CN118059579A - Slurry recycling assembly and method for lithium battery diaphragm coating - Google Patents

Abstract

The invention relates to the technical field of lithium batteries, and particularly discloses a slurry recovery assembly and a slurry recovery method for coating a lithium battery diaphragm, wherein the slurry recovery assembly comprises the following steps of; the support is fixedly arranged outside the top end of the base; the top plate is fixedly arranged at the top end of the bracket; the mounting frame is fixedly arranged at one side of the top end of the top plate; the storage box is fixedly arranged on the inner side of the mounting frame; the filtering mechanism is arranged at the bottom end of the top plate; the oscillation mechanism is arranged at the outer side of the top end of the top plate; the left and right sides on the top of base all is fixed and is provided with the recycling bin. The filter mechanism is arranged to alternately replace the filter frames and the filter screens at two sides, so that the filter saturation of the filter screens is reduced, unfiltered slurry can be distinguished and recovered by controlling the overturning of the filter screens, the filter screens are cleaned, and the maintenance cost is reduced.

Description

A slurry recovery component and method for lithium battery diaphragm coating

Technical Field

The present invention relates to the technical field of lithium batteries, and in particular to a slurry recovery component and method for lithium battery diaphragm coating.

Background technique

Lithium-ion batteries are widely used in electronic products, power drives, energy storage and other fields due to their excellent electrical properties, long service life, green environmental protection and other advantages. The diaphragm is an important component of lithium batteries. Traditional lithium battery diaphragms are mainly polyethylene or polypropylene diaphragms, but their heat resistance and wettability to electrolytes limit their application range. Therefore, ceramic coated diaphragms came into being. Ceramic coating can greatly improve the heat resistance and wettability of polyethylene or polypropylene diaphragms to electrolytes. Ceramic coated diaphragms replace ordinary diaphragms. It is an inevitable choice for large batteries with high energy and high power. It is also a comprehensive need of the market and technology. In order to avoid waste, it is often necessary to recycle the used revolutionary coated slurry; after the slurry is recovered, the slurry needs to be filtered. Although the existing slurry recovery device has a filtering function, the number of slurry agglomerates after use is large, which can easily accelerate the clogging of the filter screen, resulting in poor filtering effect, high maintenance cost, and slow slurry filtering and recovery speed.

Summary of the invention

The object of the present invention is to provide a slurry recovery component and method for lithium battery separator coating to solve the problems raised in the above background technology.

To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a slurry recovery component for lithium battery diaphragm coating, comprising: a base, a bracket, a top plate, a mounting frame, a material storage box, a filtering mechanism, an oscillating mechanism, a recovery barrel, a solenoid valve and a material pipe; the bracket is fixedly arranged on the outer side of the top end of the base; the top plate is fixedly arranged on the top end of the bracket; the mounting frame is fixedly arranged on one side of the top end of the top plate; the material storage box is fixedly arranged on the inner side of the mounting frame; the filtering mechanism is arranged at the bottom end of the top plate; the oscillating mechanism is arranged on the outer side of the top end of the top plate; recovery barrels are fixedly arranged on both sides of the top end of the recovery barrel base; the bottom end of the solenoid valve material storage box is locked with a solenoid valve by screws; the material pipe is fixedly arranged on one side of the bottom end of the top plate, and the top end of the discharge pipe extends out of the upper surface of the top plate and is interference fit with the bottom end of the solenoid valve.

Preferably, the discharge pipe is located directly above one of the recovery barrels.

Preferably, the filtering mechanism includes: a stepper motor, which is fixedly arranged in the middle of the top end of the top plate; the output end of the stepper motor extends out of the bottom end of the top plate and is fixedly arranged with a strip shell; the rotating shaft is fixedly arranged at the bottom end of the strip shell, and the bottom end of the rotating shaft is rotatably arranged at the top end of the base through a bearing; rotating rods are rotatably arranged on the left and right sides of the strip shell through bearings; the first bevel gear is keyed to one end of the rotating rod; a servo motor is fixedly arranged on the front and back sides of the strip shell; the output end of the servo motor extends into the inner cavity of the strip shell and is keyed to the second bevel gear, and the second bevel gear is meshed with the first bevel gear; a strip groove is opened on one side of the strip column, and one end of the rotating rod is plugged into the inner cavity of the strip groove; the filter frame is fixedly arranged on one side of the strip column; the filter screen is fixedly arranged on the inner side of the filter frame.

