Waste battery core crushing device and crushing method

Abstract

The present invention discloses a waste battery core crushing device and a crushing method thereof, belonging to the field of battery recycling technology. In the present invention, through the designed guiding mechanism, in order to avoid the residual electrolyte of the battery cell in the crushing frame chamber, when the battery cell is fed into the crushing frame from the feeding port, the plate hammer mechanism can rotate the driving part to make the battery cell contact the impact block upward for crushing. When the battery cell is crushed, the electrolyte can be fed into the impact block through the liquid inlet groove on the bottom side of the impact block under the condition of swing stress. After a plurality of impact blocks are filled with a certain amount of electrolyte, it can flow into the impact seat from the flow groove on the rear side of the impact block. The electrolyte in the impact seat can be pumped out and recovered by a pumping device connected to the outside of the liquid tank. This is beneficial to avoid the residual electrolyte in the crushing frame by setting the impact block to accommodate the liquid tank, improve the purity of the waste chips after crushing, facilitate the subsequent drying and screening powder recovery, and improve the efficiency of the waste battery core crushing process.

Description

Technical Field

[0001] The present invention belongs to the technical field of battery recycling, and in particular relates to a waste battery coil core crushing device and a crushing method thereof. Background Art

[0002] The service life of power batteries is generally 5-8 years. After the battery capacity decays to below 80%, it cannot effectively meet the use needs of new energy vehicles. Therefore, power batteries need to be recycled. In terms of power battery core recycling, the process is divided into two stages: pretreatment and chemical treatment. According to the different chemical treatment technologies, it is further divided into wet method, pyrolysis and direct repair and regeneration. The mainstream recycling technology in my country is mainly wet method. The wet method has the advantage of high metal resource recovery rate, but it has problems such as long recycling process and wastewater and waste discharge. During the same period, foreign countries mainly used pyrolysis. This process is relatively simple, and foreign countries have obvious advantages in pyrolysis treatment equipment. However, this method has problems such as low resource recovery rate, high energy consumption, and difficult waste gas treatment. In recent years, domestic and foreign power battery recycling companies have shown a process trend of overall crushing + pyrolysis and wet method combined treatment. At the same time, domestic recycling companies have gradually worked hard on energy conservation and consumption reduction, quality improvement and efficiency improvement.

[0003] The Chinese invention patent with authorization announcement number CN118698684B discloses a battery core crushing device for new energy vehicles and a crushing method thereof, comprising a support frame, a collection box fixedly mounted on the top of the support frame, a crushing box fixedly connected to the top of the collection box, a feed port provided on the top of the crushing box, and further comprising: a baffle fixedly connected to the side wall of the crushing box, a curved surface provided on the top of the baffle, and a plurality of discharge ports provided through the bottom of the baffle; a rotating shaft rotatably connected to the inner wall of the crushing box, and both ends of the rotating shaft respectively extending to the outside of the crushing box; a rotating drive mechanism, It is arranged on the top of the support frame to drive the rotating shaft to rotate; nine crushing knives are all arranged on the surface of the rotating shaft; the controller receives the temperature information value sent by the temperature sensor to control the adjustment mechanism to adjust the distribution position of all movable knives, but in actual use, the crushing knife group structure still adopts an open design, which cannot effectively block the diffusion of electrolyte. The device allows the electrolyte to be retained inside the equipment during the crushing process, resulting in the formation of an electrolyte vapor enrichment area inside the following crushing cavity, aggravating the corrosion rate of metal parts, the amount of electrolyte adhesion on the surface of the crushed product, and increasing the burden of subsequent pyrolysis / leaching processes. There is room for improvement. Summary of the Invention

[0004] The purpose of the present invention is to solve the problem of electrolyte diffusion in the crushing equipment and to propose a waste battery core crushing equipment and a crushing method thereof.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A waste battery roll core crushing device includes a crushing frame, a driving unit is provided on the outside of the crushing frame, and the driving unit is transmission-connected to a plate hammer mechanism, the plate hammer mechanism is connected to the crushing frame, a feeding portion is provided on one side of the top of the crushing frame, and at least two impact seats are connected to the top of the plate hammer mechanism on the inside of the crushing frame, a plurality of impact blocks are arranged in sequence on one side of the impact seat corresponding to the plate hammer mechanism, and a liquid inlet groove is provided on one side of the bottom of each impact block;

[0007] A guiding mechanism is provided on one side of the impact block, and the guiding mechanism includes an abutment pad arranged at the top opening of the impact block, and a moving rod is provided on one side of the bottom of the abutment pad. The abutment pad is tilted and guided to guide the disassembled electrolyte into the liquid inlet tank of the impact block on the other side by lifting the moving rod.

