清水灌注抑制易燃采空区遗煤氧化及自燃的机理研究与应用

Study on the mechanism and application of fresh water pouring for prevention of oxidation and spontaneous combustion of residual coal in goaf

通过对灌注清水抑制易燃采空区遗煤氧化及自燃的机理分析与现场应用研究实际效果 ,提出了一种新的、简便廉价的防治采空区遗煤自燃的技术措施 .同时 ,对传统的黄泥灌浆技术措施中的泥浆浓度要求提出了新的不同看法 .即认为无论泥浆浓度如何 ,只要能确保适时充足的灌注量 ,即便是清水 。

Based on the theory of thermodynamics and combustion and the study of the mechanism and application effectiveness of water-pouring method for prevention of oxidation and spontaneous combustion of residual coal in goaf, the author proposed a new and efficient technical measure for checking the spontaneous combustion in goaf. At the same time, the author gave a different opinion on the prescription of grouting density. The opinion is that if timely and enough pouring is ensured, the capability of preventing of spontaneous combustion in goaf can still exert whatever the density may be, even for fresh water.