Batch recovery and discharging device for waste lithium iron phosphate battery

Abstract

The application relates to the technical field of battery recycling, in particular to a batch recovery discharging device for waste lithium iron phosphate batteries, which comprises a base fixedly connected to the bottom end of a cylinder, the cylinder is of an open-top structure, a rotating disc is rotatably sleeved at the inner side of the top opening of the cylinder, a plurality of placing mechanisms are located above the rotating disc, each placing mechanism comprises a vertical plate, the bottom end of the vertical plate is fixedly connected to the top surface of the rotating disc, and two electrification rods are fixedly connected to one side of the vertical plate. In the application, the batteries are placed in the placing mechanisms, the placing mechanisms protect and cool the batteries, the processing mechanism discharges the batteries, when the batteries react, the lifting mechanism controls the lifting of the placing mechanism where the reacting batteries are located, the placing mechanism cooperates with the processing mechanism to collect the gas and smoke generated by the batteries, the inert gas is used to cover the periphery of the batteries, the contact between the batteries and the external air is reduced, and the inert gas is used to dilute the gas in the batteries.

Description

Technical Field

[0001] This invention relates to the field of battery recycling technology, specifically a batch recycling and discharging device for waste lithium iron phosphate batteries. Background Technology

[0002] New energy vehicles mostly refer to automobiles driven by new energy sources such as pure electric drive and plug-in hybrid drive. The batteries used in new energy vehicles are mostly ternary lithium batteries or lithium iron phosphate batteries. Before lithium iron phosphate batteries can be recycled, they need to be discharged using a sodium chloride solution. When the battery electrodes come into contact with the salt water, a closed circuit is formed, thus achieving discharge. However, during the discharge process, ions in the salt water can undergo electrochemical reactions and side reactions with the battery electrode materials, easily adhering to the electrodes and increasing in thickness over time, thus affecting discharge efficiency. This is inconvenient. Furthermore, some used batteries may have slight swelling or bulging before discharge, or their internal structure may be damaged. Also, most used batteries retain a certain amount of charge, making discharge difficult. During discharge, a short circuit can occur due to current passing through the salt water, leading to thermal runaway, battery bulging, leakage, or fire, resulting in battery damage. During thermal runaway, the electrolyte and active materials inside the battery undergo violent decomposition, producing a large amount of gas, mainly flammable gases such as hydrogen, and containing some toxic gases. Since the reaction gases are emitted from inside the battery, if they accumulate in large quantities and mix with oxygen in the surrounding environment, they may form an explosive mixture, which is quite dangerous. Furthermore, conventional discharge involves immersing the battery in salt water, which may affect other batteries, further increasing the danger during the discharge process. In addition, it is difficult to collect and treat the gases released by the battery during conventional salt water discharge, and most of them are directly discharged. If the battery discharge volume is large, it may affect the surrounding air environment, which is quite inconvenient. Summary of the Invention

[0003] The purpose of this invention is to provide a batch recycling and discharging device for waste lithium iron phosphate batteries to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, the present invention provides the following technical solution: A batch recycling and discharging device for waste lithium iron phosphate batteries includes: The device comprises a cylinder, a turntable, multiple battery placement mechanisms, a lifting mechanism for raising and lowering the placement mechanisms, and a processing mechanism for discharging the batteries. A base is fixedly connected to the bottom of the cylinder, which has an open top. The turntable rotates and fits inside the top opening of the cylinder. Multiple placement mechanisms are located above the turntable. Each placement mechanism includes a vertical plate, the bottom of which is fixedly connected to the top surface of the turntable. Two power rods are fixedly connected to one side of the vertical plate, each with a sleeve hole at one end. A lead-in rod is slidably fitted inside each sleeve hole, and a return spring is fixedly connected between each lead-in rod and one end of an adjacent sleeve hole. The lifting mechanism is located inside the cylinder, and the processing mechanism is located above the turntable. The multiple placement mechanisms are arranged circumferentially around the processing mechanism.

[0005] Furthermore, each of the two connecting plates is provided with a stop plate on an adjacent side, and multiple return springs are fixedly connected between the two stop plates and the adjacent connecting plates.

[0006] Furthermore, a connecting frame is provided on one side of the upright plate, and two clamping plates are fixedly connected to both ends of one side of the connecting frame. The two clamping plates are slidably engaged with the upright plate on adjacent sides, and grooves are provided on adjacent sides of the two clamping plates. The upright plate has protrusions on opposite sides, and the protrusions are slidably engaged in the interior of adjacent grooves. Rotating shells are rotatably connected to both ends of the connecting frame, and a notch for the electric rod to pass through is opened on the bottom surface of the connecting frame. Connecting plates are fixedly connected to the top and bottom ends of the other side of the connecting frame, and an installation plate is detachably connected between one end of the two connecting plates.

