Waste battery roll core crushing equipment and crushing method thereof

Abstract

The invention discloses waste battery roll core crushing equipment and a crushing method thereof, and belongs to the technical field of battery recovery. According to the invention, through the designed guide mechanism, when a battery cell is fed into the crushing frame from the feeding port, the plate hammer mechanism can rotate through the driving part to enable the battery cell to be in contact with the counterattack block for crushing, so that the battery cell electrolyte is prevented from remaining in the crushing frame cavity; when a battery cell is broken, electrolyte can be fed into the counterattack blocks through a liquid inlet groove in the bottom side of the counterattack blocks under the condition of swinging stress, after a plurality of electrolyte are contained in the counterattack blocks, the electrolyte can flow into the counterattack base from a circulating groove in the rear side of the counterattack blocks, and the electrolyte in the counterattack base can be pumped and recycled through pumping equipment communicated with the outside of the liquid groove. And through the arrangement of the counterattack block containing liquid tank, the electrolyte is prevented from being left in the crushing frame, the cleanliness of waste chips after crushing is improved, subsequent drying, powder screening and recycling are facilitated, and the crushing treatment efficiency of the waste battery roll cores is improved.

Description

Technical Field

[0001] The present invention belongs to the technical field of battery recycling, and particularly relates to a waste battery 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 less than 80%, it cannot effectively meet the usage requirements of new energy vehicles. Therefore, power batteries need to be recycled. In the aspect of the recycling and reuse of power battery cores, the process flow is divided into two stages: pretreatment and chemical treatment. According to different chemical treatment technologies, it is further divided into wet method, pyrometallurgy, and direct repair and regeneration. The mainstream recycling technology in China is mainly the wet method, which has the advantage of high metal resource recovery rate, but there are problems such as long recycling process and wastewater and waste emissions. In the same period abroad, it is mainly pyrometallurgy. This process flow is relatively simple, and foreign countries have obvious advantages in pyrometallurgical treatment equipment. However, this method has problems such as low resource recovery rate, high energy consumption, and difficult waste gas treatment. In recent years, power battery recycling enterprises at home and abroad have all shown a process trend of overall crushing + combined fire and wet treatment. At the same time, domestic recycling enterprises have gradually made efforts in energy conservation, consumption reduction, quality improvement, and efficiency increase.

[0003] A Chinese invention patent with the authorization announcement number CN118698684B discloses a battery core crushing device and a crushing method for new energy vehicles, including a support frame. A collection box is fixedly installed at the top of the support frame. The top of the collection box is fixedly communicated with a crushing box. An inlet is opened at the top of the crushing box. It also includes: a partition block fixedly connected to the side wall of the crushing box. An arc surface is opened at the top of the partition block. A plurality of discharge ports are penetrated and opened at the bottom of the partition block; a rotating shaft rotatably connected to the inner wall of the crushing box, and both ends of the rotating shaft respectively extend to the outside of the crushing box; a rotation driving mechanism arranged at the top of the support frame for driving 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 and adjust the distribution position of all moving knives. However, in actual use, its crushing knife group structure still adopts an open design, which cannot effectively block the diffusion of electrolyte. During the crushing process, the electrolyte is allowed to remain inside the equipment, resulting in the formation of an electrolyte vapor enrichment area inside the following crushing cavity, accelerating the corrosion rate of metal components, increasing the electrolyte adhesion amount on the surface of the crushing product, and increasing the burden of subsequent pyrolysis / leaching processes, and there is room for improvement. Summary of the Invention

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

[0005] In order to achieve the above purpose, the present invention adopts the following technical solutions: A waste battery roll core crushing device comprises a crushing frame, a driving part is arranged on the outside of the crushing frame, and the driving part is connected to a plate hammer mechanism in a transmission manner, the plate hammer mechanism is connected inside the crushing frame, a feeding part is arranged 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 inner side of the crushing frame corresponding to the plate hammer mechanism, 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 arranged on one side of the bottom of the impact block; 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 by lifting the moving rod to guide the disassembled electrolyte into the liquid inlet tank of the impact block on the other side.

[0006] As a further description of the above technical solution: 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.

