A waste lithium iron phosphate battery recycling and processing equipment

Abstract

The present invention discloses a waste lithium iron phosphate battery recycling and processing equipment, including a cabinet, a conveying assembly and a stripping assembly, wherein a feed trough is obliquely arranged on the top of the cabinet, the conveying assembly is located at the outlet of the feed trough, the conveying assembly includes an electric push rod and a clamping block, which is used to convey the battery entering from the feed trough to the position where the stripping assembly is located; the stripping assembly includes a mounting frame arranged on one side of the conveying assembly, and a blade for cutting the plastic film on the surface of the battery is arranged on the mounting frame. Compared with the prior art, the present application can first strip the plastic film of the battery to be recycled and then crush the battery, which is conducive to the subsequent extraction and separation of precious metal materials in the battery and improves the recycling efficiency.

Description

Technical Field

[0001] The invention relates to the technical field of battery recycling, in particular to a waste lithium iron phosphate battery recycling and processing device. Background Art

[0002] In the current field of battery recycling technology, a commonly used strategy is to directly mechanically crush used batteries. Although this method is highly efficient, in actual operation, it is inevitable that the plastic film tightly wrapped around the outside of the battery will be directly mixed into the crushed mixture. As a key component of the battery structure, the unique physical and chemical properties of the plastic film make it difficult to achieve efficient separation through conventional means in the subsequent classification and recycling process. This situation not only increases the complexity of the recycling process, but also has an adverse impact on improving the purity and reuse efficiency of recycled materials.

[0003] In order to solve the problems of the prior art, the present application provides a waste lithium iron phosphate battery recycling and processing equipment. Summary of the invention

[0004] In view of the problem in the prior art that when waste batteries are crushed, plastic films are mixed in the battery crushed materials, affecting the subsequent recycling efficiency, the present invention proposes a waste lithium iron phosphate battery recycling and processing equipment.

[0005] The technical solution of the present invention is to provide a waste lithium iron phosphate battery recycling and processing equipment, including a cabinet, a conveying assembly and a stripping assembly, wherein a feed trough is obliquely arranged on the top of the cabinet, the conveying assembly is located at the outlet of the feed trough, and the conveying assembly includes an electric push rod and a clamping block, which is used to convey the battery entering from the feed trough to the position where the stripping assembly is located;

[0006] The stripping assembly comprises a mounting frame arranged at one side of the conveying assembly, a blade for cutting the plastic film on the surface of the battery is arranged on the mounting frame, a wedge block is arranged on the side of the blade away from the conveying assembly, the wedge block is connected to the bottom of the mounting frame through a metal spring, a first air jet for blowing open the plastic film is arranged between the wedge block and the blade, and a second air jet is slidably installed on the top of the mounting frame;

[0007] A support block is also provided below the mounting frame, and the support block is located on the side of the wedge-shaped block away from the first air jet port. An interference bar is provided on each side of the support block, and the two interference bars intersect and are connected to the wedge-shaped block. When the transport assembly transports the battery to the support block, the two interference bars are in contact with the upper surface of the battery.

[0008] Furthermore, a baffle is provided on the edge of the top of the cabinet facing the feed trough, the electric push rod and the clamping block are located between the baffle and the feed trough, and a movable frame is provided on the side of the baffle facing away from the clamping block, one end of the movable frame is connected to the clamping block, and the other end is movably connected to the baffle through a first spring.

[0009] Furthermore, a stop block is movably provided on the electric push rod, and the stop block is movably connected to the baffle through a second spring. When the second spring is in a normal state without force, the stop block is located at the outlet position of the feed trough.

[0010] Furthermore, the top of the cabinet is provided with an opening located between the baffle and the feed trough, and a partition connected to the cylinder is provided on the opening, and the partition blocks or exposes the opening as the cylinder moves.

[0011] Furthermore, a plurality of crushing rollers are arranged inside the cabinet, and the batteries are crushed by the crushing rollers when they enter the cabinet from the opening.

[0012] Furthermore, an electric roller is arranged directly below the blade, and the electric roller and the support block are in the same plane.

[0013] Furthermore, the stripping assembly also includes a guide frame arranged below the mounting frame, a side plate is arranged on the top of the guide frame, and the side plate is arranged higher than the supporting block.

[0014] Furthermore, a material receiving box is provided on one side of the cabinet body close to the stripping assembly. The material receiving box is communicated with the guide frame and is used for collecting the stripped plastic film.

