Production equipment of rubber and plastic composite modified asphalt

Abstract

The invention relates to the technical field of asphalt production, and discloses rubber and plastic composite modified asphalt production equipment which comprises a base, a smashing cylinder and a liquid nitrogen tank are fixedly connected to the base, a material guide valve disc is fixedly connected to the top of an inner cavity of the smashing cylinder, and a hopper in butt joint with the material guide valve disc is fixedly connected to the upper end of the smashing cylinder. A collecting cavity is formed in the bottom of an inner cavity of the smashing barrel, an inner smashing disc and an outer smashing disc are arranged on the top of the collecting cavity, a suction pipe is fixedly inserted into the front side of the collecting cavity, and a plurality of air guide holes are formed in the outer wall of the smashing barrel. Raw materials are crushed step by step and fall under the rotary cutting action of the crushing blades, and finally refined grinding and crushing are performed through the inner crushing disc and the outer crushing disc, so that the crushing pressure of a single crushing mechanism is relieved, the crushing effect is good, the output efficiency is high, nitrogen dissipation is avoided by cooperatively utilizing sealing of the material guide valve disc during cooling of low-temperature pressurized nitrogen, and the production efficiency is improved. And the physical and psychological health of processing personnel is influenced by poor processing air.

Description

Technical Field

[0001] The present invention relates to the technical field of asphalt production, and particularly relates to a production device for rubber-plastic composite modified asphalt. Background Art

[0002] Modified asphalt is an asphalt binder prepared by adding external admixtures such as rubber, resin, polymer, ground rubber powder or other fillers, or by taking measures such as slightly oxidizing the asphalt. In the production process of modified asphalt, a crushing device is required to crush the rubber raw material to the corresponding specification before use to ensure the quality of the modified asphalt.

[0003] The invention patent with the publication number of CN118268085B discloses a rubber powder production device for composite modified asphalt, which relates to the technical field of rubber powder production. The invention includes a crusher housing, inside which a crushing chamber and a powder outlet chamber are provided. The powder outlet chamber is annularly arranged outside the crushing chamber, and the crushing chamber and the powder outlet chamber are connected through sieve holes. A hopper is fixedly installed at the top of the crushing chamber, and a discharge port is arranged outside the powder outlet chamber. A crushing disc is rotatably installed inside the crushing chamber, and multiple groups of crushing rollers are rotatably installed on the inner wall of the crushing chamber. The multiple groups of crushing rollers are annularly distributed. In this invention, through ventilation by a fan, after the air flow passes through a liquid nitrogen tank, the vaporized low-temperature nitrogen is brought into the crushing disc to cool the crushing mechanism of the crushing disc. The use of low-temperature nitrogen can not only reduce the crushing temperature and improve the crushing efficiency, but also reduce the oxidation of the rubber shear surface and improve the quality of the rubber powder.

[0004] During the process of crushing the asphalt raw material by the rubber powder production device for modified asphalt in the above patent, only the relative rotation of the crushing disc and the crushing rollers is used to crush the raw material. The crushing pressure is relatively large, and the crushing effect is not good. It is difficult to quickly crush and output the raw material. Although when the temperature is relatively high due to the large crushing pressure, the feedback control regulating block can be used to adjust the input flow rate of the raw material to decrease, but since the input channel cannot be immediately closed, the raw material is still continuously input, and the relief of the raw material crushing pressure is relatively small, resulting in the raw material being prone to accumulate in the crushing chamber, affecting the subsequent crushing operation. When using low-temperature nitrogen to blow and cool, since the nitrogen is continuously output, the nitrogen is likely to escape outward through the hopper when there is not much raw material in the hopper, resulting in the deterioration of the processing air quality and affecting the physical and mental health of the processing personnel. Since the raw material is crushed in the crushing chamber by means of horizontal transportation, once it accumulates, the sieve holes at the edge are easily blocked by some uncrushed raw materials, and it is difficult for the nitrogen to pass through the relatively large raw material pile to blow and clean the screening holes, resulting in an impact on the output of the crushed raw material. Summary of the Invention

[0005] The object of the present invention is to solve the problems existing in the use of general modified asphalt production equipment, such as low crushing effect, low output efficiency, easy deterioration of the processing air quality during the cooling of the nitrogen crushing mechanism, and poor output caused by the horizontal conveying and crushing method. The present invention provides a production equipment for rubber-plastic composite modified asphalt.

