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The working principle and viscosity requirements of solid liquid separation centrifuge Aug 29, 2018

The solid liquid separation centrifuge is mainly operated by centrifugal force, which is a machine for liquid and solid particles or a mixture of liquid and liquid. The separation centrifuge has a cylinder that rotates at a high speed about its own axis, called a drum, which is usually driven by an electric motor. After the suspension (or emulsion) participates in the drum, it is agilely driven to rotate at the same speed as the drum, and the components are separated under the action of centrifugal force, and the discharge is discriminated.

The working principle of the solid liquid separation centrifuge is centrifugal filtration and centrifugal sedimentation. The centrifugal filtration can make the centrifugal pressure of the suspension under the centrifugal force field, and can be filtered on the medium during the operation, so that the liquid can pass through the liquid. The filter medium is called filtrate, and the solid particles are trapped on the surface of the filter medium to achieve liquid-solid separation. The centrifugal sedimentation is the application of the suspension (or emulsion) density of each component in the centrifugal force field. The principle is to achieve liquid-solid (or liquid-liquid) separation.

In the solid liquid separation centrifuge, the denser object is below, and the object with lower density is on. When the suspension containing fine particles is still in operation, the suspended particles will gradually become due to the action of the gravity field. sink. The heavier the particles, the faster the sinking, whereas the particles with a lower density than the liquid will float. The rate at which particles move under the gravitational field is related to the size, morphology, and density of the particles, and is related to the strength of the gravitational field and the viscosity of the liquid. Particles of the size of red blood cells, a few micrometers in diameter, can be observed under normal gravity.

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