Investigation of the Role of Fire Retardants in Preventing Spontaneous Heating of Coal and Controlling Coal Mine Fires

2012 ◽  
Vol 51 (2) ◽  
pp. 227-245 ◽  
Author(s):  
J. Pandey ◽  
N. K. Mohalik ◽  
R. K. Mishra ◽  
A. Khalkho ◽  
D. Kumar ◽  
...  
2021 ◽  
Vol 1 (2) ◽  
Author(s):  
Dariusz OBRACAJ ◽  
Marek KORZEC ◽  
Tien Tung VU

The liability of coal to spontaneous combustion is the principal cause of mine fires. Spontaneouscombustion is one of the main threats in Polish and Vietnamese coal mines. The article presents an analysisof the spontaneous combustion of coal in mines of both countries. It is related to the natural prone of coalto spontaneous heating and consequently to its self-ignition. Despite the relevant recognition of themethods of preventing this threat, in mines, spontaneous combustion occurs during the exploitation ofcoal seams with low and very high self-ignition tendency. Apart from the technical factors related to thedesign of coal seam mining, the properties of coal have a significant impact on the occurrence ofspontaneous combustion. Their correct recognition is essential to the precautions against spontaneouscombustion for minimalizing the risk of a mine fire. Therefore, it is necessary to study the factorsinfluencing the propensity of coal to spontaneous heating. A review of the methods used to determine thepropensity of coal to spontaneous combustion is presented in the article. Based on the high-temperaturemethod of determining the propensity of coals to spontaneous combustion, the influence of selectedfactors related to samples' preparation for testing on the determination result was investigated. Theinfluence of the fractional decomposition and the moisture content in the prepared samples on thedetermination result was demonstrated. The presented research results may improve research proceduresfor determining the propensity of coal to spontaneous combustion.


Soil Science ◽  
1994 ◽  
Vol 158 (1) ◽  
pp. 47-55 ◽  
Author(s):  
WEIXING GUO ◽  
RICHARD R. PARIZEK ◽  
ARTHUR W. ROSE

2006 ◽  
Vol 3 (3) ◽  
pp. 212-218 ◽  
Author(s):  
Rashi Agarwal ◽  
D Singh ◽  
D S Chauhan ◽  
K P Singh

Fuel ◽  
1972 ◽  
Vol 51 (3) ◽  
pp. 214-220 ◽  
Author(s):  
K.K. Bhattacharyya
Keyword(s):  

Author(s):  
Aditi Nagrale ◽  
Roshani Wakodikar ◽  
Priti Nakade ◽  
Ketan Marothi ◽  
Kalyani Raut ◽  
...  

The accidents in coal mines are increased day by day. There are numerous life losses of many skilled workers and laborers. There is no advent precaution measure to detect the alarming cause of the coal mine accidents and provide an alert system. Occupational accidents and occupational diseases are common in the mining. The most common causes of accidents in coal mining are firedamp and dust explosions, landslips, mine fires, and technical failures related to transport and mechanization. An analysis of occupational accidents in the consideration of social and economic factors reports that the real causes behind these accidents, which are said to happen inevitably due to technical deficiencies or failures. Thus an automated alarming coal mine accident detect ion system is employed to rescue and protect the workers from the hazards. This system incorporates the combined action of the temperature, pressure and gas sensor and IOT module to detect the temperature, pressure and atmosphere in the coal mine and log every data onto the cloud using data logging. Then these data are accepted by a admin controlled sever page through data acquisition. The data processing takes place at a server page and the alert is send to the device to glow the alarm and to the concerned officials and rescue stations for taking the prevention measures.


2021 ◽  
pp. 301-321
Author(s):  
Sudhish Chandra Banerjee
Keyword(s):  

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