[0007] Furthermore, a limiting ring is fixedly connected to the top of the upright plate, and a guide rod is provided on one side of the upright plate. The guide rod is slidably sleeved inside the limiting ring, and a sliding ring is slidably sleeved on the outer wall of the guide rod. A pressure spring is fixedly connected between the bottom surface of the sliding ring and the bottom end of the guide rod. Annular grooves are provided on both the top and bottom sides of the sliding ring. Two U-shaped blocks are slidably engaged with the sliding ring. The two arms of the U-shaped blocks are slidably engaged inside the two annular grooves. Rotary seats are rotatably connected to the top surfaces of the two rotating shells, and support arms are rotatably connected to the top surfaces of the two rotating seats. One end of each support arm is rotatably connected to one side of the two U-shaped blocks.

[0008] Furthermore, the processing facilities include: A fixed cylinder and a connecting cap are used to store the solution. The fixed cylinder is fixedly connected to the top surface of the turntable. The power rods on multiple placement mechanisms all pass through the fixed cylinder and are fixedly connected to the outer wall of the fixed cylinder. The connecting cap is rotatably connected to the inner side of the top opening of the fixed cylinder. A dispensing tube is fixedly connected to the center of the top surface of the connecting cap.

[0009] Furthermore, each of the multiple placement mechanisms is equipped with a sliding rod, which includes two brush cylinders. The inner walls of the brush cylinders are fixedly bonded with brush bristles. The two brush cylinders on the same sliding rod are respectively movably connected to two power rods on the adjacent placement mechanism. The multiple sliding rods are located inside the fixed cylinder. The top surface of the turntable has multiple guide grooves, and the multiple guide grooves correspond one-to-one with the multiple sliding rods. The bottom end of the sliding rod is slidably engaged in the corresponding guide groove.

[0010] Furthermore, a fixed shell is fixedly connected to the top of the fixed cylinder, and a connecting cover is located below the fixed shell. A guide groove is opened on the bottom surface of the connecting cover. The tops of multiple sliding rods are slidably engaged inside the guide groove. Multiple vent holes are opened on the outer wall of the fixed shell, and multiple circular holes are opened on the top of one side of multiple upright plates. A vent pipe is fixedly connected between the circular hole and the adjacent vent hole. A rotating ring is rotatably sleeved on the inner side wall of the top opening of the fixed shell, and multiple air inlet pipes are fixedly connected to the rotating ring.

[0011] Furthermore, a suction shell is provided outside the fixed shell, and multiple suction pipes are fixedly connected to the outer wall of the suction shell. Multiple placement mechanisms are located between the suction shell and the fixed shell. The suction shell has a U-shaped cross-section, and a guide ring is provided inside the suction shell. Multiple support plates are fixedly connected between the guide ring and the inner wall of the suction shell. One end of each of the multiple air inlet pipes is fixedly connected to the top surface of the suction shell. An L-shaped positioning rod is fixedly connected between the top surface of the connecting cover and the suction shell. Multiple columns are fixedly connected between the bottom surface of the suction shell and the top surface of the cylinder.

[0012] Furthermore, the lifting mechanism includes: The system comprises a riser, a drive box, a double-layered housing for injecting oil into the hydraulic cylinders, and multiple hydraulic cylinders for pushing adjacent placement mechanisms. The bottom end of the riser is fixedly connected to the bottom surface of the cylinder body, and the drive box is fixedly connected to the top end of the riser. The drive box contains a servo motor and a reducer, with the motor shaft of the servo motor fixedly connected to the input end of the reducer and the output end of the reducer fixedly connected to the center of the bottom surface of the turntable. The double-layered housing is rotatably sleeved with the riser. The double-layered housing has an open bottom end, and both the middle and bottom openings of the double-layered housing are rotatably sleeved with collars. The lower collar is fixedly connected to two oil inlet pipes, one of which penetrates the top surface of the upper collar, and both oil inlet pipes penetrate the bottom end of the cylinder body. Multiple hydraulic cylinders correspond one-to-one with multiple placement mechanisms. The movable end of the hydraulic cylinder is fixedly connected to a connecting plate on the adjacent placement mechanism. Both ends of the outer wall of the hydraulic cylinder are fixedly connected to oil guide pipes, and one end of each of the two oil guide pipes is fixedly connected to the double-layered housing. The two oil guide pipes are located above the two collars, and one of the oil guide pipes is equipped with a solenoid valve.

[0013] Furthermore, each of the two rotating shells has a rectangular hole on its opposite side, and a connecting shell is fixedly fitted inside each of the two rectangular holes. The two connecting shells have an open structure on their adjacent sides, and a filter screen is fixedly fitted into each of the adjacent openings of the two connecting shells. The two connecting shells are rotatably connected to a rotating shaft on their opposite sides, and fan blades are fixedly fitted into the outer walls of each of the two rotating shafts. The two fan blades are located inside the two connecting shells respectively. A motor box is fixedly connected to each of the two connecting shells on their opposite sides, and a drive motor is installed inside each of the two motor boxes. The motor shafts of the two drive motors are fixedly connected to the two rotating shafts respectively. A conduit is fixedly connected to each of the two connecting shells on their opposite sides.

