Research on Mechanism of New Gel Composites in Inhibiting Spontaneous Combustion in Gob

Peiling Zhou ； Yinghua Zhang ； Zhian Huang ； Yukun Gao ； Shouyi Song

《淡江理工學刊》 19卷4期 (2016/12) Pp. 471-478

https://doi.org/10.6180/jase.2016.19.4.10

摘要

In order to prevent the spontaneous combustion of coal in gob, a new material of yellow mud/gel composites was researched. According to the programmed heat experiments and combined with the data processing, ability of yellow mud/gel composite material to inhibit coal spontaneous combustion was studied. The results show that: when coal samples were processed by yellow mud/gel composites, amount of carbon monoxide, carbon dioxide and methane all apparently decreased; the effects on inhibiting coal oxidation was especially apparent in temperature range of 90℃~310℃, that water sustaining, flowing and inhibiting performance of material were all improved and the inhibiting rate could reach above 80%. The results demonstrated that new yellow mud/gel composite was capable of inhibiting the oxidation process, which indicated a new direction for preventing spontaneous combustion of coal and further assure safe production of coal mines.

關鍵字

New Gel Composites ； Spontaneous Combustion of Coal ； Inhibition ； Programmed Heat Experiment