2. Working principle of three-phase separating decanter centrifuge

The two-phase separating decanter decanter centrifuge is composed of base, hood, main bearing, rotating drum, screw, differential, drive system and control system. The rotating drum and the spiral rotate at the same direction and high speed at a differential speed, and the material enters the spiral inner cylinder through the feeding pipe and enters the rotating drum from the feeding port. Under the action of centrifugal force, heavier solid materials are deposited on the drum wall to form a slag layer. The spirally pushed solid materials are continuously pushed to the cone end of the drum and discharged out of the machine through the slag discharge port. The lighter liquid materials form the inner liquid ring, which overflows the drum continuously from the overflow port of the large end of the drum and is discharged out of the machine through the liquid discharge port.

The three-phase decanter decanter centrifuge is mainly used for solid-liquid-liquid separation, that is, to separate one solid phase (the highest density) and two liquid phases with different densities. The rotating drum and the spiral rotate at the same direction and high speed at a differential speed, and the material enters the spiral inner cylinder through the feeding pipe and enters the rotating drum from the feeding port. Under the action of centrifugal force, the solid phase materials are deposited on the drum wall to form a sediment layer. The two liquid phase materials form a light liquid ring and a heavy liquid ring respectively, and the solid phase layer and heavy liquid are in turn from the drum wall inward. Phase layer and light liquid layer. The screw continuously pushes the solid materials deposited on the drum wall to the cone end of the drum and discharges it out of the machine through the slag discharge port. The light liquid phase and the heavy liquid phase continuously overflow from different overflow ports at the big end of the drum. Thereby achieving three-phase separation.

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