[0008] As a further description of the above technical solution:

[0009] Both sides of the bottom of the abutment pad are provided with accommodating sleeves, and the accommodating sleeves are arranged on the top of the moving rod at the corresponding position, wherein a hinged rod is arranged in the accommodating sleeve on the side where the moving rod is not arranged, and the hinged rod is connected to the impact block.

[0010] As a further description of the above technical solution:

[0011] The guide mechanism includes a fixed plate, which is connected to one side of the inner cavity of the impact block, a plurality of jacking rods are slidably connected to the top of the fixed plate, the top of the jacking rod is connected to the connecting plate, the top of the connecting plate is connected to the jacking sleeve, the jacking sleeve is arranged outside the moving rod, and a second spring is provided on the outer shell of the jacking rod, and the two sides of the second spring are respectively connected to the connecting plate and the corresponding position on one side of the fixed plate, the bottom end of the jacking rod is connected to a wedge block, and one side of the wedge block is connected to a support block, and the bottom of the support block is sequentially connected to multiple other wedge blocks through multiple connecting rods;

[0012] The impact block is provided with grooves at positions corresponding to multiple wedge blocks, and a guide sleeve is connected in the groove, and a guide rod is connected in the guide sleeve. One end of the guide rod is in contact with an inclined surface of one side of the wedge block at the corresponding position, and the other end of the guide rod is connected to a protective plate, which drives the moving rod to trigger the abutment pad through the contact between the protective plate and the material.

[0013] As a further description of the above technical solution:

[0014] One side of the protective plate is connected to a buffer sleeve, and the other side of the buffer sleeve is connected to the corresponding position on one side of the impact block. The outer sleeve of the guide rod is provided with a third spring, and the two ends of the third spring are respectively connected to the inner side of the buffer sleeve and the corresponding position on one side of the guide sleeve.

[0015] As a further description of the above technical solution:

[0016] One side of the counterattack seat is connected with a communicating liquid tank, and the communicating liquid tank is connected with an external liquid collecting pump.

[0017] As a further description of the above technical solution:

[0018] The plate hammer mechanism includes a plate hammer body, which is rotatably connected to the crushing frame. A plurality of plate bodies are provided on the outer peripheral side of the plate hammer body, and the plate body has a cavity. A plurality of hammer teeth are sequentially provided in the plate body cavity, and adjacent hammer teeth are staggered with each other. An overflow plate is connected to the inner cavity of the plate body, and the overflow plate is detachably connected to the plate body. The hammer teeth are detachably connected to the top of the overflow plate. Overflow grooves are provided on both sides of the hammer teeth, and the electrolyte is guided to be discharged outward through the overflow grooves between the staggered hammer teeth.

[0019] As a further description of the above technical solution:

[0020] Overflow grooves are provided on both sides of the top of the overflow plate, and guide plates are connected to positions corresponding to the overflow grooves on both sides of the bottom of the overflow plate, and the bottom of the guide plate extends to one side of the rotating sleeve.

[0021] As a further description of the above technical solution:

[0022] The bottom of the overflow plate is connected to a rotating sleeve, and a accommodating plate is fitted on both sides of the rotating sleeve. Both ends of one side of the accommodating plate are connected to a rod body, and the rod body is slidably connected to a sliding hole opened on one side of the plate body, and a force-bearing plate is connected between the rod bodies on both sides, and the force-bearing plate is located on one side of the outside of the plate body. A first spring is sleeved on the outside of the rod body, and two ends of the first spring are respectively connected to corresponding positions on one side of the accommodating plate and the plate body cavity. The bottom of the hammer tooth is connected to a fixed block, and the bottom of the fixed block is connected to a limiting plate. The top of the overflow plate is connected to a plurality of fixing seats, and the fixing seats are sequentially provided with a plurality of limits along the height direction.

[0023] As a further description of the above technical solution:

[0024] A gas-liquid slip ring is provided on one side of the plate body, and the gas-liquid slip ring is connected to the external suction pump body. A flow pipe is provided at the bottom of the plate body, extending into the plate hammer body and connected to the gas-liquid slip ring.

