CN204982607U - Novel bituminous paving hot in -Place recycling machine - Google Patents

Abstract

The utility model discloses a novel asphalt pavement hot-in-place regeneration machine, which comprises a new material adding device, a recycled material collecting device, a recycled material layered heating device and a regenerated waste dust recycling device; the new material adding device and the recycled material collecting The devices are respectively used to provide new asphalt mixture and pavement reclaimed material for the recycled material layered heating device; the recycled material layered heating device includes a multi-layer heating mixing tank arranged up and down, and a mixing auger is arranged in the heating mixing tank , the outer side of the heating mixing tank is provided with a heating plate, and the outlet of the upper heating mixing tank is connected with the feeding port of the heating mixing tank adjacent to the lower layer; The layered heating device is connected to the burner through the hot air delivery pipe, and the burner is connected to the road surface heating plate through the hot air delivery pipe. The utility model improves the final paving and rolling temperature, and at the same time changes the problem of unorganized emission of waste asphalt smoke and dust of traditional regeneration units.

Description

A New Type of Hot-in-Place Recycling Machine for Asphalt Pavement

technical field

The utility model relates to a novel on-site hot regeneration machine for asphalt pavement.

Background technique

The hot-in-place recycling machine produced by various brand manufacturers at home and abroad now uses the recycled material heated by the original road surface to use the horizontal mixing cylinder that comes with the regeneration unit to mix and spread the raked recycled material. Due to the heating of the original road surface The heating capacity of the machine is limited, and the paving temperature of the general pavement regeneration mixing is 120--130 ℃, which is lower than the national standard paving temperature of asphalt mixture 140-160 ℃. Moreover, the existing in-situ recycling machine has the problem of unorganized emission of waste asphalt smoke and dust in the working process, which wastes energy and pollutes the environment.

Contents of the invention

Based on the above-mentioned technical problems, the utility model provides a new in-situ thermal regeneration machine for asphalt pavement.

The technical solution adopted in the utility model is:

A new type of asphalt pavement hot-in-place regeneration machine, including a new material adding device, a recycled material collecting device, a recycled material layered heating device, and a regenerated waste dust recycling device, a new material adding device, a recycled material collecting device, and a recycled material layered heating device The device and the regenerated waste smoke and dust recycling device are all set on the vehicle body; the new material adding device and the recycled material collecting device are connected to the recycled material layered heating device; the recycled material layered heating device includes a multi-layered heating device arranged up and down Mixing tank, the upper part of one side of the heating mixing tank is provided with a material inlet, the lower part of the other side of the heating mixing tank is provided with a material outlet, the heating mixing tank is equipped with a mixing auger, and the outer side of the heating mixing tank is provided with a heating plate layer, the discharge port of the upper heating mixing cylinder communicates with the feeding inlet of the heating mixing cylinder adjacent to the lower layer; the regenerated waste smoke and dust recycling device includes a hot air conveying pipeline and a burner, and the hot blast conveying pipeline includes a first hot air conveying pipeline and a The second hot air delivery pipe, the regenerative material layered heating device is connected to the burner through the first hot air delivery pipe, and the burner is connected to the road surface heating plate through the second hot air delivery pipe.

Preferably, the recycled material collection device includes a receiving bucket and an inclined feeding conveyor belt, the receiving bucket is arranged at the bottom end of the inclined feeding conveyor belt, and the top end of the inclined feeding conveyor belt is connected to the recycled material layered heating device The new material adding device includes a new material feed hopper and a new material conveyor belt, the new material feed hopper is arranged on one end of the new material conveyor belt, and the other end of the new material conveyor belt is connected with an inclined feeding conveyor belt or a regenerated material point Layer heating device.

Preferably, the heating mixing cylinder is rectangular, including a cylinder body and a cylinder head, and the mixing auger is arranged along the length direction of the cylinder body; the heating plate layer is arranged on the cylinder head in a flat plate structure, or The heating plate layer is arranged on the cylinder body, and the section is U-shaped; the heating plate layer is connected with the heating fuel chamber.

Preferably, the uppermost heating mixing tank is also connected to the regeneration agent spraying device.

Preferably, the second hot air delivery pipeline is provided with a first hot air blower and a high temperature resistant filter.

Preferably, a hot air collection cover is arranged above the road surface heating plate, the hot air collection cover is connected to a third hot air delivery pipe, the third hot air delivery pipe is connected to a burner, and a second hot air blower is arranged on the third hot air delivery pipe .

The beneficial technical effect of the utility model is:

The utility model uses a layered heating device for recycled materials to heat the recycled materials twice, and the temperature of the heated recycled mixture is raised to 140-160°C, which improves the final paving and rolling temperature, and at the same time ensures the smoothness of the recycled mixture. Uniformity, so that the quality of the regenerated pavement can be fully guaranteed. In addition, the utility model adopts the regenerative waste fume recycling device to recycle the asphalt fume and a large amount of heat generated by heating, and the waste fume is recycled to the burner for reuse, and is used for the heating plate of the regenerator to heat and keep the road surface warm. The utility model utilizes these two sets of devices to solve the problem of low temperature and difficult quality assurance when the traditional recycler paves regenerated materials, and greatly improves the quality of the regenerated road surface. Emission issues, energy conservation, and enhance the competitiveness of independent innovation.

