Thermal insulation bunker on bituminous pavement maintenance vehicle

Abstract

The invention discloses a thermal insulation bunker on a bituminous pavement maintenance vehicle. The thermal insulation bunker comprises a V-shaped bituminous mixture bunker, a heat-conducting oil circulation heating system, an anti-caking device, a spiral transporting system and a material door opening mechanism. The main technology is to adopt a double heat source series cyclic heating mode of heating a heat-conducting oil fire-tube by a diesel-fired burner and electrically-heating a heat-conducting oil groove. By the double heat source series cyclic heating mode, heat-conducting oil temperature is detected and controlled by multiple points. The technology has advantages of high heat efficiency, uniform heating and strong adaptability. By the use of an elliptic heat-conducting oil coil arranged in an ''S'' shape, tube wall and bunker wall are in surface contact. Thus, heat exchange area is large, airtightness is good, and the difficulty that heating efficiency is low by line contact of a circular heat-conducting oil pipe and the bunker wall and heat-conducting oil is easy to leak when heated by the bunker outer lining heat-conducting oil groove is solved. The thermal insulation bunker has a good thermal insulation effect, and is energy-saving and efficient. By the anti-caking device for real-time stirring, a bituminous mixture is effectively prevented from being cooled, caked and separated. By supplementary stirring for discharging, discharging is continuous and fast, and there is no material-blocking phenomenon.

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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