Pulverizer for recycling lithium batteries

Abstract

The utility model discloses a lithium battery recycling pulverizer, which comprises a rack, a pulverizing box main body, a pulverizing cutter group and a driving assembly, and the pulverizing cutter group comprises a pulverizing main shaft, a plurality of fixed cutters, a plurality of rotating cutters and a plurality of spacer bushes. Through the design of the spiral cutting edge part and the annular groove on the peripheral surface of the rotating cutter, the problem that a fixed grinding structure of a traditional crusher is easy to block is effectively relieved; due to the fact that the multiple cutting edge parts of the rotating cutter are arranged in the oblique straight line direction, any cutting edge part is meshed with other adjacent cutting edge parts by mastering the time difference relative to the fixed cutter, smashed objects can be obliquely cut, the torque loaded on the rotating cutter can be reduced, and energy consumption is reduced; and the whole crushing process is completely closed, so that dust pollution and overflow are effectively avoided, the workshop production environment is protected, the environmental protection property of the equipment is ensured, and the practicability of the machine is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of lithium battery recycling, especially a lithium battery recycling crusher. BACKGROUND

[0002] Lithium battery is a kind of battery by lithium metal or lithium alloy as positive and negative electrode material and using non-aqueous electrolyte solution, traditional lithium battery is composed of the following five important parts: positive material, negative material, electrolyte, diaphragm and shell, because there are more harmful substances in lithium battery that can pollute the environment, so lithium battery needs to be recycled after attenuation.In processing, first of all, lithium battery shell and metal pole and other large size parts need to be crushed into small size fragments, then further through the crusher, the fragments are crushed into fine particle powder that can be sucked by negative pressure fan.

[0003] The existing battery crusher is mostly through the setting of double pairs of rollers to crush the battery, but in fact, since lithium battery contains iron and nickel with high material hardness, when a large number of recycled fragments are put into the crusher together, it is more likely to be stuck in the crushing opening, causing blockage, and the machine is easy to be damaged.In addition, the existing crusher is mostly non-closed structure, and the dust leaked in the crushing process can easily pollute the production environment, which is harmful to the health of production workers and is not conducive to environmental protection. UTILITY MODEL CONTENTS

[0004] The utility model solves the technical problem of overcoming the defects of prior art, and provides a lithium battery recycling crusher.

[0005] In order to solve the above technical problems, the utility model provides the following technical scheme:

[0006] The utility model relates to a lithium battery recycling crusher, which comprises a rack, a crushing box main body installed on the rack, two cross-placed crushing knife groups rotatably arranged in the crushing box main body and a driving assembly arranged on one side of the crushing box main body, an inlet hopper for containing lithium battery recycling materials is arranged above the crushing box main body, a crushing cavity and a transmission cavity are formed in the crushing box main body, the two crushing knife groups are arranged in the crushing cavity, the crushing knife group comprises a crushing main shaft, a plurality of fixed knives fixed on the side wall of the crushing cavity, a plurality of rotating knives sleeved on the crushing main shaft and a plurality of separators for separating the rotating knives, a discharge hopper is communicated with the bottom of the crushing box main body, and a control box is further fixedly connected to the rack.

[0007] As a preferred technical scheme of the utility model, the driving assembly comprises a speed reducer motor fixed on the rack, a shaft coupling fixedly connected with an output end of the speed reducer motor, a first gear coaxially arranged with the shaft coupling, and a second gear engaged with the first gear, the first gear and the second gear are respectively sleeved on two smashing main shafts, the first gear and the second gear are arranged in parallel in the transmission cavity, a plurality of bearing seats arranged in parallel are arranged on the side wall of the smashing box main body, and the smashing main shafts are pivotally connected to the bearing seats through bearings.

[0008] As a preferred technical scheme of the utility model, the two smashing cutter groups are arranged in parallel, and the rotating cutters on the two smashing cutter groups are arranged in an interlaced manner along the axial direction of the smashing main shaft, so that the recycled materials can be rotated and extruded into the rotating cutters and torn at the same time.

[0009] As a preferred technical scheme of the utility model, the rotating cutters and the spacer sleeves are alternately arranged along the axial direction of the smashing main shaft, and the fixed cutters are uniformly distributed on the side wall of the smashing cavity, and the fixed cutters and the rotating cutters are alternately arranged along the axial direction of the smashing main shaft.

[0010] As a preferred technical scheme of the utility model, a plurality of the rotating cutters are uniformly distributed on the smashing main shaft in a spiral structure, the center of the rotating cutter is a hexagonal hole, the outer circumferential surface of the rotating cutter is formed with a blade part having a valley part and a top part at a predetermined interval, the blade parts are clamped with annular grooves therebetween, the annular grooves of adjacent rotating cutters are connected in communication to form a place for chip retreat, and the blade parts are arranged in a straight line direction to form a row cutter shape with a protruding part.