Preferably, guide rods are fixedly provided on both upper and lower sides of the inner cavity of the strip groove, one end of the rotating rod is adapted to be plugged into the guide rod, springs are fixedly provided on both upper and lower sides of the guide rod, and one end of the spring is fixedly provided on the inner side of the strip groove.

Preferably, a through hole is opened on one side of the top end of the top plate, and the filter frame located on one side is located between the through hole and the recovery barrel.

Preferably, the filter frame on the other side is located between the discharge pipe and the recovery barrel on the other side.

Preferably, the oscillation mechanism includes: a cylindrical shell, with cylindrical shells fixedly arranged on both the left and right sides of the top of the top plate; a driving motor fixedly arranged on the top of the cylindrical shell; the output end of the driving motor extends into the inner cavity of the cylindrical shell and is fixedly arranged with a circular column; the outer wall of the circular column is provided with a serpentine groove along the circumferential direction, and sliders are inserted on both the left and right sides of the inner cavity of the serpentine groove; an insertion rod is fixedly arranged on the outside of the slider; the bottom end of the insertion rod extends out of the bottom end of the top plate, and a connecting plate is fixedly arranged on the bottom end of the insertion rod; a vibration column is fixedly arranged on the bottom end of the connecting plate; a toggle plate is fixedly arranged on one side of the outer wall of the filter frame, and the vibration column is located directly above the toggle plate.

Preferably, the toggle plate is horizontally arranged and located in the middle of one side of the filter frame.

The present invention provides a slurry recovery component and method for lithium battery diaphragm coating, which has the following beneficial effects:

1. The present invention can alternately replace the filter frames and filter screens on both sides by providing a filtering mechanism to reduce the filtering saturation of the filter screen, and can distinguish and recover the unfiltered slurry by controlling the flipping of the filter screen, and clean the filter screen to reduce maintenance costs.

2. The present invention is equipped with an oscillation mechanism to control the reciprocating movement of the vibration column up and down to oscillate the toggle plate, so that the filter screen and the filter screen can oscillate up and down through the cooperation of the strip column and the spring, thereby not only accelerating the filtering effect of the filter screen on one side, but also accelerating the cleaning effect of the filter screen on the other side on the unfiltered slurry.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG1 is a schematic structural diagram of the present invention.

FIG. 2 is a front cross-sectional view of the present invention.

FIG. 3 is an enlarged view of point A in FIG. 2 of the present invention.

FIG. 4 is an enlarged view of point B in FIG. 2 of the present invention.

FIG. 5 is a top cross-sectional view of the strip shell of the present invention.

FIG. 6 is a schematic diagram of the explosion structure of the oscillating mechanism of the present invention.

In the figure: 1. base; 2. bracket; 3. top plate; 4. mounting frame; 5. storage box; 6. filtering mechanism; 61. stepping motor; 62. strip shell; 63. rotating shaft; 64. rotating rod; 65. first bevel gear; 66. servo motor; 67. second bevel gear; 68. strip column; 69. strip groove; 610. filter frame; 611. filter screen; 612. guide rod; 613. spring; 614. through hole; 7. oscillation mechanism; 71. cylindrical shell; 72. driving motor; 73. circular column; 74. slider; 75. serpentine groove; 76. plug rod; 77. connecting plate; 78. vibration column; 79. toggle plate; 8. recovery barrel; 9. solenoid valve; 10. discharge pipe.

Detailed ways

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 described embodiments 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 creative work are within the scope of protection of the present invention.

Please refer to Figures 1-6. The present invention provides a technical solution: a slurry recovery component and method for lithium battery diaphragm coating, and provides a slurry recovery component for lithium battery diaphragm coating, including: a base 1, a bracket 2, a top plate 3, a mounting frame 4, a storage box 5, a filtering mechanism 6, an oscillating mechanism 7, a recovery barrel 8, a solenoid valve 9 and a discharge pipe 10; the bracket 2 is fixedly arranged on the outer side of the top end of the base 1, the top plate 3 is fixedly arranged on the top end of the bracket 2, the mounting frame 4 is fixedly arranged on one side of the top end of the top plate 3, the storage box 5 is fixedly arranged on the inner side of the mounting frame 4, the filtering mechanism 6 is arranged at the bottom end of the top plate 3, the oscillating mechanism 7 is arranged on the outer side of the top end of the top plate 3, and the recovery barrel 8 is fixedly arranged on both sides of the top end of the base 1. The bottom end of the storage box 5 is locked with a solenoid valve 9 by screws. The solenoid valve 9 can control the intermittent automatic discharge of the slurry. The discharge pipe 10 is fixedly arranged on one side of the bottom end of the top plate 3, and the top end of the discharge pipe 10 extends out of the upper surface of the top plate 3 and is interference fit with the bottom end of the solenoid valve 9.

