金属矿山可控循环风利用与节能

Utilization and Energy Saving of Controlled Recirculating Air Study on Metal mine

随着我国矿山开采深度的不断增加,矿井通风系统所需耗能更是不断增加。如何经济合理地向深部矿井送风,已是矿山深部开采所面临的重要问题之一。针对这种深部开采,采用可控循环风技术,可解决深部矿井的节能送风问题。以辽宁抚顺红透山矿为例,在回风气流有害气体净化实验成果基础上,在-287 m中段设置以水净化为主的循环风净化装置、有害气体监测监控装置,同时采取相应的密闭措施及安装远程操作电控风门,形成矿山的循环风可控利用。通过对红透山气流质量监测表明,混合入风的风流质量完全符合国家有关规定。根据循环风的掺混比例及矿山耗能的理论计算,红透山矿利用可控循环风后,最低可节约能耗32.1%。在冬季利用循环风对新入空气进行预热,也可防止冬季冻井并节能。

Along with the increase of mining depth, energy consumption on mine ventilation system is increasing. How to supply air to deep mine economically is one of the important issues faced by the underground deep mining. For this deep min- ing,the controlled reeirculating airflow technique was adopted to realize the energy-saving air supplement. Taking Fushun Hongtoushan Mine in Liaoning for instance, and based on purification experiment of harmful gas among air return, the air purifi- cation plant, the harmful gas monitoring device, and some sealing and electronically controlled throttle were set at -287 m level of Hongtoushan Mine to form controlled recirculating air. The airflow quality monitoring system in Hongtoushan showed that mixing airflow quality conformed to the relevant state regulations. And according to the theoretical calculation of recirculating air mixing proportion and energy consumption,energy consumption can be reduced by 32.1% in minimum with controlled re- circulating air system in Hongtoushan Iron Mine. In winter,this system can be used to preheat fresh entrant air to prevent shaft frozen and save energy.