Unmanned asphalt concrete paver with gas purification function

Abstract

This invention relates to the field of asphalt paving equipment and discloses an unmanned asphalt concrete paver with gas purification function. The paver includes a paving device, an asphalt tank, and a material conveying pipe. The paving device and the asphalt tank are connected via the material conveying pipe. The asphalt tank is loaded with asphalt to be paved. The lower end of the movable plate in this invention has inclined surfaces on both sides near the flame injector. Each inclined surface is provided with a dust suction port for adsorbing smoke and dust. The two dust suction ports are connected by a connecting channel. The end of the connecting channel is connected to a negative pressure channel located within the movable plate. The end of the negative pressure channel is connected to an external air pump via a negative pressure connecting pipe to create negative pressure at the dust suction port to adsorb smoke and dust. By directly setting dust suction ports near the flame injector and utilizing the negative pressure generated by the negative pressure channel and the air pump, this invention can efficiently adsorb and collect the smoke and dust generated during the heating of asphalt.

Description

Technical Field

[0001] This invention relates to the field of asphalt paving equipment, specifically to an unmanned asphalt concrete paver with gas purification function. Background Technology

[0002] While traditional unmanned pavers offer significant advantages in improving construction efficiency and reducing labor costs during asphalt concrete pavement laying, they still have obvious shortcomings in terms of environmental protection and the health of construction workers. Existing asphalt paving equipment requires secondary heating of the asphalt laid on the road surface by spraying open flames through a heating mechanism. However, most existing asphalt paving drones do not have effective gas purification devices or place the gas purification devices far away from the heating mechanism, resulting in insufficient adsorption and treatment of the smoke and dust generated during construction. This poses a potential threat to the environment and the health of construction workers. Summary of the Invention

[0003] This invention provides an unmanned asphalt concrete paver with gas purification function, which overcomes the shortcomings described in the background art.

[0004] The technical solution adopted by this invention to solve its technical problem is:

[0005] An unmanned asphalt concrete paver with gas purification function includes a paving device, an asphalt tank, and a material conveying pipe. The paving device and the asphalt tank are connected by the material conveying pipe. The asphalt tank is loaded with asphalt to be paved, and the asphalt is conveyed to the paving device through the material conveying pipe.

[0006] The paving device includes a movable plate 1, a movable plate 2, and a connecting plate. The movable plate 2 is swayed and installed on the movable plate 1 via the connecting plate. The surface of the movable plate 1 is provided with an asphalt channel that is connected to a material conveying pipe. The surface of the movable plate 2 is provided with a slope near the asphalt channel and a corresponding connecting discharge port is provided. The slope is inclined. The material conveying pipe is connected to the connecting discharge port through the asphalt channel to convey asphalt to the connecting discharge port.

[0007] The lower side of the movable plate is provided with a sprayer mounting cavity, and a flame sprayer for spraying open flame to heat asphalt is installed in the sprayer mounting cavity. Lugs are provided on the left and right sides of the flame sprayer. Slide grooves are provided on the surface of the movable plate and at the corresponding positions of all lugs. All lugs protrude from the surface of the movable plate through the corresponding slide grooves. Electric push rods connected to the lugs are provided on both sides of the movable plate to drive the flame sprayer to rise and fall.

[0008] The lower end of the movable plate body two is inclined at both sides near the flame injector. Both inclined surfaces are provided with dust suction ports for adsorbing smoke and dust. The two dust suction ports are connected by a connecting channel. The end of the connecting channel is connected to a negative pressure channel provided in the movable plate body one. The end of the negative pressure channel is connected to an external air pump through a negative pressure connecting pipe to create negative pressure at the dust suction port to adsorb smoke and dust.

[0009] Two magnetic blocks are respectively set on both sides of the connecting channel. At the corresponding positions of the movable plate and the two magnetic blocks, three magnetic blocks are respectively set to attract each other. When the movable plate and the movable plate are in contact, the magnetic blocks are attracted to each other. Neither the magnetic blocks are protruding from the surface of the movable plate or the movable plate.

