Waste lithium iron phosphate battery crushing all-in-one machine and screening method thereof

Abstract

The invention discloses a waste lithium iron phosphate battery crushing all-in-one machine and a screening method thereof, and belongs to the technical field of waste battery treatment.The waste lithium iron phosphate battery is poured into a crushing box from a feeding frame, and a crushing motor is started to control two sets of driven gears to rotate in the opposite directions; the two groups of crushing rollers extrude the waste lithium iron phosphate batteries for crushing, the crushed waste lithium iron phosphate batteries fall into a mounting frame, and meanwhile, a rotating motor is started to control a reciprocating screw rod to rotate under meshing of a bevel gear I and a bevel gear II, so that a moving seat reciprocates on the surface of the reciprocating screw rod; the scraping plate is driven to reciprocate at the top of the screening net, the situation that broken waste lithium iron phosphate battery particles block holes of the screening net, and consequently screening of the broken waste lithium iron phosphate batteries is affected is avoided, screening through a vibration screening frame is avoided, and the influence of vibration on the waste lithium iron phosphate battery crushing all-in-one machine is reduced.

Description

Technical Field

[0001] The present invention belongs to the technical field of waste battery treatment, and specifically relates to a waste lithium iron phosphate battery crushing integrated machine and a screening method thereof. Background Art

[0002] Waste lithium iron phosphate batteries may cause serious pollution to the environment if they are not handled properly, because they contain heavy metals, electrolytes and other substances. If these substances leak, they will cause long-term damage to the soil and water sources. Practical waste lithium iron phosphate battery crushing integrated machine is used to process waste lithium iron phosphate batteries. The battery electrodes are disassembled and crushed through physical and mechanical crushing technology to achieve separation and recycling of battery internal materials.

[0003] When the existing integrated crushing machine for used lithium iron phosphate batteries crushes and screens used lithium iron phosphate batteries, it generally uses a vibrating screening frame to ensure that the particles of the used lithium iron phosphate batteries do not clog the screening frame. Long-term vibration can easily accelerate the wear of the parts of the integrated crushing machine for used lithium iron phosphate batteries and reduce the accuracy and stability of the integrated crushing machine for used lithium iron phosphate batteries. Therefore, improvements are needed. Summary of the invention

[0004] In order to overcome the above-mentioned defects, the present invention provides a waste lithium iron phosphate battery crushing integrated machine and a screening method thereof, which solves the problem that when the existing waste lithium iron phosphate battery crushing integrated machine crushes and screens the waste lithium iron phosphate batteries, a vibrating screening frame is generally used to ensure that the waste lithium iron phosphate battery particles will not block the screening frame, and long-term vibration can easily accelerate the wear of the parts of the waste lithium iron phosphate battery crushing integrated machine, thereby reducing the accuracy and stability of the waste lithium iron phosphate battery crushing integrated machine.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a machine for crushing waste lithium iron phosphate batteries, comprising a fixed base, support bars are fixedly installed at the four corners of the top of the fixed base, and a crushing box is fixedly installed between the tops of the four groups of support bars, a feeding rack is fixedly installed on the top of the crushing box, a rotating motor is fixedly installed at the bottom center position of one side of the crushing box, and a bevel gear 1 is fixedly installed at the output end of the bottom of the rotating motor, a mounting frame is fixedly installed at the center position between the four groups of support bars at the bottom of the crushing box, and the mounting frame corresponds to the center position of the top of the fixed base, and a screening frame is slidably installed at the bottom of the mounting frame.

[0006] As a further solution of the present invention: a collecting box is slidably installed inside the fixed base, and rubber clips are symmetrically fixedly installed at one end of both sides of the collecting box, a plurality of mounting shafts are equidistantly fixedly installed on the bottom of the fixed base, and rollers are rollingly installed on the surface of the mounting shafts, and a rectangular groove is provided at the central position of the top of the fixed base.

