Device for crushing abnormal-shaped materials in polyolefin powder production

The hydraulically driven star motor and planetary motor combined with the design of trapezoidal crushing plates, crushing stirring rods and aeration pumps solves the problem of poor crushing effect in polyolefin powder production, achieving efficient crushing and energy saving.

CN120714743APending Publication Date: 2025-09-30SHANGHAI FIERGE TECHNOLOGY CO LTD
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Patent Information

Application Number
CN202511007553.4
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-07-22
Publication Date
2025-09-30

AI Technical Summary

Technical Problem

In the existing technology, the crushing effect and internal control effect of polyolefin powder production process are poor, and efficient crushing and energy saving cannot be achieved.

Method used

It uses hydraulically driven star motors and planetary motors, combined with trapezoidal crushing plates, crushing stirring rods and aeration pumps. Through screening with screens and micro-vibration motors, the rotation rate of the crushing components is controlled and energy is optimized. Magnet blocks are set to absorb iron impurities, and air is injected through the snorkel to enhance the crushing effect.

Benefits of technology

It improves crushing efficiency, reduces energy consumption, realizes effective crushing and screening of materials with abnormal shapes, and improves the operating stability of the equipment and material output efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

One or more embodiments of the specification provide a device for crushing abnormal-shaped materials in polyolefin powder production, the device comprises a main body and a feeding frame mounted above the main body, and the main body is rotated to a mounting center shaft through a sealing bearing; an inner cavity is formed in the main body, multiple groups of crushing plates for crushing are arranged on the two sides of the inner cavity respectively, the crushing plates are of trapezoidal structures, and corresponding crushing stirring rods are arranged at the positions, corresponding to gaps between the crushing plates, of a center shaft; in the first mode of equipment operation, the crushing effect of internal materials is greatly improved through stirring assemblies arranged on the two sides in the normal crushing and secondary crushing process, and in the second mode of equipment operation, under the condition that the weight of residues on a screen is detected, the crushing degree of the internal materials is greatly increased while the working efficiency is improved, and the working efficiency is improved. In the first state, the process of internal detection of residual special-shaped objects and the detection control process of the second state are realized, so that the better use effect is enhanced.
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Description

Technical Field

[0001] One or more embodiments of the present specification relate to the technical field of crushing equipment, and in particular to a device for crushing materials with abnormal shapes in the production of polyolefin powder. Background Art

[0002] Polyolefins generally refer to a class of thermoplastic resins derived from the polymerization or copolymerization of α-olefins such as ethylene, propylene, 1-butene, 1-pentene, 1-hexene, 1-octene, and 4-methyl-1-pentene, as well as certain cycloolefins. Polyolefins primarily include polyethylene (PE) and polypropylene (PP), but also include poly-1-butene, poly-4-methyl-1-pentene, and cycloolefin polymers. Due to their abundant raw materials, low cost, ease of processing, and excellent overall performance, they are the most widely produced and widely used polymer materials. Polyethylene and polypropylene are the most important. Key varieties include polyethylene and ethylene-based copolymers, such as ethylene-vinyl acetate copolymers and ethylene-acrylic acid or acrylic acid ester copolymers. Polypropylene and certain propylene copolymers, poly-1-butene, poly-4-methyl-1-pentene, and cycloolefin polymers are also included.

[0003] The patent name in the prior art is: Crushing device application number: 2019112902714, which describes that "by setting multiple rows of hammer heads, each row of hammer heads is arranged on the mounting plate along a single spiral direction curve around the central axis of the main shaft. When the main shaft rotates under the drive of the driving member, the hammer heads can not only crush the garbage, but also transport the pulp formed after the garbage is crushed along the first direction, thereby realizing continuous feeding, crushing and transportation, greatly improving the efficiency of crushing and pulping." However, during the operation of the equipment, it is impossible to achieve effective internal control effects and achieve better crushing effects. Summary of the Invention

[0004] In view of this, the purpose of one or more embodiments of this specification is to provide a device for crushing abnormally shaped materials in the production of polyolefin powder, so as to solve the problems of crushing effect and controlling internal operation in the prior art.

