Device and method for removing asphalt from gravel surface

Abstract

The present invention provides a device and method for removing asphalt from the surface of gravel, comprising an outer layer of an outer shell which is an atomizing cavity with an opening at the lower end, a cavity in the middle, a fog cannon fixedly installed on the top, and the fog outlet of the fog cannon is connected to the atomizing cavity through an air outlet pipe, an air outlet is provided on the top of the outer shell, a lithium battery, a motor, and an ultrasonic generator are fixed in the cavity of the outer shell, the motor and the ultrasonic generator are electrically connected to the lithium battery, the output shaft of the motor is connected to the crankshaft through a coupling, a plurality of fan blades are fixedly connected to the upper end of the crankshaft, the middle is hinged to a connecting rod, and the lower end is fixedly connected to a disc-type mechanical cleaning brush. On the basis of mechanical rotary friction cleaning, the present invention adds ultrasonic cleaning and solvent cleaning, and utilizes the cavitation effect of ultrasonic cleaning to quickly dissolve the asphalt attached to the surface of gravel on the road surface, thereby greatly improving the asphalt removal efficiency of the equipment.

Description

Technical Field

[0001] The invention is used in the technical field of road asphalt removal devices, in particular to a device and a method for removing asphalt from the surface of gravel. Background Art

[0002] At present, the total mileage of highways in my country has reached 5.28 million kilometers, forming a national highway network with expressways as the skeleton, ordinary trunk roads as the veins, and rural roads as the foundation. Highway transportation is the most widely used mode of transportation with the widest coverage, the largest population, and the most extensive use. It is of great significance to maintain these large-scale highway assets and strengthen highway maintenance and management.

[0003] Asphalt roads are damaged due to long-term use, heavy-loaded vehicles moving back and forth and rolling over them. Damaged roads can pose a safety hazard to driving safety and cause traffic accidents. Therefore, damaged roads need to be repaired and restored in a timely manner. When repairing asphalt roads, the asphalt on the worn-out road surface needs to be cleaned. Currently, the asphalt cleaning method for damaged roads is mainly manual cleaning. First, the cleaning efficiency is low and the cleaning effect is poor. It is often difficult to clean the asphalt in one go. Second, a large amount of dust particles will be generated at the construction site, which will have a negative impact on air quality.

[0004] Therefore, it is very necessary to invent a device and a method for removing asphalt from the surface of gravel. Summary of the invention

[0005] In view of the defects of the prior art in that the removal efficiency of asphalt on the surface of highway gravel is low and a large amount of dust is caused to pollute the environment, a main purpose of the present invention is to provide a device and a method for removing asphalt on the surface of gravel.

[0006] In order to solve the above technical problems, the present invention provides a device for removing asphalt from the surface of sand and gravel, comprising an outer shell layer which is an atomizing cavity with an opening at the lower end, a cavity in the middle, a fog cannon fixedly installed on the top, and the fog outlet of the fog cannon is connected to the atomizing cavity through an air outlet pipe, an air outlet is provided on the top of the shell, a lithium battery, a motor, and an ultrasonic generator are fixed in the cavity of the shell, the motor and the ultrasonic generator are electrically connected to the lithium battery, the output shaft of the motor is connected to the crankshaft through a coupling, and a plurality of fan blades are fixed to the upper end of the crankshaft , the middle is hinged with the connecting rod, and the lower end is fixedly connected to the disc-type mechanical cleaning brush. A circular ultrasonic cleaning brush installed on the bracket is provided on the outside of the mechanical cleaning brush. A plurality of transducers are installed on the bracket, and the transducer is electrically connected to the ultrasonic generator. A cleaning brush is installed at the lower end of the connecting rod, and a pull-out collection drawer installed on the shell is provided directly behind the cleaning brush. A plurality of staggered windshields are fixedly connected to the top of the cavity, and a filter screen is provided on the windshield, and an observation port is provided on the shell facing the filter screen.

