Multi-layered heating device for heating bituminous pavement milling material

A technology of asphalt pavement and heating device, which is applied to roads, roads, road repair and other directions, can solve the problems of high temperature of asphalt mixture, affect the performance of asphalt, and consume large fuel, so as to improve the temperature of roadbed, save fuel, and improve heating. The effect of efficiency

Active Publication Date: 2019-08-23
CHANGAN UNIV
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Problems solved by technology

Therefore, the existing two methods of heating the old ridge of asphalt mixture not only need to consume a large amount of fuel, but also cause the temperature of the asphalt mixture to be too high, making the asphalt aging and deforming, which seriously affects the performance of the asphalt

Method used

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  • Multi-layered heating device for heating bituminous pavement milling material
  • Multi-layered heating device for heating bituminous pavement milling material
  • Multi-layered heating device for heating bituminous pavement milling material

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Embodiment Construction

[0032] In the hot-in-place regeneration process, the road surface is first heated continuously by the road surface heating machine, and then the asphalt pavement is thermally milled by the road surface milling vehicle, and the old road surface is heated and milled to form a trapezoidal ridge of asphalt mixture. In the present invention, the scraper feeder 1 is suspended below the rear end of the milling machine, and the frame of the device is dragged and hung on the rear end of the milling machine simultaneously. The material ridge produced after the milling machine works is transmitted to a plurality of scraper elevators 2 through the scraper feeder 1, and these scraper elevators 2 are respectively transported to each layer of conveying device 4 through the feed port 9; The conveying device 4 on the first floor is under the action of the first driving device, and the chain plate 403 on it conveys the asphalt mixture to the discharge port 13 at the rear. When the screw distribu...

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Abstract

The invention discloses a multi-layered heating device for heating a bituminous pavement milling material. The heating device comprises a frame, wheels are arranged at the bottom of the frame, a heating box is arranged above the frame, a plurality of layers of conveying devices are arranged inside the heating box from top to bottom and are used for conveying an asphalt mixture to fully heating theasphalt mixture, a scraper feeder is arranged at the position, close to the pavement, of the front of the frame, the scraper feeder is used for conveying the asphalt mixture on the pavement to a feeding opening in front of each layer of conveying device through a plurality of scraper lifting machines, a hot blast stove and a circulating fan are arranged on the rear of the frame through a mountingframe, the rear part of the heating box is provided with a hopper used for collecting the heated asphalt mixture output by discharge ports, a stirring cylinder is arranged at the lower part of the rear part of the frame, and the lower part of the hopper is connected with a feeding port of the stirring cylinder.

Description

technical field [0001] The invention belongs to the technical field of highway asphalt pavement maintenance equipment, and relates to in-situ thermal regeneration equipment for asphalt pavement, in particular to an in-situ thermal regeneration hot air circulation multi-level heating device. Background technique [0002] Hot-in-place regeneration is a convenient, energy-saving, high-efficiency, and environmentally-friendly new pavement repair technology. Its construction process is to heat the diseased pavement to a certain temperature, heat and rake it loosely, add regeneration agent to stir on the spot, and pave and roll to finalize the shape. The control of pavement regeneration temperature affects the quality of regenerated pavement to a great extent. Temperature control includes old pavement heating temperature control, new mixture mixing temperature control, temperature control during paving and rolling, etc. Among them, the control of the mixing temperature of the new...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01C23/06
CPCE01C23/065
Inventor 马登成兰芬任杠维曹雨轩
Owner CHANGAN UNIV
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