[0007] As a further description of the above technical solution: The guiding mechanism comprises a fixed plate, which is connected to one side of the inner cavity of the counterattack block, a plurality of lifting rods are slidably connected to the top of the fixed plate, a connecting plate is connected to the top of the lifting rod, a lifting sleeve is connected to the top of the connecting plate, the lifting sleeve is arranged outside the moving rod, a second spring is arranged outside the lifting rod, and the two sides of the second spring are respectively connected to the connecting plate and the corresponding position of one side of the fixed plate, the bottom end of the lifting 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 a plurality of other wedge blocks through a plurality of connecting rods; The impact block is provided with grooves at positions corresponding to multiple wedge blocks, and a guide sleeve is connected in the groove, 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, and the contact between the protective plate and the material drives the moving rod to trigger the abutment pad.

[0008] As a further description of the above technical solution: A buffer sleeve is connected to one side of the protective plate, and the other side of the buffer sleeve is connected to a corresponding position on one side of the impact block. A third spring is provided on the outer sleeve of the guide rod, and 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.

[0009] As a further description of the above technical solution: A communicating liquid tank is connected to one side of the counter-attack seat, and the communicating liquid tank is communicated with an external liquid collecting pump.

[0010] As a further description of the above technical solution: The plate hammer mechanism includes a plate hammer body, which is rotatably connected to the crushing frame. A plurality of plate bodies are arranged on the outer peripheral side of the plate hammer body, and the plate body has a cavity. A plurality of hammer teeth are arranged in sequence in the cavity of the plate body, 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 opened on both sides of the hammer teeth, and the electrolyte is guided to discharge outward through the overflow grooves between the staggered hammer teeth.

[0011] As a further description of the above technical solution: 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.

[0012] As a further description of the above technical solution: The overflow plate is connected to a rotating sleeve at the bottom, 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 the outer side of the plate body. A first spring is sleeved on the outer side of the rod body, and the two ends of the first spring are respectively connected to corresponding positions of the accommodating plate and one side of the plate body cavity, the bottom of the hammer tooth is connected to a fixed block, the bottom of the fixed block is connected to a limiting plate, and the top of the overflow plate is connected to a plurality of fixed seats, and the fixed seats are sequentially provided with a plurality of limit seats along the height direction.

[0013] As a further description of the above technical solution: A gas-liquid slip ring is provided on one side of the plate body, and the gas-liquid slip ring is communicated with an 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.

[0014] As a further description of the above technical solution: A method for crushing waste battery cores, comprising the following steps: Initialize the equipment, start the crushing frame drive unit, preheat the hammer mechanism to the set speed, start the liquid collecting pump connected to the liquid tank of the impact seat, and check the sealing of the gas-liquid slip ring and the external suction pump; In the crushing stage, the core is fed and crushed initially. The waste battery core enters the crushing frame through the feeding part. The plate hammer mechanism rotates at high speed, and the staggered hammer teeth shear and crush the core. 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; Dynamic electrolyte diversion: the centrifugal force generated by the plate hammer mechanism drives the electrolyte to flow down along the overflow tank. The impact block collects the splashed electrolyte through negative pressure adsorption in the liquid inlet tank. The abutment pad is lifted by the moving rod to form an inclination angle, guiding the residual droplets into the connecting liquid tank. Multi-stage crushing and material separation. When the crushed material impacts the counter-attack block, the linkage of the guide rod is triggered. The wedge block drives the jacking rod system to adjust the height of the abutting pad, forming a stepped diversion surface. The buffer sleeve of the protective plate absorbs the impact energy to prevent debris blockage. Harmless treatment of electrolyte, online purification. The collected electrolyte is transported to the molecular sieve adsorption tower via the gas-liquid slip ring and related pipelines by a suction device, and the supercritical CO2 extraction system separates the organic solvent. LiPF6 generates a stable LiF-CaF2 complex through a neutralization reaction with Ca(OH)2.

[0015] Exhaust gas control. A slightly negative pressure is maintained in the crushing cavity. The fluorine-containing gas is cracked by plasma, and the cracking products are discharged up to standard through the activated carbon adsorption tower.