[0005] Based on the above objectives, one or more embodiments of this specification provide a device for crushing abnormally shaped materials in the production of polyolefin powder, comprising a main body and a feeding rack installed above the main body, wherein the main body is rotated to the installation center shaft through a sealed bearing, a star-shaped motor is installed at the power end of the main body, and the star-shaped motor is driven by a hydraulic motor, and a hydraulic system is provided at the hydraulic input end of the hydraulic motor, and the hydraulic system is matched with a hydraulic oil tank, and the hydraulic oil tank is disposed in the cabinet of the hydraulic system;

[0006] An inner cavity is provided in the main body, and a plurality of crushing plates for crushing are respectively arranged on both sides of the inner cavity. The crushing plates are in a trapezoidal structure, and corresponding crushing and stirring rods are arranged in the gaps between the crushing plates corresponding to the central axis.

[0007] The crushing and stirring rods are offset in sequence, and the crushing and stirring rods are installed with the central shaft through threads;

[0008] A corresponding discharge port is provided just below the inner cavity, a filter assembly is provided at the discharge port, and a stirring device is provided at the gap corresponding to the crushing plate on the lower surface of the inner wall of the inner cavity.

[0009] Among them, the vibration motor and screen are set at the disassembly port, and a micro load-bearing component is also set according to the weight-bearing condition of the screen, which makes it convenient to screen and judge the residual amount of abnormally shaped materials, thereby facilitating the control of the rotation rate of the crushing component, realizing the control of output energy and reducing energy loss.

[0010] Preferably, a vent pipe is provided on the lower surface of the main body corresponding to the discharge port, and the vent pipe is located directly below the discharge port, and corresponding air jet ports are evenly provided on the upper surface of the vent pipe.

[0011] Preferably, the filter assembly is composed of a screen and a micro vibration motor, the micro vibration motor is located on the side of the screen, and a disassembly opening is provided on the side of the main body corresponding to the screen.

[0012] Preferably, the stirring device is composed of an aeration pump, and a protective layer is laid on the output end of the aeration pump.

[0013] Preferably, the two ends of the central shaft pass through both sides of the main body respectively, and an end is set at one end passing through the main body to protect one end of the central shaft from rotation and danger, and the other end passes through the periphery of the main body to set a mounting frame for convenient installation of the power source; wherein, the power source is a planetary motor.

[0014] Preferably, the crushing and stirring rod is composed of three layers of material, the outer layers on both sides are made of alloy material, and the center layer is made of copper material.

[0015] Preferably, an auxiliary groove is provided on the crushing plate, and a magnet block protruding from the crushing plate is provided near the upper end of the auxiliary groove for absorbing iron impurities and enhancing the crushing effect.

[0016] Preferably, a groove for strengthening stability is provided at one end of the central shaft where the power source is installed.

[0017] Preferably, an inwardly recessed feeding port is provided at the center of the upper surface of the feeding rack, and two sets of auxiliary racks are also provided on the upper surface of the feeding rack; wherein the auxiliary racks are used to install a vibration motor for facilitating feeding.

[0018] From the above description, it can be seen that one or more embodiments of the present specification provide a device for crushing abnormally shaped materials produced from polyolefin powder. During the normal crushing and secondary crushing processes, the stirring components arranged on both sides greatly increase the crushing effect of the internal materials. In the second mode of operation of the equipment, when detecting the weight of the residue on the screen, when the detected weight is too large, the crushing is accelerated, which increases the work efficiency and greatly increases the degree of crushing of the internal materials. When there is less residual material inside, the rotation speed is reduced to save energy and will not greatly affect the output efficiency of the material. The process of internal detection of residual irregular objects is realized in the first state, and the detection and control process in the second state is realized, thereby enhancing its better use effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate one or more embodiments of this specification or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only one or more embodiments of this specification. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0020] Figure 1 This is a schematic diagram of the overall installation structure of the present invention;

