Production and crushing equipment for regenerated rubber powder

By introducing preheating, blowing, discharging and stirring components into the recycled rubber powder production equipment, the problems of equipment wear and high energy consumption are solved, efficient rubber crushing and uniform transportation are achieved, and high-quality rubber powder is produced.

CN120663444APending Publication Date: 2025-09-19SUINING DEWEN REGENERATION PLASTIC TECH CO LTD
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Patent Information

Application Number
CN202510983944.3
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-07-17
Publication Date
2025-09-19

AI Technical Summary

Technical Problem

Existing recycled rubber powder production equipment lacks an efficient pretreatment mechanism, resulting in increased energy consumption and severe equipment wear when waste rubber directly enters the crushing process.

Method used

A crushing equipment including a preheating component, a blowing component, a discharge component and a stirring component is designed. The preheating component uses an electric heating wire to preheat the rubber, the blowing component accelerates softening, the discharge component optimizes material transmission, and the stirring component disperses the material, reduces the toughness of the rubber and transports it evenly, reducing the load on the crushing component.

Benefits of technology

It reduces crushing energy consumption, extends equipment life, improves material uniformity and crushing efficiency, and produces high-quality rubber powder.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention discloses regenerated rubber powder production crushing equipment, and relates to the technical field of resource recycling. Comprising supporting legs and further comprises a smashing assembly, the top of the smashing assembly is fixedly connected with an integrated assembly through a fixing pipe, the integrated assembly comprises a preheating assembly, the bottom of the preheating assembly is fixedly connected with the top of the smashing assembly, and the inner wall of the preheating assembly is fixedly connected with an air blowing assembly; the bottom of the preheating assembly is rotationally connected with a discharging assembly, and the inner wall of the discharging assembly is fixedly connected with a stirring assembly. According to the crushing equipment, the preheating assembly is arranged, the mixing shell serves as the core, the Joule heating effect of the electric heating wire is utilized, waste rubber is preheated to the proper crushing temperature, the preheating duration and the discharging speed of the rubber can be flexibly controlled through an adjusting mechanism composed of a partition plate and a rotating handle, the rubber is easier to crush by preheating and reducing the toughness, and the crushing efficiency is improved. According to the crushing equipment, the purpose of producing the crushing equipment from the regenerated rubber powder is achieved.
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Description

Technical Field

[0001] The invention relates to the technical field of resource recycling, in particular to a regenerated rubber powder production and crushing device. Background Art

[0002] In the field of renewable resource utilization, recycling and converting waste rubber into recycled rubber powder is a key approach to resource recycling. Currently, traditional recycled rubber powder production and crushing equipment generally faces numerous technical bottlenecks. Existing equipment lacks efficient pretreatment mechanisms. Due to the high elasticity and toughness of waste rubber, direct crushing directly into the crushing process not only significantly increases crushing energy consumption but also easily causes excessive wear on the crushing equipment, shortening its service life. Summary of the Invention

[0003] (1) Technical problems solved In view of the shortcomings of the existing technology, the present invention provides a recycled rubber powder production and crushing device, which solves the problem that the existing equipment lacks an efficient pretreatment mechanism.

[0004] To achieve the above objectives, the present invention is implemented through the following technical solutions: A recycled rubber powder production and crushing equipment, including: support legs, and also including: a crushing assembly, the outer wall of the crushing assembly is fixedly connected to the outer wall of the support legs, the top of the crushing assembly is fixedly connected to an integrated assembly through a fixed pipe, the integrated assembly includes a preheating assembly, the bottom of the preheating assembly is fixedly connected to the top of the crushing assembly, the inner wall of the preheating assembly is fixedly connected to a blowing assembly, the bottom of the preheating assembly is rotatably connected to a discharge assembly, the inner wall of the discharge assembly is fixedly connected to a stirring assembly; the crushing assembly includes a fixed shell, the The inner wall of the fixed shell is rotatably connected to the crushing roller through the discharge shell, and the inner wall of the discharge shell is rotatably connected to the outer wall of the crushing roller, the outer wall of the fixed shell is fixedly connected to the stepping motor through the bracket, and the outer wall of the bracket is fixedly connected to the outer wall of the fixed shell; the discharge assembly includes an air outlet shell, the inner wall of the air outlet shell is fixedly connected to the air inlet shell through the air guide inclined tube, and the outer wall of the air guide inclined tube is fixedly connected to the inner wall of the air outlet shell, the inner wall of the air outlet shell is provided with an impeller, the outer wall of the impeller is fixedly connected to the material diverter rack, the material diverter rack consists of a fixed ring and blades, and the blades are arranged in a circular array along the central axis of the fixed ring.

