Asphalt crack pouring device

Abstract

The utility model provides an asphalt crack pouring device which comprises a moving trolley, a heating container, an asphalt pump, a stirring mechanism and a waste gas treatment mechanism, the heating container is connected with a hose, the asphalt pump and a spray gun, the stirring mechanism comprises a rotary driving device and a stirring frame, and the stirring frame is arranged in the heating container. The rotary driving device is arranged on the outer side of the heating container and can drive the stirring frame to rotate, and an air inlet pipe communicated with the interior of the heating container is arranged on the heating container; the waste gas treatment mechanism comprises a waste gas pipe, a treatment box and an exhaust pipe, a treatment tank and an air extractor are arranged in the treatment box, the two ends of the waste gas pipe communicate with the heating container and the first end of the treatment tank correspondingly, and the inlet end of the air extractor communicates with the second end of the treatment tank; a filter layer and a catalytic oxidation layer are sequentially arranged between the first end and the second end of the treatment tank in the gas flowing direction, and the exhaust pipe is connected to the outlet end of the air extractor and outwards penetrates out of the treatment tank; the asphalt waste gas recycling device can prevent asphalt waste gas from polluting the environment and plays an environment-friendly role.

Description

TECHNICAL FIELD

[0001] The utility model relates to the crack pouring design field, concretely relates to a pitch crack pouring device. BACKGROUND

[0002] Cracks are one of the main forms of highway damage, among which linear cracks such as transverse cracks and longitudinal cracks are most common. The pitch crack pouring technology is an effective preventive protection method, covering the crack pouring materials, crack pouring equipment and crack pouring process and the like, and mainly uses the crack pouring gun to pour the pitch into the cracks uniformly to complete the crack repairing work.

[0003] The pitch crack pouring equipment in the market has the following problems: low energy utilization efficiency, mainly relying on fossil fuels, not meeting the sustainable development requirements; serious environmental pollution, pitch waste gas is released in the pitch heating process, and the waste gas contains solid particles and various harmful substances such as benzene, toluene, ethylbenzene, xylene and the like; low crack pouring precision, easy to cause material waste and secondary road surface pollution; large and heavy equipment, inconvenient transportation and operation; low intelligent degree, requiring a large amount of manual operation, and low efficiency. UTILITY MODEL CONTENT

[0004] The utility model aims at providing a pitch crack pouring device capable of avoiding environmental pollution.

[0005] In order to realize the above-mentioned purpose, the utility model provides a pitch crack pouring device, which comprises a moving trolley, a heating container, a pitch pump and a stirring mechanism, the heating container is arranged on the moving trolley, the heating container is connected with a hose and a spray gun, the pitch pump is arranged on the hose, the stirring mechanism comprises a rotary driving device and a stirring frame, the stirring frame is arranged in the heating container, the rotary driving device is arranged on the outside of the heating container and can drive the stirring frame to rotate, the heating container is provided with an air inlet pipe which is in communication with the inside of the heating container; the moving trolley is further provided with a waste gas treatment mechanism, the waste gas treatment mechanism comprises a waste gas pipe, a treatment box and an exhaust pipe, the treatment box is provided with a treatment tank and a gas suction device, the two ends of the waste gas pipe are in communication with the heating container and the first end of the treatment tank respectively, the inlet end of the gas suction device is in communication with the second end of the treatment tank, the treatment tank is provided with a filter layer and a catalytic oxidation layer along the gas flow direction between the first end and the second end, and the exhaust pipe is connected to the outlet end of the gas suction device and penetrates out of the treatment box.

[0006] From the above scheme can be seen, by setting the heating container for heating molten asphalt, by setting the stirring mechanism, one side heating while stirring, by setting the asphalt pump and spray gun, for pouring into the cracks in the pavement asphalt, by setting the moving trolley, convenient to move back and forth, by setting the exhaust treatment mechanism, for processing the harmful gas generated when the asphalt heating, to avoid pollution and harm to the health of workers, by setting the air inlet pipe, convenient for external air into the heating container, is beneficial to maintain the pressure balance inside the heating container during the working process of the exhaust treatment mechanism.

[0007] Further, the filter layer comprises a first filter layer and a second filter layer arranged in sequence along the gas flow direction.

