A ceramsite sand production line with a production scale of 100,000t/d is expected to be put into operation in 2011.

1. Rotary kiln system

After drying, the raw meal pellets are discharged from the intermediate bin, and are lifted to the end of the kiln through a hoist. The vibrating screen divides the raw meal pellets into two types: qualified and unqualified. Qualified raw meal pellets enter the rotary kiln for calcination, and unqualified raw meal pellets return to the grinding system.

In the rotary kiln, the raw material particles gradually move toward the kiln head with the rotation of the rotary kiln, and are calcined into petroleum proppant ceramsite sand at the temperature of 1300℃~1350℃ in the firing zone. The ceramsite sand enters the single cylinder cooler for cooling, and the secondary air from the cooler enters the rotary kiln.

2. Granulation system

The granulation adopts a new type granulator developed by Zhengzhou Mining Machinery Company. The granulator has the characteristics of fast ball forming speed, high efficiency, good roundness and clean production.