[0007] As a further solution of the present invention: crushing rollers are symmetrically mounted for rotation between the two sides of the inner wall of the crushing box, and the surfaces of the two groups of crushing rollers are meshed with each other, one end of the crushing roller away from the rotating motor passes through the crushing box and is fixedly mounted with a driven gear, and the two groups of driven gears are meshed with each other, a crushing motor is fixedly mounted on the bottom of one side of the crushing box, and a driving gear is fixedly mounted on the output end of the crushing motor, and the driving gear is meshed with a group of driven gears.

[0008] As a further solution of the present invention: material discharge slopes are symmetrically arranged on both sides of the inner wall of the feed rack, and the bottom between the two groups of material discharge slopes corresponds to the central position where the two groups of crushing rollers are meshed.

[0009] As a further solution of the present invention: a reciprocating screw is rotatably installed on the inner wall of the mounting frame, and one end of the reciprocating screw passes through the mounting frame and is fixedly installed with a bevel gear 2, the bevel gear 2 is meshed with the bevel gear 1, a shield is fixedly installed between the surfaces of the inner wall of the mounting frame located at the top of the reciprocating screw, a movable seat is slidably installed on the surface of the reciprocating screw at the bottom of the shield, a mounting plate is symmetrically fixedly installed on the surface of the movable seat, two groups of clamping rods are symmetrically and slidably installed on the mounting plate, the top ends of the two groups of clamping rods pass through the mounting plate and are fixedly installed with connecting plates, and the bottom ends of the four groups of clamping rods pass through the mounting plate and are fixedly installed with clamping plates, a clamping spring is provided on the surface of the clamping rod between the mounting plate and the clamping plate, and three groups of scrapers are fixedly installed on the bottom of the clamping plate.

[0010] As a further solution of the present invention: L-shaped slots are symmetrically provided at the bottom of both sides of the mounting frame, and mounting grooves are symmetrically provided inside the two ends of the mounting frame on the side away from the second bevel gear, a fixed plug rod is slidably installed inside the mounting groove, and the bottom end of the fixed plug rod passes through the mounting groove and extends to the bottom of the mounting frame, and a limit plate is fixedly installed on the surface of the fixed plug rod at the bottom of the mounting groove, and a fixing spring is provided on the surface of the fixed plug rod located inside the mounting groove, and connecting strips are fixedly installed at the top ends of the two groups of fixed plug rods located inside the mounting groove through the mounting groove, and fixing bolts are symmetrically provided on both sides of the fixing spring, and the fixing bolts pass through the connecting strip to be connected to the mounting frame.

[0011] As a further solution of the present invention: L-shaped clips are symmetrically fixedly installed on both sides of the top of the screening frame, the L-shaped clips correspond to the positions of the L-shaped slots and have the same shape, a screening net is provided at the central position of the top of the screening frame, and fixed holes are symmetrically provided at one end of the two groups of L-shaped clips on the top of the screening frame, and the fixed holes correspond to the positions of the fixed rods.

[0012] A screening method for a waste lithium iron phosphate battery crushing integrated machine, the screening method comprising the following steps:

[0013] Select a suitable screening frame according to the screening needs, place the screening frame close to the bottom of the mounting frame, insert the L-shaped card strip into the corresponding L-shaped slots on both sides of the mounting frame, push the connecting strip upward to move the fixed plug rod upward and retract it into the mounting slot, push the screening frame to cover the bottom of the mounting frame until the fixed plug hole corresponds to the position of the fixed plug rod, loosen the connecting strip, and under the rebound action of the fixing spring, move the two sets of fixed plug rods downward to push out of the mounting slot and insert them into the corresponding fixed plug holes, then tighten the fixing bolts to fix the connecting strip on one side of the mounting frame, ensuring that the connecting strip will not cause the fixed plug rod to move arbitrarily and detach from the fixed plug hole;

