The Temperature Field Digitization of Radiation Images in Blast Furnace Raceway

• Zhang Shengfu

  Laboratory of Materials and Metallurgy, College of Materials Science and Engineering, Chongqing University

• Wen Liangying

  Laboratory of Materials and Metallurgy, College of Materials Science and Engineering, Chongqing University

• Bai Chenguang

  Department of Human Resource, Chongqing University

• Chen Dengfu

  Laboratory of Materials and Metallurgy, College of Materials Science and Engineering, Chongqing University

• Ouyang Qi

  Laboratory of Materials and Metallurgy, College of Materials Science and Engineering, Chongqing University

Abstract

This article applies digital image processing techniques to the research for the algorithm of peep-temperature-field of flame image. Embarking on the factors which produce errors, the traditional bicolorimetric temperature measurement method is obtained proofreading. Then this algorithm is applied to the research on establishment of the temperature fields for gas combustion flame image in the small experiment table as well as radiative image in blast furnace raceway in some steel corporation. By the laboratory research we obtain that coefficient of correction equals to 33.4 and error value between the measured temperature and calculated temperature is in the scope of 5.0%. The result shows that the temperature fields of gas combustion flame image and those of radiative image in raceway reflect accurately the actual temperatures respectively as well as a series of changes for flame temperature information caused by varying working conditions. Therefore, it lays foundations for furnace operators to provide visualized image information and accurate temperature information.

Journal

• ISIJ International

  ISIJ International 46 (10), 1410-1415, 2006

  The Iron and Steel Institute of Japan

Keywords

• blast furnace
• raceway
• flame image
• digital image processing
• CCD
• temperature field

Details

• CRID: 1390282681466163072
• NII Article ID: 10018426005
• NII Book ID: AA10680712
• DOI: 10.2355/isijinternational.46.1410
• ISSN: 13475460
• ISSN: 09151559
• Web Site: http://www.jstage.jst.go.jp/article/isijinternational/46/10/46_10_1410/_pdf
• Text Lang: en
• Data Source:
  • JaLC
  • Crossref
  • CiNii Articles
• Abstract License Flag: Disallowed