[0011] As a preferred technical scheme of the utility model, a semicircular filter screen is further fixedly connected in the smashing cavity, the filter screen is arranged below the rotating cutter, and a plurality of uniformly distributed through holes are arranged on the filter screen.

[0012] As a preferred technical scheme of the utility model, the fixed cutter is provided with a circular-arc-shaped notch, the radius of the circular arc matches the outer diameter of the spacer sleeve, and a plurality of the fixed cutters are arranged in a straight line.

[0013] Compared with the prior art, the utility model has the beneficial effects as follows:

[0014] 1. Through the design of the spiral blade part and the annular groove on the outer circumferential surface of the rotating cutter, the problem of easy blockage of the traditional fixed rolling structure is effectively alleviated.

[0015] 2. Because the multiple blades of the rotary cutter are arranged along a diagonal straight line, any blade and other adjacent blades engage with each other by controlling the time difference relative to the fixed blade. This allows for a so-called oblique cut, which cuts the crushed material from one end to the other in sequence. This reduces the torque loaded on the rotary cutter and reduces the energy consumption of the equipment.

[0016] 3. The pulverized powder is collected in a hopper and then enters the next working equipment through a discharge pipe. The entire pulverization process is completely enclosed, effectively avoiding dust pollution and spillage, protecting the workshop production environment, ensuring the environmental friendliness of the equipment, and improving the practicality of the machine. Attached Figure Description

[0017] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a cross-sectional view of the present invention;

[0020] Figure 3 This is a schematic diagram of the main body of the crushing box in this utility model;

[0021] Figure 4 This is an internal schematic diagram of the main body of the crushing box in this utility model;

[0022] Figure 5 This is a schematic diagram of the rotating blade of this utility model;

[0023] In the diagram: 1. Frame; 2. Crushing box body; 3. Crushing blade assembly; 4. Drive assembly; 5. Feed hopper; 6. Crushing chamber; 7. Transmission chamber; 8. Crushing main shaft; 9. Fixed blade; 10. Rotary blade; 11. Spacer; 12. Discharge hopper; 13. Control box; 14. Gear motor; 15. Coupling; 16. First gear; 17. Second gear; 18. Bearing seat; 19. Valley section; 20. Blade section; 21. Annular groove; 22. Filter screen. Detailed Implementation

[0024] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0025] In the attached diagram, all identical reference numerals refer to the same components.

[0026] like Figures 1-5As shown, this utility model provides a lithium battery recycling shredder, including a frame 1, a shredder body 2 fixed to the frame 1 by long bolts, two cross-placed shredder blade assemblies 3 connected by bearings inside the shredder body 2, and a drive assembly 4 disposed on one side of the shredder body 2. A feed hopper 5 for accommodating lithium battery recycling materials is provided above the shredder body 2, and a closed circular feed pipe is provided above the feed hopper 5. The recycling fragments to be shredded enter the feed hopper 5 through the pipe, fall into the shredder body 2, are shredded into powder particles, and then discharged through the pipe.

[0027] In this embodiment, the crushing box body 2 has a crushing chamber 6 and a transmission chamber 7 separated inside. The crushing blade assembly 3 is rotatably installed inside the crushing chamber 6 through a bearing connection. The crushing blade assembly 3 includes a crushing spindle 8, a number of fixed blades 9 fixed to the side wall of the crushing chamber 6 through grooves, a number of rotating blades 10 sleeved on the crushing spindle 8, and a number of spacers 11. The bottom of the crushing box body 2 is connected to a discharge hopper 12. The discharge hopper 12 is connected to the next process through a circular discharge pipe. A control box 13 is also fixedly connected to the frame 1. The control box 13 is electrically connected to the reduction motor 14 and is used to control the start and stop of the reduction motor 14.

[0028] The method of using this utility model is as follows:

[0029] 1. Turn on the switch of the geared motor 14 on the control box 13. The geared motor 14 starts to rotate and drives the first gear 16 and the second gear 17 to rotate through the coupling 15, thereby driving the two crushing main shafts 8 to rotate in the opposite direction.

[0030] 2. The lithium battery recycling fragments to be crushed are transported to the feed hopper 5 through an external conveying pipe (not shown). The fragments enter the crushing chamber 6 from the feed hopper 5. Under the crushing action of the rotating blade 10 and the fixed blade 9, they are crushed into powder particles of a certain size and then fall through the mesh of the filter screen 22 into the discharge hopper 12 for collection.

[0031] 3. After passing through the pipeline at the rear end of the discharge hopper 12, the material is transported to the next processing step.

