CN219539507U

CN219539507U - Battery slurry defoaming device

Info

Publication number: CN219539507U
Application number: CN202320288854.9U
Authority: CN
Inventors: 李忠华
Original assignee: Shanghai Lanjun New Energy Technology Co Ltd
Current assignee: Shanghai Lanjun New Energy Technology Co Ltd
Priority date: 2023-02-22
Filing date: 2023-02-22
Publication date: 2023-08-18
Anticipated expiration: 2033-02-22

Abstract

The utility model provides a battery slurry defoaming device which comprises a charging basket, a stirring paddle, a stirring driving mechanism and a charging basket driving mechanism, wherein the charging basket is arranged on the charging basket; the stirring paddle is positioned in the charging basket, and the stirring driving mechanism is used for driving the stirring paddle to rotate; the charging basket driving mechanism is used for driving the charging basket to rotate along the central axis; the rotation direction of the stirring paddle is opposite to the rotation direction of the charging basket. When the anti-foam device is used, negative electrode slurry is added into the charging basket, the stirring driving mechanism drives the stirring paddle to rotate in the charging basket so as to stir the slurry, and meanwhile, the charging basket driving mechanism drives the charging basket to rotate towards the opposite direction of the stirring paddle, so that the slurry is subjected to shearing force in different directions, and the tension of bubbles is broken so as to break, so that the bubbles in the slurry are effectively removed, and the anti-foam effect is improved.

Description

Battery slurry defoaming device

Technical Field

The utility model relates to the technical field of batteries, in particular to a battery slurry defoaming device.

Background

The battery cathode slurry can generate bubbles in the pulping process and the transportation process, if the bubbles cannot be eliminated in time, the coated pole piece foil exposure can be caused, the qualification rate of the coating process is greatly influenced, and particularly, the cathode foil exposure can cause lithium dendrite on the surface of a cathode in the circulation process of the battery, so that the diaphragm is pierced to cause internal short circuit of the battery.

In the prior art, defoaming of slurry is generally realized by vacuumizing a sizing machine and a transfer tank to generate negative pressure. However, bubbles still exist in the negative electrode slurry after defoaming in this way, and the defoaming effect is poor.

Disclosure of Invention

In view of the above, the present utility model proposes a battery paste defoaming device to overcome or at least partially solve the above problems.

The utility model provides a battery slurry defoaming device which comprises a charging basket, a stirring paddle, a stirring driving mechanism and a charging basket driving mechanism, wherein the charging basket is arranged on the charging basket; the stirring paddle is positioned in the charging basket, and the stirring driving mechanism is used for driving the stirring paddle to rotate; the charging basket driving mechanism is used for driving the charging basket to rotate along the central axis of the charging basket; the rotation direction of the stirring paddle is opposite to the rotation direction of the charging basket.

Further, a reinforcing part is arranged in the charging basket; the reinforcing part is used for reinforcing acting force between the slurry and the stirring paddle.

Further, the reinforcing part is a reinforcing plate; the reinforcing plate is arranged along the axial direction of the charging basket.

Further, one end of the reinforcing plate is fixed to the inner side wall of the charging basket.

Further, one surface of the reinforcing plate is an inclined surface; the inclined plane is used for enhancing acting force between the slurry and the stirring paddle.

Further, the inclined surface of the reinforcing plate is inclined toward the other surface of the reinforcing plate.

Further, the inclined plane of the reinforcing plate and the other surface of the reinforcing plate form an included angle of 45 degrees.

Further, a defoaming needle is arranged on the inclined plane.

Further, the upper end of the charging basket is provided with an opening; the charging basket is sleeved with a protection barrel; the protection barrel is a closed shell; the barrel is rotatable within the protective barrel.

Further, a feed inlet is formed in the upper end of the protection barrel; a feeding pipeline is arranged at the feeding port; the charging basket with the protection bucket bottom is equipped with the discharge gate, discharge gate department is equipped with the discharge pipeline.

When the battery slurry defoaming device is used, negative electrode slurry is added into the charging basket, the stirring driving mechanism drives the stirring paddle to rotate in the charging basket so as to stir the slurry, and meanwhile, the charging basket driving mechanism drives the charging basket to rotate towards the opposite direction of the rotation of the stirring paddle, so that the interior of the slurry is subjected to shearing forces in different directions, and the tension of bubbles is broken so as to break, so that bubbles in the slurry are effectively removed, and the defoaming effect is improved.

Drawings

Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the utility model. Also, like reference numerals are used to designate like parts throughout the figures. In the drawings:

FIG. 1 shows a schematic diagram of a battery slurry defoaming device in one embodiment;

FIG. 2 shows a perspective view of the bowl of FIG. 1;

FIG. 3 illustrates another perspective view of the bowl of FIG. 1;

fig. 4 shows a top view of the bowl of fig. 1.

The device comprises a 1-vacuum pipeline, a 2-stirring driving mechanism, a 3-stirring paddle, a 4-feeding pipeline, a 5-protection barrel, a 6-reinforcing plate, a 7-charging barrel, an 8-charging barrel driving mechanism, a 9-base, a 10-discharging pipeline, an 11-valve, a 12-inclined plane and a 13-defoaming needle.