As a preferred solution, further, the discharge pipe 10 is located directly above one of the recovery barrels 8 so that the slurry can fall into the recovery barrel 8.

As a preferred embodiment, further, the filtering mechanism 6 includes: a stepper motor 61, a bar shell 62, a rotating shaft 63, a rotating rod 64, a first bevel gear 65, a servo motor 66, a second bevel gear 67, a bar column 68, a bar groove 69, a filter frame 610, a filter screen 611, a guide rod 612 and a spring 613.

In order to enable the filters 611 on both sides to be used alternately, the stepper motor 61 is fixedly arranged in the middle of the top of the top plate 3, the output end of the stepper motor 61 extends out of the bottom end of the top plate 3 and is fixedly arranged with a strip shell 62, the rotating shaft 63 is fixedly arranged at the bottom end of the strip shell 62, and the bottom end of the rotating shaft 63 is rotatably arranged at the top end of the base 1 through a bearing.

In order to control the flipping of the filter frame 610 and the filter screen 611, a rotating rod 64 is rotatably arranged on the left and right sides of the strip shell 62 through bearings, and a first bevel gear 65 is keyed to one end of the rotating rod 64. A servo motor 66 is fixedly arranged on the front and rear sides of the strip shell 62. The output end of the servo motor 66 extends into the inner cavity of the strip shell 62 and is keyed to the second bevel gear 67, and the second bevel gear 67 is meshed with the first bevel gear 65. A strip groove 69 is provided on one side of the strip column 68, and one end of the rotating rod 64 is plugged into the inner cavity of the strip groove 69. The filter frame 610 is fixedly arranged on one side of the strip column 68, and the filter screen 611 is fixedly arranged on the inner side of the filter frame 610. The servo motor 66 can drive the second bevel gear 67 to rotate 180 degrees clockwise, so that the second bevel gear 67 drives the first bevel gear 65 to rotate 180 degrees, thereby driving the rotating rod 64 to rotate, so as to flip the filter frame 610 180 degrees.

In order to enable the filter frame 610 and the filter screen 611 to vibrate, guide rods 612 are fixedly provided on the upper and lower sides of the inner cavity of the strip groove 69, one end of the rotating rod 64 is adapted to be plugged into the guide rod 612, and springs 613 are fixedly provided on the upper and lower sides of the guide rod 612, and one end of the spring 613 is fixedly provided on the inner side of the strip groove 69.

As a preferred solution, further, a through hole 614 is opened on one side of the top end of the top plate 3, and the filter frame 610 located on one side is located between the through hole 614 and the recovery barrel 8, and the filter frame 610 can be flipped by opening the through hole 614.

As a preferred solution, further, the filter frame 610 on the other side is located between the discharge pipe 10 and the recovery barrel 8 on the other side to filter the slurry dropped from the discharge pipe 10 .

As a preferred solution, further, the oscillation mechanism 7 includes: a cylindrical shell 71, a driving motor 72, a circular column 73, a slider 74, a serpentine groove 75, an insertion rod 76, a connecting plate 77, a vibration column 78 and a toggle plate 79.

In order to control the vibration column 78 to oscillate the toggle plate 79, a cylindrical shell 71 is fixedly provided on both sides of the top of the top plate 3, and a drive motor 72 is fixedly provided on the top of the cylindrical shell 71. The output end of the drive motor 72 extends into the inner cavity of the cylindrical shell 71 and is fixedly provided with a circular column 73.

In order to be able to control the reciprocating up and down movement of the insertion rod 76, a serpentine groove 75 is opened in the outer wall of the circular column 73 along the circumferential direction, and sliders 74 are inserted on the left and right sides of the inner cavity of the serpentine groove 75. The insertion rod 76 is fixedly set on the outer side of the slider 74, and the bottom end of the insertion rod 76 extends out of the bottom end of the top plate 3, and a connecting plate 77 is fixedly set at the bottom end of the insertion rod 76. During the rotation of the circular column 73, the inner wall of the serpentine groove 75 can push the slider 74 to move, so that the slider 74 moves along the inner cavity of the serpentine groove 75, so that the insertion rod 76 can reciprocate up and down under the restriction of the slider 74 and the serpentine groove 75.

