Urban construction road asphalt concrete recovery processing device and operation method thereof

Abstract

The invention belongs to the field of asphalt concrete recycling, and particularly relates to an urban construction road asphalt concrete recycling device and an operation method thereof.The urban construction road asphalt concrete recycling device comprises a tank bottom, the top of the tank bottom is provided with a tank top, and the outer wall of the tank bottom is fixedly connected with a first supporting ring; according to the urban construction road asphalt concrete recycling device and the operation method thereof, the first feeding opening is blocked through the arranged flow guide block and the flow guide plate, hot air is prevented from floating upwards too fast to be discharged out of the tank top, and through guiding of the bottom of the flow guide plate, the hot air is accumulated at the included angle between the flow guide plate and the tank top; when a motor is started, a cam is driven to rotate, a second spring is matched, a piston plate moves left and right in a reciprocating mode, hot air at the included angle of a drainage plate and the tank top is extracted and squeezed downwards, and therefore the hot air floating upwards can heat waste asphalt concrete below again, and the hot air floating upwards can be blocked through a side plate; and the contact time of the hot air and the waste asphalt concrete is prolonged.

Description

Technical Field

[0001] The invention belongs to the field of asphalt concrete recycling, in particular to a recycling and processing device for urban road asphalt concrete and an operating method thereof. Background Art

[0002] With the progress of society and the continuous advancement of modernization, my country has invested huge manpower and material resources in highway construction and has achieved good results. However, after a long period of use, cracks and pits will appear on the surface of the highway, which needs to be repaired and maintained in time. During the construction of the highway, the staff gradually realized that waste asphalt concrete can be recycled and reused. On the one hand, it can be used to pave new roads, and on the other hand, it can be used to repair the cracks and collapse problems on the old roads. This reduces the use of new asphalt and mixed ingredients, thereby greatly reducing costs. The recycling of waste asphalt concrete has high economic and environmental benefits. In the recycling of waste asphalt concrete, it is necessary to collect and transport old materials, crush and screen, heat regeneration process, stirring and mixing, etc. The existing technology generally heats the waste asphalt concrete with hot air, adds an appropriate amount of regeneration agent, and then uses a mixer and other equipment to fully stir it.

[0003] However, when using hot air for waste asphalt concrete, because the density of hot air is smaller than that of the surrounding air, when heating the waste asphalt concrete, the hot air will continue to float upward and separate from the waste asphalt concrete, resulting in the waste asphalt concrete being difficult to be continuously heated, and the waste asphalt concrete accumulated at the bottom is even more difficult to contact with the hot air. Secondly, when injecting the regeneration agent into the waste asphalt concrete, the regeneration agent is generally poured directly into the waste asphalt concrete. This method makes it difficult to mix the regeneration agent and the waste asphalt concrete evenly, resulting in excessively high concentrations of regeneration agents in local areas and insufficient regeneration agents in other areas. In addition, a large amount of regeneration agents is added at one time. During the mixing process, the light components in the regeneration agent are more likely to volatilize. After the light oil is volatilized, the remaining regeneration agent cannot effectively soften the asphalt, resulting in the regenerated asphalt still being harder.

[0004] To this end, the present invention provides a recycling and processing device for urban road asphalt concrete and an operating method thereof. Summary of the invention

[0005] In order to make up for the deficiencies of the prior art, the problem is that when using hot air to heat waste asphalt concrete, because the density of hot air is smaller than that of the surrounding air, when heating the waste asphalt concrete, the hot air will continue to float upward and separate from the waste asphalt concrete, resulting in the waste asphalt concrete being difficult to be continuously heated, and the waste asphalt concrete accumulated at the bottom is even more difficult to contact the hot air. Secondly, when injecting the regeneration agent into the waste asphalt concrete, the regeneration agent is generally poured directly into the waste asphalt concrete. This method makes it difficult to mix the regeneration agent and the waste asphalt concrete evenly, resulting in excessively high concentrations of the regeneration agent in local areas, while insufficient regeneration agent in other areas, and a large amount of regeneration agent is added at one time. During the stirring process, the light components in the regeneration agent are more likely to volatilize. After the light oil is volatilized, the remaining regeneration agent cannot effectively soften the asphalt, resulting in the regenerated asphalt still being relatively hard. The present invention proposes a recycling and processing device for urban road asphalt concrete and an operating method thereof.

[0006] The technical solution adopted by the present invention to solve its technical problem is: the recycling and processing device of asphalt concrete for urban construction roads described in the present invention includes a tank bottom, a tank top is arranged on the top of the tank bottom, a first support ring is fixedly connected to the outer wall of the tank bottom, a second support ring is fixedly connected to the outer wall of the tank top, a hydraulic cylinder is fixedly connected to the top of the first support ring, the output end of the hydraulic cylinder is fixedly connected to the second support ring, a first feed port is opened on the top of the tank top, a guide plate is fixedly connected to the top of the inner wall of the tank top, a connecting frame is fixedly connected to the bottom of the guide plate, and the connecting frame A guide block is fixedly connected to the bottom of the connecting frame, and the top and bottom of the guide block are both set to annular inclined surfaces. A motor is fixedly connected to the top of the tank top, and the output end of the motor passes through the tank top and is fixedly connected to a first pipe, the first pipe passes through the guide block and is rotatably connected to the guide block, a second pipe is slidably connected to the outer wall of the first pipe and located below the guide block, the bottom of the second pipe passes through the tank bottom, a heating assembly is provided on the outer wall of the second pipe and located below the tank bottom, and a plurality of stirring rods are equidistantly fixedly connected to the outer wall of the second pipe and located inside the tank bottom.

