Chapter 20. Investigation on the Structure and Control System of the Pre-Drying Zone of a Ceramic Roller Hearth Kiln

  1. John B. Wachtman Jr.
  1. Ling-Ke Zeng,
  2. Xuo-Su Cheng,
  3. Bi-Xuan Wen and
  4. Liang-Bing Zeng

Published Online: 26 MAR 2008

DOI: 10.1002/9780470313107.ch20

Ceramic Manufacturing Council - Kilns and Firing: Ceramic Engineering and Science Proceedings, Volume 11, Issue 11/12

Ceramic Manufacturing Council - Kilns and Firing: Ceramic Engineering and Science Proceedings, Volume 11, Issue 11/12

How to Cite

Zeng, L.-K., Cheng, X.-S., Wen, B.-X. and Zeng, L.-B. (1990) Investigation on the Structure and Control System of the Pre-Drying Zone of a Ceramic Roller Hearth Kiln, in Ceramic Manufacturing Council - Kilns and Firing: Ceramic Engineering and Science Proceedings, Volume 11, Issue 11/12 (ed J. B. Wachtman), John Wiley & Sons, Inc., Hoboken, NJ, USA. doi: 10.1002/9780470313107.ch20

Author Information

  1. South China University of Technology Guangzhou 510641 P.R. China

Publication History

  1. Published Online: 26 MAR 2008
  2. Published Print: 1 JAN 1990

ISBN Information

Print ISBN: 9780470374962

Online ISBN: 9780470313107

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Keywords:

  • oil-burning;
  • control system;
  • ceramic roller;
  • heat-transfer efficiency;
  • moisture

Summary

The oil-burning roller hearth kiln is quite different from the gas-burning kiln. In general, any burner cannot be designed in the preheating zone of a heavy-oil-burning roller hearth kiln to control the temperature and drying curve of preheating. For fast-firing and saving energy, however, a pre-drying zone can be designed in front of the preheating zone using the waste heat of the flue gas from the preheating zone to dry and preheat the ceramic bodies when the water content of the bodies becomes too high. The reasonable structure of a pre-drying zone and a simple computer-controlled system has been suggested by using a computer analog of gas flow and head transfer.