Crushing and recycling device for waste plastics
By designing a crushing and recycling device including flattening, feeding and air selection mechanism, the problems of uneven flattening of bottle plastics, low automatic loading and crushing efficiency in the prior art are solved, and efficient plastic recycling and crushing effects are achieved.
Patent Information
- Application Number
- CN202510103991.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-23
- Publication Date
- 2025-05-02
AI Technical Summary
Existing plastic recycling technology is difficult to effectively flatten bottle plastic, resulting in large space occupation and low working efficiency. Some of the plastic cannot fall when the plastic is crushed, affecting the crushing work.
A crushing and recycling device including a flattening mechanism, a feeding mechanism and an air selection mechanism are designed. The flattening mechanism drives the rotating cylinder and magnetic press plate through a servo motor to achieve uniform flattening of the bottle plastic; the feeding mechanism realizes automatic loading and crushing of the plastic through a gear set and a reciprocating screw; the air selection mechanism realizes broken plastic sorting through the blade set and gas channels.
The uniform flattening of the bottle plastic is achieved, and the recycling efficiency is improved; the crushing effect is ensured through automatic loading and crushing; the air selection mechanism effectively sorts the plastic, which improves the quality of the recycled substances.
Smart Images
Figure CN119910794A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of plastic recycling, and more particularly to a crushing and recycling device for waste plastics. Background Art
[0002] Waste plastics are a general term for plastics that have been used and eventually eliminated or replaced in civil and industrial applications. Plastics refer to materials that are mainly composed of resins and additives such as plasticizers, fillers, lubricants, and colorants as auxiliary ingredients. They can flow and form during processing. Plastics are synthetic polymer compounds that can change their shapes freely. Plastics are materials that are polymerized by synthesis or condensation reactions using monomer raw materials. They are composed of synthetic resins and additives such as fillers, plasticizers, stabilizers, and lubricants. Therefore, their degradation process is very slow. If waste plastics cannot be recycled in time, it will cause great damage to the environment. Through recycling and reuse, the impact of waste on the environment is effectively reduced and precious natural resources are protected. As a petroleum derivative, the production of plastic depends on limited petroleum resources. Recycling waste plastic reduces the demand for raw materials such as petroleum and facilitates sustainable development. Professionally processed recycled plastic can not only be used as raw materials to produce new plastic products, but also can be used to make environmentally friendly bags, trash cans and other practical items, realizing the recycling of resources; Nowadays, waste plastics need to be crushed and recycled when they are recycled. However, some plastics in bottle structures need to be flattened before recycling. If the plastics in the bottle are not flattened, a small amount of waste plastics will take up a large space, thereby reducing the overall work efficiency. Today's plastic flattening devices cannot flatten the bottle plastics more evenly. The plastic is crushed after being flattened. When the plastic is crushed, if all the plastic is poured into the crushing mechanism, part of the plastic cannot fall down due to the lightness of the plastic itself, and the crushing work cannot be performed normally. Summary of the invention
[0003] In order to overcome the above-mentioned defects of the prior art, an embodiment of the present invention provides a crushing and recycling device for waste plastics to solve the technical problems raised in the background technology.
[0004] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a crushing and recycling device for waste plastics, comprising a support platform, the top of the support platform is fixedly connected to a support frame, the top of the support frame is fixedly connected to a flattening mechanism, the side of the support platform is fixedly connected to a connecting plate, the side of the connecting plate away from the support platform is movably connected to a wind selection mechanism, the top of the support platform is movably connected to a feeding mechanism, the side of the support platform away from the connecting plate is fixedly connected to a pulverizer, and the gas in the wind selection mechanism is passed into the pulverizer; The flattening mechanism includes a servo motor that can provide power, an output shaft is fixedly connected to the side of the servo motor, a rotating cylinder is fixedly connected to the side of the output shaft, the top of the support frame is fixedly connected to the supporting outer cylinder, the rotating cylinder is located inside the supporting outer cylinder, an arc-shaped magnetic plate is fixedly connected to the side of the supporting outer cylinder, a placement groove is opened on the side of the rotating cylinder, and a magnetic pressure plate is movably connected in the placement groove of the rotating cylinder.