[0007] Furthermore, the heating assembly includes a sleeve, which is arranged on the outer wall of the second pipe and rotatably connected to the second pipe, a cavity is opened inside the sleeve, an air inlet is opened on the outer wall of the second pipe, the air inlet is located inside the cavity, a heating wire is arranged inside the cavity, an air pump is fixedly connected to the bottom of the tank bottom, an output end of the air pump is connected to an air intake pipe, one end of the air intake pipe extends to the inside of the cavity, and an air outlet is opened on the outer wall of the second pipe and located above the air inlet.

[0008] Furthermore, a baffle is fixedly connected to the outer wall of the second pipe above the air outlet, and the bottom of the baffle is configured as an annular inclined surface.

[0009] Furthermore, a plurality of first gas pipelines are fixedly connected to the bottom of the guide plate at equal intervals, an exhaust port is provided on the outer wall of the first gas pipeline, a second gas pipeline is slidably connected to the inner wall of the first gas pipeline, a sleeve is fixedly connected to the outer wall of the first gas pipeline, two one-way valves are symmetrically arranged on the inner wall of the first gas pipeline with the sleeve as the center, both of the two one-way valves are opened downward, a hot air circulation component is arranged inside the sleeve, side panels are fixedly connected to both sides of the sleeve, and the side panels are arranged in an arc shape.

[0010] Furthermore, the hot air circulation component includes a piston plate, which is arranged on the inner wall of the sleeve and slidably connected to the sleeve, one side of the piston plate is fixedly connected to a piston rod, one end of the piston rod passes through the sleeve and is fixedly connected to a top plate, the outer wall of the piston rod is sleeved with a second spring, one end of the second spring is fixedly connected to the sleeve, the other end of the second spring is fixedly connected to the top plate, the outer wall of the second pipe is fixedly connected to a cam, and the cam is used in conjunction with the top plate.

[0011] Furthermore, a heating pipe is fixedly connected to the bottom of the second gas pipeline, and the heating pipe is configured in a disc shape.

[0012] Furthermore, a limiting ring is fixedly connected to the outer wall of the second gas pipeline, a sliding groove is provided on the inner wall of the first gas pipeline, and the limiting ring fits the inner wall of the sliding groove; a first spring is sleeved on the outer wall of the second gas pipeline, the bottom of the first spring is fixedly connected to the first gas pipeline, the top of the first spring is fixedly connected to the limiting ring, a plurality of positioning rings are equidistantly fixedly connected to the inner wall of the tank bottom, a through groove is provided inside the positioning ring for use with the second gas pipeline, and two blocks are symmetrically and slidably connected to the inner wall of the positioning ring, one end of the block extends to the inside of the through groove, and the other end of the block is fixedly connected to a third spring, one end of the third spring is fixedly connected to the positioning ring, the top and bottom of the block are both set to inclined surfaces, and a plurality of fixing rings are equidistantly fixedly connected to the outer wall of the second gas pipeline and located below the positioning ring.

[0013] Furthermore, a material accumulation cavity is opened inside the guide block, a feed hopper is fixedly connected to the top of the guide block, a plurality of second feed ports are opened at equal intervals on the top of the guide block, the second feed ports are located inside the feed hopper, the second feed ports are communicated with the material accumulation cavity, and a material discharge assembly is opened on the outer wall of the first pipe.

[0014] Furthermore, the material discharge assembly includes a second feed trough, which is opened on the outer wall of the first pipe, a first feed trough is opened inside the guide block, the first feed trough is communicated with the material accumulation chamber, the first feed trough and the second feed trough are located in the same horizontal plane, a first discharge trough is opened on the outer wall of the first pipe and below the cam, a second discharge trough is opened on the outer wall of the second pipe and above the baffle, and the first discharge trough and the second discharge trough are located in the same horizontal plane.

[0015] An operating method of a recycling and processing device for urban road asphalt concrete, the operating method is applicable to the above-mentioned recycling and processing device for urban road asphalt concrete, and the steps of the operating method are as follows: S1: Put the waste asphalt concrete into the bottom of the tank through the first feed port, start the air pump, draw the outside air into the bottom of the tank through the air inlet pipe and the second pipe, heat the air entering the second pipe through the heating wire, and the heated hot air heats and softens the waste asphalt concrete in the bottom of the tank; S2: starting the motor to drive the first pipe and the second pipe to rotate, so that the plurality of stirring rods stir the waste asphalt concrete; S3: Put an appropriate amount of regeneration agent into the accumulation chamber along the feed hopper, and the first pipe rotates to intermittently sprinkle the regeneration agent in the accumulation chamber into the waste asphalt concrete; S4: Start the motor to control the cam to rotate, driving the piston plate to move back and forth left and right, extracting the hot air at the angle between the guide plate and the tank top and squeezing it downward, so that the hot air floating upward is recycled.