[0014] Compared with the prior art, the beneficial effects of the present invention are: 1. By placing the battery into the placement mechanism, and then using the placement mechanism in conjunction with the processing mechanism, the placement mechanism protects and cools the battery, while the processing mechanism discharges the battery. When a reaction occurs inside the battery, the placement mechanism containing the reacting battery can be raised using a lifting mechanism. Then, the placement mechanism, in conjunction with the processing mechanism, collects the gas and smoke emitted by the battery and uses inert gas to cover the area around the battery, reducing the battery's contact with the outside air and diluting the gas inside the battery.

[0015] 2. By pressing down the sliding ring, the support arm drives the two rotating shells to open and create a gap. The battery is placed between the two backing plates through the gap. The backing plates are fixed to the battery by the return spring. The two motors of the battery contact the lead rod and cooperate with the solution inside the fixing cylinder to discharge. Then, the mounting plate is fixed to the two connecting plates. Then, the sliding ring is driven to return to its original position by the backing spring. The support arm pulls the two rotating shells to rotate and close. The drive motor is started to drive the fan blades to rotate. The fan blades draw the external air into the rotating shell through the duct and blow it on the battery. The servo motor is started to drive the turntable to rotate. The gas inside the rotating shell is easily discharged from the rotating shell due to the centrifugal force generated by the turntable, which improves the heat dissipation of the battery. 3. Sensors are used to detect gas and smoke inside the rotating housing. When smoke or abnormal gas is present, the sensors will send a signal, which will then open the solenoid valve below the abnormal battery through the controller, thereby connecting the inside of the hydraulic cylinder with the inside of the double-layer housing. Then, oil is injected and discharged through the hydraulic pump station and two oil inlet pipes. In the two spaces inside the double-layer housing, the hydraulic oil in one space enters the hydraulic cylinder to push the piston and drive the placement mechanism to move, while the hydraulic oil in the other space carries the excess hydraulic oil in the hydraulic cylinder and is discharged through the hydraulic pump station. Then, the solenoid valve and the hydraulic pump station are closed to stop the flow of hydraulic oil in the hydraulic cylinder and inside the double-layer housing, thereby controlling the height of the placement mechanism. 4. When the connecting frame of the placement mechanism and the battery are moved to the top of the upright plate, the sliding ring and the limiting ring abut against each other, which drives the two rotating shells to rotate and open, creating a gap. At the same time, the conduit on the connecting shell is inserted into the vent hole on the fixed shell, so that the fan blade draws inert gas from the fixed shell and blows it toward the battery. Meanwhile, the battery is surrounded by inert gas blown out of the circular hole on the upright plate. The centrifugal force generated by the rotation of the turntable causes the gas to move toward the suction shell, so that the inert gas covers the battery, reducing the contact between the battery and the outside air. The inert gas is also used to dilute the gas produced by the reaction inside the battery. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the processing mechanism and the internal cross-sectional structure of the cylinder in this invention; Figure 3 This is a schematic diagram of the placement mechanism in this invention; Figure 4 This is an exploded view of the placement mechanism structure in this invention; Figure 5 This is a schematic diagram of the internal structure of the connecting cover and the cylinder in this invention; Figure 6 This is a schematic diagram of the fixed shell and suction shell mechanism in this invention; Figure 7 This is a schematic diagram of the lifting mechanism structure in this invention; Figure 8 This is a schematic diagram of the internal cross-sectional structure of the double-layer shell in this invention.

[0017] In the diagram: 100, cylinder; 110, base; 200, turntable; 201, guide groove; 300, placement mechanism; 301, clamping plate; 310, upright plate; 311, limiting ring; 320, rotating shell; 321, rotating seat; 322, support arm; 330, connecting frame; 331, connecting plate; 332, abutment plate; 333, mounting plate; 340, connecting shell; 341, conduit; 342, motor box; 343, fan blade; 350, guide rod; 351, sliding ring; 352, U-shaped block; 360, power supply rod; 36 1. Lead pole; 400. Lifting mechanism; 410. Riser; 420. Drive box; 430. Double-layer housing; 431. Collar; 432. Oil inlet pipe; 440. Hydraulic cylinder; 441. Oil guide pipe; 442. Solenoid valve; 500. Processing mechanism; 510. Fixed cylinder; 520. Connecting cover; 521. Guide groove; 530. Slide rod; 531. Brush cylinder; 540. Fixed shell; 541. Rotating ring; 542. Air inlet pipe; 550. Suction shell; 551. Guide ring; 552. Support plate; 553. Suction pipe. Detailed Implementation

