Rotary kiln during calcination, different manufacturers, different kiln workers, in the course of operating the kiln there are some differences, but they have a consensus that good material can be burned. In fact, the purpose of calcined Barbara, too, if we can burn out what else to say other good material. Calcining the material in the rotary kiln process, there are three common methods: first, to maintain constant speed of the kiln, the amount of change of the fuel to prevent the burning zone temperature change; second, to maintain the same amount of fuel, the kiln speed change burning zone temperature is maintained at the required level; Third, changes in kiln speed and fuel consumption, to maintain the required temperature burning zone. These three methods above have a common feature, are very focused burning zone temperature. Because the reason is that such an operation, the material quality is good or bad, depends critically on the temperature calcining zone. In fact, this understanding a bit wrong, because there is no achieve faster and more economical results. In fact, a reasonable approach is to calcination: take the focus away from the firing zone, distributed to the various belt kiln. Calcined material process, but also the entire kiln control process, first of all should be concerned about drying and decomposition of the material, and then to the firing zone, that the process should be started from the material into the rotary kiln, rather than the so-called material to burning zone begins. Please indicate Henan YuFeng Heavy Machinery