Document Type
Conference Paper
Publication Date
2008
Abstract
The R70 test was performed on a series of coal samples taken from different locations in a US longwall mine. The values obtained produced a definite relationship between R70 and ash content, with the exception of one anomalously low result. An ash analysis of the sample showed that it had a high sodium (Na2O) content in response to the presence of the sodium zeolite mineral, analcime. A multiple regression of the R70, ash content and sodium (Na2O) content of the samples produced a self-heating rate prediction equation with an R2 of 0.98. This equation can now be used to predict the R70 self-heating rate of the coal at any location throughout the mine, thus assisting with hazard management planning.
COinS
Publication Details
This conference paper was originally published as Beamish, BB and Sainsbury, W, Development of a Site Specific Self-Heating Rate Prediction Equation for a High Volatile Bituminous Coal in Aziz, N (ed), Coal 2008: Coal Operators' Conference, University of Wollongong & the Australasian Institute of Mining and Metallurgy, 2008, 161-165.