Asphalt heating device for asphalt pavement

Abstract

The utility model discloses an asphalt heating device for an asphalt pavement, which comprises a box body, a plurality of groups of radiating fins are arranged at the side part of the heating box, and a connecting branch pipe is communicated with a draught hood; through the design of structures such as a draught hood, an extraction pipe and a connecting branch pipe, after an asphalt pavement is heated through hot air exhausted by a first exhaust hood, hot air generated after the asphalt pavement is heated can be collected through cooperation of a second exhaust fan, the draught hood, a connecting header pipe, the extraction pipe and the connecting branch pipe; collected hot air can be conveyed into the first heating cavity through the second exhaust fan, heat dissipated by the heating mechanism in the heating box is conducted through cooperation of the heating box and the cooling fins, the recycled hot air is heated again, and the heated hot air is conveyed through the first heating cavity and then discharged out of the equipment to heat the asphalt pavement. According to the utility model, the waste heat in the hot air can be recycled, the waste of heat energy resources caused by direct emission can be prevented, and meanwhile, the heating effect on the asphalt pavement can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of asphalt pavement construction, in particular to an asphalt heating device for asphalt pavement. Background Technique

[0002] After an asphalt pavement is repeatedly rolled by large vehicles, the asphalt pavement may collapse or break. At this time, workers need to use an asphalt heating device to heat the asphalt, and then repair the damaged asphalt pavement.

[0003] The prior art provides a heating machine for asphalt pavement (publication number: CN214737278U). The utility model includes a trolley main body, a heating chamber and an air outlet pipe. A first electric heating wire is arranged inside the heating chamber. Two blowers are installed at the air inlet of the heating chamber, and the blowers are fixedly installed on the trolley main body through a fixing device. The utility model blows air into the heated electric heating wire through the blower, so that the gas passing through the electric heating wire reaches a high temperature, passes through the heating chamber and reaches the asphalt pavement to heat the asphalt pavement. Without using combustible gas, it reduces environmental pollution. On the other hand, a crushing device is also provided in front of the trolley main body to break the asphalt pavement with the crushing gear, increasing the contact area of the asphalt with the high-temperature gas, so that the subsequent high-temperature gas can better heat the asphalt pavement.

[0004] However, in the actual operation process of the above-mentioned heating machine for asphalt pavement, the hot air after heating the asphalt is directly discharged, and the waste heat in the hot air cannot be recycled, resulting in a waste of heat energy resources. Therefore, we need to propose an asphalt heating device for asphalt pavement. Content of the Utility Model

[0005] The purpose of the utility model is to provide an asphalt heating device for asphalt pavement, which can recycle the waste heat in the hot air, prevent the waste of heat energy resources caused by direct discharge, and improve the heating effect on the asphalt pavement, so as to solve the problems proposed in the above background technique.

[0006] To achieve the above purpose, the utility model provides the following technical solutions:

[0007] An asphalt heating device for an asphalt pavement, comprising a box body, an inner wall of the box body is fixedly connected with a heating box, a first heating chamber is separated in the box body through the heating box, a plurality of radiating fins are arranged on a side part of the heating box, a conveying pipe is communicated with a side part of the box body, a first exhaust hood is communicated with the conveying pipe, a plurality of air extraction hoods are fixedly installed on a side part of the first exhaust hood, a second air extraction fan is fixedly installed on a top of the box body, an extraction pipe is communicated with both an air extraction end and an air outlet end of the second air extraction fan, the extraction pipe at the air outlet end of the second air extraction fan is communicated with the box body, the extraction pipe at the air extraction end of the second air extraction fan is communicated with a connecting main pipe, a plurality of connecting branch pipes are communicated with the connecting main pipe, and the connecting branch pipes are communicated with the air extraction hoods.

[0008] Preferably, a connecting pipe is communicated with a bottom of the box body, and a second exhaust hood is communicated with an end of the connecting pipe.

[0009] Preferably, the radiating fins are arranged in the first heating chamber.

[0010] Preferably, a first fixing rod is fixedly installed in the first heating chamber, and a first electric heating wire for recovering and heating hot air is arranged on the first fixing rod.

[0011] Preferably, a partition board is fixedly installed in the heating box, a second heating chamber is separated in the heating box through the partition board, a plurality of second fixing rods are fixedly installed in the second heating chamber, and a second electric heating wire for heating air is arranged on each of the plurality of second fixing rods.

[0012] Preferably, a support plate is fixedly installed on a side part of the box body, a first air extraction fan is fixedly installed on a top of the support plate, and an air outlet end of the first air extraction fan is communicated with the box body.

[0013] Preferably, a fixing plate is fixedly installed on a bottom of the air extraction hood, and a protective net is arranged on the fixing plate.

