. Machinery for metalliferous mines : a practical treatise for mining engineers, metallurgists and managers of mines. n below, and on throughautomatic feeders into the line of 30 heads of stamps (d, d) whichdischarge their pulp into the grinding i)ans (<, <), of which there are two 30-STAMP SILVER MILL. 191 to each 10 heads of stamps. The product of 10 stamps passes throughtwo of the special grinding pans in succession, and is then conveyed bya suitable pipe to the first of a series of ten amalgamating pans (//)through which it passes in succession, and on into the line of four settlers,
. Machinery for metalliferous mines : a practical treatise for mining engineers, metallurgists and managers of mines. n below, and on throughautomatic feeders into the line of 30 heads of stamps (d, d) whichdischarge their pulp into the grinding i)ans (<, <), of which there are two 30-STAMP SILVER MILL. 191 to each 10 heads of stamps. The product of 10 stamps passes throughtwo of the special grinding pans in succession, and is then conveyed bya suitable pipe to the first of a series of ten amalgamating pans (//)through which it passes in succession, and on into the line of four settlers,{g, g) from which the tailings flow to the Frue vanners (//, /i). On thesethe sulphides are concentrated, and any globules of amalgam which mayhave escaped the settlers are caught, so that when the tailings leave themill they are practically sterile. With some ores the concentrators arenot required. The pans are heated indirectly through their hollowbottoms by means of the exhaust steam from the engine (m), which issupplied from the boilers (/). The quicksilver is charged into the pans by means of pipes from the. Cross SectionFig. 259.—Section of a 3o-Stamp Silver Mill, Boss Continuous Process. distributing tank, and the amalgam flows through suitably arranged pipesto the strainer, the mercury being returned to the tank by means of anelevator (j). The amalgam is retorted in the furnace (k) and the bullionmelted into ingots. The chemicals are supplied by means of two chemical feeders, andsteam syphons are used for cleaning out the pans and for carrying thepulp past any one of them which it is necessary to cut out for main line of shafting runs directly under the pans and settlers, eachof which is driven from it by means of a friction clutch. This arrange-ment of separate clutches for each pan and settler is very convenient,as any number, or any one pan or settler, can be stopped in case ofaccident, or for cleaning purposes, without having to stop the whole line. Th
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Keywords: ., bookcentury1900, bookdecade1900, bookpublishernewyo, bookyear1902
