Research On Optimizing Control Strategy Of Building Material Production Process

Building materials industry is the dominant industry of our country, is crucial to the development of China’s national economy. In building materials in the cement and is one of the indispensable. As a typical sample of process industry, the cement production process is highly complex, with strong heterogeneity and correlation characteristics. Its production process is a multi variable coupled, time-varying, nonlinear and large time lag process, heat transfer and mass transfer and physicochemical complex economic backwardness, and the production process is affected by raw material, chemical composition, Loudi kiln skin loose and free material larger interference. These factors will cause the instability of production process. The use of conventional control strategy, it is difficult to receive the outstanding effect in the cement production process. In this paper, the control strategy based on the cement industry perspective, to new dry cement production process as the research sample, conducts the thorough research to the control strategy and optimization measures of cement production process.The main task of this paper are the following. First to the present model of production process of cement production theoretically introduce and comb, comb and on the current status of domestic cement production. The second key point for cement production process some changeable condition and control in the process of analysis, detailed rules, discussed the influence on the relationship between process parameters and variables, and leads to the limitations of the conventional control strategy. Third according to the characteristics of nonlinear grinding process and material of strong interference of the production process, the establishment of system control model, based on the operating point of distinction, flour mill for steady state operation set, avoid empty and full grinding grinding phenomenon. Through the simulation, find out the optimal load point, improve production efficiency. Fourth the analysis of the dynamic characteristics of the rotary kiln, the launch of combination control as control strategy the core. To realize the optimization of export of flue gas containing oxygen index. The final reducing coal consumption and improve production efficiency.t.