Working Principle
Thickening: When the shaft is driven by the screw, moving rings
around the shaft move up
and down relatively. Most water is pressed out from the thickening
zone and fall down to the
filtrate tank for gravity.
Dewatering: The thickened sludge moves forward continuously from
the thickening zone
towards the dewatering zone. With the pitch of the screw shaft
thread getting narrower and
narrower, the pressure in the filter chamber increases higher and
higher. In addition to the
pressure generated by the back-pressure plate, the sludge is
greatly pressed and dryer
sludge cakes produce.
Self-cleaning: The moving rings rotates continuously up and down
under the pushing of the
running screw shaft while the gaps between the fixed rings and
moving rings are cleaned to
prevent from clogging that happens frequently for traditional
dewatering equipment.
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 |
Characteristic
♦It is not easy to be blocked
With self-cleaning function. There is no need to prevent the filter
clogging and cleaning,
reduce the amount of water rinse, and reduce the burden of internal
circulation.
♦Low speed operation
1. Rotary shaft speed about 2 to 3 r / min, low power consumption.
2. Less failure, small noise, and safe operation.
♦ Simple operation
1. Through the cabinet interlocked with the feeding pump, dosing
pump, to achieve 24 hours
of continuous unmanned operation.
2. Routine maintenance time is short, maintenance is simple.
♦ Long service life
1. The body is almost all stainless steel, to maximize the service
life.
2. Replacement parts only screw shaft and swimming ring, the use of
long cycle.
