The Operation of a Decanter Centrifuge

The operation of a decanter centrifuge can be either batch or continuous and is not altogether dissimilar to other types of centrifuges. A metal or plastic cylinder fixed along a central axis houses the materials or solutions to be sorted. When a motor engages the axis perpendicular to this, it creates a rotational movement capable of creating gravitational pulls up to twenty thousand times that of normal gravity. This causes larger particles to separate out first in a radial direction allowing them to move toward the bottom of the cylinder while lighter materials move toward the top.

Decanter Centrifuge

In some decanter centrifuges a mesh is used to collect solids with liquids passing through to the outer area of the cylinder before being drained. In other models a helical extraction screw directs solids to one end and liquids to the other. If high enough acceleration is reached, the solids may even become compressed for easy removal. Both new and used centrifuges are available to purchase. As adjustable and fixed acceleration models are widely available, it is important to consider the parameters of a specific application before purchasing a decanter centrifuge. Capacity should also be considered with regard to the intended use as should the design and material construct of a decanter centrifuge as these materials must be compatible with both process liquids and solids to be sorted.

Decanter centrifuges utilize centrifugal force to speed the dewatering or thickening of slurries and suspensions in many industrial and commercial applications. While these centrifuges, like others, may also be used to separate liquids from liquids, they are more applicable in situations that require the separation of liquids from appreciable amounts of suspended solids.

Food and beverage, water treatment, oil, gas and pharmaceutical industries commonly employ decanter centrifuges for the classification of solids based on the sedimentation principle as well as the clarification of fluids resulting from the settling out of debris. Other industrial uses for decantation include solids recovery which enables many manufacturing facilities to recover and reuse valuable materials that would otherwise be disposed of along with wastewater.

While gravity alone is sometimes used, decanter centrifuges are essential in applications where the density difference of elements within a heterogeneous mixture is too small or the particles themselves are too small. Whereas normal gravity could take ages to sort these materials, the centrifugal force generated by industrial centrifuges speeds the process while producing drier solids. Dryness is important as both dewatering and drying materials helps to provide raw or processed substances that are lighter in weight than their immersed counterparts making for easier handling and lower transportation costs.

Kosun- Solid Control System Company

Brief description of Decanter Centrifuge

A decanter centrifuge is a device that can create a very fast rotation. A decanter centrifuge is basically used to dilute the fluid that is extracted from the gas or oil mine. Generally, the liquid that is extracted from a mine is of highly concentrated and coagulated. So, extracting minerals from them is practically impossible.  In order to thin up the extracted fluids. By using the rotational speed of a decanter centrifuge, the highly concentrated are turned into minerals extractable thin liquid. There are three basic designs of decanter centrifuges.

Decanter Centrifuge
Decanter Centrifuge

The first one is vertically oriented decanter centrifuge, the second one is horizontally oriented decanter centrifuge and finally the third one is conveyor or scroll decanter centrifuge. In the vertically oriented decanter centrifuges, the fluids or solids are gathered vertically. Vertical decanter centrifuge isvery effective for high temperature and high pressure work. A horizontally oriented decanter centrifuge gathers the fluids or solids generated from high rotation in horizontal orientation. A horizontally oriented decanter is very effective for high pressure works as it provides a strong organization due to its horizontal orientation. Lastly, a conveyor or scroll centrifuge is basically a rotating machine inside a bowl.

How does a decanter centrifuge work?

As it is mentioned before the process of a decanter centrifuge is a bit complex. Usually, a decanter centrifuge depends on sedimentation, differential speed and G force to perform its job. The sedimentation rate is an important feature for the centrifugal process. If the G force or centrifugal force is very high, the separation process becomes very easy and effective. The size and shape of particles and their level of concentration determine the sedimentation rate of any decanter centrifuge. The sedimentation rate also depends on the centrifugal force.

Another important issue for the functionality of a decanter centrifuge is the differential speeds. In a centrifuge two different parts rotate simultaneously. The first part that rotates is the exterior bowl and the second part that rotates is scroll conveyor. Sedimentation is gathered in the centrifugal cylinder as the result of varying speed of the two above mentioned separate parts. If the differential speed of a decanter centrifuge is too high, a little time is required to loosen up the concentration of waste fluids. So, it is very important to keep the differential speed of a decanter centrifuge minimal. Thus, a decanter centrifuge operates its functionalities. (Editor:Kosun Lily.Wang)

Features of KOSUN Decanter Centrifuge for sale

Solids control equipment decanter centrifuge is one stage of solids control system.Normally solid control system is consist of five stages, including mud tank, shale shaker, vacuum degasser, desander, desilter, decanter centrifuge. Shale shaker is used to separate the big solids with diameter above 75μm, and 45~74μm for desander, and 15~44μm for desilter. Sometimes desander & desilter are combined as Hi-volume mud cleaner. When air enters into the drilling fluids, vacuum degasser is used to separate the air. If no air in the mud, the degasser would work as a big agitator. All these equipments are mounted on the top of the mud tank. Decanter centrifuge is used in separating suspension of solid phase with particle diameter d>=2um for drilling mud and fluids handing. After separating the solids, the mud would be pumped into the borehole again.