[0014] Start the crushing motor to control the driving gear to drive the two sets of driven gears to rotate in the opposite direction, so that the two sets of crushing rollers are synchronously meshed and extruded and rotated, and a proper amount of waste lithium iron phosphate batteries are poured into the feeding rack. Under the guidance of the discharge slope, the waste lithium iron phosphate batteries fall into the meshing position between the two sets of crushing rollers, so that the two sets of crushing rollers extrude and crush the waste lithium iron phosphate batteries. At the same time, the rotating motor is controlled to drive the bevel gear 1 to rotate, and the rotation is transmitted to the reciprocating screw. The reciprocating screw is controlled to rotate so that the moving seat reciprocates on the surface of the reciprocating screw. Under the elastic action of the clamping spring, the clamping plate is pressed against the screening net, so that the scraper is close to the top of the screening net. The moving seat drives the scraper to reciprocate on the top of the screening net, pushing the waste lithium iron phosphate battery slag to move on the top of the screening net, and preventing the waste lithium iron phosphate battery slag from clogging the screening net;

[0015] The screened waste lithium iron phosphate battery debris falls from the rectangular groove into the collection box, thereby centrally processing the fine particles in the waste lithium iron phosphate batteries, and the remaining larger waste lithium iron phosphate battery particles are accumulated on the top of the screening net. After a certain period of crushing and screening, the connecting strip is pushed to drive the fixed plug rod to disengage from the fixed plug hole, and the screening frame is pulled out from the bottom of the mounting frame, thereby discharging the larger waste lithium iron phosphate battery particles accumulated inside the mounting frame.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. In the present invention, a rotating motor, a reciprocating screw, a moving seat, a pressing spring, a scraper and a screening net are arranged, and the screening frame is clamped and fixed on the bottom of the mounting frame. Under the rebound action of the pressing spring, the scraper is pressed against the top of the screening net, and the waste lithium iron phosphate batteries are poured from the feeding frame into the crushing box, and the crushing motor is started to control the two sets of driven gears to rotate in opposite directions, so that the two sets of crushing rollers squeeze the waste lithium iron phosphate batteries for crushing, and the crushed waste lithium iron phosphate batteries fall into the mounting frame. At the same time, the rotating motor is started to control the reciprocating screw to rotate under the meshing of bevel gear 1 and bevel gear 2, so that the moving seat reciprocates on the surface of the reciprocating screw, and drives the scraper to reciprocate on the top of the screening net, so as to avoid the broken waste lithium iron phosphate battery particles from clogging the holes of the screening net, thereby affecting the screening of the broken waste lithium iron phosphate batteries, avoiding the use of a vibrating screening frame for screening, and reducing the influence of vibration on the waste lithium iron phosphate battery crushing integrated machine.

[0018] 2. In the present invention, by setting a fixed plug rod, a fixed spring, a connecting strip, an L-shaped clip and a screening frame, loosen the fixing bolts, lift the connecting strip to drive the fixed plug rod to move up and retract into the corresponding mounting groove, and place the screening frame close to the bottom of the mounting frame, so that the L-shaped clip strip is inserted into the corresponding L-shaped slots on both sides of the mounting frame, and the screening frame is pushed close to the fixed plug rod until the position of the fixed plug hole corresponds to the position of the fixed plug rod. Then, loosen the connecting strip and press the limit plate down to the bottom of the mounting groove under the rebound action of the fixing spring, so that the fixed plug rod is pushed out of the mounting groove and inserted into the corresponding fixed plug hole. Tighten the fixing bolts, so that the screening frame is clamped and fixed to the bottom of the mounting frame, which is convenient for replacing a suitable screening frame according to screening needs. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of the present invention;

[0020] Figure 2 It is a cross-sectional structural schematic diagram of the fixed base and the collecting box of the present invention;

[0021] Figure 3 It is a schematic cross-sectional view of the crushing box and the feeding frame of the present invention;

[0022] Figure 4 It is a schematic cross-sectional view of the mounting frame and the reciprocating screw rod of the present invention;

[0023] Figure 5 For the present invention Figure 4 A schematic diagram of the enlarged structure at A in the middle;

[0024] Figure 6 For the present invention Figure 4 A schematic diagram of the enlarged structure at B in the middle;

