煤矿安全2018，Vol.49Issue(3)：24-28,5.DOI:10.13347/j.cnki.mkaq.2018.03.007
复合防灭火喷涂封堵材料特性研究
Study on Characteristics of Composite Fire Extinguishing Spray Sealing Material
赵文彬 1董清府 1薄福利 2李振武 3王均双 4杨春辉1
作者信息
- 1. 山东科技大学矿业与安全工程学院,山东青岛266590
- 2. 济宁矿业集团有限公司阳城煤电,山东济宁272502
- 3. 济宁矿业集团有限公司运河煤矿,山东济宁272000
- 4. 济宁矿业集团有限公司安居煤矿,山东济宁272119
- 折叠
摘要
Abstract
In order to solve the problem of spontaneous combustion of coal seam caused by air leakage in goaf,a new type of composite fire extinguishing and spraying sealing material based on pneumatic spraying technology and inorganic material is developed in this paper.The research shows that when the water cement ratio is 0.7:1 and the compound admixture is 2％ of the composite spraying sealing material,the initial setting time is 15.8 min;at 5 min,the viscosity of the spray slurry is 14.745 1 Pa· s;and the material pedormance is excellent.The infrared spectrum analysis shows that the composite additive helps to improve the material properties of inorganic materials.The material has high strength at early stage and stable strength at later stage,compressive softening coefficient (0.825) of 28 days is good.Cementing experiments show that the bond between the material and the coal is good.After field application,the leakage rate of 100 meters of spraying roadway was reduced from 6.5 m3/min to 0.7 m3/min.关键词
煤自燃/漏风/喷涂材料/凝结时间/黏度/强度/胶结性Key words
spontaneous combustion of coal/air leakage/spraying material/setting time/viscosity/strength/cementation分类
矿业与冶金引用本文复制引用
赵文彬,董清府,薄福利,李振武,王均双,杨春辉..复合防灭火喷涂封堵材料特性研究[J].煤矿安全,2018,49(3):24-28,5.