[0016] In summary, due to the adoption of the above technical solutions, the beneficial effects of the present invention are as follows: 1. In the present invention, through the designed guiding mechanism, in order to avoid the residue of the 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 drive the battery cell to contact the counter-attack block upward for crushing through the rotation of the driving part. When the battery cell is crushed, the electrolyte can enter the counter-attack block from the liquid inlet groove at the bottom side of the counter-attack block under the action of the centrifugal force. When a plurality of counter-attack blocks contain a certain amount of electrolyte, it can flow into the counter-attack seat from the flow-through groove at the rear side of the counter-attack block. The electrolyte in the counter-attack seat can be pumped and recovered through the pumping device connected to the external communication liquid tank, which is beneficial to avoid the residue of the electrolyte in the crushing frame through the setting of the liquid storage groove of the counter-attack block, improve the cleanliness of the waste chips after crushing, facilitate subsequent drying, sieving and recycling, and improve the crushing efficiency of the waste battery core.

[0017] 2. In the present invention, through the designed plate hammer mechanism, the main body of the plate hammer can be rotated by driving. At this time, the main body of the plate hammer can drive the plate body to contact the battery cell. When the battery cell contacts the plate body, it will break and overflow. The broken electrolyte can pass through the overflow grooves between adjacent hammer teeth and enter the plate body. After entering the overflow groove, the electrolyte can enter the bottom of the plate body through the guidance of the guiding plate. At this time, the electrolyte converging 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, and is beneficial to guide the electrolyte during crushing, avoid the adhesion of the electrolyte in the crushing frame, and improve the processing efficiency.

[0018] 3. In the present invention, through the designed accommodation plate, when the hammer teeth are worn out, after the mounting block connected to the plate body can be disassembled by the plate hammer main body, the force-receiving plates on both sides of the plate body can expand outwards through the elastic force of the first spring. At this time, the force-receiving plates can drive the inner accommodation plate to move outwards through the rod body. The outward-moving accommodation plate can release the limit on the rotating sleeve. At this time, the hammer teeth located at the top can be pulled to extract the overflow plate from the accommodation plate through the rotating sleeve, which is convenient for modular replacement of the damaged hammer teeth and improves the durability treatment effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 FIG. is a schematic diagram of the overall structure of a waste battery core crushing device proposed by the present invention; Figure 2 FIG. is a schematic diagram of the impact block structure of a waste battery core crushing device proposed by the present invention; Figure 3 FIG. is a schematic diagram of the split structure of the guiding mechanism of a waste battery core crushing device proposed by the present invention; Figure 4 Proposed by the present invention Figure 3 Schematic diagram of the enlarged structure of part A in; Figure 5 FIG. is a schematic diagram of the partially split structure of the guiding mechanism of a waste battery core crushing device proposed by the present invention; Figure 6 FIG. is a schematic diagram of the split structure of a waste battery core crushing device proposed by the present invention; Figure 7 FIG. is a schematic diagram of the assembly structure of the impact block of a waste battery core crushing device proposed by the present invention; Figure 8 FIG. is a schematic diagram of the rear view angle structure of the impact seat of a waste battery core crushing device proposed by the present invention; Figure 9 FIG. is a schematic diagram of the assembly part structure of the plate body of a waste battery core crushing device proposed by the present invention; Figure 10 FIG. is a schematic diagram of the plate hammer main body structure of a waste battery core crushing device proposed by the present invention; Figure 11 FIG. is a schematic diagram of the semi-sectional structure of the plate body of a waste battery core crushing device proposed by the present invention; Figure 12 FIG. is a schematic diagram of the split structure of the plate hammer mechanism of a waste battery core crushing device proposed by the present invention.

[0020] Legend Explanation: 1. Crushing frame; 2. Driving unit; 3. Plate hammer mechanism; 301. Plate hammer body; 302. Plate body; 303. Hammer teeth; 304. Overflow groove; 305. Fixed block; 306. Limiting plate; 307. Fixed seat; 308. Limiting groove; 309. Overflow plate; 310. Overflow groove; 311. Guide plate; 312. Rotating sleeve; 313. Accommodating plate; 314. Force plate; 315. First spring; 4. Counterattack seat; 5. Counterattack 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

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. 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 creative work are within the scope of protection of the present invention.

