What is a Disc Centrifuge

Solid Liquid Separator August 6, 2024 Centrifuge

I. Basic Principle

A disc centrifuge is a type of vertical centrifuge, where the drum is mounted on the upper end of a vertical shaft and driven by a motor through a transmission mechanism to rotate at high speed. Inside the drum, there is a set of disc-shaped components—discs—that are stacked together.

The feed liquid enters the top of the hollow shaft and moves to the bottom, then distributes through vertical channels on the discs into the gaps between adjacent discs. Under the action of centrifugal force, the heavier liquid moves outward to the inner wall of the drum and is discharged through the heavy liquid outlet, while the lighter liquid moves towards the center and is discharged through the light liquid outlet.

II. Basic Structure

The drum contains several inverted conical discs with cone angles ranging from 60° to 100°. Each disc has circular holes that form vertical channels, and the distance between the discs is generally 0.5-2.5mm.

III. Application Range

Disc centrifuges are suitable for separating emulsion liquids and suspensions with very few particles. They are widely used in the production of traditional Chinese medicine to remove impurities from decoction liquids, thereby improving the quality of the medicinal juice.