Advertisement

Statistical Control of Cement Process

  • Yoshitaka Yagihara
Part of the Statistics for Engineering and Physical Science book series (ISS)

Abstract

One of the most important processes in a cement plant is a kiln process. The kiln process is a multiple input and output system having many internal noise sources and internal feedback loops, and the process is, viewing from the physical characteristics, a distributed parameter system which has an extension of the behavior over space and time. Its model is given by the partial differential equations concerning the gas temperature T G and solid temperature T M derived from the heat balance and material balance in the kiln. At the initial stage of the development (1962) when the first computer for process control was installed to Kumagaya Plant of Chichibu Cement Co. Ltd., this mathematical model was used for control. However the mathematical model was in reality not satisfactory enough to be used as the model for stabilizing control because of the fact that none of noise sources existing in the actual process were considered.

Keywords

Rotary Kiln Cement Plant Manipulate Variable Steady State Gain White Noise Vector 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  1. Akaike, H. and T. Nakagawa (1972), Statistical analysis and control of dynamic systems, Saiensu-sha (in Japanese). (English translation was published from Kluwer Academic Publishers in 1988.)Google Scholar
  2. Otomo, T., Nakagawa, T. and Akaike, H. (1969), “Implementation of computer control of a cement rotary kiln through data analysis,” Technical Session 66, IFAC 4th World Congress, Warsaw, 115–140.Google Scholar
  3. Otomo, T., Nakagawa, T. and Akaike, H. (1972), “Statistical approach to computer control of cement rotary kilns,” Automatica, Vol. 8, 35–48.CrossRefGoogle Scholar
  4. Hagimura, S., Saitoh, T., Yagihara, Y. and Kominami, T. (1986), “The hierarchical control with stability and production level control of cement NSPkilns,” IFAC 5th MMM Congress, Tokyo, 77–78.Google Scholar
  5. Hagimura, S., Saitoh, T. and Yagihara, Y. (1988), “Application of time series analysis and modern control theory to the cement plant,” Annals of the Institute of Statistical Mathematics, Vol. 40, No. 3, 419–438.CrossRefGoogle Scholar
  6. Jury, E. I. (1958), Sampled-data control systems, John Wiley & Sons Inc., 30–31MATHGoogle Scholar
  7. Nakagawa, T. and Y. Nakagawa (1986), “The approach to the design of optimum production level and control”, J. SICE (in Japanese), Vol. 24, 77–83.Google Scholar

Copyright information

© Springer-Verlag New York, Inc. 1999

Authors and Affiliations

  • Yoshitaka Yagihara
    • 1
  1. 1.System Sogo Kaihatsu Co. Ltd.TokyoJapan

Personalised recommendations