Neodymium iron boron waste recycling pretreatment device

Abstract

The application belongs to the technical field of waste recycling, and particularly relates to a neodymium iron boron waste recycling pretreatment device, which comprises a supporting bottom plate, two guide rods fixedly connected to the top of the supporting bottom plate, a lifting ring slidably connected between the two guide rods, a charging cylinder placed on the supporting bottom plate, an electric rotating rod, a pushing frame and a rotating frame. The lifting ring is sleeved on the top of the charging cylinder, the electric rotating rod is installed in the middle of the lifting ring, one end of the electric rotating rod is connected with the pushing frame, the bottom of the pushing frame is in contact with the charging cylinder, and the middle of the electric rotating rod is connected with the rotating frame. When the electric rotating rod, the pushing frame and the pressing roller rotate around the center of the charging cylinder, the pressing roller crushes the neodymium iron boron waste in the charging cylinder, the pushing frame pushes the neodymium iron boron waste in the charging cylinder, the waste is prevented from being adhered to the bottom of the charging cylinder, the crushed neodymium iron boron waste and the additive can be uniformly mixed, and the working efficiency and the pretreatment effect are improved.

Description

Technical Field

[0001] This invention belongs to the field of waste recycling technology, and more specifically, relates to a pretreatment device for recycling neodymium iron boron waste. Background Technology

[0002] During the processing and production of neodymium iron boron magnets, waste materials such as chips and residual magnet materials are often generated. Neodymium iron boron waste contains a high concentration of rare earth elements and is an extremely valuable renewable resource. In order to reduce environmental harm and resource waste, it is necessary to recycle and utilize neodymium iron boron waste.

[0003] When recycling NdFeB waste, pretreatment is usually required, mainly by crushing the waste into small particles and adding appropriate additives to facilitate subsequent magnetic separation and pressing operations. However, current crushers generally cannot mix the crushed NdFeB waste and additives evenly, and a separate mixer is needed after crushing. The crushing and mixing processes are difficult to make continuous, which affects work efficiency. Summary of the Invention

[0004] In order to solve the problem in the background art that the crushing and mixing process is difficult to be continuous and affects the work efficiency when recycling NdFeB waste, the purpose of this invention is to provide a NdFeB waste recycling pretreatment device that can improve work efficiency.

[0005] A pretreatment device for recycling NdFeB waste includes a supporting base plate, a guide rod, a lifting ring, a loading cylinder, an electric rotating rod, a pusher frame, a rotating frame, a sliding frame, a pressure roller, and compression springs. Two guide rods are fixedly connected to the top of the supporting base plate, and a lifting ring is slidably connected between the two guide rods. A loading cylinder is placed on the supporting base plate, and the lifting ring is sleeved on the top of the loading cylinder. An electric rotating rod is installed in the middle of the lifting ring, and a pusher frame is connected to one end of the electric rotating rod. The bottom of the pusher frame contacts the loading cylinder. A rotating frame is connected to the middle of the electric rotating rod, and a sliding frame is slidably connected to the rotating frame. Multiple compression springs are connected between the sliding frame and the rotating frame, and a pressure roller that contacts the bottom of the loading cylinder is rotatably connected to the sliding frame.

[0006] In a preferred embodiment of the present invention, a stirring mechanism is further included. The stirring mechanism includes a stirring frame, a full gear and a gear ring. The gear ring is connected to the lifting ring. The end of the electric rotary rod away from the pusher frame is rotatably connected to the stirring frame for stirring the NdFeB waste. The top of the stirring frame is connected to the full gear that meshes with the gear ring.

[0007] In a preferred embodiment of the present invention, the agitator includes a plurality of spaced vertical rods, the bottom ends of which are tapered.

[0008] In a preferred embodiment of the present invention, the pusher, the pressure roller and the agitator are arranged in a cross shape.

[0009] In a preferred embodiment of the present invention, an intermittent feeding mechanism is further included. The intermittent feeding mechanism includes a storage bin, a rotating baffle, a torsion spring, and a control component. At least one storage bin is connected to the lifting ring. The bottom of the storage bin is rotatably connected to a rotating baffle that is reset by a torsion spring. The rotating baffle is in sealed contact with the storage bin. The storage bin is provided with a control component.