[0005] Preferably, the outer wall of the fixed shell is fixedly connected to the outer wall of the supporting leg, the outer wall of the discharge shell is fixedly connected to the inner wall of the fixed shell, the output end of the stepper motor is fixedly connected to the outer wall of the crushing roller, and two groups of crushing rollers are provided.

[0006] Preferably, the end of the air guide inclined tube away from the air outlet shell is fixedly connected to the inner wall of the air inlet shell, the outer wall of the impeller is fixedly connected with air guide oblique blades, and the air guide oblique blades are arranged in a circular array along the central axis of the impeller.

[0007] Preferably, the preheating assembly includes a mixing shell, a feeding shell is provided on the top of the mixing shell, the inner wall of the mixing shell is rotatably connected to a partition through a rotating shaft, the outer wall of the partition is fixedly connected to a turning handle, the inner wall of the turning handle is slidably connected to a plug, the outer wall of the plug is fixedly connected to a tension spring, the inner wall of the mixing shell is fixedly connected to a heating wire, and the heating wire is connected to an external power supply.

[0008] Preferably, the outer wall of the turning handle is plugged into the outer wall of the mixing shell, the end of the tension spring away from the plug post is fixedly connected to the outer wall of the turning handle, the bottom of the mixing shell is rotatably connected to the top of the impeller, the outer wall of the mixing shell is fixedly connected to the outer wall of the outlet shell, and a slot corresponding to the plug post is opened in the wall of the mixing shell.

[0009] Preferably, the stirring assembly includes a rotating column, the top of the rotating column is fixedly connected to a rotating frame, the top of the rotating frame is fixedly connected to a material-prying piece, and the material-prying piece is arranged in a circular array along the central axis of the rotating frame, the outer wall of the rotating frame is fixedly connected to a prying claw, and the prying claw is arranged in a circular array along the central axis of the rotating frame.

[0010] Preferably, the outer wall of the rotating column is fixedly connected to the inner wall of the material selection rack, the outer wall of the rotating column is fixedly connected to a limiting plate, the outer wall of the rotating column is fixedly connected to the fixed tube at the top of the fixed shell through the bracket, the limiting plate is used to cooperate with the bracket to limit the position of the rotating column, and the top of the fixed shell is fixedly connected to the bottom of the fixed tube.

[0011] Preferably, the blowing assembly includes a blowing shell, the inner wall of the blowing shell is fixedly connected to a blowing pipe, and the blowing pipes are arranged in a circular array along the central axis of the blowing shell, and the inner wall of the bottom of the blowing shell is fixedly connected to an air guide pipe, and the air guide pipes are arranged in a circular array along the central axis of the blowing shell.

[0012] Preferably, the outer wall of the air guide pipe is fixedly connected to a connecting block, the outer wall of the connecting block is fixedly connected to the outer wall of the mixing shell, the top of the mixing shell is fixedly connected to the top of the blowing shell, the top of the blowing shell is fixedly connected to the bottom of the feed shell, and the bottom of the air guide pipe is fixedly connected to the inner wall of the outlet shell.

[0013] The present invention provides a crushing device for producing recycled rubber powder. It has the following beneficial effects: (1) This recycled rubber powder production and crushing equipment is equipped with a preheating component, with a mixing shell as the core, and uses the Joule heat effect of the heating wire to preheat the waste rubber to a suitable crushing temperature. The adjustment mechanism composed of the partition and the handle can flexibly control the preheating time and feeding speed of the rubber. Through preheating, the toughness of the rubber is reduced, making it easier to crush. At the same time, it provides materials with uniform physical properties for the subsequent crushing process, reducing the workload of the crushing component.

