Multi-stage asphalt pavement hot in-place recycling equipment

The multi-stage heating technology controlled by diverter pipes and butterfly valves solved the problem of asphalt merging into the road markings, achieving uniform and thorough asphalt heating, reducing the labor intensity of workers, and improving work efficiency.

CN223813674UActive Publication Date: 2026-01-20TAICANG NIHAO TECH CO LTD
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Patent Information

Application Number
CN202423237323.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-27
Publication Date
2026-01-20
Estimated Expiration
2034-12-27

AI Technical Summary

Technical Problem

Existing in-situ hot asphalt recycling equipment is prone to causing the markings to integrate into the asphalt during the heating process, affecting subsequent processes. Furthermore, uneven heating increases the labor intensity of workers.

Method used

The heating temperature is controlled by a diverter pipe and a butterfly valve. The marking is softened by the first nozzle and scraped off by a roller. The surface, middle and bottom layers of asphalt are heated in sections to ensure uniform and thorough heating and reduce the risk of the markings merging into the asphalt.

Benefits of technology

It achieves thorough and uniform asphalt heating, reduces the possibility of the markings merging into the asphalt, reduces the labor intensity of workers, and improves work efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses multistage asphalt pavement hot in-place recycling equipment which comprises a base, a protective cover is fixedly connected to the upper surface of the base, a telescopic rod is fixedly connected to the upper surface of the base, a clamping plate is fixedly connected to the output end of the telescopic rod, a gas tank is arranged on the surface of the clamping plate, and a telescopic plate is fixedly connected to the lower surface of the base. The lower surface of the telescopic plate is fixedly connected with a wheel frame, and a wheel is arranged in the wheel frame. A flow guide pipe is fixedly connected into the pipe frame, one end of the flow guide pipe is communicated with a flow dividing pipe, the end, away from the flow guide pipe, of the flow dividing pipe is communicated with a first gun head, a second gun head and a third gun head, and a butterfly valve is arranged in the flow dividing pipe. By means of the components, the branch pipe, the butterfly valve and the first gun head are arranged, only the marked lines are softened to preheat asphalt, the softened marked lines are scraped through the roller and the scraper on the side surface of the roller, the situation that the marked lines are fused into the asphalt to affect implementation of subsequent procedures is prevented, and the labor intensity of workers is relieved.
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Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of asphalt heat regeneration, particularly to a multistage asphalt pavement in-situ heat regeneration equipment. BACKGROUND

[0002] The existing asphalt in-situ heat regeneration device increases the heat utilization rate of the heating component, uses a heat insulation component to insulate the heat generated by the heating component, prevents the heat from damaging the device, concentrates the heat to prevent the heat from escaping, and reduces heat waste. For example, a kind of asphalt pavement in-situ heat regeneration device is disclosed in Chinese patent CN202322144608.9, which sets a heat insulation plate to block the heat generated by the flame gun head, prevents the heat from damaging the installation box and universal wheel, and the heat insulation plate concentrates the heat, so that the heat generated by the flame gun head is not easily dispersed, reducing heat waste. However, the hot-melt marking line is melted during use, which makes the marking line melt into the asphalt, affecting the subsequent process. SUMMARY

[0003] The utility model discloses a multistage asphalt pavement in-situ heat regeneration equipment, which solves the problem of the prior art. The gas is divided by the branch pipe, and the butterfly valve is arranged at the end of the branch pipe to control the heating temperature. The first gun head only softens the marking line to preheat the asphalt. The roller and the scraper on the side surface of the roller are arranged on the side of the first gun head to scrape off the softened marking line, preventing the marking line from melting into the asphalt and affecting the implementation of the subsequent process. The labor intensity of the workers is reduced. The heating process is divided into three stages by the branch pipe and the butterfly valve, and the asphalt of the surface layer, the middle layer and the bottom layer is heated respectively, ensuring that the asphalt is heated completely and uniformly.

[0004] The utility model discloses still provide with above-mentioned multistage asphalt pavement on -the -spot heat regeneration equipment, include: base, the base upper surface fixed connection shield, the base upper surface fixed connection has telescopic link, the telescopic link output fixed connection has clamping plate, the clamping plate surface is provided with gas cylinder, the base lower surface fixed connection has expansion plate, the expansion plate lower surface fixed connection has wheel support, the wheel support inside is provided with wheel, the pipe support inside fixed connection has flow guide pipe, the flow guide pipe one end communication has shunt pipe, the shunt pipe away from flow guide pipe one end communication has first gun head, second gun head and third gun head, the shunt pipe inside is provided with butterfly valve. Through above-mentioned component, through setting up branch pipe to gas shunt, and be provided with butterfly valve control heating temperature in branch pipe end, make first gun head only with the softening of the mark line preheats asphalt, through the cylinder and the scraping blade of side surface of first gun head side setting up scrape the softening mark line, prevent the mark line melt into the inside influence of asphalt subsequent process implementation, reduce the labor intensity of staff, and through shunt pipe and butterfly valve divide into three sections heating process, respectively to the asphalt of surface layer, middle layer and bottom layer heat, ensure that asphalt heats completely and evenly.

