Calcining kiln during operation is an important procedure, the aim is to exclude the calcined material in the water and volatile matter, increased density of the carbonaceous material and mechanical strength. Kiln operation process to achieve the best state there are many ways, the main analysis of control variables on the important role of the rotary kiln operation by changing the value of the control variable rotary kiln operating parameters studied. Impact rotary kiln operation and calcined coke quality variables included: three air flow rate; secondary air flow rate; once wind flow velocity; fuel flow rate; rotary speed; raw petroleum coke feed rate; along the axial and rotary kiln chimney airflow; green petroleum coke in nature. These variables are only three times in the actual air flow rate of production, raw petroleum coke, rotary speed and feed rate are determined for the control variables, and other variables on the quality calcined petroleum coke has little effect, but also easy and flexible control, so that the control variable is uncertain. Although the nature of raw materials calcined petroleum coke quality greatly, but as a need to understand the parameters are very important. The above article by Henan   finishing post.