Description of drawings

Below in conjunction with accompanying drawing and specific embodiment the utility model is further described:

Fig. 1 is the overall structural representation of the utility model;

Fig. 2 is a structural schematic diagram of an embodiment of a regenerated material layered heating device;

Fig. 3 is a schematic diagram of the structure of the regenerating waste soot recycling device.

detailed description

With reference to the accompanying drawings, a new type asphalt pavement hot-in-place recycling machine includes a new material adding device 1, a recycled material collecting device 2, a recycled material layered heating device 3 and a recycling device 4 for regenerated waste smoke and dust. The new material adding device 1 is used to provide fresh asphalt material for the reclaimed material layered heating device 3 , and the reclaimed material collecting device 2 is used to provide the reclaimed material layered heating device 3 with pavement reclaimed material. The recycled material collection device 2 includes a receiving bucket 201 and an inclined feeding conveyor belt 202. The receiving bucket 201 is arranged at the bottom of the inclined feeding conveyor belt 202, and the top of the inclined feeding conveyor belt 202 is connected to the layered heating of recycled materials. device 3. Described new material adding device 1 comprises new material feeding hopper 101 and new material conveyor belt 102, and new material feeding hopper 101 is arranged on one end of new material conveyor belt 102, and the other end of new material conveyor belt 102 is connected with inclined feeding conveying Take 202. The regenerated material layered heating device 3 includes a three-layer heating mixing tank 301 arranged up and down, the upper part of one side of the heating mixing tank 301 is provided with a feed port 302, and the lower part of the other side of the heating mixing tank 301 is provided with a discharge port 303 The heating mixing tank 301 is provided with a mixing auger 304, the outside of the heating mixing tank is provided with a heating plate 305, and the outlet of the upper heating mixing tank communicates with the feeding port of the lower adjacent heating mixing tank. The top of the inclined feeding conveyor belt 202 is connected to the feed inlet of the uppermost heating mixing tank. The uppermost heating mixing tank is also connected with the regeneration agent spraying device 5 . The regenerative waste fume dust recycling device 4 includes a hot air conveying pipe and a burner 401 , and the hot air conveying pipe includes a first hot air conveying pipe 402 and a second hot air conveying pipe 403 . The regenerated material layered heating device 3 is provided with a smoke exhaust pipe 306, the smoke exhaust pipe 306 communicates with the first hot air delivery pipe 402, the first hot air delivery pipe 402 is connected to the burner 401, and the burner 401 passes the second hot air The delivery pipe 403 is connected to the road surface heating plate 404 . A first hot air blower 405 and a high temperature resistant filter 406 are arranged on the second hot air delivery pipe 403 .

Further, the heating mixing cylinder 301 is rectangular, including a cylinder body and a cylinder head, and the mixing auger 304 is arranged along the length direction of the cylinder body. The heating plate layer 305 is arranged on the cylinder head and has a planar plate structure. The heating plate layer 305 is connected to the heating fuel chamber 6 , and the heating fuel chamber 6 is used to transmit heat for the heating plate layer 305 .

Further, the new material adding device 1, the regenerated material collecting device 2, the regenerated material stratified heating device 3 and the regenerated waste soot recycling device 4 are all arranged on the vehicle body 7, and the equipment power and operation system. The equipment power and operating system includes an engine 8 and an operating console 9, etc., to control the movement of the vehicle body in the front, rear and left and right directions, and to control related devices. A regeneration agent storage tank 10 is also provided on the vehicle body 7 .

Furthermore, a hot air collection cover 407 is arranged above the road surface heating plate 404, and the hot air collection cover 407 is connected to the third hot air delivery pipe 408, and the third hot air delivery pipe 408 is connected to the burner 401. 408 is provided with a second hot air blower 409 . A third hot air blower 4010 is arranged on the first hot air conveying pipe.

