Category Archives: Decanter Centrifug

The decanter centrifuge has been widely applied in drilling fluids solids control system. Due to the high rotation speed provided by decanter centrifuge, if any abnormal situation happend in use, stop running and check for solution immediately.

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Solutions to common problems of decanter centrifuge:

Problem 1: excessive vibration of decanter centrifuge.

Reasons and solutions:

1. The solids particles settled in bowl have not been cleaned thoroughly–clean it.

2. Defective shock absorber–change it for new one.

Problem 2: overtemperature of bearings. (above 75℃)

Reasons and solutions:

1. Lack of lubricating oil–oiling the bearings.

2. Wear of bearings–change the damaged bearings.

Problem 3: the bowl doesn’t work when the main motor is activated.

Reasons and solutions:

Main motor overload for excessive solids particles set in–clean the bowl and adjust the grout intake.

Problem 4: abnormal noise is heard from bowl.

Reasons and solutions:

1. unsuitable usage of lubricating oil, such as improper oil type or volume–check and adopt suitable oil.

2. bearings damaged–change for new ones.

The professional treatment of drilling fluids is essential to guarantee the perfect drilling process while simultaneously adhering to the mandatory environmental protection requirements. DC Solid control company supports this process by using high-performance centrifuges in which a robust, flexible and user-friendly design is of the utmost importance.

decanter centrifuge

Continuous treatment of the drilling fluids with DCLW centrifuges ensures that the process sequences are smooth. Our centrifuges reliably separate unwanted solid materials, thus ensuring that no contaminated fluids pollute the ground and sea water, and that drilling fluids can be reused on a permanent basis.

drilling fluid centrifuge

DCLW centrifuges can also recover the relatively expensive heavy mineral, barite, which is added to increase the weight and density of the drilling fluids. Our centrifuges are so flexible that they can be used to both, to purify the drilling mud and to recover the barite.

If you want to choose more models decanter centrifuges, please contact us. We can assist you to get more infor about it.

Decanter Centrifuges are popular solid-and-liquid separators used in multiple industries for a wide array of products. Decanters are used for the extraction of liquids from large proportions of solids. It makes use of medium-low speed suspension to process larger capacities of solids as compared to a Basket Centrifuge.

decanter centrifuge

A typical example of this type of two-phase separation is the dewatering of sludge from municipal sewage plant or industrial waste water treatment.last week, DC Machinery shipped a set of decanter centrifuge for India wasterwater procesed factory. Th model of the centrifuge is DCLW350-1200 and treating capacity is 15m3/h. With high speed and frequency conversion.

In this case, the residual moisture in the dewatered solids determines the disposal costs and the centrate quality determines the pollution load returned back to the treatment facility. Minimizing both must be achieved at the lowest possible cost, with the lowest possible polymer and energy consumption, with low maintenance costs and with the lowest possible number of required operating staff.

The decanter centrifuge consists of a solid bowl, which rotates and contains the process. A screw conveyor, contained within the bowl, turns at a slightly different speed from the bowl. If you have interest with it, please feel free to contact DC solid control.

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.

Decanter centrifuges

The principle behind a decanter centrifuge is based on the theory of gravitational separation. For example, if you fill a glass 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 glass. With the mud congealed at the bottom, the water will be forced upwards, creating a clear separation between the two.

The ability to purify a liquid makes decanter centrifuges ideal for waste water treatment facilities. However, there are variety of industries for which such centrifuges play an important role.

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.

Drilling mud decanter centrifuge is the fourth stage equipments for a drilling mud system.Drilling mud cleaning first stage uses drilling fluids shale shaker ,then second stage uses desander,third desilter,(now drilling mud cleaner is widely used to replace desander,desilter.

decanter centrifuge

With a horizontal oilfield decanter centrifuge, the mixture of drilling liquid and cuttings and solids enter into the centrifuge. When it enters the centrifuge, it gets spun at an extremely high rate, sometimes as much as 3000 times the force of gravity. When this happens, the solids will separate from the liquids. When they are separated, the drilling liquid can be decanted and eventually returned to the mud tank where it can be replaced into the borehole for efficient drilling.

One of the biggest advantages to having an oilfield decanter centrifuge is the size that it takes up. Compared to other solids control equipment, a centrifuge takes up less real estate.

On many oilfields the site footprint is not large enough to support a wide range of solids control equipment. A centrifuge is highly effective and efficient so you can separate solids from drilling liquids even on small drilling sites.

Decanters (decanter centrifuges) are “solid material oriented” centrifuges which can process liquids / suspensions with high solid material contents (up to ca. 60% by volume).

The decanter (decanter centrifuge) belongs the continuous sedimentation centrifuges with respect to the eduction of fluids as well as the eduction of solid material.

decanter centrifuge

Typical areas of use are:

Clarification of liquids and suspensions
Thickening of sludges
Dehydration of sludges and suspensions
Washing
Classification (wet classification of solid materials in a suspension according to grain size)
Extraction
Separation of 3-phase mixtures (two fluid phases, insoluble in each other, and a solid material phase)

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

The three phase decanter centrifuge. It is made of cone drum, spiral unloader, differential system, bearing base, engineer base, main motor, back motor and electrical system.

centrifuge

To be as a leader of wasterwater treatment company.  DC Solid control developed a 3 phase decanter centrifuge used in oil and gas field and all kinds industires wastewater treatment projects.

three phase centrifuge

All of our decanter centrifuges adopt the international advanced special structure design. The centrifuge has the advantages of superior quality and efficiency, with larger treating capacity , better separation effect and easy to operate.

The machine has the certificated of ISO9001-2000. Meachanical properties is higher than JB/T502-2004《spiral sedimentation unload centrifuge》standard.

Centrifuge for is fourth phase oil drilling rig fluid solids control equipment. Mainly separate particle sized 2-7microns. DC Solid control produced the best quality centrifuge working well in -40degree centigrade.

As we know, at the beginning centrifuge for drilling rig is from chemical and food industry, etc. But now, we find centrifuge for drilling fluid process is more advanced and professional.

centrifuge

Centrifuge Main work performance:

1. Centrifuge capacity

Treating capacity is larger than before. Such as there are some centrifuge can even treat
drilling fluid upto 4t

2. Centrifuge speed effect

We usually have two type centrifuge. Including common or middle speed and high speed centrifuge. Commonly, if we only choose middle speed centrifuge we can’t solve
all problems on drilling fluid. High speed centrifuge can separate drilling fluid as two part including water and drier objects. This will benefit environment much

3. Structure

On the structure, we change double motors to single motors driving this make construction more simple and compact.

So if you have interest with DC high quality centrifuge, please feel free to contact us.

Last week, our engineer went to the karachi, pakistan to adjust the decanter centrifuge for clients who are mainly focus on rice protein, according to 2 days commission, adjusting, and training, the users have already well know the decanter centrifuge.

centrifuge

DCLW Series decanter centrifuges provide exceptional performance when separating solids from 1 or 2 liquid phases in one single continuous process. The units are designed to handle a wide range of particles with diameters from 5 mm to a few microns.

With their high efficiency, continuous operation, low capital cost/capacity ratio, low maintenance costs and low energy consumption, the decanter centrifuges are ideal to use in a range of duties including process, food and waste applications.

decanters

DC Machinery uses high-grade stainless steel for all parts that come into contact with the process, in order to avoid any risk of the corrosion associated with the use of carbon steel. Corrosion leads to product contamination, lack of balance, high maintenance and lengthy down time.