[0018] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0019] Please see Figures 1-8 In this embodiment of the invention, a batch recycling and discharging device for waste lithium iron phosphate batteries includes: The system comprises a cylindrical body 100, a turntable 200, multiple battery placement mechanisms 300, a lifting mechanism 400 for lifting the placement mechanisms 300, and a processing mechanism 500 for discharging the batteries. A base 110 is fixedly connected to the bottom of the cylindrical body 100. The cylindrical body 100 has an open top. The turntable 200 is rotatably fitted inside the top opening of the cylindrical body 100. Multiple placement mechanisms 300 are located above the turntable 200. Each placement mechanism 300 includes a vertical plate 310, and the bottom of the vertical plate 310... The end is fixedly connected to the top surface of the turntable 200. Two power rods 360 are fixedly connected to one side of the upright plate 310. Each of the two power rods 360 has a sleeve hole at one end. A lead rod 361 is slidably sleeved inside each of the two sleeve holes. A spring is fixedly connected between each of the two lead rods 361 and one end of the adjacent sleeve hole. The lifting mechanism 400 is located inside the cylinder 100. The processing mechanism 500 is located above the turntable 200. Multiple placement mechanisms 300 are arranged circumferentially around the processing mechanism 500.

[0020] Specifically, by placing the battery in the placement mechanism 300, the positive and negative terminals of the battery are made to contact the lead rods 361 of the two power-conducting rods 360, which are located inside the processing mechanism 500. The processing mechanism 500 contains a sodium chloride solution. The solution in the processing mechanism 500 discharges the battery through the power-conducting rods 360 and the lead rods 361, thus preventing the battery from directly contacting the solution and reducing the danger caused by direct contact between the battery and the solution. Furthermore, the turntable 200 can be rotated, thereby driving multiple placement mechanisms 300 to rotate. The gas inside the placement mechanism 300 can be naturally moved away from the turntable 200 due to the centrifugal force generated by the rotation of the turntable 200, which facilitates the gas migration inside the placement mechanism 300 to ventilate and cool the new energy vehicle battery.

[0021] Example 1 like Figures 3-4As shown, in this embodiment, each of the two connecting plates 331 has a stop plate 332 on an adjacent side. Multiple return springs are fixedly connected between the two stop plates 332 and the adjacent connecting plates 331. A connecting frame 330 is provided on one side of the upright plate 310, and a locking plate 301 is fixedly connected to both ends of one side of the connecting frame 330. The two locking plates 301 are slidably engaged with the upright plate 310 on adjacent sides, and a groove is provided on each side of the two locking plates 301. The upright plate 310 has protrusions on opposite sides, and the protrusions are slidably engaged in the interior of the adjacent grooves. A rotating shell 320 is rotatably connected to both ends of the connecting frame 330, and a notch for the electric rod 361 to pass through is opened on the bottom surface of the connecting frame 330. The top and bottom ends of the other side of the connecting frame 330 are fixedly connected to the connecting plate 331, and an mounting plate 333 is detachably connected between one end of the two connecting plates 331.

[0022] In this embodiment, the battery is placed between the two abutment plates 332 of the placement mechanism 300, and the two abutment plates 332 clamp the battery under the action of adjacent return springs. Screw holes are provided at one end of the mounting plate 333 and the connecting plate 331. After the abutment plate 332 holds the battery, the mounting plate 333 is fixed to one end of the two connecting plates 331 with screws, thereby initially positioning the battery. The upright plate 310 can close the connecting frame 330 to limit the battery. Then, the two rotating shells 320 are rotated towards each other and closed, so that the two rotating shells 320 wrap around the battery and fix it. The mounting plate 333 has a large number of screw holes, so that the air between the two rotating shells 320 can be discharged through the extra screw holes to dissipate heat during the discharge of the new energy vehicle battery.

[0023] like Figures 3-4 As shown, in this embodiment, a limiting ring 311 is fixedly connected to the top of the upright plate 310, and a guide rod 350 is provided on one side of the upright plate 310. The guide rod 350 is slidably sleeved inside the limiting ring 311, and a sliding ring 351 is slidably sleeved on the outer wall of the guide rod 350. A compression spring is fixedly connected between the bottom surface of the sliding ring 351 and the bottom end of the guide rod 350. Annular grooves are provided on both the top and bottom sides of the sliding ring 351. Two U-shaped blocks 352 are slidably engaged with the sliding ring 351. The two arms of the U-shaped blocks 352 are slidably engaged inside the two annular grooves. Rotating seats 321 are rotatably connected to the top surfaces of the two rotating shells 320, and support arms 322 are rotatably connected to the top surfaces of the two rotating seats 321. One end of each support arm 322 is rotatably connected to one side of the two U-shaped blocks 352.

