Microwave in-situ regenerative asphalt pavement maintenance vehicle and construction method

Abstract

The invention discloses a microwave in-situ regenerative asphalt pavement maintenance vehicle. The microwave in-situ regenerative asphalt pavement maintenance vehicle comprises an automobile chassis, a frame, a drum stock bin, a heating system, a microwave heating wall system, a generator set, a transformer cubicle, a cooling system, an emulsified asphalt system, a hydraulic system, an electrical system and a road rolling tool. The microwave in-situ regenerative asphalt pavement maintenance vehicle has the advantages of high efficiency, energy conservation, environment friendliness, moderate heating depth, small interlayer temperature gradient and uniform heating; microwave magnetron heating is utilized as a heat source, heating and heat preservation of emulsified asphalt are realized, and cooling of a microwave generating magnetron self is also realized, so that working stability of the microwave generating magnetron is improved, and the aims of saving energy and reducing consumption are achieved; multilayered shielding combination is adopted, and a shielding effect on high frequency and low frequency electromagnetic fields is good; overturning of more than 90 degrees of a microwave heating wall can be realized, working condition adaptability is good, and the difficulty of construction of a ramp of an asphalt pavement is solved; and the complete machine adopts multi-functional integration and has strong disease adaptability, high repairing efficiency and good repairing quality.

Description

technical field [0001] The invention relates to an asphalt pavement maintenance vehicle, in particular to a microwave on-site regeneration type comprehensive maintenance vehicle for asphalt pavement. Background technique [0002] During the use of asphalt pavement, various diseases such as potholes, cracks, wrapping, pitting, etc. often occur. The asphalt pavement maintenance vehicle is a kind of maintenance equipment specially used to deal with the above diseases. Among them, the in-situ regenerative asphalt pavement maintenance vehicle is one of them. The existing on-site regenerative asphalt pavement maintenance vehicles have the following disadvantages: the in-situ regenerative heating wall mostly uses fuel / gas open flame heating, gas infrared heating or diesel hot air circulation heating, and the heating temperature of the asphalt pavement is not easy to control accurately, which is easy to cause asphalt pavement The aging and coking of 1mm~5mm surface asphalt will red...

AI Technical Summary

Problems solved by technology

The existing on-site regenerative asphalt pavement maintenance vehicles have the following disadvantages: the in-situ regenerative heating wall mostly uses fuel / gas open flame heating, gas infrared heating or diesel hot air circulation heating, and the heating temperature of the asphalt pavement is not easy to control accurately, which is easy to cause asphalt pavement The aging and coking of 1mm~5mm surface asphalt will reduce the road performance of the pavement after regeneration, and the construction process is often accompanied by a large amount of toxic blue smoke, which has serious environmental pollution problems; the heating depth of the in-situ regeneration heating wall is not enough, and the working conditions are suitable poor sex

The heating depth of the existing pavement heating machine is 30mm~50mm deep, so the regeneration thickness can only be limited to 30mm~50mm, the deep disease cannot be well treated, and the adaptability to working conditions is poor; the existing 2.45GHz frequency microwave is used to heat the asphalt Pavement technology, the heating depth can reach 150mm, but the actual in-situ regeneration depth is less than 80mm, so the heating energy of the 80mm~150mm asphalt layer is all wasted, the energy utilization rate is low, and the deep asphalt material is easily pushed after the vehicle passes by , so that the gradation of the original pavement will change, which will affect the quality of the regenerated pavement; most of the existing on-site regenerative asphalt pavement maintenance vehicles do not have asphalt silos, and it is impossible to add a certain proportion of new asphalt mixture during operation, and those with silos mostly use liquefaction Petroleum gas is used as fuel, and it is heated by open flame or infrared radiation, which can easily cause scorching and aging of asphalt mixture, and there are safety hazards such as liquefied gas leakage and bursting; most of the heating wall turning mechanisms on the market are completed by hydraulic cylinders, and the turning angle is ≤90° , there is a problem that the ramp cannot be constructed, and the adaptability to working conditions is poor

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