[0016] The beneficial effects of the present invention are as follows: 1. The present invention discloses a recycling and processing device for asphalt concrete of urban roads and an operating method thereof. The first feed port is blocked by the provided guide block and the guide plate to prevent the hot gas from floating upward and being discharged from the tank top too quickly. The hot gas is guided by the bottom of the guide plate to accumulate at the angle between the guide plate and the tank top. The motor is started and the cam is driven to rotate. The second spring is used to move the piston plate back and forth left and right to extract the hot gas at the angle between the guide plate and the tank top and squeeze it downward, so that the hot gas floating upward can heat the waste asphalt concrete below again. The hot gas recycling method improves the use efficiency of the hot gas. The side plates can block the hot gas floating upward to prevent the hot gas from floating upward quickly, thereby increasing the contact time between the hot gas and the waste asphalt concrete.

[0017] 2. The recycling and processing device for asphalt concrete of urban roads and the operating method thereof described in the present invention increases the contact area between hot air and waste asphalt concrete by configuring the heating pipe in a disc shape, thereby enhancing the heating effect of hot air on waste asphalt concrete and facilitating the hot air to heat the waste asphalt concrete accumulated inside.

[0018] 3. The recycling and processing device for asphalt concrete of urban roads described in the present invention and its operation method accumulates the regeneration agent in the material accumulation chamber. The first pipe rotates while driving the second feed trough to rotate. By adjusting the position of the second feed trough, the regeneration agent in the material accumulation chamber can be intermittently discharged. By intermittently adding the regeneration agent, the regeneration agent can be distributed more evenly in the waste asphalt concrete, avoiding the situation where the concentration of the regeneration agent in local areas is too high or too low, and can reduce the volatilization of light components in the regeneration agent.

[0019] 4. The recycling and processing device for asphalt concrete of urban roads described in the present invention and its operation method, through the cooperation of a plurality of fixing rings and clamping blocks, can drive the second gas pipeline and the heating pipe to vibrate multiple times when the tank top and the tank bottom are separated, so as to facilitate shaking off the waste asphalt concrete adhering to the second gas pipeline and the heating pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The present invention will be further described below in conjunction with the accompanying drawings.

[0021] Figure 1 is a stereogram of the present invention; Figure 2 is a cross-sectional view of the present invention; Figure 3 It is a stereoscopic diagram of the cam and the top plate of the present invention in cooperation with each other; Figure 4 It is a three-dimensional diagram of the first gas transmission pipeline and the guide plate of the present invention in cooperation with each other; Figure 5 It is a stereoscopic diagram of the guide block of the present invention used in conjunction with the feed hopper; Figure 6 The present invention Figure 2 The enlarged view of point A in the middle; Figure 7 The present invention Figure 2 The enlarged view of point B in the middle; Figure 8 The present invention Figure 2 Enlarged view of point C in the middle; Fig. 9 The present invention Figure 2 The enlarged view of point D in the middle; Fig.10 The present invention Figure 2 Enlarged view of point E in the middle.

[0022] In the figure: 1, tank bottom; 2, tank top; 3, first support ring; 4, second support ring; 5, hydraulic cylinder; 6, first feed port; 7, motor; 8, first pipeline; 9, second pipeline; 10, stirring rod; 11, sleeve; 12, cavity; 13, air inlet; 14, heating wire; 15, air pump; 16, air inlet pipeline; 17, guide plate; 18, connecting frame; 19, guide block; 20, material accumulation cavity; 21, second feed port; 22, feed hopper; 23, first feed trough; 24, the Second feed trough; 25, first discharge trough; 26, second discharge trough; 27, air outlet; 28, baffle; 29, first gas pipeline; 30, second gas pipeline; 31, limit ring; 32, first spring; 33, heating tube; 34, sleeve; 35, piston plate; 36, piston rod; 37, top plate; 38, second spring; 39, one-way valve; 40, cam; 41, positioning ring; 42, third spring; 43, block; 44, fixing ring; 45, air outlet; 46, side plate. DETAILED DESCRIPTION

[0023] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0024] like Figures 1 to 10 As shown, the present invention provides a technical solution, a recycling and processing device for asphalt concrete of urban roads, comprising a tank bottom 1, a tank top 2 is arranged on the top of the tank bottom 1, a first support ring 3 is fixedly connected to the outer wall of the tank bottom 1, a second support ring 4 is fixedly connected to the outer wall of the tank top 2, a hydraulic cylinder 5 is fixedly connected to the top of the first support ring 3, an output end of the hydraulic cylinder 5 is fixedly connected to the second support ring 4, a first feed port 6 is opened on the top of the tank top 2, a guide plate 17 is fixedly connected to the top of the inner wall of the tank top 2, a connecting frame 18 is fixedly connected to the bottom of the guide plate 17, and a connecting frame 18 is fixedly connected to the bottom of the connecting frame 18. A guide block 19 is connected, and the top and bottom of the guide block 19 are both set to annular inclined surfaces. The top of the tank top 2 is fixedly connected to a motor 7, and the output end of the motor 7 passes through the tank top 2 and is fixedly connected to a first pipe 8. The first pipe 8 passes through the guide block 19 and is rotatably connected to the guide block 19. The outer wall of the first pipe 8 is slidably connected to a second pipe 9 located below the guide block 19. The bottom of the second pipe 9 passes through the tank bottom 1. A heating component is arranged on the outer wall of the second pipe 9 and is located below the tank bottom 1. A plurality of stirring rods 10 are fixedly connected to the outer wall of the second pipe 9 and are located inside the tank bottom 1 at equal intervals.

