CN116093480A - High-efficient water stripping off device of lithium cell pole piece - Google Patents
High-efficient water stripping off device of lithium cell pole piece Download PDFInfo
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- CN116093480A CN116093480A CN202211695200.4A CN202211695200A CN116093480A CN 116093480 A CN116093480 A CN 116093480A CN 202211695200 A CN202211695200 A CN 202211695200A CN 116093480 A CN116093480 A CN 116093480A
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- Prior art keywords
- stripping
- pole piece
- water tank
- battery pole
- pressure spray
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/54—Reclaiming serviceable parts of waste accumulators
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B3/00—Cleaning by methods involving the use or presence of liquid or steam
- B08B3/02—Cleaning by the force of jets or sprays
- B08B3/022—Cleaning travelling work
Abstract
The invention discloses a high-efficiency water stripping device for a lithium battery pole piece, which comprises a bracket, a stripping water tank, a driving device, a conveying device, a flushing device and a main controller, wherein the bracket is arranged on the bracket; the path for transmitting the battery pole piece is fixed and determined through the interlayer formed between the upper grid conveyer belt and the lower grid conveyer belt, so that the damage to the battery pole piece is avoided; the adhesion between the black powder and the pole piece is reduced, the upper high-pressure spray head and the lower high-pressure spray head wash the black powder on the top surface and the bottom surface of the pole piece respectively, the pole piece is washed by the multi-frequency pulse high-pressure water, the damage to the pole piece of the battery is small, the possible black powder inclusion caused by the damage of the pole piece is avoided, meanwhile, the washing speed is high, the washing is cleaner, less metal fragments are included in the black powder, the stripping efficiency of the black powder on the pole piece is improved, and relatively pure black powder can be obtained; the device has a simple structure and is convenient to assemble and use.
Description
Technical Field
The invention relates to the technical field of lithium ion battery recovery, in particular to a high-efficiency water stripping device for a lithium battery pole piece.
Background
A lithium ion battery is a secondary battery (rechargeable battery) that operates mainly by means of lithium ions moving between a positive electrode and a negative electrode. The lithium ion battery consists of an anode, a cathode, a diaphragm, electrolyte and a shell. In industry, manufacturers mainly use ternary materials of lithium cobaltate, lithium manganate, lithium nickel cobalt manganate, lithium iron phosphate and the like as positive electrode materials of lithium ion batteries, and natural graphite and artificial graphite as negative electrode active materials. Polyvinylidene fluoride (PVDF) is a widely used positive electrode binder, has high viscosity and has good chemical stability and physical properties. The lithium ion battery produced in industry mainly adopts a solution prepared by electrolyte lithium hexafluorophosphate (LiPF 6) and an organic solvent as electrolyte, and uses organic films such as porous polymers of Polyethylene (PE) and polypropylene (PP) as a separator of the battery. Lithium ion batteries are widely regarded as environment-friendly and pollution-free green batteries, but the recycling of the lithium ion batteries is incorrect and pollution is generated. Although the lithium ion battery does not contain toxic heavy metals such as mercury, cadmium, lead and the like, the influence of anode and cathode materials, electrolyte and the like of the battery on the environment and human bodies is still large.
If the common treatment method is adopted to treat lithium ion batteries (landfill, incineration, composting and the like), metals such as cobalt, nickel, lithium, manganese and the like in the batteries, and various organic and inorganic compounds can cause metal pollution, organic matter pollution, dust pollution, acid-base pollution. Lithium ion electrolyte machine convertants such as LiPF6, lithium hexafluoroarsenate (LiAsF 6), lithium triflate (LiCF 3SO 3), hydrofluoric acid (HF), and the like, solvents and hydrolysates such as ethylene glycol dimethyl ether (DME), methanol, formic acid, and the like are toxic substances. Therefore, the waste lithium ion batteries need to be recycled, so that the harm to the natural environment and the health of human bodies is reduced.
The recovery treatment of the waste lithium batteries commonly used in the prior art mostly adopts a coarse crushing mode, the discharging of the crusher is calcined, the failure of the binder in the black powder is realized, the discharging end is connected with a swinging sieve, and the outlet is connected with two dust removal devices; the middle part exit linkage of rocking screen has the mill, and the discharge gate of mill is connected with grinds the glassware, grinds the top powder exit linkage of glassware and has three dust collector, grinds the bottom opening of glassware and is connected with the rotary vibration screen. The swinging screen comprises three discharge holes, the top discharge hole is used for screening out large-particle copper aluminum particles, the bottom discharge hole is used for screening out black powder, and the middle discharge hole is used for screening out materials which cannot be separated through specific gravity.
The black powder obtained in the form of coarse crushing and screening contains a large amount of metal scraps with extremely small particle sizes, and the subsequent black powder utilization process contains a large amount of impurities, so that the utilization value of the black powder is greatly reduced. Due to the expansion characteristic of the metal of the current collecting sheet, the black powder is extremely easy to be entrained in the crushing process, and more than 20% of black powder is lost.