[0021] Figure 2 This is a schematic diagram of the three-dimensional structure of the crusher of the present invention;

[0022] Figure 3 This is a schematic diagram of the first cross-sectional structure of the crusher of the present invention;

[0023] Figure 4 For the present invention Figure 2 Schematic diagram of the enlarged structure of area A in the middle;

[0024] Figure 5 The second cross-sectional structural diagram of the crusher of the present invention is

[0025] Figure 6 For the present invention Figure 4 Schematic diagram of the enlarged structure of area A in the middle;

[0026] Figure 7 It is a schematic diagram of the crushing plate structure of the present invention.

[0027] In the figure, 1. Main body; 11. Aeration pump; 12. End; 13. Mounting frame; 14. Crushing plate; 15. Inner cavity; 16. Discharge port; 17. Disassembly port; 18. Auxiliary slot; 19. Vent pipe; 110. Air nozzle; 111. Screen; 2. Feeding rack; 21. Threaded hole; 22. Feeding port; 23. Auxiliary rack; 3. Center axis; 31. Power mounting end; 32. Crushing stirring rod. DETAILED DESCRIPTION

[0028] In order to make the objectives, technical solutions and advantages of the present disclosure more clear, the present disclosure is further described in detail below with reference to specific embodiments.

[0029] It should be noted that, unless otherwise defined, the technical terms or scientific terms used in one or more embodiments of this specification should have the usual meanings understood by people with ordinary skills in the field to which this disclosure belongs. The "first", "second" and similar words used in one or more embodiments of this specification do not indicate any order, quantity or importance, but are only used to distinguish different components. "Include" or "comprise" and similar words mean that the elements or objects appearing before the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects. "Connect" or "connected" and similar words are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative position relationships. When the absolute position of the object being described changes, the relative position relationship may also change accordingly.

[0030] Example 1:

[0031] like Figure 1-6 As shown, a device for crushing abnormally shaped materials in the production of polyolefin powder is provided, comprising a main body 1 and a feeding rack 2 installed above the main body 1. The main body 1 is rotated to install a central shaft 3 through a sealed bearing. A star-shaped motor is installed at the power end of the main body 1, and the star-shaped motor is driven by a hydraulic motor. A hydraulic system is provided at the hydraulic input end of the hydraulic motor, and the hydraulic system is matched with a hydraulic oil tank, which is arranged in a cabinet of the hydraulic system.

[0032] The main body 1 defines an inner cavity 15, and a plurality of crushing plates 14 are provided on both sides of the inner cavity 15 for crushing. The crushing plates 14 are trapezoidal in structure, and corresponding crushing and stirring rods 32 are provided at the gaps between the crushing plates 14 corresponding to the central axis 3.

[0033] The crushing and stirring rods 32 are offset in sequence, and the crushing and stirring rods 32 are installed with the central shaft 3 through threads;

[0034] A corresponding discharge port 16 is provided directly below the inner cavity 15 , and a filter assembly is provided at the discharge port 16 , and a stirring device is provided at the gap between the crushing plate 14 and the lower surface of the inner wall of the inner cavity 15 .

[0035] Among them, after agitation, the auxiliary groove 18 on the cooperating sheet crushing plate 14 allows the material to enter the space above, thereby greatly increasing the effect during crushing.

[0036] The stirring device is composed of an aeration pump 11, and a protective layer is laid on the output end of the aeration pump 11.

[0037] Among them, the explosion pump 11 strengthens the agitation of the internal material in actual work, provides a better implementation environment for repeated crushing of the material, and also makes the internal material collide during the agitation process to facilitate the crushing effect.

[0038] The two ends of the central shaft 3 pass through both sides of the main body 1 respectively, and one end passes through the main body 1 to set an end head, which is used to protect one end of the central shaft 3 to prevent danger caused by rotation, and the other end passes through the periphery of the main body 1 to set a mounting frame 13 for easy installation of the power source; wherein, the power source is a planetary motor.