[0007] A method for removing asphalt from the surface of gravel, characterized in that:

[0008] a. Road cleaning: Clean the gravel and dust on the road that needs to be repaired;

[0009] b. Spraying of cleaning agent: Spray the asphalt cleaning liquid evenly on the road surface to be repaired to make the road surface moist;

[0010] c. Asphalt removal: Turn on the asphalt removal device. First, the ultrasonic cleaning brush on the outer ring vibrates at ultrasonic frequency to clean the asphalt on the road surface using the ultrasonic cavitation effect generated by the road cleaning fluid, so that the asphalt is quickly dissolved; at the same time, the mechanical cleaning brush rotates to brush the asphalt on the gravel surface at high speed, so as to achieve the purpose of removing the asphalt on the gravel surface;

[0011] d. Asphalt collection: When the mechanical cleaning brush rotates, the cleaning brush on the connecting rod is pulled left and right by the crankshaft to collect the solid particles dropped after cleaning;

[0012] e. Dust removal: The fan blades on the crankshaft rotate at high speed, so that the dusty air generated by high-speed brushing of the asphalt pavement can pass through the lower air inlet, be blocked by multiple layers of inclined and staggered windshields and filtered by the filter net, and then the clean air is discharged through the air outlet; the atomized water mist generated by the fog cannon is discharged through the air outlet at the lower end of the annular atomization cavity, forming a two-stage enhanced dust removal system;

[0013] Furthermore, a visible cover is hingedly installed on the top of the fog cannon.

[0014] Furthermore, the fog cannon includes a water tank, a high-pressure water pump and an atomizing nozzle; the water inlet of the high-pressure water pump is connected to the water tank, and a plurality of atomizing nozzles are installed on the water outlet pipe of the high-pressure water pump, and the spray outlet of the atomizing nozzle faces directly downward.

[0015] Furthermore, a handle is fixedly connected to the left and right ends of the rear side of the shell respectively, the handle is hinged to the top of the support rod, a roller is fixedly connected to the lower end of the support rod, one end of the hydraulic rod is hinged to the shell, and the other end is hinged to the support rod.

[0016] The beneficial effects of the present invention are:

[0017] 1. The present invention adopts a nested two-stage cleaning mechanism. The inner circle adopts a mechanical cleaning mechanism, and the outer circle adopts an ultrasonic cleaning mechanism. One cleaning process is: ultrasonic vibration cleaning-mechanical cleaning-ultrasonic vibration cleaning. Three cleanings can be achieved in one push, which greatly improves the cleaning effect and efficiency and reduces the labor intensity.

[0018] 2. The present invention adopts a central negative pressure fan to absorb dust + an edge annular fog curtain to isolate and reduce dust, forming a two-stage enhanced dust removal system, forming a closed dust removal space at the dust generation point and isolating it from the outside atmosphere, greatly reducing the dust content in the air at the work site, and being environmentally friendly and energy-saving.

[0019] 3. The top of the housing of the present invention is provided with a plurality of staggered windshields, and large dust particles in the dust airflow can fall to the windshields under the action of gravity, thereby achieving self-weight dust removal without energy consumption, energy saving and environmental protection.

[0020] 4. The present invention adopts a crank-connecting rod mechanism to drive the cleaning brush to move back and forth through the rotation of the crankshaft, and the cleaning brush cleans the solid particles into the collection drawer. The structure is simple and reliable, and the cleaning is convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0022] Figure 1 It is the overall front view structure diagram of the present invention.

[0023] Figure 2 It is an overall top view of the structure of the present invention.

[0024] Figure 3 The present invention Figure 1 Partial structure diagram of the fog cannon.

[0025] Figure 4 The present invention Figure 1 Partial structure diagram of the cleaning brush.

[0026] Figure 5 It is a process flow diagram of the present invention.

