Procedure of dewatering machine
1. The sludge are transported to the flocculation tank through storage tank, and adequately
mixed by the mixer.
2. After big flocs are formed, the sewage is transported to the MDS screw press.
3. Flocs moves from the thickening zone to the dewatering zone.
4. Gaps between moving rings and fixed rings narrows, and the pressure of the end plate
increases dewatering,finally the sludge cake is discharged.
5. The sludge is transported out by shaftless screw conveyor.
Advantage
1. One-in-all design, fits in small facility
Multi-plate Screw Press adopted the unified structure that serves two functions, thickening
and dewatering in the single machinery. The drum filter, because of the clog-free, realizes
higher speed of filtering phenomena per filtering area as compared to other methods. For this
reason, low concentration sludge of about Total Solids 0.2%, as well as thickened sludge, can
be directly fed without pre-thickening.
2. Wide range of line-up/Small footprint
The model of sludge dewatering press based on the customer needs can be selected from a
wide range of line-up, and can be installed in places where placement would not be possible
with other technologies for reasons such as low building ceilings or limited area. This makes
Multi-plate Screw Press suitable to customers who are considering the replacement of existing
dewatering equipment.
3. Easy operation/Easy maintenance
Full automatic 24-hour operation without an operator on-site is possible with automatic
operation control using various sensors. With this function, manual operation, such as starting
or stopping, is not required. Moreover, daily maintenance is minimized, requires no skilled
labor neither special knowledge, so that everybody can use it easily.
4. Power and water saving
The screw which is the main component rotates very slowly at a rate of 2 to 4 rpm, so that it
consumes very low power and thus economical. Multi-plate Screw Press prevents filter mesh
from clogging with its unique self-cleaning mechanism, removing the need for huge amounts
of water for clogging prevention.
Technical parameters
| Model | DS Standard capacity(kg/h) | Sludge treatment(m3/h) |
| 10000mg/L | 20000mg/L | 30000mg/L | 40000mg/L | 50000mg/L |
| HLDS131 | 6-10 | 1 | 0.5 | 0.4 | 0.3 | 0.28 |
| HLDS132 | 12-20 | 2 | 1 | 0.8 | 0.6 | 0.56 |
| HLDS133 | 18-30 | 3 | 1.5 | 1.2 | 0.9 | 0.84 |
| HLDS201 | 9-15 | 1.5 | 0.75 | 0.6 | 0.5 | 0.4 |
| HLDS202 | 18-30 | 3 | 1.5 | 1.2 | 1 | 0.8 |
| HLDS203 | 27-45 | 4.5 | 2.25 | 1.8 | 1.5 | 1.2 |
| HLDS301 | 30-50 | 5 | 2.5 | 2 | 1.5 | 1.4 |
| HLDS302 | 60-100 | 10 | 5 | 4 | 3 | 2.8 |
| HLDS303 | 90-150 | 15 | 7.5 | 6 | 4.5 | 4.2 |
| HLDS304 | 120-200 | 20 | 10 | 8 | 6 | 5.6 |
| HLDS401 | 90-150 | 13 | 6.5 | 5 | 4 | 3.2 |
| HLDS402 | 180-300 | 26 | 13 | 10 | 8 | 6.4 |
| HLDS403 | 270-450 | 39 | 19.5 | 15 | 12 | 9.6 |
| HLDS404 | 360-600 | 52 | 26 | 20 | 16 | 12.8 |
| Model | DN(mm) | Discharge Height(mm) | Dimension(mm) | N.W(kg) | O.W(kg) |
| L | M | H |
| HLDS131 | φ130*1 | 250 | 1860 | 740 | 1075 | 250 | 395 |
| HLDS132 | φ130*2 | 250 | 1960 | 870 | 1075 | 350 | 595 |
| HLDS133 | φ130*3 | 250 | 1960 | 920 | 1075 | 450 | 795 |
| HLDS201 | φ200*1 | 350 | 2650 | 750 | 1375 | 420 | 540 |
| HLDS202 | φ200*2 | 350 | 2650 | 940 | 1375 | 550 | 660 |
| HLDS203 | φ200*3 | 350 | 2650 | 1190 | 1375 | 700 | 1010 |
| HLDS301 | φ300*1 | 530 | 3440 | 940 | 1825 | 900 | 1300 |
| HLDS302 | φ300*2 | 530 | 3640 | 1260 | 1825 | 1350 | 2000 |
| HLDS303 | φ300*3 | 530 | 3900 | 1620 | 1825 | 1900 | 2700 |
| HLDS304 | φ300*4 | 530 | 3900 | 2040 | 1825 | 2500 | 3600 |
| HLDS401 | φ350*1 | 570 | 4350 | 1020 | 2160 | 2200 | 4200 |
| HLDS402 | φ350*2 | 570 | 4350 | 1550 | 2160 | 3500 | 6000 |
| HLDS403 | φ350*3 | 570 | 4570 | 2100 | 2160 | 5500 | 8000 |
| HLDS404 | φ350*4 | 570 | 4570 | 2650 | 2160 | 7000 | 9500 |
| Model | Motor Power | Rinse Water Pressure | Water Consumption(L/H) | Maintennance Frequency |
| Screw shaft | agitator | total |
| HLDS131 | 0.1 | 0.1 | 0.2 | 0.1Mpa-0.2Mpa No need high pressure rinse water | 48 | 5min/day |
| HLDS132 | 0.1*2 | 0.1 | 0.3 | 96 |
| HLDS133 | 0.1*3 | 0.1 | 0.4 | 144 |
| HLDS201 | 0.37 | 0.37 | 0.74 | 32 |
| HLDS202 | 0.37 | 0.37 | 1.11 | 64 |
| HLDS203 | 0.37 | 0.37 | 1.48 | 96 |
| HLDS301 | 0.75*1 | 0.75 | 1.5 | 40 |
| HLDS302 | 0.75*2 | 0.75 | 2.25 | 80 |
| HLDS303 | 0.75*3 | 0.75 | 3 | 120 |
| HLDS304 | 0.75*4 | 0.75 | 3.75 | 160 |
| HLDS401 | 1.1*1 | 0.75 | 1.85 | 80 |
| HLDS402 | 1.1*2 | 0.75 | 2.95 | 160 |
| HLDS403 | 1.1*3 | 0.75 | 4.05 | 240 |
| HLDS404 | 1.1*4 | 0.75 | 5.15 | 320
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