Defoaming and grinding equipment for lithium battery slurry

Abstract

The utility model belongs to the technical field of grinding machines, and particularly relates to defoaming and grinding equipment for lithium battery slurry, which comprises an accommodating tank body, a grinding box is fixedly mounted at the top of the accommodating tank body, the top of the grinding box is fixedly communicated with a slurry hopper, two grinding rollers are mounted in the grinding box, and the slurry hopper is fixedly communicated with the slurry hopper. Grinding grooves are formed in the outer walls of the two grinding rollers, the grinding grooves in the two grinding rollers are in meshed contact, the two ends of the two grinding rollers are rotationally connected with the interior of the grinding box, and one ends of the two grinding rollers penetrate through the grinding box and extend to the outer side of the grinding box; transmission gears are fixedly connected to the outer walls of the ends, extending to the outer side of the grinding box, of the two grinding rollers in a sleeving mode, the two transmission gears are meshed with each other, and by arranging the grinding rollers, slurry can be ground repeatedly and circularly, the fineness of the slurry and the uniformity of the slurry are guaranteed, and particles in the slurry are more uniform in thickness.

Description

Technical Field

[0001] The utility model belongs to the technical field of grinders, and in particular relates to a degassing and grinding device for lithium battery slurry. Background Art

[0002] The Chinese patent with application number CN202223162273.5 mentions a battery slurry degassing device, including a holding tank, a feeding pipe, an ultrasonic vibrator and a vacuum negative pressure device. One end of the feeding pipe is arranged on the holding tank and connected to the holding tank, and the battery slurry can enter the holding tank through the feeding pipe; at the same time, the ultrasonic vibrator is arranged in the feeding pipe, and the vacuum negative pressure device is connected to the holding tank. In the utility model, the ultrasonic vibrator is arranged in the feeding pipe to disperse the bubbles in the battery slurry, and the vacuum negative pressure device is connected to the holding tank to extract the gas in the holding tank, so that the bubbles in the battery slurry are reduced in advance by the ultrasonic vibrator, which can facilitate the vacuum negative pressure device to eliminate the bubbles, avoid the phenomenon that the degassing time in the holding tank is short and the degassing effect is not obvious, and thus avoid the bubbles in the battery slurry from affecting the production quality of the battery after being retained.

[0003] However, in the above technical scheme, although it is convenient for the vacuum negative pressure device to eliminate bubbles, avoiding the phenomenon that the degassing time in the holding tank is short and the degassing effect is not obvious, thereby avoiding the bubbles in the battery slurry from remaining and affecting the production quality of the battery, the above-mentioned is a stirring barrel structure, and the material is introduced and then started for stirring. There is no grinding structure, and the stirring process cannot ensure the fineness of the slurry, which is not conducive to the uniformity of the slurry. There is no slurry circulation structure, and the homogenization efficiency of the device is low, which affects the normal use of the lithium battery. Utility Model Content

[0004] The utility model aims at the problems that the prior art has no grinding structure, the stirring process cannot ensure the fineness of the slurry, is not conducive to the uniformity of the slurry, has no slurry circulation structure, and the homogenization efficiency of the device is low. The following technical solutions are proposed:

[0005] A degassing and grinding device for lithium battery slurry comprises a containing tank body, a grinding box is fixedly installed on the top of the containing tank body, a slurry hopper is fixedly connected to the top of the grinding box, a grinding roller is installed inside the grinding box, two grinding rollers are provided with grinding grooves on the outer walls of the two grinding rollers, the grinding grooves on the two grinding rollers are in bite contact, both ends of the two grinding rollers are rotatably connected to the inside of the grinding box, one end of the two grinding rollers passes through the grinding box and extends to the outside of the grinding box, and a transmission gear is fixedly sleeved on the outer wall of this end, and the two transmission gears are meshed with each other.

[0006] As a preferred embodiment of the above technical solution, a fixed block is fixedly connected to the top of the containing tank body, a servo motor is fixedly installed on the top of the fixed block, and an output end of the servo motor is fixedly connected to one end of one of the grinding rollers extending to the outside of the grinding box.