[0024] In specific implementation, when the connecting frame 330 slides to the bottom of the upright plate 310, the two lead rods 361 are located inside the connecting frame 330. The sliding ring 351, being unobstructed, is pushed upwards by the spring, causing the sliding ring 351 to pull the two rotating shells 320 towards each other and close together via the U-shaped block 352 and the support arm 322. This places the battery within the enclosed space formed by the two rotating shells 320, the upright plate 310, and the mounting plate 333, thus shielding the battery and allowing the battery electrodes to contact the lead rods 361 for discharge. If the battery bulges... In case of leakage or internal reaction, the connecting frame 330 and the two rotating shells 320 can be moved to the top of the upright plate 310, so that the sliding ring 351 abuts against the limiting ring 311, thereby compressing the pressure spring. Then, the sliding ring 351 moves and drives the two rotating shells 320 to rotate in opposite directions through the U-shaped block 352 and the support arm 322, so that the two rotating shells 320 rotate and open to create a gap, which facilitates the removal of smoke and other objects generated by the internal reaction of the battery by the processing mechanism 500, and causes the new energy vehicle battery to detach from the lead rod 361 to stop discharging.

[0025] like Figure 2 and Figures 5-6 As shown, in this embodiment, the processing mechanism 500 includes: A fixed cylinder 510 and a connecting cover 520 are used to store solutions. The fixed cylinder 510 is fixedly connected to the top surface of the turntable 200. Multiple energized rods 360 on the placement mechanisms 300 pass through the fixed cylinder 510 and are fixedly connected to its outer wall. The connecting cover 520 is rotatably connected to the inner side of the top opening of the fixed cylinder 510. A dispensing tube is fixedly connected to the center of the top surface of the connecting cover 520. Multiple placement mechanisms 300 are equipped with sliding rods 530, each including two brush cylinders 531. Brush bristles are fixedly adhered to the inner wall of each brush cylinder 531. The two brush cylinders 531 on the same sliding rod 530 are respectively movably sleeved with two energized rods 360 on adjacent placement mechanisms 300. Multiple sliding rods 530 are located inside the fixed cylinder 510. The turntable 200... Multiple guide grooves 201 are provided on the top surface, and each guide groove 201 corresponds to a multiple slide rod 530. The bottom end of the slide rod 530 is slidably engaged inside the corresponding guide groove 201. A fixed shell 540 is fixedly connected to the top of the fixed cylinder 510, and a connecting cover 520 is located below the fixed shell 540. A guide groove 521 is provided on the bottom surface of the connecting cover 520. The top ends of the multiple slide rods 530 are slidably engaged inside the guide groove 521. Multiple vent holes are provided on the outer wall of the fixed shell 540, and multiple circular holes are provided on the top of one side of the multiple upright plates 310. Ventilation pipes are fixedly connected between the circular holes and adjacent vent holes. A rotating ring 541 is rotatably sleeved on the inner side wall of the top opening of the fixed shell 540, and multiple air inlet pipes 542 are fixedly connected to the rotating ring 541.

[0026] In practice, sodium chloride solution is added to the fixed cylinder 510 through the dispensing pipe. Then, the two electrodes of the battery contact the lead rod 361, causing the battery to discharge into the solution through the lead rod 361 and the energizing rod 360. During discharge, the energizing rod 360, being in direct contact with the solution, develops deposits on its surface. As the turntable 200 rotates, the fixed cylinder 510 and multiple sliding rods 530 rotate synchronously with it. The connecting cover 520 remains fixed in position, and its guide groove 521 is a continuous arc shape. This allows the sliding rod 530 to reciprocate within the guide groove 201 as it rotates around the center of the turntable 200, following the direction of the guide groove 521. This allows the bristles in the brush tube 531 on the sliding rod 530 to scrape away the deposits on the surface of the energizing rod 360. This ensures the battery's discharge efficiency. After the connecting frame 330 moves upward to remove the battery from the discharge state, multiple circular holes on the upright plate 310 enter the connecting frame 330. Then, inert gas is injected into the fixed shell 540 through the air inlet pipe 542. The inert gas enters the space between the two rotating shells 320 through the fixed shell 540 and the air pipe. The gap between the two rotating shells 320 is limited, and the centrifugal force generated by the rotation of the turntable 200 makes it easy for the inert gas to flow through the battery towards the mounting plate 333. This causes the gas and smoke generated by the battery reaction to flow with the flow of the inert gas, which guides the gas and smoke generated by the reaction, reducing the possibility of continued reaction inside the battery. In addition, the inert gas can isolate the battery from the surrounding environment, reducing the contact between the battery interior and the surrounding air.

[0027] like Figures 5-6 As shown, in this embodiment, a suction shell 550 is provided outside the fixed shell 540, and multiple suction pipes 553 are fixedly connected to the outer wall of the suction shell 550. Multiple placement mechanisms 300 are located between the suction shell 550 and the fixed shell 540. The suction shell 550 has a U-shaped cross-section, and a guide ring 551 is provided inside the suction shell 550. Multiple support plates 552 are fixedly connected between the guide ring 551 and the inner wall of the suction shell 550. One end of each of the multiple air inlet pipes 542 is fixedly connected to the top surface of the suction shell 550. An L-shaped positioning rod is fixedly connected between the top surface of the connecting cover 520 and the suction shell 550. Multiple columns are fixedly connected between the bottom surface of the suction shell 550 and the top surface of the cylinder 100.

