Dust control considerations for deep-cut mining when utilizing exhaust ventilation and a scrubber.
Pittsburgh, PA: U.S. Department of the Interior, Bureau of Mines, RI 9615, 1996 Jan; :1-18
The U.S. Bureau of Mines conducted a series of laboratory tests to investigate the effectiveness of using a flooded-bed scrubber with exhaust ventilation in deep-cut faces of up to 12.2 m in length. An experimental test program to determine the impact on respirable dust levels resulting from changes in face airflow, curtain setback distance, operator positioning, and operating parameters of the external spray system on the miner was completed. Gravimetric sampling was conducted in the immediate return and at three sampling locations on the off-curtain side of the entry. Statistically significant differences in dust levels on the order of 0.5 to 1.2 mg/cu m were observed between specific sampling locations and changes in several test parameters. Several of the statistically significant relationships were found at the inby operator position, which is the least desirable of the operator locations that were tested.
Air-flow; Air-pollution-control-equipment; Coal-miners; Exhaust-emissions; Mine-ventilation; Occupational-exposure; Occupational-safety-and-health; Particulates; Scrubbers; Spraying; Ventilation-systems; Water; Work-environments
Report of Investigations
NTIS Accession No.
Pittsburgh, PA: U.S. Department of the Interior, Bureau of Mines, RI 9615