KOSUN decanter centrifuge for sale features:

  1. Innovative design includes longer bowl for increased retention time, resulting in drier solids and finer cut points
  2. Big bowl Big Volume, high G force available
  3. Stainless steel bowl, scroll, compartment and cover resist corrosion and provide long service life.
  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 Sweden SKF brand bearings
  6. Electrical Components: SIEMENS/Schneider ATEX or IEC Ex for option.
  7. Screw pump & centrifugal pump feeding pump option available to meet different application.

As a solid control system manufacturer, KOSUN supply other solids control equipment for sale, including shale shaker, shale shaker screen, desander, desilter, vacuum degasser,decanter centrifuge , centrifugal pump, submersible slurry pump, shear pump, mud agitator, mud gun, drilling fluid mud cleaner, decanter centrifuge, mud tank, diesel tank, water tank, complete solids control system, etc.

Since its establishment in 1992, KOSUN has been the major solid control system supplier in the world. The products provided by KOSUN are extensively used in oil & gas drilling and workover, coalbed methane drilling, shale gas drilling, water well, geothermal well drilling, trenchless horizontal directional crossing projects, mine gravel staged treatment, tailings treatment, rive dredging works, municipal environment-friendly sewage treatment, industrial wastewater treatment, fruit juice purification, waste oil recovery and purification treatment, etc. (Editor:Kosun Lily.Wang)

Kosun- Solid Control System Company

Tel.: +86 29 87304914/86-13891934239

Email: sales@adkosun.com

Online consulting:

http://www.kosun.com

http://www.kosun.com/products/solids-control-equipment/

http://kosuncentrifuge.com

Solids Control Equipment Decanter Centrifuge for sale by KOSUN

KOSUN LW series decanter centrifuge is used in separating suspension of solid phase with particle diameter d≥2μm for drilling mud and fluids handling. Ruggedly built for oilfield and industrial services, it is especially effective in environmentally sensitive areas. It delivers high fluid-recovery rates and efficient solids control to significantly reduce the costs of makeup fluids and disposal. The decanter centrifuge is precision –balanced for smooth operation over long periods at speeds of 0 to 3900 RPM, generating centrifugal forces up to 3000G’s.

Decanter Centrifuge sale

 

 

 

 

 

 

 

Decanter centrifuge for sale by KOSUN

Decanter centrifuge for sale by KOSUN consists of a cylindrical rotor, a casing, an electric motor, and three lines for material to travel. The gas centrifuge is designed with a casing that completely encloses the centrifuge. The drilling mud decanter centrifuges can separate fine particles well, for separating 5~7μm particles in drilling mud, usually use medium speed decanter centrifuge, for less then 2μm, usually use high speed decanter centrifuges.

KOSUN decanter centrifuge features:

  1. Innovative design includes longer bowl for increased retention time, resulting in drier solids and finer cut points
  2. Big bowl Big Volume, high G force available
  3. Stainless steel bowl, scroll, compartment and cover resist corrosion and provide long service life.
  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 Sweden SKF brand bearings
  6. Electrical Components: SIEMENS/Schneider ATEX or IEC Ex for option.
  7. Screw pump & centrifugal pump feeding pump option available to meet different application.

As a solids control equipment decanter centrifuge manufacturer, KOSUN supply other solids control equipment for sale, including shale shaker, shale shaker screen, desander, desilter, vacuum degasser,decanter centrifuge , centrifugal pump, submersible slurry pump, shear pump, mud agitator, mud gun, drilling fluid mud cleaner, decanter centrifuge, mud tank, diesel tank, water tank, complete solids control system, etc.(Editor:Kosun Lily.Wang)

Kosun- Solid Control System Company

Tel.: +86 29 87304914/86-13891934239

Email: sales@adkosun.com

Online consulting:

http://www.kosun.com

http://www.kosun.com/products/solids-control-equipment/

http://kosuncentrifuge.com

Decanter Centrifuge Working Principle of Kosun Solids Control System

Decanter Centrifuge

Decanter centrifuge of drilling waste is the waste matter generated as a result of the very process of extraction of oil and gas from the earth, popularly known as drilling. This is an extensive and trillion dollar industry with a corresponding and gigantic waste production issue on a global scale. That is why; a new drilling waste management system called drilling waste management was introduced.

Decanter Centrifuge
Decanter Centrifuge

It consists of a series of processes from collection, management and containment of waste to subsequent treatment and disposal. Over the years, many techniques and methods were introduced for an efficient management of drilling waste. Also quite recently we saw more advancement and mechanization being brought into the whole process.

As a result of this, now we have instruments like decanter centrifuge to aid to the separation and handling of drilling waste. So let’s understand more about them and their mode of operation.

As the name suggest, the equipment uses decanter centrifuge forces to aid to the separation of desired and waste matters taking advantage of their differences in densities and other properties.

The mixed substance obtained from extraction is made to enter a disc or cone shaped structure that is rotated at a suitable speed. Because of the difference in natures of the unwanted and desired quantities, they are separated by combined effect of centrifugal and gravitational forces.

