Design, development and demonstration of a technique to water-flush the bits on a fixed drum continuous mining machine. Contract report 18 Jun 71--Feb 76
Technical Report
·
OSTI ID:7117591
Control of the dust produced by continuous-mining machines in coal mines is conventionally attained by water sprays from fixed nozzles mounted on the frame of the machine behind the cutting head. In the tests conducted under this contract a so-called 'wet-head' machine was used, where the spray nozzles were mounted on the rotating head itself, close to the coal-cutting bits. Operating the wet-head machine and a conventional spray machine in turns in the same section, the wet-head produced approximately 25 pct less respirable dust and 60 pct less total airborne dust than the conventional spray machine. (GRA)
- Research Organization:
- Bituminous Coal Research, Inc., Monroeville, PA (USA)
- OSTI ID:
- 7117591
- Report Number(s):
- PB-259207; BCR-L-747
- Country of Publication:
- United States
- Language:
- English
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