[0010] In a preferred embodiment of the present invention, the control component includes a protruding rod and a push rod. The rotating baffle is connected to a protruding rod located outside the storage tank. The end of the electric rotating rod is connected to a push rod. When the push rod rotates, it intermittently contacts the protruding rod to cause the rotating baffle to open intermittently.

[0011] In a preferred embodiment of the present invention, a support mechanism is further provided on the support base plate. The support mechanism includes a fixed rod, a ratchet rack and a return spring. Fixed rods are symmetrically connected to the top of the support base plate on the left and right sides. Each fixed rod is slidably connected to a ratchet rack that is reset by the return spring.

[0012] In a preferred embodiment of the present invention, the ratchet racks are provided with a consistent number of ratchet teeth on their adjacent sides. Each ratchet tooth has a beveled bottom and a flat top. When the lifting ring rises, it will contact the beveled surface of the ratchet tooth.

[0013] In a preferred embodiment of the present invention, the top of the support base plate is provided with a flange, the front side of which is open, and the flange limits the side of the loading cylinder.

[0014] In a preferred embodiment of the present invention, a limiting component is further included. The limiting component includes a guide block, a limiting rod, a foot pedal, and a return spring. Two guide blocks are connected to the front top of the support base plate. A limiting rod that is reset by the return spring is slidably connected between the two guide blocks. Foot pedals are connected to both ends of the limiting rod.

[0015] The beneficial effects of the present invention are as follows: 1. When the electric rotary rod, pusher frame and pressure roller of the present invention rotate around the center of the loading cylinder, the pressure roller crushes the NdFeB waste in the loading cylinder, and the pusher frame pushes the NdFeB waste inside the loading cylinder, so as to prevent the waste from sticking to the bottom of the loading cylinder, and also to make the crushed NdFeB waste and additives mix evenly, thereby improving work efficiency and pretreatment effect.

[0016] 2. When the electric rotary rod, stirring frame, and full gear of the present invention rotate, the full gear and stirring frame rotate by means of the gear ring. The stirring frame further stirs the NdFeB waste in the loading cylinder to make it uniform. The vertical rod with a conical bottom end assists in completely crushing the NdFeB waste, thereby improving the pretreatment effect.

[0017] 3. When the electric rotary rod and push rod of the present invention rotate, the push rod will intermittently push the convex rod, and the rotating baffle will open intermittently, thereby intermittently performing the additive feeding work, so that the additive is fed evenly and the pretreatment effect is improved.

[0018] 4. This invention limits the loading cylinder by using a limiting rod and a supporting base flange to prevent displacement of the loading cylinder during processing. When the lifting ring is lifted, the ratchet supports the lifting ring at a suitable height. By stepping on the foot pedal, the limiting rod is moved down, and the loading cylinder can be taken out, making it more convenient to use. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0020] Figure 2 This is a three-dimensional structural diagram of the supporting base plate, guide rod, lifting ring, loading cylinder, electric rotating rod, and pusher frame of the present invention.

[0021] Figure 3 For the present invention Figure 2 The exploded view in the image.

[0022] Figure 4 This is a three-dimensional structural diagram of the rotating frame, sliding frame, and pressure roller of the present invention.

[0023] Figure 5 This is a three-dimensional structural diagram of the agitator, gear, and gear ring of the present invention.

[0024] Figure 6 This is a schematic diagram showing the location of the storage bucket and point A in this invention.

[0025] Figure 7 This is a cross-sectional view of the storage tank of the present invention, showing the connection relationship between the rotating baffle and the torsion spring.

[0026] Figure 8 For the present invention Figure 6 Enlarged view of point A in the image.

[0027] Figure 9 This is a three-dimensional structural diagram of the guide block, limiting rod, foot pedal, and reset spring of the present invention.

[0028] The markings in the attached diagram are as follows: 1: Support base plate, 2: Guide rod, 3: Lifting ring, 4: Loading cylinder, 5: Electric rotating rod, 6: Pusher frame, 7: Rotating frame, 8: Sliding frame, 9: Pressure roller, 91: Compression spring, 101: Agitator frame, 102: Full gear, 103: Gear ring, 111: Storage bucket, 112: Rotating baffle, 113: Torsion spring, 121: Protruding rod, 122: Push rod, 131: Fixing rod, 132: Ratchet, 133: Return spring, 141: Guide block, 142: Limiting rod, 143: Foot pedal, 144: Reset spring. Detailed Implementation

[0029] The technical solution will be further explained below with reference to specific embodiments. It should be noted that the terms "up," "down," "left," and "right" used in this document refer only to the position of the structure shown in the corresponding drawings. The serial numbers assigned to components in this document, such as "first," "second," etc., are only used to distinguish the described objects and have no sequential or technical meaning. Unless otherwise specified, terms such as "connection" and "linkage" in this application include both direct and indirect connections (linkages).

