Research on preparation and performance of a new type of inorganic paste fire preventing and extinguishing filling material in Shendong Mining Area

ZHANG Penghui; ZHANG Maowei; WU Rui; GU Qixiong

doi:10.13347/j.cnki.mkaq.20231202

Safety in Coal Mines > 2024 > 55(6): 100-110. > DOI: 10.13347/j.cnki.mkaq.20231202

ZHANG Penghui, ZHANG Maowei, WU Rui, et al. Research on preparation and performance of a new type of inorganic paste fire preventing and extinguishing filling material in Shendong Mining Area[J]. Safety in Coal Mines, 2024, 55（6）: 100−110. DOI: 10.13347/j.cnki.mkaq.20231202

Citation:

PDF (2695 KB)

Research on preparation and performance of a new type of inorganic paste fire preventing and extinguishing filling material in Shendong Mining Area

1.
Cuncaota Coal Mine, China Energy Shendong Coal Group Co., Ltd., Ordos 017209, China
2.
School of Resources & Environment Engineering, Jiangxi University of Science and Technology, Ganzhou 341000, China

More Information

Received Date: August 24, 2023
Revised Date: September 11, 2023

Graphical Abstract

Abstract

Abstract

In order to solve the problem of many coal remains, easy to spontaneous combustion and difficult to be sealed in the goaf near the two ends of roadway of the working face in Shendong Mining Area, this paper proposes a new type of inorganic paste fire preventing and extinguishing filling material, which can efficiently and quickly fill the upper and lower corners of the working face. Fly ash, slag and P·O·42.5 silicate cement, which are easily accessible in the vicinity of Shendong Mining Area, are used as the main raw materials of the paste, and the physical properties and chemical compositions of the materials are investigated through indoor tests, and the optimal ratio of the paste and the amount of additives are determined through the paste liquidity test, the paste solidification test, the paste expansion test and the paste filling strength test. The test results show that: the slag base paste has good self-expansion, the self-expansion rate can reach 5.6% in 7 days, and the initial setting time is short, which can meet the strength requirements of the project. The best proportioning scheme of the paste fireproofing material is cement : fly ash : slag = 1 : 4 : 20, and the mass fraction is 78%, and the addition amount of J85 accelerator is 6%. The engineering application shows that, after using the preferred paste filling material for corner filling and sealing, the air leakage in the mining airspace is reduced to 30% of that before filling, the CO volume fraction is reduced from 120×10⁻⁶ to 46.5×10⁻⁶, the O₂ volume fraction is reduced to less than 10% at a point of about 80 m in depth of the strike length of the mining area, and the strike length of the dispersion zone + oxidation zone in the goaf is shortened from 160 m before filling to 80 m.
- inorganic pastes,
- fire preventing and extinguishing material,
- corner filling,
- flow properties,
- rapid setting properties,
- strength properties

FullText(HTML)

References (30)

