Novel slurry mixing metering tank device

Abstract

The utility model discloses a novel slurry mixing metering tank device, and relates to the technical field of battery cell manufacturing. Comprising a tank body, an upper material storage layer, a lower material storage layer and a discharging cavity are sequentially arranged in the tank body from top to bottom, and the upper material storage layer and the lower material storage layer communicate with the discharging cavity; the tank body is further provided with an upper-layer feeding pipeline communicated with the upper material storage layer, a lower-layer feeding pipeline communicated with the lower material storage layer, a discharging pipeline communicated with the discharging cavity and a vacuumizing pipeline communicated with the upper material storage layer and the lower material storage layer. According to the utility model, closed conveying, accurate metering and rapid material changing of powder are realized.

Description

Technical Field

[0001] This utility model relates to the field of battery cell manufacturing technology, specifically to a novel slurry metering tank device. Background Technology

[0002] In the battery cell production process, the batching section needs to mix dry powder with solvent to form a slurry. In existing technologies, solvents are typically transported via storage tanks, pipelines, and metering pumps, but the storage and transport of powder presents the following problems:

[0003] Low efficiency of powder conveying: Traditional pipeline conveying is prone to powder blockage, which is time-consuming to clean and affects the continuity of production;

[0004] Insufficient metering accuracy: The amount of powder added is difficult to control precisely, resulting in poor consistency of the slurry;

[0005] Environmental pollution risk: Open feeding can easily cause dust to escape, endangering the health of operators;

[0006] Large footprint: Traditional vacuum metering tanks are bulky and cannot be laid out in a compact manner. Utility Model Content

[0007] The purpose of this utility model is to provide a new type of slurry metering tank device, which aims to solve at least one of the problems in the prior art, such as low powder conveying efficiency, insufficient metering accuracy, environmental pollution, and large equipment footprint.

[0008] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0009] A novel slurry metering tank device includes a tank body, in which an upper storage layer, a lower storage layer, and a discharge chamber are arranged sequentially from top to bottom. The upper storage layer and the lower storage layer are respectively connected to the discharge chamber. The tank body is also provided with an upper inlet pipe connected to the upper storage layer, a lower inlet pipe connected to the lower storage layer, a discharge pipe connected to the discharge chamber, and vacuum pipes connected to the upper storage layer and the lower storage layer respectively.

[0010] As a further embodiment of this utility model: the discharge pipeline includes a discharge pipe, a first solenoid valve and a flow sensor. One end of the discharge pipe is installed at the discharge port at the bottom of the discharge chamber, and the first solenoid valve and the flow sensor are both installed on the discharge pipe.

[0011] As a further embodiment of this utility model: the vacuum pipeline includes a vacuum pipe, a second solenoid valve, and a filter element. The second solenoid valve is installed on the main pipe of the vacuum pipe. The first output end of the vacuum pipe is connected to the upper storage layer, and the second output end of the vacuum pipe is connected to the lower storage layer. The filter element is provided at both the first and second output ends.

[0012] As a further embodiment of this utility model, a pressure gauge is also installed on the main pipe of the vacuuming pipe.

[0013] As a further embodiment of this utility model: the upper feed pipeline includes an upper feed pipe and a No. 3 solenoid valve, one end of the upper feed pipe is connected to the upper storage layer, and the No. 3 solenoid valve is installed on the upper feed pipe.

[0014] As a further embodiment of this utility model: the lower feed pipeline includes a lower feed pipe and a No. 4 solenoid valve, one end of the lower feed pipe is connected to the lower storage layer, and the No. 4 solenoid valve is installed on the lower feed pipe.

[0015] As a further embodiment of this utility model: a No. 5 solenoid valve is provided at the bottom of the lower storage layer, and a connecting pipe is also installed outside the tank body. The connecting pipe connects the upper storage layer with the discharge chamber, and a No. 6 solenoid valve is installed on the connecting pipe.

[0016] As a further embodiment of this utility model: a bracket for supporting the tank is installed at the bottom of the tank.