[0025] Figure 7 It is a schematic diagram of the structure of the screening frame and the L-shaped clamping bar of the present invention;

[0026] In the figure: 1, fixed base; 101, collection box; 102, rubber clip; 103, installation shaft; 104, roller; 105, rectangular groove; 2, support bar; 3, crushing box; 301, crushing roller; 302, driven gear; 303, crushing motor; 304, driving gear; 4, feeding rack; 401, unloading slope; 5, rotating motor; 6, bevel gear 1; 7, mounting rack; 701, reciprocating screw; 702, bevel gear 2; 70 3. Protective cover; 704. Moving seat; 705. Mounting plate; 706. Clamping rod; 707. Connecting plate; 708. Clamping plate; 709. Clamping spring; 710. Scraper; 711. L-shaped slot; 712. Mounting slot; 713. Fixed plug rod; 714. Limiting plate; 715. Fixed spring; 716. Connecting strip; 717. Fixed bolt; 8. Screening frame; 801. L-shaped card strip; 802. Fixed socket; 803. Screening net. DETAILED DESCRIPTION

[0027] The technical solution of the present application is further described in detail below in conjunction with specific implementation methods.

[0028] like Figure 1-7 As shown, the present invention provides a technical solution: a waste lithium iron phosphate battery crushing integrated machine, comprising a fixed base 1, a collection box 101 is slidably installed inside the fixed base 1, and rubber clamping strips 102 are symmetrically fixedly installed at one end of both sides of the collection box 101, and after the collection box 101 is inserted into the fixed base 1, the rubber clamping strips 102 are squeezed between the collection box 101 and the fixed base 1, so that the collection box 101 is clamped and fixed inside the fixed base 1;

[0029] A plurality of mounting shafts 103 are equidistantly fixedly installed at the bottom of the fixed base 1, and rollers 104 are rollingly installed on the surface of the mounting shafts 103. A rectangular groove 105 is provided at the central position of the top of the fixed base 1. Due to the roller 104, the collection box 101 is pushed to move inside the fixed base 1, and the roller 104 rolls at the bottom of the collection box 101, thereby reducing the friction of the collection box 101 when it moves inside the fixed base 1, making it convenient to insert the collection box 101 into the fixed base 1.

[0030] Support bars 2 are fixedly installed at the four corners of the top of the fixed base 1, and a crushing box 3 is fixedly installed between the tops of the four groups of support bars 2. Crushing rollers 301 are symmetrically installed between the two sides of the inner wall of the crushing box 3, and the surfaces of the two groups of crushing rollers 301 are meshed with each other. By providing the crushing rollers 301, the two groups of crushing rollers 301 are controlled to rotate synchronously to squeeze the waste lithium iron phosphate batteries, thereby crushing the waste lithium iron phosphate batteries;

[0031] One end of the crushing roller 301 away from the rotating motor 5 passes through the crushing box 3 and is fixedly installed with a driven gear 302, and the two groups of driven gears 302 are meshed with each other. A crushing motor 303 is fixedly installed at the bottom of one side of the crushing box 3, and a driving gear 304 is fixedly installed at the output end of the crushing motor 303. The driving gear 304 and a group of driven gears 302 are meshed with each other. Since the crushing motor 303 is provided, the crushing motor 303 is started to control the driving gear 304 to rotate, and under the meshing action of the driving gear 304 and the two groups of driven gears 302, the two groups of driven gears 302 rotate in the opposite direction.

[0032] A feed rack 4 is fixedly installed on the top of the crushing box 3. Discharge slopes 401 are symmetrically arranged on both sides of the inner wall of the feed rack 4, and the bottom between the two groups of discharge slopes 401 corresponds to the central position where the two groups of crushing rollers 301 are meshed. Due to the discharge slope 401, the waste lithium iron phosphate batteries are poured into the feed rack 4, and under the guidance of the discharge slope 401, the waste lithium iron phosphate batteries fall into the meshing position between the two groups of crushing rollers 301 for extrusion and crushing.

