Tag Archives: Decanter Centrifuge Supplier

Decanter centrifuge is an common used unit in many industry. A centrifuge is a device, which employs a high rotational speed to separate components of different densities. The decanter centrifuge separates solid materials from liquids in slurry and therefore plays an important role in wastewater treatment, chemical, oil and food processing industries. There are several factors that affect the performance of a decanter centrifuge and some design heuristics to be followed which are dependent upon given applications.

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.

centrifuges

The main components of decanter centrifuge are the bowl, differential Speed and scroll.

The separation medium reaches its maximum speed in the decanter bowl, causing the solids to settle on the bowl inner diameter. A characteristic feature of the bowl is its cylindrical/conical shape. Find out more about the decanter bowl.

The scroll is the transport tool in a decanter centrifuge. It rotates with a differential speed (in relation to the bowl) and transports the settled solids towards the conically narrowing end of the bowl. Find out more about the decanter scroll.

decanter centrifuge

There is a differential speed between the decanter bowl and the scroll, which is created by a gear unit. The differential speed determines the solid content in the outfeed and also offers other advantages. For more information, refer to differential speed.

To learn more about decanter centrifuge, please contact DC professional supplier of decanter centrifuge.

Drilling fluid decanting centrifuge used for recovery barite to remove small solid particles, reduce the mud solid content, to ensure the performance of the drilling fluid.

Decanter centrifuge is a mechanical equipment which utilize the principle of centrifugal and sedimentation and can carry out continual separate the suspend liquid with density difference. The centrifuges which made by out factory can clarify, dehydrate and classify the suspensions with 0.002-3 mm solid-phase particles and thickness range at 0.5~40%.

centrifuges

Following the increasing of market request, more and more manufacturer can supply decanter centrifuge and used in many fields. Different manufactures have different designs and efficiency. The following is DC Solid control decanter centrifuge main advantages which is suitable for using in oil&gas drilling, waste water treatment and other industries.

decanter centrifuge

Advantages of DCLW series decanter centrifuge
1. Stainless Steel 316 bowl, conveyor and main body resist corrosion and prolong service life.
2. Tungsten alloy tile protects conveyor from wearing and increases solids conveying efficiency.
3. Replaceable tungsten carbon allay ring protects solids discharge port.
4. German FAG or Sweden SKF Bearings
5. Electrical components: SIEMENS/Schneider, ATEX or IEC Ex for option.
6. 3 overload safety protection: the first is the safety protection device of the gear box, the second is the hydraulic coupler overload protection, and the third is the control panel with over currency protection.

You are welcome to contact Tangshan Dachuan Machinery to get more detailed infos, we will supply our best service for you.

Horizontal decanter centrifuge is not only can be used in drilling site, also can be used in textile industry. Now DC Solid control
produce a decanter centrifuge for Nigeria customer to process waste waster in textile factory.

A decanter centrifuge used in different industries with different special requirements, for example, the material of decanter centrifuge used in textile is different with drilling site. Usually the drilling site centrifuge drum material is stainless #34, moreover the textile centrifuge drum material is stainless #316 whose corrosion resistance is better than stainless #304.

centrifuges

Now, the decanter centrifuge is finish production and waiting to paint. We will painting three times ( Japan Kansai spraying epoxy zinc rich primer 60um + intermediate paint 60um + polyurethane paint 60um) which can fully meet the international standards.

dcanter centrifuge

DC Solid control can design different lengths and diameter of the drum geometries, decanter centrifuge from DC solid control can be
applied in any processing environment that requires a separation step between solids and liquids. DC Solid control’s decanter
centrifuges provide meticulous control, low cost and high reliability.

DC Solid control decanting centrifuges are designed to deliver high fluid recovery rates and efficient solids control. Together, that adds up to a significant reduction in the operator’s total fluids cost and less waste for disposal.

centrifuge

Benefits: Increased Operational Efficiencies

Decreases drilling costs & waste volume.
Comes in various sizes to meet your need.
Can optimize selected unit for maximum solids removal & barite recovery.
Provides optimal torque control, high separation efficiency & high flow capacity.
Maximized internal wear surfaces extend the unit’s operating life before a scheduled rebuild is necessary.
Provides sufficient spare capacity within operations for quick change out if an unexpected breakdown occurs.

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Design Advantages:

• Built for removing colloidal-sized drill solids and weight material or liquid phase recovery.
• Bowl speed adjustable from 1,373 to 4,000 rpm with 375 to 3,100 Gs of centrifugal force.
• Cut points of 2 microns attainable
• Pond depth easily adjusted
• Mechanically rugged design for oilfield applications
• Automatic shut-down features:
– Thermal overload
– Excessive vibration
– Feed pump
– High torque
– Open covers

Drilling mud is an integral part of most drilling operations, acting as a lubricant to protect the drilling equipment and the property being drilled. The drilling mud, also called drilling fluid, enables the solids being bored to travel to the top of the hole while they are suspended in the fluid.

DC Centrifuge Systems can provide solid-liquid separation technology to your drilling mud application, enabling reuse of the material and more efficient and cost- effective disposal. Ruggedly built and skid mounted, decanting centrifuge units designed for oilfield and industrial solids control service, can be especially effective for barite recovery, drilling mud, solids control, and drilling fluid / mud cleaning and process water treatment.

bowl

Decanter centrifuges are used to process unweighted and weighted, water-based and oil-based drilling fluids. Oilfield decanter centrifuges mechanically increase the gravitational force exerted on the liquid and solids mixture present in the mud system. Centrifuges can apply over 3,000 G-forces to separate heavier solids from the lighter solids.

decanter centrifuge

Mechanical separation of solids from the mud system through the use of a decanter centrifuge is a highly effective means of maintaining proper mud weight and viscosity. When used in conjunction with other solids control equipment, decanting centrifuge enable users to maintain the mud properties within the prescribed range as per the drilling program.

