The Relation between the ignition Temperature and the Friability of coals

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  • 石炭の粉化性と着火温度との関係
  • セキタン ノ フンカセイ ト チャッカ オンド ト ノ カンケイ

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Abstract

The authers made an experiment about the relation between the ignition temperature and the friability of coals as expressed by the so called “Average particle size”.<BR>The results of this experiment are as follows:-<BR>1) When the coal is crushed by compressive load, the Rosin-Rammler's function is applicable to thedistribution of its products. Accordingly, we can calculate the “Average particle size” of the products.<BR>2) We can not recognize the fixed correlation between the ignition temperature and the friability of coals.<BR>3) Taking Joban coals as an example, the coals from different parts of the same coal-seam have not always a fixed correlation between the ignition temperature and the friability.

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