Concentrating Tables and Density Separators

Concentrating tables and density separators separate bulk materials or minerals based on the density (specific gravity), size and shape of their particles. Devices that fall within the classification of concentrating tables and density separators include jigs or jigging equipment, hindered-bed settling devices, shaking table, spiral concentrators, concentrating or wet tables, hydraulic concentrating tables, constriction plate separators or specialized settling vessels. These devices typically use the flow of water is combination with a riffled table, screen and/or bed of particulate material. In some of these devices, as feed enters the top of the separator, particles encounter an upward flow of fluidizing "teeter water" which is introduced at the base of the cell. The teetering or jigging water fluidizes the smaller or lighter particles. Most concentrating tables and density separators are hydraulic or water-based, although pneumatic or air-based systems are also available.