[0014] (2) This recycled rubber powder production and crushing equipment is equipped with a blowing component. Based on the Bernoulli principle, a directional airflow channel is constructed through the blowing pipe and the air guide pipe. The high-speed airflow formed performs forced convection heat exchange on the rubber in the preheating component, accelerates the rubber softening process, improves the preheating efficiency, and creates more favorable conditions for the subsequent crushing process.

[0015] (3) This recycled rubber powder production and crushing equipment adopts a pneumatic and electromechanical integrated design by setting a discharge component. The air inlet shell and the air outlet shell form an air flow channel with a Venturi effect through an air guide inclined tube. The air flow drives the impeller to rotate, driving the material feeding rack to push the rubber evenly to the discharge port to avoid material blockage. At the same time, the impeller structure strengthens the air flow guidance, realizes adaptive speed regulation of material transportation, and matches the processing rhythm of the crushing component.

[0016] (4) This recycled rubber powder production and crushing equipment disperses and pre-crushes the block rubber through the composite structure of the material-dispensing sheet and the claw of the stirring component, driven by the material-dispensing frame. This pre-treatment method reduces the material size, improves the material dispersion uniformity, reduces the crushing difficulty of the crushing component, extends the service life of the crushing roller, and ensures that the particle size of the material entering the crushing component is consistent, laying the foundation for the production of high-quality rubber powder. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic structural diagram of the present invention as a whole; Figure 2 is a cross-sectional view of the present invention; Figure 3 This is a schematic structural diagram of the preheating assembly of the present invention; Figure 4 Schematic diagram of the structure of the separator of the present invention; Figure 5 It is a structural schematic diagram of the stirring assembly of the present invention; Figure 6 It is a structural schematic diagram of the discharge assembly of the present invention; Figure 7 Schematic diagram of the structure of the impeller of the present invention; Figure 8 It is a structural schematic diagram of the blowing assembly of the present invention; Figure 9 It is a schematic structural diagram of the crushing assembly of the present invention.

[0018] In the figure: 1. Support leg; 2. Crushing assembly; 3. Preheating assembly; 4. Stirring assembly; 5. Blowing assembly; 6. Discharge assembly; 7. Integrated assembly; 21. Fixed shell; 22. Stepper motor; 23. Discharge shell; 25. Crushing roller; 31. Heating wire; 32. Insert column; 33. Partition; 34. Feed shell; 35. Mixing shell; 36. Tension spring; 37. Turning handle; 41. Diverter piece; 42. Rotating frame; 43. Diverter claw; 44. Rotating column; 45. Limiting piece; 51. Blowing shell; 52. Blowing pipe; 53. Air guide pipe; 54. Connecting block; 61. Outlet shell; 62. Inlet shell; 63. Air guide inclined pipe; 65. Impeller; 66. Diverter frame; 67. Air guide inclined piece. DETAILED DESCRIPTION

[0019] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0020] See also Figure 1-9 The present invention provides a technical solution: a recycled rubber powder production and crushing equipment, comprising: a supporting leg 1, and also comprising: a crushing assembly 2, the outer wall of the crushing assembly 2 is fixedly connected to the outer wall of the supporting leg 1, the top of the crushing assembly 2 is fixedly connected to an integrated assembly 7 through a fixed pipe, the integrated assembly 7 includes a preheating assembly 3, the bottom of the preheating assembly 3 is fixedly connected to the top of the crushing assembly 2, the inner wall of the preheating assembly 3 is fixedly connected to a blowing assembly 5, the bottom of the preheating assembly 3 is rotatably connected to a discharge assembly 6, and the inner wall of the discharge assembly 6 is fixedly connected to a stirring assembly 4; the crushing assembly 2 includes a fixed shell 21, the inner wall of the fixed shell 21 is rotatably connected to a crushing roller 25 through a discharge shell 23, and the inner wall of the discharge shell 23 is rotatably connected to the outer wall of the crushing roller 25 The outer wall of the fixed shell 21 is fixedly connected to the stepper motor 22 through a bracket. The stepper motor 22 transmits torque to the two sets of crushing rollers 25 through belt drive or gear drive. The surface of the crushing rollers 25 is designed with staggered teeth or grooves. When the waste rubber enters the crushing cavity formed by the fixed shell 21 and the discharge shell 23 on the support leg 1, the two sets of crushing rollers 25 rotating in opposite directions use the extrusion force and shear force generated by the differential motion to crush the rubber step by step; the discharge assembly 6 includes an air outlet shell 61, the inner wall of the air outlet shell 61 is fixedly connected to the air inlet shell 62 through an air guide inclined tube 63, and the outer wall of the air guide inclined tube 63 is fixedly connected to the inner wall of the air outlet shell 61, the inner wall of the air outlet shell 61 is provided with an impeller 65, and the outer wall of the impeller 65 is fixedly connected to the material diverter rack 66.