[0022] See also Figures 1-12 The present invention provides a technical solution: a waste battery roll core crushing device, comprising a crushing frame 1, a driving part 2 is arranged on the outside of the crushing frame 1, and the driving part 2 is connected to a plate hammer mechanism 3 in a transmission manner, the plate hammer mechanism 3 is connected to the crushing frame 1, a feeding part is arranged 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 opened on one side of the bottom of the impact block 5; A guide mechanism 6 is provided on one side of the counter block 5. The guide mechanism 6 includes an abutment pad 601 provided at the top opening of the counter 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 guide the disassembled electrolyte into the liquid inlet tank 7 of the counter block 5 on the other side by lifting the moving rod 604. Both sides of the bottom of the abutment pad 601 are provided with a accommodating sleeve 602, and the accommodating sleeve 602 is 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.

[0023] Specifically: Through the designed guiding mechanism 6, to avoid the residue of the electrolyte of the battery cell in the chamber of the crushing rack 1, when the battery cell is fed into the crushing rack 1 from the feeding port, the plate hammer mechanism 3 can rotate through the driving part 2 to make the battery cell contact the impact block 5 upward for crushing. When the battery cell is crushed, the electrolyte can enter the impact block 5 from the liquid inlet groove 7 at the bottom side of the impact block 5 under the shaking stress. When a number of electrolytes are contained in multiple impact blocks 5, they can flow into the counterattack seat 4 from the flow-through groove at the rear side of the impact block 5. The electrolyte in the counterattack seat 4 can be pumped and recovered through the pumping equipment connected to the external of the connecting liquid groove 8, which is beneficial to avoid the residue of the electrolyte in the crushing rack 1 through the setting of the liquid containing groove of the impact block 5, facilitating subsequent drying, sieving and powder recovery, and improving the crushing treatment efficiency of the waste battery core.

[0024] Please refer to Figures 2-5 , the guiding mechanism 6 includes a fixing plate 603, the fixing plate 603 is connected to one side of the inner cavity of the impact block 5, a plurality of lifting rods 607 are slidably connected to the top of the fixing plate 603, a connecting plate 606 is connected to the top of the lifting rod 607, a lifting sleeve 605 is connected to the top of the connecting plate 606, the lifting sleeve 605 is sleeved outside the moving rod 604, a second spring 608 is sleeved outside the lifting rod 607, and both sides of the second spring 608 are respectively connected to the connecting plate 606 and the corresponding position on one side of the fixing plate 603; The bottom end of the lifting rod 607 is connected to a wedge block 609, and a support block 612 is connected to one side of the wedge block 609. 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; Grooves are provided at the positions of the impact block 5 corresponding to the plurality of wedge blocks 609, and a guide sleeve 610 is connected in the groove. A guide rod 611 is connected in the guide sleeve 610. One end of the guide rod 611 is in contact with the inclined surface on one side of the corresponding wedge block 609, and the other end of the guide rod 611 is connected to a protection plate 615. The protection plate 615 drives the moving rod 604 to trigger the abutting pad 601 by contacting the material; One side of the protection plate 615 is connected to a buffer sleeve 614, the other side of the buffer sleeve 614 is connected to the corresponding position on one side of the impact block 5, and a third spring 616 is sleeved outside the guide rod 611. Both ends of the third spring 616 are respectively connected to the inner side of the buffer sleeve 614 and the corresponding position on one side of the guide sleeve 610; One side of the counterattack seat 4 is connected to a connecting liquid groove 8, and the connecting liquid groove 8 is communicated with an external liquid collecting pump.

[0025] Specifically: through the designed guiding mechanism 6, when the material contacts the counterattack block 5, the protective plate 615 on the surface of the counterattack block 5 can move inward when contacting the waste battery cell, and the protective plate 615 can drive the guide rod 611 to move when receiving force. The movement of the guide rod 611 can squeeze one side of the wedge block 609. When the wedge block 609 is squeezed, it can drive the jacking rod 607 to move upward. After the movement of the jacking rod 607, it can drive the connecting plate 606 and the jacking sleeve 605 to move upward. The jacking sleeve 605 can drive the moving rod 604 to move upward under force. The movement of the moving rod 604 can squeeze the top abutting pad 601. The abutting pad 601 can move upward when being squeezed. The upward moving abutting pad 601 can form an inclined plane. Through the inclined plane of the abutting pad 601, the electrolyte remaining on the top of the counterattack block 5 can be guided into the liquid inlet tank 7, thereby effectively reducing the remaining electrolyte between the counterattack blocks 5 and improving the crushing treatment effect; 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. And, through the designed buffer sleeve 614, the buffer sleeve 614 can seal the communication liquid tank 8 on one side of the counterattack block 5, thereby avoiding the waste chips of the battery cell after crushing from being stuck in the communication liquid tank 8 and improving the moving stability of the protective plate 615.