[0006] The present invention specifically adopts the following technical solutions to achieve the above object: A production equipment for rubber-plastic composite modified asphalt, including a base, on which a crushing cylinder and a liquid nitrogen tank are fixedly connected. At the top of the inner cavity of the crushing cylinder, a material guiding valve plate is fixedly connected. At the upper end of the crushing cylinder, a hopper is fixedly connected and is docked with the material guiding valve plate. At the bottom of the inner cavity of the crushing cylinder, there is a collection cavity. At the top of the collection cavity, an inner crushing disc and an outer crushing disc are arranged. At the front side of the collection cavity, a suction pipe is fixedly inserted. A number of air guiding holes are opened on the outer wall of the crushing cylinder. At the bottom of the material guiding valve plate, a conical rotating sleeve that can move up and down is slidably sleeved. The inner crushing disc is fixedly connected to the bottom of the conical rotating sleeve. On the outer wall of the conical rotating sleeve, a number of rows of crushing blades are spherically hinged in a circumferential array; At the top of the liquid nitrogen tank, a suction pump is installed. On the left wall of the liquid nitrogen tank, an energy storage cylinder is fixedly connected. The suction pump is used to pump the nitrogen in the liquid nitrogen tank into the energy storage cylinder, and the energy storage cylinder is used to press nitrogen into each of the air guiding holes.

[0007] Further, both the front and rear sides of the material guiding valve plate have material guiding valve grooves, and the middle part of the material guiding valve plate shrinks upward in a conical shape.

[0008] Further, the outer crushing disc is fixedly connected to the inner wall of the crushing cylinder, and there is a crushing micro-channel between the outer crushing disc and the inner crushing disc.

[0009] Further, a transmission pipe is rotatably connected to the middle of the base, and a driving shaft is rotatably connected to the base. The driving shaft is driven by a motor installed at the upper end of the base. A transmission belt is movably sleeved between the driving shaft and the transmission pipe. At the bottom of the conical rotating sleeve, an elastic tube that is slidably clamped with the inner wall of the transmission pipe is fixedly connected.

[0010] Further, a guide groove is opened on the inner wall of the bottom of the crushing cylinder. The guide groove is circular and both the front and rear lower walls have protrusions. Rotating columns that are movably connected to the guide groove are rotatably connected to both the left and right sides of the elastic tube.

[0011] Further, a guide rod is rotatably connected between the material guiding valve disc and the base. The guide rod is slidably clamped at the bottom of the conical rotating sleeve. A pin protrusion is arranged on the guide rod. A conduit movably sleeved on the guide rod is rotatably connected to the lower wall of the inner cavity of the conical rotating sleeve. A spiral groove for movably clamping the pin protrusion is formed in the inner wall of the conduit. A plurality of cranks corresponding to the crushing blades are fixedly connected to the outer wall of the conduit. A chute is formed on one side of the crushing blade close to the conduit. The crank is slidably clamped with the chute.

[0012] Further, the input end of the suction pump is communicated with the top of the inner cavity of the liquid nitrogen tank. The output end of the suction pump is fixedly connected with a pressure gas pipe extending to the bottom of the inner cavity of the energy storage cylinder. A gas collecting hood is fixedly connected to the outer wall of the crushing cylinder. A flow guiding pipe is fixedly connected between the gas collecting hood and the bottom of the energy storage cylinder.

[0013] Further, the air guide holes are arranged in a circumferential array and multiple rows. The side of the air guide holes facing the inner cavity of the crushing cylinder is inclined downward, and the air guide holes are located above the collection cavity and within the coverage range of the gas collecting hood.

[0014] Further, an elastic piston movably sleeved on the pressure gas pipe is slidably connected to the inner wall of the energy storage cylinder. The bottom of the energy storage cylinder is sealed and the top is open; Valve pipes communicated with the flow guiding pipe are fixedly inserted on both the front and rear sides of the guide groove. An elastic valve column extending into the guide groove is slidably clamped in the valve pipe. The end of the elastic valve column facing the guide groove is rounded. A valve hole misaligned with the internal channel of the flow guiding pipe is formed in the elastic valve column.

