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《Coal Science and Technology》 2015-01
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High efficient recovery technology and application of afterheat from mine air compressor

WANG Chun;XIAO Yong-hong;ZHANG Yan-ming;Jincheng Company Limited,Shanxi Coal Transportation and Sales Group;Shanxi Mingxinlong Coal Mine Machinery and Equipment Company Limited;  
In order to high efficiently recover and utilize thermal energy occurred in an operation process of mine air compressor,according to the low afterheat recovery efficiency and recovery heat source unstable problem existed in the previous recovery and utilization technique,with an analysis and comparison on each solution plan,the automatic switching heat radiation and afterheat recovery system was provided and applied to ensure and realize each normal operation of the air compressor and afterheat recovery system. An afterheat double thermal storage system was applied to realize the afterheat to be stably utilized. The special alloy material applied to the high efficient heat exchanger,two sets of secondary heat exchanging technique and equipment,high efficient water softening equipment and automatic descaling technique could ensure the high efficient recovery of the afterheat. An intelligent monitoring and control system was applied to realize an unattended recovery of the afterheat. The application results showed that with the technical improvement conducted,the afterheat recovery and utilization system of the mine air compressor could be stable and reliable in operation and the energy saving benefit was remarkable.
【CateGory Index】: TD443
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