[0030] Implementation Method 1: A pretreatment device for recycling NdFeB waste, please refer to... Figures 1-4 The system includes a support base plate 1, guide rods 2, lifting rings 3, a loading cylinder 4, an electric rotating rod 5, a pusher frame 6, a rotating frame 7, a sliding frame 8, a pressure roller 9, and a compression spring 91. Guide rods 2 are symmetrically welded to the top of the support base plate 1, and a lifting ring 3 is slidably connected between the two guide rods 2. The loading cylinder 4 is placed on the support base plate 1. The top of the support base plate 1 has a flange with an opening at the front, which limits the movement of the side of the loading cylinder 4. The lifting ring 3 is fitted onto the top of the loading cylinder 4, and a servo motor-driven mechanism is installed in the middle of the lifting ring 3. An electric rotary rod 5 is fixedly connected to a pusher frame 6 at one end. The bottom of the pusher frame 6 contacts the loading cylinder 4, so that when the pusher frame 6 rotates, it can push the material at the bottom of the loading cylinder 4. A rotating frame 7 perpendicular to the pusher frame 6 is fixedly connected to the middle of the electric rotary rod 5. A sliding frame 8 is slidably connected to the rotating frame 7. Eight compression springs 91 are fixedly connected between the sliding frame 8 and the rotating frame 7. A pressure roller 9 is rotatably connected to the sliding frame 8. The pressure roller 9 abuts against the bottom of the loading cylinder 4. The rotation of the pressure roller 9 crushes the NdFeB waste material in the loading cylinder 4.

[0031] First, the NdFeB waste material and additives to be pre-treated are added to the loading cylinder 4. The servo motor drives the electric rotary rod 5 to rotate clockwise, causing the pusher frame 6, rotating frame 7, sliding frame 8, and pressure roller 9 to rotate clockwise around the center of the loading cylinder 4. The compression spring 91 is in a compressed state. Under the action of the compression spring 91, the pressure roller 9 presses against the bottom of the loading cylinder 4, crushing the NdFeB waste material in the loading cylinder 4. At the same time, the pusher frame 6 pushes the NdFeB waste material and additives at the bottom of the loading cylinder 4, and causes the NdFeB waste material inside the loading cylinder 4 to be crushed. Loosen the material to prevent NdFeB waste from sticking to the bottom of the loading cylinder 4, ensuring that the NdFeB waste and additives are mixed evenly, improving work efficiency and pretreatment effect. After the NdFeB waste is crushed and mixed, the electric rotary rod 5, pusher 6, rotating frame 7, sliding frame 8 and pressure roller 9 stop rotating, and the lifting ring 3 is lifted, so that the electric rotary rod 5, pusher 6, rotating frame 7, sliding frame 8 and pressure roller 9 rise away from the inside of the loading cylinder 4, and the loading cylinder 4 can be removed, making it convenient to pour out the NdFeB waste in the loading cylinder 4 for collection and further processing.

[0032] Implementation Method 2: Based on Implementation Method 1, please refer to... Figure 1 and Figure 5 It also includes a stirring mechanism, which includes a stirring frame 101, a full gear 102 and a gear ring 103. The gear ring 103 is welded on the lifting ring 3. The end of the electric rotating rod 5 away from the pusher frame 6 is rotatably connected to the stirring frame 101. The stirring frame 101 includes multiple vertical rods arranged at intervals. The bottom ends of these vertical rods are conical. The top of the stirring frame 101 is fixedly connected to the full gear 102 that meshes with the gear ring 103. The pusher frame 6, the pressure roller 9 and the stirring frame 101 are arranged in a cross shape.