[0015] The beneficial effects of the present invention are as follows: 1. In the present invention, the crushing channel between the conical rotating sleeve and the crushing cylinder gradually narrows during crushing, so as to facilitate controlling the step-by-step crushing and falling of raw materials with different particle sizes under the rotary cutting action of the crushing blades. After the raw materials are subjected to rotary cutting and crushing, they are finally finely ground and crushed by the inner and outer crushing discs, thereby reducing the crushing pressure of a single crushing mechanism, having good crushing effect and high output efficiency. During crushing, the conical rotating sleeve drives the inner crushing disc and each crushing blade to move up and down, and the crushing blades automatically swing horizontally, thereby further improving the crushing effect and output efficiency.

[0016] 2. When the present invention pauses the input of raw materials by sealing the material guiding valve disc through the upward movement of the conical rotating sleeve, the crushing pressure caused by the continuous input of raw materials is reduced, and the crushing effect is improved. When sealing, pressurized nitrogen at low temperature is introduced into the raw materials in the crushing area through the air guiding holes, which not only cools the crushing mechanism, but also avoids a large amount of nitrogen escaping outward through the material guiding valve disc and the hopper, resulting in poor processing air and affecting the physical and mental health of processing personnel. At the same time, it is also convenient to loosen and disperse the raw materials, improve the crushing effect, and dredge between the inner and outer crushing discs to accelerate the discharge of crushed materials.

[0017] 3. When the present invention crushes raw materials step by step downward along the vertical path during crushing, compared with horizontal conveying and crushing, the raw material flow output effect is better, and it is convenient for nitrogen to sink for raw material dredging, strengthening the utilization effect of nitrogen. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a three-dimensional structure diagram of the production equipment of the present invention; Figure 2 is a three-dimensional sectional view of the base and the crushing cylinder of the production equipment of the present invention; Figure 3 is a three-dimensional sectional view of the energy storage cylinder and the air collecting hood of the production equipment of the present invention; Figure 4 is an exploded view of the guide rod and the conduit of the production equipment of the present invention; Figure 5 is a three-dimensional sectional view of the crushing cylinder and the conical rotating sleeve of the production equipment of the present invention; Figure 6 is a three-dimensional structure diagram of the crushing blade and the crank of the production equipment of the present invention; Figure 7 is a three-dimensional sectional view of the crushing cylinder and the valve pipe of the production equipment of the present invention.

[0019] Reference numerals: 1. Base; 11. Transmission pipe; 12. Driving shaft; 13. Transmission belt; 2. Crushing cylinder; 21. Material guiding valve disc; 22. Material guiding valve groove; 23. Guide rod; 24. Pin projection; 25. Inner crushing disc; 26. Outer crushing disc; 27. Suction pipe; 28. Air guiding hole; 29. Guide groove; 3. Hopper; 4. Conical rotating sleeve; 41. Crushing blade; 42. Chute; 43. Conduit; 44. Spiral groove; 45. Crank; 46. Elastic tube; 47. Rotating column; 5. Liquid nitrogen tank; 51. Suction pump; 52. Energy storage cylinder; 53. Pressure air pipe; 54. Elastic piston; 55. Air collecting hood; 56. Diversion pipe; 57. Valve pipe; 58. Elastic valve column; 59. Valve hole. DETAILED DESCRIPTION OF THE INVENTION

[0020] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

[0021] Embodiment 1, as Figures 1-7 shown, a production device for rubber-plastic composite modified asphalt includes a base 1. A crushing cylinder 2 and a liquid nitrogen tank 5 are fixedly connected to the base 1. A feeding valve plate 21 is fixedly connected to the top of the inner cavity of the crushing cylinder 2. A hopper 3 connected to the feeding valve plate 21 is fixedly connected to the upper end of the crushing cylinder 2. A collection cavity is provided at the bottom of the inner cavity of the crushing cylinder 2. An inner crushing disc 25 and an outer crushing disc 26 are arranged at the top of the collection cavity. A suction pipe 27 is fixedly inserted into the front side of the collection cavity. A number of air guide holes 28 are formed on the outer wall of the crushing cylinder 2. A conical rotating sleeve 4 that can move up and down is slidably sleeved at the bottom of the feeding valve plate 21. The inner crushing disc 25 is fixedly connected to the bottom of the conical rotating sleeve 4. A number of rows of crushing blades 41 are circumferentially and arrayed and are ball-jointed to the outer wall of the conical rotating sleeve 4; A suction pump 51 is installed on the top of the liquid nitrogen tank 5. An energy storage cylinder 52 is fixedly connected to the left wall of the liquid nitrogen tank 5. The suction pump 51 is used to pump the nitrogen gas in the liquid nitrogen tank 5 into the energy storage cylinder 52, and the energy storage cylinder 52 is used to press nitrogen gas into each air guide hole 28.

