The quicksilver resources of California . placing the door of the retort inside thewall, cooling of the space against the door and consequentaccumulation of mercury at that point are prevented. The. charge is from 75 to 80 pounds of concentrates per shift, withthe necessary lime, against 150 pounds of raw ore. Two fur-nace men are required—one per shift. The expenses of this plant are about $25 per day for labor, 202 QUICKSILVER RESOURCES OF CALIFORNIA. fuel, repairs, etc. The lo-pipe retort, with suitable ore, canhandle the total product of the concentrating mill, running dayand night, concen
The quicksilver resources of California . placing the door of the retort inside thewall, cooling of the space against the door and consequentaccumulation of mercury at that point are prevented. The. charge is from 75 to 80 pounds of concentrates per shift, withthe necessary lime, against 150 pounds of raw ore. Two fur-nace men are required—one per shift. The expenses of this plant are about $25 per day for labor, 202 QUICKSILVER RESOURCES OF CALIFORNIA. fuel, repairs, etc. The lo-pipe retort, with suitable ore, canhandle the total product of the concentrating mill, running dayand night, concentrating from 20 to 24 tons. The total costof the plant, not including the mill building, is approximatel3: 25 H. P. engine $1, Rock-crusher 5-foot Huntington mill 1, 5 bumping-tables 1, Concentrating table I elevator Fittings, pipes, etc Contingent expenses I pipe retort, with building and drier $5, 2, $7, j7, This plant in three months turned out 330 flasks of mercurj-;^ / / 1. i 4 Iron pipe from re/ort
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Keywords: ., bookcentury1900, bookdecade1900, booksubjectminesandmineralresou