Disclosure of Invention
Therefore, the technical problem to be solved by the invention is to provide the efficient water stripping device for the lithium battery pole piece, which solves the problems that impurities exist in the black powder caused by adopting a poor crushing and screening mode in the prior art, and meanwhile, the current collecting piece is easy to form black powder entrainment in the crushing process due to poor crushing, so that the loss of the black powder is caused.
The high-efficiency water stripping device for the lithium battery pole piece comprises a bracket, a stripping water tank, a driving device, a conveying device, a flushing device and a main controller;
the support is horizontally arranged, and one end of the top surface is provided with a stripping water tank; the stripping water tank comprises a stripping water tank and an upper tank body; the top of the stripping water tank is provided with an opening, an upper box body is arranged at the opening, one end of the upper box body is provided with a feed inlet, and the other end of the upper box body and the top end of the stripping water tank form a discharge outlet;
the conveying device comprises a roll shaft, an upper grid conveying belt and a lower grid conveying belt; the roll shafts are transversely arranged, and two ends of the roll shafts are rotationally connected with the stripping water tank or the upper box body; the upper grid conveyer belt is arranged on the upper box body through a roll shaft, and belt roller transmission is formed between the upper grid conveyer belt and the roll shaft; the lower grid conveyer belt is arranged on the stripping water tank through a roll shaft, and belt roller transmission is formed between the lower grid conveyer belt and the roll shaft; an interlayer is formed between the bottom surface of the upper grid conveyor belt and the lower grid conveyor belt and is used for fixing and conveying the battery pole piece after pretreatment; the sizes of grids on the upper grid conveyor belt and the lower grid conveyor belt can prevent the battery pole pieces from falling from the grids;
the driving device is arranged on one side of the stripping water tank and is used for driving the roll shafts to rotate so as to drive the upper grid conveyor belt and the lower grid conveyor belt to move;
the flushing device comprises a high-pressure pump, a pulse generator, an upper connecting pipe, an upper high-pressure spray head, a lower connecting pipe, a lower high-pressure spray head and an automatic cleaning filter; the stripping water tank is characterized in that one side surface of the stripping water tank is connected with a pipeline, an upper high-pressure pipeline and a lower high-pressure pipeline are arranged at the other end of the pipeline, the upper high-pressure pipeline penetrates through one side wall of the stripping water tank and is communicated with an upper connecting pipe which is longitudinally arranged, one side of the upper connecting pipe is rotationally connected with a plurality of upper high-pressure spray heads, the lower high-pressure pipeline penetrates through one side surface of the stripping water tank and is communicated with a lower connecting pipe which is longitudinally arranged, and one side of the lower connecting pipe is rotationally connected with a lower high-pressure spray head; the upper high-pressure spray head and the lower high-pressure spray head are used for flushing black powder on the upper side of the battery pole piece and black powder on the lower side of the battery pole piece; the pipeline is provided with a high-pressure pump and a pulse generator; the bottom end of the high-pressure pump is fixedly connected with the support; the high-pressure pump is used for controlling the water pressure of water spraying of the upper high-pressure spray head and the lower high-pressure spray head; the pulse generator is used for controlling the pulse of spraying water to the upper high-pressure spray head and the lower high-pressure spray head; the automatic cleaning filter is communicated with the pipeline, the bottom of the automatic cleaning filter is fixedly connected with the bracket, and the bottom of the automatic cleaning filter is provided with a black powder outlet;
the main controller is arranged on one side of the stripping water tank and is electrically connected with the driving device, the high-pressure pump, the pulse generator and the automatic cleaning filter;
the lower grid conveyor belt drives the battery pole piece input by the feed inlet, an interlayer for fixing the battery pole piece is formed between the lower grid conveyor belt and the upper grid conveyor belt, and the upper high-pressure spray head and the lower high-pressure spray head wash black powder on the surface of the battery pole piece; the washed pole piece is discharged from a discharge hole, and the black powder enters a stripping water tank along with water spraying, is transported to an automatic cleaning filter through a pipeline and is discharged from a black powder outlet.
Further, the feed inlet is the rectangle, and feed inlet department is provided with the door plant, and door plant one side is connected with feed inlet one side rotation, and the door plant other side is provided with the slide switch that is used for controlling whether the feed inlet is closed.
Further, the driving device comprises a driving motor, a gear and a gear box;
a step is arranged on one side surface of the top of the stripping water tank; the top surface of the step is fixedly provided with a gear box, the driving motor is fixed on the gear box, and the output shaft penetrates through one side wall of the gear box and is fixedly connected with a gear; the gear box is rotationally connected with another gear, and the two gears are in gear transmission; the two gears are fixedly connected with the end parts of the roller shafts arranged at one end of the upper grid conveyor belt or the lower grid conveyor belt, which is far away from the feed inlet, respectively;
the driving motor is electrically connected with the main controller and is used for driving the gear to rotate.
Further, a drain valve is arranged at the bottom of the stripping water tank.