[0005] In a preferred embodiment, a feed port is fixedly connected to the top end of the supporting outer cylinder, a through hole is opened at the bottom end of the supporting outer cylinder, the distance between the outer surface of the rotating cylinder and the inner surface of the supporting outer cylinder is half the diameter of the bottle plastic, and the bottle plastic can pass under the feed port, and the number of placement grooves on the side of the rotating cylinder is eight, and the eight placement grooves are distributed at equal angles on the side of the rotating cylinder.
[0006] In a preferred embodiment, a limiting rod is fixedly connected in the placement groove of the rotating cylinder, the top end of the limiting rod is fixedly connected to the limiting plate, a limiting groove matched with the limiting plate is opened inside the magnetic pressure plate, and a support spring is movably sleeved on the side of the limiting rod, and the support spring is located in the magnetic pressure plate.
[0007] In a preferred embodiment, the top of the limit plate is fixedly connected to a ejector head, and the top of the magnetic pressure plate is provided with a avoidance hole adapted to the ejector head. When the bottom of the magnetic pressure plate is in contact with the limit groove of the rotating cylinder, the top of the ejector head is located five millimeters above the top of the magnetic pressure plate.
[0008] In a preferred embodiment, the feeding mechanism includes a gear set that can rotate synchronously with the output shaft in the flattening mechanism, and a speed-increasing gear is meshed at the bottom of the gear set. A reciprocating screw is fixedly connected to the inside of the speed-increasing gear. A movable plate is threadedly connected to the side of the reciprocating screw. A feeding plate is fixedly connected to the top of the movable plate, and a limiting arc plate is movably connected to the bottom of the feeding plate.
[0009] In a preferred embodiment, the bottom end of the limiting arc plate is fixedly connected to the top end of the support platform, and an avoidance groove for the feeding plate to move is opened inside the limiting arc plate. When the feeding plate moves to the side closest to the speed increasing gear, the bottle plastic falls into the limiting arc plate, and when the feeding plate is reset, the bottle body is rotated in the flattening mechanism and does not fall.
[0010] In a preferred embodiment, the air separation mechanism includes a rotating shaft that rotates synchronously with the reciprocating screw in the feeding mechanism, a blade group is fixedly connected to the side of the rotating shaft, the rotating shaft is located in a support platform, a conical cylinder is fixedly connected to the side of the support platform, and the blade group is located in the conical cylinder.
[0011] In a preferred embodiment, an exhaust pipe is fixedly connected to the side of the conical cylinder away from the blade group, an exhaust branch pipe is fixedly connected to the side of the exhaust pipe, the exhaust branch pipe is located in the grinder, an air intake pipe is fixedly connected in the support platform, and the air intake pipe is connected to the conical cylinder.
[0012] Technical effects and advantages of the present invention: The present invention puts the discarded bottle body plastic into the placement groove of the rotating drum through the feed port. As the rotating drum rotates, when the magnetic pressing plate rotates to the position of the arc-shaped magnetic plate, the magnetic pressing plate moves toward the arc-shaped magnetic plate under the action of magnetism, and automatically flattens the plastic during the movement. When the flattened plastic rotates to the bottom, the support spring resets the magnetic pressing plate, and the flattened plastic is automatically discharged, thereby ensuring that each plastic is evenly flattened. The flattened bottle plastic of the present invention falls into the limiting arc plate, and the speed increasing gear drives the reciprocating screw to rotate. When the reciprocating screw rotates, the moving plate moves back and forth, and the moving plate drives the feeding plate to move back and forth. When the plastic falls into the limiting arc plate, the feeding plate pushes the plastic into the crusher for crushing. When waiting for the next plastic to fall, the feeding plate will reset and feed the next plastic. Therefore, the flattened bottle plastic will be crushed in sequence, ensuring the crushing effect. When the movable plate of the present invention rotates, the blade group is driven to rotate through the rotating shaft. When the blade group rotates, gas is generated. The generated gas is passed into the exhaust pipe through the conical cylinder. The gas in the exhaust pipe is discharged into the crusher through the exhaust branch pipe, and the crushed bottle plastic is sorted. At this time, lighter plastics such as stickers on the bottle plastic will be blown out, which is convenient for recycling. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 It is a schematic diagram of the overall front structure of the present invention.
[0014] Figure 2 It is a schematic diagram of the overall back structure of the present invention.
