A mixing and stirring device for rubber asphalt processing

Abstract

The invention discloses a mixing and stirring device for rubber asphalt processing, relates to the technical field of rubber asphalt processing, solves the problem that rubber powder will adhere to the pipe mouth of a conduit due to water vapor agglomeration, resulting in a smaller diameter at the pipe mouth of the conduit, thereby affecting the normal feeding of a hopper, comprises a mixing tank, a hopper is installed on the upper side of the mixing tank, a material guide pipe connected with the hopper is fixedly installed at the lower end of the hopper, and a solenoid valve is installed on the material guide pipe, two symmetrically distributed motors are fixedly installed at the upper end of the mixing tank, and a stirring shaft is fixedly connected to the driving end of the motor; the invention installs a cleaning component, and the stirring shaft drives the first gear ring and the scraper bar in the cleaning component to rotate through the second gear ring, and the scraper bar can scrape off the water vapor attached to the inner wall of the discharge pipe during the process of rotating in contact with the inner wall of the discharge pipe, thereby effectively preventing the rubber powder from adhering to the pipe mouth of the discharge pipe due to water vapor agglomeration, thereby affecting the feeding of the discharge pipe.

Description

Technical Field

[0001] The invention relates to the technical field of rubber asphalt processing, in particular to a mixing and stirring device for rubber asphalt processing. Background Art

[0002] Rubber asphalt is a new type of high-quality composite material made by adding rubber powder made from waste tires as a modifier to base asphalt in a special equipment through a series of processes such as high temperature, additives and shear mixing. Rubber asphalt has good aging resistance, high temperature stability, low temperature flexibility, water damage resistance and fatigue resistance. These characteristics make rubber asphalt pavement have the same elasticity and recovery ability as rubber at high temperatures, and improve the road's deformation resistance and fatigue resistance. In addition, rubber asphalt also has good high and low temperature performance, reduces the sensitivity of asphalt to temperature, and reduces temperature cracks in the road surface.

[0003] During the mixing process of rubber asphalt, the asphalt needs to be heated to a suitable temperature first, and then the rubber powder is gradually added to the mixer. During this process, the rubber powder generally enters the mixing tank through the hopper and the conduit. However, since water evaporates during the heating process of the asphalt, some water vapor will adhere to the pipe mouth of the hopper conduit. When the rubber powder enters the mixing tank through the conduit, the rubber powder will agglomerate and adhere to the pipe mouth of the conduit due to water vapor, resulting in a smaller diameter at the pipe mouth of the conduit, thereby affecting the normal feeding of the hopper. Summary of the invention

[0004] The object of the present invention is to provide a mixing and stirring device for rubber asphalt processing to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a mixing and stirring device for rubber asphalt processing, comprising a mixing tank, a hopper is installed on the upper side of the mixing tank, a guide pipe connected to the hopper is fixedly installed at the lower end of the hopper, and a solenoid valve is installed on the guide pipe, two symmetrically distributed motors are fixedly installed at the upper end of the mixing tank, a stirring shaft is fixedly connected to the driving end of the motor, and the stirring shaft is located inside the mixing tank, and also includes: an annular guide trough fixedly installed at the upper end of the mixing tank and located outside the motor, a plurality of discharge pipes equidistantly distributed around the circumference are fixedly installed at the lower end of the annular guide trough, and the discharge pipe runs through the mixing tank; a cleaning component for cleaning water vapor attached to the lower end of the discharge pipe, the cleaning component is installed on the outside of the discharge pipe; a pushing component for pushing rubber powder to move inside the annular guide trough, the pushing component is installed inside the annular guide trough.

[0006] Preferably, the cleaning assembly includes a sleeve movably sleeved on the outside of the discharge pipe, two symmetrically distributed bent connecting rods are fixedly installed on the inner wall of the sleeve, a scraper strip is fixedly embedded on the outer side of the bent connecting rod, and the scraper strip is movably fitted to the inner wall of the discharge pipe.

