CN220802218U

CN220802218U - Battery slurry filter

Info

Publication number: CN220802218U
Application number: CN202322393329.6U
Authority: CN
Inventors: 赵振兴
Original assignee: Sany Technology Equipment Co Ltd
Current assignee: Sany Technology Equipment Co Ltd
Priority date: 2023-09-04
Filing date: 2023-09-04
Publication date: 2024-04-19
Anticipated expiration: 2033-09-04

Abstract

The utility model discloses a battery slurry filter, which relates to the technical field of battery slurry treatment, and comprises a filter cylinder and a spiral scraping plate, wherein a drain hole is formed in the side wall of the filter cylinder, a stirring cavity is formed in the filter cylinder, a stirring shaft is arranged in the stirring cavity in a penetrating manner, the stirring shaft is positioned on the central axis of the stirring cavity, the spiral scraping plate is arranged in the stirring cavity, the spiral scraping plate is spirally arranged on the stirring shaft as a center and is fixedly connected with the stirring shaft, the outer side wall of the spiral scraping plate is in contact with the inner side wall of the filter cylinder, and the spiral scraping plate rotates together with the stirring shaft, so that particles on the inner wall of the filter cylinder are scraped off and pushed downwards. According to the utility model, by arranging the spiral scraping plate, not only can the particles on the inner wall of the filter cylinder be scraped, but also the particles can be pushed downwards step by step, so that the scraped particles sink effectively in time.

Description

Battery slurry filter

Technical Field

The utility model relates to the technical field of lithium battery production, in particular to a battery slurry filter.

Background

At present, battery slurry is usually filtered by means of a battery slurry filter, the battery slurry filter comprises a filter cylinder, a plurality of drain holes are formed in the side wall of the filter cylinder, after the battery slurry enters the filter cylinder, liquid parts are filtered out outwards through the drain holes, and particle parts are clamped on the inner wall of the filter cylinder. When too much particulate matter adheres to the inner wall of the filter cartridge, the drain hole will be blocked, and the filtering effect will be affected, so a scraping plate is usually arranged in the filter cartridge to scrape off the particulate matter. However, due to the relatively high viscosity and solid content of the battery slurry, the particles are difficult to sink by gravity of the particles after being scraped, so that the particles are suspended in the battery slurry and cannot be effectively settled.

Disclosure of utility model

The utility model mainly aims to provide a battery slurry filter, which aims to solve the problem that particulate matters on the inner wall of a filter cylinder cannot be settled downwards after being scraped.

In order to achieve the above purpose, the battery slurry filter provided by the utility model comprises a filter cylinder and a spiral scraper, wherein a drain hole is formed in the side wall of the filter cylinder, a stirring cavity is formed in the filter cylinder, a stirring shaft is arranged in the stirring cavity in a penetrating manner, the stirring shaft is positioned on the central axis of the stirring cavity, the spiral scraper is arranged in the stirring cavity, the spiral scraper is spirally and fixedly connected with the stirring shaft by taking the stirring shaft as the center, the outer side wall of the spiral scraper is in contact with the inner side wall of the filter cylinder, and the spiral scraper rotates together with the stirring shaft, so that particles on the inner wall of the filter cylinder are scraped off and pushed downwards.

Optionally, the battery slurry filter further comprises a drain cylinder, the drain cylinder is mounted below the filter cylinder, a drain cavity is formed in the drain cylinder, a drain hole which is communicated with the stirring cavity and the drain cavity is formed in the bottom wall of the filter cylinder, and particles in the stirring cavity pass through the drain hole under the pushing of the spiral scraping plate to enter the drain cavity.

Optionally, the blowdown section of thick bamboo includes blowdown fill and blow off pipe, the blowdown fill is the funnel form, the blow off pipe is protruding to be located the lower extreme opening of blowdown fill, be provided with the relief valve on the blow off pipe, particulate matter in the blowdown chamber passes through the relief valve is with outwards discharging.

Optionally, a stirring rod is arranged in the blowdown cavity and is used for stirring slurry in the blowdown cavity so as to prevent particulate matters in the blowdown cavity from blocking the discharge valve.

Optionally, a through hole is formed in the bottom wall of the filter cylinder, and the stirring shaft penetrates through the through hole to be coaxially fixed with the stirring rod.

Optionally, the stirring rod is detachably connected with the stirring shaft.