[0015] Figure 3 It is a schematic diagram of the overall structure of the flattening mechanism of the present invention.
[0016] Figure 4 It is a schematic diagram of the internal structure of the supporting outer cylinder of the present invention.
[0017] Figure 5 It is a schematic diagram of the cross-sectional structure of the rotating drum of the present invention.
[0018] Figure 6 It is a schematic diagram of the internal structure of the magnetic pressing plate of the present invention.
[0019] Figure 7 It is a schematic structural diagram of the feeding mechanism of the present invention.
[0020] Figure 8 It is a schematic diagram of the structure of the air selection mechanism of the present invention.
[0021] The accompanying drawings are marked as follows: 1. Support table; 2. Support frame; 3. Connecting plate; 4. Flattening mechanism; 401. Servo motor; 402. Output shaft; 403. Rotating cylinder; 404. Support outer cylinder; 405. Feeding port; 406. Arc magnetic plate; 407. Magnetic pressure plate; 408. Limit rod; 409. Limit plate; 410. Ejector head; 411. Support spring; 5. Feeding mechanism; 501. Gear set; 502. Speed increasing gear; 503. Reciprocating screw; 504. Moving plate; 505. Feeding plate; 506. Limiting arc plate; 6. Air selection mechanism; 601. Rotating shaft; 602. Blade set; 603. Conical cylinder; 604. Exhaust pipe; 605. Exhaust branch pipe; 606. Intake pipe; 7. Crusher. DETAILED DESCRIPTION
[0022] The technical solution of the present invention will be clearly and completely described below in conjunction with the drawings in the present invention. In addition, the forms of the various structures recorded in the following embodiments are merely illustrative. The crushing and recycling device for waste plastics involved in the present invention is not limited to the various structures recorded in the following embodiments. All other embodiments obtained by ordinary technicians in this field without making creative work belong to the scope of protection of the present invention.
[0023] Reference Figure 1 and Figure 2 The present invention provides a crushing and recycling device for waste plastics, including a support platform 1, a support frame 2 is fixedly connected to the top of the support platform 1, a flattening mechanism 4 is fixedly connected to the top of the support frame 2, a connecting plate 3 is fixedly connected to the side of the support platform 1, a side of the connecting plate 3 away from the support platform 1 is movably connected to a wind separation mechanism 6, a feeding mechanism 5 is movably connected to the top of the support platform 1, a pulverizer 7 is fixedly connected to the side of the support platform 1 away from the connecting plate 3, and the gas in the wind separation mechanism 6 is passed into the pulverizer 7.
[0024] In the embodiment of the present application, bottle plastic can be added to the top of the flattening mechanism 4, and when adding bottle plastic, it can be added by means of a conveyor belt. The bottle plastic will be accumulated in the feed port 405 of the flattening mechanism 4, and there is no need to put it in one by one manually. The present application can automatically flatten, load, crush and winnow the bottle plastic, and then automatically complete the crushing and recycling of waste plastic.
[0025] Reference Figure 3 , Figure 4 , Figure 5 as well as Figure 6 The flattening mechanism 4 includes a servo motor 401 that can provide power, an output shaft 402 is fixedly connected to the side of the servo motor 401, a rotating cylinder 403 is fixedly connected to the side of the output shaft 402, the top of the support frame 2 is fixedly connected to the supporting outer cylinder 404, the rotating cylinder 403 is located in the supporting outer cylinder 404, the side of the supporting outer cylinder 404 is fixedly connected to an arc-shaped magnetic plate 406, a placement groove is provided on the side of the rotating cylinder 403, a magnetic pressure plate 407 is movably connected in the placement groove of the rotating cylinder 403, a feed port 405 is fixedly connected to the top of the supporting outer cylinder 404, a through hole is provided at the bottom of the supporting outer cylinder 404, the distance between the outer surface of the rotating cylinder 403 and the inner surface of the supporting outer cylinder 404 is half the diameter of the bottle plastic, and the bottle plastic can pass through the lower part of the feed port 405 There are eight placement grooves on the side of the rotating cylinder 403, and the eight placement grooves are distributed at equal angles on the side of the rotating cylinder 403. A limiting rod 408 is fixedly connected in the placement groove of the rotating cylinder 403, and the top of the limiting rod 408 is fixedly connected to the limiting plate 409. The inside of the magnetic pressure plate 407 is provided with a limiting groove matched with the limiting plate 409. A supporting spring 411 is movably sleeved on the side of the limiting rod 408, and the supporting spring 411 is located in the magnetic pressure plate 407. The top of the limiting plate 409 is fixedly connected with an ejector head 410, and the top of the magnetic pressure plate 407 is provided with an avoidance hole matched with the ejector head 410. When the bottom of the magnetic pressure plate 407 is in contact with the limiting groove of the rotating cylinder 403, the top of the ejector head 410 is located five millimeters above the top of the magnetic pressure plate 407.
