Example of Drive Load Reduction by Forming Fabric

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  • Furutaka Kei
    Technical Dept. PMC・EF In-House Company Nippon Filcon Co., Ltd

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  • 抄紙ワイヤーによる駆動負荷低減事例
  • ショウシ ワイヤー ニ ヨル クドウ フカ テイゲン ジレイ

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Abstract

<p>A forming fabric is an integral component in the forming section of a paper machine. It has 3 functions：① dewatering；② formation；and ③ carry. The emphasis is on formation which directly affects paper quality. Paper grades can differ widely in weight from low to high gsm. Forming fabric performance must also meet requirements for dewatering and carry, which influence production grades.</p><p>The paper industry constantly seeks high-quality paper and increased productivity. Modern paper machines have been developed to accommodate much greater widths and run at higher speeds. Following demands of paper makers, forming fabrics have been developed to keep up with changing trends in paper manufacturing.</p><p>The world shares the common goal of developing a more balanced society with respect to economy and the environment, which is exemplified by the Paris Agreement to reduce greenhouse gas emission and Sustainable Development Goals （SDGs）．The Energy Conservation Law in Japan is composed of standards that guide industry and society to supply energy with lower carbon emission along with energy savings.</p><p>Power generation in Japan is still partially dependent on burning fossil fuels, which emits significant CO2. We need to move to power generation sources which emit less CO2. Many paper mills have privately-owned electrical power facility because the paper industry consumes a great amount of electricity. Cogeneration systems have been developed utilizing medium and low pressure steam. By investing in fuel source change and energy saving, the Japanese paper industry’s privately-owned power facilities emit less CO2.</p><p>Forming fabrics have already successfully reduced drive load. The Forming unit of a paper machine can consume up to a hundred million Japanese yen per month in electricity costs. Drive load reduction can have a positive impact on energy savings. In the past, forming fabrics designs achieved reduced drive load at the expense of fabric lifetime. Now, the latest fabric designs are able to reduce drive load without sacrificing fabric lifetime. This is a significant breakthrough in forming fabric technology and performance. Here we describe actual results of drive load reduction achieved by our new and improved forming fabric.</p>

Journal

  • JAPAN TAPPI JOURNAL

    JAPAN TAPPI JOURNAL 75 (6), 522-526, 2021

    JAPAN TECHNICAL ASSOCIATION OF THE PULP AND PAPER INDUSTRY

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