[0008] From the above scheme can be seen, by setting two filter layers at the same time, it is convenient to improve the filtering effect.

[0009] Further, the first filter layer is a woven layer, and the second filter layer is an activated carbon layer.

[0010] From the above scheme can be seen, by setting the woven layer, for filtering particulate matter in harmful gas, by setting the activated carbon layer, for adsorbing organic pollutants in harmful gas.

[0011] Further, the catalytic oxidation layer contains a catalyst, and the catalyst is a metal catalyst.

[0012] From the above scheme can be seen, by setting the catalytic oxidation layer, by using catalytic oxidation to convert harmful substances in waste into harmless substances such as carbon dioxide and water.

[0013] Further, the heating container comprises a barrel, a first heating element and a first heat preservation layer, the first heat preservation layer is arranged outside the barrel, the first heating element is arranged between the barrel and the first heat preservation layer, the first heating element comprises an electric heating wire and a heat conducting oil, the electric heating wire is wound on the outer peripheral wall of the barrel, the heat conducting oil is filled between the barrel, the first heat preservation layer and the electric heating wire, and a temperature detector is arranged in the heating container.

[0014] From the above scheme can be seen, by setting the heating wire and the heat conducting oil, the heat emitted by the electric heating wire can make the temperature of the heat conducting oil rise, and in the process of heating the asphalt, the electric heating wire and the heat conducting oil heat together, which is beneficial to improve the uniformity of heating.

[0015] Further, the heating container further comprises a cover body, the cover body is arranged on the barrel, a rotary driving device is arranged on the cover body, and a driving end of the rotary driving device penetrates through the cover body and is connected with the stirring frame; the cover body is provided with a feeding port and a feeding door plate, the feeding door plate is hinged in the feeding port, and the feeding door plate can open and automatically close the feeding port.

[0016] From the above scheme can be seen, by setting the feed inlet, convenient to the barrel inside heating asphalt material;By setting the feed door plate, in the feeding is subject to the gravity of asphalt material and automatically open, when asphalt material leaves the feed door plate feed door plate automatically rotates, to close the feed inlet, prevent waste gas leakage.

[0017] Further, the outer side of the hose is provided with a second heat preservation layer, or the outer side of the hose is provided with a second heating element and a second heat preservation layer.

[0018] Further, the gas inlet pipe is connected with a one-way valve.

[0019] Further, the mobile trolley is further provided with an electric control box, the electric control box is arranged on one side of the treatment box, and the treatment box or the electric control box is provided with a fixing seat, and the spray gun is detachably arranged on the fixing seat.

[0020] From the above scheme can be seen, by setting the fixing seat, for fixing the spray gun, avoid falling to the ground in the moving process.

[0021] Further, the treatment box or the electric control box is provided with a control module, and the control module is connected with the heating container, the asphalt pump, the rotary driving device and the air extraction device. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 is the structure diagram of the embodiment of the utility model.

[0023] Figure 2 is the sectional view of the heating container in the embodiment of the utility model.

[0024] Figure 3 is the sectional view of the waste gas treatment mechanism in the embodiment of the utility model.

[0025] The utility model is further described below in combination with the drawings and embodiments. DETAILED DESCRIPTION

[0026] Referring to Figures 1 to 3 The asphalt pouring and gap filling device provided by the embodiment comprises a mobile trolley 1, a heating container 2, an asphalt pump 3, a stirring mechanism 4 and a waste gas treatment mechanism 5.

[0027] The heating container 2 is arranged on the moving trolley 1, and comprises a barrel 21 and a cover 22. The cover 22 is fixedly arranged on the barrel 21, or the cover 22 is detachably connected to the barrel 21. The barrel 21 is externally provided with a first heating element and a first heat preservation layer 24. The first heat preservation layer 24 is wrapped on the peripheral wall and the bottom wall of the barrel 21, and the first heating element is arranged between the peripheral wall of the barrel 21 and the first heat preservation layer 24. The first heating element comprises an electric heating wire 23 and heat-conducting oil. The electric heating wire 23 is wound on the peripheral wall of the barrel 21, and the heat-conducting oil is filled between the barrel 21, the first heat preservation layer 24 and the electric heating wire 23. The heat-conducting oil can be filled between the peripheral wall of the barrel 21 and the first heat preservation layer 24 alone, or the heat-conducting oil is simultaneously filled to the outside of the peripheral wall and the bottom wall of the barrel 21 and arranged on the inside of the first heat preservation layer 24. A temperature detector 25 is arranged in the heating container 2. The temperature detector 25 is preferably a temperature sensor, which is used to detect the temperature inside the barrel 21.