[0017] As a further aspect of this invention, it also includes a rich set of intelligent controllers, which support the Modbus communication protocol and can be connected to the central control platform of the production line.

[0018] As a further aspect of this utility model: the inner wall of the tank is mirror-polished with a roughness Ra≤0.4μm.

[0019] The beneficial effects of this utility model are:

[0020] (1) This utility model sets up an upper storage layer and a lower storage layer in the tank, and stores different types and batches of powder in the upper and lower storage layers. Different types and batches of powder can be discharged into the mixing section through the discharge pipe. It is convenient and quick to replace different types and batches of powder.

[0021] (2) This utility model feeds materials through the upper feeding pipe and the upper feeding pipeline, discharges materials through the discharge pipe, and stores them in a vacuum through the vacuum pipe. The whole process is closed and will not cause dust to escape, thus ensuring the health of the operators.

[0022] (3) By adding a flow sensor to the discharge pipeline, this utility model can finely control the amount of powder added, which greatly shortens the preparation time of the slurry mixing section, optimizes the feeding method, finely feeds the powder, maintains the consistency of the slurry, and at the same time shortens the feeding time and improves the efficiency.

[0023] (4) This utility model reduces the equipment footprint by 30% through modular design and modular layout, and can be adapted to the needs of different production lines. Attached Figure Description

[0024] The present invention will be further described below with reference to the accompanying drawings.

[0025] Figure 1 This is a front view schematic diagram of a novel slurry metering tank device according to this utility model;

[0026] Figure 2 This is a schematic diagram of the internal structure of a novel slurry metering tank device according to this utility model;

[0027] Figure 3 This is a side view schematic diagram of the vacuum pipeline structure of this utility model.

[0028] In the diagram: 1. Tank body; 11. Upper storage layer; 12. Lower storage layer; 13. Discharge chamber; 14. Solenoid valve No. 5; 2. Upper feed pipe; 21. Upper feed pipe; 22. Solenoid valve No. 3; 3. Lower feed pipe; 31. Lower feed pipe; 32. Solenoid valve No. 4; 4. Discharge pipe; 41. Discharge pipe; 42. Solenoid valve No. 1; 43. Flow sensor; 5. Vacuum pipe; 51. Vacuum pipe; 52. Solenoid valve No. 2; 53. Filter element; 6. Pressure gauge; 7. Connecting pipe; 8. Solenoid valve No. 6; 9. Support; 10. Intelligent controller. Detailed Implementation

[0029] The technical solutions in the embodiments of this utility model are described clearly and completely below. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0030] In the description of this utility model, it should be understood that the terms "upper", "lower", "left", "right", "front", "rear", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or a specific orientational structure and operation. Therefore, they should not be construed as limitations on this utility model.

[0031] Furthermore, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0032] Please see Figure 1 As shown, this utility model embodiment provides a novel slurry metering tank device, including a tank body 1. The tank body 1 can be configured as a cylindrical stainless steel structure with a mirror-polished inner wall and an inner wall roughness Ra≤0.4μm. A conical discharge port is provided at the bottom. Please refer to [link / reference]. Figure 2 As shown, the tank body 1 is provided with an upper storage layer 11, a lower storage layer 12, and a discharge chamber 13 arranged sequentially from top to bottom. The upper storage layer 11 and the lower storage layer 12 store different powders respectively. The upper storage layer 11 and the lower storage layer 12 are respectively connected to the discharge chamber 13, so that the different powders stored in the upper storage layer 11 and the lower storage layer 12 can be discharged from the discharge port of the discharge chamber 13 in turn, allowing for rapid material replacement. The tank body 1 is also provided with an upper feed pipe 2 connected to the upper storage layer 11, through which the powder from the upper layer enters the upper storage layer 11. The tank body 1 is also provided with a lower feed pipe 3 connected to the lower storage layer 12, through which the powder from the lower layer enters the lower storage layer 12. The tank body 1 is also equipped with a discharge pipe 4 connected to the discharge chamber 13. The powder in the upper storage layer 11 and the lower storage layer 12 enters the discharge pipe 4 from the discharge port of the discharge chamber 13. The tank body 1 is also equipped with a vacuum pipe 5 connected to the upper storage layer 11 and the lower storage layer 12 respectively. The vacuum pipe 5 draws negative pressure into the upper storage layer 11 and the lower storage layer 12, so that the powder in the upper storage layer 11 and the lower storage layer 12 is vacuum preserved.

