Dust Control on Longwall Shearers Using Water-jet-assisted Cutters.
Taylor-CD; Kovscek-PD; Thimons-ED
Proc Respirable Dust in the Mineral Ind: Health Effects Char and Control 1986 Oct; :343-348
This paper describes how the Bureau of Mines equipped a longwall shearer with a water-jet-assisted cutting system and measured dust levels during the cutting of a simulated coal block. The block was cut dry at a conventional water spray pressure of 190 psi, and with water-jet-assisted cutting pressures ranging from 1,000 to 6,000 psi. At water pressures of 3,000 psi and higher, dust concentrations were reduced by as much as 85 pct via water-jet- assisted cutting in comparison with conventional water sprays. This reduction was achieved without any increase in the water flow rate.
Proc Respirable Dust in the Mineral Ind: Health Effects, Char and Control. Oct 1986, Pp 343-348