地温与碱性条件对煤自燃影响的实验研究  

Experimental Study on Influence of Ground Temperature and Alkaline Conditions on Spontaneous Combustion of Coal

作　　者：郭炜舟 鲁喜辉 陈云民 张建伟 李民 郝英豪 郝朝瑜[2] 邢旭东[2] GUO Weizhou;LU Xihui;CHEN Yunmin;ZHANG Jianwei;LI Min;HAO Yinghao;HAO Chaoyu;XING Xudong(Zhongtian Hechuang Energy Co., Ltd., Ordos 017000, China;Liaoning Technical University, Fuxin 123000, China)

机构地区：[1]中天合创能源有限责任公司,内蒙古鄂尔多斯017000 [2]辽宁工程技术大学,辽宁阜新123000

出　　处：《煤矿安全》2018年第4期9-11,15,共4页Safety in Coal Mines

摘　　要：为了确定葫芦素、门克庆煤矿地温与碱性条件对煤炭的自燃影响,利用热重实验分别分析在特定温度与碱性下煤样的热重曲线,进而研究其对煤炭自燃影响。研究结果表明:葫芦素、门克庆煤矿地温对煤氧化燃烧过程的特征温度点及失重量并无影响,对煤炭自燃失水失重阶段累积的热量值有一定程度的影响;葫芦素煤矿煤样在碱性条件下会一定程度上促进煤氧化自燃,但影响不大,只要加强正常防火工作即可,而门克庆煤矿碱性水对煤自燃有较大影响,可以通过对煤喷洒碱性水来抑制煤氧化自燃。In order to determine the effect of ground temperature and alkaline conditions on the spontaneous combustion of coal in Hulusu and Menkeqing coal mines, the thermogravimetric curves of coal samples under certain temperature and alkalinity conditions were analyzed by thermogravimetry experiment, and the influence on coal spontaneous combustion was studied. The results show that the ground temperature in Hulusu and Menkeqing coal mines has no effect on the characteristic temperature point and the weight loss of coal in oxidation combustion process, but it has a certain influence on the calorific value accumulated in water and weight loss stage of coal spontaneous combustion; the coal sample from Hulusu Coal Mine can promote the spontaneous combustion of coal to some extent under alkaline conditions, but it has little influence, just need to strengthen normal fire prevention work; however, the alkaline water of Menkeqing Coal Mine has a great influence on the coal spontaneous combustion, which can be used to inhibit coal oxidation and spontaneous combustion by spraying alkaline water.

关 键 词：地温 碱性条件 热重实验 自燃 煤氧化 

分 类 号：TD752.2[矿业工程—矿井通风与安全]