Optionally, a first connecting rod and a second connecting rod are arranged between the spiral scraping plate and the stirring shaft, one end of the first connecting rod is connected with the starting point of the spiral scraping plate, the other end of the first connecting rod is connected with the stirring shaft, one end of the second connecting rod is connected with the end point of the spiral scraping plate, and the other end of the second connecting rod is connected with the stirring shaft.

Optionally, a plurality of magnetic bars are further arranged in the stirring cavity, the magnetic bars are located in the enclosing area of the spiral scraping plate, the magnetic bars are circumferentially distributed by taking the stirring shaft as a center and are fixedly connected with the stirring shaft, and the magnetic bars rotate along with the stirring shaft to further adsorb iron substances in the slurry.

Optionally, a third connecting rod and a fourth connecting rod are arranged between the magnetic rod and the stirring shaft, and the number of the third connecting rod and the number of the fourth connecting rod are consistent with the number of the magnetic rod; the third connecting rod is arranged on the upper portion of the magnetic rod, one end of the third connecting rod is connected with the magnetic rod, the other end of the third connecting rod is connected with the stirring shaft, the fourth connecting rod is arranged on the lower portion of the magnetic rod, one end of the fourth connecting rod is connected with the magnetic rod, and the other end of the fourth connecting rod is connected with the stirring shaft.

Optionally, a first connecting rod and a second connecting rod are arranged between the spiral scraper and the stirring shaft, one end of the first connecting rod is connected with the starting point of the spiral scraper, the other end of the first connecting rod is connected with the stirring shaft, one end of the second connecting rod is connected with the terminal point of the spiral scraper, and the other end of the second connecting rod is connected with the stirring shaft; the stirring shaft is sleeved with a first sleeve ring and a second sleeve ring, one end, facing the stirring shaft, of the first connecting rod and the third connecting rod is connected with the outer side wall of the first sleeve ring, and one end, facing the stirring shaft, of the second connecting rod and the fourth connecting rod is connected with the outer side wall of the second sleeve ring.

According to the technical scheme, the spiral scraping plate is arranged in the filter cylinder, the spiral scraping plate is screwed from top to bottom by taking the stirring shaft as the center and is fixedly connected with the stirring shaft, the outer side wall of the spiral scraping plate is in contact with the inner side wall of the filter cylinder, the spiral scraping plate can scrape down particles on the inner wall of the filter cylinder in the rotating process, the particles can be pushed downwards step by step, the scraped particles sink down effectively in time, and the problem that the particles on the inner wall of the filter cylinder of the traditional filter cannot sink down after being scraped down is solved.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to the structures shown in these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic view of a battery slurry filter according to an embodiment of the present utility model;

FIG. 2 is a cross-sectional view of one embodiment of a battery slurry filter of the present utility model;

FIG. 3 is a cross-sectional view showing a partial structure of an embodiment of a battery paste filter according to the utility model;

fig. 4 is a partial schematic structure of the battery paste filter according to the utility model.

Reference numerals illustrate:

The achievement of the objects, functional features and advantages of the present utility model will be further described with reference to the accompanying drawings, in conjunction with the embodiments.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

It should be noted that all directional indicators (such as up, down, left, right, front, and rear … …) in the embodiments of the present utility model are merely used to explain the relative positional relationship, movement, etc. between the components in a particular posture (as shown in the drawings), and if the particular posture is changed, the directional indicator is changed accordingly.

Furthermore, the description of "first," "second," etc. in this disclosure is for descriptive purposes only and is not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not within the scope of protection claimed in the present utility model.

To this end, referring to fig. 1 to 4, the present utility model proposes a battery slurry filter 100, which comprises a filter cartridge 1 and a spiral scraper 2, wherein a stirring cavity 11 is formed in the filter cartridge 1, a stirring shaft 51 is penetrated in the stirring cavity 11, the stirring shaft 51 is located on a central axis of the stirring cavity 11, the spiral scraper 2 is located in the stirring cavity 11, the spiral scraper 2 is spirally and fixedly connected with the stirring shaft 51 by taking the stirring shaft 51 as a center, an outer side wall of the spiral scraper 2 is in contact with an inner side wall of the filter cartridge 1, and the spiral scraper 2 rotates together with the stirring shaft 51, so that particles on an inner wall of the filter cartridge 1 are scraped off and pushed downwards.

