煤矿安全2017，Vol.48Issue(10)：128-131,4.DOI:10.13347/j.cnki.mkaq.2017.10.035
易自燃厚煤层综放工作面采空区自燃“三带”划分实践
Partition of Spontaneous Combustion Three-zone in Goaf of Fully-mechanized Caving Face in Easy Self-ignition and Thick Seam
李东发 1臧燕杰 1宋双林 2师吉林 2赵亚明2
作者信息
- 1. 神华国能集团沙吉海煤矿,新疆塔城834700
- 2. 煤科集团沈阳研究院有限公司,辽宁抚顺113122
- 折叠
摘要
Abstract
We proposed combined oxygen concentration method and temperature method to divide spontaneous combustion three-zone in goaf under the condition of continuous nitrogen injection,used Fluent software to simulate spontaneous combustion three-zone without nitrogen injection.On this basis,we concluded that the minimum safety advancing speed that restrained goaf spontaneous combustion.The results showed that the clear distribution of goaf spontaneous combustion three-zone can reduce the blindness of fire prevention and control work.Goaf spontaneous combustion three-zone scope based on numerical simulation can evaluate nitrogen injection effect in a certain extent.To speed up spontaneous combustion with forward speed and reduce its width is an important mean of preventing coal spontaneous combustion.关键词
自燃“三带”/氧气浓度/温度/注氮/安全推进速度Key words
spontaneous combustion three zones/oxygen concentration/temperature/nitrogen injection/safe mining speed分类
矿业与冶金引用本文复制引用
李东发,臧燕杰,宋双林,师吉林,赵亚明..易自燃厚煤层综放工作面采空区自燃“三带”划分实践[J].煤矿安全,2017,48(10):128-131,4.