[0039] Among them, the planetary motor used delivers hydraulic oil through a hydraulic hose to drive the planetary motor to rotate. The use of the planetary motor makes its power output more stable, and the power intensity is stronger than that of the conventional drive motor, so that it can start and run smoothly.

[0040] The crushing and stirring rod 32 is made of three layers of material, with the outer layers on both sides being made of alloy material and the center layer being made of copper material.

[0041] The crushing and stirring rod 32 adopts a three-layer structure, which strengthens the strength of the central copper material and increases its inertial strength during rotation during the crushing process.

[0042] One end of the central shaft 3 where the power source is installed is provided with a groove for strengthening stability.

[0043] The provision of the groove helps to fix it while enhancing the stability of its connection, reducing the risk of separation during power transmission.

[0044] Example 2:

[0045] like Figure 1-6 As shown, a device for crushing abnormally shaped materials in the production of polyolefin powder is provided, comprising a main body 1 and a feeding rack 2 installed above the main body 1. The main body 1 is rotated to install a central shaft 3 through a sealed bearing. A star-shaped motor is installed at the power end of the main body 1, and the star-shaped motor is driven by a hydraulic motor. A hydraulic system is provided at the hydraulic input end of the hydraulic motor, and the hydraulic system is matched with a hydraulic oil tank, which is arranged in a cabinet of the hydraulic system.

[0046] The main body 1 defines an inner cavity 15, and a plurality of crushing plates 14 are provided on both sides of the inner cavity 15 for crushing. The crushing plates 14 are trapezoidal in structure, and corresponding crushing and stirring rods 32 are provided at the gaps between the crushing plates 14 corresponding to the central axis 3.

[0047] The crushing and stirring rods 32 are offset in sequence, and the crushing and stirring rods 32 are installed with the central shaft 3 through threads;

[0048] A corresponding discharge port 16 is provided directly below the inner cavity 15 , and a filter assembly is provided at the discharge port 16 , and a stirring device is provided at the gap between the crushing plate 14 and the lower surface of the inner wall of the inner cavity 15 .

[0049] Among them, after agitation, the auxiliary groove 18 on the cooperating sheet crushing plate 14 allows the material to enter the space above, thereby greatly increasing the effect during crushing.

[0050] The stirring device is composed of an aeration pump 11, and a protective layer is laid on the output end of the aeration pump 11.

[0051] Among them, the explosion pump 11 strengthens the agitation of the internal material in actual work, provides a better implementation environment for repeated crushing of the material, and also makes the internal material collide during the agitation process to facilitate the crushing effect.

[0052] The two ends of the central shaft 3 pass through both sides of the main body 1 respectively, and one end passes through the main body 1 to set an end head, which is used to protect one end of the central shaft 3 to prevent danger caused by rotation, and the other end passes through the periphery of the main body 1 to set a mounting frame 13 for easy installation of the power source; wherein, the power source is a planetary motor.

[0053] Among them, the planetary motor used delivers hydraulic oil through a hydraulic hose to drive the planetary motor to rotate. The use of the planetary motor makes its power output more stable, and the power intensity is stronger than that of the conventional drive motor, so that it can start and run smoothly.

[0054] The crushing and stirring rod 32 is made of three layers of material, with the outer layers on both sides being made of alloy material and the center layer being made of copper material.

[0055] The crushing and stirring rod 32 adopts a three-layer structure, which strengthens the strength of the central copper material and increases its inertial strength during rotation during the crushing process.

[0056] One end of the central shaft 3 where the power source is installed is provided with a groove for strengthening stability.

[0057] The provision of the groove helps to fix it while enhancing the stability of its connection, reducing the risk of separation during power transmission.

[0058] A vent pipe 19 is provided on the lower surface of the main body 1 corresponding to the discharge port 16 , and the vent pipe is located directly below the discharge port 16 , and corresponding air injection ports 110 are evenly provided on the upper surface of the vent pipe 19 .

