CN216297476U - Be applied to washing of anodal abandonment thick liquids of battery, breaker - Google Patents

Abstract

The utility model discloses a cleaning and crushing device applied to waste slurry of a battery anode, which comprises a cleaning pool, wherein a conveyor belt is arranged on the cleaning pool, the conveyor belt sequentially comprises a conveyor belt input end, a cleaning section, a discharging section and a conveyor belt output end, and a bubble generating device is arranged in the cleaning pool; the slurry tank is internally provided with an overflow plate, the overflow plate divides the slurry tank into more than one overflow area, the upper side of the overflow plate is used as an overflow port, the slurry tank is sequentially provided with a slurry tank input end, an overflow area and a slurry tank output end, and the overflow area is also internally provided with a bubble generating device; through adopting the design of wasing pond, cooperation bubble generating device in the thick liquids pond to handle the anodal abandonment thick liquids of battery, not only realize reducing wasting of resources and environmental pollution to abandonment thick liquids recycle's effect, guarantee safety, can separate piece, foreign matter well moreover, guarantee that the thick liquids of retrieving have better value of utilization.

Description

Be applied to washing of anodal abandonment thick liquids of battery, breaker

Technical Field

The utility model relates to the technical field of battery production, in particular to a cleaning and crushing device applied to waste slurry of a battery anode.

Background

In the preparation process of the battery, taking a nickel-cobalt-manganese ternary lithium ion battery as an example, the positive plate is prepared by coating slurry prepared by taking nickel-cobalt lithium manganate as a positive active material on a current collector. Therefore, during the manufacturing process of the positive electrode sheet, waste slurry is inevitably generated, and the waste slurry comprises NMP, water, carbon powder, positive electrode material, PVDF and the like, and also comprises fragments and foreign matters such as slurry packaging plastic bags, rags, gloves and the like. The positive electrode material in the waste slurry contains Ni, Co and Mn metals, so the waste slurry has great recycling value.

In practice, the waste slurry is easy to agglomerate in the long-term storage process, and is not beneficial to the recovery of the slurry. And if the waste slurry is not properly treated, not only can resource waste be caused, but also environmental pollution can be caused, and huge potential safety hazards exist. Therefore, it is necessary to treat the waste slurry in time, separate the slurry from foreign matters, and crush the agglomerated slurry.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects of the prior art, the utility model provides a cleaning and crushing device applied to waste slurry of a battery anode.

The technical scheme adopted by the utility model for solving the technical problems is as follows: the device comprises a cleaning pool, wherein a conveyor belt is arranged on the cleaning pool, the conveyor belt sequentially comprises a conveyor belt input end, a cleaning section, a discharge section and a conveyor belt output end, and a bubble generating device is arranged in the cleaning pool; the slurry tank is used for processing the slurry processed by the cleaning tank, an overflow plate is arranged in the slurry tank, the slurry tank is divided into more than one overflow area by the overflow plate, the upper side of the overflow plate is used as an overflow port, the slurry tank is sequentially provided with a slurry tank input end, an overflow area and a slurry tank output end, and a bubble generating device is also arranged in the overflow area.

According to the cleaning and crushing device applied to the waste slurry of the battery anode, provided by the utility model, through the design that the cleaning pool and the bubble generating device are matched in the slurry pool to treat the waste slurry of the battery anode, the waste slurry of the battery anode is firstly cleaned and crushed on the conveying belt of the cleaning pool, and then the slurry is sequentially shunted, cleaned and crushed in the slurry pool through the overflow plate, so that the effect of recycling the waste slurry is realized, the resource waste and the environmental pollution are reduced, the safety is ensured, the fragments and foreign matters can be well separated, and the recovered slurry has better utilization value.

As some preferred embodiments of the utility model, the discharge section is inclined upwardly.

As some preferred embodiments of the utility model, a spraying device is arranged on the upper side of the discharging section.

As some preferred embodiments of the present invention, the spraying device is connected to the solvent bucket.

As some preferred embodiments of the utility model, the conveyor belt output end extends out of the cleaning tank.

As some preferred embodiments of the utility model, the lower side of the output end of the conveyor belt is provided with a blower and a waste residue bucket.

As some preferable embodiments of the utility model, the conveyor belt is provided with a discharge hole.

As some preferred embodiments of the utility model, the bubble generating device comprises a blower and a bubble tube, and the bubble tube is provided with bubble holes.

As some preferred embodiments of the present invention, the conveyor belt is provided with a baffle.

As some preferred embodiments of the present invention, a backflow pipeline is disposed on an upper side of the output end of the slurry tank, and the backflow pipeline is communicated with the solvent barrel.