The battery slurry filter 100 comprises a stirring motor 5, an outer cylinder 3 and a filter cartridge 1, wherein a baffle plate 31 is arranged in a cavity of the outer cylinder 3 to divide the cavity of the outer cylinder 3 into an upper cavity and a lower cavity, a avoidance hole is formed in the baffle plate 31 to be communicated with the upper cavity and the lower cavity, the filter cartridge 1 is arranged in the lower cavity, and a stirring cavity 11 is formed in the filter cartridge 1. The stirring motor 5 is disposed above the outer cylinder 3, and a stirring shaft 51 of the stirring motor 5 penetrates through the upper chamber to extend into the stirring chamber 11 and is located on the central axis of the stirring chamber 11. The diameter of the lower chamber is larger than that of the filter cartridge 1, and thus a drain cavity 34 is formed between the side wall of the lower chamber and the side wall of the filter cartridge 1, wherein the side wall of the upper chamber is provided with a feed inlet 32, the side wall of the filter cartridge 1 is provided with a fine drain hole (not shown in the figure), and the side wall of the lower chamber is provided with a discharge outlet 33. Thus, the battery slurry enters the upper chamber of the outer cylinder 3 from the feed port 32, then enters the stirring chamber 11 of the filter cartridge 1 through the escape port, the slurry in the stirring chamber 11 is stirred by the stirring shaft 51, then enters the drain chamber 34 through the drain hole (not shown in the figure), and finally flows out from the discharge port 33.

It will be appreciated that as the slurry passes through the drain holes (not shown), larger diameter particles and agglomerates cannot pass through the drain holes (not shown) and will become lodged on the walls of the filter cartridge 1. For this reason, this technical scheme has set up spiral scraper blade 2 in straining a section of thick bamboo 1, spiral scraper blade 2 uses (mixing) shaft 51 as the center from top to bottom spiral and with (mixing) shaft 51 fixed connection, and spiral scraper blade 2's lateral wall and strain a section of thick bamboo 1's inside wall contact, spiral scraper blade 2 is at pivoted in-process, not only can scrape down the particulate matter of straining a section of thick bamboo 1 inner wall, can also push down the particulate matter step by step, make the particulate matter that is scraped down subside effectively in time, the unable problem of subsidence down of particulate matter of straining a section of thick bamboo 1 inner wall of traditional filter after being scraped has been solved.

Further, the battery slurry filter 100 further comprises a drain cylinder 4, the drain cylinder 4 is installed below the filter cylinder 1, a drain cavity 41 is formed in the drain cylinder 4, a drain hole 12 which is communicated with the stirring cavity 11 and the drain cavity 41 is formed in the bottom wall of the filter cylinder 1, and particles in the stirring cavity 11 are pushed to sink by the spiral scraping plate 2 and then enter the drain cavity 41 through the drain hole 12.

Specifically, the drain cylinder 4 includes a drain hopper 42 and a drain pipe 43, the drain hopper 42 is funnel-shaped, the drain pipe 43 is convexly arranged at the lower end opening of the drain hopper 42, a discharge valve 44 is arranged on the drain pipe 43, and in the actual operation process, the discharge valve 44 can be periodically opened to discharge slurry in the drain cavity 41.

A stirring rod 6 is arranged in the blowdown chamber 41, and the stirring rod 6 is used for stirring slurry in the blowdown chamber 41 so as to prevent particles in the blowdown chamber 41 from blocking the discharge valve 44.

Wherein, stirring rod 6 and stirring shaft 51 are coaxial, and both can be disconnected and independently rotated, also can dock fixed co-rotation. When the stirring rod 6 is coaxially fixed with the stirring shaft 51, the bottom wall of the filter cartridge 1 is provided with a through hole, and the stirring shaft 51 passes through the through hole to be coaxially fixed with the stirring rod 6, wherein the fixing mode comprises, but is not limited to, welding connection, threaded connection, interference tight fit and the like. Preferably, the stirring rod 6 and the stirring shaft 51 are detachably connected, for example, the stirring rod 6 comprises a rotating shaft 61 and a stirring rod 62 protruding from the side wall of the rotating shaft 61, a threaded hole is formed in the upper end of the rotating shaft 61, an external thread matched with the threaded hole is formed in the lower end of the stirring shaft 51, and the rotating shaft 61 is sleeved on the stirring shaft 51 and is in threaded connection with the stirring shaft 51.

Referring to fig. 4, regarding the connection between the screw 2 and the stirring shaft 51, a first connecting rod 21 and a second connecting rod 22 are provided between the screw 2 and the stirring shaft 51, one end of the first connecting rod 21 is connected to the start point of the screw 2, the other end of the first connecting rod 21 is connected to the stirring shaft 51, one end of the second connecting rod 22 is connected to the end point of the screw 2, and the other end of the second connecting rod 22 is connected to the stirring shaft 51.