[0014] Preferably, a connecting rod is fixedly installed on a side part of the first exhaust hood, and one end of the connecting rod is fixedly installed on the side part of the box body.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] Through the design of structures such as the exhaust hood, extraction pipe and connecting branch pipe, the exhaust hood is installed on the side of the first exhaust hood. After the hot air discharged from the first exhaust hood heats the asphalt pavement, through the cooperation of the second exhaust fan, exhaust hood, connecting main pipe, extraction pipe and connecting branch pipe, the hot air after heating the asphalt pavement can be collected. After the second exhaust fan conveys the collected hot air to the first heating cavity, through the cooperation of the heating box and the heat sink, the heat dissipated by the heating mechanism in the heating box is conducted, and the recycled hot air is heated again. After the heated hot air is conveyed through the first heating cavity, the equipment discharges to heat the asphalt pavement. The utility model can recycle the waste heat in the hot air, prevent the waste of thermal energy resources caused by direct emission, and improve the heating effect on the asphalt pavement at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a schematic structural diagram of the present utility model;

[0018] Figure 2 is one of the sectional structural diagrams of the present utility model;

[0019] Figure 3 is the second schematic structural diagram of the present utility model;

[0020] Figure 4 is a schematic structural diagram of the first exhaust hood and exhaust hood and other structures of the present utility model.

[0021] In the figure: 1, box body; 2, heating box; 3, first heating cavity; 4, heat sink; 5, first fixing rod; 6, first electric heating wire; 7, exhaust hood; 8, partition board; 9, second heating cavity; 10, second fixing rod; 11, second electric heating wire; 12, support plate; 13, first exhaust fan; 14, conveying pipe; 15, connecting rod; 16, first exhaust hood; 17, fixing plate; 18, protection net; 19, second exhaust hood; 20, connecting pipe; 21, second exhaust fan; 22, extraction pipe; 23, connecting main pipe; 24, connecting branch pipe. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0022] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the 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 work fall within the protection scope of the present utility model.

[0023] Please refer to Figures 1-4 , the present utility model provides a technical solution:

[0024] An asphalt heating device for an asphalt road surface, comprising a box body 1, an inner wall of the box body 1 is fixedly connected with a heating box 2, the inside of the box body 1 is separated into a first heating chamber 3 by the heating box 2, a plurality of heat dissipation fins 4 are arranged on a side portion of the heating box 2, the heat dissipation fins 4 are arranged in the first heating chamber 3, a conveying pipe 14 is communicated with a side portion of the box body 1, a first exhaust hood 16 is communicated with the conveying pipe 14, a plurality of air extraction hoods 7 are fixedly installed on a side portion of the first exhaust hood 16, a second air extraction fan 21 is fixedly installed on a top portion of the box body 1, an air extraction end and an air outlet end of the second air extraction fan 21 are both communicated with an extraction pipe 22, the extraction pipe 22 at the air outlet end of the second air extraction fan 21 is communicated with the box body 1, the extraction pipe 22 at the air extraction end of the second air extraction fan 21 is communicated with a connection main pipe 23, a plurality of connection branch pipes 24 are communicated with the connection main pipe 23, and the connection branch pipes 24 are communicated with the air extraction hoods 7;

[0025] Through the arrangement of the heating box 2, the heating box 2 is made of the same aluminum material as the heat dissipation fins 4. When the second electric heating wire 11 heats the air, the heat dissipated by the hot air can heat the heating box 2 first, and then the heat is conducted through the heating box 2 and the heat dissipation fins 4, so as to facilitate reheating the recycled hot air;

[0026] A connection pipe 20 is communicated with a bottom portion of the box body 1, and a second exhaust hood 19 is communicated with an end portion of the connection pipe 20;

[0027] Through the arrangement of the second exhaust hood 19, the air after being recycled and heated can be discharged through the second exhaust hood 19 to reheating the asphalt road surface again;

[0028] A first fixing rod 5 is fixedly installed in the first heating chamber 3, and a first electric heating wire 6 for recycling and heating hot air is arranged on the first fixing rod 5;

[0029] Through the arrangement of the first electric heating wire 6, the recycled air can be heated and raised in temperature by the first electric heating wire 6, and the heating effect on the air can be improved;

[0030] A partition plate 8 is fixedly installed in the heating box 2, the heating box 2 is separated into a second heating chamber 9 by the partition plate 8, a plurality of second fixing rods 10 are fixedly installed in the second heating chamber 9, and a second electric heating wire 11 for heating air is arranged on each of the plurality of second fixing rods 10;

[0031] A support plate 12 is fixedly installed on a side portion of the box body 1, a first air extraction fan 13 is fixedly installed on a top portion of the support plate 12, and an air outlet end of the first air extraction fan 13 is communicated with the box body 1;

[0032] A fixing plate 17 is fixedly installed on a bottom portion of the air extraction hood 7, and a protective net 18 is arranged on the fixing plate 17;