[0033] When the electric rotary rod 5 rotates, it drives the stirring frame 101 and the full gear 102 to rotate together around the center of the loading cylinder 4. Through the meshing of the full gear 102 and the gear ring 103, the full gear 102 rotates simultaneously, driving the stirring frame 101 to rotate. The stirring frame 101 further stirs the NdFeB waste in the loading cylinder 4 to make it uniform. The vertical rod with a conical bottom end assists in crushing the NdFeB waste, so that the NdFeB waste can be completely crushed and the pretreatment effect is improved.

[0034] Implementation Method 3: Based on Implementation Method 2, please refer to... Figure 1 , Figure 6 , Figure 7 and Figure 8It also includes an intermittent feeding mechanism, which comprises a storage bin 111, a rotating baffle 112, a torsion spring 113, and a control assembly. Two storage bins 111 are fixedly connected to the lifting ring 3. A rotating baffle 112 is rotatably connected to the bottom of each storage bin 111. A torsion spring 113 is fixedly connected between the rotating baffle 112 and the storage bin 111. The rotating baffle 112 is in sealed contact with the storage bin 111. A control assembly is provided on the storage bin 111, which includes a protruding rod 121 and a push rod 122. A protruding rod 121 is fixedly connected to each rotating baffle 112. The protruding rod 121 is located outside the storage bin 111. A push rod 122 is fixedly connected to the end of the electric rotating rod 5. (Reference) Figure 6 and Figure 8 The push rod 122 rotates and intermittently contacts the protruding rod 121, causing the rotating baffle 112 to open intermittently, thereby achieving intermittent feeding.

[0035] Add the required additives into the storage tank 111. The rotating baffle 112 is closed under the action of the torsion spring 113. When the electric rotary rod 5 rotates, it drives the push rod 122 to rotate clockwise around the center of the loading cylinder 4. When the push rod 122 contacts the protruding rod 121, the push rod 122 pushes the protruding rod 121 to rotate, causing the rotating baffle 112 to rotate downwards and open. The torsion spring 113 deforms, and the additives in the storage tank 111 fall into the loading cylinder 4. When the push rod 122 separates from the protruding rod 121, the torsion spring 113 returns to its original state, causing the rotating baffle 112 to rotate upwards and close. The storage tank 111 stops being filled. This operation is repeated. The rotating push rod 122 will intermittently push the protruding rod 121, causing the rotating baffle 112 to open intermittently, thus intermittently adding additives, making the additives added evenly and improving the pretreatment effect.

[0036] Implementation Method 4: Based on Implementation Method 3, please refer to... Figure 1 It also includes a support mechanism, which includes a fixed rod 131, a ratchet rack 132 and a return spring 133. Fixed rods 131 are symmetrically welded to the top of the support base plate 1. Each fixed rod 131 is slidably connected to a ratchet rack 132. Two return springs 133 are fixedly connected between the ratchet rack 132 and the fixed rod 131. The ratchet rack 132 has a consistent number of ratches on the side that is close to each other. Each ratchet has a sloped bottom and a flat top. When the lifting ring 3 rises, it will contact the sloped surface of the ratchet.

[0037] Please refer to Figure 1 and Figure 9It also includes a limiting component, which includes a guide block 141, a limiting rod 142, a foot pedal 143, and a return spring 144. Two guide blocks 141 are fixedly connected to the top front side of the support base plate 1. A limiting rod 142 is slidably connected between the two guide blocks 141. Two return springs 144 are fixedly connected between the limiting rod 142 and the support base plate 1. Foot pedals 143 are fixedly connected to both ends of the limiting rod 142.

[0038] Initially, the limiting rod 142 can limit the front side of the loading cylinder 4, and the flange can limit the rear side and the left and right sides of the loading cylinder 4 to prevent the loading cylinder 4 from shifting during the processing of NdFeB waste. When the lifting ring 3 is lifted, the lifting ring 3 squeezes the two ratchet racks 132 away from each other through the inclined plane, and the return spring 133 is compressed. When the lifting ring 3 is stuck on the ratchet at the appropriate height, the return spring 133 returns to its original state, driving the two ratchet racks 132 to move closer to each other. Thus, the two ratchet racks 132 support the lifting ring 3 at the appropriate height, making it easy for people to pick up the loading cylinder 4. At this time, by stepping on the foot pedal 143, the limiting rod 142 can be moved down to release the limitation on the front side of the loading cylinder 4, and the loading cylinder 4 can be taken out, making it more convenient to use.

