On-site thermal regeneration smoke removal system of asphalt pavement heating machine

Abstract

The utility model provides an asphalt pavement heating machine on-site heat regeneration smoke removal system, the heating machine comprises a combustion chamber and a heating box, recovery pipelines are uniformly arranged around the outside of the heating box, the bottom of each recovery pipeline is provided with a smoke suction hole, a heat circulation fan is arranged outside the combustion chamber, and the smoke suction hole is communicated with the heat circulation fan. The recovery pipeline is communicated with an air inlet of the heat circulation fan, and an air outlet of the heat circulation fan is communicated with the combustion chamber. According to the system, 360-degree dead-corner-free improvement is carried out on oil fume recovery of the heating box, the recovered asphalt oil fume enters the heating cylinder and is subjected to 1000-degree high-temperature circulating combustion to enter the road surface again to reheat the road surface, and the asphalt oil fume generated in the heating process can be consumed in the circulating heating process, so that the fume removal effect is achieved.

Description

Technical Field

[0001] The utility model mainly relates to the technical field related to asphalt fume recovery, in particular to an on-site thermal regeneration and fume removal system for an asphalt pavement heating machine. Background Art

[0002] Asphalt heating machines are required at highway maintenance sites to heat asphalt pavement. When the asphalt pavement is heated to 140 degrees, a large amount of asphalt fume will be generated, which has an adverse impact on the environment.

[0003] In the prior art, in order to solve the above problems, such as in the related technology with publication number CN204982623U and the name of asphalt pavement in-situ thermal regeneration heating machine, a smoke treatment device is added above the heating plate, so that the asphalt smoke generated by the heating plate in the process of heating the asphalt pavement can be effectively treated. However, the above technology is only applicable to the structure in which the heating plate is installed in the lower part of the vehicle body. However, the existing common heating machine generally adopts a combustion chamber with a heating box, and a structure with multiple heating tubes on both sides of the heating box. The asphalt pavement can be heated over a large area through the heating box. However, during use, a large amount of asphalt fume will be generated in one circle of the heating box. The existing technology cannot recycle the asphalt fume well, and direct emissions pose a health threat to the staff and have adverse effects on the environment. Utility Model Content

[0004] In order to solve the shortcomings of the current technology, the utility model combines the existing technology and, based on practical application, provides an on-site thermal regeneration and smoke removal system for an asphalt pavement heating machine. The oil fume recovery of the heating box is improved 360 degrees without dead ends. The recovered asphalt oil fume enters the heating cylinder and undergoes a high-temperature circulation combustion of 1000 degrees before entering the road surface again to reheat the road surface. The asphalt oil fume generated during the heating process will be consumed during the circulating heating process, thereby achieving a smoke removal effect.

[0005] The technical solution of the utility model is as follows:

[0006] An on-site hot regeneration and smoke removal system for an asphalt pavement heating machine, the heating machine comprising a combustion chamber and a heating box, recovery pipes being evenly arranged around the outside of the heating box, a smoke-smoking hole being provided at the bottom of the recovery pipes, a heat circulation fan being arranged outside the combustion chamber, the recovery pipes being connected to an air inlet of the heat circulation fan, and an air outlet of the heat circulation fan being connected to the combustion chamber.

[0007] Further, the recovery pipeline includes a first recovery pipeline, a second recovery pipeline, a third recovery pipeline and a fourth recovery pipeline which are connected in sequence;

[0008] The first recovery pipe is arranged at one end of the heating box near the heat circulation fan, the third recovery pipe is arranged at the other end of the heating box near the downwind position of the combustion chamber, and the second recovery pipe and the fourth recovery pipe are respectively arranged on both sides of the heating box.

[0009] Furthermore, the first recovery pipe is connected to the air inlet of the heat cycle fan.

[0010] Furthermore, the first recovery pipe, the second recovery pipe, the third recovery pipe and the fourth recovery pipe are arranged in a rectangular shape.

[0011] Furthermore, a plurality of heating pipes extend outwardly from both sides of the heating box, and the second recovery pipe and the fourth recovery pipe are supported by the heating pipes.

