Waste lithium battery positive electrode material recovery device

Abstract

The utility model discloses a waste lithium battery positive electrode material recovery device, which relates to the technical field of waste battery recovery, and adopts the technical scheme that the waste lithium battery positive electrode material recovery device comprises a rack, a crushing box and a crushing roller rotationally arranged in the crushing box, a screening box is arranged on the rack and below the crushing box, and a plurality of groups of screening plates are arranged in the screening box; each group of sieve plates comprises a bottom sieve plate fixed with the screening box and a top sieve plate in sliding connection with the screening box, each group of top sieve plates are in sliding contact with the bottom sieve plate through a plate surface, meshes of each group of top sieve plates correspond to meshes of the bottom sieve plate, and the screening box is provided with an adjusting mechanism for sliding the top sieve plates. After different types of waste lithium batteries are replaced, the size of the positive electrode material of the lithium battery is changed, and a worker can drive the top sieve plate to slide through the adjusting mechanism and adjust the coincidence degree of the meshes in the top sieve plate and the bottom sieve plate, so that the size of the screening holes is adjusted to adapt to the size of the current positive electrode material of the lithium battery, the adjustment is relatively convenient, and the working efficiency is improved. And the applicability of the device is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of waste battery recycling, in particular to a waste lithium battery positive electrode material recycling device. Background Art

[0002] Lithium batteries are widely used in electronic devices and new energy vehicles due to their ability to be repeatedly charged and discharged. However, the charge and discharge life of lithium batteries also has its limits. Once their life is exhausted, they become waste lithium batteries. The lithium cobalt oxide, lithium iron phosphate, lithium manganese oxide and other materials contained in the positive electrodes of waste lithium batteries can be recycled. Generally, this is done by crushing the lithium batteries and then screening out the positive electrodes for subsequent processing.

[0003] A Chinese utility model patent with announcement number CN219519119U discloses a device for crushing and screening raw materials of waste lithium batteries, including a crushing box and a screening box. The top of the crushing box is connected to a feed hopper, a crushing mechanism is arranged inside the crushing box, and a secondary crushing and cleaning mechanism is arranged inside the screening box. The first inclined screen plate, the second inclined screen plate and the third inclined screen plate are arranged in sequence from top to bottom inside the screening box. The secondary crushing and cleaning mechanism includes a main shaft, which is rotatably arranged inside the screening box. The utility model uses the first inclined screen plate, the second inclined screen plate and the third inclined screen plate to screen the crushed raw materials multiple times, and the secondary crushing and cleaning mechanism is arranged to drive the crushing block to cooperate with the crushing teeth to further squeeze and crush the raw materials.

[0004] The above-mentioned prior art solutions have the following defects: different types of lithium batteries have different sizes of positive electrode materials, and the screen of the above-mentioned device is difficult to replace and difficult to adapt to different types of lithium batteries, which has limitations. Utility Model Content

[0005] In view of the shortcomings of the prior art, the purpose of the utility model is to provide a waste lithium battery positive electrode material recovery device, which can quickly adjust the size of the sieve holes to quickly adapt to different types of lithium batteries and has good applicability.

[0006] The above technical purpose of the utility model is achieved through the following technical solutions: a waste lithium battery positive electrode material recovery device, including a frame, a crushing box, and a crushing roller rotatably arranged in the crushing box, a screening box is installed on the frame below the crushing box, the screening box is connected to the frame through a spring, a vibration motor is fixed to the screening box, a plurality of groups of screen plates are arranged in the screening box, each group of screen plates includes a bottom screen plate fixed to the screening box, and a top screen plate slidably connected to the screening box, each group of the top screen plates is in sliding contact with the bottom screen plates through the plate surface, the mesh holes of each group of the top screen plates and the bottom screen plates correspond to each other, and the screening box is provided with an adjustment mechanism for sliding the top screen plates.

[0007] By adopting the above technical solution, when different types of waste lithium batteries are replaced, the size of the positive electrode material of the lithium battery changes. Personnel can drive the top sieve plate to slide through the adjustment mechanism to adjust the overlap degree of the mesh holes on the top sieve plate and the bottom sieve plate, thereby adjusting the size of the screening holes to adapt to the size of the current lithium battery positive electrode material.

[0008] Optionally, the adjustment mechanism includes a connecting block and an adjusting bolt, wherein the connecting block is fixedly connected to the top screen plate, the adjusting bolt is rotatably connected to the screening box, and the adjusting bolt is threadedly connected to the connecting block.

[0009] By adopting the above technical solution, the top screen plate can be driven to move through the threaded connection by rotating the adjusting bolt.

