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An Improved Composite Fly Ash Gel to Extinguish Underground Coal Fire in Close Distance Coal Seams: A Case Study
Advances in Materials Science and Engineering ( IF 2.098 ) Pub Date : 2020-06-29 , DOI: 10.1155/2020/5695471
Jun Guo 1, 2, 3 , Guobin Cai 1, 2 , Yan Jin 1, 3 , Xuezhao Zheng 1, 2, 3 , Yin Liu 1, 3
Affiliation  

Fire extinguishing with the superior performance of fly ash composite colloid material is a cost-effective colloid fire prevention technology. In this paper, a new powder additive (suspending agent (XK-XJ) and gelling agent) was developed for the existing fire extinguishing technology of fly ash compound colloid. Tests show that the best additions to the fly ash slurry were 0.3% and 0.1∼0.3%, respectively. The grouting technical scheme of adding a suspending agent on the ground and gelling agent downhole was proposed to solve the problems of solid material settlement and blockage in the long-distance pipeline transportation process. Finally, the optimized fly ash colloid fire prevention and extinguishing technology was successfully applied to the fire control engineering examples of close-range coal seam groups, and the rationality of the developed powder and its proportion was tested, and the feasibility in coal fire control was tested.

中文翻译:

一种改进的粉煤灰胶体灭火近距离煤层的地下煤火研究

具有粉煤灰复合胶体材料优异性能的灭火技术是一种经济高效的胶体防火技术。本文针对粉煤灰复合胶体的现有灭火技术,开发了一种新型粉体添加剂(悬浮剂(XK-XJ)和胶凝剂)。试验表明,粉煤灰浆的最佳添加量分别为0.3%和0.1〜0.3%。提出了在地面上添加悬浮剂和井下胶凝剂的注浆技术方案,以解决长距离管道运输过程中固体物料沉降和堵塞的问题。最后,优化的粉煤灰胶体灭火技术成功地应用于近距离煤层群的消防工程实例,
更新日期:2020-06-29
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