The utility model has the beneficial effects that:

1. under the action of the bubble generating device in the cleaning tank, foreign matters are separated from the recovered slurry, the recovered slurry is crushed and dispersed, and large-particle slurry with the size smaller than the discharge hole of the conveying belt falls into the slurry tank for further crushing after being crushed;

2. the slurry pool is divided into a plurality of overflow areas, each overflow area is internally provided with a bubble generating device, each overflow area is separated by an overflow plate, an overflow port for slurry to overflow is reserved between the overflow plate and the top of the slurry pool, the height of the overflow plate arranged from the feed end to the discharge end of the slurry pool is gradually reduced, the opening of the overflow port is gradually increased from the feed end to the discharge end of the slurry pool, and the slurry is crushed step by step through step overflow to finally obtain the thin slurry with the particle size and the solid content meeting the requirements of the next procedure;

3. after the slurry tank is gradually crushed and overflows, the dilute slurry with lower concentration at the upper part of an overflow area at the discharge end of the slurry tank is conveyed to a spraying device through a conveying pump, so that the cyclic utilization of the dilute slurry is realized, and the dilute slurry with higher concentration at the lower part of the overflow area at the discharge end of the slurry tank is conveyed to a next process for use through a pump;

4. go out the material section below and set up the hair-dryer, the hair-dryer carries wind-force to between discharge gate and the waste residue bucket through the induced duct, the abluent foreign matter that the discharge gate department fell down and the foreign matter that is not by the sanitization will be followed to the wind-force of production, retrieve the thick liquids separation, the processing of doing over again is directly dropped to the waste residue bucket in the abluent foreign matter that weight is heavier not by the sanitization and retrieve the thick liquids, the abluent foreign matter that weight is lighter then falls to the foreign matter bucket on waste residue bucket next door in the wind-force effect, thereby will abluent plastics effectively, foreign matter such as cloth strip separates out.

Drawings

The utility model is further illustrated with reference to the following figures and examples.

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a top view of the conveyor belt of the present invention;

FIG. 3 is a plan view of the bubble generation device of the present invention.

Reference numerals:

a cleaning tank 100; the device comprises a conveyor belt 200, a discharge hole 201, a conveyor belt input end 210, a cleaning section 220, a discharge section 230, a conveyor belt output end 240 and a baffle 250; the system comprises a slurry pool 300, a slurry pool input end 301, an overflow area 302, a slurry pool output end 303, an overflow plate 310, an overflow port 311 and a discharge pipe 320; the bubble generating device 400, the bubble tube 410 and the bubble hole 411; a spray device 500; a solvent barrel 600, a reflux pipeline 610, a delivery pump 611, a pressure gauge 612 and a flow meter 613; a waste residue barrel 700 and a blower 710.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. Rather, the utility model can be practiced without these specific details, i.e., those skilled in the art can more effectively introduce the essential nature of their work to others skilled in the art using the description and presentation herein.

Furthermore, it should be noted that the terms "front side", "rear side", "left side", "right side", "upper side", "lower side", and the like used in the following description refer to directions in the drawings, and the terms "inner" and "outer" refer to directions toward and away from the geometric center of a specific part, respectively, and those skilled in the art should not understand that the technology beyond the scope of the present application is simply and innovatively adjustable in the directions.

If the description of "first", "second", etc. is used for the purpose of distinguishing technical features, it is not intended to indicate or imply relative importance or to implicitly indicate the number of indicated technical features or to implicitly indicate the precedence of the indicated technical features.

The following related art terminology definitions are referred to:

waste slurry: contains foreign matters such as plastics and cloth strips and recovered slurry;

and (3) recovering the slurry: slurry containing Ni, Co and Mn;

large particle size: after being crushed by the bubble generating device 400 in the cleaning tank, the size of the slurry is smaller than the diameter of the discharge hole on the conveyor belt;

fine slurry: the slurry in the process of being crushed step by step in the slurry tank by the bubble generating device 400;

dilute slurry material: the size of the particles and the solid content of the slurry meet the requirements, namely the NMP solution with a certain solid content, wherein the solid content is 20-40%.

It should be understood that the detailed description and specific examples, while indicating the scope of the utility model, are intended for purposes of illustration only and are not intended to limit the scope of the utility model. Well-known manufacturing methods, control procedures, component dimensions, material compositions, pipe arrangements, etc., have not been described in detail since they are readily understood by those of ordinary skill in the art, in order to avoid obscuring the present invention.