In this embodiment, the spiral scraper 2 is connected with the stirring shaft 51 through the first connecting rod 21 and the second connecting rod 22, wherein the first connecting rod 21 is located at the upper end of the spiral scraper 2, one end of the first connecting rod 21 is fixedly connected with the starting point of the spiral scraper 2, the other end of the first connecting rod 21 is fixedly connected with the stirring shaft 51, the second scraper is located at the lower end of the spiral scraper 2, one end of the second connecting rod 22 is fixedly connected with the end point of the spiral scraper 2, and the other end of the second connecting rod 22 is fixedly connected with the stirring shaft 51. The first connecting rod 21 and the second connecting rod 22 can ensure the stability of the connection of the screw flight 2.

Further, in another embodiment of the present utility model, a plurality of magnetic rods 7 are further disposed in the stirring cavity 11, the plurality of magnetic rods 7 are circumferentially arranged with the stirring shaft 51 as a center and fixedly connected with the stirring shaft 51, and the plurality of magnetic rods 7 rotate along with the stirring shaft 51 to adsorb iron substances in the slurry.

In the treatment process of battery slurry, especially lithium battery slurry, the battery slurry can enter a subsequent coating process after iron removal usually, and in the related art, the battery slurry filter 100 is usually separated from the iron remover and occupies a larger space when in use, therefore, in one embodiment of the utility model, a plurality of magnetic rods 7 are arranged in the stirring cavity 11, the plurality of magnetic rods 7 are circumferentially distributed by taking the stirring shaft 51 as a center and are fixedly connected with the stirring shaft 51, the distance between the magnetic rods 7 and the stirring shaft 51 is smaller than the distance between the spiral scraping plate 2 and the stirring shaft 51, and the distances between different magnetic rods 7 and the stirring shaft 51 can be different, so that the coverage area between the magnetic rods 7 and slurry during rotation is increased, and the iron removal efficiency is improved. The magnetic rods 7 rotate along with the stirring shaft 51 to adsorb iron substances in the slurry, so that the filtering process and the iron removing process of the battery slurry are integrated, and the space is greatly saved.

Regarding the connection between the magnetic rod 7 and the stirring shaft 51, a third connecting rod 71 and a fourth connecting rod 72 are provided between the magnetic rod 7 and the stirring shaft 51, and the number of the third connecting rod 71 and the fourth connecting rod 72 is the same as that of the magnetic rod 7. The third connecting rod 71 is arranged on the upper portion of the magnetic rod 7, one end of the third connecting rod 71 is connected with the magnetic rod 7, the other end of the third connecting rod 71 is connected with the stirring shaft 51, the fourth connecting rod 72 is arranged on the lower portion of the magnetic rod 7, one end of the fourth connecting rod 72 is connected with the magnetic rod 7, and the other end of the fourth connecting rod 72 is connected with the stirring shaft 51. Thereby, the stirring shaft 51 rotates, and simultaneously the screw blade 2 and the magnetic rod 7 are driven to rotate synchronously.

Further, the spiral scraper 2 is connected with the stirring shaft 51 through the first connecting rod 21 and the second connecting rod 22, the magnetic rod 7 is connected with the stirring shaft 51 through the third connecting rod 71 and the fourth connecting rod 72, the stirring shaft 51 is sleeved with the first collar 511 and the second collar 512, one ends of the first connecting rod 21 and the third connecting rod 71, which face the stirring shaft 51, are connected with the outer side wall of the first collar 511, and one ends of the second connecting rod 22 and the fourth connecting rod 72, which face the stirring shaft 51, are connected with the outer side wall of the second collar 512. Thereby, the screw scraper 2 and the magnetic rod 7, the first connecting rod 21 and the second connecting rod 22 are connected into a whole through the first collar 511 and the second collar 512, the first collar 511 and the second collar 512 are detachably connected with the stirring shaft 51, such as threaded connection or interference fit, and the like, so that the screw scraper 2 and the magnetic rod 7 can be integrally assembled and disassembled by screwing the first collar 511 and the second collar 512.

The magnetic rod 7 includes a magnetic rod body 73 and a magnetic rod handle 74, the magnetic rod body 73 is provided in the stirring chamber 11 and fixedly connected with the stirring shaft 51, and the magnetic rod handle 74 is provided at the upper end of the magnetic rod body 73 in a protruding manner and extends into the upper chamber of the outer cylinder 3. The bar magnet handle 74 does not participate in stirring of the battery slurry, and after the iron removal is completed, the bar magnet 7 is taken out by holding the bar magnet handle 74.

