The Composition Of Asphalt Mixing Plant
1. Cold aggregate storage system
Asphalt mixing plant is in accordance with the standard of road design. All kinds of cold aggregate pile up respectively which will be transported to storage bin corresponding to the cold aggregate storage system.
2. Sieving mixing system
The hot aggregate heated by drying drum will be hoisted to the hot aggregate screen which lies in the uppermost part of sieving mixing system. The hot aggregate will be divided into different specifications, then it will be stored to the bin corresponding to hot aggregate bin. The aggregate with large specification and the aggregate which is overflowed due to the hot aggregate bin is full will be stored in spilth bin.
3. Drying and heating system
The heat of drying aggregate is provided by the burner. There is a special hoisting blade in the drying drum. With the rotating of the drum, aggregates is hoisted and thrown off repeatedly. Then, the aggregates will form into the aggregate curtain and move forward by virtue of the angle of the drum in which the heat will be exchanged with high temperature flame airflow. The hot aggregate which has been heated well will be hoisted by the hoist. The dusty gas produced in the process of aggregate drying will be sucked out by the induced draft fan.
4. Cold aggregate supply system
Asphalt mixing plant needs five basic hoppers. There is a belt feeder in each hopper, which integrates the loading and feeding.
