Rotary kiln with high temperature, low temperature kiln performance: black attempting short, too short flame, flames, kiln leather and material temperatures are high, bright white light throughout the firing zone. Raw material from the shadows near the kiln, clinker coarse granularity, the kiln wall was brought up high, high and heavy liters of free lime is also high. Kiln temperature is low, wet kiln temperature of the material out of the chain with a low moisture big. Reasons for this phenomenon: coal is good, such as less ash, fine grain size, less moisture, once strong winds and high air temperature or wind-mixed coal, pulverized coal combustion speed, heat concentrated, so burning zone temperature quickly improved. Small exhaust flame pull long section focuses on the flame temperature. There kiln kiln knot ring or thick skin effect ventilation, so that the flame is short, kiln temperature is reduced. With a high temperature kiln firing low temperature approach: open large exhaust, elongated flame, raise tail temperature to normal temperature. Appropriate reduction of coal, off a small primary air, adjust the angle of the wind wings, weakening wind coal mixed with pulverized coal combustion to slow down the speed and reduce the burning zone temperature. The coal feeding nozzle extends to the kiln, changing a mixture of secondary air and pulverized coal extent, slow down the speed of pulverized coal combustion, elongated flame temperature increase tail. The above article by Henan YuFeng Heavy Machinery (http://www.yufchina.com) finishing release, reproduced, please indicate the source!