In order to drive the filter frame 610 to vibrate, the vibration column 78 is fixedly set at the bottom end of the connecting plate 77, and a toggle plate 79 is fixedly set on one side of the outer wall of the filter frame 610, and the vibration column 78 is located directly above the toggle plate 79. The toggle plate 79 is horizontally set and located in the middle position of one side of the filter frame 610, so that after the filter frame 610 is flipped 180 degrees, the vibration column 78 can still act on the toggle plate 79.

A method for using a slurry recovery component for lithium battery diaphragm coating, comprising the following steps:

Step 1: The slurry is stored in the storage box 5, and the solenoid valve 9 is controlled to start. After the solenoid valve 9 is turned on, the slurry in the storage box 5 can fall into the filter screen 611 through the discharge pipe 10, and is filtered through the filter screen 611 into the recovery bucket 8 for collection;

Step 2: When the filter screen 611 on one side needs to be cleaned, the solenoid valve 9 is controlled to be closed, and the stepper motor 61 is started. After the stepper motor 61 is started, it can drive the strip shell 62 and the rotating shaft 63 to rotate 180 degrees clockwise around its own axis, so that the filter frames 610 and the filter screen 611 on the left and right sides are alternated with each other, and the solenoid valve 9 is started to continue filtering the slurry;

Step 3: Start the servo motor 66 on one side, so that the servo motor 66 drives the second bevel gear 67 to rotate 180 degrees clockwise, so that the second bevel gear 67 drives the first bevel gear 65 to rotate 180 degrees, so as to drive the rotating rod 64 to rotate, so as to flip the filter frame 610 180 degrees, so that the unfiltered slurry on the filter screen 611 falls into another recovery bucket 8, so as to clean the filter screen 611;

Step 4: Start the drive motor 72. The drive motor 72 can drive the circular column 73 to rotate around its own axis. During the rotation of the circular column 73, the inner wall of the serpentine groove 75 can push the slider 74 to move, so that the slider 74 moves along the inner cavity of the serpentine groove 75, so that the insertion rod 76 can move back and forth up and down under the restriction of the slider 74 and the serpentine groove 75, so as to drive the connecting plate 77 and the vibration column 78 to move up and down, and the toggle plate 79 is turned to make the filter frame 610 oscillate up and down under the restriction of the strip column 68 and the spring 613, thereby accelerating the falling efficiency of the unfiltered slurry on one of the filter screens 611 and improving the cleaning effect. When vibrating the other filter screen 611, the filtering effect of the other filter screen 611 is improved, and the filtering speed is increased.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims (9)

1. A slurry recovery assembly for coating a lithium battery separator, comprising;

A base (1);

the bracket (2) is fixedly arranged on the outer side of the top end of the base (1);

The top plate (3) is fixedly arranged at the top end of the bracket (2);

The mounting frame (4) is fixedly arranged on one side of the top end of the top plate (3);

the storage box (5) is fixedly arranged on the inner side of the mounting frame (4);

the filtering mechanism (6) is arranged at the bottom end of the top plate (3);

The vibration mechanism (7) is arranged outside the top end of the top plate (3);

The recycling bin (8) is fixedly arranged on the left side and the right side of the top end of the base (1);

The bottom end of the storage box (5) is locked with the electromagnetic valve (9) through a screw;

The discharging pipe (10) is fixedly arranged on one side of the bottom end of the top plate (3), and the top end of the discharging pipe (10) extends out of the upper surface of the top plate (3) and is in interference fit with the bottom end of the electromagnetic valve (9).

2. The slurry recovery assembly for coating a lithium battery separator according to claim 1, wherein the discharge pipe (10) is located directly above one of the recovery barrels (8).

3. A slurry recovery assembly for lithium battery separator coating according to claim 2, characterized in that the filter mechanism (6) comprises:

the stepping motor (61) is fixedly arranged in the middle of the top end of the top plate (3);

the output end of the stepping motor (61) extends out of the bottom end of the top plate (3) and is fixedly provided with the strip-shaped shell (62);

the rotating shaft (63) is fixedly arranged at the bottom end of the strip-shaped shell (62), and the bottom end of the rotating shaft (63) is rotatably arranged at the top end of the base (1) through a bearing;

the rotating rod (64) is rotatably arranged on the left side and the right side of the strip-shaped shell (62) through bearings;

a first bevel gear (65) keyed to one end of the rotating rod (64);

the servo motors (66) are fixedly arranged on the front side and the rear side of the strip-shaped shell (62);

The output end of the servo motor (66) extends into the inner cavity of the strip-shaped shell (62) and is connected with the second conical gear (67) in a key way, and the second conical gear (67) is meshed with the first conical gear (65);

The device comprises a bar-shaped column (68), wherein a bar-shaped groove (69) is formed in one side of the bar-shaped column (68), and one end of the rotating rod (64) is spliced with the inner cavity of the bar-shaped groove (69);

a filter frame (610) fixedly arranged on one side of the bar-shaped column (68);

the filter screen (611) is fixedly arranged on the inner side of the filter frame (610).