[0025] Through the above technical scheme, the waste asphalt concrete is put into the tank top 2 along the first feed port 6, the waste asphalt concrete flows downward along the top of the guide plate 17 and the top of the guide block 19, and falls into the tank bottom 1. Hot air is injected into the tank bottom 1 through the heating component to heat and soften the waste asphalt concrete. The first feed port 6 is blocked by the set guide block 19 and the guide plate 17 to prevent the hot air from floating upward and discharging from the tank top 2 too quickly. The motor 7 is started to drive the first pipe 8 to rotate, the second pipe 9 to rotate, and the plurality of stirring rods 10 to rotate. The waste asphalt concrete is stirred by the plurality of stirring rods 10 to facilitate the uniform mixing of the waste asphalt concrete and the hot air.

[0026] Specifically, the heating assembly includes a sleeve 11, which is arranged on the outer wall of the second pipe 9 and is rotatably connected to the second pipe 9. A cavity 12 is opened inside the sleeve 11, and an air inlet 13 is opened on the outer wall of the second pipe 9. The air inlet 13 is located inside the cavity 12. A heating wire 14 is arranged inside the cavity 12. An air pump 15 is fixedly connected to the bottom of the tank bottom 1, and the output end of the air pump 15 is connected to an air intake pipe 16. One end of the air intake pipe 16 extends to the inside of the cavity 12. An air outlet 27 is opened on the outer wall of the second pipe 9 and located above the air inlet 13.

[0027] Through the above technical solution, the air pump 15 is started, and the outside air is drawn into the cavity 12 along the air inlet pipe 16. The air is heated by the heating wire 14. The air entering the cavity 12 is heated and enters the second pipe 9 along the air inlet 13. The hot air circulates along the second pipe 9 and is discharged from the air outlet 27, thereby heating and softening the waste asphalt concrete in the tank bottom 1.

[0028] Specifically, a baffle 28 is fixedly connected to the outer wall of the second pipe 9 above the air outlet 27 , and the bottom of the baffle 28 is configured as an annular inclined surface.

[0029] Through the above technical solution, the hot air discharged from the air outlet 27 hits the bottom of the baffle 28 and flows along the inclined surface of the bottom of the baffle 28, thereby allowing the hot air entering the tank bottom 1 to flow downward, which is convenient for heating the waste asphalt concrete below. The method of circulating the hot air downward can prevent the hot air from floating directly upward, thereby improving the efficiency of heating the waste asphalt concrete.

[0030] Specifically, a plurality of first gas pipelines 29 are fixedly connected at equal intervals to the bottom of the guide plate 17, an exhaust port 45 is provided on the outer wall of the first gas pipeline 29, a second gas pipeline 30 is slidably connected to the inner wall of the first gas pipeline 29, a sleeve 34 is fixedly connected to the outer wall of the first gas pipeline 29, two one-way valves 39 are symmetrically provided on the inner wall of the first gas pipeline 29 with the sleeve 34 as the center, both one-way valves 39 are opened downward, a hot air circulation component is provided inside the sleeve 34, side plates 46 are fixedly connected to both sides of the sleeve 34, and the side plates 46 are arranged in an arc shape.

[0031] Through the above technical solution, after the hot air floats upward, it flows through the guiding side surface of the bottom slope of the guide block 19 to prevent the hot air from being discharged from the first feed port 6, and through the guidance of the bottom of the guide plate 17, the hot air is accumulated at the angle between the guide plate 17 and the tank top 2. When the motor 7 is started, the hot air at the angle between the guide plate 17 and the tank top 2 is drawn into the first gas pipeline 29 through the hot gas circulation component, and the hot air flows downward along the first gas pipeline 29 and the second gas pipeline 30, so that the hot air floating upward can heat the waste asphalt concrete below again. The hot gas circulation method improves the utilization efficiency of the hot gas. The side plate 46 provided can block the hot gas floating upward to prevent the hot gas from floating upward quickly, thereby increasing the contact time between the hot gas and the waste asphalt concrete.

[0032] Specifically, the hot gas circulation component includes a piston plate 35, which is arranged on the inner wall of the sleeve 34 and is slidably connected to the sleeve 34. A piston rod 36 is fixedly connected to one side of the piston plate 35, one end of the piston rod 36 passes through the sleeve 34 and is fixedly connected to a top plate 37, and a second spring 38 is sleeved on the outer wall of the piston rod 36, one end of the second spring 38 is fixedly connected to the sleeve 34, and the other end of the second spring 38 is fixedly connected to the top plate 37. A cam 40 is fixedly connected to the outer wall of the second pipe 9, and the cam 40 is used in conjunction with the top plate 37.

[0033] By means of the above technical solution, the second pipe 9 rotates while driving the cam 40 to rotate. When the raised end of the cam 40 rotates to a position close to the top plate 37, the top plate 37 is pushed to move under the extrusion of the cam 40, driving the piston rod 36 to move, so that the piston plate 35 slides in the sleeve box 34. The top plate 37 moves while pressing the second spring 38. When the raised end of the cam 40 rotates to a position away from the top plate 37, the top plate 37 is pushed to reset under the action of the second spring 38, so that the piston plate 35 moves back, thereby reciprocating. When the cam 40 rotates, it drives the piston plate 35 to move back and forth left and right in the sleeve box 34. When the piston plate 35 moves to the side away from the first gas pipeline 29, it cooperates with the two one-way valves 39 to draw the hot air at the angle between the guide plate 17 and the tank top 2 into the sleeve box 34 along the exhaust port 45 and the first gas pipeline 29. When the piston plate 35 moves to the side close to the first gas pipeline 29, it cooperates with the two one-way valves 39 to squeeze the hot air in the sleeve box 34 downward along the first gas pipeline 29 and the second gas pipeline 30.