[0025] As a further description of the above technical solution:

[0026] A method for crushing waste battery cores, comprising the following steps:

[0027] Initialize the equipment, start the crushing frame drive unit, preheat the hammer mechanism to the set speed, start the liquid collection pump connected to the impact seat and the liquid tank, and check the sealing of the gas-liquid slip ring and the external suction pump;

[0028] In the crushing stage, the core is fed and crushed initially. The waste battery core enters the crushing frame through the feeding part. The hammer mechanism rotates at high speed, and the staggered hammer teeth shear and crush the core.

[0029] The electrolyte flows into the inner cavity of the plate body through the hammer tooth overflow groove and is introduced into the gas-liquid slip ring through the guide plate;

[0030] Dynamic electrolyte diversion: the centrifugal force generated by the hammer mechanism drives the electrolyte to flow down the overflow trough. The impact block collects the splashed electrolyte through negative pressure adsorption in the liquid inlet trough. The abutment pad is lifted by the moving rod to form an inclination angle, guiding the residual droplets into the connecting liquid trough.

[0031] Multi-stage crushing and material separation: When the crushed material hits the impact block, the guide rod is triggered to link. The wedge block drives the lifting rod system to adjust the height of the abutment pad to form a stepped guide surface. The protective plate buffer sleeve absorbs the impact energy to prevent debris blockage.

[0032] The electrolyte is harmlessly treated and purified online. The collected electrolyte is transported to the molecular sieve adsorption tower through the gas-liquid slip ring and related pipelines via the suction equipment, and the supercritical CO2 extraction system separates the organic solvent;

[0033] LiPF6 is neutralized by Ca(OH)2 to form a stable LiF-CaF2 complex.

[0034] For waste gas control, a slight negative pressure is maintained in the crushing chamber, the fluorine-containing gas is cracked by plasma, and the cracking products are discharged through the activated carbon adsorption tower to meet the emission standards.

[0035] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0036] 1. In the present invention, a guiding mechanism is designed to avoid residual electrolyte of the battery cell in the crushing frame chamber. When the battery cell is fed into the crushing frame from the feeding port, the plate hammer mechanism can rotate the driving part to make the battery cell contact the impact block upward for crushing. When the battery cell is crushed, the electrolyte can be fed into the impact block through the liquid inlet groove on the bottom side of the impact block under the swing stress. After a plurality of impact blocks are filled with a certain amount of electrolyte, it can flow into the impact seat from the flow groove on the rear side of the impact block. The electrolyte in the impact seat can be pumped out and recovered by a pumping device connected to the outside of the liquid tank. This is beneficial to avoid residual electrolyte in the crushing frame by setting the liquid tank of the impact block, improve the purity of waste chips after crushing, facilitate subsequent drying and screening powder recovery, and improve the crushing efficiency of waste battery cores.

[0037] 2. In the present invention, the plate hammer mechanism is designed to drive the plate hammer body to rotate. At this time, the plate hammer body can rotate to drive the plate body to contact the battery cell. The battery cell will rupture and overflow when it contacts the plate body. The ruptured electrolyte can pass through the overflow groove of the adjacent hammer teeth into the plate body. After entering the overflow groove, the electrolyte can enter the bottom of the plate body through the guidance of the guide plate. At this time, the electrolyte gathered at the bottom of the inner cavity of the plate body can flow into the gas-liquid slip ring through the pipeline, which is convenient for the collection and recovery of the electrolyte. It is beneficial to guide the electrolyte during crushing to avoid the electrolyte from adhering to the crushing frame, thereby improving the processing efficiency.

[0038] 3. In the present invention, through the designed accommodating plate, when the hammer tooth is worn out, the mounting block connected to the plate body can be disassembled through the plate hammer body. At this time, the force-bearing plates on both sides of the plate body can be expanded outward by the elastic force of the first spring. At this time, the force-bearing plates can drive the inner accommodating plate to move outward through the rod body. The accommodating plate moving outward can release the limit on the rotating sleeve. At this time, the hammer tooth at the top can be pulled to pull the overflow plate out of the accommodating plate through the rotating sleeve, which is convenient for modular replacement of damaged hammer teeth and improves the durable processing effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] Figure 1 This is a schematic diagram of the overall structure of a waste battery core crushing device proposed by the present invention;

[0040] Figure 2 This is a schematic diagram of the impact block structure of a waste battery core crushing device proposed by the present invention;

[0041] Figure 3 This is a schematic diagram of the disassembly structure of the guide mechanism of the waste battery core crushing equipment proposed by the present invention;

[0042] Figure 4 The present invention proposes Figure 3 A schematic diagram of the structure of the enlarged part A;

[0043] Figure 5 This is a schematic diagram of the partially disassembled structure of the guide mechanism of the waste battery core crushing equipment proposed by the present invention;