[0027] In the figure,

[0028] 1-ultrasonic cleaning brush, 2-mechanical cleaning brush, 3-bracket, 4-transducer, 5-ultrasonic generator, 6-cleaning brush, 7-connecting rod, 8-collecting drawer, 9-atomizing chamber, 10-crankshaft, 11-hydraulic rod, 12-roller, 13-support rod, 14-lithium battery, 15-wind shield, 16-air outlet, 17-filter, 18-mist cannon, 19-visible cover, 20-air outlet pipe, 21-observation port, 22-motor, 23-housing, 24-fan blades, 25-handle, 26-water tank, 27-high-pressure water pump, 28-atomizing nozzle. DETAILED DESCRIPTION

[0029] The present invention is further described below in conjunction with the accompanying drawings and examples. The embodiments of the present invention include but are not limited to the following examples.

[0030] In order to achieve the above object, the technical solution adopted by the present invention is as follows:

[0031] like Figures 1 to 5 As shown, the device for removing asphalt from the surface of sand and gravel includes an outer layer of a shell 23, which is an atomizing cavity 9 with an opening at the lower end, a cavity in the middle, a fog cannon 18 fixedly installed on the top, and the fog outlet of the fog cannon 18 is connected to the atomizing cavity 9 through an air outlet pipe 20, an air outlet 16 is provided on the top of the shell 23, a lithium battery 14, a motor 22, and an ultrasonic generator 5 are fixed in the cavity of the shell 23, the motor 22 and the ultrasonic generator 5 are electrically connected to the lithium battery 14, the output shaft of the motor 22 is connected to the crankshaft 10 through a coupling, a plurality of fan blades 24 are fixedly connected to the upper end of the crankshaft 10, the middle is hinged to the connecting rod 7, and the lower end is fixedly connected to the disc-type mechanical cleaning brush 2, a circular ultrasonic cleaning brush 1 installed on the outer side of the mechanical cleaning brush 2 is provided, and a plurality of transducers 4 are installed on the bracket 3, and the transducer 4 is electrically connected to the ultrasonic generator 5, A cleaning brush 6 is installed at the lower end of the connecting rod 7, and a pull-out collecting drawer 8 installed on the shell 23 is provided directly behind the cleaning brush 6. A plurality of staggered windshield plates 15 are fixedly connected to the top of the cavity, and a filter screen 17 is provided on the windshield plate 15. An observation port 21 is provided on the shell 23 facing the filter screen 17.

[0032] A method for removing asphalt from the surface of gravel, characterized in that:

[0033] a. Road cleaning: Clean the gravel and dust on the road that needs to be repaired;

[0034] b. Spraying of cleaning agent: Spray the asphalt cleaning liquid evenly on the road surface to be repaired to make the road surface moist;

[0035] c. Asphalt removal: Turn on the asphalt removal device. First, the ultrasonic cleaning brush 1 on the outer ring vibrates at ultrasonic frequency to clean the asphalt on the road surface using the ultrasonic cavitation effect generated by the road cleaning fluid, so that the asphalt is quickly dissolved; at the same time, the mechanical cleaning brush 2 rotates to brush the asphalt on the gravel surface at high speed, so as to achieve the purpose of removing the asphalt on the gravel surface;

[0036] d. Asphalt collection: The mechanical cleaning brush 2 rotates while the cleaning brush 6 on the connecting rod 7 is pulled left and right by the crankshaft 10 to collect the solid particles that fall after being cleaned;

[0037] e. Dust removal: The fan blades 24 on the crankshaft 10 rotate at high speed, so that the dusty air generated by high-speed brushing of the asphalt road surface can pass through the lower air inlet, be blocked by multiple layers of inclined and staggered windshields 15 and filtered by the filter 17, and then the clean air is discharged through the air outlet 16; the atomized water mist generated by the fog cannon 18 is discharged through the air outlet at the lower end of the annular atomizing cavity 9, forming a two-stage enhanced dust removal system;

[0038] Furthermore, a visible cover 19 is hingedly installed on the top of the fog cannon 18. The water storage amount inside the water tank 26 can be observed through the visible cover 19, and water can be added to the water tank 26 through the visible cover 19 to ensure the normal operation of the fog cannon 18.