References

[1]	梁运涛,侯贤军,罗海珠,等. 我国煤矿火灾防治现状及发展对策[J]. 煤炭科学技术,2016,44(6):1−6. LIANG Yuntao, HOU Xianjun, LUO Haizhu, et al. Development countermeasures and current situation of coal mine fire prevention & extinguishing in China[J]. Coal Science and Technology, 2016, 44(6): 1−6.
[2]	XIA T, ZHOU F, GAO F, et al. Simulation of coal self-heating processes in underground methane-rich coal seams[J]. International Journal of Coal Geology, 2015, 141: 1−12.
[3]	KONG B, LI Z H, YANG Y L, et al. A review on the mechanism, risk evaluation, and prevention of coal spontaneous combustion in China[J]. Environmental Science and Pollution Research International, 2017, 24(30): 23453−23470. doi: 10.1007/s11356-017-0209-6
[4]	郭志国. 惰性气体抑制煤自燃氧化升温机理的实验研究[D]. 北京:中国矿业大学(北京),2017.
[5]	梁运涛,罗海珠. 中国煤矿火灾防治技术现状与趋势[J]. 煤炭学报,2008,33(2):126−130. LIANG Yuntao, LUO Haizhu. Current situation and development trend for coal mine fire prevention & extinguishing techniques in China[J]. Journal of China Coal Society, 2008, 33(2): 126−130.
[6]	蒋仲安,杜翠凤,何理,等. 石灰凝胶阻化剂防灭火技术在高硫矿的应用研究[J]. 中国安全科学学报,2003,13(10):31−33. JIANG Zhongan, DU Cuifeng, HE Li, et al. Study on application of fireproofing and fire-extinguishing technology using fire-retardant lime-gel in coal mine of high sulfur content[J]. China Safety Science Journal, 2003, 13(10): 31−33.
[7]	任万兴,郭庆,左兵召,等. 近距离易自燃煤层群工作面回撤期均压防灭火技术[J]. 煤炭科学技术,2016,44(10):48−52. REN Wanxing, GUO Qing, ZUO Bingzhao, et al. Pressure balanced fire prevention and control technology during equipment withdrawing period of coal mining face in easy spontaneous combustion contiguous seams group[J]. Coal Science and Technology, 2016, 44(10): 48−52.
[8]	秦波涛,王德明. 防治煤炭自燃的三相泡沫新技术及应用[C]// 第3届全国煤炭工业生产一线青年技术创新文集. 北京:煤炭工业出版社,2008:291-298.
[9]	焦淑华. 注氮防灭火系统在宽沟煤矿的应用[J]. 河北煤炭,2009(5):20−21. JIAO Shuhua. Application of the fire extinguishing system of injected nitrogen in Kuan Gou mine[J]. Hebei Coal, 2009(5): 20−21.
[10]	LU Wei, ZHANG X D, YUAN Y, et al. Study on the characteristics and mechanism of a new type of antioxidant gel foam for coal spontaneous combustion prevention[J]. Colloids and Surfaces A: Physicochemical and Engineering Aspects, 2021, 628:DOI: 10.1016/j.colsurfa.2021.127254.
[11]	WANG L, LIU Z Y, YANG H Y, et al. A novel biomass thermoresponsive konjac glucomannan composite gel developed to control the coal spontaneous combustion: Fire prevention and extinguishing properties[J]. Fuel, 2021, 306: 121757. doi: 10.1016/j.fuel.2021.121757
[12]	郭旭东,范智海,司俊鸿,等. 综放采空区矸石堵漏充填防灭火技术[J]. 陕西煤炭,2016,35(2):82−86. GUO Xudong, FAN Zhihai, SI Junhong, et al. Technology of fire prevention with gangue backfilling in the fully-mechanized caving goaf[J]. Shaanxi Coal, 2016, 35(2): 82−86
[13]	陈庆丰. 近距离缓倾斜煤层群开采工作面自燃防治技术[J]. 煤矿安全,2021,52(2):78−82. CHEN Qingfeng. Prevention and control technology of spontaneous combustion in mining face of closely inclined coal seam group[J]. Safety in Coal Mines, 2021, 52(2): 78−82.
[14]	秦波涛,王德明. 矿井防灭火技术现状及研究进展[J]. 中国安全科学学报,2007,17(12):80−85. doi: 10.3969/j.issn.1003-3033.2007.12.014 QIN Botao, WANG Deming. Present situation and development of mine fire control technology[J]. China Safety Science Journal, 2007, 17(12): 80−85. doi: 10.3969/j.issn.1003-3033.2007.12.014
[15]	赵先科. 煤泥灌浆防灭火技术研究[D]. 西安:西安科技大学,2016.
[16]	阮国强. 鲍店煤矿粉煤灰胶体防灭火技术研究[D]. 西安:西安科技大学,2006.
[17]	ANGLE C, BERKOWITZ N. Distribution of oxygen forms in Alberta low rank coals[J]. Fuel, 1991, 70(7): 891−896. doi: 10.1016/0016-2361(91)90201-K
[18]	JONES J C. Steady behaviour of long duration in the spontaneous heating of a bituminous coal[J]. Journal of fire sciences, 1996, 14(2): 159−166. doi: 10.1177/073490419601400208
[19]	张义顺,何小芳,朱伶俐,等. 水泥-粉煤灰注浆材料的研发与应用[J]. 河南理工大学学报(自然科学版),2010,29(5):674−679. ZHANG Yishun, HE Xiaofang, ZHU Lingli, et al. Study and application of cement-fly ash grouting material[J]. Journal of Henan Polytechnic University(Natural Science), 2010, 29(5): 674−679.
[20]	轩召军,常庆粮. 膏体充填开采底板破坏机理及分区治理技术[J]. 煤矿安全,2022,53(8):210−217. XUAN Zhaojun, CHANG Qingliang. Study on floor failure mechanism of paste backfill mining and division area control technology[J]. Safety in Coal Mines, 2022, 53(8): 210−217.
[21]	王超,简勇,张延旭,等. 煤矿膏体充填材料电阻率的测定试验研究[J]. 煤矿安全,2021,52(4):66−71. WANG Chao, JIAN Yong, ZHANG Yanxu, et al. Experimental study on determination of resistivity of coal mine paste filling material[J]. Safety in Coal Mines, 2021, 52(4): 66−71.
[22]	PRABHU R S, ANURADHA R, JUDEA B. Understanding the mining waste as resources in self-compacting concrete: A numerical study on sustainable construction[J]. Resources Policy, 2022, 78: 102806. doi: 10.1016/j.resourpol.2022.102806
[23]	TAN H B, DU Chao, HE X Y, et al. Enhancement of compressive strength of high-volume fly ash cement paste by wet grinded cement: Towards low carbon cementitious materials[J]. Construction and Building Materials., 2022, 323: 126458. doi: 10.1016/j.conbuildmat.2022.126458
[24]	SUN Y, LI L H, LIAO J, et al. Dry shrinkage performance of cement-stabilized reclaimed lime-fly ash macadam[J]. Construction and Building Materials., 2022, 331: 127332. doi: 10.1016/j.conbuildmat.2022.127332
[25]	BEHERA S K, GHOSH C N, MISHRA D P, et al. Strength development and microstructural investigation of lead-zinc mill tailings based paste backfill with fly ash as alternative binder[J]. Cement and Concrete Composites, 2020, 109: 103553. doi: 10.1016/j.cemconcomp.2020.103553
[26]	MOHANA R, LEELA BHARATHI S M. Sustainable utilization of pre-treated and nano fly ash powder for the development of durable geopolymer mortars[J]. Advanced Powder Technology, 2022, 33: 103696. doi: 10.1016/j.apt.2022.103696
[27]	张勇,王启庆,张育宝,等. 粉煤灰煤矸石混合浆液性能试验研究[J]. 煤矿安全,2023,54(3):140−146. ZHANG Yong, WANG Qiqing, ZHANG Yubao, et al. Experimental study on performance of fly ash and coal gangue mixed slurry[J]. Safety in Coal Mines, 2023, 54(3): 140−146.
[28]	JIANG Y, LI B, HE J, et al. Properties and microstructure of packing-optimised recycled aggregate concrete with different cement paste or sand contents[J]. Construction and Building Materials., 2022, 344: 128178. doi: 10.1016/j.conbuildmat.2022.128178
[29]	ZHAO H T, XIANG Y, LIU J P, et al. Effects of reinforcement on autogenous deformation of early-age concrete containing CaO-based expansion agent[J]. Construction and Building Materials, 2022, 320: 126197. doi: 10.1016/j.conbuildmat.2021.126197
[30]	GUO J J, ZHANG S W, QI C G, et al. Effect of calcium sulfoaluminate and MgO expansive agent on the mechanical strength and crack resistance of concrete[J]. Construction and Building Materials, 2021, 299: 123833. doi: 10.1016/j.conbuildmat.2021.123833