[0015] Furthermore, an air pump connected to the first air jet port and the second air jet port is provided on the side of the cabinet.

[0016] Compared with the prior art, the present application can first peel off the plastic film of the battery to be recycled and then crush the battery, which is beneficial to the subsequent extraction and separation of precious metal materials in the battery and improves the recycling efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0018] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0019] Figure 2 for Figure 1 A local enlarged schematic diagram of point A;

[0020] Figure 3 It is a schematic diagram of the structure of the stripping assembly of the present invention;

[0021] Figure 4 for Figure 3 A local enlarged schematic diagram of point B;

[0022] Figure 5 This is a schematic diagram of the partition structure of the present invention;

[0023] Figure 6 This is a schematic diagram of the structure of the handling assembly of the present invention;

[0024] Figure 7 This is a schematic diagram of the structure of the electric push rod and the stop block of the present invention;

[0025] Figure 8 It is a schematic diagram of the structure of the crushing roller of the present invention.

[0026] Among them, the cabinet 1; the feed trough 11; the baffle 12; the partition 13; the material receiving box 14; the air pump 15; the crushing roller 16; the conveying component 2; the electric push rod 21; the clamping block 22; the movable frame 23; the first spring 24; the stop block 25; the second spring 26; the stripping component 3; the mounting frame 31; the blade 32; the wedge block 33; the first jet port 34; the second jet port 35; the support block 36; the interference strip 37; the electric roller 38; and the guide frame 39. DETAILED DESCRIPTION

[0027] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0028] Thus, a feature indicated in this specification will be used to illustrate one of the features of an embodiment of the present invention, rather than implying that each embodiment of the present invention must have the described feature. In addition, it should be noted that this specification describes many features. Although some features can be combined together to illustrate possible system designs, these features can also be used in other combinations that are not explicitly described. Thus, unless otherwise stated, the described combinations are not intended to be limiting.

[0029] In the description of the present application, the terms “first” and “second” are used for descriptive purposes only and should not be understood as indicating or implying relative importance.

[0030] In the description of the present application, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0031] The principle and structure of the present invention are described in detail below with reference to the accompanying drawings and embodiments.

[0032] A waste lithium iron phosphate battery recycling and processing equipment includes a cabinet 1, a conveying component 2 and a stripping component 3. A feed trough 11 is inclinedly arranged on the top of the cabinet 1. The conveying component 2 is located at the outlet of the feed trough 11. The conveying component 2 includes an electric push rod 21 and a clamping block 22, which are used to convey the battery entering from the feed trough 11 to the position of the stripping component 3.

[0033] The stripping assembly 3 includes a mounting frame 31 arranged on one side of the conveying assembly 2, and a blade 32 for cutting the plastic film on the surface of the battery is arranged on the mounting frame 31. A wedge block 33 is arranged on the side of the blade 32 away from the conveying assembly 2. The wedge block 33 is connected to the bottom of the mounting frame 31 through a metal spring sheet, and a first air jet 34 for blowing open the plastic film is arranged between the wedge block 33 and the blade 32. A second air jet 35 is also slidably installed on the top of the mounting frame 31.

[0034] A support block 36 is also provided below the mounting frame 31. The support block 36 is located on the side of the wedge block 33 away from the first jet port 34. An interference bar 37 is provided on both sides of the support block 36, and the two interference bars 37 intersect and connect to the wedge block 33. When the transport assembly 2 transports the battery to the support block 36, the two interference bars 37 contact the upper surface of the battery.

[0035] Furthermore, a baffle 12 is provided on the edge of the top of the cabinet 1 facing the feed trough 11, and the electric push rod 21 and the clamping block 22 are located between the baffle 12 and the feed trough 11. A movable frame 23 is provided on the side of the baffle 12 facing away from the clamping block 22. One end of the movable frame 23 is connected to the clamping block 22, and the other end is movably connected to the baffle 12 through a first spring 24.

[0036] Furthermore, a stop block 25 is provided on the electric push rod 21 , and the stop block 25 is movably connected to the baffle 12 via a second spring 26 . When the second spring 26 is in a normal state, the stop block 25 is located at the outlet of the feed trough 11 .

[0037] Furthermore, an opening is provided on the top of the cabinet 1 between the baffle 12 and the feed trough 11, and a partition 13 connected to the cylinder is provided on the opening. The partition 13 blocks or exposes the opening as the cylinder moves.