[0026] In the embodiment of the present application, after the bottle plastic is placed into the feed port 405, when the placement groove on the side of the magnetic pressure plate 407 is just below the feed port 405, the bottle plastic will fall into the placement groove and rotate with the rotation of the rotating cylinder 403, and the distance between the outer surface of the rotating cylinder 403 and the inner surface of the supporting outer cylinder 404 is half of the diameter of the bottle plastic, which can prevent the bottle plastic from falling between the rotating cylinder 403 and the supporting outer cylinder 404 and being unable to move. When the bottle plastic moves to the location of the arc-shaped magnetic plate 406, under the action of the magnetic attraction, the magnetic pressure plate 407 will move away from the rotating cylinder 403, thereby flattening the bottle plastic. After flattening, even if the flattened bottle plastic falls directly from the rotating cylinder 403, it will only fall from the through hole diameter below the supporting outer cylinder 404, and there is a gap between the limit rod 408 and the rotating cylinder 403. The upper part of the support spring 411 contacts the limit plate 409, and the lower part contacts the magnetic pressure plate 407. Therefore, when the magnetic pressure plate 407 moves away from the rotating cylinder 403, the upper part of the support spring 411 is fixed by the limit plate 409. When the magnetic pressure plate 407 moves, the support spring 411 is compressed. Therefore, when the placement groove with the bottle plastic is rotated to the bottom or rotated over the arc-shaped magnetic plate 406, the compressed support spring 411 will be reset. When resetting, the magnetic pressure plate 407 will be reset, and the top of the ejector head 410 is located five millimeters above the top of the magnetic pressure plate 407. Therefore, when the magnetic pressure plate 407 is reset, the ejector head 410 will come out of the magnetic pressure plate 407. When the bottle plastic is flattened and adheres to the magnetic pressure plate 407, the ejector head 410 can eject the bottle plastic to ensure the flattening effect of the platform plastic after flattening.
[0027] Reference Figure 1 and Figure 7 The feeding mechanism 5 includes a gear set 501 that can rotate synchronously with the output shaft 402 in the flattening mechanism 4, and an increasing gear 502 is meshed at the bottom of the gear set 501. A reciprocating screw 503 is fixedly connected inside the increasing gear 502, and a movable plate 504 is threadedly connected to the side of the reciprocating screw 503. A feeding plate 505 is fixedly connected to the top of the movable plate 504, and a limiting arc plate 506 is movably connected below the feeding plate 505. The bottom end of the limiting arc plate 506 is fixedly connected to the top of the support platform 1, and an avoidance groove for the feeding plate 505 to move is provided inside the limiting arc plate 506. When the feeding plate 505 moves to the side closest to the increasing gear 502, the bottle plastic falls into the limiting arc plate 506. When the feeding plate 505 is reset, the bottle body rotates in the flattening mechanism 4 and does not fall.
[0028] In the embodiment of the present application, the feeding plate 505 will move back and forth. When the flattened bottle plastic falls into the limiting arc plate 506, the feeding plate 505 moves to push the plastic into the crusher 7 for crushing. When the next flattened plastic falls, the moving plate 504 will drive the feeding plate 505 to reset and perform the next feeding work. Therefore, the flattened bottle plastic will be fed in sequence to ensure the crushing effect.