[0022] Both the front and rear sides of the feeding valve plate 21 have feeding valve grooves 22, and the middle part of the feeding valve plate 21 contracts upward in a conical shape.

[0023] During the crushing process, the suction pipe 27 is externally connected to a suction and nitrogen recovery processing mechanism for the crushed materials. The raw materials are added to the hopper 3. Under the action of gravity, the raw materials automatically fall from the feeding valve grooves 22 on the feeding valve plate 21 into the crushing channel between the conical rotating sleeve 4 and the crushing cylinder 2. Since the crushing channel gradually narrows from top to bottom, the blocked and intercepted areas of raw materials of different specifications are different after falling. The suction pump 51 is operated to automatically extract the gaseous nitrogen in the liquid nitrogen tank 5 and input it into the energy storage cylinder 52 for storage. The rotation of the conical rotating sleeve 4 is controlled. The conical rotating sleeve 4 drives the inner crushing disc 25 and each crushing blade 41 to rotate synchronously. Each crushing blade 41 automatically performs graded rotary cutting on the raw materials at different heights. The raw materials at different heights are automatically dropped to the next height after rotary cutting and are rotary cut again, thereby achieving step-by-step crushing. The raw materials crushed by the crushing blades 41 at different heights finally fall between the inner crushing disc 25 and the outer crushing disc 26 for fine grinding and crushing. During this period, when the conical rotating sleeve 4 rotates, it continuously moves up and down, and the crushing blades 41 automatically swing horizontally, thereby increasing the rotary cutting range and effect of the crushing blades 41. In addition, it is convenient for the inner crushing disc 25 to "bite" the dropped raw materials in a form of up-and-down extrusion between the inner crushing disc 25 and the outer crushing disc 26 for sufficient grinding and crushing, and it is convenient for the raw materials ground and crushed well between the bottoms of the inner crushing disc 25 and the outer crushing disc 26 to be output. The crushing effect is good and the output efficiency is high; During the period when the conical rotating sleeve 4 moves upward to seal the material guiding valve groove 22 on the material guiding valve disc 21 and suspend the input of raw materials, the crushing pressure caused by the continuous input of raw materials automatically decreases, thereby improving the crushing effect. Synchronously, the energy storage cylinder 52 automatically passes low-temperature pressurized nitrogen into the crushing cylinder 2 through each air guide hole 28. After the low-temperature pressurized nitrogen enters the crushing area, it not only cools the raw materials and the crushing mechanism, reduces the oxidation of the shear surface of the rubber raw materials, but also facilitates the loosening and dispersion of the raw materials by cooperating with the stirring action of each crushing blade 41, improves the crushing effect, and speeds up the discharge of the crushed materials. At the same time, pressurized nitrogen is sealed and filled, avoiding a large amount of nitrogen escaping outward through the material guiding valve disc 21 and the hopper 3, resulting in poor processing air and affecting the physical and mental health of processing personnel. During crushing, since the raw materials are gradually crushed downward along the vertical path, compared with horizontal conveying and crushing, the raw material flow output effect is better, and it is convenient for nitrogen to sink for raw material dredging and discharge, strengthening the utilization effect of nitrogen. Subsequently, the crushed raw materials automatically fall into the collection chamber and are extracted by an external crushed material suction and nitrogen recovery processing mechanism through the suction pipe 27.

[0024] Embodiment 2, on the basis of the above embodiment, the outer crushing disc 26 is fixedly connected to the inner wall of the crushing cylinder 2, and there is a crushing micro-channel between the outer crushing disc 26 and the inner crushing disc 25.

[0025] After the raw materials are classified and rotary cut by each crushing blade 41 and fall into the crushing micro-channel, by using the micro-passing effect of the crushing micro-channel, it is convenient for the inner crushing disc 25 to fully grind and crush the raw materials driven by the conical rotating sleeve 4, ensuring the crushing quality of the raw materials.