[0038] Furthermore, a plurality of crushing rollers 16 are disposed inside the cabinet 1 , and the batteries are crushed by the crushing rollers 16 when entering the cabinet 1 from the opening.

[0039] Furthermore, an electric roller 38 is disposed directly below the blade 32 , and the electric roller 38 and the support block 36 are in the same plane.

[0040] In a specific embodiment, Figures 1 to 8 The position shown, the waste lithium iron phosphate battery recycling and processing equipment proposed in this application is mainly used in the field of battery recycling. The existing technology directly crushes the waste lithium iron phosphate batteries, so that the plastic film covering the surface of the battery will also be directly mixed in the crushed material, which is not conducive to the subsequent classification and recycling. The present application can first peel off the plastic film of the battery to be recycled and then crush it, which is conducive to the subsequent extraction and separation of precious metal materials in the battery and improves the recycling efficiency. Among them, a feed trough 11 is provided on the top of the cabinet 1. When the battery to be recycled is put into the top of the feed trough 11, due to the inclined setting of the feed trough 11, the rear side of the feed trough 11 is higher than the front side, and the battery will roll to the front side of the top of the cabinet 1. In addition, the width of the feed trough 11 matches the size of the battery, and a guide line is provided on the inner wall of the feed trough 11. This design enables the battery to slide smoothly from the top of the feed trough 11 to the outlet at the bottom. A baffle 12 is also provided on the front side of the top of the cabinet 1 . When the battery rolls down from the feed chute 11 , the baffle 12 allows the battery to fall only between the electric push rod 21 and the clamping block 22 , thereby preventing the battery from falling out of the cabinet 1 .

[0041] Here, a first spring 24 is provided at the left end of the outer side of the baffle 12, and the first spring 24 is connected to the left end of the movable frame 23, and the right end of the movable frame 23 is connected to the clamping block 22, and the clamping block 22 is located on the inner side of the baffle 12. When the first spring 24 is in a normal state, the clamping block 22 is flush with the right end of the baffle 12, and the electric push rod 21 is pushed to the right to clamp the battery together with the clamping block 22. When the electric push rod 21 continues to move to the right, the first spring 24 gradually enters a stretched state, and the movable frame 23 and the clamping block 22 move to the right, thereby sending the battery to be recycled to the position of the stripping component 3.

[0042] like Figure 2 , Figure 6 and Figure 7As shown, a stopper 25 is sleeved on the electric push rod 21, and the stopper 25 is connected to the middle section of the baffle 12 through the second spring 26, and the stopper 25 can move left and right on the electric push rod 21. Specifically, the middle section of the baffle 12 is located at the outlet of the feed trough 11, and when the second spring 26 is not affected by external force and is in a normal state, the stopper 25 is located at the outlet of the feed trough 11, blocking the batteries in the feed trough 11. The end of the electric push rod 21 that contacts the battery is provided with a circular gasket. When the electric push rod 21 has not moved yet, the circular gasket on the electric push rod 21 abuts against the stop block 25. At this time, the second spring 26 is in a stretched state due to the action of the electric push rod 21, and the stop block 25 is on the left side of the feed trough 11 and does not block the outlet of the feed trough 11. When the battery needs to be transported to the stripping assembly 3, the electric push rod 21 moves to the right, and the second spring 26 gradually recovers from the stretched state to the normal state. The stop block 25 moves to the right to the outlet of the feed trough 11 due to the rebound force of the second spring 26, and cooperates with the circular gasket on the electric push rod 21 to block the outlet of the feed trough 11, thereby preventing the batteries in the feed trough 11 from continuing to fall and causing the electric push rod 21 to get stuck, thereby ensuring the stability of operation.

[0043] It should be noted that a stripping assembly 3 is provided on the top right side of the cabinet 1, including a mounting frame 31, and a blade 32 is provided on the left side of the mounting frame 31. When the electric push rod 21 and the clamping block 22 drive the battery to move to the right, the blade 32 just contacts the surface of the battery, thereby cutting the plastic film on the surface of the battery. The blade 32 is detachably mounted on the mounting frame 31 to facilitate subsequent replacement. On the right side of the blade 32, a wedge block 33 is also provided at the bottom of the mounting frame 31. The wedge block 33 is connected to the mounting frame 31 by a metal shrapnel. During the movement of the battery to the right, the wedge block 33 will be affected by the metal shrapnel to provide a downward force, and because the surface of the wedge block 33 in contact with the battery is an inclined surface, the plastic film cut on the surface of the battery can be shoveled away by the wedge block 33, thereby achieving preliminary separation. A first air jet 34 is also provided between the wedge block 33 and the blade 32, and the blade 32 is used to spray air while cutting the plastic film on the surface of the battery, so as to blow the plastic film away from the battery.

