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Reducing Coal Dust With Water JetsJets also cool and clean cutting equipment. Modular pick-and-bucket miner suffers from disadvantage: Creates large quantities of potentially explosive coal dust. Dust clogs drive chain and other parts and must be removed by hand. Picks and bucket lips become overheated by friction and be resharpened or replaced frequently. Addition of oscillating and rotating water jets to pick-and-bucket machine keeps down dust, cools cutting edges, and flushes machine. Rotating jets wash dust away from drive chain. Oscillating jets cool cutting surfaces. Both types of jet wet airborne coal dust; it precipitates.
Document ID
19850000236
Acquisition Source
Legacy CDMS
Document Type
Other - NASA Tech Brief
Authors
Gangal, M. D.
(Caltech)
Lewis, E. V.
(Caltech)
Date Acquired
August 12, 2013
Publication Date
October 1, 1985
Publication Information
Publication: NASA Tech Briefs
Volume: 9
Issue: 2
ISSN: 0145-319X
Subject Category
Machinery
Report/Patent Number
NPO-16180
Accession Number
85B10236
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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