[0059] The arrangement of the discharge port 16 and the vent pipe 19 enables more effective air jetting, and helps to agitate the material inward during the air jetting process, thereby enhancing the effect of repeated crushing of the material.

[0060] The filter assembly is composed of a screen 111 and a micro vibration motor. The micro vibration motor is located on the side of the screen, and a disassembly port 17 is opened on the side of the main body 1 corresponding to the screen.

[0061] The provision of the disassembly port 17 is helpful for disassembling the micro vibration motor during use, and the provision of the vibration motor is helpful for screening incompletely crushed materials during use.

[0062] Among them, the vibration motor and the screen 111 are set at the disassembly port, and a micro load-bearing component is also set according to the weight-bearing condition of the screen, which makes it convenient to screen and judge the residual amount of abnormally shaped materials, thereby facilitating the control of the rotation rate of the crushing component, realizing the control of output energy and reducing energy loss.

[0063] The crushing plate 14 is provided with an auxiliary groove, and a magnet block protruding from the crushing plate 14 is provided near the upper end of the auxiliary groove for absorbing iron impurities and enhancing the crushing effect.

[0064] Among them, when in use, the crushing plate 14 is set, and a magnet is set on the auxiliary groove to absorb iron impurities, which reduces impurities and reduces the occurrence of uneven cutting of materials during cutting.

[0065] Example 3:

[0066] like Figure 1-6 As shown, a device for crushing abnormally shaped materials in the production of polyolefin powder is provided, comprising a main body 1 and a feeding rack 2 installed above the main body 1. The main body 1 is rotated to install a central shaft 3 through a sealed bearing. A star-shaped motor is installed at the power end of the main body 1, and the star-shaped motor is driven by a hydraulic motor. A hydraulic system is provided at the hydraulic input end of the hydraulic motor, and the hydraulic system is matched with a hydraulic oil tank, which is arranged in a cabinet of the hydraulic system.

[0067] The hydraulic system is connected to the liquid input end of the hydraulic motor through an oil pipe, and the power output end of the star-shaped motor is fixed in the crusher input end.

[0068] The main body 1 defines an inner cavity 15, and a plurality of crushing plates 14 are provided on both sides of the inner cavity 15 for crushing. The crushing plates 14 are trapezoidal in structure, and corresponding crushing and stirring rods 32 are provided at the gaps between the crushing plates 14 corresponding to the central axis 3.

[0069] The crushing and stirring rods 32 are offset in sequence, and the crushing and stirring rods 32 are installed with the central shaft 3 through threads;

[0070] A corresponding discharge port 16 is provided directly below the inner cavity 15 , and a filter assembly is provided at the discharge port 16 , and a stirring device is provided at the gap between the crushing plate 14 and the lower surface of the inner wall of the inner cavity 15 .

[0071] Among them, after agitation, the auxiliary groove 18 on the cooperating sheet crushing plate 14 allows the material to enter the space above, thereby greatly increasing the effect during crushing.

[0072] The stirring device is composed of an aeration pump 11, and a protective layer is laid on the output end of the aeration pump 11.

[0073] Among them, the explosion pump 11 strengthens the agitation of the internal material in actual work, provides a better implementation environment for repeated crushing of the material, and also makes the internal material collide during the agitation process to facilitate the crushing effect.

[0074] The two ends of the central shaft 3 pass through both sides of the main body 1 respectively, and one end passes through the main body 1 to set an end head, which is used to protect one end of the central shaft 3 to prevent danger caused by rotation, and the other end passes through the periphery of the main body 1 to set a mounting frame 13 for easy installation of the power source; wherein, the power source is a planetary motor.

[0075] Among them, the planetary motor used delivers hydraulic oil through a hydraulic hose to drive the planetary motor to rotate. The use of the planetary motor makes its power output more stable, and the power intensity is stronger than that of the conventional drive motor, so that it can start and run smoothly.

[0076] The crushing and stirring rod 32 is made of three layers of material, with the outer layers on both sides being made of alloy material and the center layer being made of copper material.