[0034] Specifically, a heating pipe 33 is fixedly connected to the bottom of the second gas pipeline 30 , and the heating pipe 33 is configured in a disc shape.

[0035] Through the above technical solution, the hot air transported downward enters the heating pipe 33 and circulates in the disc-shaped heating pipe 33. By setting the heating pipe 33 in a disc shape, the contact area between the hot air and the waste asphalt concrete is increased, thereby improving the heating effect of the hot air on the waste asphalt concrete and facilitating the hot air to heat the waste asphalt concrete accumulated inside.

[0036] Specifically, the outer wall of the second gas pipeline 30 is fixedly connected to a limit ring 31, the inner wall of the first gas pipeline 29 is provided with a slide groove, the limit ring 31 fits the inner wall of the slide groove, the outer wall of the second gas pipeline 30 is sleeved with a first spring 32, the bottom of the first spring 32 is fixedly connected to the first gas pipeline 29, the top of the first spring 32 is fixedly connected to the limit ring 31, the inner wall of the tank bottom 1 is equidistantly fixedly connected to a plurality of positioning rings 41, the interior of the positioning ring 41 is provided with a through groove used to cooperate with the second gas pipeline 30, the inner wall of the positioning ring 41 is symmetrically slidably connected to two blocks 43, one end of the block 43 extends to the inside of the through groove, the other end of the block 43 is fixedly connected to a third spring 42, one end of the third spring 42 is fixedly connected to the positioning ring 41, the top and bottom of the block 43 are both set as inclined surfaces, the outer wall of the second gas pipeline 30 and located below the positioning ring 41 are equidistantly fixedly connected to a plurality of fixing rings 44.

[0037] Through the above technical solution, after the thermal regeneration of the waste asphalt concrete is completed, the hydraulic cylinder 5 is started to push the tank top 2 to move upward, so that the tank top 2 is separated from the tank bottom 1, thereby facilitating the removal of the waste asphalt concrete after thermal regeneration. While the tank top 2 moves upward, it drives the first gas pipeline 29, the second gas pipeline 30, and the heating pipe 33 to move upward at the same time. When the fixing ring 44 on the outer wall of the second gas pipeline 30 moves into the limiting positioning ring 41, under the action of the third spring 42, the inclined surface at the bottom of the block 43 is pressed against the fixing ring 44, thereby blocking the fixing ring 44. At this time, as the first gas pipeline 29 moves upward, the limiting ring 31 slides in the slide groove , compressing the first spring 32. When the internal pressure of the first spring 32 reaches the limit, as the first gas pipeline 29 continues to move upward, the fixing ring 44 presses against the inclined surface at the bottom of the block 43 and pushes the block 43 to move, compressing the third spring 42. When the fixing ring 44 is separated from the block 43, under the action of the first spring 32, the second gas pipeline 30 and the heating pipe 33 are pushed to move upward quickly and vibrate, thereby reciprocating. Through the provision of several fixing rings 44, when the first gas pipeline 29 is moved upward, the second gas pipeline 30 and the heating pipe 33 can be driven to vibrate multiple times, so as to shake off the waste asphalt concrete adhered to the second gas pipeline 30 and the heating pipe 33.

[0038] Specifically, a material accumulation chamber 20 is opened inside the guide block 19, a feed hopper 22 is fixedly connected to the top of the guide block 19, a plurality of second feed ports 21 are opened at equal intervals on the top of the guide block 19, the second feed ports 21 are located inside the feed hopper 22, the second feed ports 21 are communicated with the material accumulation chamber 20, and a material discharge assembly is opened on the outer wall of the first pipe 8.

[0039] Through the above technical scheme, when waste asphalt concrete is loaded into the tank bottom 1 and starts to be heated, an appropriate amount of regeneration agent is put into the feed hopper 22 along the first feed port 6, and the regeneration agent entering the feed hopper 22 falls into the material accumulation chamber 20 along the second feed port 21. The first pipeline 8 rotates while cooperating with the feeding assembly, so that the regeneration agent in the material accumulation chamber 20 can be intermittently dropped downward. By intermittently dropping the regeneration agent, the regeneration agent can be distributed more evenly in the waste asphalt concrete, avoiding the situation where the concentration of the regeneration agent in a local area is too high or too low, and the volatilization of the light components in the regeneration agent can be reduced.

[0040] Specifically, the unloading component includes a second feed trough 24, which is opened on the outer wall of the first pipe 8, a first feed trough 23 is opened inside the guide block 19, the first feed trough 23 is communicated with the material accumulation chamber 20, the first feed trough 23 and the second feed trough 24 are located in the same horizontal plane, a first discharge trough 25 is opened on the outer wall of the first pipe 8 and located below the cam 40, a second discharge trough 26 is opened on the outer wall of the second pipe 9 and located above the baffle 28, and the first discharge trough 25 and the second discharge trough 26 are located in the same horizontal plane.