[0028] In practice, the suction shell 550 is fixed to the cylinder 100 by a column, and the connecting cover 520 and the rotating ring 541 are kept fixed by the positioning rod and the air inlet pipe 542. By connecting the air extraction pipe 553 to a suction machine or other suction equipment, there are gaps between the guide ring 551 and the inner bottom and inner top surfaces of the suction shell 550, which enhances the suction force inside the suction shell 550. Then, the inert gas, the gas and smoke generated by the reaction inside the battery, and the liquid leaked from the battery can be sucked into the suction shell 550 through the gap between the suction shell 550 and the guide ring 551. The gas and smoke can be discharged through the air extraction pipe 553. The suction equipment can be connected to a gas storage device such as a gas storage tank to collect the gas and smoke, reducing the diffusion of gas and smoke into the surrounding environment.

[0029] like Figure 2 and Figures 7-8 As shown, in this embodiment, the lifting mechanism 400 includes: The system includes a riser 410, a drive box 420, a double-layered housing 430 for injecting oil into hydraulic cylinders 440, and multiple hydraulic cylinders 440 for pushing adjacent placement mechanisms 300. The bottom end of the riser 410 is fixedly connected to the inner bottom surface of the cylinder 100. The drive box 420 is fixedly connected to the top end of the riser 410. The drive box 420 contains a servo motor and a reducer, with the motor shaft of the servo motor fixedly connected to the input end of the reducer. The output end of the reducer is fixedly connected to the center of the bottom surface of the turntable 200. The double-layered housing 430 is rotatably sleeved with the riser 410. The double-layered housing 430 has an open bottom end, and both the middle and bottom opening of the double-layered housing 430 are rotatably sleeved with collars 431. Two oil inlet pipes 432 are fixedly connected to the lower collar 431. The top end of one oil inlet pipe 432 passes through the top surface of the upper collar 431, and both oil inlet pipes 432 pass through the bottom end of the cylinder 100. Multiple hydraulic cylinders 440 correspond one-to-one with multiple placement mechanisms 300. The movable end of the hydraulic cylinder 440 is fixedly connected to the connecting plate 331 on the adjacent placement mechanism 300. Both ends of the outer wall of the hydraulic cylinder 440 are fixedly connected to oil guide pipes 441, and one end of each of the two oil guide pipes 441 is fixedly connected to the double-layer shell 430. The two oil guide pipes 441 are located above the two collars 431 respectively. One of the oil guide pipes 441 is equipped with a solenoid valve 442.

[0030] In practice, the controller starts the servo motor, which in turn drives the turntable 200 to rotate via a reducer. The double-layered housing 430 is divided into two spaces by a collar 431 in its middle, and two oil inlet pipes 432 connect to the two spaces respectively. Furthermore, two oil guide pipes 441 on each hydraulic cylinder 440 connect to the two spaces inside the double-layered housing 430. Smoke sensors, gas sensors, and other sensors installed inside the rotating housing 320 can be used to detect the battery status. When gas and smoke are generated inside the battery, the sensors detect the situation and send a signal to the controller. The controller then controls the solenoid valve 442 below the battery placement mechanism 300 to open. The hydraulic cylinder 440 is connected to the interior of the double-layer housing 430. Then, the hydraulic pump station injects and drains oil through the two oil inlet pipes 432. By injecting oil into one space inside the double-layer housing 430, the hydraulic oil enters the adjacent hydraulic cylinder 440 through the oil guide pipe 441, pushing the internal piston and moving the movable end of the hydraulic cylinder 440 to a suitable distance. At the same time, the piston can push the hydraulic oil inside the hydraulic cylinder 440 to squeeze the hydraulic oil in the other space inside the double-layer housing 430 and discharge it from the double-layer housing 430. Then, the controller blocks the flow of hydraulic oil through the solenoid valve 442, thereby controlling the opening and closing of the hydraulic cylinder 440. The sensors, controllers, hydraulic pump station, etc. are all existing technologies and will not be described in detail here.

[0031] Example 2 Based on Embodiment 1, the airflow within the rotating housing 320 can be improved by utilizing the fan blade 343.

[0032] like Figures 3-4 As shown, in this embodiment, rectangular holes are provided on opposite sides of the two rotating shells 320, and connecting shells 340 are fixedly sleeved inside the two rectangular holes. The adjacent sides of the two connecting shells 340 are open structures, and filter screens are fixedly sleeved on the adjacent openings of the two connecting shells 340. Rotating shafts are rotatably connected to opposite sides of the two connecting shells 340, and fan blades 343 are fixedly sleeved on the outer walls of the two rotating shafts. The two fan blades 343 are located inside the two connecting shells 340 respectively. Motor boxes 342 are fixedly connected to opposite sides of the two connecting shells 340, and drive motors are provided inside the two motor boxes 342. The motor shafts of the two drive motors are fixedly connected to the two rotating shafts respectively. Conduits 341 are fixedly connected to opposite sides of the two connecting shells 340.