[0021] The outer wall of the fixed shell 21 is fixedly connected to the outer wall of the support leg 1, the outer wall of the discharge shell 23 is fixedly connected to the inner wall of the fixed shell 21, the output end of the stepper motor 22 is fixedly connected to the outer wall of the crushing roller 25, and two groups of crushing rollers 25 are provided. The end of the air guide inclined tube 63 away from the air outlet shell 61 is fixedly connected to the inner wall of the air inlet shell 62, and the outer wall of the impeller 65 is fixedly connected with the air guide oblique plate 67, and the air guide oblique plate 67 is arranged in a circular array along the central axis of the impeller 65.

[0022] The preheating component 3 includes a mixing shell 35, a feeding shell 34 is provided on the top of the mixing shell 35, and after the waste rubber enters the mixing shell 35 through the feeding shell 34, the heating wire 31 is energized to generate heat, and a high-temperature environment is formed inside the mixing shell 35 through heat conduction and heat convection. The inner wall of the mixing shell 35 is connected to the partition 33 through the rotating shaft, and the outer wall of the partition 33 is fixedly connected to the turning handle 37. The inner wall of the turning handle 37 is slidably connected to the plug post 32, and the outer wall of the plug post 32 is fixedly connected to the tension spring 36. The inner wall of the mixing shell 35 is fixedly connected to the heating wire 31, and the outer wall of the turning handle 37 is connected to the outer wall of the mixing shell 35. The end of the tension spring 36 away from the plug post 32 is fixedly connected to the outer wall of the handle 37. The operator overcomes the elastic force of the tension spring 36 by pulling the plug post 32, and rotates the handle 37 to drive the partition 33 to rotate, thereby changing the cross-sectional area of ​​the material channel formed by the partition 33 and the inner wall of the mixing shell 35, thereby controlling the preheating time and feeding speed of the rubber. The elastic reset characteristic of the tension spring 36 ensures that the partition 33 stably maintains the set position after adjustment, avoiding position deviation caused by vibration. The bottom of the mixing shell 35 is rotatably connected to the top of the impeller 65, and the outer wall of the mixing shell 35 is fixedly connected to the outer wall of the outlet shell 61.

[0023] The stirring assembly 4 includes a rotating column 44, the top of the rotating column 44 is fixedly connected to the rotating frame 42, the top of the rotating frame 42 is fixedly connected to the material-diverting piece 41, and the material-diverting piece 41 is arranged in a circular array along the central axis of the rotating frame 42, the outer wall of the rotating frame 42 is fixedly connected to the finger 43, and the finger 43 is arranged in a circular array along the central axis of the rotating frame 42, the outer wall of the rotating column 44 is fixedly connected to the inner wall of the material-diverting frame 66, when the material-diverting frame 66 rotates under the drive of the impeller 65, the rotating column 44 is driven to rotate synchronously, and the rotating frame 42 is fixedly connected to the material-diverting piece 41. The prying pieces 41 and prying claws 43 distributed in a circular array form a composite stirring structure: the prying pieces 41 use the centrifugal force generated by rotation to throw the accumulated rubber outward, expand the contact area between the material and the airflow, and improve the preheating efficiency; the prying claws 43 use mechanical stirring force to disperse the block rubber, prevent sticking, reduce the size of the material entering the crushing assembly 2, and reduce the load on the crushing assembly 2. The outer wall of the rotating column 44 is fixedly connected to the limit plate 45, and the outer wall of the rotating column 44 is fixedly connected to the fixed tube on the top of the fixed shell 21 through a bracket.

