Ray, S. K. and Mishra, D. and Mohalik, N. K. and Pandey, J. and Khan, A. M. and Kumar, Aditya and Pandey, J. K. (2025) Reopening and Recovery of Fire Affected Sealed Panels: A Scientific Approach. Journal of The Institution of Engineers (India): Series D. ISSN 2250-2122

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Abstract

A mine or a part of a mine is sealed to control fire in a particular mine or a panel. Fire area should be sealed with stoppings and explosion proof stoppings, if necessary. There should be provision of sampling pipe such that air samples obtained from these represent the whole sealed off area. A considerable amount of time must elapse before the conditions become favourable for reopening and recovery of a mine or a panel. Status of sealed panel must be observed with respect to pressure behaviour, temperature measurement, gas content, and explosibility study. The reopening and recovery of a sealed off area should be undertaken with utmost effort keeping in mind the safety of mine and miners involved in that operation. There should be discussion with regulatory body, Directorate General of Mines Safety (DGMS), mine authority and scientific body to ensure that the sealed area may be opened at a suitable date and all arrangements to meet up any untoward incidents. Reopening should be undertaken with the help of rescue trained persons with adequate precautions. During recovery operation air sample from strategic locations should be monitored at regular interval, initially with greater frequency. Generally, controlled ventilation technique is implemented in recovery operation. The papers deals with a case study on reopening and recovery of sealed panel in Churi underground mine of Central Coalfields Ltd, a subsidiary of Coal India Ltd, India. Gas analysis data of more than one year, pressure behaviour study for more than 14 days have been interpreted to ensure that sealed area is safe to reopen. Reopening was done under rescue cover with due care to mine and miner. Controlled ventilation, provision of water pipe, quick recovery of fallen coal was adopted to deal with the situation.

Item Type:	Article
Subjects:	Mine Ventilation
Divisions:	UNSPECIFIED
Depositing User:	Mr. B. R. Panduranga
Date Deposited:	08 Sep 2025 06:47
Last Modified:	08 Sep 2025 06:47
URI:	http://cimfr.csircentral.net/id/eprint/2870

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