[0033] Through the setting of the protection net 18, when the air passes through the protection net 18, the protection net 18 can filter the inhaled air to prevent sundries from being inhaled by the second exhaust fan 21;

[0034] A connecting rod 15 is fixedly installed on the side of the first exhaust hood 16, and one end of the connecting rod 15 is fixedly installed on the side of the box body 1;

[0035] In specific use, through the operation of the first exhaust fan 13 and the second exhaust fan 21, the first exhaust fan 13 can extract air and transport it to the heating box 2. The second electric heating wire 11 in the heating box 2 can heat the air. After the heated air is transported in the second heating cavity 9, it is transported to the first exhaust hood 16 through the delivery pipe 14. After passing through the protection net 18 in the first exhaust hood 16, it is sprayed onto the asphalt road surface, thereby heating the asphalt road surface;

[0036] When the second electric heating wire 11 heats the air, the heat dissipated by the hot air can heat the heating box 2, and then conduct the heat through the heating box 2 and the heat sink 4. Through the operation of the second exhaust fan 21, the second exhaust fan 21 can cooperate with the exhaust hood 7, the connecting main pipe 23, the extraction pipe 22 and the connecting branch pipe 24 to collect the hot air after heating the asphalt road surface. The second exhaust fan 21 can transport the collected hot air to the first heating cavity 3, and then reheat the recycled hot air through the heating box 2 and the heat sink 4. The first electric heating wire 6 can reheat and raise the temperature of the recycled air, which can improve the heating effect of the air. After the heated hot air is transported through the first heating cavity 3, it is discharged through the connecting pipe 20 and the second exhaust hood 19 to heat the asphalt road surface again.

[0037] In this application document, the control modes of the first exhaust fan 13, the second exhaust fan 21, the first electric heating wire 6 and the second electric heating wire 11 are automatically controlled by a controller. The control circuit of the controller can be realized by simple programming by those skilled in the art, which belongs to the common general knowledge in the art. And this application document is mainly used to protect the structure and shape and their combination, so this application document will not explain the control mode and circuit connection in detail. This device is powered by an internal power supply or an external power supply.

[0038] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An asphalt heating device for an asphalt pavement, characterized in that, Including: A box body (1), an inner wall of the box body (1) is fixedly connected with a heating box (2), the inside of the box body (1) is separated into a first heating chamber (3) by the heating box (2), and a plurality of radiating fins (4) are arranged on the side of the heating box (2); A conveying pipe (14) communicated with the side of the box body (1), a first exhaust hood (16) is communicated with the conveying pipe (14), and a plurality of air extraction hoods (7) are fixedly installed on the side of the first exhaust hood (16); A second exhaust fan (21) fixedly installed on the top of the box body (1), extraction pipes (22) are communicated with both the air extraction end and the air outlet end of the second exhaust fan (21), the extraction pipe (22) at the air outlet end of the second exhaust fan (21) is communicated with the box body (1), the extraction pipe (22) at the air extraction end of the second exhaust fan (21) is communicated with a connecting main pipe (23), a plurality of connecting branch pipes (24) are communicated with the connecting main pipe (23), and the connecting branch pipes (24) are communicated with the air extraction hoods (7).

2. The asphalt heating device for an asphalt pavement according to claim 1, characterized in that: A connecting pipe (20) is communicated with the bottom of the box body (1), and a second exhaust hood (19) is communicated with the end of the connecting pipe (20).

3. The asphalt heating device for an asphalt pavement according to claim 1, characterized in that: The radiating fins (4) are arranged in the first heating chamber (3).

4. An asphalt heating device for an asphalt pavement according to claim 1, characterized in that: A first fixing rod (5) is fixedly installed in the first heating chamber (3), and a first electric heating wire (6) for recovering and heating hot air is arranged on the first fixing rod (5).

5. An asphalt heating device for an asphalt pavement according to claim --, characterized in that: A partition plate (8) is fixedly installed in the heating box (2), the heating box (2) is separated into a second heating chamber (9) by the partition plate (8), a plurality of second fixing rods (10) are fixedly installed in the second heating chamber (9), and second electric heating wires (11) for heating air are arranged on the plurality of second fixing rods (10).

6. The asphalt heating device for an asphalt pavement according to claim 1, characterized in that: A support plate (12) is fixedly installed on the side of the box body (1), a first exhaust fan (13) is fixedly installed on the top of the support plate (12), and the air outlet end of the first exhaust fan (13) is communicated with the box body (1).

7. An asphalt heating device for an asphalt pavement according to claim 1, characterized in that: A fixing plate (17) is fixedly installed at the bottom of the air extraction hood (7), and a protection net (18) is arranged on the fixing plate (17).

8. An asphalt heating device for an asphalt pavement according to claim 1, characterized in that: A connecting rod (15) is fixedly installed on the side of the first exhaust hood (16), and one end of the connecting rod (15) is fixedly installed on the side of the box body (1).

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