[0010] A preferred technical solution includes a filter separation component connected to two suction ports within the connecting channel. The filter separation component contains two channels: channel one and channel two. Channel one's two ends are connected to the two suction ports respectively. One end of channel two is connected to the middle of channel one, and the other end is connected to the connecting channel.

[0011] Two sets of protrusions are symmetrically arranged in the middle of the first channel. Each set of protrusions includes two protrusions arranged vertically. The inner side of the first channel forms an arch-shaped cavity through the two sets of protrusions. The arch-shaped cavity forms a collection dish through the two protrusions located on the lower side. A filter cotton sheet is provided at the connection between the second channel and the first channel. The collection dish is located directly below the filter cotton sheet.

[0012] One-way valves are installed at both ends of the channel, and the airflow from the dust inlet into the channel flows in the direction of low air resistance of the two one-way valves.

[0013] In a preferred embodiment, the flame injector is connected to the gas supply end through a tensioning connecting pipe. The tensioning connecting pipe includes a rubber connector and a gas supply pipe. The flame injector is connected to the gas supply pipe through the rubber connector. The gas supply pipe is wound around a spring tensioning disc so that the gas supply pipe can be contracted by the spring tensioning disc, so that the gas supply pipe can be kept taut during the swing of the movable plate.

[0014] The upper end of the rubber connector is provided with an inwardly recessed stepped edge, and the surface of the stepped edge is provided with a raised threaded tube. During connection, the end of the gas supply pipe abuts against the surface of the stepped edge at the upper end of the rubber connector and forms a threaded connection with the threaded tube.

[0015] The gas supply pipe and the rubber connector form an interference fit connection.

[0016] In a preferred embodiment, a drive cylinder is oscillatingly mounted on the upper end of the second movable plate. The output shaft of the drive cylinder is connected to the first movable plate to drive the output shaft of the drive cylinder to extend and retract, thereby controlling the oscillation of the second movable plate.

[0017] In a preferred embodiment, a centrifugal motor is also provided on the outer side of the movable plate, with the centrifugal motor located at the end of the slope away from the discharge port.

[0018] A preferred technical solution is that the surface of the asphalt tank is provided with a gradually deepening groove, and the bottom of the gradually deepening groove is provided with a discharge port connected to a material conveying pipe, so asphalt can be conveyed into the material conveying pipe through the discharge port.

[0019] Compared with existing technologies, this technical solution has the following advantages:

[0020] In this invention, the lower end of the movable plate near the flame injector has inclined surfaces on both sides. Each inclined surface is provided with a dust suction port for adsorbing smoke and dust. The two dust suction ports are connected by a connecting channel. The end of the connecting channel is connected to a negative pressure channel located inside the movable plate. The end of the negative pressure channel is connected to an external air pump through a negative pressure connecting pipe to create negative pressure at the dust suction port to adsorb smoke and dust. By directly setting dust suction ports near the flame injector and utilizing the negative pressure generated by the negative pressure channel and the air pump, this invention can efficiently adsorb and collect the smoke and dust generated during the heating of asphalt, significantly reducing the potential threat of smoke and dust to the environment and the health of construction workers. Attached Figure Description

[0021] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0022] Figure 1 This is an overall diagram of the present invention.

[0023] Figure 2 This is a schematic diagram of the paving device.

[0024] Figure 3 This is a schematic diagram of the movable board.

[0025] Figure 4 This is a schematic diagram of a flamethrower.

[0026] Figure 5 This is a schematic diagram of a rubber connector.

[0027] Figure 6 This is a schematic diagram of an asphalt storage tank.

[0028] Figure 7 This is a schematic diagram of the movable plate, connecting plate, and drive cylinder.

[0029] Figure 8 This is a schematic diagram of the movable board.

[0030] Figure 9 This is a bottom view of the movable panel.

[0031] Figure 10This is a cross-sectional view of the movable plate.

[0032] Figure 11 for Figure 10 A side view diagram.

[0033] Figure 12 This is a schematic diagram of the filter separation component.