[0044] Here, a support block 36 is arranged at the lower right side of the mounting frame 31, and an interference bar 37 is arranged on the front and rear sides of the lower half of the support block 36, respectively. The left ends of the two interference bars 37 intersect with each other and are connected to the right end of the wedge block 33. When the battery is clamped by the clamp block 22 and the electric push rod 21 and moves to the right, the bottom end of the battery contacts the upper surface of the support block 36, and is tightly fitted with the wedge block 33 and the support block 36 at the same time by the downward force of the metal spring, playing a positioning role. In addition, the interference bars 37 arranged on both sides of the support block 36 are made of rubber material with excellent friction performance and have good deformation ability. When the battery moves between the two interference bars 37, the battery pushes the two interference bars 37 apart, and the two interference bars 37 are deformed. Subsequently, the interference strips 37 utilize the characteristics of rubber rebound after deformation to make the two sides of the battery in close contact with the two interference strips 37. Since the battery plastic film itself is not firmly bonded to the battery shell, the plastic film cut by the blade 32 can be stably separated from the battery under the friction provided by the interference strips 37. A slide rail is also provided above the mounting frame 31, and an electric slider that can slide left and right is provided on the slide rail. The electric slider is provided with a second air jet 35, and the second air jet 35 sprays air downwards while the electric slider moves left and right. This design can prevent the plastic film from being adhered to the interference strips 37 after being separated.

[0045] In addition, an opening is provided between the baffle 12 and the feed chute 11, and a partition 13 connected to the cylinder is provided on the opening. When the plastic film on the battery is peeled off, the electric push rod 21 and the clamping block 22 drive the battery to move to the left. A group of electric rollers 38 are also provided directly below the blade 32. The contact surface between the electric rollers 38 and the battery is made of rubber. When the battery moves to the left, the electric rollers 38 rotate to prevent the plastic film from being stuck at the left end of the battery and not being completely separated. When the battery with the plastic film separated returns to the position between the feed chute 11 and the baffle 12, the cylinder starts to drive the partition 13 to move, exposing the opening. The electric push rod 21 continues to move to the left for a distance, and the battery falls from the opening to the inside of the cabinet 1. Then the cylinder resets, so that the partition 13 blocks the opening again, and the electric push rod 21 resets to separate the plastic film of the next battery. There are multiple crushing rollers 16 inside the cabinet 1, and the battery falls from the opening to the crushing rollers 16 for crushing.

[0046] Furthermore, the stripping assembly 3 further includes a guide frame 39 disposed below the mounting frame 31 , and a side plate is disposed on the top of the guide frame 39 , and the side plate is disposed higher than the supporting block 36 .

[0047] Furthermore, a material receiving box 14 is provided on one side of the cabinet 1 close to the stripping assembly 3 . The material receiving box 14 is connected to the guide frame 39 and is used to collect the stripped plastic film.

[0048] Furthermore, an air pump 15 connected to the first air jet port 34 and the second air jet port 35 is disposed on the side of the cabinet 1 .

[0049] In a specific embodiment, Figure 1 In the position shown, on the right side of the cabinet 1, below the mounting frame 31, a guide frame 39 is also provided. The guide frame 39 is a rectangular parallelepiped with upper and lower openings. Side panels are provided on the front and rear sides of the top of the guide frame 39. The side panels are provided higher than the support block 36. This arrangement allows the plastic film to be restricted by the guide frame 39 when the battery is transported to the support block 36 for stripping of the plastic film. The plastic film will not be blown out of the cabinet 1 by the airflow output by the first jet port 34 and the second jet port 35, but can only be blown downward into the receiving box 14 connected to the guide frame 39. When the plastic film in the receiving box 14 is full, the receiving box 14 can be drawn out of the cabinet 1 for cleaning. An air pump 15 is also provided on the side of the cabinet 1. The first jet port 34 and the second jet port 35 are connected to the air pump 15 through a vent pipe.