[0010] Optionally, a circular block is fixed on the outer wall of the adjusting bolt, a rotating groove for the circular block to rotate is opened on the outer side wall of the screening box, a pressure plate is fixed in the rotating groove, the pressure plate abuts against the circular block and restricts the circular block from leaving the rotating groove.

[0011] By adopting the above technical solution and arranging the circular block, a reliable rotation connection is established between the adjusting bolt and the screening box; by arranging the rotation groove and the pressure plate, the installation of the circular block is facilitated.

[0012] Optionally, slide grooves are provided on both sides of the inner wall of the screening box, and the top screen plate is slidably connected to the slide grooves through the two side walls.

[0013] By adopting the above technical solution, the screening box is provided with a slide groove for sliding connection of the top screen plate.

[0014] Optionally, the adjusting bolt is an external hexagonal bolt, the screening box is slidably connected with a locking block, the locking block is provided with a locking groove on a side facing the adjusting bolt, and the shape of the locking groove corresponds to the screw head of the adjusting bolt.

[0015] By adopting the above technical solution, when the adjusting bolt is rotated to a specific angle, the locking block can just slide the screw head of the adjusting bolt into the locking groove, thereby limiting the rotation of the adjusting bolt and achieving an anti-loosening effect.

[0016] Optionally, a T-block is fixed to one side of the locking block facing the screening box, a T-slot for sliding the T-block is provided on the outer wall of the screening box, the sliding direction of the locking block is along the vertical direction, and the locking block is located above the corresponding adjusting bolt.

[0017] By adopting the above technical solution, the locking block is arranged above the corresponding adjusting bolt. Then, when the locking block is sleeved outside the screw head of the adjusting bolt, the locking block will not spontaneously separate from the adjusting bolt under the action of gravity, thereby having a better anti-loosening effect on the adjusting bolt.

[0018] Optionally, springs are fixed to the top and bottom of the screening box, and the other end of the spring is fixed to the frame.

[0019] By adopting the above technical solution, springs are fixed to the top and bottom of the screening box, so that the connection between the screening box and the frame is more stable, and multiple springs can play a supporting and rebounding effect.

[0020] Optionally, each group of sieve plates is arranged obliquely, and one end of the sieve plates away from the adjustment mechanism is inclined downward.

[0021] By adopting the above technical solution, the inclined screen plate can slowly move the material downward while vibrating, so that the screened material leaves the lower end of the screen plate.

[0022] In summary, the beneficial effects of the present invention compared with the prior art are as follows:

[0023] 1. When replacing different types of waste lithium batteries, the size of the positive electrode material of the lithium battery changes. The personnel can drive the top screen plate to slide through the adjustment mechanism to adjust the overlap between the top screen plate and the mesh holes on the bottom screen plate, thereby adjusting the size of the screening holes to adapt to the size of the current lithium battery positive electrode material. The adjustment is more convenient, which improves the applicability of the device;

[0024] 2. The locking block can limit the rotation of the adjusting bolt by sliding, which has a good anti-loosening effect on the adjusting bolt and can adapt to the working scene where the screening box is constantly vibrating. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 A cross-sectional view of a waste lithium battery positive electrode material recovery device according to an embodiment;

[0026] Figure 2 for Figure 1 A magnified image of point A;

[0027] Figure 3 It is a partial view of the screening box of the embodiment.

[0028] In the figure, 1, frame; 2, crushing box; 21, crushing roller; 3, screening box; 11, spring; 30, vibration motor; 31, bottom screen plate; 32, top screen plate; 33, slide; 4, adjustment mechanism; 41, connecting block; 42, adjusting bolt; 43, round block; 34, rotating groove; 35, pressure plate; 5, locking block; 51, locking groove; 52, T-block; 36, T-slot. DETAILED DESCRIPTION

[0029] The following is combined with Figure 1-3 The utility model is described in further detail.

[0030] Reference Figure 1, a waste lithium battery positive electrode material recovery device disclosed in the utility model, includes a frame 1, a crushing box 2, a crushing roller 21 rotatably arranged in the crushing box 2, and a screening box 3 is installed on the frame 1 below the crushing box 2. The crushing box 2 is fixed to the top of the frame 1, and a pair of crushing rollers 21 are arranged on the upper and lower sides, and the crushing rollers 21 are driven to rotate by a motor.

[0031] The screening box 3 is connected to the frame 1 through the spring 11. The top and bottom of the screening box 3 are fixed with the spring 11, and the other end of the spring 11 is fixed to the frame 1. A vibration motor 30 is fixed to the bottom surface of the screening box 3. By starting the vibration motor 30, the screening box 3 can be driven to vibrate as a whole. The setting of the spring 11 enables the screening box 3 to vibrate relative to the frame 1, ensuring that the vibration motor 30 can fully play its role. And through the elastic connection of the spring 11, the screening box 3 is not easy to transmit vibration to the frame 1 when vibrating.