[0034] In the diagram: paving device 1, movable plate 11, movable plate 2 12, flame injector 13, electric push rod 14, connecting plate 15, drive cylinder 16;

[0035] Asphalt channel 111, negative pressure channel 112, negative pressure connecting pipe 1121, magnetic block 3 113;

[0036] 121. Inclined ramp 122. Centrifugal motor 123. Dust suction port 123. Connecting channel 1231. Injector mounting cavity 124. Slide 125. Magnetic block 2 126. Connecting discharge port 127.

[0037] Filter separation component 100, channel one 101, channel two 102, protrusion block 103, one-way valve 104, filter cotton sheet 105;

[0038] Rubber connector 131, threaded protruding tube 1311, gas supply pipe 132, toggle spring tensioning disc 1321;

[0039] Asphalt storage tank 2, gradually deepening trench 21, discharge outlet 22;

[0040] Material conveying pipe 3. Detailed Implementation

[0041] like Figures 1 to 7 As shown, the present invention proposes an unmanned asphalt concrete paver with gas purification function, including a paving device 1, an asphalt tank 2 and a material conveying pipe 3. The paving device 1 and the asphalt tank 2 are connected by the material conveying pipe 3. The asphalt tank 2 is loaded with asphalt to be paved, so that the asphalt can be conveyed to the paving device 1 through the material conveying pipe 3.

[0042] The paving device 1 includes a movable plate 11, a movable plate 2 12, and a connecting plate 15. The movable plate 2 12 is swayed and installed on the movable plate 11 via the connecting plate 15. The surface of the movable plate 11 is provided with an asphalt channel 111 that is connected to the material conveying pipe 3. The surface of the movable plate 2 12 is provided with a slope 121 near the asphalt channel 111, and a corresponding connecting discharge port 127 is provided. The slope 121 is inclined. The material conveying pipe 3 is connected to the connecting discharge port 127 via the asphalt channel 111 to convey asphalt to the connecting discharge port 127.

[0043] The lower side of the movable plate 12 is provided with a sprayer mounting cavity 124. A flame sprayer 13 for heating asphalt by spraying open flame is installed in the sprayer mounting cavity 124. Lugs are provided on the left and right sides of the flame sprayer 13. Slide grooves 125 are provided on the surface of the movable plate 12 at the corresponding positions of all lugs. All lugs protrude from the surface of the movable plate 12 through the corresponding slide grooves 125. Electric push rods 14 connected to the lugs are provided on both sides of the movable plate 12 to drive the flame sprayer 13 to rise and fall. The flame sprayer 13 is driven to rise and fall by two electric push rods 14, which produces a significant effect when heating asphalt and can effectively avoid damage to the flame sprayer 13 caused by road bumps during movement.

[0044] Specifically, the precise control of the electric push rod 14 allows the height of the flame injector 13 to be flexibly adjusted to adapt to asphalt layers of different thicknesses and materials. During the heating process, the flame injector 13 can maintain a constant distance from the asphalt surface, ensuring that the asphalt is heated evenly and improving the paving quality. More importantly, when the unmanned paver moves on uneven road surfaces, it may encounter road bumps or other obstacles. By driving the flame injector 13 to rise and fall through the electric push rod 14, its height can be quickly adjusted to avoid direct collisions with obstacles. This flexible lifting mechanism not only protects the flame injector 13 from damage but also ensures the continuity and stability of the paving operation.

[0045] The lower end of the movable plate 12, near the flame injector 13, has inclined surfaces on both sides. Each inclined surface is provided with a dust suction port 123 for adsorbing smoke and dust. The two dust suction ports 123 are connected by a connecting channel 1231. The end of the connecting channel 1231 is connected to a negative pressure channel 112 located in the movable plate 11. The end of the negative pressure channel 112 is connected to an external air pump through a negative pressure connecting pipe 1121 to create negative pressure at the dust suction port 123 to adsorb smoke and dust. By directly setting dust suction ports near the flame injector and utilizing the negative pressure generated by the negative pressure channel and the air pump, the present invention can efficiently adsorb and collect the smoke and dust generated during the heating of asphalt, significantly reducing the potential threat of smoke and dust to the environment and the health of construction workers.