Further, the number of the upper high-pressure spray heads is consistent with that of the lower high-pressure spray heads, and the upper high-pressure spray heads and the lower high-pressure spray heads are opposite to each other, so that unbalance of the positions of the battery pole pieces in the flushing process is avoided.
Further, the main controller is a PLC control cabinet, the main controller is installed on the step, and an integrated touch screen is arranged on one side surface of the main controller, which is far away from the upper box body.
Further, the device also comprises a porous plate isolation cover and an isolation cover; the isolation cover is fixedly connected with the upper box body; the top of the isolation cover is rotationally connected with a roller shaft which is transversely arranged, and the roller shaft is connected with the upper grid conveyor belt; an opening is formed in the bottom of the isolation cover and can cover the top surface of the interlayer; the porous plate isolation cover is fixedly connected with the stripping water tank; the bottom of the porous plate isolation cover is rotationally connected with a roller shaft which is transversely arranged, and the roller shaft is connected with a lower grid conveyor belt; an opening is formed in the top of the porous plate isolation cover and can cover the bottom surface of the interlayer;
one end of the upper high-pressure pipeline penetrates through the isolation cover and is connected with an upper connecting pipe arranged in the isolation cover; one end of the lower high-pressure pipeline penetrates through the porous plate isolation cover and is connected with a lower connecting pipe arranged inside the porous plate isolation cover.
Further, the device also comprises a guide roller, wherein the perforated plate isolation cover and the isolation cover are respectively and rotatably connected with the guide roller which is transversely arranged; the guide roller in the isolation cover is connected with the top surface of the interlayer, and the guide roller in the porous plate isolation cover is connected with the bottom surface of the interlayer; the guide roller is used for enabling the interlayer to be more stable in the process of fixing and conveying the battery pole pieces.
Further, the device also comprises a pushing handle and universal wheels; the pushing handle is vertically arranged and fixedly connected with one end of the bracket, which is far away from the stripping water tank; universal wheels are arranged at four corners of the bottom surface of the support.
The beneficial effects are that: the invention fixes and determines the path for transmitting the battery pole piece through the interlayer formed between the upper grid conveyer belt and the lower grid conveyer belt, thereby avoiding damage to the battery pole piece; the adhesion between the black powder and the pole piece is reduced, the upper high-pressure spray head and the lower high-pressure spray head wash the black powder on the top surface and the bottom surface of the pole piece respectively, the pole piece is washed by the multi-frequency pulse high-pressure water, the damage to the pole piece of the battery is small, the possible black powder inclusion caused by the damage of the pole piece is avoided, meanwhile, the washing speed is high, the washing is cleaner, less metal fragments are included in the black powder, the stripping efficiency of the black powder on the pole piece is improved, and relatively pure black powder can be obtained; the device has a simple structure and is convenient to assemble and use.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are needed in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the present invention, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of the overall structure of an embodiment of the present invention;
FIG. 2 is a front view of an embodiment of the present invention;
FIG. 3 is a top view of an embodiment of the present invention;
FIG. 4 is a left side view of an embodiment of the present invention;
fig. 5 is an installation schematic diagram of a conveying device according to an embodiment of the invention.
Reference numerals illustrate:
1. a bracket; 11. a pushing handle; 2. stripping the water tank; 21. peeling off the water tank; 211. a liquid discharge valve; 22. an upper case; 221. a feed inlet; 2211. a door panel; 2212. a slide switch; 222. a discharge port; 3. a high pressure pump; 4. a pulse generator; 5. automatically cleaning the filter; 51. a black powder outlet; 611. a high-pressure pipeline; 612. a lower high pressure pipeline; 621. an upper connecting pipe; 622. a lower connecting pipe; 631. a high-pressure spray head is arranged; 632. a lower high-pressure spray head; 64. a joint; 71. a driving motor; 72. a gear box; 8. a main controller; 81. an integrated touch screen; 91. a roll shaft; 92. a guide roller; 101. a grid conveyer belt is arranged; 102. a lower grid conveyor belt; 111. an isolation cover; 112. a perforated plate cage; 12. and a universal wheel.
Detailed Description
The following description of the embodiments of the present invention will be made apparent and fully in view of the accompanying drawings, in which some, but not all embodiments of the invention are shown. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
In addition, the technical features of the different embodiments of the present invention described below may be combined with each other as long as they do not collide with each other.
The efficient water stripping device for the lithium battery pole piece as shown in the figures 1-5 comprises: the device comprises a universal wheel 12, a bracket 1, a push handle 11, a stripping water tank 2, a driving device, a conveying device, a flushing device and a main controller 8.
The support 1 is horizontal and transversely arranged, universal wheels 12 are arranged at four corners of the bottom, a stripping water tank 2 is fixedly connected to one end of the top surface, the other end of the top surface is fixedly connected with a stripping water tank 2, the other end of the top surface is fixedly connected with a pushing handle 11, the pushing handle 11 is fixedly connected with the support 1, the pushing handle 11 is vertically arranged, and the top of the top is used for holding and pushing or pulling the support 1 to move.
In this embodiment, the universal wheel 12 and the pushing handle 11 are arranged, so that the device can be moved, and the device can be conveniently pushed to a using place for use or a warehouse for storage.
