In view of the following situations as when the grate cooler push lever hydraulic does reciprocate motion on grate bed,the pressure fluctuation is large and it is not easy for the operator to determine. The phenomena as snowman pushing,too much noncooled red materials and insufficient combustion of pulverized coal appear when the incoming materials are uneven,grate cooler fan outlet pressure optimization control is done by using advanced control systems,and one outlet pressure of the grate cooler is used as an important reference parameters of rotary kiln operation so as to solve such problems as highly nonlinear,strong coupling,time-varying uncertainty in the practical control process of the grate cooler. By optimizing the control and stability of grate pressure,the material thickness achieves stability and the secondary and tertiary air temperature and volume are stable too,which can stabilize the kiln conditions,reduce the clinker heat consumption,improve clinker cooling,improve the waste heat power generation. So the optimization scheme not only reduces the feed coal with different degree,saves energy,but also avoids the happening of the red material,snowman pushing,and so on and so forth indirectly,lengthens the service life of equipment and production in saving energy consumption solves the old problem of inaccurate control,which can realize the automatic control of the equipment,achieve environmental protection and economy win-win.
Journal of Huangshi Institute of Technology