[0041] Through the above technical solution, the first pipeline 8 rotates and drives the second feed trough 24 to rotate at the same time. When the second feed trough 24 rotates to a position aligned with the first feed trough 23, the regeneration agent in the accumulation chamber 20 enters the first pipeline 8 along the first feed trough 23 and the second feed trough 24, and flows downward along the first pipeline 8. When the second feed trough 24 rotates to a position misaligned with the first feed trough 23, the first feed trough 23 is blocked and the discharge is stopped. The regeneration agent entering the first pipeline 8 flows out along the first discharge trough 25 and the second discharge trough 26, and passes through the guide at the top of the baffle 28, so that the regeneration agent falls into the waste asphalt concrete. Therefore, as the first pipeline 8 rotates, the regeneration agent in the accumulation chamber 20 can be discharged intermittently.

[0042] An operating method of a recycling and processing device for urban road asphalt concrete, the operating method is applicable to the above-mentioned recycling and processing device for urban road asphalt concrete, and the steps of the operating method are as follows: S1: Put the waste asphalt concrete into the tank bottom 1 through the first feed port 6, start the air pump 15, draw the outside air into the tank bottom 1 through the air inlet pipe 16 and the second pipe 9, heat the air entering the second pipe 9 through the heating wire 14, and the heated hot air heats and softens the waste asphalt concrete in the tank bottom 1; S2: starting the motor 7 to drive the first pipe 8 and the second pipe 9 to rotate, so that the plurality of stirring rods 10 stir the waste asphalt concrete; S3: Put a proper amount of regeneration agent into the material accumulation chamber 20 along the feed hopper 22, and the first pipe 8 rotates to intermittently sprinkle the regeneration agent in the material accumulation chamber 20 into the waste asphalt concrete; S4: Start the motor 7 to control the cam 40 to rotate, drive the piston plate 35 to move back and forth, extract the hot air at the angle between the guide plate 17 and the tank top 2 and squeeze it downward, so that the hot air floating upward is recycled.

[0043] When in use, the waste asphalt concrete is put into the tank top 2 along the first feed port 6, the waste asphalt concrete flows downward along the top of the guide plate 17 and the top of the guide block 19, and falls into the tank bottom 1. The air pump 15 is started to draw the outside air into the cavity 12 along the air inlet pipe 16, and the air is heated by the heating wire 14. After the air entering the cavity 12 is heated, it enters the second pipe 9 along the air inlet 13, and the hot air flows along the second pipe 9 and is discharged from the air outlet 27, heating and softening the waste asphalt concrete in the tank bottom 1. The hot air discharged from the air outlet 27 hits the bottom of the baffle 28 and flows along the inclined surface of the bottom of the baffle 28, thereby allowing the hot air entering the tank bottom 1 to flow downward, which is convenient for heating the waste asphalt concrete below. , and the downward flow of hot air can prevent the hot air from floating upward directly, thereby improving the efficiency of heating the waste asphalt concrete. The motor 7 is started to drive the first pipe 8 to rotate, so that the second pipe 9 rotates, and drives a plurality of stirring rods 10 to rotate. The waste asphalt concrete is stirred by the plurality of stirring rods 10, so that the waste asphalt concrete and the hot air are evenly mixed. When the waste asphalt concrete is loaded into the tank bottom 1 and heating begins, an appropriate amount of regeneration agent is put into the feed hopper 22 along the first feed port 6, and the regeneration agent entering the feed hopper 22 falls into the material accumulation chamber 20 along the second feed port 21. The first pipe 8 rotates while driving the second feed trough 24 to rotate. When the second feed trough 24 rotates to a position aligned with the first feed trough 23, the regeneration agent in the material accumulation chamber 20 is The raw agent enters the first pipeline 8 along the first feed trough 23 and the second feed trough 24, and flows downward along the first pipeline 8. When the second feed trough 24 rotates to a position misaligned with the first feed trough 23, the first feed trough 23 is blocked and the feeding is stopped. The regenerated agent entering the first pipeline 8 flows out along the first discharge trough 25 and the second discharge trough 26, and passes through the guide at the top of the baffle 28, so that the regenerated agent falls into the waste asphalt concrete. As a result, with the rotation of the first pipeline 8, the regenerated agent in the accumulation chamber 20 can be intermittently discharged. By intermittently feeding the regenerated agent, the regenerated agent can be distributed more evenly in the waste asphalt concrete, avoiding the situation where the concentration of the regenerated agent in a local area is too high or too low, and the volatilization of the light components in the regenerated agent can be reduced. After floating upward, it flows through the guiding side of the bottom slope of the guide block 19 to prevent the hot gas from being discharged from the first feed port 6, and is guided by the bottom of the guide plate 17 to make the hot gas accumulate at the angle between the guide plate 17 and the tank top 2. The second pipe 9 rotates and drives the cam 40 to rotate. When the raised end of the cam 40 rotates to a position close to the top plate 37, the top plate 37 is pushed to move under the extrusion of the cam 40, driving the piston rod 36 to move, so that the piston plate 35 slides in the sleeve box 34. The top plate 37 moves and the second spring 38 is pressed. When the raised end of the cam 40 rotates to a position away from the top plate 37, the top plate 37 is pushed to reset under the action of the second spring 38, so that the piston plate 35 moves back, thus reciprocating. While the cam 40 rotates,The piston plate 35 is driven to move back and forth left and right in the sleeve box 34. When the piston plate 35 moves to the side away from the first gas pipeline 29, the two one-way valves 39 are used to draw the hot air at the angle between the guide plate 17 and the tank top 2 into the sleeve box 34 along the air outlet 45 and the first gas pipeline 29. When the piston plate 35 moves to the side close to the first gas pipeline 29, the two one-way valves 39 are used to squeeze the hot air in the sleeve box 34 downward along the first gas pipeline 29 and the second gas pipeline 30, so that the hot air floating upward can heat the waste asphalt concrete below again, and the hot air is circulated. The method improves the efficiency of hot air use. The side plates 46 can block the hot air floating upward to prevent the hot air from floating upward quickly, thereby increasing the contact time between the hot air and the waste asphalt concrete. The hot air transported downward enters the heating pipe 33 and flows in the disc-shaped heating pipe 33. The disc-shaped heating pipe 33 increases the contact area between the hot air and the waste asphalt concrete, thereby improving the heating effect of the hot air on the waste asphalt concrete and facilitating the hot air to heat the waste asphalt concrete accumulated inside. After the hot regeneration of the waste asphalt concrete is completed, the hydraulic cylinder 5 is started to push The tank top 2 moves upward to separate the tank top 2 from the tank bottom 1, thereby facilitating the removal of the waste asphalt concrete after thermal regeneration. The tank top 2 moves upward while driving the first gas pipeline 29, the second gas pipeline 30, and the heating pipe 33 to move upward at the same time. When the fixing ring 44 on the outer wall of the second gas pipeline 30 moves into the limiting positioning ring 41, under the action of the third spring 42, the inclined surface at the bottom of the block 43 presses against the fixing ring 44, thereby blocking the fixing ring 44. At this time, as the first gas pipeline 29 moves upward, the limiting ring 31 slides in the slide groove, pressing the first spring 32. When the first spring 3 After the internal pressure reaches the limit, as the first gas pipeline 29 continues to move upward, the fixing ring 44 presses against the inclined surface at the bottom of the block 43 and pushes the block 43 to move, compressing the third spring 42. When the fixing ring 44 is separated from the block 43, under the action of the first spring 32, the second gas pipeline 30 and the heating pipe 33 are pushed to move upward quickly and vibrate, thus reciprocating. Through the plurality of fixing rings 44, when the first gas pipeline 29 is moved upward, the second gas pipeline 30 and the heating pipe 33 can be driven to vibrate multiple times, so as to shake off the waste asphalt concrete adhered to the second gas pipeline 30 and the heating pipe 33.

