Asphalt pavement coating device

Abstract

The utility model belongs to the technical field of road construction, and particularly relates to an asphalt pavement coating device which comprises a base, a material box is supported on the base, the bottom side of the material box is in pipe communication with a pressure pump, the pressure pump is communicated with a spraying assembly, and an air return system is fixed at the front end of the base. The device is controlled by the electric cabinet to work, the pressure pump is started to extract oil in the material box and send the oil into the spraying assembly, then spraying is conducted through the spraying assembly, part of the oil is diffused and mixed in air to form oil mist in the spraying process, the exhaust fan and the air blower are started, the oil mist is extracted through the exhaust hood and sent into the air return box, and the oil mist is sprayed through the spraying assembly. After oil components are filtered out through the filter screen in the air return box, the filtered air is exhausted to the inner rear side of the air return box through the exhaust fan and then exhausted to the air blowing cover through the air blower, the air vent can balance the air pressure in the air return box so that the interior of the air return box can work normally, and finally air flow is blown to the road surface through the air blowing cover so as to accelerate drying of fog sealing oil on the ground. And therefore, the body health of workers is protected, and the efficiency is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of road construction, and in particular relates to an asphalt pavement coating device. Background Art

[0002] After asphalt pavement is completed, it is often necessary to spray a fog sealant on the pavement to further improve its service life and anti-skid performance. This creates a protective fog sealant layer. In related technologies, the fog sealant is mixed and heated to form a liquid, which is then stored in a tank and then manually applied at the construction site using a sprayer.

[0003] However, the oil mist generated during the spraying process during long-term operation will cause harm to the physical and mental health of workers, and after the spraying is completed, it is necessary to wait for the mist seal oil to solidify naturally, which is relatively inefficient. Utility Model Content

[0004] The utility model provides an asphalt pavement coating device, which solves the problem that when a manually operated spraying device sprays mist sealing oil on an asphalt pavement, part of the oil mist diffused during the spraying process during long-term operation will cause harm to the physical and mental health of workers, and after the spraying is completed, it is necessary to wait for the mist sealing oil to solidify naturally, which solves the problem of relatively low efficiency.

[0005] To achieve the above objectives, the utility model provides the following technical solutions: an asphalt pavement coating device, comprising a base, the base supporting a material box, the material box being connected to a pressure pump through a pipe on the bottom side, the pressure pump being connected to a spraying assembly, a return air system is fixed at the front end of the base, an electric control box is installed on the upper side of the return air system, the return air system includes a return air box, the return air box is composed of a rear end of a horizontal box wall connected and connected to the upper end of a vertical box wall, the bottom of the vertical box wall of the return air box downwardly penetrates the front end of the base and extends to the bottom of the base, a filter is installed at the front end of the return air box, and an exhaust fan is installed at the rear side of the filter, a blower is installed at the inner bottom of the return air box and a vent is provided on the side wall, the vent is located between the exhaust fan and the blower, the front end of the return air box is fixed downwardly and connected to an exhaust hood, the bottom end of the return air box is fixed downwardly and connected to a blowing hood, and the exhaust hood is located just above the end of the spraying assembly.

[0006] The beneficial effects of the present utility model are as follows: The device works by controlling the electric control box, starting the pressure pump. The pressure pump extracts the oil from the material tank and sends it into the spraying component, and then it is sprayed through the spraying component. During the spraying process, part of the oil diffuses and mixes in the air to form an oil mist. Start the exhaust fan and the blower. The oil mist is extracted through the air extraction hood and sent into the return air box. After the oil components are filtered out by the filter screen in the return air box, the filtered air is exhausted by the exhaust fan to the inner rear side of the return air box, and then extracted by the blower and discharged to the air blowing hood. The air vent can balance the air pressure inside the return air box so that it can work properly inside. Finally, the air flow blows towards the road surface through the air blowing hood, thereby accelerating the drying of the fog seal oil on the ground. This not only protects the physical health of workers but also improves efficiency.

[0007] In order to clean the oil adhered to the filter screen;

[0008] As a further improvement of the above technical solution: The filter screen is connected with an electric heating component. The electric heating component contains a wire 1. One end of the wire 1 is connected to the electric control box and the other end is connected to an electric heating rack. The electric heating rack is installed on the return air box and the filter screen is fixed inside its periphery. A collection cavity is provided on the return air box and below the filter screen. The filter screen is made of a heat-conducting and high-temperature-resistant material.

