Automatic feeder for lithium battery crushing and recycling system

Abstract

The application relates to an automatic feeder of a lithium battery crushing and recycling system; the technical scheme solved by the application comprises a cylinder, the cylinder can reciprocate around the axis thereof, a hatch is arranged on the side wall of the upper end of the cylinder, a discharge pipe is arranged on the side wall of the left side of the lower end of the cylinder, a first arc-shaped plate coaxial with the cylinder is arranged below the cylinder, the outlet of the discharge pipe can be slidably attached to the first arc-shaped plate, a second arc-shaped plate is arranged below the first arc-shaped plate coaxially and at intervals, a discharge hopper is arranged at the lower end of the second arc-shaped plate, and the application effectively solves the following three requirements faced by the feeding of waste batteries to a shredder: the feeding needs to be intermittent; the feeding amount needs to be moderate; and the feeding needs to be dispersed. Once the filling is completed, the shredder can continuously feed, the equipment automatically moves, labor is saved in the process, the efficiency is improved, and the standardized feeding of the feeding is effectively ensured, so that the feeding is safer.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of lithium battery recycling equipment, in particular to an automatic feeder of a lithium battery crushing and recycling system. BACKGROUND

[0002] Benefiting from the vigorous demand of new energy automobile, mobile phone, notebook computer, digital product and other markets, the lithium battery recycling industry has been in a state of growth. In recent years, with the popularity and accelerated replacement of these products, the scale of the lithium battery recycling market has been expanding.

[0003] After the lithium battery is recycled, the battery is discharged, and the separator paper, black powder, copper aluminum, positive and negative electrode materials and other substances in the lithium battery are separated out through multiple treatments such as shredder, crusher, air flow separator, magnetic separator, pulverizer, linear screen and grinder, so as to realize resource recycling and reuse. The initial recycling process of the lithium battery is to put the discharged battery into the shredder, and the battery is shredded into 3-4cm size fragments. After a series of subsequent continuous recycling operations such as crushing and sorting, the fragments are obtained.

[0004] At present, workers generally cooperate with the conveying belt to feed the shredder when feeding the shredder. The raw materials are piled at the end of the conveying belt, and the workers feed the materials on the conveying belt by shovel. The materials are conveyed to the feeding port of the shredder by the conveying belt. The workers need to pay attention to three problems when feeding:

[0005] Firstly, the amount of each shovel should not be too much. The reason is that: the lithium battery is discharged by industrial salt water discharge method. The same batch of batteries is soaked in salt water for a period of time. The discharge time of the same batch of batteries is consistent, but the original waste battery contains different amounts of electricity, and there is a situation of incomplete discharge. Controlling the amount of single feeding can effectively reduce the explosion problem caused by incomplete discharge of the battery when tearing, which can greatly reduce the safety hazard.

[0006] Secondly, the workers should spread the materials along the width of the conveying belt when feeding the materials on the conveying belt. The reason is that: the principle of the shredder is to crush the materials by extruding the materials with two shredding rollers rotating in the same direction. Therefore, the materials can be fed between the two shredding rollers. If the workers pile up the materials on the conveying belt when feeding, the materials will still be piled up in a certain place when being conveyed to the shredding roller. The piled materials have the risk of explosion and fire when being shredded, and also cause the idle of other positions of the shredding roller feeding port, which causes waste of equipment.

[0007] Thirdly, the workers should keep appropriate interval when feeding. The reason is that the materials need a certain time to be shredded after entering the shredder. If the interval is too large, the machine will be idle, and the production efficiency will be low. If the interval is too small, the materials will be stacked in the shredder, which also has the safety hazard of explosion and fire.

[0008] The prior art provides a system for recycling lithium batteries with an application number of 202310090329.0 and a patent name of a recycling lithium battery system. Workers manually feed the conveyor belt, and the system detects the electric quantity of the lithium battery and sorts it. This type of feeding system generally requires workers to continuously and intermittently feed, and has requirements for the worker's feeding frequency, single feeding amount, and battery distribution after feeding. This results in high work intensity for workers when feeding, high requirements for worker proficiency, and poor working environment for the feeding station, which is close to the shredder. The waste smoke dust pollution poses a great safety hazard to workers. Therefore, there is an urgent need for an automatic feeding device for the shredder to meet the above feeding requirements, reduce worker participation, improve the mechanization and automation of feeding, and improve production efficiency. SUMMARY

[0009] To overcome the defects of the prior art, the present application provides an automatic feeder for a lithium battery crushing and recycling system, which effectively solves the problems of the prior art in the background art.

