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Conference Proceedings

Sixth Large Open Pit Mining Conference 2007

Conference Proceedings

Sixth Large Open Pit Mining Conference 2007

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Safety Management of Open Pit Coal Mines from Occurrences of Spontaneous Heating/Fire - Case Studies

The problem of spontaneous heating/fire is very common in coal mines all over the world. The coal industry faces many problems day by day due to the occurrence of spontaneous heating in the open pit coal mines. Presently, about 70 per cent of total coal production in Indian mines is being carried out by open pit mining. Fire in coal, particularly in open pit mines not only causes irreparable loss of natural wealth but also damages the surface structures and pollutes the environment. It is well known that 75 per cent of the fires occur due to the spontaneous combustion of coal. Spontaneous heating is a very common occurrence in coal mines and is a major factor contributing to mine fire. The liability of coal to spontaneous heating causes many serious problems before, during and after mining. In opencast mines, coal immediately oxidises and catches fire due to the intrinsic characteristics of coal, such as low rank, high moisture, high volatile matter, presence of sulfur in the form of pyrites, low crossing point temperature (CPT) and ignition point temperature (IPT) value and less incubation period. In opencast mines, when the coal benches are left idle for a longer time, heat accumulation takes place in favourable conditions and sometimes leads to fire. The purpose of this paper is to present the different successful case studies regarding the safety management of open pit coal mines from occurrences of spontaneous heating/fire._x000D_
FORMAL CITATION:Singh, R V K, Sural, G and Singh, V K, 2007. Safety management of open pit coal mines from occurrences of spontaneous heating/fire - case studies, in Proceedings Sixth Large Open Pit Mining Conference 2007, pp 139-144 (The Australasian Institute of Mining and Metallurgy: Melbourne).
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  • Published: 2007
  • PDF Size: 1.904 Mb.
  • Unique ID: P200708021

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