[0026] Please refer to Figures 9-11 , the plate hammer mechanism 3 includes a plate hammer main body 301. The plate hammer main 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 main body 301. And the plate bodies 302 have cavities. And a plurality of hammer teeth 303 are sequentially provided in the cavities of the plate bodies 302. And the adjacent hammer teeth 303 are arranged staggered with each other. The inner cavity of the plate body 302 is connected with an overflow plate 309. 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 opened on both sides of the hammer teeth 303. The electrolyte is guided to drain outward through the overflow grooves 304 between the staggered hammer teeth 303; Overflow grooves 310 are opened on both sides of the top of the overflow plate 309. And guiding 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 guiding plates 311 extends to one side of the rotating sleeve 312; The bottom of the overflow plate 309 is connected with a rotating sleeve 312. Accommodating plates 313 are attached to both sides of the rotating sleeve 312. Rod bodies are connected to both ends of one side of the accommodating plates 313. The rod bodies are slidably connected to the sliding holes opened on one side of the plate body 302. And a stress plate 314 is connected between the two rod bodies. The stress plate 314 is located on the outer side of the plate body 302. A first spring 315 is sleeved on the rod bodies. The two ends of the first spring 315 are respectively connected to the corresponding positions on one side of the inner cavity of the accommodating plate 313 and the plate body 302.

[0027] A fixing block 305 is connected to the bottom of the hammer tooth 303, a limiting plate 306 is connected to the bottom of the fixing block 305, a plurality of fixing seats 307 are connected to the top of the overflow liquid plate 309, and a plurality of limiting grooves 308 are sequentially formed in the fixing seats 307 along the height direction; Wherein, a gas-liquid slip ring is provided on one side of the plate body 302, and the gas-liquid slip ring is communicated with an external suction pump body. A flow-through pipe is provided at the bottom of the plate body 302 and extends into the plate hammer main body 301 and is communicated with the gas-liquid slip ring; Specifically: Through the designed plate hammer mechanism 3, the plate hammer main body 301 can be driven to rotate. At this time, the plate hammer main body 301 can drive the plate body 302 to contact the battery cell. When the battery cell contacts the plate body 302, it will break and overflow. The broken electrolyte can pass through the overflow tank 304 of the adjacent hammer teeth 303 and enter the plate body 302. After the electrolyte enters the overflow tank 310, it can enter the bottom of the plate body 302 through the guidance of the guiding plate 311. At this time, the electrolyte converging at the bottom of the inner cavity of the plate body 302 can flow through the pipe into the gas-liquid slip ring, which is convenient for the collection and recycling of the electrolyte; Furthermore, through the designed accommodating plate 313, when the hammer teeth 303 are worn, after the mounting block connected to the plate body 302 is disassembled by the plate hammer main body 301, the stress plates 314 on both sides of the plate body 302 can expand outward through the elastic force of the first spring 315. At this time, the stress plates 314 can drive the inner accommodating plate 313 to move outward through the rod body. The outwardly moving accommodating plate 313 can release the limit on the rotating sleeve 312. At this time, the hammer teeth 303 at the top can be pulled to pull the overflow liquid plate 309 out of the accommodating plate 313 through the rotating sleeve 312, so as to facilitate the modular substitution of the damaged hammer teeth 303 and improve the durability treatment effect; Moreover, through the designed limiting plate 306, the hammer teeth 303 can be snapped into the limiting grooves 308 at the corresponding positions and heights through the bottom limiting plate 306, which is convenient for arranging the hammer teeth 303 in an alternating manner. The alternating hammer teeth 303 are beneficial to improving the crushing efficiency, and the electrolyte enters the plate body 302 through the overflow tank 310 through the alternating hammer teeth 303, which is convenient for the collection and discharge of the electrolyte.

