Mining or in situ disintegration of hard material – Processes – Mine safety
Patent
1992-03-31
1993-06-15
Bagnell, David J.
Mining or in situ disintegration of hard material
Processes
Mine safety
261116, 299 43, E21C 3522
Patent
active
052192083
ABSTRACT:
An air scrubbing system for removing dust produced by longwall shearers from the operator's work area. The system uses a plurality of small scrubbing units mounted on the shearer. Each of the scrubbing units utilizes a series of twin fluid atomizers located at the inlet of the unit to produce a fine water mist for capturing the respirable dust. The scrubbing units return the dust-laden mist to the coal face.
REFERENCES:
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patent: 4068802 (1978-01-01), Goings
patent: 4351567 (1982-09-01), Gillingham
patent: 4358160 (1982-11-01), Kissell et al.
patent: 4552487 (1985-11-01), Weirich
patent: 4555059 (1985-11-01), Collins et al.
patent: 5145236 (1992-09-01), Liao et al.
"Reducing Longwall Face Workers' Respirable Dust Exposure From Roof Support Movement", Bureau of Mines, Technology News, No. 205, Aug. 1984.
"Ventilation Curtain reduces Dust from Cutting into Longwall Entry", Bureau of Mines, Technology News, No. 137, Mar. 1982.
"Reduce Dust on Longwall Faces with a God Curtain", Bureau of Mines, Technology News, No. 119, Nov. 1981.
"Modified Cutting Sequence Reduces Longwall Shearer Operators' Dust Exposure", Bureau of Mines, Technology News, No. 116, Nov. 1981.
"Spring-Mounted Screens on Shearer Reduce Operators' Dust Exposure", Bureau of Mines, Technology News, No 121, Dec. 1981.
Report of Investigations 9037, "Using Barriers to Reduce Dust Exposure of Longwall Face Workers", Jankowski et al, Bureau of Mines, 1986.
Technical Progress Report 111, "Reducing Dust at Longwall Shearers by Confining the Dust Cloud to the Face", by Kissell et al, Bureau of Mines, Feb. 1981.
Graham George W.
Liao Chung F.
Bagnell David J.
Zeigler Coal Holding Company
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