微粉炭の回収・脱水

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書誌事項

タイトル別名
  • Recovering and Dewatering of Fine Coal
  • ビフンタン ノ カイシュウ ダッスイ

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抄録

The amounts of fine coal included in the raw coal to be washed have been, increased by reason of the adoption of mechanical coal mining method in Japan. On the one hand the demands of fine coal have been increased rapidly in the cause of the increase of the electrical power station used the low-grade coal. Therefore, it is the important problem that fine coal is recovered effectively in the coal preparation plant.<BR>The various equipments to be.treated fine coal are classified by their use as follows:(1) separator (flotator and washing table), (2) thickener and classifier (boot of bucket elevator, Bacher tank, settling cone, thickener, wet cyclone and settling tank)(3) dewatering machine (fixed screen, vibrating screen, filter and centrifuge), (4) settling pond.<BR>Many systems of the treatment of fine coal consist of the simple or complicated combination of the aforementioned equipments in the coal preparation plant, but the character of modern system of the treatment of fine coal includes one of the following equipments, that is, flotator, thickener, filter and centrifuge.<BR>Both of flotation and centrifuge have been developed remarkably and adopted in our country. In this paper, therfore, the domestic status of flotation are described, on the one hand the various centrifuges are classified by their constructions and their characteristics are explained respectively.

収録刊行物

  • 日本鑛業會誌

    日本鑛業會誌 77 (879), 665-670, 1961

    一般社団法人 資源・素材学会

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