(Longwall coal mining dust control). Technical progress report, 1 November-30 November 1984
Technical Report
·
OSTI ID:6230121
During November, evaluation of the dust (and gas) concentrations around the tailgate drum zone continued with the spillplate extended up to the point of shield advance. The extension of the spillplate reduced recirculation downwind of the tailgate drum and also provided test conditions. In order to better evaluate the tailgate drum zone, additional sampling points were installed. Tracer gas concentrations from a twenty-one (21) point three-tier sampling volume arround the tailgate drum were measured for comparative purposes. Tests were conducted varying one test parameter at a time, normally under two spray conditions: (A) Base Line - drums rotating with drum sprays operating at 100 psi water pressure; and (B) Base Line (as in A above) - with a shearer clearer spray system at 150 psi water pressure. The tracer gas concentration at the headgate operator, tailgate operator and at the twenty-one point tailgate drum volume for each parameter change is presented in Table 1.
- Research Organization:
- Foster-Miller Associates, Inc., Waltham, MA (USA)
- DOE Contract Number:
- AI01-81FE00016
- OSTI ID:
- 6230121
- Report Number(s):
- DOE/FE/00016-T65; ON: DE85005218
- Country of Publication:
- United States
- Language:
- English
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