Kiln hood sealing problem for such large-scale rotary kiln must be paid attention to.  Adjusting the kiln hood must follow certain way and also meet the operating conditions.  Henan Zhengzhou Mining Machinery Co., Ltd. introduces you about adjusting the rotary kiln hood to meet four conditions in detail. Regulating kiln hood pressure is designed to prevent the intrusion of cold air and hot air and dust overflow. Adjusting the pressure is by adjusting the kiln hood temperature fan, blower and grate cooler grate cooler exhaust fan to complete, which is mainly to regulate the grate cooler exhaust fan.

At the time of adjusting the kiln hood, should meet four requirements. 1, Inlet smoke chamber gases O2content within the scope of the normal (1-2%); 2, the clinker in the grate bed can get enough good cooling; 3, ensure the plate temperature of grate cooler not too high; 4, adjust the kiln hood is in the tiny negative pressure state, namely - 20-5 pa.

In case of certain blast volume, adjusting the pressure of kiln hood should avoid high temperature fan and exhaust and fan to tugging wind, this will cause the system power consumption to increase, and it is also not conducive to the control of production at the same time.