Filtering mechanism for vacuum mixer

Abstract

The filtering mechanism comprises a shell, a filter screen, a built-in tank and a viscometer, the filter screen, the built-in tank and the viscometer are mounted in the shell, a feed port at the top end of the shell is connected with a discharge port of the vacuum mixer, a weight sensor is mounted on the inner bottom wall of the shell, the built-in tank is mounted on the weight sensor, the filter screen is positioned above the built-in tank, and the viscometer is positioned above the built-in tank. The viscometer is fixed on the shell, and a rotor on the viscometer can extend into the built-in tank; according to the filtering mechanism provided by the utility model, slurry enters the shell through the discharge hole of the vacuum mixer and then is sieved through the screen, the slurry enters the built-in tank after passing through the screen, and the sensor and the timer can be triggered when the slurry is in contact with the bottom of the built-in tank, so that time statistics and slurry weight recording are carried out; when the slurry reaches a certain height, viscosity, weight, time and viscosity data are measured through a rotor on the viscometer and are fed back to a control panel, and the sieving rate and the slurry viscosity can be directly calculated.

Description

Technical Field

[0001] The utility model relates to the technical field of battery production, in particular to a filtering mechanism for a vacuum mixer. Background Art

[0002] As one of the most important new energy products, lithium-ion batteries have the advantages of high rate performance, good cycle performance, safety, and environmental protection. The quality of lithium-ion batteries depends largely on the initial battery slurry preparation process. The quality of the battery slurry directly determines the effect of subsequent coating, and then directly affects the comprehensive performance of the battery produced later. The quality of the battery slurry mainly depends on the dispersion performance of the slurry, the size distribution of solid particles in the slurry, and the slurry viscosity.

[0003] At present, in order to obtain a slurry with better dispersion, the battery slurry generally needs to be screened after the slurry mixing is completed to filter out larger solid particles to avoid affecting the subsequent coating. However, traditional slurry screening cannot directly reflect the screening efficiency and the quality of the screened slurry in a digital way. Utility Model Content

[0004] In order to solve the technical problems existing in the background technology, the utility model provides a filtering mechanism for a vacuum mixer.

[0005] The utility model provides a filtering mechanism for a vacuum mixer, comprising an outer shell, a filter screen, a built-in tank and a viscometer installed in the outer shell, a top feed port of the outer shell is connected with a discharge port of the vacuum mixer, a weight sensor is installed on the inner bottom wall of the outer shell, the built-in tank is installed on the weight sensor, the filter screen is located above the built-in tank, the viscometer is fixed on the outer shell and a rotor on the viscometer can extend into the built-in tank.

[0006] The utility model proposes a filtering mechanism for a vacuum mixer, which also includes a lifting base. The outer shell is composed of an upper shell and a lower shell assembled in the vertical direction, wherein the upper shell is fixedly connected to the vacuum mixer, and the lower shell is installed on the lifting base. The lifting base can drive the lower shell to move up and down so that the lower shell and the upper shell are assembled to form the outer shell or the two are separated.

[0007] Preferably, the filter is detachably mounted on the upper shell.

[0008] Preferably, an annular groove is formed at the bottom end of the upper shell, a gasket is fixed on the inner top wall of the groove, and the top end wall of the lower shell can extend into the groove and abut against the gasket.

[0009] Preferably, the groove is in the shape of a trumpet with the flared end facing downward.

[0010] Preferably, the inner groove wall of the groove extends obliquely downward to just above the built-in tank.

[0011] Preferably, a vacuum channel is provided on the upper shell and an exhaust valve is installed.

[0012] The filtering mechanism proposed by the utility model is that the slurry enters the outer shell from the discharge port of the vacuum mixer and is screened through the screen. After passing through the screen, the slurry enters the built-in tank, and when the slurry contacts the bottom of the built-in tank, the sensor and the timer will be triggered, so as to perform time statistics and slurry weight records. When the slurry reaches a certain height, the viscosity is measured by the rotor on the viscometer, and the weight, time, and viscosity data are fed back to the control panel, so that the screening rate and slurry viscosity can be directly calculated. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of the structure of a filter mechanism for a vacuum mixer proposed by the utility model in which the upper shell and the lower shell are separated;

[0014] Figure 2 The utility model is a schematic structural diagram of an upper shell and a lower shell in a filtering mechanism for a vacuum mixer when the upper shell and the lower shell are assembled into an outer shell. DETAILED DESCRIPTION

[0015] Reference Figure 1-2 The utility model proposes a filtering mechanism for a vacuum mixer, comprising a shell 1 and a filter screen 2, a built-in tank 3, and a viscometer 4 installed in the shell 1. The top feed port of the shell 1 is connected to the discharge port of the vacuum mixer. A weight sensor 6 is installed on the inner bottom wall of the shell 1. The built-in tank 3 is installed on the weight sensor 6. The filter screen 2 is located above the built-in tank 3. The viscometer 4 is fixed on the shell 1 and the rotor on the viscometer 4 can extend into the built-in tank 3.