[0044] The above-mentioned front, back, left, right, top and bottom are all based on the figures in the specification. Figure 1 As a benchmark, according to the person's observation perspective, the side of the device facing the observer is defined as the front, the left side of the observer is defined as the left, and so on.

[0045] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the scope of protection of the present invention.

[0046] The above shows and describes the basic principles, main features and advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A recycling and processing device for asphalt concrete of urban construction roads, characterized in that: The invention comprises a tank bottom (1), wherein a tank top (2) is arranged on the top of the tank bottom (1), a first support ring (3) is fixedly connected to the outer wall of the tank bottom (1), a second support ring (4) is fixedly connected to the outer wall of the tank top (2), a hydraulic cylinder (5) is fixedly connected to the top of the first support ring (3), an output end of the hydraulic cylinder (5) is fixedly connected to the second support ring (4), a first feed port (6) is opened on the top of the tank top (2), a guide plate (17) is fixedly connected to the top of the inner wall of the tank top (2), a connecting frame (18) is fixedly connected to the bottom of the connecting frame (18), a guide block (19) is fixedly connected to the bottom of the guide block (19), and the guide block (19) is fixedly connected to the inner wall of the tank top (2). ) are both arranged as annular inclined surfaces, the top of the tank top (2) is fixedly connected to a motor (7), the output end of the motor (7) passes through the tank top (2) and is fixedly connected to a first pipe (8), the first pipe (8) passes through a guide block (19) and is rotatably connected to the guide block (19), a second pipe (9) is slidably connected to the outer wall of the first pipe (8) and located below the guide block (19), the bottom of the second pipe (9) passes through the tank bottom (1), a heating component is arranged on the outer wall of the second pipe (9) and located below the tank bottom (1), and a plurality of stirring rods (10) are equidistantly fixedly connected to the outer wall of the second pipe (9) and located inside the tank bottom (1).

2. The recycling and processing device for asphalt concrete of urban road construction according to claim 1 is characterized in that: The heating assembly comprises a sleeve (11), the sleeve (11) being arranged on the outer wall of the second pipe (9) and being rotatably connected to the second pipe (9), a cavity (12) being provided inside the sleeve (11), an air inlet (13) being provided on the outer wall of the second pipe (9), the air inlet (13) being located inside the cavity (12), a heating wire (14) being provided inside the cavity (12), an air pump (15) being fixedly connected to the bottom of the tank bottom (1), an output end of the air pump (15) being connected to an air inlet pipe (16), one end of the air inlet pipe (16) extending into the cavity (12), and an air outlet (27) being provided on the outer wall of the second pipe (9) and located above the air inlet (13).

3. The recycling and processing device for asphalt concrete of urban road construction according to claim 2 is characterized in that: A baffle (28) is fixedly connected to the outer wall of the second pipe (9) and located above the air outlet (27), and the bottom of the baffle (28) is arranged as an annular inclined surface.