[0032] A plurality of sieve plates are arranged in the screening box 3, each of which includes a bottom sieve plate 31 fixed to the screening box 3 and a top sieve plate 32 slidably connected to the screening box 3. The plurality of sieve plates are spaced apart from each other, and the mesh of each sieve plate decreases in sequence along the vertical downward direction, so that larger materials can be screened out at the top and smaller materials can be screened out at the bottom. The bottom sieve plate 31 and the top sieve plate 32 are both made of metal plates, which have high hardness and rigidity.

[0033] The top sieve plate 32 of each group is in sliding contact with the bottom sieve plate 31 through the plate surface, the mesh sizes of each group of top sieve plates 32 and bottom sieve plates 31 are consistent, and the meshes of each group of top sieve plates 32 and bottom sieve plates 31 correspond to each other. The mutual correspondence here means that the top sieve plate 32 can make its mesh holes completely aligned with the mesh holes of the bottom sieve plate 31 by sliding, and in this state has the largest screening hole size; as the top sieve plate 32 moves, the mesh holes of the top sieve plate 32 and the mesh holes of the bottom sieve plate 31 are gradually staggered, and the screening hole size of this group of sieve plates is gradually reduced, so as to facilitate personnel to adjust different screening hole sizes.

[0034] Reference Figure 2 and Figure 3 , chutes 33 are provided on both sides of the inner wall of the screening box 3, the top screen plate 32 is slidably connected to the chutes 33 through the two side walls, and the bottom screen plate 31 is directly welded to the bottom wall of the chutes 33. Each set of screen plates is tilted, and the end of the screen plate away from the adjustment mechanism 4 is tilted downward. Through the tilted screen plate, the material can be slowly moved downward while vibrating, so that the screened material leaves the lower end of the screen plate. The personnel can place a bucket or container on the ground at the lower end of the corresponding screen plate to collect the screened materials separately.

[0035] The screening box 3 is provided with an adjustment mechanism 4 for sliding the top screen plate 32. The adjustment mechanism 4 includes a connecting block 41 and an adjusting bolt 42. The connecting block 41 is fixedly connected to the top screen plate 32, the adjusting bolt 42 is rotatably connected to the screening box 3, and the adjusting bolt 42 is threadedly connected to the connecting block 41. By rotating the adjusting bolt 42, the top screen plate 32 can be driven to move through the threaded connection.

[0036] A circular block 43 is fixed to the outer wall of the adjusting bolt 42, and a rotating groove 34 for the circular block 43 to rotate is provided on the outer wall of the screening box 3. A pressing plate 35 is fixed in the rotating groove 34, and the pressing plate 35 abuts against the circular block 43 and restricts the circular block 43 from being separated from the rotating groove 34. By providing the circular block 43, a reliable rotating connection is established between the adjusting bolt 42 and the screening box 3, and the adjusting bolt 42 will not produce axial movement. By providing the rotating groove 34 and the pressing plate 35, the installation of the circular block 43 is facilitated. The fixing method of the pressing plate 35 and the rotating groove 34 can be welding or bolt fixing.

[0037] The adjusting bolt 42 is an external hexagonal bolt, and the screening box 3 is slidably connected with a locking block 5, and the number and position of the locking block 5 correspond to the adjusting bolt 42. The locking block 5 is provided with a locking groove 51 on one side facing the adjusting bolt 42, and the shape of the locking groove 51 corresponds to the screw head of the adjusting bolt 42. The structure of the locking block 5 with the locking groove 51 is similar to an open-end wrench. When the adjusting bolt 42 is rotated to a specific angle, the locking block 5 can just slide to make the screw head of the adjusting bolt 42 enter the locking groove 51, thereby limiting the rotation of the adjusting bolt 42.

[0038] A T-block 52 is fixed to the side of the locking block 5 facing the screening box 3. The outer wall of the screening box 3 is provided with a T-slot 36 for the T-block 52 to slide. The sliding direction of the locking block 5 is along the vertical direction, and the locking block 5 is located above the corresponding adjusting bolt 42. It should be noted that the sliding of the T-block 52 and the T-slot 36 is preset with sliding friction. When the T-block 52 slides upward, the T-block 52 can be maintained at this height position by static friction and will not slide down spontaneously. The locking block 5 is arranged above the corresponding adjusting bolt 42. When the locking block 5 is sleeved on the outside of the screw head of the adjusting bolt 42, the locking block 5 will not spontaneously detach from the adjusting bolt 42 under the action of gravity, which has a better anti-loosening effect on the adjusting bolt 42 and can adapt to the working scene where the screening box 3 is constantly vibrating.

