废弃煤矿煤层气地面抽采及销毁系统设计  

Design of Surface Extraction and Destruction System for Coalbed Methane in Abandoned Coal Mine

作　　者：黄克海[1,2] HUANG Ke-hai(State Key Laboratory of Gas Disaster Monitoring and Emergency Technology,Chongqing 400037,China;China Coal Technology and Engineering Group Chongqing Research Institute,Chongqing 400039,China)

机构地区：[1]瓦斯灾害监控与应急技术国家重点实验室,重庆400037 [2]中国煤炭科工集团重庆研究院有限公司,重庆400039

出　　处：《化工管理》2023年第24期124-128,共5页Chemical Engineering Management

摘　　要：废弃矿井逐年增多,煤矿虽然停止生产,但甲烷释放并没完全停止,并通过多种途径释放到大气中,污染环境的同时还具有燃烧爆炸风险,因此设计了一种废弃煤矿煤层气地面抽采及销毁系统。文章首先介绍了系统构成,包括:抽采系统、火炬系统及监测监控系统;其次设计了针对高浓度煤层气抽采的干式罗茨泵+变频电机的可调流量式抽采系统;再者设计了地面火炬燃烧系统,燃烧火焰完全控制在防辐射隔热罩内,最大限度地减少热辐射、噪音对工作人员和周围设备的影响;最后设计了无线传输式监测监控系统。该系统基于现场总线及无线通信等技术,实现远程监测监控抽采系统及燃烧系统运行状态,对异常变化具有自动判识、报警并紧急处置功能,有效保障抽采煤层气安全销毁。Abandoned mines are increasing year by year.Although the production of coal mines has stopped,the methane release has not completely stopped,and it is released into the atmosphere through various ways,which not only pollute the environment but also have the risk of combustion and explosion.Therefore,a surface extraction and destruction system of abandoned coal mines is designed.This paper first introduces the system structure,including that pumping system,flare system and monitoring system.Secondly,the system of dry Roots pump+variable frequency motor for high concentration coalbed methane extraction with adjustable flow is designed.In addition,the ground torch burning system is designed,and the burning flame is completely controlled in the radiation-proof heat shield,which minimizes the influence of heat radiation and noise on the staff and surrounding equipment.Finally,the wireless transmission monitoring system is designed.Based on fieldbus and wireless communication technology,the system can realize remote monitoring and monitoring of the operation status of the pumping system and the combustion system,and has automatic identification,alarm and emergency disposal functions for abnormal changes,effectively guaranteeing the safe destruction of extracted coalbed methane.

关 键 词：废弃煤矿 地面抽采 销毁 无线传输 火炬燃烧 

分 类 号：TD712[矿业工程—矿井通风与安全] TP273[自动化与计算机技术—检测技术与自动化装置]