[0009] The beneficial effect of this improvement is as follows: By controlling the electric heating rack to work through the electric control box, the wire 1 transmits current, and the electric heating rack works to heat the filter screen, so that the oil adhered to the filter screen changes from solid state to fluid state due to heat, and then the oil flows into the collection cavity under the action of gravity, realizing the cleaning of the oil adhered to the filter screen.

[0010] In order to recycle the oil in the collection cavity;

[0011] As a further improvement of the above technical solution: The collection cavity communicates downward with a return pipe. The bottom end of the return pipe communicates with the spraying component. A one-way valve is provided in the middle of the return pipe.

[0012] The beneficial effect of this improvement is as follows: The oil collected in the collection cavity flows back into the spraying component through the return pipe and is thus reused. The one-way valve can prevent the oil in the spraying component from flowing upward through the return pipe into the collection cavity during the spraying operation, thereby avoiding affecting the use.

[0013] In order to prevent the oil in the material tank from easily solidifying during long-term spraying;

[0014] As a further improvement of the above technical solution: One side of the electric control box facing the material tank is connected with a wire 2. The wire 2 is connected with an electric heating wire. The inner side wall of the material tank is covered with a heat-conducting sheet. The electric heating wire is spirally wound and contacts the middle part of the outer wall of the heat-conducting sheet.

[0015] The beneficial effects of this improvement are as follows: The heating wire is controlled by an electric control box to work, and the second wire conducts current. The heat generated by the heating wire is transferred to the internal oil through the heat conducting sheet, avoiding the easy solidification of the oil during long-term spraying.

[0016] To facilitate the insulation of the oil in the material tank and avoid the easy loss of heat;

[0017] As a further improvement of the above technical solution: The material tank includes a heat preservation box body and a heat preservation cover. The outermost periphery of the material tank is composed of the sealed connection of the heat preservation box body and the heat preservation cover. The heat conducting sheet is located inside the side walls of the heat preservation box body and the heat preservation cover, and the heating wire is located between the heat conducting sheet and the heat preservation cover.

[0018] The beneficial effects of this improvement are as follows: The heat preservation box body and the heat preservation cover can insulate the oil in the material tank and avoid the easy loss of heat.

[0019] To facilitate the addition of oil to the material tank;

[0020] As a further improvement of the above technical solution: The top surface of the material tank is provided with a filling port, and a sealing cover is threadedly connected to the filling port.

[0021] The beneficial effects of this improvement are as follows: It is convenient to add oil to the material tank through the filling port and the sealing cover.

[0022] To achieve a more uniform spraying effect;

[0023] As a further improvement of the above technical solution: The spraying assembly includes a delivery pipe with one end connected to a pressure pump. The other end of the delivery pipe extends to the front end of the top surface of the base and is connected to a connecting pipe. The end of the delivery pipe is connected to the middle of the connecting pipe. A number of branch pipes are evenly connected to the connecting pipe along the length direction. The end of each branch pipe is connected to a nozzle. The connecting pipe is arranged parallel to the front side of the base and both ends are fixed to the front end of the base.

[0024] The beneficial effects of this improvement are as follows: The pressure pump pumps the oil into the delivery pipe, and then transports it to a number of evenly arranged branch pipes through the connecting pipe, and then sprays it through a number of nozzles, making the spraying effect more uniform.

[0025] To facilitate the movement of the device;

[0026] As a further improvement of the above technical solution: Four moving wheels are fixedly arranged in an array on the bottom surface of the base, and a push handle is fixed to the rear end of the base.

[0027] The beneficial effects of this improvement are as follows: It is convenient to move the device through the moving wheels and the push handle.

