|Series||Report of investigations (United States. Bureau of Mines) -- 7849|
|Contributions||Cetinbas, A., Vinson, R., Cervik, J.|
The effect of water infusion on dust during plowing operations was investigated using existing methane drainage holes. These holes were cleaned of debris and a pipe was grouted into the hole for water infusion of the panel. Both total and respirable dust levels were reduced by 40 to 79 percent. Back to book. chapter Chapter 50 Pages. Ventilation and methane, dust, and noise controls. By Syd S. Peng. A Review of Dust Control Techniques for Longwalls: Quick overview of current longwall dust control techniques and the limitations of these techniques Impact of future regulations for dust control in longwall mines Better ways to control respirable dust levels in the future New technologies for dust control going forward to improve the. Ventilating air and water sprays are the primary means used to control dust and methane in longwall perdescribestheon-goingresearch effort to identify the current status of longwall min- ing and dust control technology being applied in the industry. 2 LONGWALL DUST PARAMETERS Longwall dust parameters provided to MSHA as part of the mine’s ventilation plan were reviewed to .
TECHNIQUES Four different techniques for methane and dust control will be considered: wing curtain; gob curtain; walkway curtain; and stageload- er-crusher dust control. Wing curtain The installation of a curtain from the face side rib perpendicularly across the entry to the stageloader directs the airflow so as to substantially reduce the dust carried over the shearer to the operators (Fig. . Ventilating air and water sprays remain the basis of dust control strategies for both longwall and continuous mining operations, and the level of application for these controls continues to increase. Guidelines for the Prediction and Control of Methane Emissions on Longwalls By Steven J. Schatzel, Ph.D., C. Özgen Karacan, Ph.D., Robert B. Krog, Gabriel S. Esterhuizen, Ph.D., and Gerrit V. R. Goodman, Ph.D. DEPARTMENT OF HEALTH AND HUMAN SERVICES Centers for Disease Control and Prevention National Institute for Occupational Safety and Health. Journals & Books; Help This paper will examine the current controls for dust mitigation on longwalls and propose a new testing methodology to determine dust mitigation efficiency (DME) of installed controls for both respirable and inhalable dust. providing the potential for better dust and methane dilution. Recent longwall surveys in.
Methane and dust controls for longwalls: Pocahontas No. 3 coalbed, Grundy, Virginia. Guidelines for the prediction and control of methane emissions on longwalls / "Although longwall mining productivity can far exceed that of room-and-pillar mining, the total methane emissions per extracted volume associated with longwall sections are generally higher than those for continuous miner or pillar. 11 Ventilation and methane, dust, and noise controls Introduction Longwall specific ventilation Methane control Dust control Noise control. 12 Longwall face move Introduction Pre-move preparation Move preparation Move Installation of the new face at the set-up room. Although gas drainage through surface boreholes has been the conventional means of methane control for US longwall gobs (mined spaces), auxiliary systems of gob-gas drainage during longwall mining will be essential for an increasing number of deep, gassy coal mines where ventilation is insufficient for adequate dilution of methane in bleeder entries.