[0024] The blowing assembly 5 includes a blowing shell 51, the inner wall of the blowing shell 51 is fixedly connected to the blowing pipe 52, and the blowing pipe 52 is arranged in a circular array along the central axis of the blowing shell 51, the inner wall of the bottom of the blowing shell 51 is fixedly connected to the air guide pipe 53, and the air guide pipe 53 is arranged in a circular array along the central axis of the blowing shell 51, the outer wall of the air guide pipe 53 is fixedly connected to the connecting block 54, the outer wall of the connecting block 54 is fixedly connected to the outer wall of the mixing shell 35, and the top of the mixing shell 35 is fixedly connected to the top of the blowing shell 51, through The air blowing pipe 52 introduces the air at the bottom into the air blowing shell 51. The air blowing pipes 52 and the air guide pipes 53 arranged in a ring array form a directional airflow channel. After the air is accelerated into the air blowing shell 51 through the air blowing pipe 52, a downward high-speed airflow is formed under the guidance of the air guide pipe 53 on the connecting block 54. On the one hand, this airflow performs forced convection heat exchange on the rubber in the preheating component 3, accelerating the softening of the rubber. The top of the air blowing shell 51 is fixedly connected to the bottom of the feed shell 34, and the bottom of the air guide pipe 53 is fixedly connected to the inner wall of the outlet shell 61.

[0025] When using, This recycled rubber powder production and crushing equipment is based on the principles of mechanical transmission and thermodynamics. Through the coordinated operation of various components, it realizes the whole process of waste rubber processing from preheating and softening to fine crushing. Its core lies in optimizing the material transmission path through the integrated component 7 design and using air flow drive and mechanical stirring to improve crushing efficiency. The following is a detailed analysis from the component function level.

[0026] The preheating component 3 uses the mixing shell 35 as the core carrier and relies on the Joule heating effect of the heating wire 31 to achieve rubber preheating. After the waste rubber enters the mixing shell 35 through the feed shell 34, the heating wire 31 is energized to generate heat, and a high-temperature environment is formed inside the mixing shell 35 through heat conduction and heat convection. The adjustment mechanism composed of the partition 33 and the handle 37 adopts the mechanical limit principle. The operator overcomes the elastic force of the tension spring 36 by pulling the plug 32, and rotates the handle 37 to drive the partition 33 to rotate, changing the cross-sectional area of ​​the material channel formed by the partition 33 and the inner wall of the mixing shell 35, thereby controlling the preheating time and feeding speed of the rubber. The elastic reset characteristics of the tension spring 36 ensure that the partition 33 stably maintains the set position after adjustment, avoiding position deviation caused by vibration, and providing pretreated materials with uniform physical properties for the subsequent crushing process.

[0027] The blowing assembly 5 utilizes the Bernoulli principle in fluid mechanics to introduce air from the bottom into the blowing shell 51 through the blowing pipe 52. The blowing pipes 52 and the air guide pipes 53 arranged in a circular array form a directional airflow channel. After the air is accelerated into the blowing shell 51 through the blowing pipe 52, it forms a downward high-speed airflow under the guidance of the air guide pipe 53 on the connecting block 54. On the one hand, this airflow performs forced convection heat exchange on the rubber in the preheating assembly 3, accelerating the softening of the rubber.

