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Results 1 - 9 of 9
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2/1/2010 - Conference papersThis paper describes field tests conducted by NIOSH to evaluate the effectiveness of a wet head continuous mining machine for reducing dust exposure for continuous miner operators.
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2/1/2010 - Conference papersThis paper describes lab experiments to examine the effect of spray type, pressure, machine body blocking sprays, and scrubber airflow on dust and gas levels while using a 12.2 m (40 ft) exhaust ventilation curtain setback from the face.
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7/1/2020 - Peer reviewed journal articlesA study to determine the optimal configuration of a water curtain developed to reduce float coal dust in mine airways.
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7/1/2007 - Peer reviewed journal articlesWater spray characteristics, including droplet size and velocity, airborne dust capture potential, and induced airflow quantity for various spray nozzle designs were evaluated to provide basic information for improving spray applications.
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6/1/2006 - Conference papersThis paper discusses NIOSH studies evaluating the impacts of emerging technologies that may reduce dust exposures for continuous mining and roof bolting personnel. These technologies include use of a wet-head cutting drum on a continuous mining machine,...
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1/1/2006 - Peer reviewed journal articlesNIOSH recently investigated the performance of a lower-pressure, water-powered in-line series spray scrubber for removing localized airborne dust emitted at the source. Results showed noticeable improvements in airborne dust capture efficiency through ...
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12/1/2004 - Peer reviewed journal articlesA laboratory study assessed the impacts of water spray pressure, face ventilation quantity, and line brattice setback distance on respirable dust and SF6 tracer gas concentrations around a continuous mining machine using a sprayfan or directional spray ...
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7/1/2000 - Peer reviewed journal articlesSupplemental water sprays were placed along the sides of a continuous mining machine to improve suppression and confinement of the dust cloud under the cutting boom to reduce downwind dust levels. Using a full-scale mock-up of a continuous mining machi...
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3/1/1999 - Conference papersTwo types of airflow splitting methods for improving longwall dust control were investigated by NIOSH's Pittsburgh Research Laboratory. These methods included a transducer mesh barrier and a staged spray barrier system.
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Content source: National Institute for Occupational Safety and Health, Mining Program