COAL ENGINEERING ›› 2016, Vol. 48 ›› Issue (8): 114-116.doi: 10.11799/ce201608034

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Experimental study on low-temperature drying characteristics of subbituminous coal

  

  • Received:2016-01-27 Revised:2016-04-22 Online:2016-08-10 Published:2016-08-19

Abstract: Taking Jinglong coal as the study object, the low-temperature drying experiment was carried out to investigate the effect of drying temperature on coal drying, re-absorption and crushing characteristics. The results show that, the low-temperature dry of 50~100℃ can make the most of its moisture evaporate at a rapid speed; besides, the higher the drying temperature, the faster evaporation rate and the lower the equilibrium moisture. After low-temperature drying, the re-absorption effect of pulverized coal is not good, but will be improved slightly with the increase of drying temperature; the average particle size of pulverized coal decreased slightly and shows no obvious relation with the drying temperature.

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