[0029] Reference Figure 1 , Figure 7 and Figure 8 The air separation mechanism 6 includes a rotating shaft 601 that rotates synchronously with the reciprocating screw 503 in the feeding mechanism 5, and a blade group 602 is fixedly connected to the side of the rotating shaft 601. The rotating shaft 601 is located in the support platform 1, and a conical cylinder 603 is fixedly connected to the side of the support platform 1. The blade group 602 is located in the conical cylinder 603, and an exhaust pipe 604 is fixedly connected to the side of the conical cylinder 603 away from the blade group 602. An exhaust branch pipe 605 is fixedly connected to the side of the exhaust pipe 604, and the exhaust branch pipe 605 is located in the grinder 7. An air intake pipe 606 is fixedly connected to the support platform 1, and the air intake pipe 606 is connected to the conical cylinder 603.
[0030] In the embodiment of the present application, when the blade group 602 rotates, the gas is sent out in the direction away from the rotating shaft 601. At this time, the gas will be blown into the exhaust pipe 604, and finally enter the pulverizer 7 through the exhaust branch pipe 605, and the crushed plastic will be air-selected. The gas generated when the blade group 602 rotates will be taken in through the intake pipe 606, which is convenient for controlling the incoming gas.
[0031] The working principle of the present invention is as follows: the bottle plastic is put into the feed port 405, the bottle plastic is accumulated in the feed port 405, and when the servo motor 401 is started, the output shaft 402 drives the rotating cylinder 403 to rotate, and when the placement groove on the side of the rotating cylinder 403 rotates to the bottom of the arc-shaped magnetic plate 406, the bottle plastic under the arc-shaped magnetic plate 406 will fall into the placement groove of the arc-shaped magnetic plate 406, and the bottle plastic will move downward with the rotation of the arc-shaped magnetic plate 406, and the placement groove above the arc-shaped magnetic plate 406 will first rotate to the position where the arc-shaped magnetic plate 406 is located, and at this time, a magnetic attraction is generated between the magnetic pressure plate 407 and the arc-shaped magnetic plate 406, so The magnetic pressing plate 407 will move close to the arc-shaped magnetic plate 406. When the magnetic pressing plate 407 moves toward the arc-shaped magnetic plate 406, it will synchronously drive the bottle body to move. When the magnetic pressing plate 407 moves, it will flatten the bottle body plastic. When the magnetic pressing plate 407 moves, the support spring 411 will be compressed at the bottom of the magnetic pressing plate 407. After the bottle body plastic is flattened, the magnetic pressing plate 407 will rotate over the arc-shaped magnetic plate 406, so the compressed support spring 411 will reset. When the magnetic pressing plate 407 rotates to the bottom, the magnetic pressing plate 407 will move downward, and the flattened bottle body plastic will be discharged through the through hole at the bottom of the supporting outer cylinder 404. After the bottle plastic is discharged through the supporting outer cylinder 404, it will fall into the limiting arc plate 506. When the output shaft 402 rotates, it will drive the reciprocating screw 503 to rotate through the gear set 501 and the speed increasing gear 502. When the reciprocating screw 503 rotates, the moving plate 504 will reciprocate, and the moving plate 504 will drive the feeding plate 505 to reciprocate. The feeding plate 505 will reciprocate. When the flattened bottle plastic falls inside the limiting arc plate 506, the feeding plate 505 moves to push the plastic into the crusher 7 for crushing. When the next flattened plastic falls, the moving plate 504 will drive the feeding plate 505 to reset and perform the next feeding work. When the reciprocating screw 503 rotates, it will drive the rotating shaft 601 to rotate. When the rotating shaft 601 rotates, it will drive the blade group 602 to rotate. When the blade group 602 rotates, it will send the gas in the direction away from the rotating shaft 601. At this time, the gas will be blown into the exhaust pipe 604, and finally enter the pulverizer 7 through the exhaust branch pipe 605 to air-separate the crushed plastic. The air generated when the blade group 602 rotates will be taken in through the air intake pipe 606. When the air intake pipe 606 is taking in air, the air intake pipe 606 can be connected to dry hot air to perform optional air separation on the crushed plastic.
[0032] Finally: The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.