[0007] Preferably, a first gear ring is fixedly sleeved on the outer side of the sleeve near its lower end, a second gear ring is co-installed on the outer side of the first gear ring, and the second gear ring is concentric with the stirring shaft, a plurality of connecting rods equidistantly distributed around the circumference are fixedly installed on the inner wall of the second gear ring, and one end of the connecting rod away from the second gear ring is fixedly connected to the stirring shaft.

[0008] Preferably, a connecting assembly is installed between the sleeve and the discharge pipe, and the connecting assembly includes a positioning plate movably sleeved on the outside of the discharge pipe, and the positioning plate is fixedly connected to the mixing tank, the upper end of the sleeve is fixedly connected to a support plate, and the support plate is movably sleeved on the outside of the discharge pipe, and a spring is fixedly installed on the lower end of the support plate, and the positioning plate and the support plate are both in the shape of a circular ring.

[0009] Preferably, the lower end of the spring is fixedly connected to a washer, and the spring and the washer are movably sleeved on the outside of the sleeve, the outsides of the sleeve, the spring and the washer are movably sleeved with a sleeve, and the upper end of the sleeve is fixedly connected to the positioning plate, and the lower end surface of the washer is movably fitted with the sleeve.

[0010] Preferably, a plurality of circumferentially equidistantly distributed baffles are fixedly mounted on the lower end of the positioning plate corresponding to the inner side of the sleeve, and two symmetrically distributed hemispheres are fixedly mounted on the upper end of the support plate, and the connection between the hemispheres and the baffles is sliding contact.

[0011] Preferably, the pushing assembly includes a plurality of pushing plates movably mounted inside the annular material guide groove, and the plurality of pushing plates are equidistantly distributed circumferentially, the upper ends of the plurality of pushing plates are fixedly connected with a third gear ring, a plurality of balls equidistantly distributed circumferentially are movably embedded in the annular rolling groove of the third gear ring, and the plurality of balls are movably embedded on the inner wall of the annular material guide groove, a gear is cooperatively mounted on the outer side of the third gear ring, and a first positioning shaft is fixedly embedded at the center of the upper end of the gear.

[0012] Preferably, the upper end of the first positioning shaft is fixedly connected to the outer side of the annular material guide groove corresponding to the first toothed guide wheel, the outer side of the stirring shaft is fixedly sleeved with a second toothed guide wheel, and the upper side of the annular material guide groove is also provided with a third toothed guide wheel, and the third toothed guide wheel is rotatably connected to the annular material guide groove through the second positioning shaft, and the outer sides of the first toothed guide wheel, the second toothed guide wheel and the third toothed guide wheel are cooperated with the installation of synchronous toothed belts.

[0013] Preferably, the guide pipe is shaped like an inverted Y-shape, and the two auxiliary pipes of the guide pipe are movably embedded in the upper ends of the two annular guide grooves respectively, and the main pipe and the auxiliary pipe of the guide pipe are provided with telescopic parts. A driving assembly is installed between the third toothed guide wheel and the guide pipe, and the driving assembly includes a plurality of arc-shaped driving blocks fixedly installed on the upper end of the third toothed guide wheel, and the plurality of arc-shaped driving blocks are equidistantly distributed around the circumference.

[0014] Preferably, the arc-shaped driving block is provided with an arc edge portion and a vertical portion, a bent top rod is fixedly installed on the outer side of the material guide tube, a bead is movably embedded in the lower end of the bent top rod, and the bead is in rolling contact with the arc-shaped driving block through the arc edge portion of the arc-shaped driving block.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. The present invention installs a cleaning assembly, and the stirring shaft drives the first gear ring and the scraper bar in the cleaning assembly to rotate through the second gear ring. The scraper bar can scrape off the water vapor attached to the inner wall of the discharge pipe during its rotation in contact with the inner wall of the discharge pipe, thereby effectively preventing the rubber powder from agglomerating and adhering to the pipe mouth of the discharge pipe due to the water vapor, thereby affecting the feeding of the discharge pipe.