[0044] Figure 6 This is a schematic diagram of the disassembly structure of a waste battery core crushing device proposed by the present invention;

[0045] Figure 7 This is a schematic diagram of the assembly structure of the impact block of the waste battery core crushing equipment proposed by the present invention;

[0046] Figure 8 This is a schematic diagram of the rear view of the impact seat of the waste battery core crushing equipment proposed by the present invention;

[0047] Figure 9 This is a schematic structural diagram of the plate assembly portion of a waste battery core crushing device proposed by the present invention;

[0048] Figure 10 This is a schematic diagram of the main structure of the plate hammer of the waste battery core crushing equipment proposed by the present invention;

[0049] Figure 11 This is a schematic diagram of a half-section structure of a waste battery coil core crushing device proposed by the present invention;

[0050] Figure 12 This is a schematic diagram of the disassembled structure of the plate hammer mechanism of the waste battery core crushing equipment proposed in the present invention.

[0051] Legend:

[0052] 1. Crushing frame; 2. Driving unit; 3. Plate hammer mechanism; 301. Plate hammer body; 302. Plate body; 303. Hammer teeth; 304. Overflow trough; 305. Fixed block; 306. Limit plate; 307. Fixed seat; 308. Limit groove; 309. Overflow plate; 310. Overflow trough; 311. Guide plate; 312. Rotating sleeve; 313. Accommodating plate; 314. Force plate; 315. First spring; 4. Impact seat; 5. Impact block ; 6. Guiding mechanism; 601. Abutment pad; 602. Accommodating sleeve; 603. Fixed plate; 604. Moving rod; 605. Lifting sleeve; 606. Connecting plate; 607. Lifting rod; 608. Second spring; 609. Wedge block; 610. Guide sleeve; 611. Guide rod; 612. Support block; 613. Connecting rod; 614. Buffer sleeve; 615. Protective plate; 616. Third spring; 7. Liquid inlet tank; 8. Connecting liquid tank. DETAILED DESCRIPTION

[0053] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts shall fall within the scope of protection of the present invention.

[0054] See also Figures 1-12 The present invention provides a technical solution: a waste battery core crushing device, comprising a crushing frame 1, a driving part 2 is provided on the outside of the crushing frame 1, and the driving part 2 is transmission-connected to a plate hammer mechanism 3, the plate hammer mechanism 3 is connected inside the crushing frame 1, a feeding part is provided on one side of the top of the crushing frame 1, and at least two impact seats 4 are connected to the top of the plate hammer mechanism 3 on the inner side of the crushing frame 1, a plurality of impact blocks 5 are arranged in sequence on one side of the impact seat 4 corresponding to the plate hammer mechanism 3, and a liquid inlet tank 7 is provided on one side of the bottom of the impact block 5;

[0055] A guiding mechanism 6 is provided on one side of the impact block 5. The guiding mechanism 6 includes an abutment pad 601 provided at the top opening of the impact block 5, and a movable rod 604 is provided on one side of the bottom of the abutment pad 601. The movable rod 604 is lifted to control the tilt of the abutment pad 601 to guide the disassembled electrolyte into the liquid inlet tank 7 of the impact block 5 on the other side.

[0056] A receiving sleeve 602 is provided on both sides of the bottom of the abutment pad 601, and the receiving sleeve 602 is sleeved on the top of the moving rod 604 at the corresponding position. Among them, a hinged rod is provided in the receiving sleeve 602 on the side where the moving rod 604 is not sleeved, and the hinged rod is connected to the impact block 5.

[0057] Specifically: through the designed guiding mechanism 6, in order to avoid the residual electrolyte of the battery cell in the chamber of the crushing frame 1, when the battery cell is fed into the crushing frame 1 from the feeding port, the plate hammer mechanism 3 can rotate through the driving part 2 to make the battery cell contact with the impact block 5 upward for crushing. When the battery cell is crushed, the electrolyte can be fed into the impact block 5 through the liquid inlet groove 7 on the bottom side of the impact block 5 under the swing stress. After a plurality of impact blocks 5 contain a certain amount of electrolyte, it can flow into the impact seat 4 from the flow groove on the rear side of the impact block 5. The electrolyte in the impact seat 4 can be pumped out and recovered by a pumping equipment connected to the outside of the liquid tank 8. It is beneficial to avoid the residual electrolyte in the crushing frame 1 through the setting of the liquid tank of the impact block 5, facilitate the subsequent drying and screening powder recovery, and improve the efficiency of the crushing and processing of waste battery cores.