[0028] A method for crushing a waste battery core specifically includes the following steps: Equipment initialization, start the driving part 2 of the crushing frame 1, preheat the plate hammer mechanism 3 to the set rotation speed, turn on the liquid collection pump connecting the counterattack seat 4 and the liquid tank 8, and check the sealing performance of the gas-liquid slip ring and the external suction pump; Crushing stage, core feeding and primary crushing, the waste battery core enters the crushing frame 1 through the feeding part, the plate hammer mechanism 3 rotates at a high speed (linear velocity 8-15 m / s), and the staggered hammer teeth 303 perform shearing and crushing on the core (particle size controlled to be 20-50 mm); 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 .

[0029] Dynamic electrolyte diversion, the centrifugal force generated by the plate hammer mechanism 3 drives the electrolyte to flow down along the overflow groove 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.

[0030] 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; The protective plate 615 and the buffer sleeve 614 absorb impact energy and prevent blockage by debris.

[0031] 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; Supercritical CO2 extraction system to separate organic solvents (EC / DMC recovery ≥ 85%); LiPF6 is neutralized by Ca(OH)2 to form a stable LiF-CaF2 complex; For waste gas control, a slight 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 through an activated carbon adsorption tower to meet the emission standards.

[0032] In the present invention, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance; the term "plurality" refers to two or more, unless otherwise clearly defined. The terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; "connected" can be a direct connection or an indirect connection through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0033] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A waste battery core crushing device, comprising a crushing frame (1), a driving part (2) is arranged outside the crushing frame (1), and the driving part (2) is drivingly connected with a plate hammer mechanism (3), the plate hammer mechanism (3) is connected inside the crushing frame (1), one side of the top of the crushing frame (1) is provided with a feeding part, and at least two counterattack seats (4) are connected to the inner side of the crushing frame (1) corresponding to the top of the plate hammer mechanism (3), characterized in that, On one side of the impact seat (4) corresponding to the plate hammer mechanism (3), a plurality of impact blocks (5) are arranged in sequence. On one side of the bottom of the impact block (5), a liquid inlet groove (7) is formed. On one side of the impact block (5), a guiding mechanism (6) is installed. The guiding mechanism (6) includes a butting pad (601) arranged at the top opening of the impact block (5), and on one side of the bottom of the butting pad (601), a moving rod (604) is provided. By lifting the moving rod (604), the butting pad (601) is controlled to tilt to guide the disassembled electrolyte into the liquid inlet groove (7) of the other impact block (5) on the other side.

2. The waste battery core crushing device according to claim 1, characterized in that, On both sides of the bottom of the butting pad (601), accommodating sleeves (602) are provided, and the accommodating sleeves (602) are sleeved on the top of the moving rod (604) at the corresponding positions. Among them, a hinge rod is provided in the accommodating sleeve (602) on the side where the moving rod (604) is not sleeved, and the hinge rod is connected to the inside of the impact block (5).

3. A waste battery core crushing device according to claim 1, characterized in that, The guiding mechanism (6) includes a fixing plate (603). The fixing plate (603) is connected to one side of the inner cavity of the impact block (5). A plurality of lifting rods (607) are slidably connected to the top of the fixing plate (603). 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). A second spring (608) is sleeved outside the lifting rod (607). 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 fixing plate (603). The bottom end of the lifting rod (607) is connected to a wedge block (609), and on one side of the wedge block (609), a support block (612) is connected. 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); At the positions of the impact block (5) corresponding to the plurality of wedge blocks (609), grooves are formed, and a guiding sleeve (610) is connected in the grooves. A guiding rod (611) is connected in the guiding sleeve (610). One end of the guiding rod (611) is in contact with the inclined surface on one side of the corresponding wedge block (609), and the other end of the guiding rod (611) is connected to a protective plate (615). By contacting the material with the protective plate (615), the moving rod (604) is driven to trigger the butting pad (601).

4. A waste battery core crushing device according to claim 3, wherein, On one side of the protective plate (615), a buffer sleeve (614) is connected. The other side of the buffer sleeve (614) is connected to the corresponding position on one side of the impact block (5). A third spring (616) is sleeved outside the guiding rod (611). 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 one side of the guiding sleeve (610).

