Research on Initial Prevention of Spontaneous Combustion in Coal Bunkers Based on Fire-Extinguishing and Fireproof Inerting

Tan, Bo; Li, Yongming; Zhang, Xuedong; Zhang, Zhaolun; Zhang, Heyu

doi:10.1021/acsomega.1c05528

Cited by 10 publications

(3 citation statements)

References 12 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In the top left, is a collaborative network consisting of Yang Shengqiang and Zhou Buzhuang, among others [83][84][85][86][87]. In the upper right center, is a collaborative network consisting of Tan Bo, Wang Haiyan, Niu Huiyong, and Shao Zhuangzhuang [88][89][90][91][92][93][94][95][96]. On the right is a collaborative network consisting of Li Zenghua and Kong Biao et al [97][98][99].…”

Section: Analysis Of the Volume Of Publications And Cooperationmentioning

confidence: 99%

Spatiotemporal Evolution and Frontier Focus Analysis Based on Coal Fire Control Body of Knowledge

Han,

Niu,

Liu

et al. 2024

Fire

View full text Add to dashboard Cite

Mine fire accidents frequently constitute a major threat to mining safety, and their potential consequences are extremely severe, which highlights the urgency of fire prevention and control research. In this study, the CiteSpace software was used to conduct a metrological analysis of 717 relevant studies in the field of mine fire prevention and control (MFPC), aiming to reveal the research trends and trends in this field. This analysis found that the annual number of MFPC articles showed a significant upward trend, indicating that it is in rapid development during the active period. China, the United States, and Australia are the main contributors in this field, and the institutional contribution of China University of Mining and Technology is particularly outstanding, reflecting the regional concentration of research activities. The analysis of cooperation networks reveals the close cross-regional collaboration among European countries. The inhibition effect and evaluation criteria and the inhibition technology under different coal characteristics have become the focus of research. Activation energy, release, and quantum chemistry have become recent hot spots, reflecting the research on the mechanism of forward physicochemical synergistic inhibition and the in-depth exploration of the molecular level. It indicates that future research will focus on the development of temperature-responsive retardant materials, the application of quantum chemistry theory, and the exploration of the microscopic mechanism of coal spontaneous combustion through molecular simulation technology to further optimize the fire prevention strategy. In summary, the findings of this study not only provide a comprehensive picture of current research activities in the MFPC field but also indicate potential directions for future research and have important guiding significance for promoting the development of this field.

show abstract

Section: Analysis Of the Volume Of Publications And Cooperationmentioning

confidence: 99%

Spatiotemporal Evolution and Frontier Focus Analysis Based on Coal Fire Control Body of Knowledge

Han,

Niu,

Liu

et al. 2024

Fire

View full text Add to dashboard Cite

show abstract

“…Uncertainties in terms of epidemics, wars, and antiglobalization trades have increased in recent decades, leading to extensive investigations on energy security worldwide. − As a conventional fossil fuel, coal is expected to remain the primary source of energy in China in the coming decades. − To ensure energy security, the Chinese government has proposed increasing the deployable coal storage from 100 to 200 million tons . For coal storage, silos are widely used in power plants, ports, and other places owing to the advantages of environmental protection, high space utilization rate, and convenient transportation. − However, the closed environment of silos results in a heat storage condition that could lead to the low-temperature oxidation (LTO) of coal, which increases the risk of spontaneous combustion of silo coal. − Therefore, the characteristics of the LTO and spontaneous combustion of silo coal should be investigated for ensuring the safety of silos.…”

Section: Introductionmentioning

confidence: 99%

“…8 − 10 However, the closed environment of silos results in a heat storage condition that could lead to the low-temperature oxidation (LTO) of coal, which increases the risk of spontaneous combustion of silo coal. 11 − 13 Therefore, the characteristics of the LTO and spontaneous combustion of silo coal should be investigated for ensuring the safety of silos.…”

Section: Introductionmentioning

confidence: 99%

Effect of Coal Dust Content on the Low-temperature Oxidation of Silo Coal

et al. 2022

View full text Add to dashboard Cite

Coal's low-temperature oxidation (LTO) poses a significant threat to the safety of storing coal in silos. This study investigates the impact of coal dust content on the LTO characteristics of silo coal samples. The results indicate that the larger the coal dust content the higher the oxygen (O 2 ) consumption rate and carbon monoxide (CO) generation rate and the stronger the LTO capacity. To clear the mechanism of the impact, the thermal physical characteristics were studied and thermogravimetric and differential thermal analysis (TG-DTA) experiments were performed on various coal samples. The results show that, first, with the increase of coal dust content, the thermal conductivity of the silo coal samples initially increased and then decreased, whereas the thermal diffusion and heat capacity decreased and increased linearly, respectively. This indicates that the heat storage capacity of the silo coal sample is enhanced with the increase of the coal dust content. Second, the maximum oxygen absorption rate and differential thermal reduction value of the coal samples increased linearly with the decrease in their particle size; this result verifies that decreasing the particle size of silo coal can advance its LTO process. The study findings indicate that the risk of LTO and spontaneous combustion of silo coal can be effectively reduced by controlling the coal dust content (fine coal particles).

show abstract

Investigation of adsorption-diffusion behaviors of elementary O2, CO2, and N2 in coal particles: influence from temperature

Liu

Chu

et al. 2023

Environ Sci Pollut Res

View full text Add to dashboard Cite

Adsorption-diffusion behaviors of gases (i.e., O 2 , CO 2 and N 2 ) in coal are directly related to the coal spontaneous combustion (CSC), in which the temperature is the key factor affecting the gas migration process in coal. In this work, isothermal adsorption experiments of O 2 , CO 2 and N 2 under different temperatures were carried out on bituminous coal and anthracite coal samples at 0.5 MPa, respectively. Based on the free gas density gradient diffusion (FDGD) model, the microchannel diffusion coe cients of different gases at different temperatures were calculated, and the effects from temperature were quantitatively evaluated. The results acquired from the experiment and simulation show that (i) the adsorption capacity of these three gases decreases as the temperature increases, and the adsorption capacity at the same temperature satis es CO 2 > O 2 > N 2 ; (ii) the FDGD model is veri ed to be still applicable at high temperatures, indicating that the adsorption-diffusion behavior of O 2 , CO 2 and N 2 in coal particles at different temperatures is still consistent with the free gas density gradient diffusion; (iii) the microchannel diffusion coe cient K m of the three gases gradually increases when the temperature goes up. The present work contributes to the understanding of the gases migration process in the development of CSC.

show abstract

Research on Initial Prevention of Spontaneous Combustion in Coal Bunkers Based on Fire-Extinguishing and Fireproof Inerting

Cited by 10 publications

References 12 publications

Spatiotemporal Evolution and Frontier Focus Analysis Based on Coal Fire Control Body of Knowledge

Spatiotemporal Evolution and Frontier Focus Analysis Based on Coal Fire Control Body of Knowledge

Effect of Coal Dust Content on the Low-temperature Oxidation of Silo Coal

Investigation of adsorption-diffusion behaviors of elementary O2, CO2, and N2 in coal particles: influence from temperature

Contact Info

Product

Resources

About