scholarly journals The Performance and Mechanism of the Green Explosion Suppressant SGA for Coal Dust Explosion Suppression

ACS Omega ◽  
2021 ◽  
Author(s):  
Yansong Zhang ◽  
Kun Chen ◽  
Junjie Yang ◽  
Jinshe Chen ◽  
Zhichao Pan ◽  
...  
Keyword(s):  
Coal Dust ◽  
Dust Explosion ◽  
Explosion Suppression ◽  
Performance And Mechanism

Numerical simulation of coal dust explosion suppression by inert particles in spherical confined storage space

Fuel ◽  
2019 ◽  
Vol 253 ◽  
pp. 1342-1350 ◽  
Author(s):  
Xiang Wang ◽  
Xingwang Huang ◽  
Xinyan Zhang ◽  
Yansong Zhang ◽  
Yaqing Zhang
Keyword(s):  
Numerical Simulation ◽  
Coal Dust ◽  
Dust Explosion ◽  
Storage Space ◽  
Explosion Suppression ◽  
Inert Particles

scholarly journals Study on a New Type of Composite Powder Explosion Inhibitor Used to Suppress Underground Coal Dust Explosion

2021 ◽  
Vol 11 (18) ◽  
pp. 8512
Author(s):  
Bo Liu ◽  
Yuyuan Zhang ◽  
Kaili Xu ◽  
Yansong Zhang ◽  
Zheng Hao ◽  
...  
Keyword(s):  
Solid Waste ◽  
Composite Powder ◽  
Coal Dust ◽  
Industrial Safety ◽  
Dust Explosion ◽  
Preparation Methods ◽  
Dry Coating ◽  
Suppression Effect ◽  
Industrial Solid Waste ◽  
Explosion Suppression

At present, the world is committed to the development of environmentally friendly, sustainable and industrial safety. The effective treatment of industrial solid waste can be applied in the field of industrial safety. It is one of the ways to apply industrial solid waste to industrial safety to modify industrial solid waste and combine active powder to prepare industrial solid waste-based composite powder explosion inhibitors and apply it to underground coal dust explosion. This paper introduces the modification and preparation methods of industrial solid waste, and analyzes the good explosion suppression effect and good economic benefit of industrial solid waste-based composite powder explosion inhibitors on coal dust explosion. In this paper, four kinds of industrial solid wastes (red mud, slag, fly ash and sludge) were modified, and the modified solid waste materials with good carrier characteristics were obtained. Combined with a variety of active powders (NaHCO3, KH2PO4 and Al(OH)3), the industrial solid waste-based composite powder explosion inhibitors were obtained by solvent-crystallization (WCSC) and dry coating by ball milling (DCBM). Those kinds of explosion inhibitors can suppress the explosion of pulverized coal in 40–50% of cases. Compared with the powder explosion inhibitor commonly used in industry, it has a lower production cost and better explosion suppression effect. Those kinds of explosion inhibitors have a good industrial application prospect.

Preparation and performance of novel APP/NaY–Fe suppressant for coal dust explosion

2021 ◽  
Vol 69 ◽  
pp. 104374
Author(s):  
Qingxi Wei ◽  
Yansong Zhang ◽  
Kun Chen ◽  
Bo Liu ◽  
Xiangbao Meng ◽  
...  
Keyword(s):  
Coal Dust ◽  
Dust Explosion ◽  
And Performance

scholarly journals Evaluation of the Risk Factors on Coal Dust Explosion in Warehouse

2016 ◽  
Vol 77 ◽  
pp. 06014
Author(s):  
Latana Chanthaphasouk ◽  
Kreangkrai Maneeintr ◽  
Pinyo Meechumna ◽  
Suteera Luengwattanapong ◽  
Chantamanee Poonjarernsilp
Keyword(s):  
Risk Factors ◽  
Coal Dust ◽  
Dust Explosion

Study on explosion suppression of coal dust with different particle size by shell powder and NaHCO3

Fuel ◽  
2021 ◽  
Vol 306 ◽  
pp. 121709
Author(s):  
Xiangrui Wei ◽  
Yansong Zhang ◽  
Guangan Wu ◽  
Xinyan Zhang ◽  
Yaqing Zhang ◽  
...  
Keyword(s):  
Particle Size ◽  
Coal Dust ◽  
Explosion Suppression ◽  
Shell Powder

Experiment study on the propagation laws of gas and coal dust explosion in coal mine

2009 ◽  
Vol 15 (3) ◽  
pp. 262-266 ◽  
Author(s):  
Rong-jun Si ◽  
Run-zhi Li ◽  
Lei Wang ◽  
Zi-ke Wu
Keyword(s):  
Coal Mine ◽  
Coal Dust ◽  
Dust Explosion ◽  
Experiment Study

scholarly journals Theoretical basis for the formation of damaging factors during the coal aerosol explosion

2021 ◽  
Vol 15 (4) ◽  
pp. 130-138
Author(s):  
Olena Zavialova ◽  
Viktor Kostenko ◽  
Natalia Liashok ◽  
Mykola Grygorian ◽  
Tetiana Kostenko ◽  
...  
Keyword(s):  
Mine Working ◽  
Gaseous Medium ◽  
Coal Dust ◽  
Theoretical Research ◽  
Dust Explosion ◽  
Characteristic Points ◽  
Explosion Mechanism ◽  
Mine Workings ◽  
Negative Factors ◽  
Dust Deposits

Purpose. Assessing the process of damaging factors formation during the coal aerosol explosion in mine workings on the basis of theoretical research of the explosion of coal dust deposits in order to substantiate promising methods of protecting miners from their impact. Methods. An integrated approach is used, which includes a critical analysis of literature data on the occurrence and development of coal aerosol explosions in mine workings; theoretical research into the state of the gaseous medium at the characteristic points of the development diagram of the coal dust deposits explosion as a result of mining operations based on the laws of classical physics and chemistry. Findings. The main aspects of the explosion mechanism of dust in a powdery state, accumulated on the surfaces along the mine working perimeter, and the formation of such negative factors as the effect of gaseous medium accelerated movement, have been revealed; high temperature formed during coal and methane detonative combustion; increased gas pressure. The revealed aspects of the dust explosion mechanism make it possible to determine the main directions for protection of miners caught in the explosion. The diagram of the development of settled coal dust explosion along the mine working with normal ventilation conditions, taking into account the influence of seismic waves, has been improved. Originality. Analytical dependences, reflecting the value of gas energy at characteristic points of the diagram, have been determined, and the dynamics of the formation of negative factors caused by the explosion have been revealed. Practical implications. Possible ways of protecting miners from the impact of negative factors caused by the coal aerosol explosion and reducing the severe consequences of such accidents are proposed.

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