Road Building Asphalt Plant

Road building asphalt plant equipment is composed of multiple systems, one of which is the drying system, which is responsible for removing the moisture in the material and bringing it to a dry state, which is also closely related to the final mixing effect. Since it is so important, the technical characteristics of the drying system of the asphalt mixing plant equipment must be mastered. Using the drying system in the asphalt mixing plant, the aggregate can be heated and dried to reach the corresponding temperature. In order to remove the moisture in the aggregate, the drying system must provide a certain amount of heat in order to dry the moisture in the aggregate into water vapor.

The main body of the road building asphalt plant drying system is the drying drum, which is designed as a rotating, long cylindrical barrel structure. When the material comes out of the feeding belt, it will directly enter the drum from the feeding box and interact with the hot air generated by the burner, and be dried by direct contact. In order to prevent the high temperature from adversely affecting the cylinder of the asphalt mixing plant, all heat-resistant and wear-resistant boiler steel plates are used, which are processed by coil welding to ensure consistent thermal expansion before and after heating, which is in line with the basic requirements of asphalt mixing plant equipment for drying equipment.

In order to improve the heat exchange efficiency of the drying drum, air must be restricted as much as possible from the combined part of the drum and the inlet and outlet boxes to enter the drying drum. At the same time, a suitable sealing form must be adopted to reduce the occurrence of air leakage. There is another point to remind everyone that when the road building asphalt plant is in working condition, it is not allowed to adjust the sealing devices at both ends to avoid danger. In order to make the aggregate advance evenly in the drying drum and fully absorb heat, there are also rows of blades bent into a certain shape in the drum to promote its dispersion. This is also the condition for the asphalt mixing plant equipment to achieve a uniform mixing effect.