[0033] A rotating motor 5 is fixedly installed at the bottom center position of one side of the crushing box 3, and a bevel gear 1 6 is fixedly installed at the output end of the bottom of the rotating motor 5. A mounting frame 7 is fixedly installed at the central position between the four groups of support bars 2 at the bottom of the crushing box 3, and the mounting frame 7 corresponds to the central position of the top of the fixed base 1. A reciprocating screw 701 is rotatably installed on the inner wall of the mounting frame 7, and one end of the reciprocating screw 701 passes through the mounting frame 7 and is fixedly installed with a bevel gear 2 702. The bevel gear 2 702 is meshed with the bevel gear 1 6. By providing the bevel gear 1 6 and the bevel gear 2 702, the rotation of the rotating motor 5 is transmitted to the reciprocating screw 701 through the meshing of the bevel gear 1 6 and the bevel gear 2 702, thereby controlling the reciprocating screw 701 to rotate;

[0034] A shield 703 is fixedly installed between the inner wall of the mounting frame 7 and the surface at the top of the reciprocating screw 701. Due to the shield 703, the waste lithium iron phosphate battery particles crushed by the crushing roller 301 are prevented from falling directly on the surface of the reciprocating screw 701 under the protection of the shield 703, thereby preventing the moving seat 704 from moving on the surface of the reciprocating screw 701.

[0035] The surface of the reciprocating screw 701 is located at the bottom of the shield 703 and is slidably mounted with a moving seat 704. The surface of the moving seat 704 is symmetrically fixed with a mounting plate 705. The mounting plate 705 is symmetrically slidably mounted with two sets of clamping rods 706. The top ends of the two sets of clamping rods 706 pass through the mounting plate 705 and are fixedly mounted with a connecting plate 707. The bottom ends of the four sets of clamping rods 706 pass through the mounting plate 705 and are fixedly mounted with a clamping plate 708. The clamping rods 706 are located between the mounting plate 705 and the clamping plate 708. A clamping spring 709 is provided on the surface, and three groups of scrapers 710 are fixedly installed at the bottom of the clamping plate 708. By providing the clamping spring 709, when the screening frame 8 is clamped and fixed to the bottom of the mounting frame 7, the screening net 803 is pressed against the bottom of the scraper 710, and the clamping plate 708 is pressed down close to the screening net 803 under the rebound action of the clamping spring 709, ensuring that when the moving seat 704 drives the scraper 710 to move on the top of the screening net 803, the scraper 710 can be pressed against the top of the screening net 803.

[0036] L-shaped slots 711 are symmetrically provided at the bottom of both sides of the mounting frame 7, and mounting slots 712 are symmetrically provided inside the two ends of the side of the mounting frame 7 away from the bevel gear 2 702, and a fixed plug rod 713 is slidably installed inside the mounting slot 712, and the bottom end of the fixed plug rod 713 passes through the mounting slot 712 and extends to the bottom of the mounting frame 7, and a limit plate 714 is fixedly installed on the surface of the fixed plug rod 713 at the bottom of the mounting slot 712, and a fixing spring 715 is provided on the surface of the fixed plug rod 713 located inside the mounting slot 712. Because the fixing spring 715 is provided, the fixing plug rod 713 is pressed down and ejected from the mounting slot 712 under the rebound action of the fixing spring 715, so that the fixing plug rod 713 is inserted into the corresponding fixing hole 802, and the screening frame 8 is clamped and fixed;

[0037] Two sets of fixed insertion rods 713 are located at the top end inside the mounting groove 712, and a connecting strip 716 is fixedly installed through the mounting groove 712. Fixed bolts 717 are symmetrically provided on both sides of the fixed spring 715, and the fixing bolts 717 pass through the connecting strip 716 to be connected to the mounting frame 7. By providing the fixing bolts 717, tightening the fixing bolts 717 to pass through the connecting strip 716 and connect and fix it to the mounting frame 7, it is ensured that the connecting strip 716 will not move at will on the surface of the mounting frame 7.

