Heating machine and a rotary kiln ventilation determine the following: 1, the size of the ventilation resistance is mainly determined by the negative pressure, if the ventilation resistance, poor ventilation, the heating unit decrease the negative pressure chamber, and the chamber under negative pressure to rise. Chamber under negative pressure greater the value, the greater the resistance ventilation, heating machine ventilation is not good, the more bad kiln ventilation, incomplete combustion, the flame is short and low temperature kiln firing is not normal. 2, when the heating chamber vacuum machine each rose, each chamber under negative pressure drop, which is good ventilation performance. A room temperature rises, two-compartment temperature drops, this is a good heat exchange heating machine, pellet burn good performance. If the chamber, the chamber under negative pressure difference is small, and the exhaust gas temperature is higher heating machine, which shows there has been heated inside air leakage. 3, when the top and bottom of each chamber vacuum heating machine are low, and the temperature is low, but the exhaust fan current, short kiln flame, burning is not normal, indicating that heating machine external leakage. 4, when one, two-compartment temperature drops or black smoke exhaust chimney, kiln flame out, there may be kiln kiln ring formation or blockage, when the kiln ventilation, incomplete combustion of coal, the flame temperature is low , the exhaust gas temperature is low, the heating temperature becomes high. If a significant increase of the temperature chamber, kiln flame shape change, thus causing the kiln burning is not normal. At this processing method is: Check kiln unloading downpipe channel without clogging, if clogged promptly. Increase in the negative compartment, the other chamber negative pressure is normal, the compartment temperature falls, indicating that clogging is inclined flue. The above article by Henan YuFeng Heavy Machinery  finishing release, reproduced, please indicate the source!