[0050] In summary, compared with the prior art, the present application can first peel off the plastic film of the battery to be recycled and then crush the battery, which is beneficial to the subsequent extraction and separation of precious metal materials in the battery and improves the recycling efficiency.

[0051] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A waste lithium iron phosphate battery recycling and processing equipment, characterized in that: The invention comprises a cabinet (1), a transport assembly (2) and a stripping assembly (3); a feed trough (11) is obliquely arranged on the top of the cabinet (1); the transport assembly (2) is located at the outlet of the feed trough (11); the transport assembly (2) comprises an electric push rod (21) and a clamping block (22) for transporting batteries entering from the feed trough (11) to the position where the stripping assembly (3) is located; The stripping assembly (3) comprises a mounting frame (31) arranged on one side of the conveying assembly (2); a blade (32) for cutting the plastic film on the surface of the battery is arranged on the mounting frame (31); a wedge block (33) is arranged on the side of the blade (32) away from the conveying assembly (2); the wedge block (33) is connected to the bottom of the mounting frame (31) through a metal spring; a first air jet (34) for blowing open the plastic film is arranged between the wedge block (33) and the blade (32); and a second air jet (35) is slidably mounted on the top of the mounting frame (31); A support block (36) is also provided below the mounting frame (31), a certain distance is provided between the blade (32) and the support block (36), the support block (36) is located on a side of the wedge block (33) away from the first air jet port (34), an interference bar (37) is provided on each side of the support block (36), and the two interference bars (37) intersect and connect to the wedge block (33), and when the transport component (2) transports the battery to the support block (36), the two interference bars (37) are in contact with the upper surface of the battery; The interference strips (37) are made of rubber material with excellent friction performance and have good deformation ability. When the battery moves between the two interference strips (37), the battery pushes the two interference strips (37) apart, and the two interference strips (37) are deformed. Subsequently, the interference strips (37) use the characteristics of rubber rebound after deformation to promote the two sides of the battery to be in close contact with the two interference strips (37). The plastic film cut by the blade (32) can be stably separated from the battery under the friction provided by the interference strips (37).

2. The waste lithium iron phosphate battery recycling and processing equipment according to claim 1 is characterized in that: A baffle (12) is also provided on the edge of the top of the cabinet (1) facing the feed trough (11); the electric push rod (21) and the clamping block (22) are located between the baffle (12) and the feed trough (11); a movable frame (23) is provided on the side of the baffle (12) facing away from the clamping block (22); one end of the movable frame (23) is connected to the clamping block (22), and the other end is movably connected to the baffle (12) via a first spring (24).

3. A waste lithium iron phosphate battery recycling and processing equipment according to claim 2, characterized in that: A stop block (25) is also movably provided on the electric push rod (21), and the stop block (25) is movably connected to the baffle (12) via a second spring (26); when the second spring (26) is in a normal state without being stressed, the stop block (25) is located at the outlet of the feed trough (11).

4. The waste lithium iron phosphate battery recycling and processing equipment according to claim 2 is characterized in that: The top of the cabinet (1) is provided with an opening located between the baffle (12) and the feed trough (11), and a partition (13) connected to the cylinder is provided on the opening, and the partition (13) blocks or exposes the opening as the cylinder moves.

5. A waste lithium iron phosphate battery recycling and processing equipment according to claim 4, characterized in that: A plurality of crushing rollers (16) are arranged inside the cabinet (1), and batteries enter the cabinet (1) through the opening and are crushed by the crushing rollers (16).

6. The waste lithium iron phosphate battery recycling and processing equipment according to claim 1 is characterized in that: An electric roller (38) is also provided directly below the blade (32), and the electric roller (38) and the support block (36) are located in the same plane.

7. The waste lithium iron phosphate battery recycling and processing equipment according to claim 1 is characterized in that: The stripping assembly (3) further comprises a guide frame (39) arranged below the mounting frame (31), and a side plate is arranged on the top of the guide frame (39), and the side plate is arranged higher than the supporting block (36).

8. The waste lithium iron phosphate battery recycling and processing equipment according to claim 7 is characterized in that: A material receiving box (14) is also provided on one side of the cabinet (1) close to the stripping assembly (3); the material receiving box (14) is connected to the guide frame (39) and is used to collect the stripped plastic film.

9. The waste lithium iron phosphate battery recycling and processing equipment according to claim 1, characterized in that: An air pump (15) connected to the first air jet port (34) and the second air jet port (35) is arranged on the side of the cabinet (1).

Images