Well ring pavement hot-air type heater

Abstract

The invention belongs to the technical field of heating of bituminous mixture pavement on an outer edge of a well ring of an inspection well and in particular relates to a well ring pavement hot-air type heater. The well ring pavement hot-air type heater comprises an electric control system and a hydraulic system which are arranged on a motor vehicle, and is characterized in that a connecting rack is arranged on the motor vehicle; a moving mechanism is fixedly connected to the connecting rack; a hot-air heating mechanism is connected to the moving mechanism; the moving mechanism comprises a vertical moving device, a forward moving device, a transverse moving device and a turnover device; and the hot-air heating mechanism comprises a cover body which is hinged with the lower end of a transition rack and is provided with an air inlet and an air return port, an annular radiating cover fixed in the cover body, a hot-blast stove arranged on the upper part of the air inlet of the cover body, a light oil combustor connected with the hot-blast stove, and a fan connected with the hot-blast stove and the air return port. The bituminous mixture at the periphery of the outer edge of the well ring of the inspection well is heated in a heat conduction form by utilizing hot air generated by the hot-blast stove, and the heater is large in heating depth and high in speed, so that the pavement repair time is greatly shortened.

Description

technical field [0001] The invention belongs to the technical field of heating the asphalt mixture pavement outside the well circle of an inspection well, and in particular relates to a hot air heater for the well circle pavement. Background technique [0002] Asphalt concrete pavement has been widely used in high-grade pavements and urban roads due to its many advantages such as comfortable driving, low construction cost, and easy repair. For the surrounding areas of various inspection wells such as sewage wells, power wells, communication wells, rainwater wells, gas wells and cable TV wells arranged on the road, due to defects such as uneven paving and insufficient compaction during construction, As a result, the pavement around the well circle of the inspection well is frequently damaged, which is a major problem in the maintenance of asphalt pavement. The repair of the surrounding area of ​​the traditional inspection well is to adopt the method of manual cold excavation...

AI Technical Summary

Problems solved by technology

The disadvantage of infrared heating is that the depth of infrared heating is relatively shallow, and the surface temperature of infrared heating is too high, which will easily burn the asphalt on the road surface, and there are also cold joints in the repaired road surface

At the same time, infrared heating is easy to generate open flames. When repairing other power wells and communication wells, infrared open flames can easily burn out communication cables; open flames also make infrared heating a huge safety hazard for the repair of natural gas inspection well covers; wells with infrared heating composite materials Composites can be burned out by manhole rings or manhole covers, requiring externally heated asphalt mix to replace contaminated asphalt mix around the original well ring

Another method is the repair method of microwave heating. Its disadvantage is that the concentration of combustible gas in the well must be detected before operation. If the concentration is high, blowing into the well or natural ventilation will reduce the concentration of combustible gas. During the work, the well cover needs to be covered with a protective cover. to avoid ignition of biogas

Microwave heating repair can also interfere with cable communication, and it is expensive upfront and expensive to repair

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