[0010] The technical solution to solve the problem includes a cylindrical shaft that is horizontal and closed at both ends. The cylinder can rotate back and forth around its axis. A hatch is provided on the side wall of the upper end of the cylinder. Each of the left and right side walls of the lower end of the cylinder is provided with an outlet pipe that communicates with it. A first arc-shaped plate coaxial with the cylinder is provided below the cylinder. The outlet of the outlet pipe can slide and fit with the first arc-shaped plate. During the back-and-forth rotation of the cylinder, the outlet ends of the outlet pipes on the left and right sides are alternately separated from the first arc-shaped plate. When the outlet ends of the outlet pipes are separated from the first arc-shaped plate, the outlet ends of the outlet pipes are in an inclined downward state. A second arc-shaped plate is coaxially and spaced apart below the first arc-shaped plate. The two ends of the second arc-shaped plate are higher than the two ends of the first arc-shaped plate. A discharge hopper is provided at the lower end of the second arc-shaped plate.

[0011] Preferably, the front end of the second arc-shaped plate is provided with a baffle, which forms a cavity with an open upper end with the second arc-shaped plate. The front and rear ends of the first arc-shaped plate are fixed to the baffle.

[0012] Preferably, the front and rear ends of the cylinder are each coaxially fixed with a shaft. One end of the shaft is rotatably mounted on the corresponding side baffle, and the other end of the shaft penetrates the corresponding side baffle and is coaxially mounted with a first bevel gear. The outside of the baffle is fixed with a second bevel gear driven by a stepping motor and meshing with the first bevel gear.

[0013] Preferably, a support is provided below the second arc-shaped plate. The support includes four legs, and the height of the four legs is adjustable.

[0014] Preferably, the cross section of the discharge port below the discharge hopper is a long rectangle.

[0015] Preferably, the cross section of the discharge pipe is strip-shaped rectangle, and the length of the discharge pipe is adapted to the height of the cylinder, and the outlet end of the discharge pipe is arc-shaped and adapted to the inner arc surface of the first arc-shaped plate.

[0016] Preferably, the hatch is a flat-hinged door, the hatch is arc-shaped, one end of the hatch is hinged to the cylinder through a hinge, the other end of the hatch is provided with an extension, the extension is in abutting fit with the side wall of the cylinder when the hatch is closed, and the extension of the hatch is provided with a fastening bolt for fixing the hatch to the cylinder.

[0017] The application effectively solves the three requirements faced when feeding the waste battery to the shredder: the first requirement is intermittent feeding, the second requirement is moderate feeding amount, and the third requirement is dispersed feeding. The intermittent feeding of the waste lithium battery is realized through the intermittent reciprocating rotation of the cylinder, the moderate feeding amount is limited by the volume of the cup and the discharge pipe, and the material distribution is limited by the shape of the discharge pipe and the shape of the discharge hopper, so that the material can be uniformly distributed in the shredder. BRIEF DESCRIPTION OF DRAWINGS

[0018] Fig. 1 It is a front view of the application.

[0019] Fig. 2 It is a front view of the application.

[0020] Fig. 3 It is a left view of the application.

[0021] Fig. 4 It is a left view of the application. EMBODIMENT

[0022] The specific embodiment of the application will be further described in detail below with reference to the accompanying drawings.

[0023] From the above, Figs. 1 to 4 It can be seen that the application comprises a cylinder 1 with its axis horizontal and both ends closed, the cylinder 1 can reciprocate left and right around its axis, a hatch 2 is arranged on the side wall of the upper end of the cylinder 1, one discharge pipe 3 is arranged on the side wall of the lower end of the cylinder 1 on each side, a first arc-shaped plate 4 coaxial with the cylinder 1 is arranged below the cylinder 1, the outlet of the discharge pipe 3 can slide and abut the first arc-shaped plate 4, during the reciprocating process of the cylinder 1, the outlet ends of the discharge pipes 3 on the left and right sides are alternately separated from the first arc-shaped plate 4, and when the outlet ends of the discharge pipes 3 are separated from the first arc-shaped plate 4, the discharge pipes 3 are in a state of outlet end inclined downward, a second arc-shaped plate 5 is arranged below the first arc-shaped plate 4 coaxially and at intervals, the two ends of the second arc-shaped plate 5 are higher than the two ends of the first arc-shaped plate 4, and a discharge hopper 6 is arranged at the lower end of the second arc-shaped plate 5.

[0024] In order to realize the installation between the cylinder 1, the first arc-shaped plate 4 and the second arc-shaped plate 5, the front end of the second arc-shaped plate 5 is provided with a baffle 7, the baffle 7 forms a cavity with the second arc-shaped plate 5, and the front and rear ends of the first arc-shaped plate 4 are fixed on the baffle 7.

