Selection Guidelines for Vibrating Screens

Colman, K. G.
Organization: Society for Mining, Metallurgy & Exploration
Pages: 7
Publication Date: Jan 1, 1985
Introduction This text is intended to provide the operator and turnkey contractor with the basic data for sizing vibrating screens to be used in ore crushing plants. The basic capacities, modifying factors, etc.. used in the area requirement calculations were developed empirically and modified to their present values based upon years of practical applications. It must be pointed out that screening is much more of an art than an exact science; however. the information presented here should provide for reasonably accurate screen sizing when applied to many metallic ores. Types of Screens There are two types of screens which can be used for strictly sizing applications. These are two- and four-bearing screens; both are inclined circle-throw machines. Two-Bearing Screens The motion of a two-bearing screen is generated by unbalanced weights attached to the vibrator shaft. The body of the machine is usually supported by steel coil springs (see Fig. 8). The main advantage
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