Ordinary Jaw Crusher
Lubrication of ordinary jaw crusher is usually attempted by one of several methods, such as grease, ring oiling or oil circulated by pump etc. Water jackets are frequently necessary to keep the larger bearing cool enough to run. These ordinary machines suffer from two grave defects. The first is small bearing area, insufficient to carry […]
KEU-KEN CRUSHER
YOUR NEXT JAW CRUSHER; WILL IT HAVE THESE FEATURES? Crushing Without Abrasion Perfect Balance Large Reduction Ratio Large Capacity Per Horsepower Sealed Dirt free Lubrication Simple Positive Safety Device LET’S see why it is impossible to balance ordinary crushers. BLAKE TYPE OVERHEAD ECCENTRIC TYPE KEU-KEN CRUSHER In the overhead eccentric type shown at the right […]
Gyratory Crusher Traylor Engineering
The first successful big gyratory crusher was a 60” Traylor and, incidentally, it was the first of a long line of Bulldogs that have revolutionized crushing. It was built more than twenty-five years ago and has since been followed by several others of the same size,- the latest being the strongest and most powerful crusher […]
Copper Rougher-Scavenger Flotation Grade-Recovery
A modal examination of the products produced by the copper flotation rougher-scavenger circuit reveal important information regarding the limits to the efficiency of the process, imposed by mineralogy, fragmentation and flotation capacity. Let’s discusses various aspects of rougher flotation circuit performance and how to evaluate its results . Prior to compositing the individual downbank rougher […]
Mineral Composition and Fragmentation
The metallurgical response of minerals during the flotation process are dependent upon two factors: The fragmentation of the minerals from each other during the grinding stage establishes the limits to process metallurgy The relative abundance of the different minerals in the ore sample dictates the complexity of the flowsheet design. Here we discus the mineral […]
Flotation Process Development and Assessment
At a mining operation, a project was designed and implemented to develop a process for controlling lead recovery in the flotation plant. The metallurgical program consisted of two parts: A survey of the current plant process streams was conducted first to assess the performance characteristics of the existing flowsheet and equipment. A comprehensive program of laboratory scale […]
Balance Chemical Torsion
BALANCE, Chemical, Torsion—Capacity, 4½ kg. or 10 pounds. Sensitiveness, 1/6 gram or 2½ grains. With nickel plated brass pans, 9 inches in diameter. Finished in black japan. Suitable for mortar mixes according to A. S. T. M. and Cement Reference Laboratory specifications. Beam graduated to 500 grams in 5-gram divisions. Beam graduated to 16 ounces in […]
Pulp and Bullion Balances and Scales
BALANCE, Pulp—For weighing ore, bullion and pulp samples, etc., for analysis. Rigidly constructed. Brass beam. Beam release of standard eccentric type. Gold plated steel knife edges and agate planes. Removable, nickel plated brass pans. Mounted on polished mahogany box with drawer which will accommodate the balance mechanism. With level and leveling screws. BALANCE, Pulp—For weighing ore, bullion and […]
Analytical Assays Balances
BALANCES, Assay, Keller Type 38—A high grade parts gold plated. SPECIFICATIONS: Capacity: 2 grams. Knife edges and bearings: Agate. Sensitiveness: 1/200 mg. Indicator deviates 2 in dex divisions, each 1/20 inch wide, with 1/10 mg. change of load. Releasing mechanism: Fall-away type. Smooth and gradual in operation. Period of oscillation: 11 seconds. Pans: Nickel silver, black interior. Beam: The […]
Effect of Feed on Crusher Performance
If the ore feed to any gyratory or jaw crusher consisted entirely of large cubes or spheres of a size that would just barely enter the crushing chamber, the crusher could not be expected to produce anything like its normal rated capacity because the upper part of the crusher could not shatter the large pieces […]