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A Statistical Evaluation of the Effects of Environmental and Operational Parameters on the Production of Coal Mine Dust.
NTIS: PB 297-834 :78 pages
This report comprises a statistical analysis of respirable coal mine dust data from six previous Bureau of Mines investigations. Relevant data items were cataloged and assembled and procedures were formulated suitable for the evaluation. A multilinear regression analysis that related dust concentrations measured in a mine to other mine parameters was selected for the procedure. Five variables that significantly affect dust concentrations in the return behind the brattice are the spray system used, the distance from the face to the return brattice, the return airflow, the production rate, and the water consumption rate; these variables describe 85 pct of the total variation in the return dust concentration. Results at the miner and jack-setter locations were somewhat less conclusive because only 17 pct of the variation in dust at the miner could be resolved, and only 48 pct of the variation at the jack-setter location could be explained.
CP; Final Contract Report;
NTIS Accession No.
NTIS: PB 297-834
Bituminous Coal Res., Inc.
Page last reviewed: April 12, 2019
Content source: National Institute for Occupational Safety and Health Education and Information Division