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Decanter centrifuge working principle

Jun 08, 2017

Decanter centrifuge working principle Decanter centrifuge is a horizontal spiral discharge, continuous operation of the settlement equipment. Decanter centrifuge working principle: drum and spiral to a certain differential with the same high-speed rotation, the material from the feed pipe into the continuous feeding screw inner tube, accelerated into the drum, under the action of centrifugal force field, the heavier solid The phase is deposited on the drum wall to form a sediment layer. 

Feeding the spiral to the deposited solid phase continuously pushed to the drum cone end, through the slag discharge mouth outside the machine. The lighter liquid phase is formed into the inner liquid ring, which is continuously overflowed from the big overflow of the drum and discharged through the discharge port. Three-phase decanter centrifuge principle is solid-liquid three-phase separation, usually we say that the oil-water residue three-phase separation, so that a three-phase decanter centrifuge can be a one-time separation of three materials. In the past, two two-phase decanter centrifuge, a solid-liquid separation, the first slag, another liquid separation, and then dehydration, so that the production mode cumbersome, and later gradually three-phase decanter centrifuge oil and water slag three Separation, when the separation of the suspension into the drum through the feed tube, the high-speed rotation of the drum to produce a strong centrifugal force than the liquid phase density of solid particles settling to the drum wall, the screw and drum speed Different, there is a relative movement (ie, speed difference), the density of solid (tar) sink to the drum wall.