Fig. 1 is a schematic structural diagram of an embodiment of the present invention, and referring to fig. 1, an embodiment of the present invention provides a cleaning and crushing device for waste slurry of a battery positive electrode, which includes a cleaning tank 100, wherein a solvent is contained in the cleaning tank 100. The cleaning tank 100 is provided with a conveyor belt 200, and the conveyor belt 200 is used for conveying waste slurry. The conveyor 200 has, in sequence, a conveyor input 210, a cleaning section 220, a discharge section 230, and a conveyor output 240, with the waste slurry being fed to the conveyor input 210 and immersed in the solvent in the cleaning tank 100 at the cleaning section 220.

Further, a bubble generating device 400 is arranged in the cleaning tank 100, the bubble generating device 400 is used for generating bubbles, the bubbles generate air force after being broken, the recovered slurry is separated from the foreign matters under the action of the air force, and the separated recovered slurry (especially the waste slurry block) is crushed.

Further, the slurry tank 300 for processing the slurry processed by the cleaning tank 100, that is, the solvent mixed with a part of the slurry in the cleaning tank 100, is sent to the slurry tank 300. An overflow plate 310 is provided within the slurry tank 300, the overflow plate 310 dividing the slurry tank 300 into more than one overflow area 302. The upper side of the overflow plate 310 is used as an overflow port 311. The slurry tank 300 has, in order, a slurry tank input 301, an overflow area 302, and a slurry tank output 303. When the slurry level accumulated in the last overflow area 302 (the overflow area 302 near the rear side) is higher than the level of the overflow plate 310, the crushed fine slurry will overflow forward to the next overflow area 302 (the overflow area 302 near the front side) through the overflow port 311 for separation treatment.

Still further, the overflow area 302 is also provided with a bubble generating device 400, and similarly, the bubble generating device 400 generates air force to separate the recovered slurry from the foreign matters under the action of the air force and crush the separated recovered slurry, so that the step-by-step overflow area 302 can overflow and gradually crush the fine slurry into thin slurry with particle size and solid content meeting the requirements.

In actual work, foreign matters such as plastics and cloth strips are separated from the recovered slurry in the cleaning pool 100, and the recovered slurry is primarily crushed; large-particle slurry with the size smaller than the diameter of the discharge hole and a solvent in the cleaning tank 100 enter a slurry tank 300, and fine slurry is gradually crushed into thin slurry with the particle size and the solid content meeting the requirements of the next procedure through gradual crushing overflow; and the cleaned foreign matter and recovered slurry are collected and processed at the conveyor belt output end 240.

The above-disclosed apparatus for cleaning and crushing waste slurry of positive electrode of battery is only a preferred embodiment of the present invention, and is only used for illustrating the technical solution of the present invention, not limiting the same. It will be understood by those skilled in the art that the foregoing technical solutions may be modified or supplemented by the prior art, or some of the technical features may be replaced by equivalents; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions.

Reference will now be made in detail to some embodiments, wherein "an embodiment" is referred to herein as a particular feature, structure, or characteristic that may be included in at least one implementation of the present application. The appearances of the phrase "in an embodiment" in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. Furthermore, the details representative of one or more embodiments are not necessarily indicative of any particular order, nor are they intended to be limiting.

In some embodiments, the solvent within the cleaning cell 100 is an NMP solvent.

In some embodiments, the washing tank 100 is located at the upper side of the slurry tank 300, so that the slurry washed in the washing tank 100 can flow into the slurry tank 300.

In some embodiments, the cleaning tank 100 is provided with a water outlet, so that the slurry can flow into the slurry tank 300 through the water outlet.

In some embodiments, the cleaning tank 100 is connected to the slurry tank 300 through a delivery pipe, so that the slurry in the cleaning tank 100 can flow into the slurry tank 300 through the delivery pipe. The conveying pipe is provided with a valve which is used for opening or closing the conveying pipe.

In some embodiments, the conveyor belt 200 extends in a front-to-back direction, wherein the back side of the conveyor belt 200 serves as the conveyor belt input 210 and the front side of the conveyor belt 200 serves as the conveyor belt output 240.

In some embodiments, the discharge section 230 is tilted upward to allow the slurry to leave the solvent for further processing. The above-described angled upward design also avoids excessive solvent leakage from the discharge section 230.

In some embodiments, a spraying device 500 is disposed on the upper side of the discharging section 230. The spray device 500 is used for high-pressure spray washing of the foreign matter and the recovered slurry washed by the bubble generation device 400 in the washing tank 100.

In some embodiments, spray apparatus 500 is coupled to solvent tank 600, and solvent tank 600 is used to hold solvent.

