Disc centrifuges are widely used in processes such as degumming, soap removal, and water washing in continuous refining of vegetable oils, and are one of the ideal equipment in modern oil refining processes. At the same time, according to different user requirements, it is also suitable for the separation of liquid-liquid, liquid-solid and other materials with different densities in industries such as light industry, chemical industry, medicine, and food.

The working principle of a disc centrifuge is as follows:

By utilizing the principle that light, heavy, or solid phases with different densities and immiscible in a mixed solution (etching solution) are subjected to different centrifugal forces in a centrifugal field, resulting in different settling velocities, the separation and layering or settling of solid particles in the liquid can be achieved.

A disc centrifuge is a vertical centrifuge, with a drum mounted on the upper end of a vertical shaft and driven by an electric motor through a transmission device to rotate at high speed. There is a set of disk shaped components nested together inside the drum - discs. There is a small gap between the discs.

The separated mixed oil is smoothly and evenly fed into the inner drum of the machine's heart part. Under the strong centrifugal force field generated by high-speed operation, the mixed oil passes through a set of disc bundles in the separation interval, with the neutral pores of the discs as the interface. Heavy phases with higher specific gravity (such as phospholipids, soap feet, etc.) move along the disc wall towards the outside of the neutral pores, and heavy residue (such as sludge) accumulates in the sediment area, which is automatically discharged from the machine periodically. The light phase with a smaller specific gravity (such as grease) moves upward along the disc wall to the top of the drum, and is output to the next process by the light phase pump, while the heavy phase is discharged by the heavy phase pump.