[0005] According to the multistage asphalt pavement on-the-spot heat regeneration equipment, the telescopic link has two and is located at both sides of the gas cylinder, and the clamping plate away from the telescopic link one end is in contact with the gas cylinder.

[0006] According to the multistage asphalt pavement on-the-spot heat regeneration equipment, the expansion plate has two and is located at both sides of the base, and the wheel has two and is located at both ends of the wheel support. Through the above components, the components on the upper surface of the base can be easily controlled to rise and fall, so as to be suitable for the condition that the edge height of the pavement is not the same, and the distance between the heating components and the pavement can be controlled.

[0007] According to the multistage asphalt pavement on-the-spot heat regeneration equipment, the flow guide pipe away from the shunt pipe one end is in communication with the gas cylinder, and the shunt pipe away from the flow guide pipe one end is provided with a plurality of pipe mouths. Through the above components, the gas in the gas cylinder can be introduced into the flow guide pipe, and then input into the end part of the shunt pipe through the shunt pipe.

[0008] According to the multistage asphalt pavement on-the-spot heat regeneration equipment, the butterfly valve has three and is located in the first gun head, the second gun head and the third gun head, and the three butterfly valve end parts are fixedly connected with the first gear. Through the above components, the gas flow of the control device can be easily controlled to control the heating speed of the asphalt pavement.

[0009] According to the multistage asphalt pavement on-the-spot heat regeneration equipment, the first gear is meshingly connected with the second gear, and the second gear is fixedly connected with the rotating handle inside. Through the above components, the second gear can be rotated to drive the first gear to rotate by the staff, so as to control the gas flow.

[0010] The utility model relates to a multistage asphalt pavement in-situ hot recycling equipment, rotating motor is fixedly connected in the base, rotating motor output fixedly connected with the drum, provides power for the drum rotation through above component, drives the scraper rotation of drum surface.

[0011] The utility model relates to a multistage asphalt pavement in-situ hot recycling equipment, a plurality of scrapers are fixedly connected with the drum surface, the drum side is provided with a collection frame, and the drum is located first gun head side surface, through above component, the softening mark line is scraped, and the mark line is collected.

[0012] The utility model relates to a multistage asphalt pavement in-situ hot recycling equipment, the material quality of scraper is soft, and the scraper side surface is in contact with the top end of collection frame, through above component, the mark line scraped by scraper is conveniently wiped into the inside of collection frame.

[0013] Beneficial effects:

[0014] Compared with the prior art, the utility model discloses a multistage asphalt pavement in-situ hot recycling equipment, which comprises a base, a rotating motor is fixedly connected in the base, a rotating motor output fixedly connected with the drum, provides power for the drum rotation through above component, drives the scraper rotation of drum surface. BRIEF DESCRIPTION OF DRAWINGS

[0015] The utility model will be further explained in connection with the drawings and examples;

[0016] Figure 1 It is the overall structure schematic diagram of the utility model multistage asphalt pavement in-situ hot recycling equipment;

[0017] Figure 2 It is the front cross section structure schematic diagram of the utility model multistage asphalt pavement in-situ hot recycling equipment;

[0018] Figure 3 It is the side cross section structure schematic diagram of the utility model multistage asphalt pavement in-situ hot recycling equipment;

[0019] Figure 4 It is the structure schematic diagram of the utility model multistage asphalt pavement in-situ hot recycling equipment Figure 2 A structure schematic diagram;

[0020] Figure 5 It is the structure schematic diagram of the utility model multistage asphalt pavement in-situ hot recycling equipment Figure 3Structure schematic view at B.

[0021] Legend:

[0022] 1, base; 2, shield; 3, telescopic rod; 4, clamping plate; 5, gas tank; 6, telescopic plate; 7, wheel frame; 8, wheel; 9, pipe frame; 10, flow guide pipe; 11, shunt pipe; 12, first gun head; 13, second gun head; 14, third gun head; 15, butterfly valve; 16, rotating motor; 17, roller; 18, scraper; 19, collection frame; 20, first gear; 21, second gear; 22, rotating handle. DETAILED DESCRIPTION

[0023] This part will describe the specific embodiments of the utility model in detail, the preferred embodiments of the utility model are shown in the drawings, the role of the drawings is to supplement the description of the text part with graphics, so that people can intuitively and visually understand each technical feature and the overall technical scheme of the utility model, but it cannot be understood as the limitation of the protection scope of the utility model.

