Microwave heating technology from quangongzi's blog

The practical results show that the microwave heating has the characteristics of fast heating speed, uniform heating and large heating depth. By means of microwave heating, the microwave is used to improve the heating and maintenance of the vehicle. The cost of repairing pits is lower than that of traditional heat radiation heating integrated maintenance vehicles, and the measures taken by microwave heating integrated maintenance vehicles to prevent microwave leakage are introduced.

With the increasing mileage of expressway traffic in Fujian Province, the increasing age of the province, the current 11 only traditional radiation heating asphalt pavement repair car has been unable to meet the province's highway asphalt pavement maintenance needs. In order to ensure the smooth development of maintenance tasks, to ensure the safe and smooth flow of the highway, the purchase of new, suitable for the maintenance of the province's asphalt pavement integrated maintenance equipment has become a top priority. From August to November 2010, Fujian Expressway Maintenance Engineering Co., Ltd. introduced a microwave heating asphalt integrated maintenance vehicle in Longyan area conservation company trial, and the relevant performance indicators, the cost of the actual calculation.Road Repair Equipment - Doan Machinery

The Principle and Advantages and Disadvantages of Existing Asphalt Pavement Repair

Fujian Province Highway Maintenance Engineering Co., Ltd. to undertake Fujian Province, 2700 km highway maintenance tasks. Pavement pit repair task is mainly composed of 11 early asphalt pavement integrated maintenance vehicles to complete. The car on the asphalt pavement heating method for the heat radiation heating. The principle of heating: liquid liquefied gas after vaporization in the bottom of the heating wall to fully burn, heat through the refractory bricks blowing to the ground, intermittent heating, layers of penetration. This type of heating is actually a visible light in the pavement, because its conduction and convection accounted for a large proportion of radiation heat is small, easy to make the road was scorched or oxidized. It is not conducive to the recycling of asphalt mixture. The advantages of the thermal radiation heating method are: heating wall heat storage capacity, radiation temperature is high, thus ensuring sufficient radiation energy. Refractory brick work, the temperature reached more than 1000 ℃, the surface of a red, easy ignition, and the temperature in the work area more uniform. The main drawback is that, despite the use of intermittent heating, it is not easy to control the surface temperature of the heated pavement. Because a large number of visible radiation is very concentrated, energy radiation fluctuations, the peak temperature of the road again and again, not easy to balance. Refractory bricks have lower strength, higher cost, continuous high temperature use and easy to damage after vibration, increase the use of cost. Refractory brick replacement professionals and professional tools, maintenance is very convenient.