低浓度瓦斯氧化技术在井下制冷系统中的应用研究  

Application of low concentration coal mine methane(CMM) oxidization technology in coal refrigeration system

作　　者：高鹏飞[1,2] 

机构地区：[1]中煤科工集团重庆研究院有限公司,重庆400037 [2]瓦斯灾害监控与应急技术国家重点实验室,重庆400037

出　　处：《能源与环保》2017年第4期108-112,共5页CHINA ENERGY AND ENVIRONMENTAL PROTECTION

基　　金：国家科技重大专项(2016ZX05043005-004);国家科技重大专项(2016ZX05045006)

摘　　要：针对煤矿低浓度瓦斯排放量大、利用率低及煤矿的井下制冷需求的问题,提出一种瓦斯蓄热氧化后热量为溴化锂制冷机组提供余热蒸汽的工艺,在有效解决低浓度瓦斯利用难题的同时,也为制冷机组提供稳定的热源输出。进行包括低浓度瓦斯输送安全保障系统、瓦斯蓄热氧化系统、余热利用系统在内的氧化热量供给制冷机组蒸汽的集成工艺设计,设计处理瓦斯浓度为1.2%,标态流量为10万m^3/h,可输出7 537 k W的蒸汽热量。分析了项目建成后运行的预期效果,并论证了项目的经济性。瓦斯蓄热氧化供给井下制冷用蒸汽的工艺技术,通过销毁处理甲烷,并将热量输出供给井下制冷,具有节能减排、提高煤矿区煤层气利用效率、促进煤矿安全生产的多重意义。Aiming at dealing with the low concentration CMM and offering heat load of the mine underground cooling system,put forward a kind of steam production method by regenerative oxidation of CMM for refrigerating unit,effectively solving the low concentration CMM utilization problems and providing stable steam output for refrigerating machine. The total integrated process was designed,which includes CMM transportation security system,regenerative oxidation system,waste heat utilization system and so on. The dealing concentration of oxidation device is 1. 2%,which permits a flow rate of 100 000 m-3/h（ 0 ℃,1 atmosphere）,with the steam heat capacity of 7537 k W. The operation effect of the project was analyzed,and the profitability of the project was demonstrated. The process technology of oxidation heat supplying underground refrigeration,destructing methane,and transmitting steam to underground refrigeration,has the meaning of energy saving and emission reduction,improving the utilization efficiency of coal bed methane in coal mine,and promoting the safety production of coal mine.

关 键 词：低浓度瓦斯 蓄热氧化技术 温室气体 煤层气利用 制冷系统 

分 类 号：TD712.67[矿业工程—矿井通风与安全]