The peeling water tank 2 includes a peeling water tank 21 and an upper tank body 22; the bottom surface of the stripping water tank 21 is fixedly connected with the bracket 1, two liquid discharge valves 211 are symmetrically arranged on the same side surface of the bottom, a step is arranged on the left side surface of the stripping water tank 21, and an upward opening is arranged on the top; the upper box body 22 is in a cuboid shape, is longitudinally arranged at the top of the stripping water tank 21, and is provided with another opening with a size and shape matched with the opening at the top of the stripping water tank 21 at the bottom; a feed inlet 221 is formed in one end of the upper box body 22, the feed inlet 221 is rectangular, a door plate 2211 is arranged at the feed inlet 221, one side edge of the door plate 2211 is rotationally connected with one side edge of the feed inlet 221, and a sliding switch 2212 is arranged at the other side edge of the door plate 2211 and used for controlling whether the feed inlet 221 is closed or not; a discharge hole 222 which is arranged obliquely downwards is formed between the edge part of the bottom of the other end of the upper box body 22 and the top of the stripping water tank 21.
In this embodiment, the structure setting of peeling off water tank 2, simple structure is convenient for assemble and use, and the size of feed inlet 221 is convenient for throw in the battery pole piece, and door plant 2211 and slide switch 2212's setting is convenient for seal and open feed inlet 221, closes the feed inlet after throwing into the battery pole piece and can avoid impurity such as external dust to get into peeling off water tank 2 and lead to the problem that the black powder purity reduces. Preferably, the size of the discharge port 222 is smaller, so that the problem of interference of external impurities on the purity of the black powder can be reduced.
The conveying device comprises a roller 91, an upper grid conveyer belt 101 and a lower grid conveyer belt 102; the roll shaft 91 is transversely arranged in the upper box 22 and the stripping water tank 21, and the end part of the roll shaft is rotatably connected with the upper box 22 or the stripping water tank 21; the number of the roll shafts 91 connected with the upper case 22 and the roll shafts 91 connected with the peeling water tank 21 is 2 respectively, and are horizontally arranged; the upper mesh conveyer belt 101 is installed inside the upper case 22 and forms a belt roller transmission with the roller shaft 91; the lower mesh conveyor belt 102 is installed inside the peeling water tank 21, and forms a belt roller transmission with the roller shaft 91. The conveyer belt at the bottom of the upper grid conveyer belt 101 is arranged at the bottom opening of the upper box 22; the conveyer belt at the top of the lower grid conveyer belt 102 is arranged at the opening at the top of the stripping water tank 2; the conveyer belt at the bottom of the upper grid conveyer belt 101 and the conveyer belt at the top of the lower grid conveyer belt 102 are arranged in parallel and are used for forming an interlayer for fixing and driving the battery pole pieces to move. The horizontal distance from the top of the lower mesh conveyor belt 102 to the feed inlet 221 is smaller than the distance from the bottom of the upper mesh conveyor belt 101 to the feed inlet 221, so that the lower mesh conveyor belt 102 forms a discharging area at the feed inlet 221, and the lower mesh conveyor belt 102 is used for bringing the battery pole piece into an interlayer after the feed inlet 221 is put into the battery pole piece.
In this embodiment, the conveying device is configured to fix and maintain the travelling track of the battery pole piece, and the sizes of the upper grids of the upper grid conveyor belt 101 and the lower grid conveyor belt 102 should be smaller than those of the battery pole piece, so as to prevent the battery pole piece from falling to the stripping water tank 21 after passing through the grids. Preferably, the mesh size is 10×10mm, and the materials of the upper mesh conveyor belt 101 and the lower mesh conveyor belt 102 are nylon materials.
The driving means comprises a driving motor 71, a gear box 72 and gears; the gear box 72 is longitudinally arranged and vertically fixed on the top surface of the step of the stripping water tank 2; the left side surface of the gear box 72 is fixedly connected with a driving motor 71; the output shaft of the driving motor 71 passes through the left side wall of the gear box 72 and is fixedly connected with a gear; the upper part of the gear box 72 is rotatably connected with another gear, and the two gears are in gear transmission; the lower gear is fixedly connected with the end part of the roller shaft 91 arranged at one end, far away from the discharge hole 222, of the lower grid conveyer belt 102, and the upper gear is fixedly connected with the end part of the roller shaft 91 arranged at one end, far away from the discharge hole 222, of the upper grid conveyer belt 101.
