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Screw Decanter (Dehydrator)
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Application – Screw Decanter(Dehydrator)
A high efficient device which uses high speed of centrifugal force in dehydrating various types or sludge
- Dehydrates remaining sludge and raw of sewage, wastewater treatment plant
- Dehydrates degested sludge of sewage treatment plant
- Dehydrates sludge of excrements and livestock wastewater treatment plant
- Dehydrates solid-liquid waste or food waste treatment plant
| Standard | Capacity (㎥/hr) | G-force | Motor (Kw) | Size (L×W×H mm) | Weight (kg) |
| EWHA 250MTDI | 2~5 | 2,000~2,500G | 7.5/(1.5) | 2,200×750×800 | 2,000 |
| EWHA 300MTDI | 5~8 | 2,000~2,500G | 15/(2.2) | 2,500×870×830 | 2,500 |
| EWHA 350MTDI | 8~15 | 2,000~2,500G | 18.5/(3.7) | 2,800×1,000×950 | 3,200 |
| EWHA 400MTDI | 15~20 | 2,000~2,500G | 30/(7.5) | 3,300×1,150×1,100 | 4,000 |
| EWHA 450MTDI | 20~25 | 2,000~2,500G | 45/(11) | 3,500×1,250×1,180 | 5,000 |
| EWHA 500MTDI | 25~30 | 2,000~2,500G | 55/(15) | 3,850×1,400×1,420 | 5,500 |
| EWHA 550MTDI | 30~40 | 2,000~2,500G | 55/(15) | 4,500×1,420×1,420 | 6,500 |
| EWHA 620MTDI | 40~50 | 2,000~2,500G | 75/(22) | 4,900×1,720×1,600 | 7,500 |
| EWHA 650MTDI | 45~55 | 2,000~2,500G | 75/(22) | 5,050×1,800×1,650 | 8,500 |
| EWHA 720MTDI | 55~70 | 2,000~2,500G | 90/(22) | 5,400×1,900×1,700 | 9,500 |
*Processing capacity may vary according to inflow concentration
| N O . | Installation Area | Capacity (㎥/hr) | Quantity |
| 1 | Samsung electronic- Hwasung | 50 | 7 |
| 2 | Metropolitan landfill | 50 | 6 |
| 3 | Ulsan Yongyun Sewage treatment plant | 50 | 6 |
| 4 | Junglang water regenerate center | 35 | 5 |
| 5 | buyo suksung Filtration plant | 20 | 5 |
| 6 | Anyang Suksu Sewage treatment plant | 50 | 4 |
| 7 | Samsung Electronic- pyungtak | 50 | 4 |
| 8 | Kyungju Water Environment center | 30 | 4 |
| 9 | Kohung Sewage treatment plant | 20 | 4 |
| 10 | Bangladesh Modunagat Filtration plant | 40 | 4 |
| 11 | Hwasung dongtan water regenerate center | 15 | 4 |
| 12 | Busan Suyoung Sewage treatment plant | 50 | 3 |
| 13 | Ilsan Sewage treatment plant | 40 | 3 |
| 14 | Busan Nambu Sewage treatment plant | 30 | 3 |
| 15 | Busan Noksan Sewage treatment plant | 30 | 3 |
| 16 | Busan Janglim Sewage treatment plant | 30 | 3 |
| 17 | Sihungsi Environmental Office | 30 | 3 |
| 18 | Ilsan Environmental Office | 30 | 3 |
*Sales over 150 sites/ 300 units including mentioned installation areas
| Classification | Contents | No. | Application date | egostration date |
| patent | Decanter type centrifuge- (Coagulation,Concentration and Dehydration) | 10-0740608 | 2007-03-02 | 2007-07-11 |
| patent | Channel type mixed coagulation divice having a clogging prevention funtion | 10-0949462 | 2008-03-19 | 2010-03-18 |
| Utility Model | Multi-Bush for centrifugal separator with external exchangeable variable diameter and discharge port | 20-0445181 | 2008-03-19 | 2009-06-30 |
| patent | Internal reduction gear box type screw decanter | 10-0974949 | 2010-04-20 | 2010-08-03 |
| patent | Sludge treatment equipment | 10-0993173 | 2010-08-18 | 2010-11-03 |
| patent | Channel sludge mixed flocculation equipment | 10-0999357 | 2010-09-06 | 2010-12-02 |
| patent | Corrosive gas backflow prevention device of centrifugal dehydrator | 10-1008516 | 2010-11-02 | 2011-01-10 |
| patent | Centrifugal dehydrator with distribution chamber of clog prevention structure | 10-1231066 | 2012-07-18 | 2013-02-01 |
| patent | Bearing with anti-seize function | 10-1256854 | 2012-11-12 | 2013-04-16 |
| patent | Centrifugal separator with variable bushing | 10-1321078 | 2013-07-19 | 2013-10-16 |
| patent | Centrifugal separator with discharge venting | 10-1433308 | 2014-03-12 | 2014-08-13 |
| patent | Centrifugal separator with discharge venting | 10-1422567 | 2014-03-12 | 2014-07-17 |
| patent | Rapid liquid polymer melting device | 10-1209520 | 2012-07-18 | 2012-12-03 |
Horizontal Structure
The horizontal structure screw decanter is a new concept screw decanter newly developed in 2016. It arranges main driving motor and speed motor in horizontally intensive structure to minimize the occurrence of noise and vibration.
