Jaw Crusher Liner Plate Design & Profile Shapes
Straight Jaw Plates: A shows a diagram of a standard type of Blake crusher with regular or straight jaw plates. This type of plate has been the standard from the time of its inception, emulating, in this respect, the straight concaves in the gyratory machine. And it will be noted that the theoretical action in this straight-plate […]
Analytical Balance Weights
WEIGHTS, Students’ Analytical—Brass weights are tall form, slightly conical, with fractionals of aluminum under glass cover. They are fitted in a well polished hardwood box, mahogany finished with hinged cover, velvet lined. Each set is supplied with a pair of forceps and with one each 5 mg. and 10 mg. aluminum rider. WEIGHTS, Semi-Analytical—Adapted for student use […]
Gyratory Crusher Concaves
Concaves on the right illustrate the cross section of a typical gyratory crusher, while the left illustrates the same crushing chamber, except that, in place of the straight-face concave, the non-choking type has been substituted. For the sake of direct comparison we have shown the same discharge setting in both diagrams, although a closer setting would be permissible […]
Iron in Cyanidation -Ferrocyanide Compounds
Practically all ores treated by the cyanidation process contain iron minerals. In addition, the equipment in cyanidation plants with which cyanide solutions come in contact is made largely of iron and steel. Fortunately, cyanide solutions have very little action on metallic iron and most iron minerals, otherwise the cyanidation process would be impractical for die […]
Prospecting Kits, Plates and Platinum Tools
PLATE, Color, Porcelain—Glazed with exception of bottom surface. Length, 109 mm. ; width, 89 mm, ; thickness 12 mm. ; number of depressions, 12 ; diameter of depressions, 20 mm. ; depth of depressions, 7.5 mm. PLATE, Porous—Dinner plate shape. For drying precipitates and crystals. PLATE, Streak, Porcelain—Unglazed. Used by mineralogists and for arsenic tests. Platinum Ware […]
Copper Flotation Cleaner Grade – Recovery Results
To facilitate the presentation of the modal data, the cleaner circuit of this case concentrator was separated into three operations. The first cleaner circuit, which includes the cleaner-scavenger bank is discussed first, this is followed by a discussion of the operation of the column cleaner circuit. Finally, an analysis of the overall cleaner circuit operation is […]
Copper Precipitation & Cementation using Scrap Iron
In the search for lower cost methods of recovering copper, the use of sponge iron or particulate iron (as distinguished from iron powder used in powder metallurgy) as precipitants in place of tin cans, detinned scrap iron, or scrap iron is an intriguing possibility. The relatively faster copper precipitation rate obtained with particulate iron as […]
Rock Crusher History
History tells us, it was in 1830, the first US patent was issued on a rock crushing machine. It covered a device which, in a crude way, incorporated the drop hammer principle later used in the famous stamp mill, whose history is so intimately linked with that of the golden age of mining. In 1840, another patent was […]
Laboratory Oven Tray
TRAY, Button—For use inside of balance case in weighing silver buttons. Composition, with 24 semi-spherical depressions 3/8 inch diameter, numbered 1 to 24. Tray measures 5×3¼x¼ inches. TRAY—Fire clay, for handling annealing cups in muffles. Reinforced handle. Measures 8×4¾ inches. TRAY, Parting Cup—Made of sheet iron with twelve 1 inch holes. Dimensions, 5¾x8 inches. Will […]
Laboratory Calipers
CALIPERS, Micrometer—Measures up to 25 mm. by 1/100 mm. An inexpensive, yet accurate instrument. With ratchet stop.. CALIPERS, Vernier Sliding—Nickel plated steel. For inside and outside measurements. Slide 10 cm. long, graduated in mm. with vernier to read to 1/10 mm. CASSEROLE, Porcelain, Coors—With lip and flat porcelain handle. Glazed inside and outside with exception of rim. Source Technology […]