Computer Based Advanced Control System for Recovery Boiler

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Other Title
  • 回収ボイラーのコンピュータ制御
  • カイシュウ ボイラー ノ コンピューター セイギョ ニ ツイテ

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Abstract

This paper prerents the results achieved through advanced computer control applied to a Recovery boiler. The original objectives of the control project were to reduce costs associated with boiler operation, increase pulp mill capacity by increasing black liquor throughput and enhance the safe operation of the process. To achieve these project objectives a Measurex computer control system was installed on the boiler.<BR>Included in the Measurex system was a flue gas analyser (for in-stack measurement of CO, CO2 SO2 and opacity) and the following controls:<BR>CO-based combustion control<BR>Reduction zone temperature maximization control<BR>Droplet size control<BR>Sootblowing control<BR>Blackout detection control<BR>Tie line control<BR>Load allocation control<BR>The control project has been judged to be most successful, producing process improvements and return on investment greater than those originally expected.

Journal

  • JAPAN TAPPI JOURNAL

    JAPAN TAPPI JOURNAL 38 (7), 726-732, 1984

    JAPAN TECHNICAL ASSOCIATION OF THE PULP AND PAPER INDUSTRY

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