[0039] Although the present invention has been described in detail with reference to the above embodiments, it will be apparent to those skilled in the art that various changes or modifications can be made to the invention without departing from the principles and spirit of the invention as defined by the claims. Therefore, the detailed description of the embodiments in this disclosure is for explanation only and not for limiting the invention, but rather the scope of protection is defined by the content of the claims.

Claims

1. A pretreatment device for recycling NdFeB waste, comprising a supporting base plate (1), characterized in that, It also includes guide rods (2), lifting rings (3), loading cylinders (4), electric rotating rods (5), pusher frames (6), rotating frames (7), sliding frames (8), pressure rollers (9) and compression springs (91). Two guide rods (2) are fixedly connected to the top of the support base plate (1). The lifting ring (3) is slidably connected between the two guide rods (2). The loading cylinder (4) is placed on the support base plate (1). The lifting ring (3) is sleeved on the top of the loading cylinder (4). The electric rotating rod (5) is installed in the middle of the lifting ring (3). One end of the electric rotating rod (5) is connected to the pusher frame (6). The bottom of the pusher frame (6) is in contact with the loading cylinder (4). The rotating frame (7) is connected in the middle of the electric rotating rod (5). The sliding frame (8) is slidably connected on the rotating frame (7). Multiple compression springs (91) are connected between the sliding frame (8) and the rotating frame (7). The pressure roller (9) that contacts the bottom of the loading cylinder (4) is rotatably connected on the sliding frame (8). It also includes an intermittent feeding mechanism, which includes a storage bin (111), a rotating baffle (112), a torsion spring (113), and a control component. At least one storage bin (111) is connected to the lifting ring (3). The bottom of the storage bin (111) is rotatably connected to the rotating baffle (112) which is reset by the torsion spring (113). The rotating baffle (112) is in sealed contact with the storage bin (111). The storage bin (111) is provided with a control component. The control assembly includes a protruding rod (121) and a push rod (122). The rotating baffle (112) is connected to the protruding rod (121) located outside the storage bucket (111). The end of the electric rotating rod (5) is connected to the push rod (122). The rotation of the push rod (122) will intermittently contact the protruding rod (121) to make the rotating baffle (112) open intermittently.

2. The neodymium iron boron waste recycling pretreatment device according to claim 1, characterized in that, It also includes a stirring mechanism, which includes a stirring frame (101), a full gear (102) and a gear ring (103). The gear ring (103) is connected to the lifting ring (3). The end of the electric rotating rod (5) away from the pusher frame (6) is rotatably connected to the stirring frame (101) for stirring NdFeB waste. The top of the stirring frame (101) is connected to the full gear (102) that meshes with the gear ring (103).

3. The neodymium iron boron waste recycling pretreatment device according to claim 2, characterized in that, The agitator (101) includes multiple vertical bars arranged at intervals, with the bottom of each bar being conical.

4. The neodymium iron boron waste recycling pretreatment device according to claim 3, characterized in that, The pusher (6), the pressure roller (9) and the agitator (101) are arranged in a cross shape.

5. The neodymium iron boron waste recycling pretreatment device according to claim 1, characterized in that, It also includes a support mechanism on the support base plate (1). The support mechanism includes a fixed rod (131), a ratchet (132) and a return spring (133). The top of the support base plate (1) is symmetrically connected with the fixed rod (131) on the left and right. The fixed rod (131) is slidably connected with the ratchet (132) which is reset by the return spring (133).

6. The neodymium iron boron waste recycling pretreatment device according to claim 5, characterized in that, The ratchet (132) has a consistent number of ratchet teeth on the side that are close to each other. Each ratchet tooth has a sloping bottom and a flat top. When the lifting ring (3) rises, it will contact the sloping surface of the ratchet tooth.

7. The neodymium iron boron waste recycling pretreatment device according to claim 6, characterized in that, The top of the support base plate (1) is provided with a flange, and the front side of the flange is open. The flange limits the side of the loading cylinder (4).

8. A neodymium iron boron waste recycling pretreatment device according to claim 7, characterized in that, It also includes a limit assembly, which includes a guide block (141), a limit rod (142), a foot pedal (143) and a reset spring (144). Two guide blocks (141) are connected to the front top of the support base plate (1). A limit rod (142) that is reset by the reset spring (144) is slidably connected between the two guide blocks (141). Foot pedals (143) are connected to both ends of the limit rod (142).

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