Tag Archives: Decanter Centrifuge

DC dewatering decanter centrifuge is GW series decanter centrifuge with beach angle of 11 degrees. DC GW series decanter centrifuge is usually used dewatering and thickening purpose. It is widely used for maximum dewatering requirements of municipal and industrial wastewater sludge.

Today we shipped a set of DCLW350-1200 decanter centrifuge to pakistan used for wastewater treatment. The dewatering decanter centrifuge is designed for easy separation material include large particle size, high density difference of solid and liquid, low viscosity, high concentration, high treatment capacity and higher dryness than clarity. The materials like sludge or wastewater containing fine particles usually need to be added with flocculants to gather the fine particles condensed into large ones, and then dewatered with DCLW series decanter centrifuge.


The characteristics of Decanter centrifuge by DC

:1. Innovative design includes longer bowl, allowing drilling fluids to thread through more slowly, thus resulting in drier solids and finer separation point;
2. Big bowl offers big volume. It also generates high-G force;
3. Stainless steel bowl, scroll, compartment are available and covered with corrosion-proof coating so as to have longer lifespan;
4. Tungsten carbide scroll points with wide spacing flights at tapered end create a finer layer of conveyed solids for consistent, uniform separation and maximum solids control efficiency.
5. German FAG or Swedish SKF brand bearings are available;
6. Electrical Components complies with SIEMENS/Schneider ATEX or IEC Ex.

decanter centrifuge

DC Machinery not only provide users with Dewatering Decanter Centrifuges, rely on DC rich production line of separation and conveying equipment. DC can also provide users with turnkey solutions for the material dewatering process, including solutions for material transportation, classification and dewatering.

Decanter Centrifuges for oilfield applications are often introduced to deal with drilling mud within active solids control system or waste effluent of drill cuttings. With middle speed decanter in operation, barite can be recovered and high speed decanter for the removal of undesired ultra fine solids.

Our purpose-built oilfield decanter centrifuges are abrasion resistance, combine long life with capacity and performance, require less maintenance time and reduce down time.Top rated explosion proof motors with approvals of IEC Ex, ATEX, UL for option for hazardous area, wired with 460V / 60Hz, 380V / 50Hz.


The decanter centrifuge Drum and spiral parts titanium welding with 304/316 / 316L/321 stainless steel, stale performance and long service, warmly welcome by the customers at home and abroad.

Recent days, DC Solid control shipped one set of DCLW355-1250 decanter centrifuge, the decanter centrifuge is widely used in waste water treatment, crude oil recovery, coal tar recovery, palm oil recovery, fruit juice production, protein production, DCS production, starch production, food waste treatment, etc. DC have the decanter centrifuge from 9 inch bowl to 22 inch bowl available for different applications. DC decanter centrifuge bowl length and diameter ration is over 3, this gives the best result for the drilling fluids cleaning.

DC Solids Control based in China manufacture and supply complete line of high-speed, variable-speed and fully variable-speed decanting centrifuge for handling drilling fluids. Our factory and company are Quality Management System ISO 9001-2000 certified

A decanter centrifuge separates solids from one or two liquid phases in one single continuous process. This is done using centrifugal forces that can be well beyond 3000 times greater than gravity. When subject to such forces, the denser solid particles are pressed outwards against the rotating bowl wall, while the less dense liquid phase forms a concentric inner layer.

decanter centrifuge

There are several types of decanter centrifuges currently utilized in the industry, the most widely recognized are vertical, horizontal and conveyor centrifuges. The principle behind a decanter centrifuge is based on the theory of gravitational separation.

For example, if you fill a vessel with a mixture of mud and water, over time the weight of the mud will cause it to settle down at the base of the vessel. With the mud congealed at the bottom, the water will be forced upwards, creating a clear separation between the two.

A decanter centrifuge employs the same principles of gravitational force. However, unlike the glass mixture, the process is expedited through the use of continuous rotation. In fact, rotation provides anywhere from 1000 to 4000 times the normal gravitational force, reducing the time required for separation from hours to seconds.

If you want to know more about decanter centrifuge, please contact me freely.