Detailed Description

Reference now will be made in detail to embodiments of the utility model, one or more examples of which are illustrated in the drawings. Each example is provided by way of explanation, not limitation, of the utility model. Indeed, it will be apparent to those skilled in the art that various modifications and variations can be made in the present utility model without departing from the scope or spirit of the utility model. For example, features illustrated or described as part of one embodiment can be used with another embodiment to yield a still further embodiment. Accordingly, it is intended that the present utility model cover such modifications and variations as come within the scope of the appended claims and their equivalents. As used in this specification, the terms "first," "second," and the like are used interchangeably to distinguish one component from another and are not intended to represent the location or importance of the respective components. As used in this specification, the terms "a," "an," "the," and "said" are intended to mean that there are one or more elements unless the context clearly indicates otherwise. The terms "comprising," "including," and "having" are intended to be inclusive and mean that there may be additional elements other than the listed elements. Wherein like numerals refer to like elements throughout, the present utility model is further explained below in connection with specific embodiments.

Referring to fig. 1 to 4, fig. 1 is a schematic structural diagram of a battery paste defoaming device according to an embodiment; FIG. 2 shows a perspective view of the bowl of FIG. 1; FIG. 3 illustrates another perspective view of the bowl of FIG. 1; fig. 4 shows a top view of the bowl of fig. 1.

As shown in fig. 1 to 4, the present utility model provides a battery slurry defoaming device, which comprises a charging basket 7, a stirring paddle 3, a stirring driving mechanism 2 and a charging basket driving mechanism 8; the stirring paddle 3 is positioned in the charging basket 7, and the stirring driving mechanism 2 is used for driving the stirring paddle 3 to rotate; the charging basket driving mechanism 8 is used for driving the charging basket 7 to rotate along the central axis; the rotation direction of the stirring paddle 3 is opposite to the rotation direction of the charging basket 7. During the use, add negative pole thick liquids to in the storage bucket 7, thereby stirring actuating mechanism 2 drive stirring rake 3 rotate in storage bucket 7 stirring thick liquids, simultaneously, storage bucket actuating mechanism 8 drive storage bucket 7 revolve to opposite direction rotation towards stirring rake 3 for the thick liquids is inside to receive different direction shearing force, thereby breaks open bubble tension and breaks, effectively clears away the inside bubble of thick liquids, improves defoaming effect.

Wherein, stirring paddle 3 can be coincident with the central axis of charging basket 7, or not be located on the central axis. Preferably, the paddles 3 coincide with the central axis of the bowl 7, which increases the size of the paddles 3 and thus the crushing effect.

The stirring driving mechanism 2 and the bucket driving mechanism 8 may be of various structural forms, for example: the stirring driving mechanism 2 and the charging basket driving mechanism 8 are respectively a stirring motor and a charging basket motor, a power output shaft of the stirring motor is fixed with the stirring paddle 3, and a power output shaft of the charging basket motor is fixed with the center of the charging basket 7. Of course, the stirring motor and the charging basket motor can be respectively fixed with the stirring paddle 3 and the charging basket 7 through the speed reducing mechanism, and a user can specifically set the stirring motor and the charging basket motor according to the needs.

On the basis of the embodiment, further, a reinforcing part is arranged in the charging basket 7; the reinforcing part is used for enhancing acting force between the slurry and the stirring paddle 3, so that shearing force received by the slurry is improved, and the defoaming effect is further improved.

The reinforcing part may have various structural forms, for example: the reinforcing part is a reinforcing net which is arranged along the axial direction of the charging basket 7. Preferably, the reinforcement is a reinforcement plate 6; the reinforcing plate 6 is arranged along the axial direction of the charging basket 7. The reinforcing plate 6 may be fixed on the inner bottom wall or the inner side wall of the bucket 7, preferably, one end of the reinforcing plate 6 is fixed with the inner side wall of the bucket 7, so that the reinforcing plate 6 is far away from the stirring paddle 3, and collision between the reinforcing plate 6 and the stirring paddle is avoided. The reinforcing plate 6 is strip-shaped, and the reinforcing plate 6 is parallel to the central shaft of the charging basket 7.

Preferably, the reinforcing plates 6 are plural, and the plural reinforcing plates 6 are sequentially arranged at intervals along the circumferential direction of the bucket 7. The plurality of reinforcing plates 6 are used simultaneously, so that defoaming efficiency is greatly improved.

Further, on the basis of the above embodiment, one surface of the reinforcing plate 6 is an inclined surface 12; the inclined surface 12 is used to enhance the force between the slurry and the stirring paddle 3. I.e. as shown in fig. 4, the bowl 7 rotates clockwise and the bevel 12 is located on one side as shown in fig. 4. The position at which the inclined surface 12 is provided depends on the direction of rotation of the bowl 7, when the bowl 7 rotates anticlockwise, the inclined surface 12 is positioned on the other side as shown in figure 4.

Preferably, the inclined surface 12 of the reinforcing plate 6 is inclined toward the other surface of the reinforcing plate 6, so that the reinforcing effect of the reinforcing plate 6 can be increased, and the defoaming effect can be further improved.

