Centrifuge overview and classification

Centrifuge is a high speed rotating equipment, through high-speed rotation to build a high-strength gravitational field to the doubling of settling velocity of water droplets, which can accelerate the separation of purpose. When the rotational speed of 3000rpm, an increase of about 5,000 times the acceleration of gravity can.

Centrifuge and hydrocyclone separation principle similar to, are relying on centrifugal force; but hydrocyclone itself is not rotating, but the fluid itself borrowed hydrocyclone geometry inside the spiral in motion, resulting in Shantou centrifugal force to separate the water.

The main principle of the filter centrifuge is to accelerate the liquid phase in the solid-liquid mixture to the drum by the centrifugal force generated by the high-speed centrifugal drum (with appropriate filter material), and leave the solid phase in the drum. , to achieve the effect of separating solids and liquids, or commonly known as dehydration.

The main principle of the decanter centrifuge is to accelerate the sedimentation velocity of different specific gravity components (solid phase or liquid phase) in the mixture by the powerful centrifugal force generated by the high-speed rotation of the rotor, and to separate the different sedimentation coefficients and buoyant density substances in the sample.

Centrifuges are used in a wide range of applications in mineral processing, coal, water treatment and shipping.

The centrifuge should be selected based on the size and concentration of solid particles in the suspension (or emulsion), the difference in density between the solid and liquid (or both liquids), the viscosity of the liquid, and the characteristics of the filter residue (or sediment).

Dewatering centrifuge for the actual production of crude oil, little experience, but the small sand dewatering centrifuge for the diesel we are not unfamiliar. The current scale of production and a certain practice has been used to produce large-scale centrifuge manufacturers, only one in the international arena, the United States AlfaLaval, the company producing the centrifuges at the plant in a Canadian synthetic crude oil for oil off the sand and with dehydration, has been 20 years experience in the application; American Phillips company also useful for dealing with the production of the brand's successful water centrifuge experience.

Centrifuge generally under atmospheric pressure operation, the operation temperature is not higher than the boiling point of water, generally between 90 degrees -95 degrees to ensure that gas does not exceed 10% (V).