Description
2 Phase Decanter Centrifuges Description
The machine starts and speeds up automatically.When the proper working condition are met and the revolving drum reaches the feeding speed,the feeding valve opens and allows suspension which will be separated to enter into the product compartment of the spiral feeder through the feeding pipe.After the preliminary speed-up,the suspension passes the outlet of compartment and into the drum.Because of centrifugal force,the suspension in the drum is quickly divided into two phases;the heavier solid phase deposits to the inner wall of the drum and driven by the differential gear which results in the non-cynchronous movement between the spiral feeder and the drum.the solid phase will be transferred into the small end for further dehydration and finally discharged through solid phase outlet.The separated liquid flows out though the big end or will be driven out by centrifugal pump.
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
The machine can operate with a higher throughput capacity than smaller machines.[5] This also reduces the number of units required
The device is simple to optimise and operate as it has few major variables and reliable feedback information.
The decanter centrifuge has reduced labour costs compared to other processes, as it requires low continuous maintenance and operator attention.
Compared to some competitive process such as the belt filter process, the decanter centrifuge has more process flexibility and higher levels of performance.
2 Phase Decanter Centrifuges Application
City tap water, domestic sludge dewatering;
Oil drilling mud dewatering;
Sludge Oil Recovery;
Refinery sludge concentrated dehydration;
Distiller's grains dehydration;
Paper, printing and dyeing wastewater separation;
Medical sludge dewatering;
Soy protein dehydration;
Plant oil clarification and separation;
Cosmetic clarification and separation;
Bleaching powder separation.
