Experimental study of the effects of stacking modes on the spontaneous combustion of coal gangue

2019 ◽  
Vol 123 ◽  
pp. 39-47 ◽  
Author(s):  
Yuguo Wu ◽  
Xiaoyang Yu ◽  
Shengyong Hu ◽  
He Shao ◽  
Qi Liao ◽  
...  
Keyword(s):  
Experimental Study ◽  
Spontaneous Combustion ◽  
Coal Gangue ◽  
Spontaneous Combustion Of Coal

scholarly journals Preparation, Properties and Application of Gel Materials for Coal Gangue Control

Energies ◽  
2022 ◽  
Vol 15 (2) ◽  
pp. 557
Author(s):  
Xiaoqiang Zhang ◽  
Yuanyuan Pan
Keyword(s):  
Spontaneous Combustion ◽  
Sodium Dodecyl ◽  
Coconut Oil ◽  
Coal Gangue ◽  
Mass Ratio ◽  
Foaming Agent ◽  
Foam Stabilizer ◽  
Fire Extinguishing ◽  
Field Practice ◽  
Spontaneous Combustion Of Coal

In order to solve the problem of the spontaneous combustion of coal gangue, a coal gangue fire-extinguishing material of gel–foam was developed. The foaming agent was screened by the Waring blender method with varying foam amounts, and the superabsorbent foam stabilizer was synthesized by free radical polymerization. Moreover, the gel–foam was used in a spontaneous combustion of coal gangue mountain field practice. The results showed that when the mass fraction of sodium dodecyl sulfonate and coconut oil amide propyl betaine was 0.6% and 4:6, the foaming amount was as high as 1500 mL. When the mass ratio of chitosan to acrylic acid was 1:6, the neutralization degree was 80%, the cross-linking agent was 0.8%, and the initiator was 0.01%, the water absorption of the synthesized superabsorbent foam stabilizer reached 476 mL/g. The synthesized gel–foam was tested in a spontaneous combustion coal gangue hill in a certain area, and no reburning sign was found within one month.

scholarly journals A Simplified Model for SO2 Generation during Spontaneous Combustion of Coal Gangue

2021 ◽  
Vol 118 (5) ◽  
pp. 1469-1482
Author(s):  
Ang Li ◽  
Peng Lei ◽  
Changkun Chen ◽  
Tong Xu
Keyword(s):  
Spontaneous Combustion ◽  
Coal Gangue ◽  
Simplified Model ◽  
Spontaneous Combustion Of Coal
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