[0017] 2. The present invention arranges a baffle and a hemisphere in the connecting assembly. The hemisphere slides in contact with a plurality of baffles as the sleeve rotates. Driven by the compression force of the spring, the sleeve and the scraper generate continuous vibration during the up and down reciprocating movement. On the one hand, it is beneficial to shake off the water vapor or rubber powder attached to the scraper. On the other hand, it is beneficial to quickly discharge the rubber powder from the discharge pipe to prevent the rubber powder from being blocked in the discharge pipe.

[0018] 3. The present invention installs a pusher assembly, and multiple pusher plates in the pusher assembly rotate inside the annular guide groove, which can push the rubber powder into the mixing tank through different discharge pipes, thereby helping to expand the distribution range of the rubber powder in the mixing tank, helping to quickly and evenly mix the rubber powder with asphalt, and improving the mixing efficiency of rubber asphalt.

[0019] 4. The present invention installs a driving assembly, and the multiple arc-shaped driving blocks in the driving assembly can drive the guide tube to move upward by bending the top rod during the rotation of the third toothed guide wheel. In combination with the gravity of the guide tube itself, the guide tube can be reciprocated up and down during the process of conveying rubber powder by the guide tube, thereby facilitating the rubber powder in the guide tube to quickly enter the annular guide groove. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0021] Figure 2 It is a rear side schematic diagram of the connection state of the hopper, the annular guide trough and the mixing tank of the present invention;

[0022] Figure 3 It is a schematic diagram of the side section structure of the mixing tank of the present invention;

[0023] Figure 4 It is a bottom side schematic diagram of the connection state of the annular material guide trough, the stirring shaft, the cleaning component and the connecting component of the present invention;

[0024] Figure 5 This is a schematic diagram of the cross-sectional structure of the annular material guide trough of the present invention;

[0025] Figure 6 It is a schematic diagram of the side section structure of the connection of the discharge pipe, the cleaning assembly and the connecting assembly of the present invention;

[0026] Figure 7 It is a schematic diagram of the side section structure of the connection between the discharge pipe, the cleaning assembly and the connecting assembly of the present invention;

[0027] Figure 8 It is a schematic diagram of the connection state between the driving assembly and the material guide pipe of the present invention.

[0028] In the figure: 1, mixing tank; 2, hopper; 3, guide pipe; 4, motor; 5, stirring shaft; 6, annular guide trough; 7, discharge pipe; 8, sleeve; 9, bent connecting rod; 10, scraper; 11, embedded beads; 12, first gear ring; 13, second gear ring; 14, connecting rod; 15, positioning plate; 16, support plate; 17, spring; 18, gasket; 19, sleeve; 20, stop bar; 21, hemisphere; 22, push plate; 23, third gear ring; 24, gear; 25, first positioning shaft; 26, first toothed guide wheel; 27, second toothed guide wheel; 28, telescopic part; 29, third toothed guide wheel; 30, second positioning shaft; 31, arc driving block; 32, bent top rod. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. 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 creative work are within the scope of protection of the present invention.

[0030] Example 1: Please refer to Figure 1-Figure 4 , Figure 6 , Figure 7A mixing and stirring device for rubber asphalt processing shown in the figure includes a mixing tank 1, a hopper 2 is installed on the upper side of the mixing tank 1, the hopper 2 is used to store rubber powder, a guide pipe 3 connected to the hopper 2 is fixedly installed at the lower end of the hopper 2, and a solenoid valve is installed on the guide pipe 3, the solenoid valve is used to control the flow of the guide pipe 3, the guide pipe 3 is used to discharge the rubber powder in the hopper 2, two symmetrically distributed motors 4 are fixedly installed on the upper end of the mixing tank 1, the motor 4 is fixedly connected to the mixing tank 1 through a fixed bracket, the driving end of the motor 4 is fixedly connected to a stirring shaft 5, and the stirring shaft 5 is located inside the mixing tank 1, the motor The machine 4 drives the stirring shaft 5 to rotate, and can stir the asphalt and rubber powder in the mixing tank 1. It also includes: an annular material guide trough 6 fixedly installed at the upper end of the mixing tank 1 and located on the outside of the motor 4, and a plurality of discharge pipes 7 equidistantly distributed in a circle are fixedly installed at the lower end of the annular material guide trough 6. The hopper 2 conveys the rubber powder to the two annular material guide troughs 6 through the material guide pipes 3. The annular material guide trough 6 conveys the rubber powder to the mixing tank 1 through the plurality of discharge pipes 7, and the discharge pipes 7 penetrate the mixing tank 1; a cleaning component, used to clean the water vapor attached to the lower end of the discharge pipe 7, and the cleaning component is installed on the outside of the discharge pipe 7.

