replenishment during startup is as follows:

[0051] When the start button of the conveying system is clicked, the silo discharge valve 30 is in the normally closed state, the pneumatic butterfly valve A15 is closed, the nitrogen inlet pipe 16 starts to supply gas, the Roots blower body 20 is started, and the air flow passes through the tubular heat exchanger 22, the detection instrument on the pipeline, the online filter B29, the conveying inclined pipe 2, the silo body 3, and is discharged from the silo return device 5, refluxes to the online filter A10, passes through the detection instrument on the pipeline, and is discharged from the exhaust valve 14, replacing all the air in the pipeline.

[0052] When the oxygen concentration detector A12 and the oxygen concentration detector B24 detect that the oxygen concentration in the pipeline meets the standard, the exhaust valve 14 is automatically closed, the pneumatic butterfly valve A15 is automatically opened, and the air supply valve 17 and the exhaust valve 14 are automatically adjusted to replenish air according to the pressure sensor 25.

[0053] After the nitrogen replenishment is completed (material conveying process):

[0054] The star valve 1 starts to start, the dust collector starts to discharge, the air sent by the Roots blower body 20 is cooled through the tubular heat exchanger 22, and is detected by the oxygen concentration detector B24, the pressure sensor 25 and the temperature sensor 26. After being filtered by the online filter B29, the material under the dust collector star valve 1 is taken away from the conveying inclined tube 2 and conveyed to the silo body 3. After the powder material and the conveying gas are filtered by the silo return device 5, the clean gas is discharged from the top of the filter cartridge 6, and the material remains in the silo. The discharged clean gas is filtered twice by the online filter A10, detected by the dew point detector A11, the oxygen concentration detector A12, and the dust concentration detector 13, and returns to the Roots blower body 20 to form a closed cycle.

[0055] When in use: Start-up nitrogen replenishment process:

[0056] When the start button of the conveying system is clicked, the silo discharge valve 30 is in the normally closed state, the pneumatic butterfly valve A15 is closed, the nitrogen inlet pipe 16 starts to supply gas, the Roots blower body 20 is started, and the air flow passes through the tubular heat exchanger 22, the detection instrument on the pipeline, the online filter B29, the conveying inclined pipe 2, the silo body 3, and is discharged from the silo return device 5, refluxes to the online filter A10, passes through the detection instrument on the pipeline, and is discharged from the exhaust valve 14, replacing all the air in the pipeline.

[0057] When the oxygen concentration detector A12 and the oxygen concentration detector B24 detect that the oxygen concentration in the pipeline meets the standard, the exhaust valve 14 is automatically closed, the pneumatic butterfly valve A15 is automatically opened, and the air supply valve 17 and the exhaust valve 14 are automatically adjusted to replenish air according to the pressure sensor 25.

[0058] After the nitrogen replenishment is completed (material conveying process):

[0059] The star valve 1 starts to start, the dust collector starts to discharge, the air sent by the Roots blower body 20 is cooled through the tubular heat exchanger 22, and is detected by the oxygen concentration detector B24, the pressure sensor 25 and the temperature sensor 26. After being filtered by the online filter B29, the material under the dust collector star valve 1 is taken away from the conveying inclined tube 2 and conveyed to the silo body 3. After the powder material and the conveying gas are filtered by the silo return device 5, the clean gas is discharged from the top of the filter cartridge 6, and the material remains in the silo. The discharged clean gas is filtered twice by the online filter A10, detected by the dew point detector A11, the oxygen concentration detector A12, and the dust concentration detector 13, and returns to the Roots blower body 20 to form a closed cycle.

[0060] Those skilled in the art will appreciate that, although some embodiments herein include certain features included in other embodiments but not other features, the combination of features of different embodiments is meant to be within the scope of the present application and form different embodiments. For example, in the claims, any one of the claimed embodiments may be used in any combination.

[0061] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them; although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein by equivalents; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application, and they should all be included in the scope of the claims and specification of the present application. In particular, as long as there is no structural conflict, the various technical features mentioned in the various embodiments can be combined in any way. The present application is not limited to the specific embodiments disclosed herein, but includes all technical solutions that fall within the scope of the claims.

Claims

1. A self-circulating device for a battery cell slurry process, comprising a silo body (3), a silo discharge valve (30) being installed at the bottom discharge end of the silo body (3), characterized in that: An air bag pulse (4) is installed on one side of the silo body (3), a silo return device (5) is installed on one side of the air bag pulse (4), a filter cartridge (6) is fixedly connected inside the silo return device (5), and a differential pressure transmitter A (7) is fixedly connected to the surface of the filter cartridge (6); The end of the silo return device (5) is fixedly connected to an online filter bypass A (8), and the online filter bypass A (8) is conductively connected to an online filter body A (10) via a differential pressure transmitter B (9); An exhaust valve (14) and a pneumatic butterfly valve A (15) are installed outside the in-line filter body A (10), a Roots blower body (20) is installed outside the pneumatic butterfly valve A (15), and two ends of the Roots blower body (20) are conductively connected to a Roots blower soft connection A (19) and a Roots blower soft connection B (21); The open end of the Roots blower flexible connection B (21) is conductively connected to a tubular heat exchanger (22), the bottom of the tubular heat exchanger (22) is conductively connected to a chilled water inlet and outlet (23), and the outer side of the tubular heat exchanger (22) is conductively connected to an online filter B (29); A star valve (1) and a conveying inclined pipe (2) are installed on one side of the silo body (3).

2. The self-circulating device for battery slurry process according to claim 1, characterized in that: A dew point detector A (11), an oxygen concentration detector A (12) and a dust concentration detector (13) are installed in sequence between the online filter body A (10) and the exhaust valve (14).

3. The self-circulating device for battery core slurry process according to claim 2, characterized in that: The oxygen concentration detector A (12) is located between the dew point detector A (11) and the dust concentration detector (13).

4. The self-circulating device for battery slurry process according to claim 1, characterized in that: A nitrogen inlet pipe (16) is installed between the pneumatic butterfly valve A (15) and the Roots blower body (20), and a gas supply valve (17) and a gas supply bypass (18) are connected to the surface of the nitrogen inlet pipe (16).

5. The self-circulating device for battery slurry process according to claim 1, characterized in that: The surface of the online filter B (29) is conductively connected to a differential pressure transmitter C (28), and an online filter bypass B (27) is installed outside the online filter B (29).

6. The self-circulating device for battery slurry process according to claim 1, characterized in that: An oxygen concentration detector B (24), a pressure sensor (25) and a temperature sensor (26) are sequentially installed on the outer side of the tubular heat exchanger (22).

7. The self-circulating device for battery core slurry process according to claim 6, characterized in that: The pressure sensor (25) is located between the oxygen concentration detector B (24) and the temperature sensor (26).

8. The self-circulating device for battery core slurry process according to claim 7, characterized in that: The pressure sensor (25), the oxygen concentration detector B (24) and the temperature sensor (26) are all installed on the same conveying pipeline surface.

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