[0058] See also Figure 2-Figure 5 , the guide mechanism 6 includes a fixed plate 603, the fixed plate 603 is connected to one side of the inner cavity of the counterattack block 5, and a plurality of lifting rods 607 are slidably connected to the top of the fixed plate 603. The top of the lifting rod 607 is connected to a connecting plate 606, and the top of the connecting plate 606 is connected to a lifting sleeve 605. The lifting sleeve 605 is sleeved on the outside of the moving rod 604. A second spring 608 is provided on the outer sleeve of the lifting rod 607. Both sides of the second spring 608 are respectively connected to the connecting plate 606 and the corresponding position on one side of the fixed plate 603;

[0059] The bottom end of the lifting rod 607 is connected to a wedge block 609, and one side of the wedge block 609 is connected to a support block 612. The bottom of the support block 612 is sequentially connected to multiple other wedge blocks 609 through multiple connecting rods 613.

[0060] The impact block 5 is provided with grooves at positions corresponding to the multiple wedge blocks 609, and a guide sleeve 610 is connected to the groove. A guide rod 611 is connected to the guide sleeve 610. One end of the guide rod 611 is in contact with the inclined surface of the wedge block 609 at the corresponding position. The other end of the guide rod 611 is connected to a protective plate 615. The contact between the protective plate 615 and the material drives the moving rod 604 to trigger the abutment pad 601.

[0061] One side of the protective plate 615 is connected to a buffer sleeve 614, and the other side of the buffer sleeve 614 is connected to the corresponding position on the side of the impact block 5. A third spring 616 is provided on the outer sleeve of the guide rod 611, and the two ends of the third spring 616 are respectively connected to the inner side of the buffer sleeve 614 and the corresponding position on the side of the guide sleeve 610;

[0062] One side of the counterattack seat 4 is connected to a communication liquid tank 8, and the communication liquid tank 8 is connected to an external liquid collection pump.

[0063] Specifically, through the designed guiding mechanism 6, when the material contacts the impact block 5, the surface protection plate 615 of the impact block 5 can be forced to move inward when it contacts the waste battery cell, and the protection plate 615 can be forced to drive the guide rod 611 to move, and the movement of the guide rod 611 can squeeze the wedge block 609 on one side, and when the wedge block 609 is squeezed, it can drive the lifting rod 607 to move upward, and after the lifting rod 607 moves, it can drive the connecting plate 606 and the lifting sleeve 605 to move upward, and the lifting sleeve 605 can drive the moving rod 604 to move upward under force, and the movement of the moving rod 604 can squeeze the top abutment pad 601, and the abutment pad 601 can move upward when squeezed, and the upward-moving abutment pad 601 can form an inclined surface, and the abutment pad 601 on the inclined surface can guide the electrolyte remaining on the top of the impact block 5 to flow into the liquid inlet tank 7, thereby effectively reducing the residual electrolyte between the impact blocks 5 and improving the crushing processing effect;

[0064] When the guide rod 611 moves inward, it can squeeze the external third spring 616. The third spring 616 can use its own elastic force to absorb the shaking impact. Moreover, through the designed buffer sleeve 614, the buffer sleeve 614 can close the connecting liquid tank 8 on one side of the impact block 5, thereby preventing the broken battery cell waste from being stuck in the connecting liquid tank 8, thereby improving the movement stability of the protective plate 615.

[0065] See also Figures 9-11 The plate hammer mechanism 3 includes a plate hammer body 301, which is rotatably connected to the crushing frame 1. A plurality of plates 302 are provided on the outer peripheral side of the plate hammer body 301, and the plate body 302 has a cavity, and a plurality of hammer teeth 303 are sequentially provided in the cavity of the plate body 302, and adjacent hammer teeth 303 are staggered with each other. An overflow plate 309 is connected to the inner cavity of the plate body 302, and the overflow plate 309 is detachably connected to the plate body 302. The hammer teeth 303 are detachably connected to the top of the overflow plate 309. Overflow grooves 304 are provided on both sides of the hammer teeth 303, and the electrolyte is guided to be discharged outward through the overflow grooves 304 between the staggered hammer teeth 303;

[0066] Overflow grooves 310 are provided on both sides of the top of the overflow plate 309, and guide plates 311 are connected to the positions corresponding to the overflow grooves 310 on both sides of the bottom of the overflow plate 309. The bottom of the guide plate 311 extends to one side of the rotating sleeve 312.