[0039] Furthermore, the fog cannon 18 includes a water tank 26, a high-pressure water pump 27 and an atomizing nozzle 28; the water inlet of the high-pressure water pump 27 is connected to the water tank 26, and a plurality of atomizing nozzles 28 are installed on the water outlet pipe of the high-pressure water pump 27, and the spray port of the atomizing nozzle 28 faces directly downward. The fog cannon 18 is integrated and installed on the top of the shell 23, and the structure is compact. The atomized water mist at the spray point of the atomizing nozzle 28 can be discharged downward through the annular opening at the bottom of the atomizing cavity 9 to form an annular dust removal cavity, thereby preventing dust particles from overflowing and greatly improving the dust removal ability of the device for removing asphalt on the surface of sand and gravel.

[0040] Furthermore, a cleaning brush 6 is installed at the lower end of the connecting rod 7, and a pull-out collecting drawer 8 installed on the outer shell 23 is provided directly behind the cleaning brush 6. The crank-connecting rod structure is used to realize the linkage of actions. During the rotation of the crankshaft 10, the pull rod 7 and the cleaning brush 6 at the lower end thereof will be pulled back and forth horizontally through the connecting rod 7, so that the particles on the asphalt pavement can be uniformly collected into the collecting drawer 8 for unified recycling and treatment. The height position of the cleaning brush 6 on the pull rod 7 can be adjusted to adapt to the ground conditions.

[0041] Furthermore, a plurality of staggered windshields 15 are fixedly connected to the top of the cavity, a filter screen 17 is provided on the windshield 15, and an observation port 21 is provided on the outer shell 23 facing the filter screen 17. The staggered windshields 15 can block the air containing dust particles absorbed by the negative pressure fan, and heavy particles can fall on the upwardly inclined windshields 15 when passing through the staggered windshields 15, thereby achieving the purpose of preliminary filtration. The structure is simple, economical and practical.

[0042] Furthermore, a handle 25 is fixedly connected to the left and right ends of the rear side of the shell 23 respectively, the handle 25 is hinged to the top of the support rod 13, and a roller 12 is fixedly connected to the lower end of the support rod 13. One end of the hydraulic rod 11 is hinged to the shell 23, and the other end is hinged to the support rod 13. When the device for removing asphalt from the surface of sand and gravel is working, the piston rod of the hydraulic rod 11 contracts, so that the roller 12 rises, and the ultrasonic cleaning brush 1 and the mechanical cleaning brush 2 can contact the road surface at the same time. When not working, the piston rod of the hydraulic rod 11 extends, so that the roller 12 descends, and the ultrasonic cleaning brush 1 and the mechanical cleaning brush 2 can be out of contact with the road surface, which is convenient for movement.

