A compound binder of coal dust wetting and suppression for coal pile

Cheng, Jianwei; Zheng, Xianfeng; Lei, Yadong; Luo, Wei; Wang, Yu; Borowski, Marek; Li, Xiaochuan; Song, Wanting; Wang, Zui; Wang, Kai

doi:10.1016/j.psep.2020.08.031

Cited by 55 publications

(13 citation statements)

References 14 publications

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“…The concentration of SDBD and STAC solution is calculated and configured according to Formula (1). The concentration of SDBD and STAC solution is calculated and configured according to Formula (1).…”

Section: Methodsmentioning

confidence: 99%

“…As one of the most important primary energy sources in the world, coal occupies an irreplaceable position [1,2]. In the process of mining, storing and transporting coal resources, a large amount of coal dust will be generated, which causes serious damage to the environment [3][4][5]; at the same time, some coal mines contain inhalable and respirable coal dust content at rates of as high as 300 mg/m 3 [6], which will endanger the life and health of workers [7,8].…”

Section: Introductionmentioning

confidence: 99%

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Adsorption Characteristics of Ionic Surfactants on Anthracite Surface: A Combined Experimental and Modeling Study

et al. 2022

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Ionic surfactants are widely used in coal dust control in mines, and their adsorption characteristics on the coal surface have a great influence on the coal dust control effect. In this investigation, anionic sodium dodecylbenzenesulfonate (SDBS) and cationic octadecyltrimethylammonium chloride (STAC) were selected to explore the adsorption characteristics of ionic surfactants on the surface of anthracite. The experimental results show that the adsorption rate and efficiency of STAC on the surface of anthracite are higher than that of SDBS; STAC can form a denser surfactant layer on the surface of anthracite, with a larger adsorption capacity and higher strength. Molecular dynamics simulations show that the adsorption between STAC and the surface of anthracite is tighter, and the distribution at the coal–water interface is more uniform; the surface of anthracite modified by STAC has a stronger binding ability to water molecules.

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Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Adsorption Characteristics of Ionic Surfactants on Anthracite Surface: A Combined Experimental and Modeling Study

et al. 2022

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“…e fan is the heart of the mine, providing fresh air for the mine, excluding contaminated air, reducing the occurrence of gas explosions, coal dust explosions, and other disasters, and playing a pivotal role in the safe construction of the mine [18,19]. At present, many experts in related fields have conducted much research in the process of gas explosion shock wave propagation and already have a lot of theoretical knowledge; for example, Li et al studied the explosion pressure and impact generated by large explosions through numerical simulation [20]; Ye et al conducted theoretical and experimental research on the propagation law of flame and shock wave in the bend [21]; Song revealed the invented new dynamic response characteristics and laws of the explosion door of the vertical wind shaft during the explosion impact [22].…”

Section: Mine Fansmentioning

confidence: 99%

Damages of Underground Facilities in Coal Mines due to Gas Explosion Shock Waves: An Overview

Ran

Cheng

Zhang

et al. 2021

Shock and Vibration

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With coal mining depth increase, gas explosion accidents due to the high gas emission rates often occur which cause significant casualties and property damages. Among them, gas explosion shock waves not only can destroy the machines and equipment in mine roadways but also cause the failure of mine ventilation facilities resulting in secondary hazards. Thus, the mines’ serious disasters could happen. For many years, researchers have already done a great lot of works to study damages caused by the impact of shock waves of the gas explosions in underground mines. Research results provide a baseline for judgments of hazard effects by explosions. In this paper, the formation mechanism of the gas explosion shock wave is introduced firstly. Then, the damages for underground facilities, such as mechanical equipment, roadway, and life-saving devices are summarized and reviewed. Finally, a brief discussion about the methods is given, and some preliminary suggestions are also listed for improvements in the future.

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“…The coexistence of combustible dust and gas has been increasingly common in coal mining, petrochemical, metallurgical, textile, and pharmaceutical industries, where explosion accidents occur more and more frequently in two-phase mixtures [1][2][3][4][5][6] than before. Hybrid mixtures explosions can result in catastrophic personal injuries and devastating damages, according to Addai et al, [7][8][9][10][11][12] and the severity of hybrid mixture explosions was stronger than dust or gas explosions alone.…”

Section: Introductionmentioning

confidence: 99%

Influences of methane and propane on the explosion characteristics of polymethyl methacrylate and acrylonitrile butadiene styrene dusts

Cheng

Zhang

et al. 2021

Process Safety Progress

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Polymethyl methacrylate (PMMA) and acrylonitrile butadiene styrene copolymers (ABS) are widely applied to industrial production, with the risk of explosion mixed with combustible gas increasing gradually. A 20 L spherical explosive device was used to study the variation pattern of the explosion characteristics of four gas-dust mixtures: methane/PMMA, methane/ABS, propane/PMMA, and propane/ABS mixtures.The results showed that despite adding methane and propane, PMMA and ABS dusts within the range of minimum explosion concentration are still likely to explode. The comparative analysis shows that propane is more chemically reactive than methane and PMMA and ABS dusts mixed with propane are more dangerous than those mixed with methane. Meanwhile, it was found that as the concentration of methane and propane increases, the maximum explosion pressure P max , maximum explosion pressure rise rate (dP/dt) max , and explosive index K of the dusts rise as well, but the increasing trend remains steady. The single-phase methane and propane have higher maximum explosion pressure and explosive index than the gas-dust mixture, with the lowest maximum explosion pressure and explosive index found in the singlephase PMMA and ABS dusts. With methane and propane mixed, the explosion hazard of PMMA and ABS dusts is intensified from St1 to St3. This study reveals the explosion characteristics of PMMA and ABS dusts, providing a basis for ensuring a safe working environment, preventing and controlling explosion accidents, and reducing the destructiveness of accidents.

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A compound binder of coal dust wetting and suppression for coal pile

Cited by 55 publications

References 14 publications

Adsorption Characteristics of Ionic Surfactants on Anthracite Surface: A Combined Experimental and Modeling Study

Adsorption Characteristics of Ionic Surfactants on Anthracite Surface: A Combined Experimental and Modeling Study

Damages of Underground Facilities in Coal Mines due to Gas Explosion Shock Waves: An Overview

Influences of methane and propane on the explosion characteristics of polymethyl methacrylate and acrylonitrile butadiene styrene dusts

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