Claims
1. A device for crushing and recycling waste plastics, comprising a support platform (1), characterized in that: The top of the support platform (1) is fixedly connected to a support frame (2), the top of the support frame (2) is fixedly connected to a flattening mechanism (4), the side of the support platform (1) is fixedly connected to a connecting plate (3), the side of the connecting plate (3) away from the support platform (1) is movably connected to a wind selection mechanism (6), the top of the support platform (1) is movably connected to a feeding mechanism (5), the side of the support platform (1) away from the connecting plate (3) is fixedly connected to a pulverizer (7), and the gas in the wind selection mechanism (6) is passed into the pulverizer (7); the flattening mechanism (4) includes a A servo motor (401) is provided with a power source, an output shaft (402) is fixedly connected to the side of the servo motor (401), a rotating cylinder (403) is fixedly connected to the side of the output shaft (402), a top end of the support frame (2) is fixedly connected to a supporting outer cylinder (404), the rotating cylinder (403) is located inside the supporting outer cylinder (404), a curved magnetic plate (406) is fixedly connected to the side of the supporting outer cylinder (404), a placement groove is provided on the side of the rotating cylinder (403), and a magnetic pressure plate (407) is movably connected to the placement groove of the rotating cylinder (403).
2. A crushing and recycling device for waste plastics according to claim 1, characterized in that: The top end of the supporting outer cylinder (404) is fixedly connected to a feed port (405), the bottom end of the supporting outer cylinder (404) is provided with a through hole, the distance between the outer surface of the rotating cylinder (403) and the inner surface of the supporting outer cylinder (404) is half the diameter of the bottle plastic, and the bottle plastic can pass under the feed port (405), and the number of placement grooves on the side of the rotating cylinder (403) is eight, and the eight placement grooves are distributed at equal angles on the side of the rotating cylinder (403).
3. The crushing and recycling device for waste plastics according to claim 2 is characterized in that: A limiting rod (408) is fixedly connected in the placement groove of the rotating cylinder (403), the top end of the limiting rod (408) is fixedly connected to the limiting plate (409), a limiting groove matching the limiting plate (409) is provided inside the magnetic pressure plate (407), a supporting spring (411) is movably sleeved on the side of the limiting rod (408), and the supporting spring (411) is located inside the magnetic pressure plate (407).
4. The crushing and recycling device for waste plastics according to claim 3 is characterized in that: The top end of the limiting plate (409) is fixedly connected to an ejector head (410), and the top end of the magnetic pressing plate (407) is provided with an avoidance hole matched with the ejector head (410). When the bottom of the magnetic pressing plate (407) is in contact with the limiting groove of the rotating cylinder (403), the top end of the ejector head (410) is located five millimeters above the top end of the magnetic pressing plate (407).
5. The device for crushing and recycling waste plastics according to claim 1, characterized in that: The feeding mechanism (5) comprises a gear set (501) which can rotate synchronously with the output shaft (402) in the flattening mechanism (4); a speed-increasing gear (502) is meshed below the gear set (501); a reciprocating screw (503) is fixedly connected inside the speed-increasing gear (502); a moving plate (504) is threadedly connected to the side of the reciprocating screw (503); a feeding plate (505) is fixedly connected to the top of the moving plate (504); and a limiting arc plate (506) is movably connected below the feeding plate (505).
6. The device for crushing and recycling waste plastics according to claim 5, characterized in that: The bottom end of the limiting arc plate (506) is fixedly connected to the top end of the support platform (1); a avoiding groove for the feeding plate (505) to move is provided inside the limiting arc plate (506); when the feeding plate (505) moves to the side closest to the speed increasing gear (502), the bottle plastic falls into the limiting arc plate (506); when the feeding plate (505) is reset, the bottle body rotates in the flattening mechanism (4) and does not fall.
7. The device for crushing and recycling waste plastics according to claim 1, characterized in that: The air separation mechanism (6) comprises a rotating shaft (601) that rotates synchronously with a reciprocating screw (503) in the feeding mechanism (5); a blade group (602) is fixedly connected to a side of the rotating shaft (601); the rotating shaft (601) is located in a support platform (1); a conical cylinder (603) is fixedly connected to a side of the support platform (1); and the blade group (602) is located in the conical cylinder (603).
8. The device for crushing and recycling waste plastics according to claim 7, characterized in that: An exhaust pipe (604) is fixedly connected to the side of the conical cylinder (603) away from the blade group (602), an exhaust branch pipe (605) is fixedly connected to the side of the exhaust pipe (604), the exhaust branch pipe (605) is located in the pulverizer (7), and an air intake pipe (606) is fixedly connected to the support platform (1), and the air intake pipe (606) is in communication with the conical cylinder (603).