[0028] The discharge assembly 6 adopts a pneumatic and electromechanical integrated design. The air inlet shell 62 and the air outlet shell 61 are connected by an air guide inclined pipe 63 to form an air flow channel with a Venturi effect. When the high-speed air flow enters the air inlet shell 62 from the pipe, the air flow is accelerated at the throat of the air guide inclined pipe 63 and continuously blows on the air guide vanes 67 of the impeller 65, thereby driving the impeller 65 to rotate. The air guide vanes 67 on the outer wall of the impeller 65 are distributed in a spiral array, which converts the kinetic energy of the air flow into the rotational mechanical energy of the impeller 65 and strengthens the guiding effect of the air flow. The material shifting rack 66 fixed coaxially with the impeller 65 rotates with the impeller 65, and uses centrifugal force and mechanical shifting force to evenly push the rubber in the mixing shell 35 to the discharge port. This design not only avoids the common material blockage problem of traditional mechanical conveying, but also can automatically adjust the conveying speed according to the rubber bulk density, thereby achieving precise matching with the crushing assembly 2.

[0029] The stirring assembly 4 realizes the dispersion and pre-crushing of materials through mechanical transmission. The rotating column 44 is fixedly connected to the material-dispensing frame 66. When the material-dispensing frame 66 rotates under the drive of the impeller 65, the rotating column 44 is driven to rotate synchronously. The material-dispensing pieces 41 and the finger claws 43 distributed in a ring array on the rotating frame 42 constitute a composite stirring structure: the material-dispensing piece 41 throws the accumulated rubber outward through the centrifugal force generated by the rotation, expands the contact area between the material and the airflow, and improves the preheating efficiency; the finger claws 43 use mechanical stirring force to disperse the block rubber, prevent sticking, reduce the size of the material entering the crushing assembly 2, and reduce the load of the crushing assembly 2. The limit piece 45 cooperates with the fixed bracket to constrain the axial displacement of the rotating column 44, thereby ensuring the stability of the operation of the stirring assembly 4.

[0030] The crushing assembly 2 is based on the double-roller extrusion crushing principle. The stepper motor 22 transmits torque to two sets of crushing rollers 25 through belt drive or gear drive. The surface of the crushing rollers 25 is designed with staggered teeth or grooves. When the waste rubber enters the crushing cavity formed by the fixed shell 21 and the discharge shell 23 on the support leg 1, the two sets of crushing rollers 25 rotating in opposite directions use the extrusion force and shear force generated by the differential motion to crush the rubber step by step.

[0031] The equipment has a full-process design that uses the preheating component 3 to soften and reduce the rubber toughness, the blowing component 5 and the discharge component 6 to coordinately optimize material transmission, the stirring component 4 to assist in pretreatment, and the crushing component 2 to achieve fine processing, thereby improving the production efficiency and product quality of recycled rubber powder. Its multi-component collaborative working mechanism provides an innovative solution for the resource utilization of waste rubber.

[0032] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or device. In the absence of further limitations, an element defined by the phrase "comprising a..." does not exclude the presence of additional identical elements in the process, method, article, or device comprising the element.

[0033] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A crushing device for producing recycled rubber powder, comprising: The supporting leg (1) is characterized in that it further comprises: a crushing assembly (2), the outer wall of the crushing assembly (2) is fixedly connected to the outer wall of the supporting leg (1), the top of the crushing assembly (2) is fixedly connected to an integrated assembly (7) via a fixed pipe, the integrated assembly (7) comprises a preheating assembly (3), the bottom of the preheating assembly (3) is fixedly connected to the top of the crushing assembly (2), the inner wall of the preheating assembly (3) is fixedly connected to a blowing assembly (5), the bottom of the preheating assembly (3) is rotatably connected to a discharge assembly (6), and the inner wall of the discharge assembly (6) is fixedly connected to a stirring assembly (4); The crushing assembly (2) includes a fixed shell (21), the inner wall of the fixed shell (21) is rotatably connected to a crushing roller (25) via a discharge shell (23), and the inner wall of the discharge shell (23) is rotatably connected to the outer wall of the crushing roller (25), and the outer wall of the fixed shell (21) is fixedly connected to a stepping motor (22) via a bracket; The discharge assembly (6) comprises an air outlet housing (61), the inner wall of the air outlet housing (61) being fixedly connected to the air inlet housing (62) via an air guide inclined tube (63), and the outer wall of the air guide inclined tube (63) being fixedly connected to the inner wall of the air outlet housing (61), the inner wall of the air outlet housing (61) being provided with an impeller (65), and the outer wall of the impeller (65) being fixedly connected to a material discharging rack 66.

