Multi-disc screw press (Hereinafter referred to as MDS) is a new generation of sludge dewatering machine, a screw type sludge dewatering press having more advantages than belt press, centrifuge, plate-and-frame filter press, etc. It features clog-free, wide range of applications, power saving, fully automatic control, low running cost, high resistance to oily sludge, simple operation & maintenance, small footprint, etc. MDS can be widely used in Municipal sewage, food, slaughtering breeding, printing and dyeing, oil chemical industry, paper making, leather, pharmaceutical and other industries of sludge dewatering.Meanwhile, the unique self-cleaning mechanism and stainless steel structure enables MDS to be ideal to dewater oily sludge, which easily causes clogging and is difficult to treat with other types of dewatering equipment.
|Gearbox||Brand||SEW, BAUER, |
|Protection||Certificates & IP||UL,CE, Water proof(IP65) CCC|
|Screw Shaft||Treatment||SUS316L, Tungsten carbide coating|
|Electrical Components||Brand||Schneider, Omron, Siemens|
|Solenoid Valve||Brand||US, ASCO|
|Spray System||Brand||Japan Origin, H.IKEUCHI|
& Chemical Precipitated Sludge
Dissolved Air Flotation Sludge
|Mixed Raw Sludge|
Aerobic Digested Sludge
& Sewage Sludge
|Sludge Concentration (TS)|
|MDS 051||~0.4 kg-DS/hr|
|MDS 101||~2 kg-DS/hr|
|MDS 131||~4 kg-DS/hr|
|MDS 132||~8 kg-DS/hr|
|MDS 202||~16 kg-DS/hr|
|MDS 311||~20 kg-DS/hr|
|MDS 312||~40 kg-DS/hr|
|MDS 313||~60 kg-DS/hr|
|MDS 412||~80 kg-DS/hr|
|MDS 413||~120 kg-DS/hr|
(1) BENENV's sludge dewatering machine is of unique dewatering structure with fixed and moving rings. It has many advantages over other dewatering machines such as plate and frame filter press, belt filter press and decanter centrifuge, especially for power and rinsing water consumption and labor cost saving. Below is a comparison table among them.
(1) High resistence to oily sludge
The self-cleaning mechanism and stainless steel structure enables MDS to be ideal to dewater oily sludge, which easily cause clogging and is difficult to treat with other types of dewatering equipment like belt filter press.
(2) Clog-free -- saving rinsing water -- saving cost
Due to the rotation of helical axis, the moving rings begin detaching from the fixed rings while continuously starting the
self-cleaning process. As a result, the ubiquitous clogging is avoided with the unique structure. Therefore, it can handle oily sludge without any trouble while separating the water from the sludge easily. In addition, there is no need to add large quantity of rinsing water, thus MDS can saving the cost.
(3) Saving energy -- low power consumption
MDS works by the machine's internal pressure and needs no large scale integrations like rollers. It saves energy and water and has very minimal noise because of low running speed (2-4 r/min). The average unit power consumption is only 0.1-0.01 kwh/kg-Ds (1/8 of Belt Press and 1/20 of Centrifuge).
(4) Fully automatic control -- saving labor cost
There are no easily blocked pieces such as belt and filtration pore in MDS. Combining with the auto control system, the machine runs very safely and simply and can be programmed according to the requirement of the users. It can operate automatically for 24 hours, unmanned.
(5) Small footprint -- saving the construction investment of dewatering room
With the smart design, MDS dewatering press can be installed in places where placement would not be possible with other technologies.
(6) No thickeners -- saving the capital investment and costs on other auxiliary equipment
MDS can treat sludge in aeration tank and secondary sedimentation tank without setting sludge thickeners. Therefore, this can decrease the total investment and costs on mixers, air compressors, flushing pumps and other auxiliary equipment.
The initial section of dewatering drum is the Thickening Zone,where the solid-liquid separating process takes place and where the filtrate will also be discharged. The pitch of the screw and the gaps between the rings decrease at the end of dewatering drum, hence increasing its internal pressure. At the end, the End Plate further increases the pressure, so as to discharge dry sludge cake.The initial section of dewatering drum is the Thickening Zone,where the solid-liquid separating process takes place and where the filtrate will also be discharged. The pitch of the screw and the gaps between the rings decrease at the end of dewatering drum, hence increasing its internal pressure. At the end, the End Plate further increases the pressure, so as to discharge dry sludge cake.
Jiangsu Benenv Environmental Protection Technology Co., Ltd. is an environmental protection company, specialized in mechanisms, environmental engineering and other related science. With research center in Japan, we have factory and office in China. Benenv specializes in the design, engineering, supply and installation of domestic and commercial water, waste water and sewage treatment systems, gas pollution control, and other environmental engineering products. Our company possesses complete sets of process design, equipment supply, constructions, and technology innovation. Overall, we are highly qualified in delivering turnkey and BOT projects for any industry. We have abundant experience in the treatment of industrial, domestic and commercial hazard wastewater. Benenv is staffed with local and overseas professionals with more than 15 years of acquired technical expertise and experience, offering various technologies and allied services. Our company works closely with the top 10 universities and scientific institutes to keep our cutting-edge technology and transform science and technology into productivity. Our company also works with the government, and is authorized as the liaison office of Yixing government to perform technology cooperation with foreign countries.
Packing & Delivery
Q: What's MDS Sludge Dewatering Machine?
A: MDS Japanese quality 24hrs automatic oil sludge treatment equipment has been used in Japan market for over 30 years, is a mature technology. It was developed in our Japanese research center (Japan Benenv Co., Ltd.). We have Japanese engineers for technical support and quality control, other Chinese manufacturers they are just copy-cats from this Japanese technology, they are not original and lack of experience on this technology.
Q: What type of sludge is MDS Sludge Dewatering Machine applicable to?
A: It is applicable to various kinds of sludge such as waste activated sludge, dissolved-air floatation sludge and so forth. The thickening mechanism of this equipment enables dewater not only highly-concentrated sludge but also low-concentrated sludge with ease.
Q: What's the application scope of MDS Sludge Dewatering Machine?
A: It is widely applied in Municipal water and wastewater treatment plants, Agricultural/fishery community wastewater treatment plants, Industrial waste treatment plants, Food/beverage production plants, Dairy farming/Meat processing plants, Chemicals manufacturing plants, Machinery manufacturing/Metal processing plants, Paper manufacturing, building material manufacturing, oilfield associated water accompanied with crude oil mining, etc..
Q: What's the material of MDS Sludge Dewatering Machine?
A: It is Stainless Steel, we choose SUS304H, SUS316L, etc, some key parts we import from Japan, we also have our own workshop in Japan for production.
Q: What's the equipment used together with MDS Sludge Dewatering Machine?
A: Sludge pump, polymer dosing pump, washing pump, air compressor.
Q: Why aren't your rings carbonized like other companies'?
A: Carbonization is to harden and strengthen the metal surface. Our rings material is called 304 hardened steel (SUS304H), which is directly treated by our steel supplier, this hardened stainless steel can make the hardness of carbonized steel up to HV380-420 in China. Most of other manufacturers can reach to only HV250. This hardened steel SUS304H is 3 times expensive than normal SUS304, so other manufacturers they prefer to choose the normal material and need to increase the thickness of rings in order to increase the hardness, actually, increase the thickness of rings will affect the dewatering effects.
Q: How to choose the right model?
A: Advise us the sludge source, treating capacity, solid content rate, then we could choose the suitable model for you. Please put forward if you have special requirements.