高水充填材料防灭火阻燃性能试验研究

Experiment study on fire prevention and flame retardant performances of high water backfill material

为了研究高水充填材料的防灭火特性,促使其更好地应用推广于矿井防灭火领域,针对高水充填材料与传统黄泥材料的阻燃性能开展对比试验研究,分析其阻燃效果及作用机理。通过对比试验发现,高水充填材料对煤自燃氧化过程中的煤自燃氧化升温速率、氧化产生的标志性气体(CO、CO_2、C_2H_4)的生成速率均有一定的抑制作用;同一水灰比条件下,高水充填材料比黄泥材料的抑制煤自燃氧化作用强。结合防灭火工程实践应用表明,高水充填材料的阻燃效果优于黄泥材料,完全可以替代黄泥材料作为矿井防灭火的充填材料。

In order to study the fire prevention and control features of the high water backfill material and to promote the application of the material to the mine fire prevention and control area, according to the flame retardant performances of the high water backfill material and the conventional loess material, a comparison experiment study was conducted and the flame retardant effect and function mechanism were analyzed. The comparison experiment showed that the high water backfill material would have a certain restrained effect to the oxidation and temperature rising rate of the coal spontaneous combustion during the coal spontaneous combustion and oxidation process and the indi- cated gas （ CO, CO2 and C2 H4 ） generation rater from the oxidation. Under the same water and cement ratio, the high water backfill material would have higher coal spontaneous combustion and oxidation restrained effect than the loess material. The combined practices and appli- cation of the fire prevention and control engineering showed that the flame retardant effect of the high water backfill material was better than the loess material, and the high water backfill material would fully replace the loess material as the backfill material of the mine fire prevention and control.