[0026] Embodiment 3, on the basis of the above embodiment, a driving mechanism for the conical rotating sleeve 4 is provided: A transmission pipe 11 is rotatably connected to the middle of the base 1, a driving shaft 12 is rotatably connected to the base 1, the driving shaft 12 is driven by a motor installed at the upper end of the base 1, a transmission belt 13 is movably sleeved between the driving shaft 12 and the transmission pipe 11, and the bottom of the conical rotating sleeve 4 is fixedly connected with an elastic tube 46 that is slidably clamped with the inner wall of the transmission pipe 11.

[0027] A guide groove 29 is formed on the inner wall of the bottom of the crushing cylinder 2. The guide groove 29 is circular and has protrusions on the lower walls of the front and rear sides. Rotating columns 47 that are movably connected to the guide groove 29 are rotatably connected to both the left and right sides of the elastic tube 46.

[0028] During the crushing process, the motor drives the driving shaft 12 to rotate, and the driving shaft 12 drives the transmission belt 13 to rotate the transmission tube 11. The transmission tube 11 thereby drives the conical rotating sleeve 4 to rotate through the elastic tube 46. When the elastic tube 46 rotates, it drives the rotating column 47 to rotate along the annular guide groove 29. When the rotating column 47 is driven by the protrusion in the guide groove 29 to move upward, the elastic tube 46 slides and engages with the inner wall of the transmission tube 11, so that the elastic tube 46 drives the conical rotating sleeve 4 to move upward and ensures stable rotation transmission. When the rotating column 47 passes the protrusion, the elastic tube 46 drives the conical rotating sleeve 4 to move downward and reset under the action of its own elastic force. As the transmission tube 11 drives the elastic tube 46 to rotate continuously, the conical rotating sleeve 4 moves back and forth up and down during rotation, driving the inner crushing disk 25 and each crushing blade 41 to enhance the crushing effect on the raw material.

[0029] Embodiment 4, based on the above embodiment, provides an adjustment mechanism for a crushing blade 41: A guide rod 23 is rotatably connected between the guide valve disc 21 and the base 1. The guide rod 23 is slidably engaged with the bottom of the conical rotating sleeve 4. A pin convex 24 is provided on the guide rod 23. A conduit 43 movably sleeved on the guide rod 23 is rotatably connected to the lower wall of the inner cavity of the conical rotating sleeve 4. A spiral groove 44 movably engaged with the pin convex 24 is provided on the inner wall of the conduit 43. A plurality of cranks 45 corresponding to the crushing blade 41 are fixedly connected to the outer wall of the conduit 43. A slide groove 42 is provided on the side of the crushing blade 41 close to the conduit 43, and the crank 45 is slidably engaged with the slide groove 42.

[0030] During the crushing process, as the conical rotating sleeve 4 continuously rotates and reciprocates up and down, since the guide rod 23 is slidably engaged with the bottom of the conical rotating sleeve 4, the guide rod 23 drives the pin 24 to never deflect relative to the conical rotating sleeve 4, and when the conical rotating sleeve 4 moves upward, the conical rotating sleeve 4 drives the guide tube 43 to make the spiral groove 44 move upward relative to the pin convex 24, so that the spiral groove 44 is passively deflected under the drive of the pin convex 24, and drives the guide tube 43 to deflect, and the guide tube 43 drives each crank 45 to move the corresponding slide groove 42 on the crushing blade 41, so that the crushing blade 41 deflects, and when the conical rotating sleeve 4 moves downward and resets, the crushing blade 41 is automatically driven to reset, so that when the conical rotating sleeve 4 rotates and reciprocates up and down, each crushing blade 41 swings back and forth to cut, thereby increasing the crushing effect on the raw material; Since the crushing blades 41 are arranged in multiple rows on the outer wall of the conical rotating sleeve 4, and the outer wall of the conical rotating sleeve 4 is inclined, the clamping points of the cranks 45 of different heights and the slide grooves 42 on the corresponding crushing blades 41 gradually move away from the rotating axis of the crushing blades 41 from top to bottom. Therefore, the swing cutting amplitude of the outer end of the crushing blade 41 gradually decreases from top to bottom to just meet the crushing requirements of raw materials of different heights.

[0031] Example 5. On the basis of the above embodiments, a nitrogen delivery mechanism is provided: The input end of the suction pump 51 is communicated with the top of the inner cavity of the liquid nitrogen tank 5. The output end of the suction pump 51 is fixedly connected with a pressure gas pipe 53 extending to the bottom of the inner cavity of the energy storage cylinder 52. The outer wall of the crushing cylinder 2 is fixedly connected with a gas collecting hood 55. A diversion pipe 56 is fixedly connected between the gas collecting hood 55 and the bottom of the energy storage cylinder 52.