[0046] The suction ports 123 are located on both sides of the flame injector 13. This design has significant advantages for efficiently adsorbing the fumes generated when baking asphalt with an open flame. First, during the process of baking asphalt with an open flame, the fumes tend to spread rapidly with the combustion of the flame and the heating of the asphalt. Placing the suction ports 123 on both sides of the flame injector 13 can directly capture these newly generated, high-concentration fumes, effectively reducing the escape and diffusion range of the fumes. Second, when the flame injector 13 is working, the airflow around it will form a certain airflow field. Placing the suction ports 123 here can make full use of this airflow field, guiding the fumes to enter the suction ports more smoothly, improving the adsorption efficiency of the fumes. Finally, this layout also helps to maintain the shortest distance between the suction ports 123 and the fumes source, thereby minimizing the residence time of the fumes in the air and reducing potential hazards to the environment and construction personnel. Therefore, the design of placing the suction ports 123 on both sides of the flame injector 13 is the key to achieving efficient fumes adsorption.

[0047] Magnetic blocks 126 are respectively provided on both sides of the connecting channel 1231. Magnetic blocks 113 are respectively provided at the corresponding positions of the movable plate 11 and the two magnetic blocks 126 to attract each other. When the movable plate 12 and the movable plate 11 are in contact, the magnetic blocks 126 and the magnetic blocks 113 attract each other. Neither the magnetic blocks 126 nor the magnetic blocks 113 protrude from the surface of the movable plate 12 or the movable plate 11.

[0048] In a preferred embodiment, a filter separation component 100 connected to two suction ports 123 is provided within the connecting channel 1231. The filter separation component 100 contains a first channel 101 and a second channel 102. The two ends of the first channel 101 are connected to the two suction ports 123 respectively. One end of the second channel 102 is connected to the middle of the first channel 101, and the other end is connected to the connecting channel 1231. Two sets of protrusions are symmetrically arranged in the middle of the first channel 101, each set of protrusions including two upper and lower protrusions. The protrusion 103 is placed inside the channel 101. The two sets of protrusions on the left and right sides form an arc-shaped cavity. The arc-shaped cavity forms a collection dish through the two protrusions 103 located on the lower side. A filter cotton sheet 105 is provided at the connection between the channel 2 102 and the channel 101. The collection dish is located directly below the filter cotton sheet 105. One-way valves 104 are provided at both ends of the channel 101. The airflow from the dust suction port 123 into the channel 101 is in the low-resistance direction of the two one-way valves 104.

[0049] Under negative pressure, the airflow direction in the connecting channel 1231 and the internal filter separation component 100 is clear and efficient. First, when the external air pump is started and creates negative pressure at the suction port 123, the airflow is attracted and enters from the two suction ports 123. This airflow then enters the channel 101. Since one-way valves 104 are provided at both ends of the channel 101, and the airflow from the suction port 123 into the channel 101 is in the direction of low airflow resistance of the one-way valve 104, the airflow can smoothly enter the channel 101 through the one-way valve 104.

[0050] Inside channel 101, the airflow first encounters a bow-shaped cavity formed by two sets of protrusions. This specially designed cavity not only increases the path length of the airflow, but also forms a collection dish through the two protrusions 103 located on the lower side. When the airflow passes through the bow-shaped cavity, due to inertia and collision, larger solid particles, such as particulate matter in smoke and dust, will be separated and fall into the collection dish.

[0051] Subsequently, the airflow continues to flow to the middle of channel 101 and connects with channel 2 102. At the connection point, a filter cotton sheet 105 is installed. This filter cotton sheet 105 plays a further filtration role, capturing the remaining tiny particles in the airflow and ensuring that only clean airflow can pass through and enter the subsequent part of the connecting channel 1231. Finally, the filtered and separated airflow will pass through the connecting channel 1231 and be discharged into the external environment, while solid particles will be accumulated in the collection dish in the middle of channel 101 for easy subsequent cleaning and treatment.