In this embodiment, the gear and the driving motor 71 are configured to enable the upper grid conveyor belt 101 and the lower grid conveyor belt 102 to relatively move, so that the positions of the battery pole pieces in the interlayer are in a relatively static state, friction between the battery pole pieces or between the battery pole pieces and the upper grid conveyor belt 101 or the lower grid conveyor belt 102 can not occur, and further, generation of metal powder is prevented from reducing purity of black powder or the battery pole pieces are prevented from being broken to cause generation of black powder inclusion. Preferably, two sides of the upper grid conveyer belt 101 and the lower grid conveyer belt 102 should be provided with outer edges with thickness greater than that of the middle part of the upper grid conveyer belt 101 or the lower grid conveyer belt 102, and the outer edges on the upper grid conveyer belt 101 and the outer edges on the lower grid conveyer belt 102 are mutually abutted in the movement process of the upper grid conveyer belt 101 and the lower grid conveyer belt 102, so as to further avoid the battery pole piece from falling into the stripping water tank 21, and meanwhile, the outer edges on the lower grid conveyer belt 102 can also play a role in collecting the battery pole piece.
The flushing device comprises a high-pressure pump 3, a pulse generator 4, an upper connecting pipe 621, a lower high-pressure spray head 632, a lower connecting pipe 622, a lower high-pressure spray head and an automatic cleaning filter 5; a drain valve 211 at the bottom of the peeling tank 2 is connected to the high-pressure pump 3, the pulse generator 4, and the automatic cleaning filter 5 in this order through the joint 64, and forms a pipe for the flow of liquid; an upper high-pressure pipeline 611 and a lower high-pressure pipeline 612 are connected to one end of the pipeline, which is far away from the drain valve 211; one end of the upper high-pressure pipeline 611 transversely passes through the left side wall of the upper box body 22 and is fixedly connected with an upper connecting pipe 621 longitudinally arranged in the upper triangular region, and a plurality of lower high-pressure spray nozzles 632 are arranged on one side of the upper connecting pipe 621 away from the upper high-pressure pipeline 611; one end of the lower high-pressure pipeline 612 transversely penetrates through the left side wall of the stripping water tank 21 and is connected with a lower connecting pipe 622 longitudinally arranged in a lower triangular area, and a plurality of lower high-pressure spray heads are arranged on one side, away from the lower high-pressure pipeline 612, of the lower connecting pipe 622; the number of the lower high-pressure spray nozzles 632 is consistent with that of the lower high-pressure spray nozzles, the positions of the lower high-pressure spray nozzles are opposite, the lower high-pressure spray nozzles are used for avoiding unbalance of the positions of the battery pole pieces in the process of flushing the battery pole pieces, black powder on the battery pole pieces is not flushed cleanly, flushing efficiency is reduced, and black powder loss is caused. The high-pressure pump 3 is used for controlling the pressure of the water in the control pipeline, so that the lower high-pressure spray head 632 and the water sprayed by the lower high-pressure spray head have the same and continuously existing pressure; the pulse generator 4 is used for controlling the lower high-pressure spray head 632 and the pulse of the water sprayed by the lower high-pressure spray head 632, so that the sprayed water has better impact property and better flushing effect; the self-cleaning filter 5 is used for filtering the black powder, and a black powder outlet 51 is arranged at the bottom of the self-cleaning filter 5.
In this embodiment, the high pressure pump 3 and the pulse generator 4 are used to control the pressure and impact of the water in the pipeline, so that the water in the pipeline can move upwards to the automatic cleaning filter 5 and then to the upper high pressure pipeline 611 and the lower high pressure pipeline 612, and then is sprayed from the upper high pressure sprayer 631 and the lower high pressure sprayer 632. The upper high-pressure spray head 631 is rotatably connected with the upper connecting pipe 621, so that the water spray angle can be conveniently adjusted to achieve better flushing effect; the lower high pressure spray head 632 is rotatably connected with the lower connecting pipe 622, so that the water spray angle can be conveniently adjusted to achieve better flushing effect. The pulse and pressure ranges can also be adjusted by the high-pressure pump 3 and the pulse generator 4, so that a better flushing effect is achieved. Preferably, the pulse pressure is 0-15bar and the frequency range is between 20-30 hz.
Also included are perforated plate shields 112 and shields 111 for enhancing the flushing effect. The isolation cover 111 is arranged in the upper box body 22, and the isolation cover 111 is fixedly connected with the left side wall and the right side wall of the upper box body 22; the top of the isolation cover 111 is rotatably connected with a roller shaft 91 which is transversely arranged, so that an upper triangular area is formed in the middle of the upper grid conveyor belt 101, friction between the isolation cover 111 and the upper grid conveyor belt 101 is avoided, and the isolation cover 111 is convenient to install; the bottom of the isolation cover 111 is provided with an opening which can cover part of the upper grid conveyer belt 101 at the top of the interlayer; the porous plate isolation cover 112 is arranged in the stripping water tank 21, and the porous plate isolation cover 112 is fixedly connected with the left side wall and the right side wall of the stripping water tank 21; the bottom of the porous plate isolation cover 112 is rotationally connected with a roller shaft 91 which is transversely arranged, so that a lower triangular area is formed in the middle of the lower grid conveyor belt 102, friction between the lower grid conveyor belt 102 and the porous plate isolation cover 112 is avoided, and the porous plate isolation cover 112 is convenient to install; an opening is arranged on the upper side of the porous plate isolation cover 112; the shape and the size of the opening on the isolation cover 111 and the perforated plate isolation cover 112 are consistent, the positions of the opening and the opening are opposite, the opening and the opening are fixedly connected, and the middle part of the isolation cover 111 and the middle part of the perforated plate isolation cover 112 form a core area for stripping black powder. The left side of the porous plate isolation cover 112 and the left side of the isolation cover 111 are provided with holes for the lower high pressure pipe 612 or the upper high pressure pipe 611 to pass through, and are connected with a lower connection pipe 622 provided in the porous plate isolation cover 112 or an upper connection pipe 621 provided in the isolation cover 111.