[0043] The present invention adopts a nested two-stage cleaning mechanism, the inner circle adopts a mechanical cleaning mechanism, and the outer circle adopts an ultrasonic cleaning mechanism. A cleaning process is: ultrasonic vibration cleaning-mechanical cleaning-ultrasonic vibration cleaning. Three cleanings are achieved in one push, which greatly improves the cleaning effect and cleaning efficiency. The ultrasonic cleaning of the present invention innovatively proposes non-immersion ultrasonic cleaning, which uses ultrasonic vibration to directly act on the road cleaning liquid to form a tiny cleaning cavity. Each tiny cleaning cavity acts together on the road cleaning liquid to produce an ultrasonic cavitation effect, which accelerates the dissolution of asphalt and loosens the gravel asphalt on the road surface, thereby improving the cleaning effect of subsequent mechanical cleaning. After two cleanings, the asphalt remaining on the gravel surface can achieve a high cleaning rate and low residue cleaning effect under the action of ultrasonic cleaning. An ultrasonic generator 5 is used to generate a high-frequency oscillation electrical signal, which is converted into a high-frequency mechanical vibration through a transducer 4. The vibration of the ultrasonic frequency acts on the cleaning liquid on the road surface through an ultrasonic cleaning brush 1. , and the inside of the liquid will be utilized and compressed. When the liquid is utilized, bubbles will be generated, and when the liquid is compressed, the bubbles will be compressed, it will be crushed and broken, and the ultrasonic cavitation effect will occur to strengthen the rapid dissolution of asphalt attached to the surface of the gravel on the road surface, so as to achieve the purpose of quickly decomposing or stripping the asphalt on the surface of the gravel, greatly improving the asphalt removal efficiency of the equipment. A disc-shaped mechanical cleaning brush 2 is arranged inside the outer ring-shaped ultrasonic cleaning brush 1. The high-speed rotation of the motor 22 drives the crankshaft 10 to rotate, so that the mechanical cleaning brush 2 performs high-speed friction on the gravel on the damaged road surface to remove the asphalt on its surface. On the basis of mechanical rotary friction cleaning, ultrasonic cleaning solvent cleaning is added to form a two-stage cleaning mechanism, which greatly improves the cleaning efficiency. The crankshaft 10 will pull the connecting rod 7 to move back and forth during the rotation process to realize the action linkage. During the movement of the connecting rod 7, the generated particles are continuously received into the interior of the collection drawer 8 at the rear end, and the unified collection is convenient for recycling and processing.

[0044] During the cleaning process, the liquid on the road surface will reduce the generation of dust, and a small amount of dust will be generated. During the high-speed rotation of the fan blades 24, the dust will be attracted to the top through the bottom under the action of negative pressure, and the high-pressure fan will be used to absorb the dust particles generated during the rotation of the mechanical cleaning brush, and then they will be blocked by multiple windshields 15 and filtered by the filter 17 in turn and discharged into the air. Multiple windshields 15 block the air containing dust particles. In the process, heavy dust particles can fall on the upwardly inclined windshields 15 when passing through the staggered windshields 15. Large dust particles in the dust airflow can fall to the windshield under the action of gravity, realizing self-weight dust removal, without energy consumption, energy saving and environmental protection, and achieving the purpose of preliminary filtration. In this way, the service life of the filter 17 can be extended to ensure the dust removal effect. The edge of the outer shell 23 uses atomized water particles at the spray point of the atomizer cannon to reduce dust, and multiple atomizer nozzles 28 spray atomized water mist downward. And discharged through the atomizing chamber 9, the atomizing chamber 9 acts on the outer edge of the central fan to form a sealed water mist column fog curtain, which can avoid the overflow of dust particles generated inside during cleaning, realize dust removal and dust reduction at the source of the sealed space, and greatly improve the dust removal effect. Moreover, under the strong negative pressure attraction generated by the central negative pressure fan, most of the atomized particles will follow the negative pressure airflow to the center of the outer shell 23 and flow upward rapidly. The lower end of the outer shell 23 is large and the upper end is small, the volume cavity will gradually decrease, and the airflow beam will gradually decrease. In this way, the probability of contact between the atomized particles and the dust particles is greatly increased, which improves the atomization dust reduction effect. The central negative pressure fan dust suction + edge annular fog curtain is used for isolation and dust reduction. The two complement each other and promote each other to form a two-stage enhanced dust removal system, forming a closed dust removal space at the dust generation point and is isolated from the outside atmosphere, greatly reducing dust at the work site, environmental protection and energy saving.

[0045] Utilizing the technical solution described in the present invention, or those skilled in the art designing a similar technical solution inspired by the technical solution of the present invention to achieve the above-mentioned technical effects, all fall within the protection scope of the present invention.