[0028] A lower portion of the barrel 21 is connected with a hose 26 and a spray gun 27. The spray gun 27 is in communication with the inside of the heating container 2 through the hose 26. An asphalt pump 3 is arranged on the hose 26. The asphalt pump 3 is a commonly used asphalt heat preservation pump in the art, which is used to supply molten asphalt to the spray gun 27. In an embodiment, a second heat preservation layer is arranged on the outside of the hose 26, so as to avoid heat conduction of the asphalt to the outside, and to maintain the molten state of the asphalt. In another embodiment, a second heating element and a second heat preservation layer are simultaneously arranged on the outside of the hose 26. The second heating element is arranged between the peripheral wall of the hose 26 and the second heat preservation layer. The second heating element can be an electric heating wire or a heating film.

[0029] The stirring mechanism 4 comprises a rotary driving device 41 and a stirring frame 42. The rotary driving device 41 is arranged on the outside of the heating container 2, and specifically on the top wall of the cover 22. The driving end of the rotary driving device 41 extends into the barrel 21 through the cover 22. The stirring frame 42 is arranged in the middle portion of the heating container 2. The stirring frame 42 comprises a rotating shaft 421 and a plurality of stirring blades 422. The rotating shaft 421 extends along the axial direction of the barrel 21. The plurality of stirring blades 422 are arranged on the rotating shaft 421 and are arranged in a staggered manner in the axial direction of the rotating shaft 421. The driving end of the rotary driving device 41 is connected to the upper portion of the rotating shaft 421 through a shaft coupling. The rotary driving device 41 can drive the rotating shaft 421 and the stirring blades 422 thereon to rotate, so as to stir the asphalt in the barrel 21.

[0030] The waste gas treatment mechanism 5 is arranged on the moving trolley 1 and at one side of the heating container 2, and comprises a waste gas pipe 51, a treatment box 52 and an exhaust pipe 53. The treatment box 52 is internally provided with a treatment tank 521 and an air extraction device 522, the two ends of the waste gas pipe 51 are respectively communicated with the heating container 2 and the first end of the treatment tank 521, and the two ends of the waste gas pipe 51 are both provided with funnel portions, facilitating the entry and discharge of waste gas. The first end of the waste gas pipe 51 is connected to the cover body 22 or the barrel body 21, and in this embodiment, the first end of the waste gas pipe 51 is connected to the upper portion of the barrel body 21, so that the waste gas pipe 51 does not need to be disassembled when the cover body 22 is opened, and the operation is convenient. The second end of the waste gas pipe 51 penetrates through the top wall of the treatment box 52 and is communicated with the first end of the treatment tank 521. The air extraction device 522 can be an air extraction pump, the inlet end of the air extraction device 522 is communicated with the second end of the treatment tank 521, the outlet end of the air extraction device 522 is connected with the exhaust pipe 53, and the end of the exhaust pipe 53 away from the air extraction device 522 penetrates out of the treatment box 52.

[0031] The treatment tank 521 is provided with a first filter layer 5211, a second filter layer 5212 and a catalytic oxidation layer 5213 between the first end and the second end thereof, and the first filter layer 5211, the second filter layer 5212 and the catalytic oxidation layer 5213 are sequentially arranged along the gas flow direction.

[0032] The first filter layer 5211 is a woven fabric layer, which in an embodiment includes a plurality of cloth pieces arranged perpendicularly to the gas flow direction, or the cloth pieces are inclined or curvedly extended along the gas flow direction to ensure that most of the gas can pass through the cloth pieces, avoiding that the gas only passes between two adjacent cloth pieces. In another embodiment, the woven fabric layer includes a plurality of hollow sleeves and a plurality of cloth bags. The hollow sleeves extend along the gas flow direction, and the two ends of the hollow sleeves are communicated, and the plurality of hollow sleeves are arranged adjacent to each other. The cloth bags are crumpled and contracted and arranged in the hollow sleeves, so that the inside of the hollow sleeves forms a filter air channel for the gas to pass through. The size and density of the filter air channel can be set according to the size and thickness of the cloth bag, and when a larger gas flow speed is required, a cloth bag with a smaller size and a thinner thickness can be selected.