Over the years our group has developed a great experience and a strong know-how in the most important centrifuge markets.We provide solutions to any technological solid-liquid and solid-liquid-liquid separation problem, through decanters which are placed on a large variety of application fields with a wide range of flow rates.



We design and develop solutions for thickening and dewatering of sludge generated by municipal or industrial wastewater, biomasses and manures treatment plants. A large range of decanters is continuously innovated, basing on a number of installations and many years of experience in this field.


We provide solutions for several chemical industries in the purification of intermediate or final products and even in the recovery of waste products. Our decanter centrifuges are largely installed in pharmaceutical and bio-technologies industry, in production processes of minerals, metals and non-conventional fuels (e.g. biodiesel, ethanol).


Mineral Fuel and Lube Oils

We offer technological solutions for fuels cleaning and treatment, for lube oils purification, for the conditioning and recovery of mineral oils, industrial or environmental slop oils, bottom tank residues and bilge water.

A centrifuge is a device, which employs a high rotational speed to separate components of different densities. This becomes relevant
in the majority of industrial jobs where solids, liquids and gases are merged into a single mixture and the separation of these
different phases is necessary.

A decanter centrifuge separates solid materials from liquids in slurry and therefore plays an important role in wastewater treatment,
chemical, oil and food processing industries.

decanter centrifuge1

Operating principle of a decanter centrifuge

The operating principle of a decanter centrifuge is based on gravitational separation. Naturally, a component with a higher density
would fall to the bottom of a mixture, while the less dense component would be suspended above it. A decanter centrifuge increases
the rate of settling through the use of continuous rotation, producing a gravitational force between 1000 to 4000 times that of
normal gravitational force. This reduces the settling time of the components by a large magnitude, whereby mixtures previously having
to take hours to settle can be settled in a matter of seconds using a decanter centrifuge. This form of separation enables more rapid
and controllable results.


Performance features of decanter centrifuge

Coming in a range of sizes, horizontal continuous cleaning decanter centrifuges provide an effective, low maintenance solution to
liquid clarifying and solids dewatering with advanced process and mechanical performance features.

DC Solid control decanter centrifuge supplier provides the advantage of high efficiency operation compared to traditional separation systems. It was necessary to develop continuing systems in order to reduce the increasing company costs and for the growing industry to be able to adjust itself to the acquired achievements.

Application flexibility

Decanters provide practically high efficiency results under fluctuations at product inlet, differences in process conditions and even at different characteristics of various products. This capability enables reliable and regular operation.


Operational conditions

Appropriate body designs and isolation systems can be applied for steam proof or pressurized processes between 0-8 bars. The designs and machinery are available for cleaning in place (CIP) systems to be used in extremely low and extremely high temperature conditions, explosive atmosphere standards and hygienic environments.


Operation of the decanter became fully automatic with the use of modern devices and control units. The ability to control whole facility from a central control room enables the decanter to be operated with no personnel.


Easy installation

It is possible to install the decanter easily and quickly thanks to its design and all the required functions integrated in single unit. Low vibration levels and active support system of DCLW decanters centrifuge eliminate complex and expensive base construction. Auxiliary equipments and connections are not needed. Corrosion and wear protection process specific materials highly resistant to corrosion and abrasion are used in decanter manufacturing.

Personnel safety

Closed design of the decanters and the availability of high- tech safety systems ensure high safety for the operator and the maintenance personnel.

Low space requirement

With its excellent design and high processing capacity, the decanter requires a lot less space compared to alternative systems.


Today, we got the news from my Siberia clients, he said, “I was so proud that our decanter centrifuge works properly in the bad environment”.

The client is our old friend for about 2 years, and we have already manufactured 7 sets solid control system for them.


The reason why we can always successfully cooperate is our lowest price and high quality product got their trust. We never ignored any details in product quality and service.

decanter centrifuge

DCLW364 VFD centrifuge is the frequency conversion centrifuge, it has a independent frequency control box to control centrifuge drum rotary speed and get the different treating capacity. Now this model of centrifuge have been accepted by many users based on its flexible operation and lower price.

