Gillies Wu Mining Technology

GWMT has extensive experience in evaluating and improving mine dust conditions. Latest approaches use real time personal respirable dust measurement. Under a recent ACARP grant GWMT have trialled a United States NIOSH developed cap lamp battery mounted personal dust monitor that gives real time response to a miner’s current dust exposure. It can be used to improve productivity by evaluation of engineering dust improvements such as sprays, scrubbers and miner position.

The accurate belt-mounted personal monitor continuously measures a miner’s personal exposure to respirable dust in mg/m³ and reports cumulative, current and projected information to the miner in numeric and graphical formats. At the end of the working shift, mine personnel can download detailed respirable dust exposure to a PC for further analysis. The monitor offers lower per sample costs than the current gravimetric sampling method. The TEOM microbalance provides microgram mass measurement sensitivity in the harsh mining environment.