ZHU Chuan1;2;YANG Xiao-yu1;

• 1:SHAO Xun1
• 2:2(1.Beijing Research Institute of Coal Chemistry
• 3:China Coal Research Institute
• 4:Beijing 100013

Abstract：

Introduce the techniques for low rank coal evaporation drying,such as rotary drying,fluid bed drying,entrained-flow drying.Meanwhile,study some non-evaporation dewatering technologies,including thermal dehydration,mechanical dewatering and UBC low rank coal upgrading technology.Emphasize the technological processes,technical features and status of these two kinds of dewatering technologies.Analyse the selection principle and basis for drying process,drying medium,factory location and energy consumption during the construction of low rank coal drying system.The results show that,the selection of drying system should consider the users requirement,the moisture of upgraded coal,security,energy consumption and the cost.The location of factory is crucial,the selection of drying medium should think ahead the cost and safety.The lower energy consumption guarantee the longer running of drying process and its economic benefits.

Key Words： low rank coal;dehydration;evaporation dewatering;non-evaporation dewatering;energy efficiency

Abstract:

Keywords:

Foundation: 国家科技支撑计划资助项目(2012BAA04B01)

Authors: ZHU Chuan1;2;YANG Xiao-yu1;

DOI: 10.13226/j.issn.1006-6772.2013.01.016

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