[0025] In order to realize the rotation of the cylinder 1 around the axis, the front and rear ends of the cylinder 1 are coaxially fixed with a rotating shaft, one end of the rotating shaft is rotatably installed on the corresponding side baffle 7, the other end of the rotating shaft penetrates the corresponding side baffle 7 and is coaxially installed with a first bevel gear 8, the outer side of the baffle 7 is fixed with a second bevel gear 9 driven by a stepping motor and meshing with the first bevel gear 8.

[0026] In order to realize the installation of the device above the shredder, the lower side of the second arc-shaped plate 5 is provided with a support 10, the support 10 comprises four supporting legs, and the height of the four supporting legs can be adjusted.

[0027] In order to realize the convenient feeding of the discharge hopper 6 to the shredder, the cross section of the discharge port of the discharge hopper 6 is a long strip rectangle.

[0028] In order to realize the better discharging of the discharge pipe 3, the cross section of the discharge pipe 3 is a strip rectangle, the length of the discharge pipe 3 is matched with the height of the cylinder 1, and the outlet end of the discharge pipe 3 is arc-shaped and matched with the inner arc surface of the first arc-shaped plate 4.

[0029] In order to facilitate feeding, the hatch 2 is a flat door, the hatch 2 is arc-shaped, one end of the hatch 2 is hingedly connected to the cylinder 1, the other end of the hatch 2 is provided with an extension part, the extension part is limited to fit with the side wall of the cylinder 1 when the hatch 2 is closed, and the extension part of the hatch 2 is provided with a fastening bolt for fixing the hatch 2 on the cylinder 1.

[0030] The specific working process of the present application: when the device is used, the device is fixed above the shredder through the support 10, and the height of the supporting legs of the support 10 is adjusted so that the lower end strip-shaped discharge port of the discharge hopper 6 is opposite to the feeding gap between the two shredding rollers of the shredder, and the height between the discharge hopper 6 and the feeding gap is kept at about 35 centimeters, the hatch 2 on the cylinder 1 is opened, the cylinder 1 is loaded by lifting, the lithium battery is preferably a cylindrical lithium battery when the device is broken, such as 18650 / 16340 / 14500 models, the loading amount should not exceed 1 / 2 of the volume of the cylinder 1, and when loading, the two discharge pipes 3 are moved to the outlet end to contact the first arc-shaped plate 4, at this time, the two discharge pipes 3 are closed, the hatch 2 is located directly above, the hatch 2 is closed after feeding and is fixed by locking screw, at this time, the motor is opened, the motor is a slow speed type stepping motor, the frequency and angle of the reciprocating rotation of the stepping motor are set to meet the use requirements.

[0031] The step motor drives the second bevel gear 9, and the first bevel gear 8 is engaged through the second bevel gear 9 to realize the reciprocating rotation of the cylinder 1, and in the process of the reciprocating rotation of the cylinder 1, the discharge pipes 3 on the left and right sides are intermittently separated from the first arc-shaped plate 4 on the left and right sides of the first arc-shaped plate 4, and the discharge pipe 3 is taken as an example to describe that the uppermost end of the discharge pipe 3 moves downward, at this time, the discharge pipe 3 is unloaded to be an empty pipe state, the discharge pipe 3 moves downward and contacts the first arc-shaped plate 4 and blocks the discharge of the first arc-shaped plate 4, at this time, the discharge pipe 3 forms a material containing cavity, the material containing cavity is provided with a material inlet, and the material inlet faces the material in the cylinder 1, but at this time, the material inlet is above the material, with the gradual rotation of the cylinder 1, the material inlet of the material containing cavity gradually moves downward, and the material gradually moves to the material inlet of the material containing cavity, with the continuous rotation of the cylinder 1, the material on the upper end of the material in the cylinder 1 falls into the material containing cavity, and the material containing cavity is filled with the material and continuously moves in the material containing cavity along with the cylinder 1, and after moving to the limit position, the material containing cavity moves reversely until the material containing cavity is gradually separated from the material in the cylinder 1, with the continuous rotation of the cylinder 1, the discharge pipe 3 is gradually separated from the first arc-shaped plate 4, at this time, the outlet end of the discharge pipe 3 still keeps the state of being inclined downward, after the discharge pipe 3 is separated from the first arc-shaped plate 4, the material falls into the channel formed between the first arc-shaped plate 4 and the second arc-shaped plate 5 along the outlet of the discharge pipe 3 under the action of the gravity of the material itself, and then enters the shredder through the discharge hopper 6, and the reciprocating rotation of the cylinder 1 makes the discharge pipes 3 on the left and right sides move alternately to realize the discharge of the material containing box.