[0038] The screening frame 8 is slidably mounted at the bottom of the mounting frame 7. L-shaped clamping strips 801 are symmetrically fixedly mounted on both sides of the top of the screening frame 8. The L-shaped clamping strips 801 correspond to the positions of the L-shaped slots 711 and have the same shape. Since the L-shaped slots 711 and the L-shaped clamping strips 801 are provided, the L-shaped clamping strips 801 on the top of the screening frame 8 are correspondingly inserted into the L-shaped slots 711 on both sides of the mounting frame 7, thereby limiting and fixing the screening frame 8, and ensuring that the screening frame 8 will not be misaligned when it is installed and fixed on both sides of the mounting frame 7;

[0039] A screening net 803 is provided at the central position of the top of the screening frame 8. Fixed sockets 802 are symmetrically provided at one end of the two groups of L-shaped clips 801 on the top of the screening frame 8, and the fixed sockets 802 correspond to the positions of the fixed plug rods 713. Since the screening net 803 is provided, a suitable screening net 803 can be selected according to different screening needs, thereby facilitating the screening of waste lithium iron phosphate battery debris of different particle sizes.

[0040] A screening method for a waste lithium iron phosphate battery crushing integrated machine, the screening method comprising the following steps:

[0041] When the cam 712 is in the closed position, the cam 713 is in the closed position, and the cam 714 is in the closed position, so that the cam 713 is in the closed position, and the cam 714 is in the closed position, so that the cam 713 is in the closed position, and the cam 714 is in the closed position, so that the cam 713 is in the closed position, and the cam 714 is in the closed position, so that the cam 713 is in the closed position, and the cam 714 is in the closed position, so that the cam 714 ...

[0042] Start the crushing motor 303 to control the driving gear 304 to drive the two sets of driven gears 302 to rotate in the opposite direction, so that the two sets of crushing rollers 301 are synchronously meshed and extruded and rotated, and a proper amount of waste lithium iron phosphate batteries are poured into the inside of the feeding rack 4. Under the guidance of the discharge slope 401, the waste lithium iron phosphate batteries fall into the meshing position between the two sets of crushing rollers 301, so that the two sets of crushing rollers 301 squeeze and crush the waste lithium iron phosphate batteries. At the same time, the rotating motor 5 is controlled to drive the bevel gear 6 to rotate, and the rotation is transmitted to the To the reciprocating screw 701, control the reciprocating screw 701 to rotate so that the moving seat 704 reciprocates on the surface of the reciprocating screw 701, and presses the pressing plate 708 to the screening net 803 under the elastic action of the pressing spring 709, so that the scraper 710 is close to the top of the screening net 803, and the moving seat 704 drives the scraper 710 to reciprocate on the top of the screening net 803, pushing the waste lithium iron phosphate battery slag to move on the top of the screening net 803, so as to prevent the waste lithium iron phosphate battery slag from clogging the screening net 803;

[0043] The screened waste lithium iron phosphate battery debris falls from the rectangular groove 105 into the collection box 101, so that the fine particles in the waste lithium iron phosphate batteries are concentratedly processed, and the remaining waste lithium iron phosphate battery particles with larger particles are accumulated on the top of the screening net 803. After a certain period of crushing and screening, the connecting strip 716 is pushed to drive the fixed plug rod 713 to disengage from the fixed plug hole 802, and the screening frame 8 is pulled away from the bottom of the mounting frame 7, so that the waste lithium iron phosphate battery particles with larger particles accumulated inside the mounting frame 7 are discharged.

[0044] In the description of the present invention, it is necessary to understand that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element 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 invention.

[0045] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0046] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or a communication; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0047] In the present invention, unless otherwise clearly specified and limited, the first feature "on" or "under" the second feature may be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. In the description of this specification, the description with reference to the terms "one scheme", "some schemes", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the scheme or example are included in at least one scheme or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same scheme or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more schemes or examples in a suitable manner.