[0039] The implementation principle of the waste lithium battery positive electrode material recovery device of the present application is as follows: after the personnel put the same type of waste lithium batteries into the top opening of the crushing box 2, the motor is started to drive the crushing roller 21 to rotate and crush the battery. After the battery is crushed, the components are separated and fall on the sieve plate of the screening box 3. By starting the vibration motor 30, the materials on each sieve plate are vibrated and screened. The screened materials leave from the lower end of the sieve plate, and the personnel place a material bucket or container on the ground at the lower end of the corresponding sieve plate, and the screened materials can be collected separately. According to the different mesh sizes of each group of sieve plates, one of the sieve plates can discharge the positive electrode material.

[0040] When replacing used lithium batteries of different types, the size of the positive electrode material of the lithium battery changes. The personnel can slide the locking block 5 upward to unlock the adjusting bolt 42, and then rotate the adjusting bolt 42, thereby driving the top sieve plate 32 to slide, and adjusting the overlap between the mesh holes on the top sieve plate 32 and the bottom sieve plate 31, so as to adjust the size of the screening holes to adapt to the size of the current positive electrode material of the lithium battery. After the adjustment is completed, the adjusting bolt 42 is locked again by sliding the locking block 5 downward.

[0041] The embodiments of this specific implementation method are all preferred embodiments of the utility model, and are not intended to limit the protection scope of the utility model. Therefore, all equivalent changes made based on the structure, shape, and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A waste lithium battery positive electrode material recovery device, comprising a frame (1), a crushing box (2), and a crushing roller (21) rotatably arranged in the crushing box (2), wherein: A screening box (3) is installed on the frame (1) below the crushing box (2), the screening box (3) is connected to the frame (1) via a spring (11), a vibration motor (30) is fixed to the screening box (3), a plurality of groups of screening plates are arranged in the screening box (3), each group of screening plates comprises a bottom screening plate (31) fixed to the screening box (3), and a top screening plate (32) slidably connected to the screening box (3), each group of the top screening plates (32) is in sliding contact with the bottom screening plates (31) via a plate surface, the meshes of each group of the top screening plates (32) and the bottom screening plates (31) correspond to each other, and the screening box (3) is provided with an adjustment mechanism (4) for sliding the top screening plates (32); The adjusting mechanism (4) comprises a connecting block (41) and an adjusting bolt (42); the connecting block (41) is fixedly connected to the top screen plate (32); the adjusting bolt (42) is rotatably connected to the screening box (3); and the adjusting bolt (42) is threadedly connected to the connecting block (41).

2. The device for recovering positive electrode materials of waste lithium batteries according to claim 1, characterized in that: A circular block (43) is fixed on the outer wall of the adjusting bolt (42), and a rotation groove (34) for the circular block (43) to rotate is provided on the outer wall of the screening box (3). A pressing plate (35) is fixed in the rotation groove (34), and the pressing plate (35) abuts against the circular block (43) and restricts the circular block (43) from leaving the rotation groove (34).

3. The device for recovering positive electrode materials of waste lithium batteries according to claim 1, characterized in that: Slide grooves (33) are provided on both sides of the inner wall of the screening box (3), and the top screen plate (32) is slidably connected to the slide grooves (33) through the two side walls.

4. The device for recovering positive electrode materials of waste lithium batteries according to claim 1, characterized in that: The adjusting bolt (42) is an external hexagonal bolt, and the screening box (3) is slidably connected with a locking block (5). The locking block (5) is provided with a locking groove (51) on one side facing the adjusting bolt (42), and the shape of the locking groove (51) corresponds to the screw head of the adjusting bolt (42).

5. The device for recovering positive electrode materials of waste lithium batteries according to claim 4 is characterized in that: A T-shaped block (52) is fixed to one side of the locking block (5) facing the screening box (3); an outer wall of the screening box (3) is provided with a T-shaped slot (36) for the T-shaped block (52) to slide; the sliding direction of the locking block (5) is along the vertical direction; and the locking block (5) is located above the corresponding adjusting bolt (42).

6. The device for recovering positive electrode materials of waste lithium batteries according to claim 1, characterized in that: A spring (11) is fixed to the top and bottom of the screening box (3), and the other end of the spring (11) is fixed to the frame (1).

7. The device for recovering positive electrode materials of waste lithium batteries according to claim 1, characterized in that: Each group of sieve plates is arranged obliquely, and one end of the sieve plates away from the adjustment mechanism (4) is inclined downward.

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