In this embodiment, the inner parts of the porous plate isolation cover 112 and the isolation cover 111 are core areas of the black powder on the battery pole piece which are sprayed by the lower high-pressure spray head 632 and the upper high-pressure spray head 631; the water spraying and stripping of the black powder in the core area can avoid the separation of the pole pieces, the shielding cover 111 can avoid the splashing of water flow, meanwhile, the water reflected from the top can continuously wash the pole pieces of the battery, and the shielding cover 112 of the porous plate can prevent the splashing of water flow and is beneficial to the discharge of flushing water. Preferably, a side of the upper case 22 remote from the driving motor 71 can be opened and closed, facilitating maintenance of the conveyor, the cage 111, and the perforated plate cage 112.
The conveyor also includes guide rollers 92; the guide rollers 92 are transversely arranged and are rotatably connected with the left and right side walls of the porous plate isolation cover 112 or the left and right side walls of the isolation cover 111, and are used for guiding the lower grid conveyor belt 102 and the upper grid conveyor belt 101; meanwhile, the number and the positions of the guide rollers 92 in the isolation cover 111 and the perforated plate isolation cover 112 correspond to each other, so that the conveying belt at the bottom of the upper grid conveying belt 101 and the conveying belt at the top of the lower grid conveying belt 102 are divided into a plurality of parts, the interlayer is correspondingly divided into a plurality of parts, the distance between two ends of the interlayer is reduced by phase change, the interlayer is more stable in the process of fixing and conveying the battery pole pieces, the possibility that the interlayer is not firm in fixation or the interlayer gap in the middle part is too small due to gravity in the process of fixing the interlayer or conveying the battery pole pieces is reduced, and relative displacement occurs between the battery pole pieces so as to generate metal powder by friction is reduced.
In this embodiment, the setting of guide roll 92 can play the effect of direction and protection battery pole piece, is favorable to further improving the purity of black powder, and simultaneously, guide roll 92 can also make the process of fixing and carrying the battery pole piece more stable.
The main controller 8 is a PLC control cabinet, the PLC control cabinet is fixedly arranged on a step of the stripping water tank 21, and the left side face is provided with an integrated touch screen 81. The main controller 8 is electrically connected to the driving motor 71, the high-pressure pump 3, the pulse generator 4, and the automatic cleaning filter 5, and is controlled by the integrated touch screen 81.
In this embodiment, the integrated touch screen 81 has a simple structure, is convenient to operate, and can better control the operation of the device.
Working principle: the device is pushed to a proper place by a pushing handle 11, the angles of the lower high-pressure spray head 632 and the lower high-pressure spray head are adjusted, the feed inlet 221 is opened by a sliding switch 2212, and the pretreated battery pole piece is put into the device from the feed inlet 221; the battery pole piece is put on the top surface of the lower grid conveyer belt 102; the driving device, the high-pressure pump 3, the pulse generator 4 and the automatic cleaning filter 5 are controlled to be started by the main controller 8, and the pressure provided by the high-pressure pump 3 and the pulse frequency of the pulse generator 4 are adjusted according to the flushing requirement; the lower grid driving belt drives the battery pole piece to move and enter the interlayer; along with the interlayer moving process, the upper side and the lower side of the battery pole piece are washed by the lower high-pressure spray head 632 and the lower high-pressure spray head, the black powder is separated from the battery pole piece and is mixed with water to form mixed liquid, and the washed battery pole piece is discharged from the discharge hole 222; the mixed solution flows from the porous plate shield 112 into the peeling water tank 21 and then into the pipe; under the action of the high-pressure pump 3 and the pulse generator 4, the mixed liquid in the pipeline flows into the self-cleaning filter under pressure; the self-cleaning filter separates water from the soot, which is discharged from the soot outlet 51, and the water flows from the upper high pressure pipe 611 to the lower high pressure nozzle 632 or from the lower high pressure pipe 612 to the lower high pressure nozzle for recycling.
In the embodiment, the track of the battery pole piece is fixed and determined through the interlayer formed between the upper grid conveyer belt 101 and the lower grid conveyer belt 102, so that the damage to the battery pole piece is avoided; the adhesion between the black powder and the pole piece is reduced on the battery pole piece after pretreatment, the black powder on the top surface and the bottom surface of the pole piece is respectively washed by the lower high-pressure spray head 632 and the lower high-pressure spray head, the pole piece is washed by the multi-frequency pulse high-pressure water, the damage to the battery pole piece is small, and the possible black powder entrainment caused by the damage and bending of the battery pole piece is avoided; meanwhile, the washing speed is high, the washing is clean, metal scraps mixed in the black powder are less, the stripping efficiency of the black powder on the pole piece is improved, and relatively pure black powder can be obtained; the device has a simple structure and is convenient to assemble and use.