Claims

1. A machine for crushing waste lithium iron phosphate batteries, comprising a fixed base (1), Features: Support bars (2) are fixedly mounted at the four corners of the top of the fixed base (1), and a crushing box (3) is fixedly mounted between the tops of the four groups of support bars (2). A feeding frame (4) is fixedly mounted on the top of the crushing box (3). A rotating motor (5) is fixedly mounted at the central position of the bottom of one side of the crushing box (3), and a bevel gear (6) is fixedly mounted at the output end of the bottom of the rotating motor (5). A mounting frame (7) is fixedly mounted at the central position between the four groups of support bars (2) at the bottom of the crushing box (3), and the mounting frame (7) corresponds to the central position of the top of the fixed base (1). A screening frame (8) is slidably mounted at the bottom of the mounting frame (7).

2. The integrated machine for crushing waste lithium iron phosphate batteries according to claim 1, Features: A collection box (101) is slidably mounted inside the fixed base (1), and rubber clips (102) are symmetrically fixedly mounted on one end of both sides of the collection box (101), a plurality of groups of mounting shafts (103) are equidistantly fixedly mounted on the bottom of the fixed base (1), and rollers (104) are rollably mounted on the surfaces of the mounting shafts (103), and a rectangular groove (105) is provided at the central position of the top of the fixed base (1).

3. The integrated machine for crushing waste lithium iron phosphate batteries according to claim 1, Features: Crushing rollers (301) are symmetrically mounted on both sides of the inner wall of the crushing box (3), and the surfaces of the two groups of crushing rollers (301) are meshed with each other. One end of the crushing roller (301) away from the rotating motor (5) passes through the crushing box (3) and is fixedly mounted with a driven gear (302), and the two groups of driven gears (302) are meshed with each other. A crushing motor (303) is fixedly mounted on the bottom of one side of the crushing box (3), and a driving gear (304) is fixedly mounted on the output end of the crushing motor (303), and the driving gear (304) is meshed with a group of driven gears (302).

4. The integrated machine for crushing waste lithium iron phosphate batteries according to claim 3, Features: Discharge slopes (401) are symmetrically arranged on both sides of the inner wall of the feed frame (4), and the bottom between the two groups of discharge slopes (401) corresponds to the central position where the two groups of crushing rollers (301) are meshed.

5. The integrated machine for crushing waste lithium iron phosphate batteries according to claim 1, Features: A reciprocating screw (701) is rotatably mounted on the inner wall of the mounting frame (7), and one end of the reciprocating screw (701) passes through the mounting frame (7) and is fixedly mounted with a second bevel gear (702), the second bevel gear (702) and the first bevel gear (6) are meshed with each other, a shield (703) is fixedly mounted between the inner wall of the mounting frame (7) and the surface at the top of the reciprocating screw (701), a moving seat (704) is slidably mounted on the surface of the reciprocating screw (701) and the bottom of the shield (703), and a symmetrical fixed mounting is mounted on the surface of the moving seat (704). A mounting plate (705) is provided, wherein two groups of clamping rods (706) are symmetrically slidably mounted on the mounting plate (705), the top ends of the two groups of clamping rods (706) pass through the mounting plate (705) and are fixedly mounted with a connecting plate (707), and the bottom ends of the four groups of clamping rods (706) pass through the mounting plate (705) and are fixedly mounted with a clamping plate (708), a clamping spring (709) is provided on the surface of the clamping rod (706) located between the mounting plate (705) and the clamping plate (708), and three groups of scrapers (710) are fixedly mounted on the bottom of the clamping plate (708).

6. The integrated machine for crushing waste lithium iron phosphate batteries according to claim 5, Features: L-shaped slots (711) are symmetrically arranged at the bottom of both sides of the mounting frame (7); mounting grooves (712) are symmetrically arranged inside the two ends of the side of the mounting frame (7) away from the second bevel gear (702); a fixed plug rod (713) is slidably installed inside the mounting groove (712), and the bottom end of the fixed plug rod (713) passes through the mounting groove (712) and extends to the bottom of the mounting frame (7); a limit plate (714) is fixedly installed on the surface of the fixed plug rod (713) located at the bottom of the mounting groove (712); a fixing spring (715) is provided on the surface of the fixed plug rod (713) located inside the mounting groove (712); the top ends of the two groups of fixed plug rods (713) located inside the mounting groove (712) pass through the mounting groove (712) and are fixedly installed with a connecting strip (716); fixing bolts (717) are symmetrically arranged on both sides of the fixing spring (715), and the fixing bolts (717) pass through the connecting strip (716) and are connected to the mounting frame (7).

