Effect of symmetric bit wear and attack angle on airborne respirable dust and energy consumption. Report of investigations 1979
Technical Report
·
OSTI ID:5118527
The Bureau of Mines conducted a series of experiments using four different coal types to determine the effect of attack angle and symmetric bit wear on airborne respirable dust (ARD) generated by point-attack bits and in energy consumption. Neither had a significant effect on ARD at the 95-pct confidence level, but bit wear had a significant effect (95 pct confidence) on specific energy (energy per gram of cut coal) for three coal types. Depth of cut was the most significant factor affecting ARD and specific energy.
- Research Organization:
- Bureau of Mines, Twin Cities, MN (USA). Twin Cities Mining Research Center
- OSTI ID:
- 5118527
- Report Number(s):
- PB-80-134372
- Country of Publication:
- United States
- Language:
- English
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