[0007] As a preferred embodiment of the above technical solution, the grinding box is connected to the containing tank through a feed pipe, an electromagnetic valve is installed on the outer wall of the feed pipe, the bottom of the grinding box close to the feed pipe is lower than the end away from the feed pipe, and the bottom of the grinding box is inclined.

[0008] As a preferred embodiment of the above technical solution, a discharge pipe is fixedly connected to the lower end of one side of the outer wall of the containing tank body, the discharge pipe is connected to a diversion pipe at one end away from the containing tank body, one end of the diversion pipe is connected to a discharge port, a solenoid valve 2 is installed on the outer wall of the discharge port, the other end of the diversion pipe is connected to a feed pipe 2, a solenoid valve 3 is installed on the outer wall of the feed pipe 2, the other end of the feed pipe 2 is connected to the slurry hopper, and the outer wall of the feed pipe 2 is connected to a suction pump.

[0009] As a preferred embodiment of the above technical solution, the bottom of the interior of the containing tank body close to the discharge pipe is lower than the end away from the discharge pipe, and the bottom of the interior of the containing tank body is inclined.

[0010] As a preferred embodiment of the above technical solution, a servo motor 2 is fixedly installed on the side of the containing tank body away from the discharge pipe, and the output end of the servo motor 2 passes through and extends to the containing tank body. The output end of the servo motor 2 is fixedly connected to a rotating shaft, and the other end of the rotating shaft is rotatably connected to the side of the inside of the containing tank body away from the servo motor 2. A plurality of stirring rods are fixedly installed on the outer wall of the rotating shaft, and a filter is fixedly installed on the lower side of the stirring rod inside the containing tank body.

[0011] As a preferred embodiment of the above technical solution, a vacuum pipe is opened at one end of the top of the containing tank body, and the vacuum pipe is connected to the containing tank body. An exhaust pipe is opened at the top of the containing tank body between the vacuum pipe and the feeding pipe one, and the exhaust pipe is connected to the containing tank body. A solenoid valve four is installed on the outer wall of the containing tank body.

[0012] The beneficial effects of the utility model are:

[0013] By providing a grinding roller, when grinding the slurry, start the servo motor 1 to drive the grinding roller to rotate, and drive the transmission gear to rotate at the same time. The two grinding rollers mesh with each other through the transmission gear and rotate towards each other, and then the slurry is introduced into the grinding box through the slurry hopper for grinding. When the slurry passes through the grinding groove provided on the outer wall of the grinding roller, the larger particles in the slurry are ground and crushed. When the slurry is initially ground, the slurry enters the containing tank through the feed pipe 1, and then the suction pump is started, and the slurry enters the discharge pipe, and then enters the slurry hopper through the feed pipe 2, and then enters the grinding box through the slurry hopper. The slurry is repeatedly and fully ground. By repeating the above operations, the coarseness of the particles in the slurry is more uniform, which is beneficial for the slurry to be repeatedly circulated and ground, thereby ensuring the fineness and uniformity of the slurry, and making the coarseness of the particles in the slurry more uniform. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 What is shown is a three-dimensional schematic diagram of the utility model;

[0015] Figure 2 It is shown that Figure 1 A schematic diagram of one of the angles;

[0016] Figure 3 It is shown that Figure 1 A schematic diagram of one of the angles;

[0017] Figure 4 Shown is a cross-sectional view of the containing tank;

[0018] Figure 5 Shown is a three-dimensional schematic diagram of a stirring rod and some structures;

[0019] Figure 6 Shown is an exploded schematic diagram of the internal structure of the grinding box;

[0020] Figure 7 Shown are a grinding roller and a partial structural schematic diagram.

