The three-foot centrifuge is a filter centrifuge for upper discharge and intermittent operation. It is suitable to separate the suspended liquid containing solid phase particles of 0.01 mm, and the solid particles can be granular, crystalline or fibrous, and also can be used for the dehydration of objects (such as yarn bundles, textiles, etc.). The series centrifuge has a simple structure, convenient operation, and can be adjusted according to the requirements. The filter residue can be fully washed, the solid phase particles are not damaged easily and the adaptability is strong. Widely used in chemical industry, light industry, food, pharmaceutical, textile, metallurgy and other industries.

Natural stratification occurs when mixed liquid with different densities will appear, and the solid will generally settle down to the bottom layer, while the upper layer will form the clarified liquid. Some of them are easy to stratify, such as muddy water, and others that take a long time to stratify and not work well. Stratified by the earth's gravitational acceleration, in order to meet the needs of industrial production, people need to be faster and more separation of certain mixture, so was born the centrifuges, centrifuge through high-speed rotation, produce strong centrifugal force, the centrifugal separation coefficient is usually one hundred times the gravitational acceleration, thousands of times, thousands of times, so the separation is very fast, but due to the different material properties difference is very big, so formed a variety of different specifications of the centrifuge, generally solid and liquid separation centrifuge speed below 3000 RPM, finer particles, smaller density difference of mixture requires speed centrifuge separation between 8000 ~ 30000, and as the enrichment of uranium separation requires higher rotating speed of centrifuge.