Claims

1. A device for removing asphalt from the surface of sand and gravel, characterized in that: The invention comprises a shell (23) having an outer layer which is an atomizing cavity (9) with an opening at the lower end, a cavity in the middle, a fog cannon (18) fixedly installed on the top, and the fog outlet of the fog cannon (18) is connected to the atomizing cavity (9) through an air outlet pipe (20), an air outlet (16) is provided on the top of the shell (23), a lithium battery (14), a motor (22), and an ultrasonic generator (5) are fixed in the cavity of the shell (23), and the motor (22) and the ultrasonic generator (5) are connected to the lithium battery (14). ) is electrically connected, the output shaft of the motor (22) is connected to the crankshaft (10) via a coupling, a plurality of fan blades (24) are fixedly connected to the upper end of the crankshaft (10), the middle is hinged to the connecting rod (7), and the lower end is fixedly connected to a disc-type mechanical cleaning brush (2), a circular ultrasonic cleaning brush (1) mounted on a bracket (3) is provided on the outer side of the mechanical cleaning brush (2), a plurality of transducers (4) are installed on the bracket (3), and the transducers (4) are electrically connected to the ultrasonic generator (5), a cleaning brush (6) is installed on the lower end of the connecting rod (7), and a removable collection drawer (8) mounted on the housing (23) is provided directly behind the cleaning brush (6), a plurality of staggered windshields (15) are fixedly connected to the top of the cavity, a filter screen (17) is provided on the windshield (15), and an observation port (21) is provided on the housing (23) facing the filter screen (17).

2. The device for removing asphalt from the surface of gravel as claimed in claim 1, characterized in that: A visible cover plate (19) is hingedly mounted on the top of the fog cannon (18).

3. The device for removing asphalt from the surface of gravel as claimed in claim 1, characterized in that: The fog cannon (18) comprises a water tank (26), a high-pressure water pump (27) and an atomizing nozzle (28); the water inlet of the high-pressure water pump (27) is connected to the water tank (26), and a plurality of atomizing nozzles (28) are installed on the water outlet pipe of the high-pressure water pump (27), and the spray outlet of the atomizing nozzle (28) faces directly downward.

4. The device for removing asphalt from the surface of gravel as claimed in claim 1, characterized in that: A handle (25) is fixedly connected to the left and right ends of the rear side of the shell (23), respectively. The handle (25) is hinged to the top of the support rod (13). A roller (12) is fixedly connected to the lower end of the support rod (13). One end of the hydraulic rod (11) is hinged to the shell (23), and the other end is hinged to the support rod (13).

5. A method for removing asphalt from the surface of gravel as claimed in claim 1, characterized in that: a. Road cleaning: Clean the gravel and dust on the road that needs to be repaired; b. Spraying of cleaning agent: Spray the asphalt cleaning liquid evenly on the road surface to be repaired to make the road surface moist; c. Asphalt removal: Turn on the asphalt removal device. First, the ultrasonic cleaning brush (1) on the outer ring vibrates at ultrasonic frequency to clean the asphalt on the road surface by utilizing the ultrasonic cavitation effect generated by the road cleaning fluid, so that the asphalt is quickly dissolved; at the same time, the mechanical cleaning brush (2) rotates to brush the asphalt on the gravel surface at high speed, thereby achieving the purpose of removing the asphalt on the gravel surface; d. Asphalt collection: The mechanical cleaning brush (2) rotates and pulls the cleaning brush (6) on the connecting rod (7) to move left and right through the crankshaft (10), so as to collect the solid particles dropped after being cleaned; e. Dust removal: The fan blades (24) on the crankshaft (10) rotate at a high speed, so that the dust-containing air generated by high-speed brushing of the asphalt pavement can pass through the lower air inlet, be blocked by the multiple layers of inclined and staggered windshields (15) and filtered by the filter (17), and then the clean air is discharged through the air outlet (16); the atomized water mist generated by the fog cannon (18) is discharged through the lower air outlet of the annular atomizing cavity (9), forming a two-stage enhanced dust removal system.

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