Strength of Horizontal Structure
*Lowers the center of load of the device by arranging main drive motor and back drive motor in horizontally intensive structure. It enables stable operation and also improves operation environment with less noise and vibration.
*Enhanced stability and durability through low frame height and improved solidity.
*Enhanced cake dehydration efficiency through extended torque value regulating range for scroll through tension dispersion of the driving part.
*Enhanced lifespan through minimized bending load between axes with left and right placement of reduction gear and pulley part.
Internal reduction gear box type
Internal reduction gear box type
Internal reduction gear box type decanter is a high-tech screw decanter developed in 2010. The external gear box, source of vibration in the existing screw decanter, is directly attached to the bowl and it prevents the vibration occurrence. It also prevents the malfunctioning in advance and has compact size.
*Development of internal gear box type decanter, vibration of cantilever structured external reduction gear.
*Weight lightening and improved durability of reduction gear through development of reduction gear for screw decanter.
*Enhanced dehydration performance through stable high-speed operation by the improved structural vibration.
Difference from the Existing Screw Decanter and Strength
*No reduction gear influencing the external vibration of the supporting bearing.
*Reduction gear is built in the bowl and it allows for the precise correction of dynamic balance and minimizes vibration during the high-speed rotation.
*Minimized vibration allows for increased speed of screw scanter and improves the performance of the decanter.
*The solution for vibration increase source drastically extends the device lifespan.
*Compact device with built-in reduction gear.
External Exchanging Multiple Bush
Extended lifespan and improved performance by changing the cake discharge caliber and exchanging the bush on site according to sludge characteristic
*Discharge caliber is changed by exchanging liner and bush within the same bush housing
Importance of Solid’s Discharge Bush
*Among the screw decanter parts, discharge bush has the most wear
*Uneven wear of discharge bush causes vibration of high-speed bowl and causes malfunctioning
*Constant operation in the excessive vibration state caused by the unavailable on-site bush exchange leads to increased number of malfunctioning and accidents.
Double cover cake outlet of Screw Decanter (Patented)
Dividable cover of Screw Decanter
Improved in abrasion resistance of the screw(Preliminary tiling, usage of tungsten powder)
A centrifugal type solid-liquid separator that is used to separate solid matters in liquid at various dredge soil, soil improvemnts, retarding basin etc. It is able to process in a large amount
Feature -Screw Decanter for Civil Use
*Most suitable for dividing solid powder such as fine sand of dredge soil
*Suitable even for moving vehicle loads
*Suitable for handing inpurities in dredged soil that is difficult to handle
*A structure which is most suitable to deal with abrasion
Application -Screw Decanter for Civil Use
*Solid-liquid separation of dredged soil at dredging field
*Solid-liquid separation of dredge in digester chamber
*Solid-liquid separation oof soil reproduction process
*Solid separation is done during material process
*Solid-liquid separation separation of dredged soil in retarding basin
Delivery Performance – Screw Decanter for Civil Use
| N O . | Installation Area | Capacity (㎥/hr) | Quantity | Remark |
| 1 | BAUER/Germany | 15 | ||
| 2 | SANWAKIKOH/Japan | 2 | ||
| 3 | Dongho calcum | 2 | ||
| 4 | Korea Coal Corporation | 40 | 2 | |
| 5 | Pohang FINEX Sewage treatment plant | 35 | 3 | |
| 6 | Korea expressway corporation research institute | 12 | 1 | |
| 7 | Metropolitan landfill | 30 | 1 |
*Sales over 10 sites including mentioned installation areas