Preferably, the inclined surface 12 of the reinforcing plate 6 forms an angle of 45 ° with the other surface of the reinforcing plate 6, and the defoaming effect is optimal.

Further, on the basis of the above embodiment, the foam removing needle 13 is provided on the inclined surface 12, and when the reinforcing plate 6 rotates, the foam removing needle 13 pierces the contacted air bubbles.

Further, on the basis of the embodiment, the upper end of the charging basket 7 is opened; the material barrel 7 is sleeved with a protection barrel 5; the protection tub 5 is a closed housing, and the charging basket 7 can rotate in the protection tub 5. The protection barrel 5 plays a role in protecting the charging basket 7, and external impurities are prevented from entering the charging basket 7 or slurry in the charging basket 7 is prevented from splashing.

On the basis of the embodiment, further, the upper end of the protection barrel 5 is provided with a feed inlet; a feeding pipeline 4 is arranged at the feeding port; the bottoms of the charging basket 7 and the protection barrel 5 are provided with discharge holes, and the discharge holes are provided with discharge pipelines 10. The slurry is fed into the bowl 7 through the feed line 4 and is discharged through the discharge line 10 after the defoaming operation is completed. A valve 11 may be provided on the discharge pipe 10 to open and close the discharge pipe 10.

Further, on the basis of the above embodiment, the agitation driving mechanism 2 is provided above the protection tub 5; the bucket driving mechanism 8 is arranged below the protection bucket 5. The two driving mechanisms are arranged up and down separately, so that the installation is convenient. Of course, the top surface and the bottom surface of the protection barrel 5 are respectively provided with an upper mounting opening and a lower mounting opening, a power output shaft of the stirring driving mechanism 2 penetrates through the upper mounting opening to be connected with the stirring paddle 3, and a power output shaft of the charging barrel driving mechanism 8 penetrates through the lower mounting opening to be connected with the charging barrel 7.

On the basis of the embodiment, further, the protection barrel 5 is provided with a vacuum port; the vacuum port is provided with a vacuum pipeline 1 communicated with the inside of the protection barrel 5. The inside of the protection tub 5 is vacuumized through the vacuum pipe 1 so that the slurry is in a negative pressure state to further eliminate bubbles in the slurry.

On the basis of the above embodiment, further, the present embodiment further includes a base 9, the protection tub 5 is disposed on the base 9, and the tub driving mechanism 8 is also disposed on the base 9.

The foregoing is a preferred embodiment of the present utility model, and other modifications and improvements will occur to those skilled in the art based on the technical scheme and the essence of the present utility model disclosed herein, but these modifications and improvements based on the present utility model shall all be covered by the protection scope of the present utility model. This written description uses examples to disclose the utility model, including the best mode, and also to enable any person skilled in the art to practice the utility model, including making and using any devices or systems and performing any incorporated methods. The patentable scope of the utility model is defined by the claims, and may include other embodiments that occur to those skilled in the art. Such other embodiments are intended to be within the scope of the claims if they include structural elements that do not differ from the literal language of the claims, or if they include equivalent structural elements with insubstantial differences from the literal languages of the claims.

Claims

1. The battery slurry defoaming device is characterized by comprising a charging basket, a stirring paddle, a stirring driving mechanism and a charging basket driving mechanism;

the stirring paddle is positioned in the charging basket, and the stirring driving mechanism is used for driving the stirring paddle to rotate; the charging basket driving mechanism is used for driving the charging basket to rotate along the central axis of the charging basket;

the rotation direction of the stirring paddle is opposite to the rotation direction of the charging basket.

2. The battery slurry defoaming device according to claim 1, wherein a reinforcing part is arranged in the charging basket; the reinforcing part is used for reinforcing acting force between the slurry and the stirring paddle.

3. The battery paste foam apparatus of claim 2, wherein the reinforcement is a reinforcement plate; the reinforcing plate is arranged along the axial direction of the charging basket.

4. A battery slurry defoaming device according to claim 3 wherein one end of the reinforcing plate is fixed to the inner side wall of the barrel.

5. The battery paste foam apparatus as recited in claim 4, wherein one face of the reinforcing plate is a slope; the inclined plane is used for enhancing acting force between the slurry and the stirring paddle.

6. The battery paste foam apparatus of claim 5, wherein the inclined surface of the reinforcing plate is inclined toward the other surface of the reinforcing plate.

7. The battery slurry defoaming device of claim 6 wherein the inclined surface of the reinforcing plate is at an angle of 45 ° to the other surface of the reinforcing plate.

8. The battery paste defoaming device of claim 5 or 6, wherein a defoaming needle is provided on the inclined surface.

9. The battery slurry defoaming device according to claim 1, wherein the upper end of the charging basket is open; the charging basket is sleeved with a protection barrel; the protection barrel is a closed shell; the barrel is rotatable within the protective barrel.

10. The battery paste defoaming device according to claim 9, wherein a feed inlet is formed in the upper end of the protection barrel; a feeding pipeline is arranged at the feeding port; the charging basket with the protection bucket bottom is equipped with the discharge gate, discharge gate department is equipped with the discharge pipeline.