5. A waste battery core crushing device according to claim 1, characterized in that, On one side of the impact seat (4), a communicating liquid tank (8) is connected, and the communicating liquid tank (8) is communicated with an external liquid collecting pump.

6. A waste battery core crushing device according to claim 1, characterized in that, The plate hammer mechanism (3) includes a plate hammer main body (301). The plate hammer main body (301) is rotatably connected inside the crushing frame (1). A plurality of plate bodies (302) are provided on the outer peripheral side of the plate hammer main body (301). The plate bodies (302) have cavities. A plurality of hammer teeth (303) are sequentially arranged in the cavities of the plate bodies (302). The adjacent hammer teeth (303) are arranged in a staggered manner. An overflow plate (309) is connected to the inner cavity of the plate body (302). The overflow plate (309) is detachably connected inside the plate body (302). The hammer teeth (303) are detachably connected to the top of the overflow plate (309). Overflow grooves (304) are formed on both sides of the hammer teeth (303). The electrolyte is guided to drain outward through the overflow grooves (304) between the staggered hammer teeth (303).

7. The waste battery core crushing device according to claim 6, wherein, Overflow grooves (310) are formed on both sides of the top of the overflow plate (309). 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 plates (311) extends to one side of the rotating sleeve (312).

8. The crushing device for waste battery cores according to claim 7, characterized in that, A rotating sleeve (312) is connected to the bottom of the overflow plate (309). Accommodating plates (313) are attached to both sides of the rotating sleeve (312). Rods are connected to both ends of one side of each accommodating plate (313). The rods are slidably connected in sliding holes formed on one side of the plate body (302). A stress plate (314) is connected between the rods on both sides. The stress plate (314) is located on the outer side of the plate body (302). A first spring (315) is sleeved on the outer side of the rods. Two ends of the first spring (315) are respectively connected to the corresponding positions on one side of the inner cavity of the accommodating plate (313) and the plate body (302). A fixing block (305) is connected to the bottom of the hammer teeth (303). A limiting plate (306) is connected to the bottom of the fixing block (305). A plurality of fixing seats (307) are connected to the top of the overflow plate (309). A plurality of limiting grooves (308) are sequentially formed in the fixing seats (307) along the height direction.

9. The waste battery core crushing device according to claim 8, characterized in that, A gas-liquid slip ring is provided on one side of the plate body (302). The gas-liquid slip ring is communicated with an external suction pump body. A circulation pipeline is provided at the bottom of the plate body (302) and extends into the plate hammer main body (301) and is connected to the gas-liquid slip ring.

10. A method for crushing a waste battery core, characterized in that, Specifically, it includes the following steps: Equipment initialization: Start the driving part (2) of the crushing frame (1), preheat the plate hammer mechanism (3) to the set rotation speed, turn on the liquid collection pump of the counterattack seat (4) communicating with the liquid tank (8), and check the sealing performance of the gas-liquid slip ring and the external suction pump; Crushing stage: Core feeding and primary crushing. The waste battery core enters the crushing frame (1) through the feeding part. The plate hammer mechanism (3) rotates at a high speed, and the staggered hammer teeth (303) perform shearing crushing on the core; The electrolyte flows into the inner cavity of the plate body (302) through the overflow grooves (304) of the hammer teeth (303) and is introduced into the gas-liquid slip ring through the guide plates (311); Dynamic electrolyte diversion, the centrifugal force generated by the plate hammer mechanism (3) drives the electrolyte to flow down along the overflow groove (310), the impact block (5) enters the liquid groove (7) to collect splashed electrolyte through negative pressure adsorption, and the abutment pad (601) is lifted by the moving rod (604) to form an inclination angle, guiding the residual droplets into the connecting liquid groove (8); Multi-stage crushing and material separation. When the crushed material hits the impact block (5), the guide rod (611) is triggered to work in conjunction. 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. The protective plate (615) and the buffer sleeve (614) absorb the impact energy to prevent debris blockage. 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; Exhaust gas control: maintain a slight negative pressure in the crushing chamber, fluorine-containing gas is cracked by plasma, and the cracking products are discharged through an activated carbon adsorption tower to meet the emission standards.

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