[0033] The second filter layer 5212 is an activated carbon layer, which is used for adsorbing organic pollutants in the waste gas.

[0034] The catalytic oxidation layer 5213 contains a catalyst, which can be a metal catalyst such as copper, iron, cobalt, etc. The catalytic oxidation layer 5213 converts harmful substances in the waste gas into harmless substances such as carbon dioxide and water by using the catalyst.

[0035] The waste gas generated after heating of the asphalt enters the treatment tank 521 under the suction of the suction device 522. In order to ensure the pressure balance inside and outside the heating container 2, the heating container 2 is provided with an air inlet pipe 221 in communication with the inside of the heating container 2, so that when the pressure in the heating container 2 decreases, the air outside can enter the heating container 2 from the air inlet pipe 221.

[0036] In order to prevent the waste gas from being discharged from the air inlet pipe 221, a one-way valve (not shown in the figure) is connected to the air inlet pipe 221, so that the gas can only enter from the air inlet pipe 221, but cannot be discharged from the air inlet pipe 221.

[0037] In order to facilitate feeding, the cover 22 is provided with a feeding port and a feeding door plate 224. The feeding port is connected with an upper and lower communication feeding hopper 222 and a feeding pipe 223, and the feeding door plate 224 is rotatably connected in the feeding pipe 223 through a shaft pin, and a torsional spring is sleeved on the shaft pin, and the two ends of the torsional spring are respectively in elastic abutment with the feeding door plate 224 and the inner wall of the feeding pipe 223, and the feeding door plate 224 can be turned up and down around the shaft pin.

[0038] In the normal state, the feeding port is in a closed state, as shown by the dashed line in Figure 2 When feeding, the asphalt solids accumulate on the feeding door plate 224, and when the accumulated weight reaches a certain weight, the feeding door plate 224 can be pushed downward to open, and the asphalt solids fall into the heating container 2; once the asphalt solids leave the feeding door plate 224, the door plate automatically rotates upward to close the feeding port under the action of the torsional spring.

[0039] In Figure 1 The movable trolley 1 is also provided with an electric control box 6, which is arranged on one side of the treatment tank 52. The treatment tank 52 or the electric control box 6 is provided with a fixing seat 523. In the embodiment, the fixing seat 523 is preferably arranged on the tank wall near the hose 26, and the spray gun 27 is detachably arranged on the fixing seat 523. The fixing seat 523 is provided with a clamping part, which can be a clamp or a clamping opening with a width that can change elastically. In the embodiment, the latter is preferred. The clamping arms on both sides of the clamping opening have an elastic tendency to swing inward. When the spray gun 27 is placed in the clamping opening, the spray gun 27 pushes the clamping arms outward. When the spray gun 27 enters the clamping opening, the clamping arms automatically rebound to clamp or fix the spray gun 27.

[0040] The treatment tank 52 or the electric control box 6 is provided with a control module 61, which can be a control screen for convenient human-computer interaction. The control module 61 is connected with the electric control box 6, the heating container 2, the asphalt pump 3, the rotary driving device 41, the suction device 522 and the temperature detector 25. The staff can perform related control operations on the control screen, or the control module 61 can be pre-set with related control programs.

[0041] When the temperature detector 25 detects that the temperature in the heating container 2 is lower than a first preset threshold value, the control module 61 can control the heating container 2 to perform a heating operation, preventing the pitch inside from solidifying; at the same time, the waste gas treatment mechanism 5 is automatically started to perform waste gas treatment.

[0042] When the temperature detector 25 detects that the temperature in the heating container 2 is higher than a second preset threshold value, which is greater than the first preset threshold value, the pitch is heated to a molten state, at which time the control module 61 controls the pitch pump 3 to start, at which time the worker can perform a crack pouring operation by controlling the switch of the spray gun 27.

