The drying and heating system can be regarded as an important part of the whole asphalt mixing station, so in the actual work, the material is treated by counter flow heating, so as to achieve the dewatering of the cold aggregate, and at the same time It is heated to a certain temperature to provide conditions for the normal and continuous operation of the asphalt mixing plant.

In the entire heating process of the asphalt mixing plant, the main purpose is to make the performance of the mixture more in line with the requirements of use, and to facilitate the good paving performance of the finished product. Typically, the heating temperature of the aggregate is approximately in the range of 160 °C - 180 °C.

The drying and heating system of the asphalt mixing station mainly comprises two parts of a drying drum and a burning device, wherein the drying drum is mainly a device for heating and drying the cold and wet aggregate. In order to make the cold and wet aggregates complete the three requirements of preheating, dehydration drying and heating and heating in a limited time, it is necessary to evenly distribute the aggregate in the drum, and also need to provide the running time for it. The discharge temperature of the asphalt mixing plant can be made to meet the specified requirements.

The burning device of the asphalt mixing plant is used to provide heat source for the cold aggregate drying heating, that is to say, in addition to selecting a suitable fuel, it is also necessary to select a suitable burner for the asphalt mixing station. In order to ensure the effect of the asphalt mixing station heating, in addition to the above two devices to be properly selected, it is necessary to take certain insulation measures.

Because for the asphalt mixing process, only by ensuring the normal operation of the heating system, the operation of the entire system can be guaranteed, and the necessary basis for subsequent production can be provided to meet the production requirements of the asphalt mixing plant.