In some embodiments, the conveyor output 240 extends out of the cleaning tank 100 for subsequent processing.

In some embodiments, a blower 710 and a scrap bin 700 are provided on the underside of the conveyor output 240. Foreign matters and particles falling from the belt outlet 240 and the recovered slurry are blown by the blower 710, so that the fine foreign matters and particles are blown off. Larger foreign bodies, particles, which are more difficult to handle, fall into the waste bin 700 to be collected for further processing.

In this embodiment, optionally, a foreign matter barrel is further disposed beside the waste residue barrel 700, so that when the blower 710 blows air, light and clean foreign matters fall into the foreign matter barrel under the action of wind power to perform solid waste treatment; the heavy recovered slurry and the foreign matters which are not cleaned fall into the waste residue bucket 700 under the action of gravity for rework treatment.

In some embodiments, referring to fig. 2, the conveyor belt 200 is provided with an outlet 201, such that the partially crushed large particle slurry (corresponding to the size of the outlet 201) will fall through the outlet 201 into the cleaning tank 100 below the conveyor belt 200.

In some embodiments, referring to fig. 3, the bubble generating device 400 comprises a blower, a bubble vial 410, and a bubble hole 411 is disposed on the bubble vial 410. The blower blows air to the bubble vial 410, and bubbles are formed and output from the bubble holes 411.

In this embodiment, optionally, the bubble tube 410 is located at the lower side in the cleaning tank 100 and the slurry tank 300, and the installation position of the blower is not limited on the premise of ensuring the blowing effect.

In this embodiment, optionally, the bubble tube 410 includes a closed end with one end closed, and the other end of the bubble tube 410 is used for introducing the air inlet end of the gas.

In this embodiment, the blower may be replaced by other devices that can introduce gas or produce gas.

In some embodiments, a baffle 250 is disposed on the conveyor belt 200. The baffle 250 can prevent the conveyor belt 200 from sliding down to the cleaning tank 100 again due to the action of gravity in the process of conveying the cleaned foreign matters and the recovered slurry out of the cleaning tank, so that the conveyor belt is convenient to convey, and the function of blocking is achieved.

In this embodiment, alternatively, the barrier 250 may rotate in one direction, the barrier 250 may rotate forward but not rotate backward, and the rotation axis of the barrier 250 extends in the left and right direction.

In some embodiments, the slurry tank 300 extends in a front-to-rear direction, and the overflow area 302 is also arranged in the front-to-rear direction, wherein the rear side of the slurry tank 300 serves as the slurry tank input 301 and the front side of the slurry tank 300 serves as the slurry tank output 303.

In some embodiments, the overflow plates 310 are preferably two, and the first overflow plate and the second overflow plate are arranged from the back to the front. The overflow plate 310 divides the slurry tank into three overflow areas 302, which are a first overflow area, a second overflow area, and a third overflow area in sequence from the back to the front.

In some embodiments, the height of the overflow plate 310 disposed from the slurry tank input 301 to the slurry tank output 303 of the slurry tank 300 is gradually decreased in order.

In some embodiments, the slurry tank input 301 of the slurry tank 300 is equipped with a level meter for metering the level of slurry at the slurry tank input 301.

In some embodiments, slurry tank 300 has a discharge pipe 320 disposed above slurry tank output end 303.

In some embodiments, a return pipe 610 is disposed on the upper side of the slurry tank output end 303 of the slurry tank 300, and the return pipe 610 is communicated with the solvent bucket 600.

In this embodiment, a delivery pump 611 for delivering the dilute slurry is optionally installed on the return pipe 610.

In this embodiment, optionally, a pressure gauge 612 for detecting the delivery pressure is installed on the return pipe 610.

In this embodiment, a flow meter 613 for detecting flow rate is optionally installed on the return pipe 610.

In some embodiments, taking the nickel cobalt lithium manganate as the positive electrode active material to be coated with slurry as an example, the working steps of the device are as follows:

s1: placing waste slurry containing foreign matters such as plastics and cloth strips and recovered slurry on a conveyor belt 200 in a cleaning pool 100, and injecting an NMP solvent into the cleaning pool 100 until the waste slurry is completely soaked in the NMP solvent;

s2: opening the bubble generating device 400, wherein the bubble generating device 400 generates bubbles, the bubbles generate air force after being broken, the recovered slurry is separated from foreign matters under the action of the air force, and the separated recovered slurry is crushed;

s3: the crushed large-particle slurry falls into a cleaning pool 100 below the conveyor belt through a discharge hole 201 on the conveyor belt 200;

