2021
DOI: 10.1021/acsomega.1c05667
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Rapid Contrastive Experimental Study on the Adiabatic Spontaneous Combustion Period of Loose Lignite

Abstract: The adiabatic spontaneous combustion period of coal is an important index for the macroscopic characterization of coal spontaneous combustion, and it is affected by many internal and external factors. There are several methods to study it, but there are various shortcomings to these methods. Some require too much time, while others have too many interfering factors. To quickly obtain the accurate adiabatic spontaneous combustion period of coal, a rapid contrastive experimental method was designed. In this meth… Show more

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Cited by 8 publications
(7 citation statements)
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“…The samples of lignite in this experiment were obtained from the Fengshuigou Coal Mine of the Pingzhuang Coal Company in Inner Mongolia, China. The process of coal sample crushing preparation is the same as refs ( 7 ) and ( 16 ), and crushing and soaking are shown in Figure 10 , the water used for soaking is distilled water.…”
Section: Methodsmentioning
confidence: 99%
See 2 more Smart Citations
“…The samples of lignite in this experiment were obtained from the Fengshuigou Coal Mine of the Pingzhuang Coal Company in Inner Mongolia, China. The process of coal sample crushing preparation is the same as refs ( 7 ) and ( 16 ), and crushing and soaking are shown in Figure 10 , the water used for soaking is distilled water.…”
Section: Methodsmentioning
confidence: 99%
“… 2 , 3 This significantly affects and restricts the safe production of coal mines, threatens the lives and health of miners and causes greenhouse gas emissions and environmental pollution. 4 7 In addition, CSC also burns large amounts of coal resources and indirectly causes the destruction of surface vegetation, soil desertification, surface collapse, and disorderly discharge of dust particles. Thus, they have become a serious international environmental disaster.…”
Section: Introductionmentioning
confidence: 99%
See 1 more Smart Citation
“…Adiabatic oxidation and temperature-programmed methods are currently used mainly to investigate the spontaneous combustion characteristics of coal. Owing to the fact that the adiabatic oxidation method requires more coal samples and has a longer experimental cycle, the temperature-programmed method has been more widely used in studying the spontaneous combustion characteristics of coal. Xu et al investigated the characteristics of spontaneous heating and temperature rise, oxygen consumption rate, and gas product characteristics of CO/CO 2 in the temperature-programmed oxidation process of lignite from the Beizao coal mine.…”
Section: Introductionmentioning
confidence: 99%
“…Spontaneous combustion of coal (SCC) is a widespread problem worldwide that has evolved from a safety production problem into a serious international environmental disaster. The depths have gradually increased in recent years, the high temperatures (HT), high stresses (HS), high water contents (HW), high gas contents (HG), and thermodynamic disasters of these mines are serious and prominent . SCC in goaf areas is one of the main problems of thermodynamic disasters due to the increase of the coal and rock temperature, the increase of the SCC heating rate, the shortening of the time required for oxidation, the intensification of the risk of spontaneous combustion of coal (RSCC) in the goaf, and the difficulty of combustion prevention and control. , According to preliminary statistics, the maximum mining depth of the Heim mine in the Ruhr area of Germany is 1480 m, and the temperature of coal rock is as high as 68–70 °C; In China, in some coal mines below 800 m, the temperature of coal exceeds 45 °C and even reaches 50 °C .…”
Section: Introductionmentioning
confidence: 99%