Centrifugation is the use of a powerful centrifugal force generated by the high-speed rotation of the centrifuge rotor to accelerate the sedimentation velocity of the particles in the liquid, separating the sedimentation coefficients and buoyancy-density materials in the sample. Therefore, it is necessary to use a centrifugal machine to generate a strong centrifugal force in order to force these particles to overcome the diffusion to produce a settling motion.
A centrifuge is a machine that uses centrifugal force to separate liquid and solid particles or components of a mixture of liquid and liquid. The centrifuge is mainly used to separate the solid particles in the suspension from the liquid; or to separate the two liquids of different density and incompatible liquid in the emulsion (for example, a cream centrifuge that separates the cream from the milk); It can also be used to remove liquids from wet solids, such as washing clothes with a washing machine; special ultra-speed tubular separators can also separate gas mixtures of different densities; using different density or particle size of solid particles to set different speeds in liquids Some sedimentation centrifuges can also classify solid particles by density or particle size.
Centrifuges are widely used in chemical, petroleum, food, pharmaceutical, mineral processing, coal, water treatment and shipbuilding sectors.
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).
price
The difference between the domestic centrifuge and the imported centrifuge is not very large, and the core technology of the centrifuge has been supported in China. The price difference between centrifuges of the same grade is not very large, mainly in terms of performance and configuration.
The difference between the mainframes is that in terms of performance, centrifuges with refrigeration are much more expensive than ordinary ones, and some centrifuges also have heating functions. The more control programs, the higher the price of the centrifuge. The big difference is the configuration aspect, and sometimes the price of the attachment is often higher than the price of the host. When purchasing, be careful to select the rotor (quantity and type), in addition to the main unit, plus the necessary centrifuge tubes, sleeves, special centrifuge bottles or blood bags, all of which add up to a complete centrifuge. price.
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