[0012] Furthermore, the number of smoking holes on the first recovery pipe, the second recovery pipe, the third recovery pipe and the fourth recovery pipe is the same or different.

[0013] Furthermore, the number of smoking holes on the third recovery pipe is the largest, the number of smoking holes on the second recovery pipe and the fourth recovery pipe is equal, and the number of smoking holes on the first recovery pipe is the smallest.

[0014] Beneficial effects of the utility model:

[0015] In the present invention, a recovery pipe is added around the heating box. When the heating box heats the road surface, the asphalt fume generated enters the pipe through the smoke hole of the recovery pipe, and is finally sent into the combustion chamber through the heat circulation fan. The asphalt fume is fully burned by the 1000° flame in the combustion chamber, thereby achieving the asphalt fume removal effect. Practice has verified that the asphalt fume recovery effect of the present structure is good and the efficiency is high.

[0016] In the utility model, the structural layout adopted can facilitate the modification of the existing asphalt heating machine equipment. In the asphalt heating machine structure, hot air is blown from the rear of the heating box body into the front of the box body for circulation, resulting in excessive pressure in the front of the box body, and a large amount of oily smoke overflow of the heated asphalt oil. The utility model opens holes on the recovery pipe according to the pressure size of various parts of the box body. A larger number of holes are opened for the situation where the pressure is higher near the downwind port, and a smaller number of holes are opened for the situation where the pressure is lower at the recovery port, thereby achieving a uniform smoke removal effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Attached Figure 1 This is a schematic diagram of the main view structure of the utility model;

[0018] Attached Figure 2 This is a schematic diagram of the top view structure of the utility model;

[0019] Attached Figure 3 It is a side structural schematic diagram of the utility model.

[0020] Numbers shown in the accompanying drawings:

[0021] 1. First recovery pipe; 2. Second recovery pipe; 3. Third recovery pipe; 4. Fourth recovery pipe; 5. Smoking hole; 6. Heating box; 7. Combustion chamber; 8. Heat circulation fan; 9. Heating pipe; 10. Air inlet; 11. Air outlet; 12. Downwind outlet of combustion chamber. DETAILED DESCRIPTION

[0022] The utility model is further described in conjunction with the accompanying drawings and specific embodiments. It should be understood that these embodiments are only used to illustrate the utility model and are not used to limit the scope of the utility model. In addition, it should be understood that after reading the content taught by the utility model, those skilled in the art can make various changes or modifications to the utility model, and these equivalent forms also fall within the scope defined by this application.

[0023] This embodiment provides an on-site thermal regeneration and smoke removal system for an asphalt pavement heating machine, and its structure is as follows: Figure 1-Figure 3 shown.

[0024] In this embodiment, the asphalt heating machine is as follows Figure 1-Figure 3 As shown, it mainly includes a heating box 6, a combustion chamber 7, a heat circulation fan 8 and a heating tube 9, wherein the heat circulation fan 8 is located at the front of the heating box 6, the combustion chamber 7 is located at the rear of the heating box 6, the downwind port of the combustion chamber 7 is located at the rear for blowing hot air from the rear to the front for circulation, and the heating tube 9 is arranged on the left and right sides of the combustion chamber 7 for heating both sides of the road surface.

[0025] In the traditional structure, the asphalt heating machine of the above structure does not have the smoke removal performance. When heating the road surface, a large amount of asphalt smoke will be generated around the heating box, causing environmental pollution. In this embodiment, the effect of asphalt smoke recovery is achieved by evenly arranging recovery pipes around the outside of the heating box 6.

[0026] As shown in the reference figure, the recovery pipeline mainly includes a first recovery pipeline 1, a second recovery pipeline 2, a third recovery pipeline 3 and a fourth recovery pipeline 4. The four recovery pipelines are arranged in a rectangular shape to surround the heating box 6. A plurality of smoking holes 5 are arranged on each recovery pipeline, and the first recovery pipeline 1 is connected to the air inlet 10 of the heat circulation fan 8. Through this structure, the asphalt fume generated around the heating box 6 is sucked through the smoking holes 5 under the negative pressure of the heat circulation fan 8, and finally reaches the heat circulation fan 8 through the air inlet 10 along the recovery pipeline 1, and is transported to the combustion chamber 7 through the air outlet 11, and is burned at a high temperature of 1000 degrees in the combustion chamber 7, thereby achieving a smoke removal effect.

