Ahmad, I. and jagdish, Dr. and Nabiullah,, M. and Prasad,, R.S. (2009) Investigation into the effect of high expansion, high stability foaming material on auto oxidation of coal using thermo gravimeteric techniques. Journal of Mines, Metals & Fuels, 57 (11). pp. 399-412. ISSN 0022-2755

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Abstract

Spontaneous heating is a nagging problem in coal mines. It results in heavy economic losses and often precious human life. A number of techniques are practiced in various coal producing countries to control spontaneous heating and fire problem in underground coal mines. Among the different technique, uses of high expansion foam have been found as an effective tool to inertize the fire affected area and thus quenching the fire. In this technique, the foam generated using nitrogen gas at elevated pressure, remains stable for long time. Thus foam blankets the burning coal mass and provides inertization of the surrounding environment as well as cooling effect. The role of foam as inhibitor has not been studied in detail. This study deals with determination of efficacy of three different foaming compounds in retarding spontaneous heating characteristics of coal using thermo gravimetric analysis technique. The findings have indicated that coal samples treated with foam compound have visible impact on retardation of spontaneous heating characteristics of coal.

Item Type:	Article
Subjects:	Mine Ventilation Explosive Research
Divisions:	UNSPECIFIED
Depositing User:	Dr. Satyendra Kumar Singh
Date Deposited:	17 Nov 2011 13:20
Last Modified:	17 Nov 2011 13:20
URI:	http://cimfr.csircentral.net/id/eprint/19

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