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How Does A Centrifuge Work?

How centrifugal fuel and oil purifiers work.

 
Gravity separation (such as in a settling tank) causes solids such as sludge and dirt to settle at the bottom of the tank. Heavier liquids, such as water, will settle out above the solids and the lighter liquids, such as oil, will be at the top of the tank. The application of heat will speed up the separation process.
 
Separation occurs due to the differences in specific gravities (density) of the liquids and solids.  Heavier denser materials settle at the bottom, lighter less dense materials at the top.
 
how do high speed vertical centrifugal purifiers work
 
As mentioned, gravity is responsible for the separating and this takes quite a while. If the gravitational force is increased, by using centrifugal force, the separation effect is much greater. This is shown in figure below.  Imagine a settling tank on its side and rotated.
 
how do centrifugal purifiers work
 
The high speed vertical centrifugal separator consists of a bowl containing a set of discs stacked one on top of the other. The dirty oil flows down the distributor and up through the holes in the discs. 
 
how do vertical centrifugal purifiers work
 
After separation of the water and particles you must remove them from the machine.  Water is easy as it can flow to waste.  There are two types of machines for the sludge waste.  Self cleaning centrifugal purifiers and manual cleaning centrifugal purifiers.  The manual cleaning purifiers require periodic stop - open - clean.  The self cleaning purifiers cycle through a cleaning process.  
 


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