Feasibility of a machine mounted scrubber system for ventilating coal mine working faces.
Washington, DC: U.S. Department of the Interior, Bureau of Mines, Contract J0199080, 1984 Jan; :1-117
Underground testing was carried out to determine the effectiveness of a machine-mounted scrubber system for ventilating the face during deep cutting. A continuous miner equipped with an integral flooded- bed dust scrubber system was instrumented. Methane and respirable dust data were collected at brattice setbacks of 25 ft (standard), 35 ft, and 50 ft (blowing ventilation) during production shifts. Results showed that a suitable machine-mounted scrubber system can adequately ventilate the face at brattice setbacks up to 50 ft. No deterioration in ventilation performance was observed as brattice setbacks were increased from 25 to 50 ft. The scrubber system effectively controlled face methane levels at large setbacks, although some increase in respirable dust levels at the operator cab was noted at setbacks greater than 25 ft. The use of the scrubber system consistently improved intake airflow (as measured at the curtain mouth) by an average of 29%.
Ventilation; Scrubbers; Coal mining; Methane; Effectiveness; Air flow; Data; Underground mining; Coal dust; Field tests; Air pollution control equipment; Model tests; Machine mounted
CP; Final Contract Report
NTIS Accession No.
OFR 24-85; Contract-J0199080
Washington, DC: U.S. Department of the Interior, Bureau of Mines, Contract J0199080
Ingersoll-Rand Research, Inc.