[0024] Reference Figures 1-5 , the utility model discloses a kind of multistage asphalt pavement in-place hot recycling equipment, comprising: base 1, support is provided to upper part, base 1 upper surface is fixedly connected with shield 2, protect gas tank 5, flow guide pipe 10 and second gear 21 prevent external sundries from affecting device operation, base 1 upper surface is fixedly connected with telescopic rod 3, moves clamping plate 4, telescopic rod 3 output end is fixedly connected with clamping plate 4, and the side surface of gas tank 5 is clamped, clamping plate 4 surface is provided with gas tank 5, provides gas for device, telescopic rod 3 has two and is located at the both sides of gas tank 5, clamps from the both sides of gas tank 5, increase clamping stability, clamping plate 4 far from telescopic rod 3 one end is in contact with gas tank 5, base 1 lower surface is fixedly connected with telescopic plate 6, drives the component above it to lift, telescopic plate 6 has two and is located at the both sides of base 1, increase lifting stability, telescopic plate 6 lower surface is fixedly connected with wheel frame 7, facilitate installation wheel 8 and provide support for wheel 8, wheel frame 7 is internally provided with wheel 8, facilitate control device movement, wheel 8 has two and is located at the both ends of wheel frame 7, increase moving stability, base 1 inside is fixedly connected with rotating motor 16, provides power for the rotation of roller 17, rotating motor 16 output end is fixedly connected with roller 17, drives scraper 18 to rotate, roller 17 surface is fixedly connected with several scrapers 18, and the softening mark line is scraped, roller 17 side is provided with collection frame 19, and the mark line on the surface of scraper 18 is collected, roller 17 is located at the side surface of first gun head 12, after first gun head 12 preheats asphalt and softens mark line, immediately scrapes, the material texture of scraper 18 is soft, facilitate mark line on the surface of scraper 18 to be wiped to the inside of collection frame 19, the side surface of scraper 18 is in contact with the top end of collection frame 19;

[0025] The pipe frame 9 limits the movement of the flow guide pipe 10 and the shunt pipe 11, prevents the pipes from being wound together, and is fixedly connected with the flow guide pipe 10 inside. The flow guide pipe 10 guides the gas into the shunt pipe 11. One end of the flow guide pipe 10 is communicated with the shunt pipe 11, which separates the gas and inputs it into the inside of the gun head. The end of the flow guide pipe 10 away from the shunt pipe 11 is communicated with the gas tank 5, which guides the gas in the gas tank 5 into the inside of the flow guide pipe 10. A plurality of pipe openings are arranged at the end of the shunt pipe 11 away from the flow guide pipe 10, which respectively input the gas into the inside of the three gun heads. The end of the shunt pipe 11 away from the flow guide pipe 10 is communicated with the first gun head 12, the second gun head 13 and the third gun head 14, which grade heats the asphalt pavement. The shunt pipe 11 is provided with butterfly valves 15 inside, which facilitate the control of the gas flow rate of the gun head. The butterfly valves 15 are three and are arranged inside the first gun head 12, the second gun head 13 and the third gun head 14. First gears 20 are fixedly connected with the end of the butterfly valves 15, which transmit the rotating force to the end of the butterfly valves 15. Second gears 21 are meshingly connected with the first gears 20, which transmit the rotating force to the first gears 20. Rotatable handles 22 are fixedly connected with the inside of the second gears 21, which facilitate the rotation of the second gears 21.