The working principle of this utility model is as follows: the front end of the recycling machine is a new material feed hopper 101 for new asphalt mixture, and the original road surface needs to be designed with a mix ratio before the regeneration construction, and 0--30% fresh mix can be selected to determine the degree of road surface damage. Asphalt mixture, the newly added asphalt mixture enters the regenerator from the new material feed hopper 101 at the front end of the regenerator, and enters the recycled material layered heating device 3 through the conveyor belt. The rear part of the second row of wheels in the advancing direction of the recycling machine is a recycled material collection device 2, and the recycled material collection device 2 collects the recycled material into the recycled material layered heating device 3. In the recycled material layered heating device 3, the freshly mixed asphalt mixture and the recycled material are mixed and heated through the multi-layer heating mixing tank 301 in sequence, and the recycled material entering the mixing tank is heated from the original 70-80 °C to 140-- 160°C, which can fully ensure the paving temperature of the recycled mixture and ensure compactness of rolling. There is a road surface heating plate 404 in the middle and lower part of the regenerator, which is used to insulate and heat the regenerated and raked pavement to ensure sufficient thermal connection between the regenerated layer and the raked top surface. The regenerant spraying device 5 is installed on the top of the heating mixing cylinder 301 on the uppermost layer. The amount of regenerant spraying shall be determined according to the asphalt aging regeneration test determined in advance in the laboratory to add the amount of regenerant. After spraying, use the mixing tank mixing auger 304 to mix the regenerant with the old asphalt mixture. The regenerated material mixed by the multi-layer heating mixing tank 301 passes through the bottom and rear outlet of the bottom heating mixing tank 301, and directly After being discharged, the recycled material is paved on the recycled road surface after being picked up by the following road paver, and rolled by a road roller. The utility model adopts a layered heating and mixing method, which fully ensures the uniformity of the recycled material mixing, and improves the final paving and rolling temperature, so that the quality of the recycled road surface can be fully guaranteed. At the same time, a large amount of high-temperature asphalt smoke is generated during the layered heating process of the heating mixing tank 301, and the high-temperature asphalt smoke is transported to the burner 401 through the first hot air pipeline 402. A hot air blower 405 and a second hot air delivery pipe 403 deliver high temperature hot air to a high temperature resistant filter 406, and then enter the road surface heating plate 404 to heat and insulate the old road surface. The heated hot air is collected by the hot air collection cover 407, and sent to the burner 401 through the third hot air delivery pipe 408 for hot air recycling, which minimizes the loss of hot air and saves energy.

Parts not mentioned in the above methods can be realized by adopting or referring to existing technologies.

The above has only described the basic principle and preferred implementation of the utility model, it should be pointed out that for those skilled in the art, without departing from the structure of the utility model, some deformations and improvements can also be made, and these should also be considered It is the protection scope of the utility model.

Claims (6)

1. a Cost of New Type Asphalt Pavement in-situ heat regeneration machine, it is characterized in that: comprise virgin material adding set, reworked material gathering-device, reworked material leveled heating device and regenerating waste used smoke dust circulation and utilize device, virgin material adding set, reworked material gathering-device, reworked material leveled heating device and regenerating waste used smoke dust circulation utilize device to be all arranged on vehicle body; Described virgin material adding set and reworked material gathering-device are all connected with reworked material leveled heating device; Described reworked material leveled heating device comprises the Multi-layer warming arranged up and down and mixes cylinder, the upper lateral part that cylinder is mixed in heating is provided with charging aperture, the opposite side bottom that cylinder is mixed in heating is provided with discharging opening, heating is mixed in cylinder and is provided with mix auger, the arranged outside that cylinder is mixed in heating has heating flaggy, and upper strata heating is mixed the charging aperture that the heating adjacent with lower floor of the discharging opening of cylinder mix cylinder and is communicated with; Described regenerating waste used smoke dust circulation utilizes device to comprise hot blast conveying pipe road and burner, hot blast conveying pipe road comprises the first hot blast conveying pipe road and the second hot blast conveying pipe road, described reworked material leveled heating device connects burner by the first hot blast conveying pipe road, and described burner is by the second connection road surface, hot blast conveying pipe road heating panel.

2. a kind of Cost of New Type Asphalt Pavement in-situ heat regeneration machine according to claim 1, it is characterized in that: described reworked material gathering-device comprises rewinding scraper bowl and oblique feeding conveyer belt, rewinding scraper bowl is arranged on the bottom of oblique feeding conveyer belt, and the top of oblique feeding conveyer belt connects reworked material leveled heating device; Described virgin material adding set comprises virgin material feed hopper and virgin material conveyer belt, and virgin material feed hopper is arranged on one end of virgin material conveyer belt, and the other end of virgin material conveyer belt connects oblique feeding conveyer belt or reworked material leveled heating device.

3. a kind of Cost of New Type Asphalt Pavement in-situ heat regeneration machine according to claim 1, is characterized in that: described heating is mixed cylinder and is rectangle, and comprise cylinder body and cylinder cap, described mix auger is laid along the length direction of cylinder body; Described heating flaggy is arranged on cylinder cap, and in flat-faced tube structure, or described heating flaggy is arranged on cylinder body, and cross section takes the shape of the letter U; Heating flaggy is connected with heating fuel room.

4. a kind of Cost of New Type Asphalt Pavement in-situ heat regeneration machine according to claim 1, is characterized in that: the heating of the described the superiors is mixed cylinder and is also connected with spraying device for regeneration agent.

5. a kind of Cost of New Type Asphalt Pavement in-situ heat regeneration machine according to claim 1, is characterized in that: described second hot blast conveying pipe road is provided with the first unit heater and high-temperature resistant filter.

6. a kind of Cost of New Type Asphalt Pavement in-situ heat regeneration machine according to claim 1, it is characterized in that: the top of described road-surface heating plate is provided with hot air collecting hood, hot air collecting hood connects the 3rd hot blast conveying pipe road, 3rd hot blast conveying pipe road connects burner, and the 3rd hot blast conveying pipe road is provided with the second unit heater.