A thermal insulation silo on an asphalt pavement maintenance vehicle

Abstract

The invention discloses a thermal insulation silo on an asphalt pavement maintenance vehicle, comprising a V-shaped asphalt mixture silo, a heat-conducting oil circulating heating system, an anti-caking device, a screw conveying system and a material door opening mechanism. The main technology is to use the diesel burner to heat the heat-conducting oil fire tube and the electric-heating heat-conducting oil tank double heat source series circulation heating method; the present invention adopts the double heat source series cycle heating method, multi-point inspection and control of the heat transfer oil temperature, high thermal efficiency, uniform heating and adaptability Strong; the oval heat-conducting oil coil with S-shaped arrangement is used, and the tube wall and the silo wall are in surface contact, with a large heat exchange area and good sealing performance, which solves the problem of low heating efficiency in the line contact between the circular heat-conducting oil pipe and the silo wall. The silo wall is lined with a heat-conducting oil tank to heat the heat-conducting oil, which is easy to leak; the heat preservation effect is good, energy saving and high efficiency; the anti-caking device is used for real-time stirring, which can effectively prevent the asphalt mixture from cooling and arching and segregation. Fast and no jams.

Description

technical field [0001] The invention relates to a thermal insulation silo on an asphalt pavement maintenance vehicle, in particular to an asphalt mixture thermal insulation silo heated by heat conduction oil of an asphalt pavement maintenance vehicle. Background technique [0002] The asphalt pavement maintenance vehicle is usually equipped with an asphalt mixture insulation silo, which is used to load hot-mixed asphalt mixture to the asphalt mixing plant, and carry out long-term long-distance insulation storage and transportation. Existing thermal insulation silos for asphalt mixture mostly use liquefied petroleum gas as fuel. The open flame or infrared radiation generated by the combustion of liquefied petroleum gas heats the side wall of the silo. The heating temperature is as high as 800°C, which easily causes scorching and aging of the asphalt mixture, and The use pressure of liquefied petroleum gas is relatively high, and there are safety hazards such as leakage and bu...

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Problems solved by technology

[0003] The purpose of the present invention is to overcome the above-mentioned deficiencies in the prior art, and to provide a thermal insulation silo on an asphalt pavement maintenance vehicle: a dual heat source serial circulation heating method of a diesel burner to heat a heat conduction oil fire tube and an electric heating heat conduction oil tank, and multi-point inspection and control of heat conduction Oil temperature, high thermal efficiency, uniform heating, and strong adaptability; S-shaped elliptical heat conduction oil coils are adopted, and the pipe wall is in surface contact with the silo wall, with a large heat transfer area and good sealing, which solves the problem of circular heat conduction. The heating efficiency of the oil pipe and the silo wall line contact is low and the silo wall is lined with a heat conduction oil tank to heat the heat conduction oil. Stirring and discharging, continuous and fast discharge without material jamming; adopting partition variable pitch screw balanced continuous conveying, the tail discharge guide groove can realize 180° rotation, control the direction and position of asphalt material conveying, high construction efficiency, save time and effort, Effectively reduce the labor intensity of workers

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