[0032] Further, the driving assembly 4 comprises a speed reducer motor 14, a shaft coupling 15, a first gear 16 and a second gear 17, preferably, the speed reducer motor 14 and the shaft coupling 15 are fixed on the frame 1 by bolts, the shaft coupling 15 is keyed connected with the output end of the speed reducer motor 14, the first gear 16 is coaxially arranged with the shaft coupling 15, the first gear 16 is engaged with the second gear 17, the first gear 16 and the second gear 17 are respectively sleeved on the two crushing main shafts 8 through key connection, the first gear 16 and the second gear 17 are arranged in parallel in the transmission cavity 7, a plurality of bearing seats 18 are arranged on the side wall of the crushing box main body 2 in parallel, the crushing main shafts 8 are all pivotally connected to the bearing seats 18 through bearings, when the speed reducer motor 14 rotates, the first gear 16 is driven to rotate through the shaft coupling 15, so as to drive the second gear 17 to rotate, thereby driving the two crushing main shafts 8 to rotate towards each other.

[0033] Further, the two crushing knife groups 3 are arranged in parallel, the rotary knives 10 on the two crushing knife groups 3 are arranged alternately along the axial direction of the crushing main shaft 8, since the rotating directions of the two crushing main shafts 8 are opposite, after the recovered materials fall into the crushing cavity 6, the recovered materials are extruded downward to the middle of the two crushing knife groups 3 by the two crushing knife groups 3, the recovered materials are extruded into the rotary knives 10 at the same time, and are cut and crushed by the protrusions on the rotary knives 10.

[0034] Further, the rotary knives 10 and the spacer sleeves 11 on each crushing main shaft 8 are arranged alternately along the axial direction of the crushing main shaft 8, preferably, the inside of the spacer sleeve 11 is hexagonal, the spacer sleeve 11 is fixedly connected with the crushing main shaft 8, the spacer sleeve 11 is cylindrical in shape, the outer circular surface of the spacer sleeve 11 is matched with the outer peripheral surface of the rotary knife 10 in size, and the spacer sleeve 11 plays a role in crushing the recovered materials, the fixed knives 9 are uniformly distributed on the side wall of the crushing cavity 6, the fixed knives 9 are arranged alternately with the rotary knives 10, and the width of the fixed knife 9 is the same as the width of the spacer sleeve 11, so as to prevent the debris from falling down from the gap between the rotary knives 10 in the rotating process.

[0035] Further, the plurality of rotary knives 10 are uniformly distributed in a spiral structure on the crushing spindle 8, the center of the rotary knife 10 is a hexagonal hole, the middle of the crushing spindle 8 is hexagonal, the rotary knife 10 is fixedly connected with the crushing spindle 8 through the hexagonal hole, the outer peripheral surface of the rotary knife 10 is formed with a blade part 20 with a valley part 19 and a top part integrated at a predetermined interval, the blade parts 20 are clamped with annular grooves 21, the annular grooves 21 of adjacent rotary knives 10 are connected through to form a place for powder dust to retreat, so as to prevent the problem of powder dust blockage, the blade parts 20 of the rotary knife 10 are arranged in a straight line direction to form a row of knife shape with a protruding part, which is used for cutting large volume debris. In this way, even if small crushing dust falls into the annular groove 21 of the rotary knife during the crushing process, these small crushing dust can be reliably buried in the annular groove 21 formed at a position deeper than the outer peripheral surface of the cylindrical body of the rotary knife 10, and the powder dust moves along the annular groove 21 in a curve while the rotary knife 10 rotates in the crushing cavity 6, until it reaches directly below the rotary knife 10 below, effectively alleviating the problem that the traditional fixed crushing space is easy to block the crusher.

[0036] Further, a semicircular filter screen 22 is also fixedly connected in the crushing cavity 6, as an optimization, the filter screen 22 is arranged directly below the rotary knife 10, the upper surface of the filter screen 22 and the diameter of the outer peripheral surface of the rotary knife 10 match each other, which is used to extrude and remove the adhesion of the crushing powder on the rotary knife 10, a plurality of semicircular supporting plates are arranged below the filter screen 22, which are used to support and fix the filter screen 22, the lower part of the supporting plate is fixed on the bottom surface of the crushing cavity 6, a plurality of uniformly distributed through holes are arranged on the filter screen 22, the diameter of the through hole is set according to the diameter of the crushed copper aluminum particles, the particles with a diameter larger than the diameter of the through hole cannot pass through the through hole, so that the particles are further crushed by the rotary knife 10 in the crushing cavity 6, until the diameter of the particles is smaller than the through hole, and then the particles can be discharged from the crushing cavity 6.

