Experimental Research on the Performance of the Macromolecule Colloid Fire-Extinguishing Material for Coal Seam Spontaneous Combustion

被引:16
作者
Fan, Shixing [1 ,2 ]
Wen, Hu [1 ,2 ]
Zhang, Duo [1 ,2 ]
Yu, Zhijin [1 ,2 ]
机构
[1] Xian Univ Sci & Technol, Sch Safety Sci & Engn, Xian 710054, Shaanxi, Peoples R China
[2] Xian Univ Sci & Technol, Minist Educ, Key Lab Mine & Disaster Prevent & Control, Xian 710054, Shaanxi, Peoples R China
基金
中国国家自然科学基金;
关键词
LOW-TEMPERATURE OXIDATION; POWDER-RIVER-BASIN; ENVIRONMENTAL IMPACTS; IONIC LIQUIDS; PREVENTION; COALFIELD; PRODUCTS; BEHAVIOR; WITBANK; MINE;
D O I
10.1155/2019/6940985
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
Coal resources are rich in China. They are mainly concentrated in the northwest region. But these resources also make the situation of spontaneous coal combustion hazards most serious in this area. Affected by the arid and semiarid climate, the water resource in this area is relatively scarce. In order to improve the utilization rate of water, a macromolecule colloid for coal mine fire fighting was developed in this research. The main components of the macromolecule colloid and the principle of gel formation were analyzed. The physical and chemical properties of the macromolecule colloid were analyzed by the time of gelation and the water loss. The water content of the macromolecule colloid was as high as 99%. The inhibition performance of the macromolecule colloid on coal fire was studied by the programmed heating device. The experimental results show that the macromolecule colloid has a significant inhibitory effect on the heating rate, oxygen consumption rate, and gas production rate. It inhibits the coal-oxygen composite by increasing the activation energy (E-a) of coal, which also has the effect of wrapping coal to isolate oxygen. The inhibition performance of the macromolecule colloid on coal fire disasters is better than that of water, water glass, loess compound colloids, and other traditional fire-extinguishing materials.
引用
收藏
页数:10
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共 37 条
[1]   Environmental impacts associated with an abandoned mine in the Witbank Coalfield, South Africa [J].
Bell, FG ;
Bullock, SET ;
Hälbich, TFJ ;
Lindsay, P .
INTERNATIONAL JOURNAL OF COAL GEOLOGY, 2001, 45 (2-3) :195-216
[2]   Temperature programmed desorption of coal gases - Chemical and carbon isotope composition [J].
Buzek, Frantisek ;
Lnenickova, Zdenka .
FUEL, 2010, 89 (07) :1514-1524
[3]   An intelligent gel designed to control the spontaneous combustion of coal: Fire prevention and extinguishing properties [J].
Cheng, Weimin ;
Hu, Xiangming ;
Xie, Jun ;
Zhao, Yanyun .
FUEL, 2017, 210 :826-835
[4]   Prevention, control and/or extinguishment of coal seam fires using cellular grout [J].
Colaizzi, GJ .
INTERNATIONAL JOURNAL OF COAL GEOLOGY, 2004, 59 (1-2) :75-81
[5]   Inhibiting effect of imidazolium-based ionic liquids on the spontaneous combustion characteristics of lignite [J].
Cui, Fu-Sheng ;
Bin Laiwang ;
Shu, Chi-Min ;
Jiang, Jun-Cheng .
FUEL, 2018, 217 :508-514
[6]   Effect of oxygen concentration on low-temperature exothermic oxidation of pulverized coal [J].
Deng, Jun ;
Ren, Li-Feng ;
Ma, Li ;
Lei, Chang-Kui ;
Wei, Gao-Ming ;
Wang, Wei-Feng .
THERMOCHIMICA ACTA, 2018, 667 :102-110
[7]   Thermal analysis of spontaneous combustion behavior of partially oxidized coal [J].
Deng, Jun ;
Zhao, Jingyu ;
Zhang, Yanni ;
Huang, Anchi ;
Liu, Xiangrong ;
Zhai, Xiaowei ;
Wang, Caiping .
PROCESS SAFETY AND ENVIRONMENTAL PROTECTION, 2016, 104 :218-224
[8]   Application of composite fly ash gel to extinguish outcrop coal fires in China [J].
Deng, Jun ;
Xiao, Yang ;
Lu, Junhui ;
Wen, Hu ;
Jin, Yongfei .
NATURAL HAZARDS, 2015, 79 (02) :881-898
[9]   Experimental studies of spontaneous combustion and anaerobic cooling of coal [J].
Deng, Jun ;
Xiao, Yang ;
Li, Qingwei ;
Lu, Junhui ;
Wen, Hu .
FUEL, 2015, 157 :261-269
[10]   Effectiveness of catechin and poly(ethylene glycol) at inhibiting the spontaneous combustion of coal [J].
Dou, Guolan ;
Wang, Deming ;
Zhong, Xiaoxing ;
Qin, Botao .
FUEL PROCESSING TECHNOLOGY, 2014, 120 :123-127