[0027] Because, when the heater is in use, the pressure of the hot air at the lower air outlet 12 of the combustion chamber when it blows onto the asphalt pavement is greater than the pressure at the heat circulation fan 8. In order to ensure the uniformity of asphalt fume recovery, this embodiment sets different numbers of smoking holes 5 on the recovery pipe according to different pressures.

[0028] refer to Figure 2 As described, in this embodiment, the first recovery pipe 1 is arranged at the front end of the heating box 6 near the heat circulation fan 8, the third recovery pipe 3 is arranged at the rear end of the heating box 6 near the lower air outlet 12 of the combustion chamber, and the second recovery pipe 2 and the fourth recovery pipe 4 are arranged on both sides of the heating box 6. At this time, the pressure at the third recovery pipe 3 is the largest, the pressure at the second recovery pipe 2 and the fourth recovery pipe 4 is second, and the pressure at the third recovery pipe 3 is the smallest. Therefore, in this embodiment, the number of smoking holes 5 is as follows: the number of smoking holes 5 on the third recovery pipe 3 is the largest, the number of smoking holes 5 on the second recovery pipe 2 and the fourth recovery pipe 4 is equal, and the number of smoking holes 5 on the first recovery pipe 1 is the smallest. By opening holes according to the pressure of each part of the box, the asphalt fume is evenly sent into the combustion chamber 7 and burned by high-temperature flames, so as to achieve the recovery of asphalt fume and achieve the smoke removal effect.

[0029] In this embodiment, a plurality of heating pipes 9 extend outwardly from both sides of the heating box 6 , and the second recovery pipe 2 and the fourth recovery pipe 4 can be installed on the heating pipes 9 and supported by the heating pipes 9 .

Claims

1. An on-site thermal regeneration and smoke removal system for an asphalt pavement heating machine, the heating machine comprising a combustion chamber and a heating box, characterized in that: A recovery pipe is evenly arranged around the outside of the heating box, a smoking hole is opened at the bottom of the recovery pipe, a heat circulation fan is arranged outside the combustion chamber, the recovery pipe is connected with the air inlet of the heat circulation fan, and the air outlet of the heat circulation fan is connected with the combustion chamber.

2. The on-site hot regeneration and smoke removal system of the asphalt pavement heating machine according to claim 1 is characterized in that: The recovery pipeline includes a first recovery pipeline, a second recovery pipeline, a third recovery pipeline and a fourth recovery pipeline which are connected in sequence; The first recovery pipe is arranged at one end of the heating box near the heat circulation fan, the third recovery pipe is arranged at the other end of the heating box near the downwind position of the combustion chamber, and the second recovery pipe and the fourth recovery pipe are respectively arranged on both sides of the heating box.

3. The on-site hot regeneration and smoke removal system of the asphalt pavement heating machine according to claim 2 is characterized in that: The first recovery pipeline is communicated with the air inlet of the heat cycle fan.

4. The on-site hot regeneration and smoke removal system of the asphalt pavement heating machine according to claim 2 is characterized in that: The first recovery pipe, the second recovery pipe, the third recovery pipe and the fourth recovery pipe are arranged in a rectangular shape.

5. The on-site hot regeneration and smoke removal system of the asphalt pavement heating machine according to claim 4 is characterized in that: A plurality of heating pipes are extended outwardly from both sides of the heating box, and the second recovery pipe and the fourth recovery pipe are supported by the heating pipes.

6. The on-site hot regeneration and smoke removal system of the asphalt pavement heating machine according to claim 2 is characterized in that: The number of the smoking holes on the first recovery pipe, the second recovery pipe, the third recovery pipe and the fourth recovery pipe is the same or different.

7. The on-site hot regeneration and smoke removal system of the asphalt pavement heating machine according to claim 6 is characterized in that: The third recovery pipe has the largest number of smoking holes, the second recovery pipe and the fourth recovery pipe have the same number of smoking holes, and the first recovery pipe has the least number of smoking holes.

Images