[0021] In the figure: 1. containing tank; 2. grinding box; 3. slurry hopper; 4. fixing block; 5. servo motor 1; 6. grinding roller; 7. grinding trough; 8. transmission gear; 9. feed pipe 1; 10. discharge pipe; 11. diverter pipe; 12. discharge port; 14. feed pipe 2; 15. suction pump; 16. servo motor 2; 17. rotating shaft; 18. stirring rod; 19. filter screen; 20. vacuum pipe; 21. exhaust pipe. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical solution and advantages of the embodiments of the present utility model clearer, the technical solution of the present utility model will be clearly and completely described below in conjunction with the embodiments.

[0023] Example

[0024] The utility model provides a degassing and grinding device for lithium battery slurry, such as Figure 1-7 As shown, it includes a containing tank body 1, a grinding box 2 is fixedly installed on the top of the containing tank body 1, a slurry hopper 3 is fixedly connected to the top of the grinding box 2, a grinding roller 6 is installed inside the grinding box 2, and the number of grinding rollers 6 is two. The outer walls of the two grinding rollers 6 are provided with grinding grooves 7, and the grinding grooves 7 on the two grinding rollers 6 are in bite contact. The two ends of the two grinding rollers 6 are rotatably connected to the inside of the grinding box 2, one end of the two grinding rollers 6 passes through the grinding box 2 and extends to the outside of the grinding box 2, and the outer wall of this end is fixedly sleeved with a transmission gear 8, and the two transmission gears 8 are meshed with each other. The top of the containing tank body 1 is fixedly connected with a fixed block 4. A servo motor 5 is fixedly installed on the top of the fixed block 4. The output end of the servo motor 5 is fixedly connected to one end of one of the grinding rollers 6 extending to the outside of the grinding box 2. When in use, when the slurry is ground, the servo motor 5 is started to drive the grinding roller 6 to rotate. The rotation of the grinding roller 6 drives the transmission gear 8 to rotate at the same time. The two grinding rollers 6 are meshed with each other through the transmission gear 8 and rotate toward each other. The slurry is then introduced into the grinding box 2 through the slurry hopper 3 for grinding. When the slurry passes through the grinding groove 7 provided on the outer wall of the grinding roller 6, the larger particles in the slurry are ground and crushed.

[0025] The grinding box 2 is connected to the containing tank body 1 through a feeding pipe 9, an electromagnetic valve 1 is installed on the outer wall of the feeding pipe 9, an ultrasonic vibrator is arranged inside the feeding pipe 9, the bottom of the grinding box 2 is lower than the end away from the feeding pipe 9 near the feeding pipe 9, the bottom of the grinding box 2 is inclined, a discharge pipe 10 is fixedly connected to the lower end of one side of the outer wall of the containing tank body 1, the end of the discharge pipe 10 away from the containing tank body 1 is connected to a shunt pipe 11, one end of the shunt pipe 11 is connected to a discharge port 12, an electromagnetic valve 2 is installed on the outer wall of the discharge port 12, the other end of the shunt pipe 11 is connected to a feeding pipe 2 14, an electromagnetic valve 3 is installed on the outer wall of the feeding pipe 2 14, and the other end of the feeding pipe 2 14 is connected to the slurry hopper 3 The outer wall of the feed pipe 14 is connected to a suction pump 15. The bottom of the containing tank 1 is lower than the end away from the discharge pipe 10 and the bottom of the containing tank 1 is inclined. When in use, when the slurry is initially ground, the solenoid valve 2 is closed, and the slurry enters the containing tank 1 through the feed pipe 9. When the suction pump 15 is started to generate suction, the slurry enters the discharge pipe 10, and then enters the slurry hopper 3 through the feed pipe 14, and then enters the grinding box 2 through the slurry hopper 3. When the slurry passes through the grinding groove 7 provided on the outer wall of the grinding roller 6, the slurry is repeatedly and fully ground. By repeating the above operations, the particle size in the slurry is more uniform.

