What is the working principle of a centrifuge

What is a centrifuge

A centrifuge is a device that can separate substances from the mixtures. In the centrifuge, materials get rotated around a fixed axis by the centrifugal power. A centrifuge can be used in industrial field, chemical field and some other fields. There are several different types of centrifuges, such as industrial centrifuge, haematicrit centrifuge, mini centrifuge and other types of centrifuge.

centrifuge
centrifuge

What is the working principle of a centrifuge

The working principle of a centrifuge is to use sedimentation principle, which means to move substances outward in the radial direction through the centrifugal acceleration. Because different kinds of substances have different acceleration speeds, they will have different movement trails.

What is the process of centrifugation

In the process of centrifugation, the materials get rotated powered by the centrifugal power and substances within the materials will have different acceleration speeds, which means substances will get different movement trails. Under the same centrifugal power, different kinds of substances have different sedimentation coefficient. Therefore, some kinds of substances get moved outward. What’s more, different coefficients means substances fall at different time. And that is the process of centrifugation and how different kinds of substances get separated.

centrifuge
centrifuge

 How does it work

The powerful centrifugal force generated by the high-speed rotation of the centrifuge rotor accelerates the sedimentation speed of the particles in the liquid, and separates the substances with different sedimentation coefficients and buoyancy density in the sample.

When the suspension containing fine particles is standing still, the suspended particles gradually sink due to the action of the gravity field. The heavier the particles are, the faster they sink, otherwise particles with a lower density than the liquid will float up.

centrifuge
centrifuge

What are the different types of centrifuge

The centrifuge can be divided into the following du types according to the separation factor bai Fr value: constant speed centrifuge, high speed centrifuge and ultra high speed centrifuge. According to the operation mode, the centrifuge can be divided into the following types: gap centrifuge and continuous centrifuge.According to the slag discharge method, the centrifuge can be divided into the following types: scraper discharge centrifuge, piston push centrifuge, spiral discharge centrifuge, centrifugal force discharge centrifuge, vibratory discharge centrifuge and turbulent discharge centrifuge.

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