Centrifuges commonly used for oilfield and gas well operations providing efficient solids control while significantly reducing the operator’s total mud cost and minimize waste disposal volumes.

Decanter centrifuge has become a major processing tool in a wide range of liquid/solid separation applications. The solid-bowl scroll-discharge centrifuge-now almost universally known as the decanter centrifuge-has, indeed, become the workhorse of a wide range of liquid/solid separation activities.

Its application to the dewatering of waste sludges has made it a most valuable tool in combating environmental pollution. This has made the decanter a well- known and widely appreciated piece of equipment.

decanter centrifguge

Although a complicated of machinery, the decanter centrifuge embodies a simple principle, that of the screw conveyor. In basic term, the decanter comprises a solid cylindrical bowl, rotating at high speed. Inside the bowl is a scroll( screw conveyor) rotating at a slightly different speed. The differential speed between bowl and scroll provides the conveying motion to collect and remove the solids, which accumulate at the bowl wall.

centrifuge

A slurry of liquid and suspended solids is fed along the centre line, to some fixed position within the bowl wall by the centrifugal force. This same force then cause the suspended solids to settle, and accumulate at the bowl wall. The clarified liquid then flows along the bowl, to leave at one end of it, over some kind of weir design, which sets the level of the liquid surface in the bowl.

The other end of the bowl is sloped inwards, towards the centre, thus providing a beach, up which the solids are conveyed, to be discharged from the bowl, at the top of the beach. Whilst the solids are conveyed up the beach,some, hopefully most, of the entrained liquid drains back into the pond, to join the liquid flow towards the
far end.

In order to fully understand how a decanter centrifuge operates, we must first define what a centrifuge does. In many industrial jobs, solid material often mixes with liquids, contaminating water supplies or turning mud into sludge. A decanter centrifuge is useful in that it separates solids and liquids, and has become an essential component of water waste facilities and the chemical, oil, and food processing industries. Moreover, without a centrifuge, many of these companies would become so inefficient they could not function.

centrifuge

Decanter centrifuge is used for the separation of two or more phases of different specific gravity, in particular for the clarifying of liquids in which suspended solids are present. The separation of solids and liquids takes place within a cylindrical/conical rotating bowl, upon the periphery of which the heavier solid phase collects and is continually removed by the internal conveyor.

conveyor

Standard features
Two- three phase design.
Conveyor and bowl in carious stainless steel: AISI414. AISI304.
Wear protection of conveyor coils in tungsten carbide.
Wear protection( interchangeable) of conveyor diffuser.
Fixed differential speed variation.

decanter centrifuge

As the professional advanced decanter centrifuge supplier, DC Machinery has won high recognition and praise from domestic and abroad with science core technique and a lot of innovative patents. At present, DC Machinery’s business scope mainly covers China mainland, Commonwealth of Independent States, North Africa,Australia, U.S.A.and etc. And we can design all kinds of treating capacity decanter centrifuge according to customers requirements. So if you need different models which used all kinds of industries please contact us. DC Decanter centrifuge can meet your any requirements.

We have already finished the manufacture of DCLW360-1200VFD decanter centrifuge for Arabia client. The centrifuge is used to process the waste mud in drilling field. According to 5 days communication, the Arabia client decided to purchase it from our company, because we can provide the best equipment and mature service for he.

The DCLW decanter centrifuge is a variable frequency centrifuge, it has an dependent electric control cabinet can control the rotary speed according to requirements.

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DC high-speed variable frequency centrifuge with its unique advantages, is increasingly favored by more and more users. After concentrated study of our engineers, centrifuges produced by DC Solidc control have the following characteristics:

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1. Different working speed can be set according to actual need, thus achieving the purpose of energy saving.
2. Fast dynamic response and accurate speed difference adjustment can greatly improving the content of dry material in the wastes.
3. Switch between speed and torque is quite convenient, which can improve working efficiency.
4. The device can be used to separate solid particles whose diameter is above 2 microns.
5. Explosion-proof electronic control cabinet adapts explosion proof fan to cooling and heating tape to deice and defrost.

As the professional advanced decanter centrifuge supplier. At present, DC’s business scope mainly covers China mainland, Commonwealth of Independent States, North Africa,Australia, U.S.A.and etc.

Before centrifuge and Hydrocyclone input oil drilling solid control can control drilling fluid solid phase content method only has shale shaker and dilution.

So the small particles can’t be eliminated by shale shaker only according dilute to control the solid phase content. In the process of using aggravating drilling fluid, if the solid phase content reach to the maximum volume and drilling cuttings constantly enter into drilling fluid, it needs continual replenish pure water to control drilling fluid viscosity.

At the same time need add barites to control drilling fluid density, so will produce the surplus drilling fluid, the processing cost is expensive.

In order to solve the problem, horizontal spiral sedimentation centrifuge begin used in solid control system and gradually become the important solid control equipment.

When centrifuge operate, the drum high speed rotate, drilling fluid enter into the drum according centrifugal pump, because the effect of centrifugal force improve the suspended solid phase sedimentation speed and separation efficiency, drilling fluid obtain rapidly solid-liquid separation.

At present, in horizontal solid control process, drilling fluid centrifuge is deemed to the last processing equipment. Shale shaker and hydrocyclone is used to separate and eliminate big drilling cuttings, centrifuge is used to separate and eliminate small particles and supper fine particles, this is the big difference of centrifuge, shale shaker and hydrocyclone.

Using centrifuge eliminate can increase viscosity and shearing force, and also can recover more value big size aggravating solid phase.