[0026] A servo motor 16 is fixedly installed on the side of the containing tank body 1 away from the discharge pipe 10, and the output end of the servo motor 16 passes through and extends to the containing tank body 1, and a rotating shaft 17 is fixedly connected to the output end of the servo motor 16, and the other end of the rotating shaft 17 is rotatably connected to the inside of the containing tank body 1 away from the servo motor 16. A plurality of stirring rods 18 are fixedly installed on the outer wall of the rotating shaft 17, and a filter screen 19 is fixedly installed on the lower side of the stirring rod 18 inside the containing tank body 1. A vacuum pipe 20 is opened at one end of the top of the containing tank body 1, and the vacuum pipe 20 is connected to the containing tank body 1. An exhaust pipe 21 is opened between the vacuum pipe 20 and the feeding pipe 9 on the top of the containing tank body 1, and the exhaust pipe 21 is connected to the containing tank body 1. The exhaust pipe 21 facilitates balancing the air pressure inside and outside the containing tank body 1, and a solenoid valve 4 is installed on the outer wall of the containing tank body 1. When in use, when the slurry is repeatedly ground, the slurry is When passing through the feeding pipe 1 9, the ultrasonic vibrator is started to disperse the bubbles in the battery slurry, so that the large bubbles in the battery slurry are reduced before the battery slurry enters the containing tank body 1, and the servo motor 2 16 is started to drive the rotating shaft 17 to rotate. When the rotating shaft 17 rotates, the stirring rod 18 is driven to rotate to stir the battery slurry more evenly and further disperse the internal bubbles, thereby improving the dispersion rate. After the battery slurry passes through the filter screen 19, the size of the bubbles in the battery slurry can be reduced, which is convenient for the vacuum pipe 20 to absorb the bubbles in the battery slurry. When the bubbles in the battery slurry are degassed, the solenoid valve 1, the solenoid valve 2, the solenoid valve 3 and the solenoid valve 4 are closed, and the vacuum pipe 20 is connected to a vacuum machine. The gas in the containing tank body 1 is extracted by starting the vacuum machine to eliminate the bubbles in the battery slurry. When the elimination is completed, the battery slurry is discharged through the discharge port 12.

[0027] Working principle: when in use, when grinding the slurry, by starting the servo motor 5, the grinding roller 6 is driven to rotate, and the rotation of the grinding roller 6 drives the transmission gear 8 to rotate at the same time, and the two grinding rollers 6 are meshed with each other through the transmission gear 8 and rotate toward each other, and then the slurry is introduced into the grinding box 2 through the slurry hopper 3 for grinding, and when the slurry passes through the grinding groove 7 provided on the outer wall of the grinding roller 6, the larger particles in the slurry are fully ground and crushed, and when the slurry is preliminarily ground, by closing the solenoid valve 2, the slurry enters the inside of the containing tank 1 through the feeding pipe 9, and then the suction pump 15 is started to generate suction, and the slurry enters the discharge pipe 10, and then enters the slurry hopper 3 through the feeding pipe 2 14, and enters the grinding box 2 through the slurry hopper 3, and when the slurry passes through the grinding groove 7 provided on the outer wall of the grinding roller 6, the slurry is repeatedly and fully ground. By repeating the above operations, the coarseness of the particles in the slurry is more uniform, and the slurry is When the repeated grinding of the battery slurry is completed, when the slurry passes through the feed pipe 1 9, the ultrasonic vibrator is started to disperse the bubbles in the battery slurry, so that the large bubbles in the battery slurry are reduced before the battery slurry enters the containing tank body 1, and the servo motor 2 16 is started to drive the rotating shaft 17 to rotate. When the rotating shaft 17 rotates, the stirring rod 18 is driven to rotate to stir the battery slurry more evenly and further disperse the internal bubbles, thereby increasing the dispersion rate. After the battery slurry passes through the filter screen 19, the size of the bubbles in the battery slurry can be reduced, which is convenient for the vacuum pipe 20 to absorb the bubbles in the battery slurry. When the bubbles in the battery slurry are degassed, the solenoid valve 1, the solenoid valve 2, the solenoid valve 3 and the solenoid valve 4 are closed, and the vacuum pipe 20 is connected to a vacuum machine. The gas in the containing tank body 1 is extracted by starting the vacuum machine to eliminate the bubbles in the battery slurry. When the elimination is completed, the battery slurry is discharged through the discharge port 12.

