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Effects of water sprays used with a machine-mounted scrubber on face methane concentrations.

Authors
Taylor-CD; Zimmer-JA
Source
2001 SME Annual Meeting, February 26-28, 2001, Denver, Colorado, Preprint 01-114. Littleton, CO: Society for Mining, Metallurgy, and Exploration, 2001 Feb; :1-6
Link
NIOSHTIC No.
20027466
Abstract
This study was conducted to determine the effects of a machine-mounted scrubber and water sprays on face methane levels. Testing was conducted in the NIOSH ventilation test gallery which was designed to simulate a full-scale mine entry. In the test entry, a model mining machine, equipped with water sprays and a simulated dust scrubber, was located at the face of a 20-ft box cut. Blowing ventilation was provided using a curtain with a 40-ft setback distance. Methane released from a pipe manifold located inby the mining machine was monitored at six locations that were 1 ft outby the pipe manifold. Tests were first conducted to evaluate the effects of using sprays and scrubber separately on face methane levels. Additional tests were conducted to determine how a scrubber used with various water spray systems would affect face methane levels. The use of either sprays or scrubber reduced face methane levels significantly. The combined use of sprays with the scrubber further reduced face methane levels a small amount. Primarily the sprays affected methane levels by changing airflow distribution close to the face.
Keywords
Ventilation; Mining-industry; Mining-equipment; Scrubbers; Methane-control; Methanes; Dust-control-equipment; Dust-control; Dust-suppression; Dusts
Contact
NIOSH, Pittsburgh Research Laboratory, P.O. Box 18070, Pittsburgh, PA 15236
CAS No.
74-82-8
Publication Date
20010201
Document Type
Conference/Symposia Proceedings
Fiscal Year
2001
NTIS Accession No.
NTIS Price
NIOSH Division
PRL
Source Name
2001 SME Annual Meeting, February 26-28, 2001, Denver, Colorado, Preprint 01-114
State
CO
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