[0067] A rotating sleeve 312 is connected to the bottom of the overflow plate 309, and a receiving plate 313 is attached to both sides of the rotating sleeve 312. Both ends of one side of the receiving plate 313 are connected to a rod body, and the rod body is slidably connected to the sliding hole opened on one side of the plate body 302, and a force-bearing plate 314 is connected between the rod bodies on both sides. The force-bearing plate 314 is located on the outer side of the plate body 302, and a first spring 315 is sleeved on the outer side of the rod body. The two ends of the first spring 315 are respectively connected to the corresponding positions of the receiving plate 313 and the inner cavity of the plate body 302.

[0068] The bottom of the hammer tooth 303 is connected to a fixed block 305, the bottom of the fixed block 305 is connected to a limit plate 306, the top of the overflow plate 309 is connected to multiple fixed seats 307, and the fixed seats 307 are sequentially provided with multiple limit slots 308 along the height direction;

[0069] Among them, a gas-liquid slip ring is provided on one side of the plate body 302, and the gas-liquid slip ring is connected to the external suction pump body. A flow pipe is provided at the bottom of the plate body 302, extending into the plate hammer body 301 and connected to the gas-liquid slip ring;

[0070] Specifically, the designed plate hammer mechanism 3 can drive the plate hammer body 301 to rotate. At this time, the plate hammer body 301 can rotate to drive the plate body 302 to contact the battery cell. When the battery cell contacts the plate body 302, it will rupture and overflow. The ruptured electrolyte can pass through the overflow groove 304 of the adjacent hammer teeth 303 and enter the plate body 302. After entering the overflow groove 310, the electrolyte can be guided by the guide plate 311 to enter the bottom of the plate body 302. At this time, the electrolyte gathered at the bottom of the inner cavity of the plate body 302 can flow into the gas-liquid slip ring through the pipeline, which is convenient for the collection and recovery of the electrolyte.

[0071] Furthermore, by designing the accommodating plate 313, when the hammer tooth 303 is worn out, the mounting block connected to the plate body 302 can be disassembled through the hammer body 301. At this time, the force-bearing plates 314 on both sides of the plate body 302 can be expanded outward by the elastic force of the first spring 315. At this time, the force-bearing plates 314 can drive the inner accommodating plate 313 to move outward through the rod body. The outward-moving accommodating plate 313 can release the limit of the rotating sleeve 312. At this time, the hammer tooth 303 at the top can be pulled to pull the overflow plate 309 out of the accommodating plate 313 through the rotating sleeve 312, thereby facilitating modular replacement of the damaged hammer tooth 303 and improving the durability of the treatment effect.

[0072] Moreover, through the designed limiting plate 306, the hammer teeth 303 can be clamped into the limiting groove 308 of the corresponding position height through the bottom limiting plate 306, which facilitates the staggered arrangement of the hammer teeth 303. The staggered arrangement of the hammer teeth 303 is conducive to improving the crushing efficiency, and the staggered hammer teeth 303 allow the electrolyte to enter the plate body 302 through the overflow groove 310, which facilitates the collection and discharge of the electrolyte.

[0073] A method for crushing waste battery cores, comprising the following steps:

[0074] Initialize the equipment, start the crushing frame 1 drive unit 2, preheat the hammer mechanism 3 to the set speed, open the impact seat 4 and connect the liquid collection pump to the liquid tank 8, and check the sealing of the gas-liquid slip ring and the external suction pump;

[0075] In the crushing stage, the core is fed and crushed initially. The waste battery core enters the crushing frame 1 through the feeding part. The hammer mechanism 3 rotates at high speed (linear speed 8-15m / s), and the staggered hammer teeth 303 shear and crush the core (the particle size is controlled to 20-50mm).

[0076] The electrolyte flows into the inner cavity of the plate body 302 through the overflow groove 304 of the hammer tooth 303 and is introduced into the gas-liquid slip ring through the guide plate 311.

[0077] Dynamic electrolyte diversion, the centrifugal force generated by the hammer mechanism 3 drives the electrolyte to flow down along the overflow trough 310 (flow rate 0.5-2L / min), the impact block 5 enters the liquid tank 7 through negative pressure adsorption to collect the splashed electrolyte (collection efficiency > 90%), and the abutment pad 601 is lifted by the moving rod 604 to form an inclination angle (5-10°), guiding the residual droplets into the connecting liquid tank 8.

[0078] Multi-stage crushing and material separation: When the crushed material hits the impact block 5, the guide rod 611 is triggered to link, and the wedge block 609 drives the lifting rod 607 system to adjust the height of the abutment pad 601 to form a stepped guide surface;

[0079] The protective plate 615 and the buffer sleeve 614 absorb the impact energy and prevent the debris from clogging.

