How to improve the heat efficiency of rotary kiln is the long term purpose of many researchers.
The short limestone rotary kiln with hanging pre-heater is finally produced after decades of hard working of technical workers.
The hanging pre-heater is a heat transferring equipment, and its characteristics is that dry raw materials have heat transmission with hot air in the rotary kiln in the hanging state.
Because the granularity of the raw materials is small, so heat can be transmitted to the center immediately.
According to the temperature testing existent problem, put forward based on the genetic algorithm to optimize the BP neural network of rotary kiln temperature prediction model.
Then using genetic optimize the BP neural network to handle ending data training simulation, the simulation results show that the genetic optimize the BP neural network temperature prediction model for prediction of the temperature in the rotary kiln, which can get better prediction accuracy.
Finally, according to the rotary kiln delay and the characteristics of the many interference factors, the method of rotary kiln is proposed which based on fuzzy PID control temperature control.
According to the characteristics of clinker rotary kiln design the structure of the fuzzy PID controller and a simulation study, the simulation results show that the fuzzy PID control method than the traditional PID control method of adaptability, can achieve better control effect.
On the developing process of cement production, different producing ways and different kinds of rotary kilns are developed.
In the aspect of environmental protection, the developed countries around the world have used cement rotary kiln to calcine dangerous waste and rubbish for more than twenty years, which treats the waste as fuel to decrease the amount of rubbish and achieve the recycle of resources.
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