[0033] Understandably, intelligent controllers 10 can be added to the tank 1 to enable intelligent collaborative control of various components of the device. These intelligent controllers 10 support the Modbus communication protocol and can be connected to the central control platform of the production line. A support bracket 9 is also installed at the bottom of the tank 1 to support it. The support bracket 9 can be configured as a hydraulic lifting structure with a height adjustment range of 1.5-2.5m to adapt to the needs of different production lines.

[0034] Please see Figure 2As shown, in this embodiment, the discharge pipeline 4 includes a discharge pipe 41, a solenoid valve 42, and a flow sensor 43. One end of the discharge pipe 41 is installed at the discharge port at the bottom of the discharge chamber 13. The solenoid valve 42 and the flow sensor 43 are both installed on the discharge pipe 41. The powder in the upper storage layer 11 and the lower storage layer 12 is output through the discharge pipe 41. The flow sensor 43 monitors the flow rate of the powder in the discharge pipe 41 in real time and feeds it back to the intelligent controller 10. The intelligent controller 10 adjusts the solenoid valve 42 in real time according to the flow feedback to ensure that the feeding error is ≤0.5%.

[0035] Please see Figure 2 and Figure 3 As shown, in this embodiment, the vacuum pipeline 5 includes a vacuum pipe 51, a second solenoid valve 52, and a filter element 53. The vacuum pipeline is connected to an external vacuum pump, which can be a rotary vane vacuum pump (model 2XZ-20) with a pumping speed of 20m³ / h. 3 / h, ultimate vacuum degree -0.098MPa. Solenoid valve 52 is installed on the main pipe of vacuum pipe 51. Output end 1 of vacuum pipe 51 is connected to the upper storage layer 11, and output end 2 of vacuum pipe 51 is connected to the lower storage layer 12. Filter elements 53 are installed at both output ends 1 and 2. The vacuum pump performs vacuuming operations on the upper storage layer 11 and lower storage layer 12 through output ends 1 and 2 of vacuum pipe 51. During vacuuming, filter element 53 prevents powder from entering vacuum pipe 51. Filter element 53 can be a PTFE membrane filter element with a filtration accuracy of 0.1μm. It is understood that a pressure gauge 6 is installed on the main pipe of vacuum pipe 51 to monitor the negative pressure state inside tank 1 in real time. A pressure gauge 6 with a range of -0.1-0MPa and an accuracy of 1.0 class is selected.

[0036] Please see Figure 2 As shown, in this embodiment, the upper feed pipeline 2 includes an upper feed pipe 21 and a third solenoid valve 22. One end of the upper feed pipe 21 is connected to the upper storage layer 11, and the third solenoid valve 22 is installed on the upper feed pipe 21. The powder from the upper layer enters the upper storage layer 11 through the upper feed pipe 21. During feeding and discharging, the third solenoid valve 22 is in the open state, and during powder storage, the third solenoid valve 22 is closed.

[0037] Please see Figure 2 As shown, in this embodiment, the lower feed pipeline 3 includes a lower feed pipe 31 and a fourth solenoid valve 32. One end of the lower feed pipe 31 is connected to the lower storage layer 12, and the fourth solenoid valve 32 is installed on the lower feed pipe 31. The powder from the lower layer enters the lower storage layer 12 through the lower feed pipe 31. During feeding and discharging, the fourth solenoid valve 32 is in the open state, and during powder storage, the fourth solenoid valve 32 is closed.