[0016] The use process of the filtering mechanism is as follows: when in use, the slurry sent out from the discharge port of the vacuum mixer enters the outer shell 1, and the slurry falls into the built-in tank 3 after being filtered by the filter screen 2. When the slurry reaches a certain height, it contacts the rotor of the viscometer 4 extending into the built-in tank 3. The viscometer 4 detects the viscosity of the slurry, thereby digitizing the quality of the slurry screening.

[0017] The utility model proposes a filtering mechanism for a vacuum mixer, which also includes a control panel and a timing unit. The timing unit, a weight sensor 6 and a viscometer 4 are all electrically connected to the control panel. When the slurry reaches a certain height, the viscosity of the slurry is obtained by the rotor on the viscometer 4, the weight of the slurry is obtained by the weight sensor 6, and the time is counted by the timing unit, so as to calculate the screening rate and the slurry viscosity.

[0018] In order to facilitate the maintenance and replacement of the structure inside the shell 1, the filtering mechanism for a vacuum mixer proposed in the utility model also includes a lifting base 5. The shell 1 is composed of an upper shell 11 and a lower shell 12 assembled in the vertical direction, wherein the upper shell 11 is fixedly connected to the vacuum mixer, and the lower shell 12 is installed on the lifting base 5. The lifting base 5 can drive the lower shell 12 to move up and down so that the lower shell 12 and the upper shell 11 are assembled to form the shell 1 or the two are separated, wherein the filter screen 2 is installed on the upper shell 11, and in order to facilitate the replacement of the rotor on the viscometer 4, the viscometer 4 is installed on the lower shell 12.

[0019] The lifting base 5 includes a base body and a cylinder fixed on the base body, and the top output end of the cylinder is fixedly connected to the lower shell 12. When the lower shell 12 is located directly below the upper shell 11, the cylinder drives the lower shell 12 to move upward and assemble with the upper shell 11 to form the outer shell 1, and then filtering is performed.

[0020] In the above embodiment, in order to facilitate cleaning and replacement of the filter 2, the filter 2 can be detachably installed on the upper shell 11. Specifically, a fastening bolt is spirally screwed on the upper shell 11, and a horizontally arranged socket is opened on the filter 2 and can be adapted to be plugged with the fastening bolt.

[0021] To improve the sealing between the upper shell 11 and the lower shell 12, an annular groove 111 is opened at the bottom end of the upper shell 11. A gasket is fixed on the inner top wall of the groove 111, and the top end wall of the lower shell 12 can extend into the groove 111 and abut against the gasket.

[0022] In the above embodiment, in order to facilitate the connection between the upper shell 11 and the lower shell 12, the groove 111 is in a trumpet shape with the flared end facing downward.

[0023] The inner groove wall of the groove 111 extends downwardly to the top of the built-in tank 3. Figure 1 , Figure 2 The inner groove wall of the groove 111 forms a trumpet-shaped guide portion, so that the slurry filtered by the filter screen 2 can flow into the built-in tank 3 through the guide portion.

[0024] In the above embodiment, in order to reduce the generation of bubbles in the slurry, a vacuum channel is provided on the upper shell 11 , and an exhaust valve is also installed on the upper shell 11 .

[0025] A discharge channel is installed on the bottom wall of the built-in tank 3. The discharge channel slides and seals through the avoidance opening opened on the shell 1 and extends to the outside of the shell 1. A valve is installed on the discharge channel to facilitate the discharge of the slurry in the built-in tank 3.

[0026] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A filtering mechanism for a vacuum mixer, characterized in that: The invention comprises a housing (1), a filter screen (2), a built-in tank (3), and a viscometer (4) installed in the housing (1); a top feed port of the housing (1) is connected to a discharge port of a vacuum mixer; a weight sensor (6) is installed on the inner bottom wall of the housing (1); the built-in tank (3) is installed on the weight sensor (6); the filter screen (2) is located above the built-in tank (3); the viscometer (4) is fixed on the housing (1) and a rotor on the viscometer (4) can extend into the built-in tank (3).

2. The filtration mechanism for a vacuum mixer according to claim 1, characterized in that: The invention also comprises a lifting base (5), wherein the outer shell (1) is composed of an upper shell (11) and a lower shell (12) assembled in a vertical direction, wherein the upper shell (11) is fixedly connected to the vacuum mixer, and the lower shell (12) is installed on the lifting base (5), and the lifting base (5) can drive the lower shell (12) to move up and down so that the lower shell (12) and the upper shell (11) are assembled to form the outer shell (1) or the two are separated.

3. The filtration mechanism for a vacuum mixer according to claim 2, characterized in that: The filter screen (2) is detachably mounted on the upper housing (11).

4. The filtration mechanism for a vacuum mixer according to claim 3, characterized in that: An annular groove (111) is provided at the bottom end of the upper shell (11), a gasket is fixed on the inner top wall of the groove (111), and the top end wall of the lower shell (12) can extend into the groove (111) and abut against the gasket.

5. The filtering mechanism for a vacuum mixer according to claim 4, characterized in that: The groove (111) is in the shape of a trumpet with the flared end facing downward.

6. The filtration mechanism for a vacuum mixer according to claim 1, characterized in that: The inner groove wall of the groove (111) extends obliquely downward to just above the built-in tank (3).

7. The filtration mechanism for a vacuum mixer according to claim 1, characterized in that: The upper shell (11) is provided with a vacuum channel and an exhaust valve.

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