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Spray characterization for coal mine dust removal.

Authors
Gemci-T; Chigier-N; Organiscak-JA
Source
Ninth International Conference on Liquid Atomization and Spray Systems. Sorrento, Italy: Institute for Liquid Atomization and Spray Systems - Europe, 2003 Jul; :1-8
Link
NIOSHTIC No.
20023773
Abstract
Dust scrubbing using water sprays is one of the most common techniques for airborne respirable dust control in the mining industry. Measurement of spray characteristics such as drop size and velocity using state-of-the-art laser instruments (Phase Doppler Particle Analyzer) will provide detailed information for a better understanding of wet scrubbing mechanisms such as inertial impaction, interception, and turbulent diffusion. All previous wet scrubber performance calculations were based on measurements of dust size and concentration as a function of water flow rate, water pressure, and average drop size. The real spray process undergoes dynamic changes so that it is necessary to determine spray characteristics such as drop size and velocities in both radial and axial directions.
Keywords
Respirable-dust; Dust-control; Coal-dust; Coal-mining; Underground-mining; Underground-miners; Coal-miners; Coal-workers; Coal-workers-pneumoconiosis; Pneumoconiosis; Black-lung
Contact
NIOSH Pittsburgh Research Laboratory, P.O. Box 18070, Pittsburgh, PA 15236
Publication Date
20030713
Document Type
Conference/Symposia Proceedings
Fiscal Year
2003
NTIS Accession No.
NTIS Price
NIOSH Division
PRL
Priority Area
Research Tools and Approaches: Control Technology and Personal Protective Equipment
Source Name
Ninth International Conference on Liquid Atomization and Spray Systems
State
PA; MN; IL
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