矿用新型防灭火材料的制备研究  

Research on The Preparation of A New Type of Fire-resistant Material for Mining

作　　者：蔡镇涛 胡东[2] CAI Zhen-tao;HU Dong(Safety Science and Engineering School of Anhui University of Science&Technology,Huainan 232001,China;Medicine School of Anhui University of Science&Technology,Huainan 232001,China)

机构地区：[1]安徽理工大学安全科学与工程学院,安徽淮南232001 [2]安徽理工大学医学院,安徽淮南232001

出　　处：《山东工业技术》2023年第6期87-90,共4页Journal of Shandong Industrial Technology

摘　　要：煤自燃是亟需解决的全球性难题。为克服传统泡沫防灭火材料保水性差、作用时间短的缺陷,开发了一种稳定性强、保水率高的新型矿用防灭火材料,并对其保水性能进行测试。结果表明:添加0.2%的稳泡剂瓜尔胶能大幅提升复合发泡剂的析液半衰期,同比提升97.89%。当胶凝剂海藻酸钠和交联剂氯化钙质量分数分别为0.6%及0.2%时,凝胶泡沫的综合性能最佳,其成胶时间为10 min,粘度为6824 mpa·s,在80℃下持续加热10 h后的保水率仍然保有30.48%,展现出优异的防治潜力。Coal spontaneous combustion is a pressing global issue.To overcome the shortcomings of traditional foam fire-resistant materials,such as poor water retention and short duration of action,a new type of mining fire-resistant material with high stability and water retention has been developed,and its water retention performance has been tested.The results indicate that the addition of 0.2%guar gum stabilizer significantly improves the liquid half-life of the composite foaming agent,with a 97.89%increase compared to the control.When the mass fractions of the sodium alginate gelatinizer and calcium chloride crosslinker are 0.6%and 0.2%respectively,the gel foam exhibits optimal comprehensive performance,with a gelation time of 10 min and a viscosity of 6824 mPa·s.Even after continuous heating at 80℃ for 10 h,the water retention rate remains at 30.48%,demonstrating its excellent fire prevention potential.

关 键 词：凝胶泡沫 防灭火材料 煤自燃 保水率 

分 类 号：TD752[矿业工程—矿井通风与安全]