[0028] The parts not involved in this device are the same as or can be implemented by using the prior art. Description of the Drawings

[0029] The accompanying drawings are used to provide a further understanding of the present utility model and form a part of the specification. Together with the embodiments of the present utility model, they are used to explain the present utility model and do not constitute a limitation to the present utility model. In the accompanying drawings:

[0030] Figure 1 is the axonometric view of the external structure of the present utility model Figure 1 ;

[0031] Figure 2 is the axonometric view of the external structure of the present utility model Figure 2 ;

[0032] Figure 3 is the schematic diagram of the structure of some components of the present utility model;

[0033] Figure 4 is the schematic diagram of the internal structure of the present utility model;

[0034] Figure 5 is the schematic diagram of the structure of local components of the present utility model;

[0035] In the figures: 1, base; 2, material box; 201, heat conducting sheet; 202, heat preservation box body; 203, heat preservation cover; 204, injection port; 205, sealing cover; 3, pressure pump; 4, spraying assembly; 401, conveying pipe; 402, connecting pipe; 403, branch pipe; 404, spray head; 5, return air system; 501, return air box; 502, filter screen; 503, exhaust fan; 504, ventilation port; 505, blower; 506, air extraction hood; 507, air blowing hood; 508, collection chamber; 509, return pipe; 510, check valve; 6, electric control box; 7, electric heating assembly; 701, wire one; 702, electric heating rack; 703, wire two; 704, electric heating wire; 8, moving wheel; 9, push handle. Specific embodiments

[0036] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model. Embodiment

[0037] Please refer to Figures 1 - 5, the present utility model provides the following technical solutions: An asphalt pavement coating device, including a base 1, a material box 2 is supported on the base 1, the material box 2 is connected by a pipe at the bottom to a pressure pump 3, the pressure pump 3 is connected to a spraying assembly 4, the front end of the base 1 is fixed with a return air system 5, an electric control box 6 is installed on the upper side of the return air system 5, the return air system 5 includes a return air box 501, the return air box 501 is composed of the connection and communication of the rear end of the horizontal box wall and the upper end of the vertical box wall, the bottom of the vertical box wall of the return air box 501 penetrates downward through the front part of the base 1 and extends below the base 1, a filter screen 502 is installed at the front end part in the return air box 501 and a suction fan 503 is installed at the rear side of the filter screen 502, a blower 505 is installed at the inner bottom of the return air box 501 and an air vent 504 is provided on the side wall, the air vent 504 is located between the suction fan 503 and the blower 505, the front end of the return air box 501 is fixed and communicated downward with an air extraction hood 506, the bottom end of the return air box 501 is fixed and communicated downward with an air blowing hood 507, the air extraction hood 506 is directly above the end of the spraying assembly 4; Control the device to work through the electric control box 6, start the pressure pump 3 to work, the pressure pump 3 extracts the oil in the material box 2 and sends it into the spraying assembly 4, and then sprays it through the spraying assembly 4. During the spraying process, part of the oil diffuses and mixes in the air to form an oil mist. Start the suction fan 503 and the blower 505 to work. Extract the oil mist through the air extraction hood 506 and send it into the return air box 501. After the oil components are filtered by the filter screen 502 in the return air box 501, the filtered air is discharged by the suction fan 503 to the inner rear side of the return air box 501, and then is extracted by the blower 505 and discharged to the air blowing hood 507. The air vent 504 can balance the air pressure inside the return air box 501 so that it can work normally inside. Finally, the air flow is blown to the road surface through the air blowing hood 507, thereby accelerating the drying of the fog seal oil on the ground, which not only protects the physical health of workers but also improves efficiency. The filter screen 502 is connected to an electric heating component 7, the electric heating component 7 includes a wire 701, one end of the wire 701 is connected to the electric control box 6 and the other end is connected to an electric heating rack 702, the electric heating rack 702 is installed on the return air box 501 and the filter screen 502 is fixed inside the periphery, a collection cavity 508 is provided on the return air box 501 and below the filter screen 502, the filter screen 502 is made of a heat-conducting and high-temperature-resistant material; Control the electric heating rack 702 to work through the electric control box 6, the wire 701 transmits current, the electric heating rack 702 works to heat the filter screen 502, so that the oil attached to the filter screen 502 changes from solid state to fluid state by heating, and then the oil flows into the collection cavity 508 under the action of gravity, realizing the cleaning of the oil attached to the filter screen 502.The collecting chamber 508 communicates downward with a return pipe 509. The bottom end of the return pipe 509 communicates with the spraying assembly 4. A one-way valve 510 is provided in the middle of the return pipe 509. The oil collected in the collecting chamber 508 flows back to the spraying assembly 4 through the return pipe 509 and is thus reused. The one-way valve 510 can prevent the oil in the spraying assembly 4 from flowing upward through the return pipe 509 into the collecting chamber 508 during the spraying operation, thus avoiding affecting the use. One side of the electric control box 6 facing the material tank 2 is connected with a second wire 703. The second wire 703 is connected with a heating wire 704. The inner side wall of the material tank 2 is covered with a heat conducting sheet 201. The heating wire 704 is spirally wound around and contacts the middle of the outer wall of the heat conducting sheet 201. By controlling the heating wire 704 to work through the electric control box 6, the second wire 703 conducts current, and the heat generated by the heating wire 704 will transfer the heat to the internal oil through the heat conducting sheet 201, avoiding the easy solidification of the oil during long-term spraying. The material tank 2 includes a heat preservation box body 202 and a heat preservation cover 203. The outermost periphery of the material tank 2 is composed of the sealed connection of the heat preservation box body 202 and the heat preservation cover 203. The heat conducting sheet 201 is located inside the side walls of the heat preservation box body 202 and the heat preservation cover 203. The heating wire 704 is located between the heat conducting sheet 201 and the heat preservation cover 203. The heat preservation box body 202 and the heat preservation cover 203 can keep the oil in the material tank 2 warm and avoid the easy loss of heat. A charging port 204 is provided on the top surface of the material tank 2. A sealing cover 205 is threadedly connected to the charging port 204. It is convenient to add oil to the material tank 2 through the charging port 204 and the sealing cover 205. The spraying assembly 4 includes a delivery pipe 401 with one end connected to a pressure pump 3. The other end of the delivery pipe 401 extends to the front end of the top surface of the base 1 and communicates with a connecting pipe 402. The end of the delivery pipe 401 communicates with the middle of the connecting pipe 402. A number of branch pipes 403 are evenly communicated along the length direction of the connecting pipe 402. The end of each branch pipe 403 is connected with a spray head 404. The connecting pipe 402 is arranged parallel to the front side surface of the base 1 and both ends are fixed to the front end of the base 1. The pressure pump 3 pumps the oil into the delivery pipe 401, and then transports it to a number of evenly arranged branch pipes 403 through the connecting pipe 402, and then sprays it through a number of spray heads 404, making the spraying effect more uniform. Four moving wheels 8 are fixedly arranged downward in an array on the bottom surface of the base 1. A push handle 9 is fixed to the rear end of the base 1. It is convenient to move the device through the moving wheels 8 and the push handle 9.