[0031] The cleaning assembly includes a sleeve 8 movably sleeved on the outside of the discharge pipe 7, and two symmetrically distributed bent connecting rods 9 are fixedly installed on the inner wall of the sleeve 8. The cross-sectional shape of the bent connecting rod 9 is circular, and a hemispherical portion is provided at the upper end of the bent connecting rod 9, which can prevent rubber powder from accumulating on the bent connecting rod 9. A scraper strip 10 is fixedly embedded on the outside of the bent connecting rod 9, and the scraper strip 10 is movably fitted with the inner wall of the discharge pipe 7.

[0032] A first gear ring 12 is fixedly sleeved on the outer side of the sleeve 8 near its lower end, and a second gear ring 13 is installed on the outer side of the first gear ring 12, and the second gear ring 13 is concentric with the stirring shaft 5. A plurality of connecting rods 14 equidistantly distributed around the circumference are fixedly installed on the inner wall of the second gear ring 13, and one end of the connecting rod 14 away from the second gear ring 13 is fixedly connected to the stirring shaft 5. When the stirring shaft 5 drives the second gear ring 13 to rotate through the connecting rod 14, the second gear ring 13 drives the scraper 10 to rotate in contact with the inner wall of the discharge pipe 7 through the first gear ring 12, the sleeve 8 and the bent connecting rod 9.

[0033] A connecting assembly is installed between the sleeve 8 and the discharge pipe 7, and the connecting assembly includes a positioning plate 15 movably sleeved on the outside of the discharge pipe 7, and the positioning plate 15 is fixedly connected to the mixing tank 1, and the upper end of the sleeve 8 is fixedly connected to a support plate 16, and the support plate 16 is movably sleeved on the outside of the discharge pipe 7, and a spring 17 is fixedly installed on the lower end of the support plate 16, and the positioning plate 15 and the support plate 16 are both in the shape of a circular ring.

[0034] The lower end of the spring 17 is fixedly connected to a washer 18, and the spring 17 and the washer 18 are movably sleeved on the outside of the sleeve 8. The outer sides of the sleeve 8, the spring 17 and the washer 18 are movably sleeved with a sleeve 19, and the upper end of the sleeve 19 is fixedly connected to the positioning plate 15. The lower end surface of the washer 18 is movably fitted with the sleeve 19. The washer 18 can prevent the spring 17 from directly deforming due to friction with the sleeve 19. The spring 17 can drive the sleeve 8 and the scraper strip 10 to move upward through the sleeve 19, the washer 18 and the support plate 16.

[0035] Example 2: Please refer to Figure 6 , Figure 7 This embodiment further explains Example 1. The lower end of the positioning plate 15 corresponds to the inner side of the sleeve 19 and is fixedly installed with a plurality of circumferentially equidistantly distributed baffles 20. The positioning plate 15 is used to position the sleeve 19 and the baffles 20. The upper end of the support plate 16 is fixedly installed with two symmetrically distributed hemispherical bodies 21, and the connection between the hemispherical bodies 21 and the baffles 20 is a sliding contact. The plurality of baffles 20 can drive the sleeve 8 and the scraper strip 10 to move downward through the hemispherical bodies 21.

