The development of the rotary kiln experienced a long period through the ropey difficult times; finally we meet the season of rapid development. At the same time it also bears witness to the process of China"s industrial development. The rotary kiln is capital equipment for calcining cement; the work process is less complex. Simply speaking, the raw material powder flows down from the high-end of cylinder body, at the same time, the tube is constantly rotating, so that the raw material can forge ahead with spiraling pattern, and the fuel is injected from the kiln head and burns in the stove. The raw material is heated in the process of work, and then appears a series of changes. The basic principle of work is very simple, but we must design the rotary kiln from the detail.The rotary kiln started later in China. At the beginning of our country, the rotary kiln is used in the protection to deal with the waste and rubbish. Along with the rapid development of industry, the rotary kiln began to use in the burning of the lime. Because of the low level technology and no related experience, the development of rotary kiln was slow. Then we did the some tests for the small rotary kiln, and introduced the foreign advanced technology, the system of our rotary kiln obtained the fast development.So we must slowly carry on the comprehensive improvement, for example, we can length the kiln shell, add the heat device in the cylinder increase and so on. Now the manufacturers of rotary kiln has the further the exploration for rotary kiln, such as the use of advanced hydraulic block wheel equipment, and high precision, high technical content of speed control valves and graphite piece of sealing equipment operation, which improved the running rate of equipment, has some advantages of convenient operation and maintenance. The production of socialization is conducive to the update and diversification of technology. It has great significance to our production.circumgyrate cement kiln:...