[0032] The device has the following advantages:

[0033] 1, The initial intention of the present application is to solve the three needs faced when the waste batteries are fed into the shredder: first, the feeding needs to be intermittent; second, the feeding amount needs to be moderate; third, the feeding needs to be dispersed, through the intermittent reciprocating rotation of the cylinder 1, the waste lithium batteries are fed into the discharge pipe 3, the intermittent feeding is realized, the feeding amount is limited by the volume of the discharge pipe 3, and the feeding amount is moderate, and through the shape of the discharge pipe 3 and the shape of the discharge hopper 6, the distribution of the material fed into the shredder is limited, so that the material can be uniformly distributed in the shredder.

[0034] 2, In the present application, the material is a cylindrical lithium battery, when the material is fed into the discharge pipe 3 through the cylinder 1, the material on the upper end of the cylinder 1 is used for feeding, the upper end material has strong flowability in the process of the rotation of the cylinder 1, and the mutual extrusion force between the materials is small, so that the material is not easy to be blocked in the inlet of the discharge pipe 3, and the problem of feeding failure caused by the blockage is avoided.

[0035] 3, The continuous reciprocating movement of the cylinder 1 adjusts the shape of the cylindrical material in the cylinder 1, so that the axis of the material is gradually adjusted to be parallel to the axis of the cylinder 1, which can further facilitate the subsequent feeding and prevent the problem of blockage in the feeding process, and the direction is consistent when entering the shredder, which can further prevent the raw material from being broken, and the recovery rate of film products is greatly improved.

[0036] 4The device uses one-time filling to continuously feed the shredder, and the equipment automatically moves. This process saves labor, improves efficiency, and effectively ensures standardized feeding. The device is simple, efficient, and low in production, use, and maintenance costs, making it suitable for wide application.

Claims

1. An automatic feeder for a lithium battery crushing and recycling system, comprising a cylindrical body (1) with a horizontal axis and closed ends, the cylindrical body (1) being rotatable left and right around its axis, a hatch (2) being provided on the upper side wall of the cylindrical body (1), and a discharge pipe (3) communicating with the lower left and right side walls of the cylindrical body (1), and a first arc-shaped plate (4) coaxial with the cylindrical body (1) being provided below the cylindrical body (1), the outlet of the discharge pipe (3) being slidably fitted with the first arc-shaped plate (4), the cylindrical body (1) being rotatable left and right. During the process, the outlet ends of the discharge pipes (3) on the left and right sides alternately detach from the first arc plate (4), and when the outlet end of the discharge pipe (3) detaches from the first arc plate (4), the discharge pipe (3) is in a state of tilting downward at the outlet end. A second arc plate (5) is coaxially spaced below the first arc plate (4). The two ends of the second arc plate (5) are higher than the two ends of the first arc plate (4). A discharge hopper (6) is provided at the lower end of the second arc plate (5). The cross-section of the discharge port below the discharge hopper (6) is a long rectangular strip.

2. The automatic feeder for a lithium battery crushing and recycling system according to claim 1, characterized in that, Each end of the second arc plate (5) is provided with a baffle (7), and the baffle (7) will form a cavity with an open top with the second arc plate (5). The front and rear ends of the first arc plate (4) are fixed on the baffle (7).

3. The automatic feeder for a lithium battery crushing and recycling system according to claim 2, characterized in that, The cylinder (1) has a rotating shaft fixed coaxially at both ends. One end of the rotating shaft is rotatably mounted on the corresponding side baffle (7), and the other end of the rotating shaft passes through the corresponding side baffle (7) and is coaxially mounted with a first bevel gear (8). A second bevel gear (9) driven by a stepper motor and meshing with the first bevel gear (8) is fixed on the outside of the side baffle (7).

4. The automatic feeder for a lithium battery crushing and recycling system according to claim 1, characterized in that, The second arc plate (5) is provided with a support (10) below it. The support (10) includes four legs, and the height of the four legs is adjustable.

5. An automatic feeder for a lithium battery crushing and recycling system according to claim 1, characterized in that, The cross-section of the discharge pipe (3) is a strip rectangle, and the length of the discharge pipe (3) is adapted to the height of the cylinder (1). The outlet end of the discharge pipe (3) is arc-shaped and adapted to the inner arc surface of the first arc plate (4).

6. The automatic feeder for a lithium battery crushing and recycling system according to claim 1, characterized in that, The hatch (2) is a swing door with an arc shape. One end of the hatch (2) is hinged to the cylinder (1) via a hinge. The other end of the hatch (2) is provided with an extension. When the hatch (2) is closed, the extension is limited and fitted against the side wall of the cylinder (1). The extension of the hatch (2) is provided with fastening bolts that can fix the hatch (2) to the cylinder (1).

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