[0052] In a preferred embodiment, the flame injector 13 is connected to the gas supply end via a tensioning connecting pipe. The tensioning connecting pipe includes a rubber connector 131 and a gas supply pipe 132. The flame injector 13 is connected to the gas supply pipe 132 via the rubber connector 131. The gas supply pipe 132 is wound around a spring tensioning disc 1321 so that the spring tensioning disc 1321 can contract the gas supply pipe 132, allowing the gas supply pipe 132 to remain taut during the swinging of the movable plate 12. If there is no appropriate mechanism to maintain the tautness and positioning of the gas supply pipe 132 during the swinging operation of the movable plate 12, the gas supply pipe 132 may be clamped due to improper positioning when the movable plate 12 swings to a certain position and is ready to close. This would not only damage the integrity of the gas supply pipe, potentially leading to safety hazards such as gas leaks, but also affect the normal operation of the flame injector 13, and could even cause the entire unmanned paver system to malfunction. Therefore, the spring tensioning disc 1321 ensures that the gas supply pipe 132 remains taut in any swing position through the continuous elastic force provided by its built-in spring, thereby effectively avoiding the risk of being clamped.

[0053] The upper end of the rubber connector 131 is provided with an inwardly recessed step edge, and the surface of the step edge is provided with a protruding threaded tube 1311. When connected, the end of the gas supply pipe 132 abuts against the surface of the step edge at the upper end of the rubber connector 131 and forms a threaded connection with the threaded tube 1311.

[0054] The gas supply pipe 132 and the rubber connector 131 form an interference fit connection.

[0055] Furthermore, a drive cylinder 16 is oscillatingly mounted on the upper end of the second movable plate 12. The output shaft of the drive cylinder 16 is connected to the first movable plate 11 to drive the output shaft of the drive cylinder 16 to extend and retract, thereby controlling the oscillation of the second movable plate 12.

[0056] Furthermore, a centrifugal motor 122 is also provided on the outer side of the movable plate 12, with the centrifugal motor 122 located at the end near the ramp 121 and away from the discharge port 127.

[0057] Furthermore, the surface of the asphalt tank 2 is provided with a gradually deepening groove 21, and the bottom of the gradually deepening groove 21 is provided with a discharge port 22 connected to the material conveying pipe 3, so asphalt can be conveyed into the material conveying pipe 3 through the discharge port 22.

[0058] The above description is merely a preferred embodiment of the present invention, and therefore should not be construed as limiting the scope of the present invention. All equivalent changes and modifications made in accordance with the scope of the patent and the contents of the specification should still fall within the scope of the present invention.

Claims

1. An unmanned asphalt concrete paver with gas purification function, characterized in that, It includes a paving device (1), an asphalt tank (2) and a material conveying pipe (3). The paving device (1) and the asphalt tank (2) are connected by the material conveying pipe (3). The asphalt tank (2) is loaded with asphalt to be paved, so that the asphalt can be conveyed to the paving device (1) through the material conveying pipe (3). The paving device (1) includes a movable plate one (11), a movable plate two (12) and a connecting plate (15). The movable plate two (12) is swayed and installed on the movable plate one (11) through the connecting plate (15). The surface of the movable plate one (11) is provided with an asphalt channel (111) connected to the material conveying pipe (3). The slope (121) provided on the surface of the movable plate two (12) is provided with a corresponding connecting discharge port (127) near the asphalt channel (111). The slope (121) is inclined. The material conveying pipe (3) is connected to the connecting discharge port (127) through the asphalt channel (111) so as to convey asphalt to the connecting discharge port (127) through the material conveying pipe (3). The lower side of the movable plate (12) is provided with a sprayer mounting cavity (124). A flame sprayer (13) for spraying open flame to heat asphalt is installed in the sprayer mounting cavity (124). Lugs are provided on the left and right sides of the flame sprayer (13). Slide grooves (125) are provided on the surface of the movable plate (12) at the corresponding positions of all the lugs. All the lugs protrude from the surface of the movable plate (12) through the corresponding slide grooves (125). Electric push rods (14) connected to the lugs are provided on both sides of the movable plate (12) to drive the flame sprayer (13) to rise and fall through the electric push rods (14). The lower end of the movable plate (12) near the flame injector (13) has inclined surfaces on both sides. Each inclined surface is provided with a dust suction port (123) for adsorbing smoke and dust. The two dust suction ports (123) are connected by a connecting channel (1231). The end of the connecting channel (1231) is connected to a negative pressure channel (112) provided in the movable plate (11). The end of the negative pressure channel (112) is connected to an external air pump through a negative pressure connecting pipe (1121) to create negative pressure at the dust suction port (123) to adsorb smoke and dust. Magnetic blocks 2 (126) are respectively provided on the left and right sides of the end of the connecting channel (1231). Magnetic blocks 3 (113) are respectively provided at the corresponding positions of the movable plate 1 (11) and the two magnetic blocks 2 (126). When the movable plate 2 (12) and the movable plate 1 (11) are in contact, the magnetic blocks 2 (126) and the magnetic blocks 3 (113) are attracted to each other. The magnetic blocks 2 (126) do not protrude from the surface of the movable plate 2 (12), and the magnetic blocks 3 (113) do not protrude from the surface of the movable plate 1 (11).