[0038] The working principle and usage process of the present utility model:

[0039] The device works under the control of the electric control box 6. The pressurizing pump 3 is started to work. The pressurizing pump 3 pumps the oil in the material tank 2 into the conveying pipe 401, and then conveys it to a number of uniformly arranged branch pipes 403 through the connecting pipe 402, and then sprays it through a number of nozzles 404 to achieve uniform spraying. During the spraying process, part of the oil diffuses and mixes in the air to form an oil mist. The exhaust fan 503 and the blower 505 are started to work. The oil mist is extracted through the air extraction hood 506 and sent into the return air box 501. After the oil components are filtered out by the filter screen 502 in the return air box 501, the filtered air is discharged by the exhaust fan 503 to the inner rear side of the return air box 501, and then extracted by the blower 505 and discharged to the air blowing hood 507. The air vent 504 can balance the air pressure inside the return air box 501 so that it can work normally inside. Finally, the air flow blows towards the road surface through the air blowing hood 507, thereby accelerating the drying of the fog seal oil on the ground. The electric control box 6 controls the heating wire 704 to work. The wire two 703 conducts the current. The heat generated by the heating wire 704 will transfer the heat to the internal oil through the heat conducting sheet 201, avoiding the easy solidification of the oil during long-term spraying.

[0040] In the last stage of the spraying operation, the return air system 5 and the pressurizing pump 3 are temporarily stopped from working, and the electric control box 6 controls the heating rack 702 to work. The wire one 701 transfers the current. The heating rack 702 works to heat the filter screen 502, so that the oil attached to the filter screen 502 changes from solid state to fluid state by heating, and then the oil flows into the collection cavity 508 under the action of gravity, thereby cleaning the oil attached to the filter screen 502. The oil collected in the collection cavity 508 flows back into the spraying assembly 4 through the return pipe 509. Then the return air system 5 and the pressurizing pump 3 are started to work again and the heating rack 702 is stopped from working. Thus, the recycled oil is reused, and the one-way valve 510 can prevent the oil in the spraying assembly 4 from flowing back upward into the collection cavity 508 through the return pipe 509 during the spraying operation, thereby avoiding affecting the use.