[0032] The air guide holes 28 are arranged in a circumferential array and multiple rows. The side of the air guide holes 28 facing the inner cavity of the crushing cylinder 2 is inclined downward, and the air guide holes 28 are located above the collection cavity and within the coverage of the gas collecting hood 55.

[0033] During the crushing process, the suction pump 51 operates synchronously to extract the gaseous low-temperature nitrogen in the top of the inner cavity of the liquid nitrogen tank 5 and input it into the energy storage cylinder 52. The nitrogen in the corresponding energy storage cylinder 52 is released into the gas collecting hood 55 through the diversion pipe 56, and is evenly distributed to the raw materials in different crushing areas through each air guide hole 28, so as to quickly cool the raw materials and the crushing mechanism. With the downward-inclined design of the air guide holes 28, it is convenient for nitrogen to be pressed into the raw materials in the downward direction, strengthening the downward movement speed of the raw materials after crushing and accelerating the discharge.

[0034] Example 6. On the basis of the above embodiments, a nitrogen release control mechanism is provided: A resilient piston 54 that is slidably connected to the inner wall of the energy storage cylinder 52 and sleeved on the pressure gas pipe 53. The bottom of the energy storage cylinder 52 is sealed and the top is open; Valve pipes 57 communicated with the diversion pipe 56 are fixedly inserted on both the front and rear sides of the guide groove 29. A resilient valve post 58 extending into the guide groove 29 is slidably clamped in the valve pipes 57. The end of the resilient valve post 58 facing the guide groove 29 is rounded. A valve hole 59 that is misaligned with the internal channel of the diversion pipe 56 is opened on the resilient valve post 58.

[0035] When the conical rotating sleeve 4 moves upward to seal the material guiding valve disc 21, the rotating column 47 rotates to the protrusion in the guide groove 29 accordingly. When the rotating column 47 squeezes the resilient valve post 58 to contract, the resilient valve post 58 drives the valve hole 59 to be docked with the diversion pipe 56, so as to release the low-temperature pressurized nitrogen stored in the energy storage cylinder 52. Since the material guiding valve disc 21 is sealed, the corresponding nitrogen will not be released outward through the material guiding valve disc 21 and the hopper 3, but is sucked and recycled by the crushing material suction and nitrogen recovery processing mechanism connected to the suction pipe 27, avoiding the nitrogen from escaping and reducing the oxygen content in the air, which affects the physical and mental health of the processing personnel; When the rotating column 47 rotates past the elastic valve column 58, the elastic valve column 58 automatically resets under its own elastic force to block the diversion pipe 56 again. And when the rotating column 47 rotates past the protrusion, the conical rotating sleeve 4 moves downward and the material guiding valve disc 21 opens. During the opening of the material guiding valve disc 21, with the continuous operation of the suction pump 51, low-temperature nitrogen continuously accumulates in the energy storage cylinder 52 and presses the elastic piston 54 to move upward, thereby automatically pressurizing and ensuring the stable pressing effect of the subsequent raw materials. Subsequently, when the conical rotating sleeve 4 moves upward again to seal the material guiding valve disc 21, the low-temperature pressurized nitrogen is automatically released again.

[0036] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be obvious to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to these embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A production device for rubber-plastic composite modified asphalt, comprising a base (1), characterized in that: The base (1) is fixedly connected with a pulverizing cylinder (2) and a liquid nitrogen tank (5); the inner cavity top of the pulverizing cylinder (2) is fixedly connected with a material guide valve disc (21); the upper end of the pulverizing cylinder (2) is fixedly connected with a hopper (3) docked with the material guide valve disc (21); the inner cavity bottom of the pulverizing cylinder (2) is provided with a collecting chamber; the top of the collecting chamber is provided with an inner pulverizing disc (25) and an outer pulverizing disc (26); a suction pipe (27) is fixedly plugged into the front side of the collecting chamber; a plurality of air guide holes (28) are provided on the outer wall of the pulverizing cylinder (2); a conical rotating sleeve (4) capable of moving up and down is slidably sleeved on the bottom of the material guide valve disc (21); the inner pulverizing disc (25) is fixedly connected to the bottom of the conical rotating sleeve (4); and the outer wall of the conical rotating sleeve (4) is spherically hinged with a plurality of rows of pulverizing blades (41) in a circular array; A suction pump (51) is installed on the top of the liquid nitrogen tank (5), and an energy storage cylinder (52) is fixedly connected to the left wall of the liquid nitrogen tank (5). The suction pump (51) is used to pump nitrogen in the liquid nitrogen tank (5) into the energy storage cylinder (52), and the energy storage cylinder (52) is used to pressurize nitrogen into each of the air guide holes (28).