It is apparent that the above examples are given by way of illustration only and are not limiting of the embodiments. Other variations or modifications of the above teachings will be apparent to those of ordinary skill in the art. It is not necessary here nor is it exhaustive of all embodiments. While still being apparent from variations or modifications that may be made by those skilled in the art are within the scope of the invention.
Claims (10)
1. The efficient water stripping device for the lithium battery pole piece is characterized by comprising a bracket (1), a stripping water tank (2), a driving device, a conveying device, a flushing device and a main controller (8);
the support (1) is horizontally arranged, and one end of the top surface is provided with a stripping water tank (2); the stripping water tank (2) comprises a stripping water tank (21) and an upper tank body (22); the top of the stripping water tank (21) is provided with an opening, an upper box body (22) is arranged at the opening, one end of the upper box body (22) is provided with a feed inlet (221), and the other end of the upper box body and the top end of the stripping water tank (21) form a discharge hole (222);
the conveying device comprises a roll shaft (91), an upper grid conveyor belt (101) and a lower grid conveyor belt (102); the roll shafts (91) are transversely arranged, and the two ends of the roll shafts are rotationally connected with the stripping water tank (21) or the upper box body (22); the upper grid conveyer belt (101) is arranged on the upper box body (22) through a roll shaft (91), and belt roller transmission is formed between the upper grid conveyer belt and the roll shaft (91); the lower grid conveyer belt (102) is arranged on the stripping water tank (21) through a roll shaft (91), and belt roller transmission is formed between the lower grid conveyer belt and the roll shaft (91); an interlayer is formed between the bottom surface of the upper grid conveyor belt (101) and the lower grid conveyor belt (102) and is used for fixing and conveying the pretreated battery pole pieces; the sizes of the upper grids of the upper grid conveyor belt (101) and the lower grid conveyor belt (102) can prevent battery pole pieces from falling off the grids;
the driving device is arranged at one side of the stripping water tank (2) and is used for driving the roll shaft (91) to rotate so as to drive the upper grid conveyor belt (101) and the lower grid conveyor belt (102) to move;
the flushing device comprises a high-pressure pump (3), a pulse generator (4), an upper connecting pipe (621), an upper high-pressure spray head (631), a lower connecting pipe (622), a lower high-pressure spray head (632) and an automatic cleaning filter (5); the stripping water tank (21) is characterized in that a pipeline is connected to one side surface of the stripping water tank (21), an upper high-pressure pipeline (611) and a lower high-pressure pipeline (612) are arranged at the other end of the pipeline, the upper high-pressure pipeline (611) penetrates through one side wall of the stripping water tank (2) and is communicated with an upper connecting pipe (621) which is longitudinally arranged, a plurality of upper high-pressure spray heads (631) are rotationally connected to one side of the upper connecting pipe (621), the lower high-pressure pipeline (612) penetrates through one side surface of the stripping water tank (2) and is communicated with a lower connecting pipe (622) which is longitudinally arranged, and a lower high-pressure spray head (632) is rotationally connected to one side of the lower connecting pipe (622); the upper high-pressure spray head (631) and the lower high-pressure spray head (632) are used for flushing black powder on the upper side of the battery pole piece and black powder on the lower side of the battery pole piece; the pipeline is provided with a high-pressure pump (3) and a pulse generator (4); the bottom end of the high-pressure pump (3) is fixedly connected with the support (1); the high-pressure pump (3) is used for controlling the water pressure of water sprayed by the upper high-pressure spray nozzle (631) and the lower high-pressure spray nozzle (632); the pulse generator (4) is used for controlling the pulse of water spraying of the upper high-pressure spray head (631) and the lower high-pressure spray head (632); the automatic cleaning filter (5) is communicated with the pipeline, the bottom of the automatic cleaning filter is fixedly connected with the bracket (1), and the bottom of the automatic cleaning filter (5) is provided with a black powder outlet (51);
the main controller (8) is arranged on one side of the stripping water tank (2) and is electrically connected with the driving device, the high-pressure pump (3), the pulse generator (4) and the automatic cleaning filter (5);
the lower grid conveyor belt (102) drives the battery pole piece input by the feed inlet (221), an interlayer for fixing the battery pole piece is formed between the lower grid conveyor belt (101), and the upper high-pressure spray head (631) and the lower high-pressure spray head (632) wash black powder on the surface of the battery pole piece; the flushed pole piece is discharged from a discharge hole (222), and the black powder enters a stripping water tank (21) along with water spraying, is transported to an automatic cleaning filter (5) through a pipeline and is discharged from a black powder outlet (51).
2. The efficient water stripping device for the lithium battery pole piece according to claim 1, wherein the feeding hole (221) is rectangular, a door plate (2211) is arranged at the feeding hole (221), one side edge of the door plate (2211) is rotationally connected with one side edge of the feeding hole (221), and a sliding switch (2212) for controlling whether the feeding hole (221) is closed or not is arranged at the other side edge of the door plate (2211).