[1]	ZHAO Yongfang, ZHANG Lingyun, YU Liya. Safety Evaluation for Rock Burst Based on Entropy-weight and Matter-element Extension Model[J]. Safety in Coal Mines, 2019, 50(6): 213-218.
[2]	LIANG Yunpei, ZHANG Yangyang, LI Quangui, ZHOU Lishuang. Attribute Synthetic Evaluation Model Based on Combined Weight for Predicting Risk of Coal and Gas Outburst[J]. Safety in Coal Mines, 2019, 50(1): 184-187.
[3]	PENG Xiandu, LI Shufang, ZHANG Ziwei. Fuzzy Extension Matter-element Evaluation Model of Mine Rescue Capability[J]. Safety in Coal Mines, 2018, 49(12): 242-244,248.
[4]	LUO Zhenmin, LI Kui, AN Yafei, LI Haitao, FU Wen. Risk Assessment of Gas Explosion Based on Improved Catastrophe Progression Method[J]. Safety in Coal Mines, 2018, 49(6): 246-250.
[5]	ZHU Yanqiu, YANG Li. Evaluation Model on Emergency Management Capability of Coal Mine Based on Scattering Degree Method and Support Vector Machine[J]. Safety in Coal Mines, 2017, 48(2): 226-229,233.
[6]	WANG Lu, LI Shugang, CHENG Lianhua, ZHANG Liang. Assessment Index System of Coal Mine Emergency Ability Based on PDCA Model[J]. Safety in Coal Mines, 2014, 45(8): 241-244.
[7]	TAN Zhanglu, ZHANG Changlu. Coal Mine Emergency Response Capability Based on Extension Superiority Evaluation Method[J]. Safety in Coal Mines, 2014, 45(4): 215-218.
[8]	SONG Jin-xing, WANG Sheng-rong. Catastrophe Progression Method for Coal and Gas Outburst Risk Comprehensive Evaluation[J]. Safety in Coal Mines, 2013, 44(10): 149-152.
[9]	ZHANG Shu-jin, LI Shao-quan, LI Shu-qing, XIE Qing-xue. Technology Maturity Evaluation of Gas Drainage in Coal Mine Based on AHP[J]. Safety in Coal Mines, 2013, 44(9): 169-172.
[10]	XU Feng, QIN Cheng. Study on Emergency Response Capability Evaluation of Coal Mine Water Disaster[J]. Safety in Coal Mines, 2012, 43(9): 26-29.

Cited By

Cited by

Periodical cited type(1)

李卓，孙屹，姜鑫，蒋景东. 低围压与不同温度作用下土石坝护坡土石混合体力学特性. 河海大学学报(自然科学版). 2024(06): 90-96 .

Other cited types(0)

Get Citation

PDF

XML

Article views (25) PDF downloads (1) Cited by(1)

Turn off MathJax

Article Contents

Abstract

References

Research on preparation and performance of a new type of inorganic paste fire preventing and extinguishing filling material in Shendong Mining Area