The foregoing description is only of the preferred embodiments of the present utility model and is not intended to limit the scope of the utility model, and all equivalent structural changes made by the description of the present utility model and the accompanying drawings or direct/indirect application in other related technical fields are included in the scope of the utility model.

Claims

1. A battery slurry filter, comprising:

the filter cartridge is characterized in that a drain hole is formed in the side wall of the filter cartridge, a stirring cavity is formed in the filter cartridge, a stirring shaft is arranged in the stirring cavity in a penetrating mode, and the stirring shaft is located on the central axis of the stirring cavity;

The spiral scraper blade is arranged in the stirring cavity, the spiral scraper blade is screwed by taking the stirring shaft as the center and is fixedly connected with the stirring shaft, the outer side wall of the spiral scraper blade is in contact with the inner side wall of the filter cylinder, and the spiral scraper blade rotates together with the stirring shaft, so that the particulate matters on the inner wall of the filter cylinder are scraped off and pushed downwards.

2. The battery slurry filter of claim 1 further comprising a blowdown cartridge mounted below the filter cartridge, a blowdown chamber formed in the blowdown cartridge, a drain hole communicating the stir chamber and the blowdown chamber being provided in a bottom wall of the filter cartridge, and particulate matter in the stir chamber being pushed by the helical flitch through the drain hole to enter the blowdown chamber.

3. The battery slurry filter according to claim 2, wherein the drain cylinder comprises a drain hopper and a drain pipe, the drain hopper is funnel-shaped, the drain pipe is convexly arranged at the lower end opening of the drain hopper, a discharge valve is arranged on the drain pipe, and particulate matters in the drain cavity are discharged outwards through the discharge valve.

4. A battery slurry filter according to claim 3 wherein a stirring rod is provided in the blowdown chamber for stirring slurry in the blowdown chamber to prevent particulate matter in the blowdown chamber from clogging the discharge valve.

5. The battery slurry filter of claim 4, wherein the bottom wall of the filter cartridge is provided with a through hole, and the stirring shaft passes through the through hole to be coaxially fixed with the stirring rod.

6. The battery slurry filter of claim 5, wherein the stirring rod is detachably connected to the stirring shaft.

7. The battery paste filter according to any one of claims 1 to 6, wherein a first connecting rod and a second connecting rod are provided between the screw blade and the stirring shaft, one end of the first connecting rod is connected to a start point of the screw blade, the other end of the first connecting rod is connected to the stirring shaft, one end of the second connecting rod is connected to an end point of the screw blade, and the other end of the second connecting rod is connected to the stirring shaft.

8. The battery slurry filter according to claim 1, wherein a plurality of magnetic rods are further arranged in the stirring cavity, the plurality of magnetic rods are circumferentially arranged with the stirring shaft as a center and fixedly connected with the stirring shaft, and the plurality of magnetic rods rotate along with the stirring shaft so as to adsorb iron substances in the slurry.

9. The battery paste filter according to claim 8, wherein a third connecting rod and a fourth connecting rod are provided between the magnetic rod and the stirring shaft, and the number of the third connecting rod and the number of the fourth connecting rod are the same as the number of the magnetic rods;

The third connecting rod is arranged on the upper portion of the magnetic rod, one end of the third connecting rod is connected with the magnetic rod, the other end of the third connecting rod is connected with the stirring shaft, the fourth connecting rod is arranged on the lower portion of the magnetic rod, one end of the fourth connecting rod is connected with the magnetic rod, and the other end of the fourth connecting rod is connected with the stirring shaft.

10. The battery paste filter according to claim 9, wherein a first connecting rod and a second connecting rod are provided between the screw blade and the stirring shaft, one end of the first connecting rod is connected to a start point of the screw blade, the other end of the first connecting rod is connected to the stirring shaft, one end of the second connecting rod is connected to an end point of the screw blade, and the other end of the second connecting rod is connected to the stirring shaft;

The stirring shaft is sleeved with a first sleeve ring and a second sleeve ring, one end, facing the stirring shaft, of the first connecting rod and the third connecting rod is connected with the outer side wall of the first sleeve ring, and one end, facing the stirring shaft, of the second connecting rod and the fourth connecting rod is connected with the outer side wall of the second sleeve ring.