Two Phase sludge Dewaterring Wastewater Treatment Centrifuge
Decanter Centrifuge Applies in Municipal Sewage Treatment
The excess sludge from the sludge storage tank (primary and
secondary sedimentation) is pulverized by a sludge cutter to smash
the glass, the braid and the like. The sludge pump sends the sludge
(concentration 0.5~4%, higher) into the centrifuge, and the
automatic flocculant dosing device for continuous batching is added
to the mud pipeline through the dosing pump (concentration 1 ~ 3 ‰)
flocculant solution, and flocculation in the vicinity of the feed
tube, into a floc into the centrifuge. The dehydrated mud cake is
discharged from the rotating drum by a screw conveyor, and the mud
cake is discharged to the outside through a screw conveyor.
The dehydration system is widely used in oxidation ditch, AB, A/O,
A2/O, SBR, MBR and other processes as well as urban domestic
sewage, municipal sewage, landfill leachate, urban tap water,
purified water and some industries required by traditional sewage
treatment processes.
For water purification plants and sewage treatment plants,
high-performance centrifuges for water treatment are an ideal
solution. They are highly adaptable to sludge and have greater
processing capacity at low concentrations (SS 0.5), it is not
necessary to equip the concentrator, and the dehydration function
can be realized, which satisfies the requirements of the process
for integration of concentration and dehydration. The unique
centrifuge structure, advanced control system, and standardized
design of ZK separation decanter centrifuge take into account the
user's later operating costs (pharmaceutical consumption, power
loss, and routine maintenance of the equipment, etc.).
Featurers:
1. Water content in dewatered solids: 65%-81%
2. Solids content in liquid after separation: lower than 0.05~0.2%
3. Solids recycle rate: no less than 85%~98%
4. Chemical consumption per ton dry solids: 1~5kg/TDS
Our Centrifuge Application Scope: chemistry; pharmacy; biotechnolog; food and beverage industry; animal fat and regenerative fuels; wastewater; oil sludge; phytoextraction, extraction,
With the XBSY/WP decanter centrifuges, two liquids with different
specific gravities can be individually separated from solids.
Solid-liquids are separated in the liquid phase zone and are
decanted and discharged from the Solid bowl to prevent cross
contamination. There is generally is discharged under pressure and
which by big gravity . The adjustment during the operation of the
centrifuge ensures maximum purity of both liquid phases, thus often
removing the additional downstream separation machine.
Water Treatment field
The impurities such as glass and braids in the biochemical sludge
from the sludge tank is pulverized and removed. The sludge pump
sends the sludge (concentration 0.5~4% or higher) into the
centrifuge, and the fully automatic flocculant dosing device adds
continuously PAM flocculant solution (concentration 1~3‰) into the
feed pipe through the dosing pump for flocculation in the feed pipe
and in the vicinity to produce flocculus to be sent into the
centrifuge. The dehydrated mud cake is discharged from the drum by
a centrifuge, and transported to the outside through the screw
conveyor.
Two-phase centrifuge model and technical parameters
| Item | Centrifuge model |
| LW250×1025E | LW350×1435E | LW450×1845E | LW520×2150E | LW580×2400E | LW650×2600E | LW750×2800E |
m3/h
Throughput m3/h |
Solid content
SS(W/W) | 0.8-1% | 5~8 | 10-15 | 35-40 | 60-70 | 70-80 | 80-90 | 90-100 |
| 1-2% | 3~5 | 8~10 | 30-35 | 40-60 | 60-70 | 70-80 | 80-90 |
| 2-4% | 2~3 | 5 ~ 8 | 15-30 | 20-40 | 30-60 | 40-70 | 50-80 |
| 4-5% | 2 | 4~5 | 10-15 | 15-20 | 25-30 | 30-40 | 40-50 |
(mm)
Drum diameter (mm) | 250 | 350 | 450 | 520 | 580 | 650 | 750 |
(mm)
Length-diameter ratio (mm) | 4.1 | 4.1 | 4.1 | 4.1 | 4.1 | 4 | 3.7 |
(rpm)
Speed (rpm) | 4500 | 3500 | 3200 | 3000 | 2800 | 2600 | 2200 |
| Designed separation factor | 2835 | 2435 | 2580 | 2620 | 2546 | 2460 | 2033 |
| (rpm)Differential speed (rpm) | 1~50 | 1-35 | 1~34 | 1~34 | 1~30 | 1~28 | 1~28 |
(Nm)
Differential maximum torque (Nm) | 1500 | 2500 | 5000 | 8000 | 12000 | 16000 | 20000 |
(kW )
Main motor power (kW) | 11 | 15 〜22 | 30-37 | 55-75 | 75-90 | 90-110 | 110 ~160 |
(kW )
Ancillary motor power (kW) | 4 | 5.5 | 7.5-11 | 11-15 | 15-18.5 | 22 | 30 |
(mm)
Total length (mm) | 2500 | 3700 | 4300 | 5100 | 5520 | 6250 | 6500 |
(mm)
Width (mm) | 800 | 1050 | 1150 | 1250 | 1450 | 2000 | 2200 |
(mm)
Height (mm) | 1150 | 1200 | 1450 | 1600 | 1700 | 1550 | 1600 |
(kg )
Total weight (kg) | 1250 | 2500 | 4200 | 5200 | 6500 | 7800 | 11000 |
The length dimension varies with motor power.
