Description
2 Phase Decanter Centrifuges Description
The feed product is pumped into the decanter centrifuge through an inlet. Feed into a horizontal bowl and then rotate. The bowl consists of a cylindrical portion and a conical portion. The separation takes place in the cylindrical part of the bowl. Fast rotation produces centrifugal forces of up to 4000 x g. Under these forces, solid particles with a higher density are collected and compacted on the wall of the bowl. The scroll (also a screw conveyor or screw conveyor) rotates inside the bowl at slightly different speeds. This speed difference is called a differential speed. In this way, the scroll conveys the precipitated particles along the cylindrical portion of the bowl to the conical end of the bowl. At the smallest end of the conical portion of the filter bowl, dehydrated solids leave the filter bowl through the discharge port. The clarified liquid exits through the mating disc (internal centrifugal pump).
Typical applications of 3-phase separation are the production of edible oils such as olive oil, oil sludge processing, the production of biodiesel.
2 Phase Decanter Centrifuges Model
| Model |
Drum diameter mm |
Length mm |
Maximum speed rpm |
Hightest separation factor g |
Mixture capacity m3/h |
Motor Power Kw |
| LW250-900 | 250 | 900 | 5000 | 3500 | 0.5-3 | 11/5.5 |
| LW350-1500 | 350 | 1500 | 3800 | 2850 | 1-5 | 18.5/5.5 |
| LW400-1200 | 400 | 1200 | 3400 | 2581 | 1-8 | 22/7.5 |
| LW400-1600 | 400 | 1600 | 3400 | 2581 | 2-10 | 22/7.5 |
| LW400-1800 | 400 | 1800 | 3400 | 2581 | 2-12 | 22/7.5 |
| LW450-1800 | 450 | 1800 | 3200 | 2572 | 5-20 | 30/7.5 |
| LW450-2000 | 450 | 2000 | 3200 | 2572 | 5-25 | 30/7.5 |
| LW530-2280 | 530 | 2280 | 2800 | 2350 | 10-50 | 45/15 |
| LW600-2400 | 600 | 2400 | 2600 | 2265 | 15-65 | 55/18.5 |
| LW650-2600 | 650 | 2600 | 2400 | 2100 | 20-80 | 55/90 |
| LW720-2500 | 720 | 2500 | 2200 | 1950 | 25-90 | 75/90 |
| LW800-2560 | 800 | 2560 | 2000 | 1800 | 30-100 | 90/132 |
| LW800-3200 | 800 | 3200 | 2000 | 1800 | 30-110 | 90/132 |
| LW900-3200 | 800 | 3200 | 1800 | 1650 | 30-150 | 132/200 |
2 Phase Decanter Centrifuges Technical
All contact parts can be made by SS304/SS316L/Duplex Steel 2205 Automatic adjustment of differential speed via VFD,Siemens PLC Spiral : Surfacing welding tungsten carbide grinding
Two motor drive
Approximately 80 to 90% of the oil is recovered.
Low labor costs due to continuous and automatic operation.
Highest g-force for higher solids output
Belts for both primary motor and secondary
NSK/SKF Bearing
2 Phase Decanter Centrifuges Features
Decanter centrifuges have a clean appearance and have little to no odour problems.
Not only is the device easy to install and fast at starting up and shutting down but also only requires a small area for operation compared to other competitive processes.
The decanter centrifuge is versatile as different lengths of the cylindrical bowl section and the cone angle can be selected for different applications.
Also, the system can be pre-programmed with various design curves to predict the sludge type, while some competitive processes, such as a belt filter press, cannot change the belt type to operate for different sludge types.[4] Its versatility allows the machine to have various functions such as operating for thickening or dewatering.
2 Phase Decanter Centrifuges Application
Paper sludge
Weather desulfurization sludge
Power plant sludge
Activated sludge
Ammonia sludge
Car wash sludge
Sludge drilling mud
Coal flotation waste
Cryolite flotation liquid