[0080] The electrolyte is harmlessly treated and purified online. The collected electrolyte is transported to the molecular sieve adsorption tower (ZSM-5 type) through the gas-liquid slip ring and related pipelines via the suction equipment;

[0081] Supercritical CO2 extraction system to separate organic solvents (EC / DMC recovery rate ≥85%);

[0082] LiPF6 is neutralized by Ca(OH)2 to form a stable LiF-CaF2 complex;

[0083] For waste gas control, a slightly negative pressure (-0.03MPa) is maintained in the crushing chamber, and the fluorine-containing gas is cracked by plasma (conversion rate>95%), and the cracking products (CO2, H2O) are discharged in compliance with the standards through the activated carbon adsorption tower.

[0084] In the present invention, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. The term "plurality" refers to two or more, unless expressly limited otherwise. Terms such as "installed," "connected," "connected," and "fixed" should be interpreted broadly. For example, "connected" can mean a fixed connection, a detachable connection, or an integral connection; "connected" can mean a direct connection or an indirect connection through an intermediary. Those skilled in the art will understand the specific meanings of these terms in the present invention based on specific circumstances.

[0085] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solution and inventive concept of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. A waste battery roll core crushing device, comprising a crushing frame (1), a driving part (2) is provided on the outside of the crushing frame (1), and the driving part (2) is connected to a plate hammer mechanism (3), the plate hammer mechanism (3) is connected inside the crushing frame (1), a feeding part is provided on one side of the top of the crushing frame (1), and at least two impact seats (4) are connected to the top of the plate hammer mechanism (3) on the inside of the crushing frame (1), characterized in that: A plurality of impact blocks (5) are arranged in an array on one side of the impact seat (4) corresponding to the plate hammer mechanism (3), and a liquid inlet groove (7) is provided on one side of the bottom of the impact block (5); A guiding mechanism (6) is provided on one side of the impact block (5), the guiding mechanism (6) comprising an abutment pad (601) provided at the top opening of the impact block (5), and a moving rod (604) is provided on one side of the bottom of the abutment pad (601). The abutment pad (601) is tilted and guided to enter the liquid inlet tank (7) of the impact block (5) on the other side by lifting and controlling the moving rod (604); The guiding mechanism (6) includes a fixed plate (603), the fixed plate (603) is connected to one side of the inner cavity of the impact block (5), the top of the fixed plate (603) is slidably connected to a plurality of lifting rods (607), the top of the lifting rod (607) is connected to a connecting plate (606), the top of the connecting plate (606) is connected to a lifting sleeve (605), the lifting sleeve (605) is sleeved outside the moving rod (604), the outer sleeve of the lifting rod (607) is provided with a second spring (608), the two sides of the second spring (608) are respectively connected to the connecting plate (606) and the corresponding position on one side of the fixed plate (603), the bottom end of the lifting rod (607) is connected to a wedge block (609), and one side of the wedge block (609) is connected to a support block (612), and the bottom of the support block (612) is sequentially connected to a plurality of other wedge blocks (609) through a plurality of connecting rods (613); The impact block (5) is provided with grooves at positions corresponding to the plurality of wedge blocks (609), and a guide sleeve (610) is connected in the groove, and a guide rod (611) is connected in the guide sleeve (610), one end of the guide rod (611) is in contact with an inclined surface of one side of the wedge block (609) at the corresponding position, and the other end of the guide rod (611) is connected to a protective plate (615), and the contact between the protective plate (615) and the material drives the moving rod (604) to trigger the abutment pad (601); One side of the protective plate (615) is connected to a buffer sleeve (614), and the other side of the buffer sleeve (614) is connected to a corresponding position on one side of the impact block (5); One side of the counterattack seat (4) is connected to a communication liquid tank (8), and the communication liquid tank (8) is connected to an external liquid collection pump; The plate hammer mechanism (3) includes a plate hammer body (301), the plate hammer body (301) is rotatably connected to the crushing frame (1), a plurality of plate bodies (302) are provided on the outer peripheral side of the plate hammer body (301), the plate body (302) has a cavity, and a plurality of hammer teeth (303) are sequentially provided in the cavity of the plate body (302), and adjacent hammer teeth (303) are staggered with each other, an overflow plate (309) is connected to the inner cavity of the plate body (302), the overflow plate (309) is detachably connected to the plate body (302), the hammer teeth (303) are detachably connected to the top of the overflow plate (309), and overflow grooves (304) are provided on both sides of the hammer teeth (303), and electrolyte is guided to be discharged outward through the overflow grooves (304) between the staggered hammer teeth (303); Overflow grooves (310) are provided on both sides of the top of the overflow plate (309), and guide plates (311) are connected to positions corresponding to the overflow grooves (310) on both sides of the bottom of the overflow plate (309), and the bottom of the guide plate (311) extends to one side of the rotating sleeve (312).

