Multi-Disc Screw press Dehydrators MDC Series feature unitized construction that integrates all necessary accessories, and can be more easily installed and are very compact compared with belt presses and centrifugal dehydrators. The dehydrators boast lower noise, reduced energy consumption, and require less water for flushing, thus providing an economical and eco-friendly solution to dehydration applications.
Multi-disc screw press dehydrators utilize both gravity filtration and screw displacement compression systems. The pitches of the screw blades are gradually narrower toward the cake outlet in order to reduce the volume of cake, so the coagulated sludge that has been concentrated by gravity filtration is dehydrated by compression.The dehydrator main unit requires lower motor output and the filtration surface consists of a multiplicity of self-cleaning capable discs, and seldom clogs. Thus, the dehydrator can be used continuously. The main unit of the dehydrator is of multi-shaft design. Therefore, when two or more main units are configured into one machine, any individual shaft can be repaired or serviced without interrupting dehydration operations.Multi-disc screw press dehydrators can coze with a wide range of sludge concentrations, and also stably dehydrate sludge that contains high oil content.
Tsurumi’s multi-disc screw press dehydrators are available in wide lineup, with treating capacity in a range of 3 to 216 kgDS/h, and with five shafts at maximum. Users can select the best equipment from 13 models according to the size of targeted treatment plant.
The MDQ/MDC series features energy-saving construction designed to dehydrate sludge by “gravity filtration + screw volume reduction.” The equipment is of compact unitized construction with all of the necessary accessories and control panel mounted on a common base*, and therefore can be readily installed in very limited floor space. * Not applicable to the MDC-series.
Operators can begin automatic operations of the dehydrator and related accessories by simply and easily operating the included control panel
The filtration surface consists of a multiplicity of discs and a self-cleaning mechanism, therefore it seldom clogs and the equipment can run continuousl
The equipment can stably dehydrate even sludge that contains high oil content. The dehydrator is an optimum solution for treating oily sludge such as DAF froth (mixing with excess sludge) at food processing plants, which filter cloth systems and centrifugal separation processes cannot readily handle. Thus, the equipment boasts a higher solid capture rate.
The dehydrator has both a gravity concentration section and compression dehydration section, and therefore can cope with a wide sludge concentration range of 0.5 to 2.0%.
Because the equipment is constructed to avoid clogging, flushing is not needed in order to restore the original filtration performance. Only showering with a minor amount of water is necessary to wash away sludge that oozes from the dehydration section. Thus, the amount of flush water needed is minimal, and routine maintenance work is not needed.
The dehydrator main unit features a semi-enclosed construction, and runs at an extremely low speed, therefore sludge does not splatter from the equipment. The dehydrator is of eco-friendly design that generates low noise and vibrations, and emits virtually no odors.
When two or more dehydrator main units are configured into one machine, any individual shaft can be repaired or serviced without interrupting dehydration operations.
The main unit of the multi-disc screw press dehydrator contains a multi-disc mechanism where ring-shaped “fixed discs” and “movable discs” are alternately arranged at a regular clearance around a “screw shaft.” The main unit consists of a “support frame” that supports the multi-disc structure and a “dam plate” at the end of the screw shaft.
| Model | Treating Capacity kgDS/h |
Total Motor Output kW |
Dimensions mm |
Weight kg |
||||
|---|---|---|---|---|---|---|---|---|
| Screw Shaft | Length | Width | Height | Dry | Operating | |||
| MDQ-101 | 3 - 6 | 0.6 | ɸ 100 X 1 | 1800 | 900 | 1800 | 400 | 1000 |
| MDQ-102 | 6 - 12 | 0.7 | ɸ 100 X 2 | 1800 | 900 | 1800 | 500 | 1150 |
| MDQ-103 | 9 -18 | 1.0 | ɸ 100 X 3 | 1850 | 1100 | 1800 | 700 | 1550 |
| MDQ-104 | 12 - 24 | 1.25 | ɸ 100 X 4 | 2100 | 1500 | 2050 | 900 | 1950 |
| MDQ-105 | 15 - 30 | 1.35 | ɸ 100 X 5 | 2100 | 1500 | 2050 | 1000 | 2100 |
| MDQ-201 | 9 - 18 | 1.05 | ɸ 200 X 1 | 2650 | 1200 | 2050 | 700 | 1600 |
| MDQ-202 | 18 - 36 | 1.25 | ɸ 200 X 2 | 2650 | 1200 | 2050 | 900 | 1900 |
| MDQ-203 | 27 - 54 | 1.8 | ɸ 200 X 3 | 2650 | 1500 | 2050 | 1200 | 2550 |
| MDQ-204 | 36 - 72 | 2.35 | ɸ 200 X 4 | 2800 | 2100 | 2050 | 1600 | 3550 |
| MDQ-205 | 45 - 90 | 2.9 | ɸ 200 X 5 | 2800 | 2100 | 2050 | 1800 | 3850 |
| MDC-351 | 36 - 72 | 0.95 | ɸ 350 X 1 | 3770 | 1140 | 2005 | 1300 | 1830 |
| MDC-352 | 72 - 144 | 1.85 | ɸ 350 X 2 | 3930 | 1460 | 2030 | 2300 | 3310 |
| MDC-353 | 108 - 216 | 3.15 | ɸ 350 X 3 | 4220 | 1810 | 2200 | 3300 | 4840 |