[0036] Example 3: Please refer to Figure 2 , Figure 5 , Figure 8 The present embodiment further illustrates the second embodiment, that the pusher assembly is used to push the rubber powder to move inside the annular guide groove 6. The cross-sectional shape of the lower end of the annular guide groove 6 is V-shaped, which is conducive to the rubber powder entering the discharge pipe 7. The pusher assembly is installed inside the annular guide groove 6. The pusher assembly includes a plurality of pusher plates 22 movably installed inside the annular guide groove 6, and the plurality of pusher plates 22 are equidistantly distributed around the circumference. The pusher plates 22 are made of plastic. The upper ends of the plurality of pusher plates 22 are fixedly connected to a third toothed ring 23. The inner wall of the third toothed ring 23 is provided with an annular rolling groove. The third toothed ring A plurality of ball bearings equidistantly distributed around the circumference are movably embedded in the annular rolling groove 23, and the plurality of ball bearings are movably embedded on the inner wall of the annular guide groove 6. The ball bearings can position the third gear ring 23 through the annular rolling groove, and can reduce the friction resistance between the third gear ring 23 and the annular guide groove 6. A gear 24 is mounted on the outer side of the third gear ring 23, and a first positioning shaft 25 is fixedly embedded at the center of the upper end of the gear 24. The first positioning shaft 25 is used to position the gear 24. The rotation of the gear 24 can drive the plurality of push plates 22 to rotate in the annular guide groove 6 through the third gear ring 23.

[0037] The upper end of the first positioning shaft 25 is fixedly connected to the outer side of the annular guide groove 6 with a first toothed guide wheel 26, and the outer side of the stirring shaft 5 is fixedly sleeved with a second toothed guide wheel 27. A third toothed guide wheel 29 is also installed on the upper side of the annular guide groove 6, and the third toothed guide wheel 29 is rotatably connected to the annular guide groove 6 through the second positioning shaft 30. The first positioning shaft 25 and the second positioning shaft 30 both penetrate the annular guide groove 6, and are rotatably connected to the annular guide groove 6 through bearings. Synchronous toothed belts are installed on the outer sides of the first toothed guide wheel 26, the second toothed guide wheel 27 and the third toothed guide wheel 29, and the second toothed guide wheel 27 can drive the first toothed guide wheel 26 and the second toothed guide wheel 27 to rotate through the synchronous toothed belt.

[0038] Example 4: Please refer to Figure 8 This embodiment further explains the first embodiment. The shape of the guide pipe 3 is an inverted Y shape. The two auxiliary pipes of the guide pipe 3 are movably embedded in the upper ends of the two annular guide grooves 6, respectively, so that the guide pipe 3 can be prevented from being skewed. The main pipe and the auxiliary pipe of the guide pipe 3 are both provided with a telescopic portion 28. The telescopic portion 28 facilitates the reciprocating movement of the guide pipe 3 up and down. A driving assembly is installed between the third toothed guide wheel 29 and the guide pipe 3. The driving assembly includes a plurality of arc-shaped driving blocks 31 fixedly installed on the upper end of the third toothed guide wheel 29, and the plurality of arc-shaped driving blocks 31 are equidistantly distributed around the circumference.

[0039] The arc driving block 31 is provided with an arc edge portion and a vertical portion. A bending push rod 32 is fixedly installed on the outer side of the guide tube 3. An embedded bead 11 is movably embedded in the lower end of the bending push rod 32, and the embedded bead 11 is in rolling contact with the arc driving block 31 through the arc edge portion of the arc driving block 31. The arc driving block 31 can drive the bending push rod 32 and the guide tube 3 to move upward through the arc edge portion. The embedded bead 11 is used to reduce the friction resistance between the bending push rod 32 and the arc driving block 31.