4. The recycling and processing device for asphalt concrete of urban road construction according to claim 3 is characterized in that: A plurality of first gas pipelines (29) are fixedly connected at equal intervals to the bottom of the guide plate (17); an air exhaust port (45) is provided on the outer wall of the first gas pipeline (29); a second gas pipeline (30) is slidably connected to the inner wall of the first gas pipeline (29); a sleeve (34) is fixedly connected to the outer wall of the first gas pipeline (29); two one-way valves (39) are symmetrically arranged on the inner wall of the first gas pipeline (29) with the sleeve (34) as the center; the two one-way valves (39) are both opened downward; a hot air circulation component is arranged inside the sleeve (34); side plates (46) are fixedly connected to both sides of the sleeve (34); the side plates (46) are arranged in an arc shape.

5. The recycling and processing device for asphalt concrete of urban road construction according to claim 4 is characterized in that: The hot gas circulation component comprises a piston plate (35), wherein the piston plate (35) is arranged on the inner wall of the sleeve (34) and is slidably connected to the sleeve (34); a piston rod (36) is fixedly connected to one side of the piston plate (35); one end of the piston rod (36) passes through the sleeve (34) and is fixedly connected to a top plate (37); a second spring (38) is sleeved on the outer wall of the piston rod (36); one end of the second spring (38) is fixedly connected to the sleeve (34); the other end of the second spring (38) is fixedly connected to the top plate (37); and a cam (40) is fixedly connected to the outer wall of the second pipe (9); the cam (40) is used in conjunction with the top plate (37).

6. The recycling and processing device for asphalt concrete of urban road construction according to claim 5 is characterized in that: A heating pipe (33) is fixedly connected to the bottom of the second gas transmission pipeline (30), and the heating pipe (33) is arranged in a disc shape.

7. The recycling and processing device for asphalt concrete of urban road construction according to claim 6 is characterized in that: The outer wall of the second gas pipeline (30) is fixedly connected to a limiting ring (31); the inner wall of the first gas pipeline (29) is provided with a slide groove, the limiting ring (31) fits the inner wall of the slide groove; the outer wall of the second gas pipeline (30) is sleeved with a first spring (32); the bottom of the first spring (32) is fixedly connected to the first gas pipeline (29); the top of the first spring (32) is fixedly connected to the limiting ring (31); the inner wall of the tank bottom (1) is equidistantly fixedly connected to a plurality of positioning rings (41); the inner opening of the positioning rings (41) is A through groove for use with a second gas pipeline (30) is provided, and two clamping blocks (43) are symmetrically slidably connected to the inner wall of the positioning ring (41), one end of the clamping block (43) extends into the interior of the through groove, and the other end of the clamping block (43) is fixedly connected to a third spring (42), one end of the third spring (42) is fixedly connected to the positioning ring (41), and the top and bottom of the clamping block (43) are both arranged as inclined surfaces, and a plurality of fixing rings (44) are fixedly connected to the outer wall of the second gas pipeline (30) and located below the positioning ring (41) at equal distances.

8. The recycling and processing device for asphalt concrete of urban road construction according to claim 7 is characterized in that: A material accumulation chamber (20) is provided inside the guide block (19), a feed hopper (22) is fixedly connected to the top of the guide block (19), a plurality of second feed ports (21) are equidistantly provided on the top of the guide block (19), the second feed ports (21) are located inside the feed hopper (22), the second feed ports (21) are communicated with the material accumulation chamber (20), and a material discharge assembly is provided on the outer wall of the first pipe (8).

9. The recycling and processing device for asphalt concrete of urban road construction according to claim 8 is characterized in that: The material discharge assembly comprises a second feed trough (24), the second feed trough (24) being provided on the outer wall of the first pipe (8), a first feed trough (23) being provided inside the guide block (19), the first feed trough (23) being communicated with the material accumulation chamber (20), the first feed trough (23) and the second feed trough (24) being located on the same horizontal plane, a first discharge trough (25) being provided on the outer wall of the first pipe (8) and located below the cam (40), a second discharge trough (26) being provided on the outer wall of the second pipe (9) and located above the baffle (28), the first discharge trough (25) and the second discharge trough (26) being located on the same horizontal plane.

10. An operating method for a recycling and processing device for asphalt concrete of urban roads, the operating method is applicable to the recycling and processing device for asphalt concrete of urban roads as claimed in claim 9, characterized in that: The steps for this operation are as follows: S1: waste asphalt concrete is placed into the tank bottom 1 through the first feed port (6), the air pump (15) is started, and the outside air is pumped into the tank bottom (1) through the air inlet pipe (16) and the second pipe (9), and the air entering the second pipe (9) is heated by the heating wire (14), and the heated hot air heats and softens the waste asphalt concrete in the tank bottom (1); S2: starting the motor (7) to drive the first pipe (8) and the second pipe (9) to rotate, so that the plurality of stirring rods (10) stir the waste asphalt concrete; S3: placing an appropriate amount of regeneration agent into the material accumulation chamber (20) along the feed hopper (22), and while the first pipe (8) rotates, the regeneration agent in the material accumulation chamber (20) is intermittently sprinkled into the waste asphalt concrete; S4: The motor (7) is started to control the cam (40) to rotate, thereby driving the piston plate (35) to move back and forth, extracting the hot air at the angle between the guide plate (17) and the tank top (2) and squeezing it downward, so that the hot air floating upward is recycled.

Images