The decanter centrifuge is for continuous separation of liquid-solid systems consisting
of liquid and solids. Stock liquid is brought into the bowl through a centripetal pump.
Solid matter settles into outer larger by the centrifugal force. The settled sediment is pushed
into the drying area at the cone of the bowl by rotary difference between spiral and bow land
discharged from the outlet. The liquid phase flow out from the liquid outlet.
The drum and scroll conveyor are made of stainless steel and titanium resisting corrosion.
The scroll conveyor was coated with wearable alloy or welded with alloy plate.
Stepless speed regulation for the bowl. Step or stepless speed regulation for scroll's differential
speed. Simple lubrication. Safety protection: rotation rate detection over, vibration protection,
motor overload and overheat protection, protection for scroll when zero differential speed occurs.
For the highly sticky materials, it can add the hydraulic differential gear to stabilize.
The centrifuge is a specially developed continuous Solid-Bowl horizontal Scroll
Discharge centrifuge for effective separation of slurries into liquid-solid phases/liquid-liquid-solid
phases, with the application of centrifugal sedimentation principle.
A decanter centrifuge separates solids from one or two liquid phases in one single continuous
process. This is done using centrifugal forces that can be well beyond 3000 times greater than
gravity. When subject to such forces, the denser solid particles are pressed outwards against the
rotating bowl wall, while the less dense liquid phaseforms a concentric inner layer. Different dam
plates are used to vary the depth of the liquid the so-called pond as required. The sediment
formed by the solid particles is continuously removed by the screw conveyor, which rotates at a
different speed than the bowl. As a result, the solids are gradually "ploughed" out of the pond and
up the conical "beach". The centrifugal force compacts the solids and expels the surplus liquid. The
dried solids then discharge from the bowl. The clarified liquid phase or phases overflow the dam
plates situated at the opposite end of the bowl. Baffles within the centrifuge casing direct the
separated phases into the correct flow path and prevent any risk of coss-contamination.
The speed of the screw conveyor may be automatically adjusted by use of the variable
frequency drive in order to adjust to variation in the solids load.
Technical Parameters
Models | Basket | Separation Factor (ω2.r/g ) | Motor Power (kw ) | Weight(kg) | Dimensions | ||
Diameter | Length (mm) | Speed (r/min) | |||||
220×660 | 220 | 660 | 4800 | 2840 | 7.5-11 | 900 | 1650×1150×700 |
220×880 | 220 | 880 | 4300 | 2280 | 7.5-11 | 1000 | 1850×200×750 |
300×900 | 300 | 900 | 3750 | 2370 | 11-15 | 1300 | 1850×1300×650 |
300×1140 | 300 | 1140 | 3750 | 2370 | 11-15 | 1500 | 2100×1300×650 |
350×1050 | 350 | 1050 | 3700 | 2690 | 15 | 1700 | 2700×1100×1100 |
350×1420 | 350 | 1420 | 3700 | 2690 | 15-18.5 | 2000 | 3000×1100×1100 |
400×1200 | 400 | 1200 | 3500 | 2750 | 18.5-22 | 2500 | 2400×1650×900 |
400×1600 | 400 | 1600 | 3200 | 2300 | 22-30 | 2800 | 2800×1650×900 |
450×1440 | 450 | 1440 | 3000 | 270 | 22-30 | 3200 | 2800×1650×1100 |
500×1600 | 500 | 1600 | 2800 | 2200 | 30-37 | 4000 | 3250×1800×1300 |
500×2000 | 500 | 2000 | 2800 | 2200 | 45-55 | 4800 | 3650×1800×1300 |
530×2000 | 530 | 2000 | 2700 | 2170 | 45-55 | 5200 | 3800×1950×1400 |