复合胶体防灭火技术在治理小窑入侵中的应用.pdfVIP

第27卷第2期 煤 炭 技 术 V01．27．No．2 2008年2月 Coalrechnolo~v Feb。2o08 ～ }安全技术 } ．i， ．．．． 州．． 咖．一． 。， 复合胶体防灭火技术在治理小窑入侵中的应用 王晓宁 (西安科技大学 能源学院，西安710054) 摘 要：小窑入侵造成的煤体自燃，其治理存在如何有效降温、漏风控制、有效灭火等几个难点。复合胶体防灭火 技术以其独特的固水、吸热降温、密封堵漏、阻化性等性能成为适用于小窑入侵造成的煤体自燃治理技术方法。现 场的实际应用表明：该技术能够彻底地堵塞松散煤体内部空隙，实现了有效隔氧、降温和阻化等目的，为小窑入侵 导致的煤体自燃治理开辟了一条新途径。 关键词：小窑；复合胶体；煤自燃；灭火 中图分类号：TD75 文献标识码：A 文章编号：1008—8725(2008)02—0073—03 Application of Compound Colloid Technique in Extinguishing Coal Spontaneous Combustion Fire Caused by Small Coal Pits Intruding WANG Xiao—ning (Energy Department．Xi’an University of Science＆Technology．Xi’an 710054．China) Abstract：The treatment of coal spontaneous combustion caused by small coal pits intruding has several dim． cu]ties in how to drop temperature effectively，control the air leak，put out fire efficiently，etc．．The com— pound colloid technique of extinguishing fire became the available way of controlling coal spontaneous comb us— tion caused by small coal pits intruding，wiⅡl its particular capabilities of concreting water，dropping tempera— ture by decalescence，stifling leak gas，preventing comb ustion，and SO on．The practice on spot proved that this technique can jam inner interstice in incompact coal thoroughly with the purpose of separming from oxy— gen，dropping temperature，preventing comb ustion，which set up a new way of controlling coal spontaneous comb ustion caused by small coal pits intruding． Key words：small coal pit；compound colloid；coal spontaneous comb ustion；extinguishing fire 式，开一条巷道进人煤体后，然后在巷道两侧采煤， 0 引言 在厚煤层中以放顶煤为主。 小窑的开采方式一般类似于金属矿的开采