[0033] In specific implementation, when the battery is discharging and rotating, the motor box 342 is equipped with a battery box, which can power the drive motor, causing the drive motor to rotate the shaft and fan blades 343. This allows external airflow to blow air onto the battery through the duct 341. Combined with the centrifugal force generated by the turntable 200, the airflow between the two rotating shells 320 on the placement mechanism 300 is facilitated to exit through the gap between the mounting plate 333 and the rotating shells 320, as well as the screw holes on the mounting plate 333, thus facilitating heat dissipation for the battery. Furthermore, when the battery moves upward and the two rotating shells 320 rotate to open the gap, the duct 341 is inserted into the vent on the fixed shell 540, thereby drawing inert gas from inside the fixed shell 540 to blow air onto the battery. This improves the coverage of inert gas around the battery and reduces the contact between the battery and the outside air. The end of the duct 341 is made of rubber, making it easy to insert into the vent on the fixed shell 540.

[0034] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0035] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A batch recycling and discharging device for waste lithium iron phosphate batteries, characterized in that, include: The cylindrical body (100) has a base (110) fixedly connected to its bottom end, and the cylindrical body (100) has an open top structure; The turntable (200) is rotatably fitted inside the top opening of the cylinder (100); Multiple placement mechanisms (300) are located above the turntable (200). Each placement mechanism (300) includes a vertical plate (310), and the bottom end of the vertical plate (310) is fixedly connected to the top surface of the turntable (200). Two power rods (360) are fixedly connected to one side of the vertical plate (310), and each of the two power rods (360) has a sleeve hole at one end. A lead rod (361) is slidably sleeved inside each of the two sleeve holes, and a spring is fixedly connected between each of the two lead rods (361) and one end of the adjacent sleeve hole. The lifting mechanism (400) is located inside the cylinder (100); The processing mechanism (500) is located above the turntable (200), and a plurality of placement mechanisms (300) are arranged in a circle around the processing mechanism (500).

2. The batch recycling and discharging device for waste lithium iron phosphate batteries according to claim 1, characterized in that, A connecting frame (330) is provided on one side of the upright plate (310), and a clamping plate (301) is fixedly connected to both ends of one side of the connecting frame (330). The two clamping plates (301) are slidably engaged with the upright plate (310) on adjacent sides, and a groove is provided on the adjacent sides of the two clamping plates (301). The upright plate (310) is provided with protrusions on opposite sides, and the protrusions are slidably engaged in the interior of adjacent grooves. A rotating shell (320) is rotatably connected to both ends of the connecting frame (330), and a notch is provided on the bottom surface of the connecting frame (330) for the electric rod (361) to pass through. A connecting plate (331) is fixedly connected to both the top and bottom ends of the other side of the connecting frame (330), and an installation plate (333) is detachably connected between one end of the two connecting plates (331).

3. The batch recycling and discharging device for waste lithium iron phosphate batteries according to claim 2, characterized in that, The top of the upright plate (310) is fixedly connected to a limiting ring (311), and a guide rod (350) is provided on one side of the upright plate (310). The guide rod (350) is slidably sleeved inside the limiting ring (311), and a sliding ring (351) is slidably sleeved on the outer wall of the guide rod (350). A pressure spring is fixedly connected between the bottom surface of the sliding ring (351) and the bottom end of the guide rod (350). Annular grooves are provided on both the top and bottom sides of the sliding ring (351). Two U-shaped blocks (352) are slidably engaged with the sliding ring (351). The two arms of the U-shaped blocks (352) are slidably engaged with the two annular grooves. Rotary seats (321) are rotatably connected to the top surfaces of the two rotating shells (320), and support arms (322) are rotatably connected to the top surfaces of the two rotating seats (321). One end of the two support arms (322) is rotatably connected to one side of the two U-shaped blocks (352).

4. The batch recycling and discharging device for waste lithium iron phosphate batteries according to any one of claims 2-3, characterized in that, Both rotating shells (320) have rectangular holes on opposite sides, and connecting shells (340) are fixedly fitted inside the two rectangular holes. Both connecting shells (340) have open structures on adjacent sides, and filter screens are fixedly fitted on the adjacent openings of both connecting shells (340). Both connecting shells (340) are rotatably connected to rotating shafts on opposite sides, and fan blades (343) are fixedly fitted on the outer walls of both rotating shafts. The two fan blades (343) are located inside the two connecting shells (340). Both connecting shells (340) are fixedly connected to motor boxes (342) on opposite sides, and drive motors are installed inside the two motor boxes (342). The motor shafts of the two drive motors are fixedly connected to the two rotating shafts respectively. Both connecting shells (340) are fixedly connected to conduits (341) on opposite sides.