2. The waste battery core crushing device according to claim 1, characterized in that: Both sides of the bottom of the abutment pad (601) are provided with accommodating sleeves (602), and the accommodating sleeves (602) are sleeved on the top of the moving rod (604) at the corresponding position, wherein a hinged rod is provided in the accommodating sleeve (602) on the side where the moving rod (604) is not sleeved, and the hinged rod is connected to the impact block (5).

3. The waste battery core crushing device according to claim 1, characterized in that: The outer sleeve of the guide rod (611) is provided with a third spring (616), and two ends of the third spring (616) are respectively connected to the inner side of the buffer sleeve (614) and one side of the guide sleeve (610) at corresponding positions.

4. The waste battery core crushing device according to claim 1, characterized in that: The bottom of the overflow plate (309) is connected to a rotating sleeve (312), and both sides of the rotating sleeve (312) are fitted with a receiving plate (313). Both ends of one side of the receiving plate (313) are connected to a rod body, and the rod body is slidably connected to a sliding hole opened on one side of the plate body (302), and a force-bearing plate (314) is connected between the two rod bodies. The force-bearing plate (314) is located on the outer side of the plate body (302), and a first spring (315) is provided on the outer sleeve of the rod body. The two ends of the first spring (315) are respectively connected to the corresponding positions of the receiving plate (313) and the inner cavity of the plate body (302). The bottom of the hammer tooth (303) is connected to a fixed block (305), and the bottom of the fixed block (305) is connected to a limiting plate (306). The top of the overflow plate (309) is connected to a plurality of fixed seats (307), and the fixed seats (307) are sequentially provided with a plurality of limiting grooves (308) along the height direction.

5. The waste battery core crushing device according to claim 4, characterized in that: A gas-liquid slip ring is provided on one side of the plate body (302), and the gas-liquid slip ring is connected to an external suction pump body. A flow pipe is provided at the bottom of the plate body (302), extending into the plate hammer body (301) and connected to the gas-liquid slip ring.

6. A method for crushing waste battery cores, applied to the waste battery core crushing device according to any one of claims 1 to 5, characterized in that: The specific steps include: Initialize the equipment, start the crushing frame (1) drive unit (2), preheat the hammer mechanism (3) to the set speed, start the impact seat (4) and the liquid collection pump connected to the liquid tank (8), and check the sealing of the gas-liquid slip ring and the external suction pump; In the crushing stage, the core is fed and initially crushed, the waste battery core enters the crushing frame (1) through the feeding part, the plate hammer mechanism (3) rotates at high speed, and the staggered hammer teeth (303) shear and crush the core; The electrolyte flows into the inner cavity of the plate body (302) through the overflow groove (304) of the hammer tooth (303), and is introduced into the gas-liquid slip ring through the guide plate (311); Dynamic electrolyte diversion: the centrifugal force generated by the plate hammer mechanism (3) drives the electrolyte to flow down along the overflow trough (310); the impact block (5) enters the liquid trough (7) to collect the splashed electrolyte through negative pressure adsorption; the abutment pad (601) is lifted by the moving rod (604) to form an inclination angle, guiding the residual droplets into the connecting liquid trough (8); Multi-stage crushing and material separation: when the crushed material hits the impact block (5), the guide rod (611) is triggered to move in conjunction, and the wedge block (609) drives the lifting rod (607) to adjust the height of the abutment pad (601) to form a stepped guide surface. The protective plate (615) and the buffer sleeve (614) absorb the impact energy to prevent debris from clogging. The electrolyte is harmlessly treated and purified online. The collected electrolyte is transported to the molecular sieve adsorption tower through the gas-liquid slip ring and related pipelines via the suction equipment, and the supercritical CO2 extraction system separates the organic solvent; LiPF6 is neutralized by Ca(OH)2 to form a stable LiF-CaF2 complex; For waste gas control, a slight negative pressure is maintained in the crushing chamber, the fluorine-containing gas is cracked by plasma, and the cracking products are discharged through the activated carbon adsorption tower to meet the emission standards.

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