Impact of water sprays on scrubber ventilation effectiveness
The authors study the impact of a directional water spray system on a unique single-inlet dust scrubber on a low-profile mining machine. Tests were conducted in a full-scale model mine using a continuous mining machine. Tracer gas was introduced at the face and concentrations of the tracer gas were monitored at the face and in the return. Various parameters tested included mining position, depth of cut, brattice setback, and combinations of scrubber, and directional or symmetrical sprays. Results presented indicate that either water spray configuration improved the ventilation effectiveness of the scrubber by a factor of 2 to 3. Average face ventilation effectiveness (FVE) values for all testing of the scrubber and directional sprays were 0.95, versus 0.37 for a standard 20-ft blowing curtain without sprays. No FVE values were less than the standard 20-ft blowing results.
- OSTI ID:
- 7270773
- Country of Publication:
- United States
- Language:
- English
Similar Records
Use of a directional spray system design to control respirable dust and free gas concentrations around a continuous mining machine
Feasibility of a machine-mounted scrubber system for ventilating coal-mine working faces. Open File report
Related Subjects
012033 -- Coal
Lignite
& Peat-- Underground Mining-- Mine Environment-- (1987-)
016000* -- Coal
Lignite
& Peat-- Health & Safety
AIR POLLUTION CONTROL
CONTINUOUS MINERS
CONTROL
CUTTER LOADERS
CUTTING MACHINES
DUSTS
EQUIPMENT
HAULAGE EQUIPMENT
ISOTOPE APPLICATIONS
LOADERS
MATERIALS HANDLING EQUIPMENT
MINING
MINING EQUIPMENT
POLLUTION CONTROL
POLLUTION CONTROL EQUIPMENT
REMOVAL
SCRUBBERS
SPRAYS
TRACER TECHNIQUES
UNDERGROUND MINING
VENTILATION SYSTEMS