成膜型胶体泡沫的制备及灭火降温特性研究

doi:10.16265/j.cnki.issn1003-3033.2022.10.2201

中国安全科学学报 ›› 2022, Vol. 32 ›› Issue (10): 121-126.doi: 10.16265/j.cnki.issn1003-3033.2022.10.2201

成膜型胶体泡沫的制备及灭火降温特性研究

史全林¹^,²(), 杨红旗¹^,³, 李洪彪¹^,³

¹ 中国矿业大学安全工程学院，江苏徐州 221116
² 河南省瓦斯地质与瓦斯治理重点实验室——省部共建国家重点实验室培育基地，河南焦作 454000
³ 平顶山天安煤业股份有限公司六矿，河南平顶山 467091

收稿日期:2022-04-22 修回日期:2022-08-18 出版日期:2022-10-28 发布日期:2023-04-28

作者简介:

史全林（1992—），男，山西运城人，博士，讲师，主要从事煤矿（田）火灾防治、工业固废利用、矿山绿色功能材料开发等相关研究。E-mail： quanlin_shi@163.com。

杨红旗高级工程师

李洪彪高级工程师

基金资助:
国家自然科学基金青年基金资助(52004278); 江苏省基础研究计划项目(BK20200658); 中国博士后科学基金资助(2021M703493); 河南省瓦斯地质与瓦斯治理重点实验室——省部共建国家重点实验室培育基地开放基金资助(WS2021B04)

Research on preparation of film-forming colloidal foam and its fire extinguishing and cooling characteristics

SHI Quanlin¹^,²(), YANG Hongqi¹^,³, LI Hongbiao¹^,³

¹ School of Safety Engineering， China University of Mining and Technology， Xuzhou Jiangsu 221116， China
² State Key Laboratory Cultivation Base for Gas Geology and Gas Control （Henan Polytechnic University）， Jiaozuo Henan 454000， China
³ Sixth Mine of Pingdingshan Tianan Coal Industry Co.， Ltd.， Pingdingshan Henan 467091， China

Received:2022-04-22 Revised:2022-08-18 Online:2022-10-28 Published:2023-04-28

摘要/Abstract

摘要：

针对现有防灭火泡沫稳定性差、对煤体隔氧时间短的问题，制备具有持久保水、成膜隔氧功能的胶体泡沫，试验研究成分配比对泡沫发泡性和稳定性的影响，分析胶体泡沫的成膜效果、耐热稳定性及灭火降温特性。结果表明：当发泡剂、稠化剂（TA）和交联剂（CA）的质量分数为0.3%、0.4%、0.3%时，胶体泡沫综合性能最佳，析液半衰期和发泡倍数达120 h和5倍以上；与水基泡沫相比，胶体泡沫能在煤表面形成一层完整致密的胶体膜，具有隔绝氧气、抑制煤氧化的效果；同时，胶体泡沫可以完全包裹高温燃煤并快速灭火降温，即使失水干燥后也可形成覆盖隔氧层。

关键词: 胶体泡沫, 稳定性, 成膜, 灭火降温, 煤自燃, 采空区

Abstract:

Aiming at the poor stability and short time for oxygen isolation of the existing fire-extinguishing foams， the novel colloidal foam technology with long-lasting water retention and film-forming function has been developed. The influence of the composition ratio on the foaming and stability of colloidal foam， its film-forming characteristics， and its inhibition and extinguishment characteristics were analyzed. The results show that the prepared colloidal foam using 0.3% foaming agent， 0.4% thickening agent（TA）， and 0.3% crosslinking agent（CA）exhibited the best comprehensive performance with the half-life and expansion ratio above 120 h and 5 times respectively. Moreover， colloidal foam could wrap the high-site ignition sources quickly to cover and extinguish. In addition， there would be a dense colloidal oxygen barrier film formed from the drying colloidal foam on the surface of the coal， which achieved the long-lasting prevention and control of coal spontaneous combustion.

Key words: colloidal foam, stability, film formation, extinguishing and cooling, spontaneous combustion of coal, goaf

史全林, 杨红旗, 李洪彪. 成膜型胶体泡沫的制备及灭火降温特性研究[J]. 中国安全科学学报, 2022, 32(10): 121-126.

SHI Quanlin, YANG Hongqi, LI Hongbiao. Research on preparation of film-forming colloidal foam and its fire extinguishing and cooling characteristics[J]. China Safety Science Journal, 2022, 32(10): 121-126.

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成膜型胶体泡沫的制备及灭火降温特性研究

Research on preparation of film-forming colloidal foam and its fire extinguishing and cooling characteristics

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