[0077] The crushing and stirring rod 32 adopts a three-layer structure, which strengthens the strength of the central copper material and increases its inertial strength during rotation during the crushing process.

[0078] One end of the central shaft 3 where the power source is installed is provided with a groove for strengthening stability.

[0079] The provision of the groove helps to fix it while enhancing the stability of its connection, reducing the risk of separation during power transmission.

[0080] A vent pipe 19 is provided on the lower surface of the main body 1 corresponding to the discharge port 16 , and the vent pipe is located directly below the discharge port 16 , and corresponding air injection ports 110 are evenly provided on the upper surface of the vent pipe 19 .

[0081] The arrangement of the discharge port 16 and the vent pipe 19 enables more effective air jetting, and helps to agitate the material inward during the air jetting process, thereby enhancing the effect of repeated crushing of the material.

[0082] The filter assembly is composed of a screen 111 and a micro vibration motor. The micro vibration motor is located on the side of the screen, and a disassembly port 17 is opened on the side of the main body 1 corresponding to the screen.

[0083] The provision of the disassembly port 17 is helpful for disassembling the micro vibration motor during use, and the provision of the vibration motor is helpful for screening incompletely crushed materials during use.

[0084] Among them, the vibration motor and the screen 111 are set at the disassembly port, and a micro load-bearing component is also set according to the weight-bearing condition of the screen, which makes it convenient to screen and judge the residual amount of abnormally shaped materials, thereby facilitating the control of the rotation rate of the crushing component, realizing the control of output energy and reducing energy loss.

[0085] The crushing plate 14 is provided with an auxiliary groove, and a magnet block protruding from the crushing plate 14 is provided near the upper end of the auxiliary groove for absorbing iron impurities and enhancing the crushing effect.

[0086] Among them, when in use, the crushing plate 14 is set, and a magnet is set on the auxiliary groove to absorb iron impurities, which reduces impurities and reduces the occurrence of uneven cutting of materials during cutting.

[0087] An inwardly recessed feeding port 21 is provided at the center of the upper surface of the feeding rack 2 , and two sets of auxiliary racks 23 are also provided on the upper surface of the feeding rack 2 ; wherein the auxiliary racks 23 are used to install a vibration motor for facilitating feeding.

[0088] The addition of a vibration motor helps to facilitate material feeding during use, thereby enhancing the efficiency of material feeding and preventing blockage.

[0089] Working principle: The power source of the equipment comes from the hydraulic system, and the planetary motor drives the crushing device under the drive of the hydraulic system to provide a more stable and extremely high torque at the working speed, especially at low speed conditions. When in use, the material is first put into it through the feeding rack 2, and the vibration motor installed in the feeding rack 2 facilitates its feeding when in use. After entering it, the central shaft 3 is rotated under the drive of the planetary motor to make the material effectively crushed under the action of the crushing plate 4 and the crushing stirring rod 32. When the material enters the lower inner cavity 15, it passes through the screen 111 at the discharge port 16 and the micro vibration motor to complete the crushing or effectively filter the material to the required size, and at each group of materials The material remaining on the screen 111 after processing is abnormal material, and its corresponding weight is obtained. Then the air nozzle 110 is controlled to blow it up and continuously blow air into the interior, so that the abnormal material is crushed for the second time. In the normal crushing and secondary crushing processes, the stirring components arranged on both sides greatly increase the crushing effect of the internal material. In the second mode of operation of the equipment, when the weight of the residue on the screen 111 is detected, when the detected weight is too large, the crushing is accelerated at this time, which increases the work efficiency and greatly increases the crushing degree of the internal material. When there is less residual material inside, the rotation speed is reduced at this time to save energy and will not affect the output efficiency of the material to a large extent.

[0090] Those skilled in the art should understand that the discussion of any of the above embodiments is merely illustrative and is not intended to imply that the scope of the present disclosure (including the claims) is limited to these examples. Based on the concept of the present disclosure, the technical features in the above embodiments or different embodiments may also be combined, and there are many other variations of different aspects of one or more embodiments of this specification as described above, which are not provided in detail for the sake of simplicity.