[0041] The heat preservation box body 202 and the heat preservation cover 203 can keep the oil in the material tank 2 warm and avoid the easy loss of heat. Oil can be added to the material tank 2 through the filling port 204 and the sealing cover 205. The device is easy to move through the moving wheels 8 and the push handle 9.

[0042] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. An asphalt pavement coating device, characterized in that: It includes a base (1), on which a material box (2) is supported. The material box (2) is connected to a pressure pump (3) through a pipe at the bottom side. The pressure pump (3) is connected to a spraying assembly (4). The front end of the base (1) is fixed with a return air system (5). An electric control box (6) is installed on the upper side of the return air system (5). The return air system (5) includes a return air box (501), and the return air box (501) is composed of the connection of the rear end of the horizontal box wall and the upper end of the vertical box wall. The bottom of the vertical box wall of the return air box (501) penetrates downward through the front part of the base (1) and extends below the base (1). A filter screen (502) is installed at the front end part in the return air box (501), and an exhaust fan (503) is installed at the rear side of the filter screen (502). A blower (505) is installed at the inner bottom of the return air box (501), and an air vent (504) is provided on the side wall. The air vent (504) is located between the exhaust fan (503) and the blower (505). The front end of the return air box (501) is fixed and connected downward with an air extraction hood (506), and the bottom end of the return air box (501) is fixed and connected downward with an air blowing hood (507). The air extraction hood (506) is directly above the end of the spraying assembly (4).

2. The asphalt pavement coating device according to claim 1, characterized in that: The filter screen (502) is connected to an electric heating component (7). The electric heating component (7) includes a wire one (701). One end of the wire one (701) is connected to the electric control box (6), and the other end is connected to an electric heating rack (702). The electric heating rack (702) is installed on the return air box (501) and the filter screen (502) is fixed inside its periphery. A collection cavity (508) is provided on the return air box (501) and below the filter screen (502). The filter screen (502) is made of a heat-conducting and high-temperature-resistant material.

3. An asphalt pavement coating device according to claim 2, characterized in that: The collection cavity (508) is connected downward with a return pipe (509). The bottom end of the return pipe (509) is connected to the spraying assembly (4). A one-way valve (510) is provided in the middle of the return pipe (509).

4. The asphalt pavement coating device according to claim 1, characterized in that: One side of the electric control box (6) facing the material box (2) is connected to a wire two (703). The wire two (703) is connected to a heating wire (704). The inner side wall of the material box (2) is covered with a heat-conducting sheet (201). The heating wire (704) is spirally wound around and contacts the middle part of the outer wall of the heat-conducting sheet (201).

5. The asphalt pavement coating device according to claim 4, characterized in that: The material box (2) includes a heat-insulating box body (202) and a heat-insulating cover (203). The outermost periphery of the material box (2) is composed of the sealed connection of the heat-insulating box body (202) and the heat-insulating cover (203). The heat-conducting sheet (201) is located inside the periphery of the side walls of the heat-insulating box body (202) and the heat-insulating cover (203). The heating wire (704) is located between the heat-conducting sheet (201) and the heat-insulating cover (203).

6. The asphalt pavement coating device according to claim 1, characterized in that: A feeding port (204) is provided on the top surface of the material box (2), and a sealing cover (205) is threadedly connected to the feeding port (204).

7. An asphalt pavement coating device according to claim 1, characterized in that: The spraying component (4) includes a delivery pipe (401) with one end connected to a pressure pump (3). The other end of the delivery pipe (401) extends to the front end of the top surface of the base (1) and is connected to a connecting pipe (402). The end of the delivery pipe (401) is connected to the middle of the connecting pipe (402). A number of branch pipes (403) are evenly connected to the connecting pipe (402) along the length direction. The end of each branch pipe (403) is connected to a spray head (404). The connecting pipe (402) is arranged parallel to the front side surface of the base (1) and both ends are fixed to the front end of the base (1).

8. A bituminous pavement coating device according to claim 1, characterized in that: Four moving wheels (8) are fixedly arranged in an array on the bottom surface of the base (1) facing downwards. A push handle (9) is fixed to the rear end of the base (1).

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