4. The slurry recycling assembly for coating the lithium battery diaphragm according to claim 3, wherein guide rods (612) are fixedly arranged on the upper side and the lower side of the inner cavity of the strip-shaped groove (69), one end of the rotating rod (64) is connected with the guide rods (612) in an adaptive manner, springs (613) are fixedly arranged on the upper side and the lower side of the guide rods (612), and one end of each spring (613) is fixedly arranged on the inner side of the strip-shaped groove (69).

5. The slurry recycling assembly for coating lithium battery separator according to claim 4, wherein a through hole (614) is formed on one side of the top end of the top plate (3), and the filtering frame (610) on one side is located between the through hole (614) and the recycling bin (8).

6. The slurry recovery assembly for coating a lithium battery separator according to claim 5, wherein the filter frame (610) is located at the other side between the discharge pipe (10) and the other side recovery tank (8).

7. The slurry recovery assembly for coating a lithium battery separator according to claim 6, wherein the oscillating mechanism (7) comprises:

The cylindrical shells (71) are fixedly arranged on the left side and the right side of the top end of the top plate (3);

A driving motor (72) fixedly arranged at the top end of the cylindrical shell (71);

The output end of the driving motor (72) extends into the inner cavity of the cylindrical shell (71) and is fixedly provided with the circular column (73);

The sliding block (74), the outer wall of the circular column (73) is provided with a snake-shaped groove (75) along the circumferential direction, and the sliding block (74) is inserted into the left side and the right side of the inner cavity of the snake-shaped groove (75);

The inserted link (76) is fixedly arranged on the outer side of the sliding block (74);

the bottom end of the inserted link (76) extends out of the bottom end of the top plate (3), and the bottom end of the inserted link (76) is fixedly provided with the connecting plate (77);

The vibration column (78) is fixedly arranged at the bottom end of the connecting plate (77);

toggle plate (79), outer wall one side of filter frame (610) is fixed to be provided with toggle plate (79), just vibrations post (78) are located toggle plate (79) directly over.

8. The slurry recycling assembly for coating a lithium battery separator according to claim 7, wherein the toggle plate (79) is horizontally arranged and is positioned at a side middle position of the filter frame (610).

9. The method of using a slurry recovery assembly for coating a separator of a lithium battery according to claim 8, comprising the steps of:

Step one: storing the slurry in a storage box (5), controlling an electromagnetic valve (9) to start, enabling the slurry in the storage box (5) to fall into a filter screen (611) through a discharge pipe (10) after the electromagnetic valve (9) is opened, and filtering the slurry into a recycling bin (8) through the filter screen (611) for collection;

Step two: when one side filter screen (611) needs to be cleaned, the electromagnetic valve (9) is controlled to be closed, the stepping motor (61) is started, the stepping motor (61) can drive the strip-shaped shell (62) and the rotating shaft (63) to rotate clockwise (180) around the axis of the stepping motor (61), so that the filter frames (610) on the left side and the filter screen (611) on the right side are alternated with each other, and the electromagnetic valve (9) is started to continuously filter slurry;

Step three: starting a servo motor (66) at one side, so that the servo motor (66) drives a second bevel gear (67) to rotate clockwise (180 degrees), the second bevel gear (67) drives a first bevel gear (65) to rotate (180 degrees) to drive a rotating rod (64) to rotate, a filter frame (610) is overturned (180 degrees), and therefore unfiltered slurry on a filter screen (611) falls into another recycling bin (8);

Step four, a step four is carried out; starting driving motor (72), driving motor (72) can drive round post (73) to rotate around self axis, at the rotation in-process of round post (73), the inner wall of snakelike groove (75) can promote slider (74) and remove, make slider (74) remove along the inner chamber of snakelike groove (75), so that inserted bar (76) reciprocate under the restriction of slider (74) and snakelike groove (75), with drive connecting plate (77) and vibrations post (78) reciprocate, stir toggle plate (79) and make filter frame (610) vibrate from top to bottom under the restriction of bar post (68) and spring (613), thereby accelerate the dropping efficiency of unfiltered slurry on one of them filter screen (611), when vibrating another filter screen (611), in order to improve the filter effect to another filter screen (611).