3. The efficient water stripping apparatus for lithium battery pole pieces as claimed in claim 1, wherein the driving means comprises a driving motor (71), a gear and a gear case (72);
a step is arranged on one side surface of the top of the stripping water tank (21); the top surface of the step is fixedly provided with a gear box (72), a driving motor (71) is fixed on the gear box (72), and an output shaft penetrates through one side wall of the gear box (72) and is fixedly connected with a gear; the gear box (72) is rotationally connected with another gear, and the two gears are in gear transmission; the two gears are fixedly connected with the end parts of the roller shafts (91) arranged at one end of the upper grid conveyor belt (101) or the lower grid conveyor belt (102) far away from the feed inlet (221) respectively;
the driving motor (71) is electrically connected with the main controller (8) and is used for driving the gear to rotate.
4. The efficient water stripping device for the lithium battery pole piece, as claimed in claim 1, is characterized in that a drain valve (211) is arranged at the bottom of the stripping water tank (21).
5. The efficient water stripping device for lithium battery pole pieces according to claim 1, wherein the number of the upper high-pressure spray heads (631) is identical to the number of the lower high-pressure spray heads (632), and the upper high-pressure spray heads and the lower high-pressure spray heads are opposite to each other, so that unbalance of the positions of the battery pole pieces in the flushing process is avoided.
6. The efficient water stripping device for the lithium battery pole piece according to claim 3, wherein the main controller (8) is a PLC control cabinet, the main controller (8) is installed on a step at the top of the stripping water tank (21), and an integrated touch screen (81) is arranged on one side surface, far away from the upper box body (22), of the main controller (8).
7. The efficient water stripping device for the lithium battery pole pieces, as claimed in claim 1, further comprises an isolation cover (111), wherein the isolation cover (111) is fixedly connected with the upper box body (22); the top of the isolation cover (111) is rotationally connected with a roller shaft (91) which is transversely arranged, and the roller shaft (91) is connected with the upper grid conveyor belt (101); an opening is formed in the bottom of the isolation cover (111) and can cover the top surface of the interlayer; one end of the upper high-pressure pipeline (611) passes through the isolation cover (111) and is connected with an upper connecting pipe (621) arranged inside the isolation cover (111).
8. The efficient water stripping device for the lithium battery pole pieces, as claimed in claim 7, further comprises a porous plate isolation cover (112), wherein the porous plate isolation cover (112) is fixedly connected with the stripping water tank (21); the bottom of the porous plate isolation cover (112) is rotationally connected with a roller shaft (91) which is transversely arranged, and the roller shaft (91) is connected with the lower grid conveyor belt (102); an opening is arranged at the top of the porous plate isolation cover (112) and can cover the bottom surface of the interlayer; one end of the lower high-pressure pipeline (612) passes through the porous plate isolation cover (112) and is connected with a lower connecting pipe (622) arranged inside the porous plate isolation cover (612).
9. The efficient water stripping device for the lithium battery pole pieces, as claimed in claim 8, further comprising a guide roller (92), wherein the perforated plate isolation cover (112) and the isolation cover (111) are respectively and rotatably connected with the guide roller (92) which is transversely arranged; a guide roller (92) in a shielding cover (111) is connected with the top surface of the interlayer, and a guide roller (92) in a porous plate shielding cover (112) is connected with the bottom surface of the interlayer; the guide rollers (92) are used to make the sandwich more stable during the process of securing and transporting the battery pole pieces.
10. The efficient water stripping device for the lithium battery pole piece, as claimed in claim 1, is characterized by further comprising a pushing handle (11) and a universal wheel (12); the pushing handle (11) is vertically arranged and fixedly connected with one end of the bracket (1) far away from the stripping water tank (2); the universal wheels (12) are arranged at four corners of the bottom surface of the bracket (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211695200.4A CN116093480A (en) | 2022-12-28 | 2022-12-28 | High-efficient water stripping off device of lithium cell pole piece |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211695200.4A CN116093480A (en) | 2022-12-28 | 2022-12-28 | High-efficient water stripping off device of lithium cell pole piece |
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| CN116093480A true CN116093480A (en) | 2023-05-09 |
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| CN202211695200.4A Pending CN116093480A (en) | 2022-12-28 | 2022-12-28 | High-efficient water stripping off device of lithium cell pole piece |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117399407A (en) * | 2023-12-14 | 2024-01-16 | 广东百耐信智能装备有限公司 | Waste lithium battery recycling and crushing device |
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- 2022-12-28 CN CN202211695200.4A patent/CN116093480A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117399407A (en) * | 2023-12-14 | 2024-01-16 | 广东百耐信智能装备有限公司 | Waste lithium battery recycling and crushing device |
| CN117399407B (en) * | 2023-12-14 | 2024-02-20 | 广东百耐信智能装备有限公司 | Waste lithium battery recycling and crushing device |
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