. Transactions. ncharacter from that of the Piegan and Gloster mines, the grade beingnearly double, with 93 per cent, of the total value in gold. Since it was advisable to use the one mill for all the ores, an all-slimetreatment was adopted, requiring the following changes and additions toexisting milling equipment: A standard Dorr duplex classifier, in addi-tion to the Akins classifier, following Chilean mills; two 5 by tube-mills having Komata lining (each driven by 50-hp. motor,short-belt drive) with two standard Dorr duplex classifiers in closedcircuit; and two 12-in. bucket e
. Transactions. ncharacter from that of the Piegan and Gloster mines, the grade beingnearly double, with 93 per cent, of the total value in gold. Since it was advisable to use the one mill for all the ores, an all-slimetreatment was adopted, requiring the following changes and additions toexisting milling equipment: A standard Dorr duplex classifier, in addi-tion to the Akins classifier, following Chilean mills; two 5 by tube-mills having Komata lining (each driven by 50-hp. motor,short-belt drive) with two standard Dorr duplex classifiers in closedcircuit; and two 12-in. bucket elevators in the crushing of the leaching tanks were converted into thickeners (one into asimple thickener and two into single-tray thickeners); the remaining twoleaching tanks were converted into Dorr agitators by increasing theirdepth to 20 ft; a new Dorr thickener, 29 by 7 ft., was added, and another 100 CYANIDE PLANT OF BARNES-KING DEVELOPMENT CO. Fresh Water Jank Ore Bin50 Tons to each Mill,. J^-* 1*-*—4 Y 370
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Keywords: ., bo, bookcentury1800, bookdecade1870, booksubjectmineralindustries