2. The reclaimed rubber powder production and crushing equipment according to claim 1, characterized in that: The outer wall of the fixed shell (21) is fixedly connected to the outer wall of the support leg (1), the outer wall of the discharge shell (23) is fixedly connected to the inner wall of the fixed shell (21), and the output end of the stepper motor (22) is fixedly connected to the outer wall of the crushing roller (25), and two groups of crushing rollers (25) are provided.

3. The reclaimed rubber powder production and crushing equipment according to claim 1, characterized in that: One end of the air guide inclined tube (63) away from the air outlet housing (61) is fixedly connected to the inner wall of the air inlet housing (62); the outer wall of the impeller (65) is fixedly connected with an air guide inclined plate (67), and the air guide inclined plates (67) are arranged in a circular array along the central axis of the impeller (65).

4. The reclaimed rubber powder production and crushing equipment according to claim 1, characterized in that: The preheating assembly (3) comprises a mixing shell (35), a feeding shell (34) is provided on the top of the mixing shell (35), the inner wall of the mixing shell (35) is rotatably connected to a partition (33) via a rotating shaft, the outer wall of the partition (33) is fixedly connected to a turning handle (37), the inner wall of the turning handle (37) is slidably connected to a plug post (32), the outer wall of the plug post (32) is fixedly connected to a tension spring (36), and the inner wall of the mixing shell (35) is fixedly connected to a heating wire (31).

5. The reclaimed rubber powder production and crushing equipment according to claim 4, characterized in that: The outer wall of the turning handle (37) is plugged into the outer wall of the mixing shell (35), and the end of the tension spring (36) away from the plug post (32) is fixedly connected to the outer wall of the turning handle (37). The bottom of the mixing shell (35) is rotatably connected to the top of the impeller (65), and the outer wall of the mixing shell (35) is fixedly connected to the outer wall of the outlet shell (61).

6. The reclaimed rubber powder production and crushing equipment according to claim 1, characterized in that: The stirring assembly (4) comprises a rotating column (44), the top of the rotating column (44) is fixedly connected to a rotating frame (42), the top of the rotating frame (42) is fixedly connected to a material-prying piece (41), and the material-prying piece (41) is arranged in a circular array along the central axis of the rotating frame (42), and the outer wall of the rotating frame (42) is fixedly connected to a finger (43), and the finger (43) is arranged in a circular array along the central axis of the rotating frame (42).

7. The reclaimed rubber powder production and crushing equipment according to claim 6, characterized in that: The outer wall of the rotating column (44) is fixedly connected to the inner wall of the material shifting frame (66), the outer wall of the rotating column (44) is fixedly connected to the limiting plate (45), and the outer wall of the rotating column (44) is fixedly connected to the fixed tube at the top of the fixed shell (21) through a bracket.

8. The reclaimed rubber powder production and crushing equipment according to claim 1, characterized in that: The blowing assembly (5) comprises a blowing shell (51), an inner wall of the blowing shell (51) is fixedly connected to an air blowing pipe (52), and the air blowing pipe (52) is arranged in a circular array along the central axis of the blowing shell (51), and an inner wall of the bottom of the blowing shell (51) is fixedly connected to an air guide pipe (53), and the air guide pipe (53) is arranged in a circular array along the central axis of the blowing shell (51).

9. The reclaimed rubber powder production and crushing equipment according to claim 8, characterized in that: The outer wall of the air guide pipe (53) is fixedly connected to a connecting block (54), the outer wall of the connecting block (54) is fixedly connected to the outer wall of the mixing shell (35), the top of the mixing shell (35) is fixedly connected to the top of the blowing shell (51), the top of the blowing shell (51) is fixedly connected to the bottom of the feed shell (34), and the bottom of the air guide pipe (53) is fixedly connected to the inner wall of the outlet shell (61).