2. The production equipment of a rubber-plastic composite modified asphalt according to claim 1, characterized in that: The material guide valve disc (21) has material guide valve grooves (22) on both the front and rear sides, and the middle part of the material guide valve disc (21) shrinks upwards to form a cone shape.

3. The production equipment of a rubber-plastic composite modified asphalt according to claim 2, characterized in that: The outer pulverizing disk (26) is fixedly connected to the inner wall of the pulverizing barrel (2), and a pulverizing microchannel is provided between the outer pulverizing disk (26) and the inner pulverizing disk (25).

4. The production equipment of rubber-plastic composite modified asphalt according to claim 3, characterized in that: A transmission tube (11) is rotatably connected to the middle of the base (1), a drive shaft (12) is rotatably connected to the base (1), the drive shaft (12) is driven by a motor mounted on the upper end of the base (1), a transmission belt (13) is movably sleeved between the drive shaft (12) and the transmission tube (11), and an elastic tube (46) is fixedly connected to the bottom of the conical rotating sleeve (4) and is slidably engaged with the inner wall of the transmission tube (11).

5. The production equipment of rubber-plastic composite modified asphalt according to claim 4, characterized in that: A guide groove (29) is provided on the inner wall at the bottom of the pulverizing cylinder (2). The guide groove (29) is annular and has protrusions on the front and rear lower walls. The elastic tube (46) is rotatably connected to rotating columns (47) movably connected to the guide groove (29) on both left and right sides.

6. The production equipment of rubber-plastic composite modified asphalt according to claim 5, characterized in that: A guide rod (23) is rotatably connected between the guide valve disc (21) and the base (1), the guide rod (23) is slidably engaged with the bottom of the conical rotating sleeve (4), a pin protrusion (24) is provided on the guide rod (23), a guide tube (43) movably engaged with the guide rod (23) is rotatably connected to the lower wall of the inner cavity of the conical rotating sleeve (4), a spiral groove (44) movably engaged with the pin protrusion (24) is provided on the inner wall of the guide tube (43), a plurality of cranks (45) corresponding to the crushing blade (41) are fixedly connected to the outer wall of the guide tube (43), a sliding groove (42) is provided on the side of the crushing blade (41) close to the guide tube (43), and the crank (45) is slidably engaged with the sliding groove (42).

7. The production equipment of rubber-plastic composite modified asphalt according to claim 6, characterized in that: The input end of the suction pump (51) is in communication with the top of the inner cavity of the liquid nitrogen tank (5); the output end of the suction pump (51) is fixedly connected to a compressed air pipe (53) extending to the bottom of the inner cavity of the energy storage cylinder (52); the outer wall of the pulverizing cylinder (2) is fixedly connected to a gas collecting hood (55); and a flow guide pipe (56) is fixedly connected between the gas collecting hood (55) and the bottom of the energy storage cylinder (52).

8. The production equipment of rubber-plastic composite modified asphalt according to claim 7, characterized in that: The air guide holes (28) are arranged in a circular array and in multiple rows, the air guide holes (28) are arranged obliquely downward toward one side of the inner cavity of the pulverizing cylinder (2), and the air guide holes (28) are located on the upper side of the collection cavity and within the coverage of the air collecting hood (55).

9. The production equipment of rubber-plastic composite modified asphalt according to claim 8, characterized in that: The inner wall of the energy storage cylinder (52) is slidably connected to an elastic piston (54) movably sleeved on the compressed air pipe (53); the bottom of the energy storage cylinder (52) is sealed and the top is open; A valve tube (57) connected to the guide tube (56) is fixedly inserted at both the front and rear sides of the guide groove (29); a resilient valve column (58) extending into the guide groove (29) is slidably engaged in the valve tube (57); a rounded corner is arranged at one end of the resilient valve column (58) facing the guide groove (29); and a valve hole (59) is provided on the resilient valve column (58) which is offset from the internal channel of the guide tube (56).

Images