5. The batch recycling and discharging device for waste lithium iron phosphate batteries according to claim 4, characterized in that, Each of the two connecting plates (331) is provided with a stop plate (332) on an adjacent side, and multiple return springs are fixedly connected between the two stop plates (332) and the adjacent connecting plate (331).

6. The batch recycling and discharging device for waste lithium iron phosphate batteries according to claim 5, characterized in that, The processing mechanism (500) includes: A fixed cylinder (510) is fixedly connected to the top surface of the turntable (200), and the power rods (360) on the multiple placement mechanisms (300) all penetrate the fixed cylinder (510) and are fixedly connected to the outer wall of the fixed cylinder (510); The connecting cover (520) is rotatably connected to the inside of the top opening of the fixed cylinder (510), and the dispensing tube is fixedly connected to the center of the top surface of the connecting cover (520).

7. The batch recycling and discharging device for waste lithium iron phosphate batteries according to claim 6, characterized in that, Each of the multiple placement mechanisms (300) is equipped with a slide rod (530). The slide rod (530) includes two brush tubes (531). The inner sidewalls of the brush tubes (531) are fixedly bonded with brush bristles. The two brush tubes (531) on the same slide rod (530) are respectively movably connected to two power rods (360) on the adjacent placement mechanism (300). The multiple slide rods (530) are all located inside the fixed cylinder (510). The top surface of the turntable (200) is provided with multiple guide grooves (201), and the multiple guide grooves (201) correspond one-to-one with the multiple slide rods (530). The bottom end of the slide rod (530) is slidably engaged inside the corresponding guide groove (201).

8. The batch recycling and discharging device for waste lithium iron phosphate batteries according to claim 7, characterized in that, The top of the fixed cylinder (510) is fixedly connected to a fixed shell (540), and the connecting cover (520) is located below the fixed shell (540). The bottom surface of the connecting cover (520) is provided with a guide groove (521). The tops of the multiple sliding rods (530) are slidably engaged inside the guide groove (521). The outer wall of the fixed shell (540) is provided with multiple ventilation holes, and the top of one side of the multiple upright plates (310) is provided with multiple circular holes. A ventilation pipe is fixedly connected between the circular holes and the adjacent ventilation holes. A rotating ring (541) is rotatably sleeved on the inner side wall of the top opening of the fixed shell (540), and multiple air inlet pipes (542) are fixedly connected to the rotating ring (541).

9. The batch recycling and discharging device for waste lithium iron phosphate batteries according to claim 8, characterized in that, The fixed shell (540) is provided with a suction shell (550) outside, and multiple suction pipes (553) are fixedly connected to the outer wall of the suction shell (550). Multiple placement mechanisms (300) are located between the suction shell (550) and the fixed shell (540). The suction shell (550) has a U-shaped cross-section, and a guide ring (551) is provided inside the suction shell (550). Multiple support plates (552) are fixedly connected between the guide ring (551) and the inner wall of the suction shell (550). One end of each of the multiple air inlet pipes (542) is fixedly connected to the top surface of the suction shell (550). An L-shaped positioning rod is fixedly connected between the top surface of the connecting cover (520) and the suction shell (550). Multiple columns are fixedly connected between the bottom surface of the suction shell (550) and the top surface of the cylinder (100).

10. The batch recycling and discharging device for waste lithium iron phosphate batteries according to any one of claims 6-9, characterized in that, The lifting mechanism (400) includes: The bottom end of the riser (410) is fixedly connected to the inner bottom surface of the cylinder (100); The drive box (420) is fixedly connected to the top of the riser (410). The drive box (420) is equipped with a servo motor and a reducer. The motor shaft of the servo motor is fixedly connected to the input end of the reducer. The output end of the reducer is fixedly connected to the center of the bottom surface of the turntable (200). The double-layer shell (430) is rotatably sleeved with the riser (410). The double-layer shell (430) has a bottom-open structure, and the middle and bottom opening of the double-layer shell (430) are rotatably sleeved with a collar (431). The lower collar (431) is fixedly connected to two oil inlet pipes (432). The top end of one oil inlet pipe (432) passes through the top surface of the upper collar (431), and both oil inlet pipes (432) pass through the bottom end of the cylinder (100). Multiple hydraulic cylinders (440) correspond one-to-one with multiple placement mechanisms (300). The movable end of the hydraulic cylinder (440) is fixedly connected to the connecting plate (331) on the adjacent placement mechanism (300). Both ends of the outer wall of the hydraulic cylinder (440) are fixedly connected to oil guide pipes (441), and one end of each of the two oil guide pipes (441) is fixedly connected to the double-layer shell (430). The two oil guide pipes (441) are located above the two collars (431), and one of the oil guide pipes (441) is equipped with a solenoid valve (442).

Images