7. The integrated machine for crushing waste lithium iron phosphate batteries according to claim 6, Features: L-shaped clamping strips (801) are symmetrically fixedly installed on both sides of the top of the screening frame (8), and the positions of the L-shaped clamping strips (801) and the L-shaped slots (711) correspond and have the same shape. A screening net (803) is provided at the central position of the top of the screening frame (8), and fixed plug holes (802) are symmetrically provided at one end of the two groups of L-shaped clamping strips (801) at the top of the screening frame (8), and the positions of the fixed plug holes (802) and the fixed plug rods (713) correspond.

8. A screening method for a waste lithium iron phosphate battery crushing integrated machine, which is based on the waste lithium iron phosphate battery crushing integrated machine according to any one of claims 1 to 7, It is characterized in that The screening method comprises the following steps: Select a suitable screening frame (8) according to the screening needs, place the screening frame (8) close to the bottom of the mounting frame (7), insert the L-shaped card strip (801) into the corresponding L-shaped slots (711) on both sides of the mounting frame (7), push the connecting strip (716) upward to move the fixed plug rod (713) upward and retract it into the mounting groove (712), push the screening frame (8) to cover the bottom of the mounting frame (7), until the positions of the fixed plug hole (802) and the fixed plug rod (713) correspond to each other, loosen the connecting strip (716), and under the rebound action of the fixing spring (715), the two groups of fixed plug rods (713) move downward to push out of the mounting groove (712) and insert into the corresponding fixed plug holes (802), and then tighten the fixing bolt (717) to fix the connecting strip (716) on one side of the mounting frame (7), ensuring that the connecting strip (716) will not drive the fixed plug rod (713) to move arbitrarily out of the fixed plug hole (802); The crushing motor (303) is started to control the driving gear (304) to drive the two sets of driven gears (302) to rotate in the opposite direction, so that the two sets of crushing rollers (301) are synchronously meshed and extruded to rotate, and a proper amount of waste lithium iron phosphate batteries are poured into the feeding rack (4). Under the guidance of the discharge slope (401), the waste lithium iron phosphate batteries fall into the meshing position between the two sets of crushing rollers (301), so that the two sets of crushing rollers (301) squeeze and crush the waste lithium iron phosphate batteries. At the same time, the rotating motor (5) is controlled to drive the bevel gear 1 (6) to rotate, and the rotation is transmitted to the reciprocating screw The rod (701) controls the reciprocating screw (701) to rotate so that the movable seat (704) reciprocates on the surface of the reciprocating screw (701), and the pressing plate (708) is pressed against the screening net (803) under the elastic action of the pressing spring (709), so that the scraper (710) is closely attached to the top of the screening net (803), and the movable seat (704) drives the scraper (710) to reciprocate on the top of the screening net (803), pushing the waste lithium iron phosphate battery slag to move on the top of the screening net (803), so as to prevent the waste lithium iron phosphate battery slag from clogging the screening net (803); The sieved waste lithium iron phosphate battery debris falls from the rectangular groove (105) into the collection box (101), thereby centrally processing the fine particles in the waste lithium iron phosphate batteries, and the remaining waste lithium iron phosphate battery particles with larger particles are accumulated on the top of the sieve net (803). After a certain period of crushing and sieving, the connecting strip (716) is pushed to drive the fixed plug rod (713) to disengage from the fixed plug hole (802), and the sieve frame (8) is pulled away from the bottom of the mounting frame (7), thereby discharging the waste lithium iron phosphate battery particles with larger particles accumulated inside the mounting frame (7).

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