负压通风方式下立井井筒防冻技术研究
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摘要
针对泊江海子矿基建期间冬季井筒安装时的安全问题,分析了井筒结冰的原因和井筒结冰对通风系统的影响,研究了低温环境下井筒安装时的施工措施及工艺流程,并结合唐家会矿、色连二矿的井筒安装条件总结出了一套完整的井筒防冻应对措施。实践表明:通过机械通风、封闭、供暖、控风等措施,可以克服低温天气及自然风压对立井井筒施工的影响,保障井筒在冬季的安全施工,大幅度缩短建井工期,为矿井带来巨大的安全和经济效益。
In order to further study the causes of shaft icing and analyze the effect of wellhead freezing on the ventilation system,it is prevented from causing harm to the safe production of coal mine. We discussed the safety problems of shaft coal mine installation during the foundation construction and the construction measures and technological processes to be paid attention to when installing the shaft in low temperature environment. The results show that the influence of low temperature weather and natural wind pressure on the shaft construction of the shaft can be overcome by mechanical ventilation,closing,heating and wind control,so as to ensure the safe construction of the shaft in winter and greatly reduce the construction period and bring great security and economic benefits. In this paper, we expound the safety question in low temperature of the shaft in Bojianghaizi Mine when it was in the basic construction and analysis from the application effect according to the Tangjiahui Mine and Selian Mine. Then we expound the reason and the effect to the ventilating system of the shaft freeze, last we put forward the measures. It has been proved that using mechanical ventilation,close,heating and control the blast capacity can overcome the effect of natural wind pressure to the vertical shaft in the low temperature in order to guarantee the safety construction and cut down the construction time,in this way it can brings enormous safety and economic benefit.
In order to further study the causes of shaft icing and analyze the effect of wellhead freezing on the ventilation system,it is prevented from causing harm to the safe production of coal mine. We discussed the safety problems of shaft coal mine installation during the foundation construction and the construction measures and technological processes to be paid attention to when installing the shaft in low temperature environment. The results show that the influence of low temperature weather and natural wind pressure on the shaft construction of the shaft can be overcome by mechanical ventilation,closing,heating and wind control,so as to ensure the safe construction of the shaft in winter and greatly reduce the construction period and bring great security and economic benefits. In this paper, we expound the safety question in low temperature of the shaft in Bojianghaizi Mine when it was in the basic construction and analysis from the application effect according to the Tangjiahui Mine and Selian Mine. Then we expound the reason and the effect to the ventilating system of the shaft freeze, last we put forward the measures. It has been proved that using mechanical ventilation,close,heating and control the blast capacity can overcome the effect of natural wind pressure to the vertical shaft in the low temperature in order to guarantee the safety construction and cut down the construction time,in this way it can brings enormous safety and economic benefit.
引文
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[3]高虹宇,宋进国.煤矿井筒防冻方式的比较[J].煤炭工程,2004,36(4):13-14.
[4]戴启,汪永茂.自然风压对矿井通风系统的影响及治理[J].矿业安全与环保,1999(4):41-42.
[5]苏伟,焦春玲.井筒防冻设计体会[J].煤炭工程,2017,49(6):6-8,12.
[6]王艳,王新伟.红柳煤矿二号井井筒防冻设计方案研究[J].煤炭工程,2017,49(3):29-31.
[7]于广鹏,邸冬.负压通风方式多井筒防冻措施[J].有色金属(矿山部分),2013,65(6):91-94.
[8]闵彦.井筒防冻采用热风炉的优越性[J].煤炭工程,2005,37(2):19-20.
[9]张国枢.通风安全学[M].徐州:中国矿业大学出版社,2000.
[10]国家安全生产监督管理总局,国家煤矿安全监察局.煤矿安全规程[M].北京:中国法制出版社,2016.