[0040] Working principle: When the motor 4 is running and the stirring shaft 5 is rotating to stir the material inside the mixing tank 1, the stirring shaft 5 will drive the second gear ring 13 to rotate through multiple connecting rods 14. The second gear ring 13 may drive multiple first gear rings 12 on its outside to rotate during the rotation. When the sleeve 8 drives the two bent connecting rods 9 to rotate with the first gear ring 12, the scraper bar 10 on the outside of the bent connecting rod 9 will rotate in accordance with the inner wall of the discharge pipe 7. During this process, the scraper bar 10 will cause the water vapor attached to the inner wall of the discharge pipe 7 to gather. When the water vapor gathers to a certain extent, water droplets will form and roll down, which can effectively prevent the rubber powder from adhering to the pipe mouth of the discharge pipe 7 due to the agglomeration of water vapor and affecting the feeding of the discharge pipe 7.

[0041] When the rubber powder in the annular guide groove 6 enters the mixing tank 1 through the discharge pipe 7, there is still a small amount of rubber powder adhering to the inner wall of the discharge pipe 7 due to water vapor. During the rotation of the scraper 10, the rubber powder attached to the inner wall of the discharge pipe 7 will also gather on the outside of the scraper 10. Since the sleeve 8 drives the two hemispheres 21 to rotate together through the support plate 16 during the rotation, the hemispheres 21 will slide in contact with multiple baffles 20 during the rotation. During the sliding contact between the hemispheres 21 and the baffles 20, the baffles 20 will drive the support plate 16, the sleeve 8 and the scraper 10 to move downward through the hemisphere 21, and the support plate 16 will move downward. The washer 18 squeezes the spring 17. When the hemisphere 21 rotates with the support plate 16 and disengages from the baffle 20, the hemisphere 21 will hit the positioning plate 15 driven by the compression force of the spring 17, which is conducive to the scraper bar 10 to move up and down and produce continuous vibration during the rotation process, thereby assisting the scraper bar 10 to vibrate and shake off the water vapor or rubber powder attached to its outside, avoiding the rubber powder from adhering to the outside of the scraper bar 10 and affecting the scraping effect of the scraper bar 10. On the other hand, the bending connecting rod 9 and the scraper bar 10 produce continuous vibration during the rotation process, which is conducive to the discharge pipe 7 to quickly discharge the rubber powder and prevent the rubber powder from being blocked in the discharge pipe 7.

[0042] During the rotation of the stirring shaft 5, the stirring shaft 5 will drive the first toothed guide wheel 26 and the third toothed guide wheel 29 to rotate through the second toothed guide wheel 27 and the synchronous toothed belt. During the rotation of the gear 24 with the first toothed guide wheel 26 through the first positioning shaft 25, the third gear ring 23 will drive the multiple push plates 22 to rotate synchronously in the annular guide groove 6. When the rubber powder in the hopper 2 enters the annular guide groove 6 through the guide pipe 3, the multiple push plates 22 push the rubber powder to rotate inside the annular guide groove 6. During the movement of the rubber powder inside the annular guide groove 6, it will enter the interior of the mixing tank 1 through the multiple discharge pipes 7, that is, the annular guide groove 6 sends the rubber powder into the mixing tank 1 through the multiple discharge pipes 7, which can expand the distribution range of the rubber powder in the mixing tank 1, which is beneficial for the stirring shaft 5 to quickly and evenly mix the rubber powder with the asphalt during the rotation, thereby improving the mixing efficiency of the rubber asphalt.

[0043] When the hopper 2 conveys rubber powder to the two annular guide grooves 6 through the guide pipe 3, the solenoid valve on the guide pipe 3 is opened, and the rubber powder enters the annular guide groove 6 through the guide pipe 3. In the process that the third toothed guide wheel 29 rotates with the stirring shaft 5 through the synchronous toothed belt, the multiple arc-shaped driving blocks 31 will rotate together with the third toothed guide wheel 29. During the rotation, the arc-shaped driving block 31 will drive the bent top rod 32 and the guide pipe 3 to move upward through the arc edge. When the bent top rod 32 disengages from the arc-shaped driving block 31 through the vertical portion, the guide pipe 3 will move downward and reset under the action of its own gravity. In this reciprocating manner, the guide pipe 3 can be shaken back and forth up and down during the process of conveying the rubber powder through the guide pipe 3, which is conducive to the rubber powder in the guide pipe 3 to quickly enter the annular guide groove 6.