[0037] Further, the fixed knife 9 is provided with a circular arc notch, the radius of the circular arc matches the outer diameter of the spacer sleeve 11, a plurality of fixed knives 9 are arranged in a straight line, the upper part of the fixed knife is provided with a protruding part, a plurality of grooves for fixing the protruding part of the fixed knife 9 are arranged on the side surface of the crushing box body 2. A plurality of blade parts 20 are constructed as rotary knives with a spiral structure in which the valley parts are arranged in a straight line direction on the same shaft, since any blade part 20 and other blade parts 20 arranged adjacent to it engage with each other with a time difference relative to the fixed knife 9, the so-called oblique cutting of the crushed material from one end to the other end can be carried out, the torque on the rotary knife 10 can be reduced, and the energy consumption of the equipment is reduced.

[0038] Finally, it should be noted that: the above only for the preferred embodiments of the present application, and is not intended to limit the present application, although the foregoing embodiments of the present application have been described in detail, for the skilled in the art, it still can be modified, or for the equivalent replacement of part of the technical features of the technical solutions recorded in the foregoing embodiments. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application, shall be included within the scope of the present application.

Claims

1. A shredder for lithium battery recycling, characterized by, The utility model relates to a lithium battery recycling device, including frame (1), install on the frame (1) on the pulverization box main part (2), rotatable setting in the pulverization box main part (2) cross place two pulverization knife groups (3) and set up in the drive assembly (4) of pulverization box main part (2) one side, the pulverization box main part (2) top is equipped with for containing lithium battery recycling material's feed hopper (5), the pulverization box main part (2) inside forms pulverization chamber (6) and transmission chamber (7), two the pulverization knife group (3) is set up in the pulverization chamber (6) inside, the pulverization knife group (3) includes pulverization main shaft (8), fixed on the pulverization chamber (6) side wall on a plurality of fixed knife (9), a plurality of rotating knives (10) are set on the pulverization main shaft (8) and a plurality of for separating the rotating knife (10) of spacer sleeve (11), the pulverization box main part (2) bottom is linked with the discharge hopper (12), the frame (1) still is fixedly connected with control box (13).

2. The shredder for recycling lithium batteries according to claim 1, characterized by, The drive assembly (4) includes a reduction motor (14) fixed on the frame (1), a shaft coupling (15) fixedly connected with the output end of the reduction motor (14), a first gear (16) coaxially arranged with the shaft coupling (15), a second gear (17) engaged with the first gear (16), the first gear (16) and the second gear (17) are respectively sleeved on two pulverization main shafts (8), the first gear (16) and the second gear (17) are arranged in parallel in the transmission chamber (7), a plurality of bearing seats (18) are arranged in parallel on the side wall of the pulverization box main part (2), and the pulverization main shafts (8) are pivotally connected to the bearing seats (18) through bearings.

3. The shredder for recycling lithium batteries according to claim 1, characterized by, The two pulverization knife groups (3) are arranged in parallel, and the rotating knives (10) on the two pulverization knife groups (3) are arranged alternately along the axial direction of the pulverization main shaft (8) to rotate and extrude the recycled materials into the rotating knives (10) while tearing the recycled materials.

4. The shredder for recycling lithium batteries according to claim 1, characterized by, The rotating knives (10) and the spacer sleeves (11) are alternately arranged along the axial direction of the pulverization main shaft (8), the fixed knives (9) are uniformly distributed on the side wall of the pulverization chamber (6), and the fixed knives (9) and the rotating knives (10) are alternately arranged along the axial direction of the pulverization main shaft (8).

5. The shredder for recycling lithium batteries according to claim 1, wherein A plurality of rotating knives (10) are uniformly distributed on the pulverization main shaft (8) in a spiral structure, the center of the rotating knife (10) is a hexagonal hole, a blade part (20) with a valley part (19) and a top part is formed on the outer circumferential surface of the rotating knife (10) at a predetermined interval, the blade parts (20) are clamped with annular grooves (21) therebetween, the annular grooves (21) of adjacent rotating knives (10) are connected to form a place for powder retreat, and the blade parts (20) are arranged in a straight line direction to form a fixed knife shape with a protruding part.

6. The shredder for recycling lithium batteries according to claim 1, wherein A semicircular filter screen (22) is further fixedly connected in the pulverization chamber (6), the filter screen (22) is arranged below the rotating knives (10), and a plurality of uniformly distributed through holes are formed on the filter screen (22).

7. The shredder for recycling lithium batteries according to claim 1, characterized by The fixed blade (9) has an arc-shaped notch, the radius of which matches the outer diameter of the spacer (11), and the plurality of fixed blades (9) are arranged in a straight line.

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