[0043] When the temperature detector 25 detects that the temperature in the heating container 2 is higher than a third preset threshold value, which is greater than the second preset threshold value, the control module 61 automatically controls the heating container 2 to stop heating, at which time the heating container 2 enters a heat preservation state. The crack pouring operation can be performed before the temperature in the heating container 2 is lower than the second preset threshold value.

[0044] As can be seen from the above, the utility model discloses a heating container 2 for heating molten pitch, a stirring mechanism 4 for heating and stirring at the same time, a pitch pump and a spray gun 27 for pouring pitch into road cracks, a mobile trolley 1 for convenient movement, a waste gas treatment mechanism 5 for treating harmful gases generated during pitch heating to avoid environmental pollution and harm to the health of workers, and an air inlet pipe 221 for facilitating the entry of external air into the heating container 2, which is beneficial to maintaining the pressure balance inside the heating container 2 during the operation of the waste gas treatment mechanism 5.

[0045] Finally, it needs to be emphasized that the above is only a preferred embodiment of the utility model and is not used to limit the utility model. For those skilled in the art, the utility model can have various changes and modifications, and any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the utility model shall be included in the protection scope of the utility model.

Claims

1. An asphalt crack sealing device, comprising a mobile trolley, a heating container, an asphalt pump, and a mixing mechanism, wherein the heating container is mounted on the mobile trolley and connected to a hose and a spray gun, the asphalt pump is mounted on the hose, and the mixing mechanism comprises a rotary drive device and a mixing frame, the mixing frame being disposed inside the heating container, and the rotary drive device being disposed outside the heating container and capable of driving the mixing frame to rotate, characterized in that: The heating container is provided with an air inlet pipe that communicates with its interior; The mobile trolley is also equipped with an exhaust gas treatment mechanism, which includes an exhaust pipe, a treatment box, and an exhaust pipe. The treatment box contains a treatment tank and an extraction device. The two ends of the exhaust pipe are respectively connected to the heating container and the first end of the treatment tank. The inlet end of the extraction device is connected to the second end of the treatment tank. The treatment tank has a filter layer and a catalytic oxidation layer arranged sequentially between its first and second ends along the gas flow direction. The exhaust pipe is connected to the outlet end of the extraction device and extends outward from the treatment box.

2. The asphalt crack sealing device according to claim 1, characterized in that: The filter layer includes a first filter layer and a second filter layer arranged sequentially along the gas flow direction.

3. The asphalt crack sealing device according to claim 2, characterized in that: The first filter layer is a woven fabric layer, and the second filter layer is an activated carbon layer.

4. The asphalt crack sealing device according to claim 1, characterized in that: The catalytic oxidation layer contains a catalyst, which is a metal catalyst.

5. The asphalt crack sealing device according to any one of claims 1 to 4, characterized in that: The heating container includes a barrel, a first heating element, and a first insulation layer. The first insulation layer is disposed on the outside of the barrel, and the first heating element is disposed between the barrel and the first insulation layer. The first heating element includes a heating wire and heat-conducting oil. The heating wire is wound around the outer peripheral wall of the barrel, and the heat-conducting oil is filled between the barrel, the first insulation layer, and the heating wire. A temperature detector is provided inside the heating container.

6. The asphalt crack sealing device according to claim 5, characterized in that: The heating container also includes a lid, which is disposed on the barrel body, and the rotary drive device is disposed on the lid, with the drive end of the rotary drive device passing through the lid and connected to the stirring rack; The cover is provided with a feed inlet and a feed door plate. The feed door plate is hinged inside the feed inlet and can be opened and automatically closed.

7. The asphalt crack sealing device according to any one of claims 1 to 4, characterized in that: A second insulation layer is provided on the outside of the hose, or a second heating element and a second insulation layer are provided on the outside of the hose.

8. The asphalt crack sealing device according to any one of claims 1 to 4, characterized in that: A one-way valve is connected to the air intake pipe.

9. The asphalt crack sealing device according to any one of claims 1 to 4, characterized in that: The mobile trolley is also equipped with an electrical control box, which is located on one side of the processing box. The processing box or the electrical control box is equipped with a fixed base, and the spray gun is detachably mounted on the fixed base.

10. The asphalt crack sealing device according to claim 9, characterized in that: The processing box or the electrical control box is equipped with a control module, which is connected to the heating container, the asphalt pump, the rotary drive device and the air extraction device respectively.

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