Synthesis and Study of Antioxidant Composite Resistive Materials Based on Anti-Spontaneous Coal Combustion Application

Abstract

The traditional approaches to extinguishing coal mine fires are plagued by problems such as limited effectiveness, long duration, and limited application when dealing with hidden coal seams. This study presents a novel technology called composite retardant anti-spontaneous coal combustion to tackle the problem of coal residues spontaneously catching fire in high-level mining areas of coal mines. An antioxidant-containing composite retardant was created and mixed with gel and foam components to create an antioxidant-retardant three-phase gel foam, using hollow mesoporous titanium dioxide nanoparticles as the carrier. An FTIR and XRD analysis was performed to determine the chemical composition of the resist, while SEM and TEM were utilised to observe its micro-morphological properties. Furthermore, the temperature programming experiments were conducted to assess the inhibitory effectiveness of the inhibitor on coal, as well as to measure the alterations in mass and product during coal oxidation and pyrolysis processes. The findings indicate that the combination of the antioxidant and retardant can successfully reduce the coal oxygenation response by synergistically inhibiting the spread of flames and facilitating the creation of carbon. Hence, this leads to a deceleration of the coal's oxidation process. Therefore, it is an ideal substance for preventing the occurrence of spontaneous combustion in coal.

Keywords: Preventing spontaneous coal combustion, Antioxidant-retardant；Three-phase gel foam；Inhibitor；The temperature programming experiments.