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Exhaust Ventilation of Deep Cuts Using a Continuous-mining Machine.

Authors
Volkwein-JC; Ruggieri-SK; McGlothlin-C; Kissell-FN
Source
MISSING :16 pages
Link
NIOSHTIC No.
10004814
Abstract
The Bureau of Mines, Foster-Miller, Inc., and Beaver Creek Coal Company have evaluated the ability of a new system to ventilate a 40-ft-deep cut. A remote-control continuous-mining machine, in a 7-ft-thick seam, with exhausting brattice was fitted with an improved sprayfan system plus additional forward and reverse pointing sprays. Static and dynamic tests using tracer gas were conducted in a full-scale model and underground to measure the effectiveness of exhaust face ventilation for various deep-cutting mine and spray configurations. When compared to a 10-ft primary ventilation brattice, the extended- cut spray system consistently provided better face ventilation at all configurations up to and including a 40-ft brattice setback. The system also provided good dust protection and visibility for the machine operator. Another safety advantage is the elimination of the need to set temporary roof supports to maintain the ventilation brattice.
Publication Date
19850101
Document Type
IH; Report of Investigations
Fiscal Year
1985
NTIS Accession No.
NTIS Price
Identifying No.
RI 8992
NIOSH Division
PRC;
Source Name
MISSING
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