[0091] While the disclosure has been described in conjunction with specific embodiments thereof, many alternatives, modifications and variations of these embodiments will be apparent to those skilled in the art in light of the foregoing description.

[0092] The one or more embodiments of this specification are intended to cover all such substitutions, modifications, and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of one or more embodiments of this specification shall be included within the scope of protection of this disclosure.

Claims

1. A device for crushing abnormally shaped materials in the production of polyolefin powder, comprising a main body (1) and a feeding rack (2) installed above the main body (1), wherein the main body (1) is rotated to the installation center shaft (3) through a sealed bearing, a star motor is installed at the power end of the main body (1), and the star motor is driven by a hydraulic motor, and a hydraulic system is provided at the hydraulic input end of the hydraulic motor, and the hydraulic system is matched with a hydraulic oil tank, and the hydraulic oil tank is provided in the cabinet of the hydraulic system, characterized in that: An inner cavity (15) is provided in the main body (1), and a plurality of crushing plates (14) for crushing are respectively provided on both sides of the inner cavity (15), the crushing plates (14) are trapezoidal in structure, and corresponding crushing and stirring rods (32) are provided at the gaps between the crushing plates (14) corresponding to the central axis (3); The crushing and stirring rods (32) are offset in sequence, and the crushing and stirring rods (32) are installed with the central shaft (3) through threads; A corresponding discharge port (16) is provided directly below the inner cavity (15), a filter assembly is provided at the discharge port (16), and a stirring device is provided at the gap of the crushing plate (14) corresponding to the lower surface of the inner wall of the inner cavity (15).

2. The device for crushing abnormally shaped materials in polyolefin powder production according to claim 1, characterized in that: A vent pipe (19) is provided on the lower surface of the main body (1) corresponding to the discharge port (16), and the vent pipe is located directly below the discharge port (16), and corresponding air jet ports (110) are evenly provided on the upper surface of the vent pipe (19).

3. The device for crushing abnormally shaped materials in polyolefin powder production according to claim 1, characterized in that: The filter assembly is composed of a screen (111) and a micro vibration motor, the micro vibration motor is located on the side of the screen, and a disassembly opening (17) is provided on the side of the main body (1) corresponding to the screen.

4. The device for crushing abnormally shaped materials in polyolefin powder production according to claim 1, characterized in that: The stirring device is composed of an aeration pump (11), and a protective layer is laid on the output end of the aeration pump (11).

5. The device for crushing abnormally shaped materials in polyolefin powder production according to claim 1, characterized in that: The two ends of the central shaft (3) respectively pass through the two sides of the main body (1), and one end passes through the main body (1) and is provided with an end cap for protecting one end of the central shaft (3) from rotation and causing danger, and the other end passes through the periphery of the main body (1) and is provided with a mounting frame (13) for convenient installation of a power source; Among them, the power source is a planetary motor.

6. The device for crushing abnormally shaped materials in polyolefin powder production according to claim 1, characterized in that: The crushing and stirring rod (32) is made of three layers of material, with the outer layers on both sides being made of alloy material and the center layer being made of copper material.

7. The device for crushing abnormally shaped materials in polyolefin powder production according to claim 1, characterized in that: The crushing plate (14) is provided with an auxiliary groove, and a magnet block protruding from the crushing plate (14) is provided near the upper end of the auxiliary groove for absorbing iron impurities and enhancing the crushing effect.

8. The device for crushing abnormally shaped materials in polyolefin powder production according to claim 3, characterized in that: One end of the central shaft (3) where the power source is installed is provided with a groove for strengthening stability.

9. The device for crushing abnormally shaped materials in polyolefin powder production according to claim 1, characterized in that: A feeding port (21) recessed inwards is provided at the center of the upper surface of the feeding rack (2), and two sets of auxiliary racks (23) are also provided on the upper surface of the feeding rack (2); The auxiliary frame (23) is used to install a vibration motor that is convenient for unloading.