摘要
通过对柴里煤矿粉煤灰特性的分析,提出了发泡剂的研制要求,设计出了相应的三相泡沫发泡器,并对粉煤灰三相泡沫的形成原因和稳定性进行了分析;同时,对粉煤灰三相泡沫的发泡倍数和稳定时间等参数进行了实验研究.结合在柴里煤矿的应用实例,表明当连续在采空区注3～5 d粉煤灰湘泡沫后,就能从根本上消除煤炭的自燃.
Expatiated the forming mechanism and stability of three-phase foam from chemical and physical angle according to the analysis of characteristic of Chaili Coalmine fly ash . And developed special foaming agent and foaming generator. The parameters of three-phase foam, for example, foaming multiple and stable time, were studied.Based on the application in Chaili Mine, the results indicated that the three-phase foam with fly ash can radically eliminate the spontaneous combustion of coal when it is continuously infused into goaf with 3~5 d.
出处
《煤炭学报》
EI
CAS
CSCD
北大核心
2005年第2期155-159,共5页
Journal of China Coal Society
基金
国家自然科学基金资助项目 (50274068)
教育部博士点基金资助项目 ( 20020290001 )
教育部科学技术研究重点资助项目 (01027)
关键词
粉煤灰
三相泡沫
发泡剂
发泡器
煤炭自燃
fly ash
three-phase foam
foaming agent
foaming generator
spontaneous combustion of coal
