A centrifuge is a machine that uses centrifugal force to separate components from liquid and solid particles or a mixture of liquid and liquid. Centrifuges are mainly used to separate solid particles from liquids in suspensions, or to separate two liquids of different densities in emulsions that are incompatible with each other (such as separating cream from milk); it can also be used to remove Liquids in wet solids, such as washing clothes to dry clothes with a washing machine; special ultra-speed tube separators can also separate gas mixtures of different densities; using solid particles of different densities or particle sizes with different sedimentation speeds in the liquid Centrifuges can also classify solid particles by density or particle size.
According to the separation factor Fr value The centrifuge can be divided into the following types: 1.Normal speed centrifuge Fr ≤ 3500 (generally 600 ~ 1200), this kind of centrifuge has low speed and large diameter. 2.High-speed centrifuge Fr = 3500 ~ 50000, this kind of centrifuge has a high speed. Generally, the diameter of the drum is small and the length is long. 3.Ultra high speed centrifuge Fr> 50000, because the rotation speed is very high (more than 50000r / min), the drum is made into a slender tube type.
Divided by operation method The centrifuge can be divided into the following types: 1.Gap centrifuge Its feeding, separation, washing and slag discharge operations are all gap operations, and manual, gravity or mechanical methods are used to remove slag, such as three-legged and top-suspended centrifuges. 2.Continuous centrifuge The feeding, separation, washing, and slag discharge processes can be performed automatically with gaps and continuously.
Divided by slag discharge method The centrifuge can be divided into the following types: 1.Scraper discharge centrifuge The process is indirect and the operation is automatic. 2.Piston pusher centrifuge The process is semi-continuous and the operation is automatic. 3.Screw unloading centrifuge The process is continuous and the operation is automatic. 4.Centrifugal unloading centrifuge The process is continuous and the operation is automatic. 5.Vibration discharge centrifuge The process is continuous and the operation is automatic. 6.Turn the unloading centrifuge The process is continuous and the operation is automatic.
According to process use Centrifuges can be divided into: filter centrifuges, sedimentation centrifuges.
Divided by the way of installation It can also be divided into vertical, horizontal, inclined, overhang, and three-legged.
Divided by 1.Sedimentation centrifuge 2.filter centrifuge
This machine separates the solid phase impurities in the liquid to achieve the effect of clarification. It is used to separate various suspensions that are difficult to separate. It is especially suitable for solid-liquid separation with small concentration and high viscosity, fine solid particles, and low solid-liquid gravity. The solid phase should be removed after shutdown. The main disadvantage of tubular centrifuges is intermittent operation. The drum volume is small. Shut down frequently to remove sediment. Therefore, it is necessary to strengthen the separation performance of tubular centrifuges by strengthening the study of separation theory and centrifugation process.
A centrifuge is a machine that uses centrifugal force to accelerate the separation of different materials that need to be separated. Centrifuges are widely used in chemical, petroleum, food, pharmaceutical, mineral processing, coal, water treatment and shipbuilding sectors.