[0026] Working principle: when using the device, start the telescopic rod 3 so that the clamping plate 4 clamps the gas tank 5, so as to be suitable for gas tanks 5 of different sizes, input the gas into the guide pipe 10 inside through the gas tank 5, input the gas into the shunt pipe 11 inside through the guide pipe 10, input the gas into the first gun head 12, the second gun head 13 and the third gun head 14 inside through the three pipe openings of the shunt pipe 11 respectively, the worker rotates the rotating handle 22 to drive the second gear 21, so that the first gear 20 connected with the second gear 21 rotates, the first gear 20 drives the butterfly valve 15 to rotate, so as to control the output of the gas of the first gun head 12, the second gun head 13 and the third gun head 14, so as to control the heating efficiency of the asphalt pavement, and the first gun head 12 heats the pavement to between one hundred degrees Celsius and one hundred and forty degrees Celsius, the second gun head 13 heats the pavement to between one hundred and forty degrees Celsius and one hundred and sixty degrees Celsius, and the third gun head 14 heats the pavement to between one hundred and sixty degrees Celsius and one hundred and eighty degrees Celsius, realizing the hierarchical heating of the asphalt surface layer, the middle layer and the base layer, ensuring that the asphalt is heated completely and uniformly, and when the surface of the pavement is provided with hot-melt marking lines, the first gun head 12 can soften the marking lines, the rotating motor 16 is started to rotate the roller 17, which drives the scraper 18 to scrape the marking lines, and through the soft material of the scraper 18, the marking lines on the surface of the scraper 18 can be wiped into the collecting frame 19, completing the collection, preventing the marking lines from mixing into the asphalt and affecting the subsequent process, without the need for manual scraping by the workers, reducing the labor intensity of the workers, the extension plates 6 arranged on the lower surface of the base 1 can control the height of the base, so as to control the distance between the heating component and the pavement and control the heating speed, and when the asphalt at the edge of the pavement is not the same height as the edge pavement, or when the edge of the pavement is provided with a flower bed, the extension length of the extension plates 6 on both sides of the base 1 can be changed, so as to be suitable for more environments.

[0027] The above embodiment of the utility model is described in detail in combination with the drawings, but the utility model is not limited to the above embodiment, and various changes can be made within the knowledge range possessed by ordinary skilled persons in the technical field without departing from the purpose of the utility model.

Claims

1. A multi-stage asphalt pavement hot-in-place recycling apparatus, characterized by, Include: Base (1), the base (1) upper surface is fixedly connected with a shield (2), the base (1) upper surface is fixedly connected with a telescopic rod (3), the telescopic rod (3) output end is fixedly connected with a clamping plate (4), the clamping plate (4) surface is provided with a gas cylinder (5), the base (1) lower surface is fixedly connected with a telescopic plate (6), the telescopic plate (6) lower surface is fixedly connected with a wheel carrier (7), the wheel carrier (7) is provided with a wheel (8) inside; Pipe rack (9), the pipe rack (9) is fixedly connected with a flow guide pipe (10) inside, the flow guide pipe (10) one end is communicated with a shunt pipe (11), the shunt pipe (11) is communicated with a first gun head (12), a second gun head (13) and a third gun head (14) away from the flow guide pipe (10) one end, the shunt pipe (11) is provided with a butterfly valve (15) inside.

2. The multi-stage asphalt pavement hot-in-place recycling equipment according to claim 1, characterized in that, The telescopic rod (3) has two and is located on both sides of the gas cylinder (5), the clamping plate (4) away from the telescopic rod (3) one end is in contact with the gas cylinder (5).

3. The multi-stage asphalt pavement hot-in-place recycling equipment according to claim 1, characterized in that, The telescopic plate (6) has two and is located on both sides of the base (1), the wheel (8) has two and is located at both ends of the wheel carrier (7).

4. The multi-stage asphalt pavement hot-in-place recycling device according to claim 1, characterized in that, The flow guide pipe (10) is communicated with the gas cylinder (5) away from the shunt pipe (11) one end, the shunt pipe (11) is provided with a plurality of pipe orifices away from the flow guide pipe (10) one end.

5. The multi-stage asphalt pavement hot-in-place recycling device according to claim 1, characterized in that, The butterfly valve (15) has three and is located inside the first gun head (12), the second gun head (13) and the third gun head (14), three the butterfly valve (15) end is fixedly connected with a first gear (20).

6. The multi-stage asphalt pavement hot-in-place recycling device according to claim 5, characterized in that, The first gear (20) is engaged with a second gear (21), the second gear (21) is fixedly connected with a rotating handle (22) inside.

7. The multi-stage asphalt pavement hot-in-place recycling device according to claim 6, characterized in that, The base (1) is fixedly connected with a rotating motor (16) inside, the rotating motor (16) output end is fixedly connected with a roller (17).

8. The multi-stage asphalt pavement hot-in-place recycling device according to claim 7, characterized in that, The roller (17) surface is fixedly connected with a plurality of spatulas (18), the roller (17) side is provided with a collection frame (19), the roller (17) is located on the side surface of the first gun head (12).

9. The multi-stage asphalt pavement hot-in-place recycling device according to claim 8, characterized in that, The spatula (18) is made of soft material, the spatula (18) side surface is in contact with the top end of the collection frame (19).

Citation Information

Patent Citations

  • Asphalt pavement hot in-place recycling device

    CN220579717U