Results 11 to 20 of about 26,113 (267)

Early warning and control methods of coal spontaneous combustion in close distance coal seams in outburst mines

open access: yesMeikuang Anquan, 2022
The coal seam group in the outburst mine has the characteristics of mutual influence in the mining process, the goaf is connected, there are many air leakage places, and the fire prevention work is difficult.
DONG Xiaoming   +4 more
doaj   +1 more source

Dependence evaluation of factors influencing coal spontaneous ignition

open access: yesEnergy Science & Engineering, 2023
Coal spontaneous combustion is determined by a variety of factors. Testing can describe the changes incoal spontaneous combustion with various factors, however, the dependence of spontaneous combustion on various factors is unclear.
Kuan Wu   +6 more
doaj   +1 more source

Effect of Secondary Oxidation of Pre-Oxidized Coal on Early Warning Value for Spontaneous Combustion of Coal

open access: yesApplied Sciences, 2023
The indicative ability of a gas indicator for the spontaneous combustion of coal is affected by the secondary oxidation of oxidized coal, from old goafs, entering a new goaf through air leakages.
Chaowei Guo   +4 more
semanticscholar   +1 more source

Research Progress and Trend of Coal Spontaneous Combustion Fire Prevention Technology

open access: yesMeikuang Anquan, 2020
As one of the five major disasters in coal mine production, coal spontaneous combustion severely restricts the safety, efficiency and eco-friendliness in the mining process. Due to the diversified characteristics of theoretical methods for the prevention
GUO Jun, CAI Guobin, JIN Yan, ZHENG Xuezhao
doaj   +1 more source

Risk analysis and control technology of coal spontaneous combustion in the working face of protected soft thick coal seam

open access: yesMeikuang Anquan, 2023
With the gradual increase of coal seam mining depth, the protective seam mining has become a key scheme to effectively reduce coal spontaneous combustion.
ZHU Jian, WANG Xiaohuan, LI Wei, SHEN Hedi
doaj   +1 more source

Key technologies for intelligent monitoring and early warning of coal spontaneous combustion

open access: yesMeikuang Anquan, 2022
Coal spontaneous combustion disaster is one of the main disasters in the process of coal mining. The acquisition of multi-source three-dimensional parameters of spontaneous coal combustion, the in-depth analysis of data, the establishment of ...
YI Xin, HU Zhen, WANG Weifeng, DENG Jun
doaj   +1 more source

Risk identification of coal spontaneous combustion based on COWA modified G1 combination weighting cloud model

open access: yesScientific Reports, 2022
To realize the scientific judgment of spontaneous combustion risk in the coal mine, the spontaneous combustion influence factors were analyzed from the three aspects of coal spontaneous combustion tendency, air leakage, and oxygen supply, heat storage ...
Guorui Su   +4 more
doaj   +1 more source

Experimental study on inhibition of coal spontaneous combustion by hydroxyethylene diphosphonic acid

open access: yesMeikuang Anquan, 2022
In order to study the effect of hydroxyethylene diphosphonic acid(HEDP) on the characteristics of coal spontaneous combustion, a temperature-programmed gas chromatography experiment was carried out to compare and analyze the production and development of
SUN Meng   +3 more
doaj   +1 more source

Review of experimental methods to determine spontaneous combustion susceptibility of coal – Indian context [PDF]

open access: yes, 2016
This paper presents a critical review of the different techniques developed to investigate the susceptibility of coal to spontaneous combustion and fire.
Ahamed S.   +72 more
core   +2 more sources

Spontaneous Combustion of Coal (I)

open access: yesFire Science and Technology, 1985
Thermogravimetry of coal has been carried out by changing the oxygen concentration of the heating atmosphere, and the effect of oxygen in the concentration of 1-60% flow gas has been discussed based on the thermogravimetric curves. The kinetic parameters of exothermic oxidizing reaction of coal in the thermogravimetric, which has one of the critical ...
Tetsuya Nishimoto   +3 more
openaire   +3 more sources

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