Analysis of the Current Status and Hot Technologies of Coal Spontaneous Combustion Warning

Abstract

Coal spontaneous combustion disasters are one of the most serious types of mine disasters in China at present, posing a huge threat to underground personal safety and coal production operations. In order to prevent and control coal spontaneous combustion hazards and construct an efficient early warning system, this paper presents a review of coal spontaneous combustion early warning based on the Web of Science database search of 583 papers related to coal spontaneous combustion early warning collected from 2002 to 2021, using VOSviewer visualization software. The number of publications and partnerships at the author, institution and country levels are obtained, and the research hotspots in the field of coal spontaneous combustion warning are obtained based on keyword co-occurrence and clustering. The results show that the research results of scholars with a high publication volume have significant influence in the field of coal spontaneous combustion warning and prevention and control, and a more mature camp has been formed among the research authors; a more stable core group of institutions has been formed in the field of coal spontaneous combustion warning; most of the national publications are concentrated in mineral resource-mining countries; the analysis of hot keywords shows that “sign gas warning” and “warning models and technologies” are the key contents of this field. The analysis of hot keywords shows that “sign gas early warning” and “early warning model and technology” are the key contents of this field. The research content of this paper is helpful for researchers to find the latest information on the current research and trends in the field of spontaneous combustion prevention and coal seam monitoring.

Prediction Model of Spontaneous Combustion of Lignite in Zhalainuoer Mining Area

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Effect of Inhibitors on Hydrogen Bond Reduction and Kaolinite Dissolution for Enhanced CO2 Adsorption in Coal

“…The spontaneous combustion of coal seams poses a persistent hazard in mining operations, presenting a challenge for effective mitigation. This phenomenon not only releases harmful gases but also triggers secondary disasters, such as gas and coal dust explosions. − Power plant flue gas contains high concentrations of CO 2 , N 2 , and other inert gases, which can be injected into mining areas to achieve CO 2 gas sequestration by exploiting the adsorption properties of coal rock on CO 2 . This approach not only reduces carbon emissions but also inhibits the spontaneous combustion of coal left in the goaf .…”

Optical Particle Visualization Technique Using Red–Green–Blue and Core Storage Shed Flow Field Analysis

“…The most common is the shed-type CSS, which is used in many power plants because it is economical and easy to construct. However, the major challenge with indoor coal storage is the spontaneous combustion of coal [1]. Factors of spontaneous combustion of coal include volatilization characteristics, storage period, size of coal particles, moisture, and impurities [2,3].…”