2. The unmanned asphalt concrete paver with gas purification function according to claim 1, characterized in that, The connecting channel (1231) is equipped with a filter separation component (100) that communicates with two suction ports (123). The filter separation component (100) is equipped with a channel one (101) and a channel two (102). The two ends of the channel one (101) are respectively connected to the two suction ports (123). One end of the channel two (102) is connected to the middle of the channel one (101), and the other end is connected to the connecting channel (1231). Two sets of protrusions are symmetrically arranged in the middle of the first channel (101). Each set of protrusions includes two protrusions (103) arranged vertically. The inner side of the first channel (101) forms an arch-shaped cavity through the two sets of protrusions. The arch-shaped cavity forms a collection dish through the two protrusions (103) located on the lower side. A filter cotton sheet (105) is provided at the connection between the second channel (102) and the first channel (101). The collection dish is located directly below the filter cotton sheet (105). One-way valves (104) are provided at both ends of the channel (101). The airflow from the dust inlet (123) into the channel (101) is in the direction of low airflow resistance of the two one-way valves (104).

3. The unmanned asphalt concrete paver with gas purification function according to claim 1, characterized in that, The flame injector (13) is connected to the gas supply end through a flexible connecting pipe. The flexible connecting pipe includes a rubber connector (131) and a gas supply pipe (132). The flame injector (13) is connected to the gas supply pipe (132) through the rubber connector (131). The gas supply pipe (132) is wound around a spring tensioning disc (1321) so that the gas supply pipe (132) can be contracted through the spring tensioning disc (1321). When the movable plate (12) swings, the gas supply pipe (132) is kept taut. The upper end of the rubber connector (131) is provided with an inwardly recessed step edge, and the surface of the step edge is provided with a protruding threaded protrusion (1311). When connected, the end of the gas supply pipe (132) abuts against the surface of the step edge at the upper end of the rubber connector (131) and forms a threaded connection with the threaded protrusion (1311). The gas supply pipe (132) and the rubber connector (131) form an interference fit connection.

4. The unmanned asphalt concrete paver with gas purification function according to claim 1, characterized in that, The upper end of the movable plate two (12) is equipped with a drive cylinder (16), and the output shaft of the drive cylinder (16) is connected to the movable plate one (11) to drive the output shaft of the drive cylinder (16) to extend and retract to control the swing of the movable plate two (12).

5. The unmanned asphalt concrete paver with gas purification function according to claim 1, characterized in that, A centrifugal motor (122) is also provided on the outside of the movable plate (12), with the centrifugal motor (122) located at the end near the ramp (121) and away from the connecting discharge port (127).

6. The unmanned asphalt concrete paver with gas purification function according to claim 1, characterized in that, The surface of the asphalt tank (2) is provided with a gradually deepening groove (21), and the bottom of the gradually deepening groove (21) is provided with a discharge port (22) connected to the material conveying pipe (3) so as to convey asphalt into the material conveying pipe (3) through the discharge port (22).

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