Jincheng Company Limited, Shanxi Coal Transportation and Sales Group Shanxi Mingxinlong Coal Mine Machinery
and Equipment Company Limited

为了高效回收利用煤矿空压机在运行过程中产生的热能,针对原回收利用工艺存在的余热回收效率低与回收热源不稳定的问题,通过分析、比较各种解决方案,提出采用自动切换散热和余热回收系统,确保实现空压机和余热回收系统各自的正常运行;采用余热双蓄热系统实现余热的稳定利用;采用特殊合金材质的高效热交换器、2套二次热交换工艺设备、高效水软化设备和自动除水垢工艺保证余热高效回收;采用智能监控系统实现余热回收无人值守,达到减员提效。应用结果表明:通过技术改进的空压机余热回收利用系统运行稳定可靠,节能效益良好。

In order to high efficiently recover and utilize thermal energy occurred in an operation process of mine air compressor,according to the low afterheat recover y efficiency and recovery heat source unstable problem existed in the previous recovery and utilization technique,with an analysis and comparison on each solution plan,th e automatic switching heat radiation and afterheat recovery system was provided and applied to ensure and realize each normal operation of the air compressor and afterh eat recovery system. An afterheat double thermal storage system was applied to realize the afterheat to be stably uillized. The special alloy material applied to the high effi cient heat exchanger,two sets of secondary heat exchanging technique and equipment,high efficient water softening equipment and automatic descaling technique could en sure 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 oper ation and the energy saving benefit was remarkable.