[0028] The above embodiments are only used to illustrate the technical solution of the present invention, but not to limit it.

Claims

1. A degassing and grinding device for lithium battery slurry, characterized in that: The invention comprises a containing tank body (1), a grinding box (2) is fixedly mounted on the top of the containing tank body (1), a slurry hopper (3) is fixedly connected to the top of the grinding box (2), a grinding roller (6) is mounted inside the grinding box (2), two grinding rollers (6) are provided with grinding grooves (7) on the outer walls of the two grinding rollers (6), the grinding grooves (7) on the two grinding rollers (6) are in meshing contact, the two grinding rollers (6) are rotatably connected to the inside of the grinding box (2) at both ends, one end of the two grinding rollers (6) passes through the grinding box (2) and extends to the outside of the grinding box (2), and a transmission gear (8) is fixedly sleeved on this end, and the two transmission gears (8) are meshed with each other.

2. The degassing and grinding equipment for lithium battery slurry according to claim 1, characterized in that: A fixed block (4) is fixedly connected to the top of the containing tank body (1), a servo motor (5) is fixedly installed on the top of the fixed block (4), and an output end of the servo motor (5) is fixedly connected to an end of one of the grinding rollers (6) extending to the outside of the grinding box (2).

3. The degassing and grinding equipment for lithium battery slurry according to claim 1, characterized in that: The grinding box (2) is connected to the containing tank body (1) via a feed pipe (9), an electromagnetic valve (1) is installed on the outer wall of the feed pipe (9), the bottom of the grinding box (2) close to one end of the feed pipe (9) is lower than the end away from the feed pipe (9), and the bottom of the grinding box (2) is inclined.

4. The degassing and grinding equipment for lithium battery slurry according to claim 1, characterized in that: A discharge pipe (10) is fixedly connected to the lower end of one side of the outer wall of the containing tank body (1); the discharge pipe (10) is connected to a diverter pipe (11) at one end away from the containing tank body (1); one end of the diverter pipe (11) is connected to a discharge port (12); a second solenoid valve is installed on the outer wall of the discharge port (12); the other end of the diverter pipe (11) is connected to a second feed pipe (14); a third solenoid valve is installed on the outer wall of the second feed pipe (14); the other end of the second feed pipe (14) is connected to the slurry hopper (3); and the outer wall of the second feed pipe (14) is connected to a suction pump (15).

5. The degassing and grinding equipment for lithium battery slurry according to claim 1, characterized in that: The bottom of the container tank (1) is lower at one end close to the discharge pipe (10) than at another end away from the discharge pipe (10), and the bottom of the container tank (1) is inclined.

6. The degassing and grinding equipment for lithium battery slurry according to claim 1, characterized in that: A servo motor 2 (16) is fixedly mounted on the side of the containing tank body (1) away from the discharge pipe (10); the output end of the servo motor 2 (16) passes through and extends to the containing tank body (1); the output end of the servo motor 2 (16) is fixedly connected to a rotating shaft (17); the other end of the rotating shaft (17) is rotatably connected to the inside of the containing tank body (1) away from the servo motor 2 (16); a plurality of stirring rods (18) are fixedly mounted on the outer wall of the rotating shaft (17); and a filter screen (19) is fixedly mounted on the inside of the containing tank body (1) below the stirring rods (18).

7. The degassing and grinding equipment for lithium battery slurry according to claim 3, characterized in that: A vacuum pipe (20) is provided at one end of the top of the containing tank body (1), and the vacuum pipe (20) is connected to the containing tank body (1). An exhaust pipe (21) is provided at the top of the containing tank body (1) between the vacuum pipe (20) and the feed pipe (9), and the exhaust pipe (21) is connected to the containing tank body (1). A solenoid valve (4) is installed on the outer wall of the containing tank body (1).

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