Operating Experience of Headbox with Dilution Control System

DOI Web Site

Bibliographic Information

Other Title
  • 濃度調整型ヘッドボックスの操業経験
  • ノウド チョウセイガタ ヘッドボックス ノ ソウギョウ ケイケン

Search this article

Abstract

In 1985, a 5-layer Highspeed Ultra Former was introduced to PM 5 in Saga Mill of Oji Paperboard Co., Ltd. Along with the speed-up of the machine, the flow rate through the headboxes increased and exceeded the design rate, resulting in bad BD profiles and exposure of the ridge problems (oil drum-like wrinkles) . To solve them, the headboxes have been replaced systematically since 1997 and a micro-rod BD profiling system was brought in 2002. Then, we installed a Dilution Control System as a final stage.<BR>The installation of the Dilution Control System has provided the improvement of the BD and caliper profile by up to 48% and 25%, respectively. In addition, the down-time for grade change and start-up has been cut by 2.4 minute and 3.8minute on an average, respectively.<BR>The outline, the operating experience, and the advantage of the headboxes with the Dilution Control System introduced to the PM 5 are summarized in this report.

Journal

  • JAPAN TAPPI JOURNAL

    JAPAN TAPPI JOURNAL 60 (8), 1129-1132, 2006

    JAPAN TECHNICAL ASSOCIATION OF THE PULP AND PAPER INDUSTRY

Keywords

Details 詳細情報について

Report a problem

Back to top