Meanwhile, we also can customize all kinds of different decanter centrifuge accoriding to clients different requirements, if you have any questions please contact us soon.

A solid bowl centrifuge is a type of centrifuge that uses the principle of sedimentation. A centrifuge is used to separate a mixture consists of two substances with different densities by using the centrifugal force resulting from continuous rotation.

By installing the correct centrifuge, organisations will reduce the cost of thermal drying considerably and may even make it superfluous. DC Solid control specialises in the development and manufacture of continuously operating centrifuges, and supplies centrifuges across a broad range of industries, including mining.

decanter centrifuge

The decanter centrifuge provides separation by means of differences in specific gravity. Each design uses different techniques for separating the material and provides specific advantages, depending on the process requirements.

DC Solid control’s unique short-bowl decanters, with single-bearing overhang design, allow easy access for maintenance and cleaning purposes compared to conventional dual-bearing decanters. This feature also allows the machines to be used in high-temperature applications. where excessive thermal expansion can be better accommodated than dual bearing designs.

Drilling industry expert widespread agree drilling fluid centrifuge the important function in solid control system, most domestic drilling teams equipe the main motor power with 18.5, 22,37 and 45kw, and the rotary speed is 1300-2200r/min the middle speed centrifuge. At the present, drilling fluid centrifuge mainly has medium-speed centrifuge and high speed the two kind.

Medium-speed centrifuge:

The rotary speed of medium speed is 1300-2200r/min, produced the centrifugal force is about 800 times of gravity, treacting capacity is 40-60m3/h, this kind of centrifuge used to eliminate 5-7um solid phase particles.

decanter centrifuge

High speed centrifuge:

The rotary speed of high speed centrifuge is 2500-3300r/min, produced the centrifugal force is about 1200-2100 times of gravity, separation size is 2-5um, the treating capacity of this kind of centrifuge can be adjusted according to drilling fluid performance, and can real-time monitoring and fully frequency conversion automatic closed-loop according to load, can efficiency control drilling fluid performance, it is the ideal solid control purification equipment to drill deep well and special technological requirements.


Another is a kind of CRPM high speed centrifuge:

Usually this kind of centrifuge set 2-3 rotary speed is higher than the common centrifuge, the operating personnel estimate to drilling fluid performance, hand regulating centrifuge rotary speed to get the better drilling fluid processing effect.

Drilling fluid centrifuge has play the more and more important role, many drilling teams equipp two centrifuges, need attention, if equipped the two same technology performance centrifuge( usually is medium speed centrifuge, when has the different treating capacity) should adopts multipled technological process, to be as the reserve centrifuge or increase drilling fluid treating capacity in rapidly drilling.

At the present, domestic have already produce full frequency control high speed centrifuge, the cost of the centrifuge is very high, and request high quality personnel, need the professional electrical engineer operates and maintains. If the drilling team have the special requirements to drilling fluid suggest use medium speed centrifuge series connection with domestic high speed centrifuge, the drilling fluid treated by medium speed centrifuge enter into high speed centrifuge feeding bin, after treated by high speed centrifuge enter into circulating system to reuse. Then drilling fluid solid phase get the better purification which has the good effect to follow up equipment service life, save mud and improve drilling machine drilling speed.


DC Solid control took part in 2014 Beijing CIPPE Exhibition on 19th-21th of March. The equipment which we exhibit are long motor shale shaker, DCLW360-1200 VFD Centrifuge and DCLW450-1350 Centrifuge.

The features of the shale shaker is the long motor, the treating effect is better than the short one, because the vibrating is more uniformity can make the mud entered into the screen obtain the fully processed.


The DCLW360-1200VFD centrifuge and DCLW450-1350 centrifuge are all the variable frequency centrifuge, they all have a unique electric control cabinet to adjust the rotary speed accroding to drilling field requirements. The treating capacity of the two models centrifuge respectively are 60m3/h and 40m3/h.


In the Exhibition, there are many clients who are domestic and foreign are all interests with our equipment, and we have a nice exchange, hope we can have chance to cooperate. We will taking part in Huston OTC Exhibtion on May, if you have requirements about solid control you can go Huston to visite our equipment.