Rotary speed is relatively low, coupled with serious air leakage, resulting in low vacuum kiln, kiln temperature regenerator temperature rises and causes the rotary kiln can not work properly. This time, if it is to maintain the original speed, the amount of limestone into the furnace is not adjusted accordingly, material flow does not change the thickness, material flow permeability will not improve, the vicious circle is formed. Therefore, in order to change this passive operating state, the only way is to improve the speed of lime kiln, and also while maintaining the amount of ore into the furnace and grate speed constant. In the actual production of lime kiln found for discharging a blast coal is very low, can not be injected into the complete combustion of coal, resulting in shorter flame shape rotary kiln, a long black attempting unburned pulverized coal and ash fall high temperature zone, likely to cause ring formation. Therefore, we must increase the kiln once blast volume, but because of the blower replaced once the funds needed very much, the dried coal field in series to a hot air blast pipe,Hammer crusher is conducive to coal combustion and changing the shape of the flame , prompting Kiln ring cycles. The speed is increased after lime kiln, rotary kiln will be able to make the material flow thinning, but also will improve permeability, material flow of the radiation area will get the necessary increase will speed up the decomposition of carbonates . In addition, the charge in the rotary kiln residence time will be reduced, the calcination temperature will be reduced, and begat the phenomenon of burning or burnt will be controlled and ring phenomenon will be reduced accordingly. The above article by Henan YuFeng Heavy Machinery finishing post! Please indicate the source!