There are a lot of indicators that affect the index of floating concentrates, such as grinding fineness, flotation reagent system, flotation time and inflating volume. In order to ensure the optimum value of these indicators, the reference of the flotation technology of the same kind of ores and plentiful of flotation experiments is needed in designing flotation processes.
Most flotation experiments are carried out in the single laboratory flotation cell. Although there are big differences in the structure and capacity of the single laboratory flotation cell and industrial production flotation cell, the basic requirements are consistent.
The single laboratory flotation cell is made up of scaffold, dynamo, rotating device, scraping bubble device, flotation cell, flotation cell locking devices, transmission device with belt pulley and worm gear reducer. During the flotation experiment, the rotation of impeller driven by the rotating device, the impeller not only to stir the pulp to make it mix uniformity with pulp, reagent, and bubbles, and it intakes air through throwaway surrounding slurry to form negative pressure at its center, therefore, the rotating speed of impeller is fast, which requires the impeller and the cover plate of flotation machine has high abrasion performance.
Different minerals and different flotation processes have different inflating volume, The single laboratory flotation cell should have the function to continuously adjust it according to the demand. The single laboratory flotation cell should be capable of forming a stable foam layer with a certain thickness to get the reliable laboratory result, which not only can reduce the small fluctuations of laboratory results affected by time, but can improve the grade of foam products through the second enrichment of the reliable bubble layer. In addition, the single laboratory flotation cell must be characterized by simple structure, easy operation, easy adjusting index of flotation indicators, and easy inspection and maintenance, etc.
The single laboratory flotation cell is the common device in mineral processing laboratory, usually is used in the flotation experiments of ferrous metals, nonferrous metals, non-metallic minerals, usually the capacity of its flotation tank is 1.5 ~ 8L, which has the functions of agitation, air inflation, g adsorption of a slurry.