[0038] A solenoid valve 14 (No. 5) is installed at the bottom of the lower storage layer 12. When the solenoid valve 14 is opened, the powder in the lower storage layer 12 can enter the discharge chamber 13. A connecting pipe 7 is also installed outside the tank body 1, connecting the upper storage layer 11 and the discharge chamber 13. A solenoid valve 8 (No. 6) is installed on the connecting pipe 7. When the solenoid valve 8 is opened, the powder in the upper storage layer 11 can enter the discharge chamber 13.

[0039] It should be noted that all of the solenoid valves from No. 1 (42) to No. 6 (8) can be designed as bidirectional pneumatic solenoid valves, supporting forward discharge and reverse purging.

[0040] The preferred embodiments of this utility model have been described in detail above and should not be considered as limiting the scope of this utility model. All equivalent changes and improvements made within the scope of the claims of this utility model should still fall within the patent coverage of this utility model.

Claims

1. A novel slurry batching tank arrangement comprising a tank body (1) characterised in that: The tank body (1) is provided with an upper storage layer (11), a lower storage layer (12) and a discharge chamber (13) arranged from top to bottom. The upper storage layer (11) and the lower storage layer (12) are respectively connected to the discharge chamber (13). The tank body (1) is also provided with an upper feed pipe (2) connected to the upper storage layer (11), a lower feed pipe (3) connected to the lower storage layer (12), a discharge pipe (4) connected to the discharge chamber (13), and a vacuum pipe (5) connected to the upper storage layer (11) and the lower storage layer (12) respectively.

2. A new slurry batching tank device according to claim 1, characterized in that: The discharge pipeline (4) includes a discharge pipe (41), a first solenoid valve (42) and a flow sensor (43). One end of the discharge pipe (41) is installed at the discharge port at the bottom of the discharge chamber (13). The first solenoid valve (42) and the flow sensor (43) are both installed on the discharge pipe (41).

3. A new slurry batching tank device according to claim 1, characterized in that: The vacuum pipeline (5) includes a vacuum pipeline (51), a second solenoid valve (52), and a filter element (53). The second solenoid valve (52) is installed on the main pipeline of the vacuum pipeline (51). The first output end of the vacuum pipeline (51) is connected to the upper storage layer (11), and the second output end of the vacuum pipeline (51) is connected to the lower storage layer (12). The filter element (53) is provided at both the first and second output ends.

4. A novel slurry batching tank arrangement according to claim 3, characterised in that: A pressure gauge (6) is also installed on the main pipe of the vacuum pipe (51).

5. A new slurry batching tank device according to claim 1, characterized in that: The upper feed pipeline (2) includes an upper feed pipe (21) and a No. 3 solenoid valve (22). One end of the upper feed pipe (21) is connected to the upper storage layer (11), and the No. 3 solenoid valve (22) is installed on the upper feed pipe (21).

6. The novel slurry metering tank device according to claim 1, characterized in that: The lower feed pipeline (3) includes a lower feed pipe (31) and a No. 4 solenoid valve (32). One end of the lower feed pipe (31) is connected to the lower storage layer (12), and the No. 4 solenoid valve (32) is installed on the lower feed pipe (31).

7. A new slurry batching tank device according to claim 1, characterized in that: The bottom of the lower storage layer (12) is provided with a No. 5 solenoid valve (14), and a connecting pipe (7) is also installed outside the tank body (1). The connecting pipe (7) connects the upper storage layer (11) with the discharge chamber (13), and a No. 6 solenoid valve (8) is installed on the connecting pipe (7).

8. A new slurry batching tank device according to claim 1, characterized in that: The bottom of the tank (1) is equipped with a bracket (9) for supporting the tank (1).

9. A new slurry batching tank device as claimed in claim 1, characterized in that: It also includes a rich intelligent controller (10), which supports the Modbus communication protocol and can be connected to the central control platform of the production line.

10. A new slurry batching tank device according to claim 1, characterized in that, The inner wall of the tank (1) is mirror polished with a roughness Ra≤0.4μm.

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