[0044] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0045] Although 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 the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A mixing and stirring device for rubber asphalt processing, comprising a mixing tank (1), a hopper (2) is installed on the upper side of the mixing tank (1), a material guide pipe (3) is installed at the lower end of the hopper (2), two motors (4) are installed at the upper end of the mixing tank (1), and a stirring shaft (5) is connected to the driving end of the motor (4), characterized in that: Also includes: An annular material guide trough (6) installed at the upper end of the mixing tank (1) and located outside the motor (4), wherein a plurality of discharge pipes (7) are installed at the lower end of the annular material guide trough (6); A cleaning component, used for cleaning water vapor attached to the lower end of the discharge pipe (7), the cleaning component being installed on the outer side of the discharge pipe (7); A material pushing assembly, used for pushing the rubber powder to move inside the annular material guiding groove (6), the material pushing assembly being installed inside the annular material guiding groove (6); The cleaning assembly comprises a sleeve (8), two bent connecting rods (9) are mounted on the inner wall of the sleeve (8), and a scraper strip (10) is embedded on the outer side of the bent connecting rod (9); The outer side of the sleeve (8) is sleeved with a first gear ring (12), the outer side of the first gear ring (12) is mounted with a second gear ring (13), the inner wall of the second gear ring (13) is mounted with a plurality of connecting rods (14), and one end of the connecting rod (14) is connected to the stirring shaft (5); The pusher assembly comprises a pusher plate (22), the upper ends of the plurality of pusher plates (22) are connected to a third gear ring (23), a gear (24) is mounted on the outer side of the third gear ring (23), and a first positioning shaft (25) is embedded at the upper end of the gear (24); The upper end of the first positioning shaft (25) is connected to a first toothed guide wheel (26), the outer side of the stirring shaft (5) is sleeved with a second toothed guide wheel (27), and the upper side of the annular material guide groove (6) is also mounted with a third toothed guide wheel (29).

2. A mixing and stirring device for processing rubber asphalt according to claim 1, characterized in that: A connecting assembly is installed between the sleeve (8) and the discharge pipe (7), the connecting assembly comprising a positioning plate (15), the upper end of the sleeve (8) is connected to a supporting plate (16), and the lower end of the supporting plate (16) is installed with a spring (17).

3. A mixing and stirring device for processing rubber asphalt according to claim 2, characterized in that: The lower end of the spring (17) is connected to a washer (18), the outer sides of the sleeve (8), the spring (17) and the washer (18) are sleeved with a sleeve (19), the upper end of the sleeve (19) is connected to the positioning plate (15), and the lower end surface of the washer (18) is movably fitted to the sleeve (19).

4. A mixing and stirring device for processing rubber asphalt according to claim 3, characterized in that: A plurality of baffles (20) are mounted on the lower end of the positioning plate (15), two hemispherical bodies (21) are mounted on the upper end of the supporting plate (16), and the hemispherical bodies (21) and the baffles (20) are connected in a sliding contact manner.

5. A mixing and stirring device for processing rubber asphalt according to claim 1, characterized in that: The material guide pipe (3) is in the shape of an inverted Y-shape. The two auxiliary pipes of the material guide pipe (3) are respectively embedded in the upper ends of the two annular material guide grooves (6). The main pipe and the auxiliary pipe of the material guide pipe (3) are both provided with a telescopic portion (28). A driving assembly is installed between the third toothed guide wheel (29) and the material guide pipe (3), and the driving assembly includes an arc-shaped driving block (31).

6. A mixing and stirring device for processing rubber asphalt according to claim 5, characterized in that: The arc-shaped driving block (31) is provided with an arc edge portion and a vertical portion, a bent top rod (32) is installed on the outer side of the material guide tube (3), an embedded bead (11) is embedded at the lower end of the bent top rod (32), and the embedded bead (11) is in rolling contact with the arc-shaped driving block (31) through the arc edge portion of the arc-shaped driving block (31).

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