s4: the recovered slurry and foreign matters are conveyed out of the cleaning tank 100 through a conveyor belt;

s5: when the slurry is conveyed to the discharging section of the cleaning pool 100, the NMP solvent is used for carrying out high-pressure spray washing on the recovered slurry and the foreign matters, so that the recovered slurry is further crushed, and the recovered slurry adhered to the surface of the foreign matters is further cleaned;

s6: the recovered slurry and foreign matters conveyed out of the cleaning tank 100 fall into the waste residue barrel 700 below under the action of gravity under the action of the wind power of the blower 710, and the cleaned foreign matters with lighter weight fall into the foreign matter barrel beside the waste residue barrel 700 under the action of the wind power, so that the cleaned foreign matters are separated from the foreign matters which are not cleaned and the recovered slurry;

s7: the large-particle slurry is further crushed in the slurry pool 300 under the action of the bubble generating device 400, and when the slurry accumulated in the overflow area 302 is higher than the overflow plate 310, the crushed fine slurry overflows to the next overflow area 302 through the overflow port 311 to be crushed, and is gradually crushed into thin slurry with the particle size and the solid content meeting the requirements;

s8: after the slurry tank 300 is broken step by step, the dilute slurry at the upper part of the discharge end of the slurry tank 300 is conveyed to a spraying device to realize cyclic utilization, and the dilute slurry with higher concentration at the lower part of the discharge end of the slurry tank 300 is conveyed to the next procedure by a pump.

S9: and repeating the steps S1-S8, and cleaning and crushing the plastic and the cloth strips adhered with the thick slurry in the waste residue barrel and the thick slurry which is not crushed again until the thick slurry is completely changed into the thin slurry meeting the requirement.

The present invention can be modified and adapted appropriately from the above-described embodiments, according to the principles described above. Therefore, the present invention is not limited to the specific embodiments disclosed and described above, and some modifications and variations of the present invention should fall within the scope of the claims of the present invention.

Claims (10)

1. The utility model provides a be applied to washing, breaker of anodal abandonment thick liquids of battery which characterized in that: the cleaning device comprises a cleaning pool (100), wherein a conveyor belt (200) is arranged on the cleaning pool (100), the conveyor belt (200) is sequentially provided with a conveyor belt input end (210), a cleaning section (220), a discharge section (230) and a conveyor belt output end (240), and a bubble generating device (400) is arranged in the cleaning pool (100);

the slurry pool (300) is used for processing slurry processed by the cleaning pool (100), an overflow plate (310) is arranged in the slurry pool (300), the slurry pool (300) is divided into more than one overflow area (302) by the overflow plate (310), the upper side of the overflow plate (310) is used as an overflow port (311), the slurry pool (300) is sequentially provided with a slurry pool input end (301), an overflow area (302) and a slurry pool output end (303), and a bubble generating device (400) is also arranged in the overflow area (302).

2. The device for cleaning and crushing the waste slurry of the positive electrode of the battery according to claim 1, wherein: the discharge section (230) is inclined upward.

3. The device for cleaning and crushing the waste slurry of the positive electrode of the battery according to claim 1, wherein: and a spraying device (500) is arranged on the upper side of the discharging section (230).

4. The device for cleaning and crushing the waste slurry of the positive electrode of the battery according to claim 3, wherein: the spraying device (500) is connected with the solvent barrel (600).

5. The device for cleaning and crushing the waste slurry of the positive electrode of the battery according to claim 1, wherein: the conveyor belt output end (240) extends out of the cleaning tank (100).

6. The device for cleaning and crushing the waste slurry of the positive electrode of the battery according to claim 5, wherein: and a blower (710) and a waste residue barrel (700) are arranged on the lower side of the output end (240) of the conveyor belt.

7. The device for cleaning and crushing the waste slurry of the positive electrode of the battery according to claim 1, wherein: and a discharge hole (201) is formed in the conveyor belt (200).

8. The device for cleaning and crushing the waste slurry of the positive electrode of the battery according to claim 1, wherein: the bubble generation device (400) comprises an air blower and a bubble tube (410), wherein a bubble hole (411) is formed in the bubble tube (410).

9. The device for cleaning and crushing the waste slurry of the positive electrode of the battery according to claim 1, wherein: the conveying belt (200) is provided with a baffle (250).

10. The device for cleaning and crushing the waste slurry of the positive electrode of the battery according to claim 4, wherein: the upper side of the slurry pool output end (303) of the slurry pool (300) is provided with a backflow pipeline (610), and the backflow pipeline (610) is communicated with the solvent barrel (600).

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