The fuel which is separated drops through the hole at the centre of the structure and the waste remaining in it is properly contained. For better gathering or collection of these waste matters, the walls of the discs are generally made with interspaces or slot like cavities.

The drilling waste progresses towards the walls of the disc and moves into a containment tank through the interspaces provided. As the machine consists of several moving parts, all components are to be kept smooth and clean to ensure optimum efficiency.

Drilling Waste Decanter Centrifuge Good Performance

Decanter Centrifuge

The main part of the drilling waste management system is the sedimentation centrifuge. Decanter Centrifuge is usually used for drilling waste treatment , mud and sludge and oil separation, etc.

There are some ways to maximize the performance of settling centrifuge:
• Operates with high G vibrating screens for water-based drilling waste or chips. After treating the waste with a vibrating screen, the material is fed into a settling centrifuge to separate small solid matter.
• Vertical cutting dryers are widely used in almost every borehole area. The use of decanter centrifuges and vertical dryer will help to deal with oil and synthetic drilling waste. The chips are first treated in a slurry shaker and then treated in a vertical dryer and then into a settling centrifuge.

drilling waste
drilling waste

• It is also important to choose the correct type of settling centrifuge. The details of the equipment must be discussed with the supplier and the manufacturer. Operators can understand the performance and efficiency by looking at machine data under similar conditions.
• The decanter centrifuge you choose must be based on your design. Some applications require high speed, while other applications require large bowl separation. Before purchasing the machine, please remember to summarize the clear picture in advance.
• The same model of the machine can also be slightly different in terms of feed technology, level and machine layout. Any change will seriously affect the performance of the machine.
• Last but not least, the machine should be operated by a professional operator. The dewatering machine requires a highly skilled operator’s function. A lot of things depend on the operator’s function. The main problem that most staff members suffer is the lack of skilled operators. So this aspect of the machine is as important as the rest.

Welcome to contact us if you need anything.

How does Decanter Centrifuge Work?

Decanter Centrifuge

Introduction: Decanter centrifuge is a very common equipment that is often found in an oil or gas drilling site. A decanter centrifuge is a very important machine for oil and gas drillers. A decanter centrifuge is basically used to dilute the underground fluids and liquids.

The main job of a decanter centrifuge is to rotate the drilling fluids and in doing so breaking the concentration of those fluids. The whole working functions of any decanter centrifuges is pretty much complex. Here is a discussion given below about how a decanter centrifuge works.

decanter centrifuges
decanter centrifuges

The way a decanter centrifuge works:  As it is mentioned before the process of a decanter centrifuge is a bit complex. Usually,  decanter centrifuges depend on sedimentation, differential speed and G force to perform its job. A decanter centrifuge needs a centrifugal force in order to loosen the fluid.

The sedimentation rate is an important feature for the centrifugal process. If the G force or centrifugal force is very high, the separation process becomes very easy and effective. The size and shape of particles and their level of concentration determine the sedimentation rate of any decanter centrifuge.

The sedimentation rate also depends on the centrifugal force. Another important issue for the functionality of decanter centrifuges is the differential speeds. In a centrifuge two different parts rotate simultaneously. The first part that rotates is the exterior bowl and the second part that rotates is scroll conveyor. Sedimentation is gathered in the centrifugal cylinder as the result of varying speed of the two above mentioned separate parts.

If the differential speed of decanter centrifuges is too high, a little time is required to loosen up the concentration of waste fluids. So, it is very important to keep the differential speed of a decanter centrifuge minimal. Thus, a decanter centrifuge operates its functionalities.

KOSUN is capable of providing customers with such three series as oil & gas drilling solids control equipment, centrifuges and drilling waste treatment equipment , including 25 categories of products.

Welcome to contact us if you need .

Decanter Centrifuge Defined Meaning

Decanter Centrifuge

Introduction: Modern gas and oil drilling sites are just a rigid manifestation of multi layered complex mechanism. Several gigantic equipments are set and operated in a single oil or gas drilling sites. The mechanisms of these equipments are very complex and very subtle. A very common equipment that is seen in an oil and gas drilling site is a decanter centrifuge.

A decanter centrifuge is a very useful equipment for any drilling site. Here in this article, we will try to provide a brief description about what a  really it is.

decanter centrifuge
decanter centrifuge

A brief description of a decanter centrifuges: A decanter centrifuge is a device that can create a very fast rotation that is basically used to dilute the fluid that is extracted from the gas or oil mine. Generally, the liquid that is extracted from a mine is of highly concentrated and coagulated. So, extracting minerals from them is practically impossible. In order to thin up the extracted fluids, a decanter centrifuge is used. By using the rotational speed of a decanter centrifuge, the highly concentrated are turned into minerals extractable thin liquid.

There are three basic designs of decanter centrifuges:

The first one is vertically oriented decanter centrifuges.
The second one is horizontally oriented decanter centrifuges.
The third one is conveyor or scroll decanter centrifuges.

In the vertically oriented decanter centrifuges, the fluids or solids are gathered vertically. Vertical decanter centrifuges are very effective for high temperature and high pressure work. A horizontally oriented decanter centrifuges gathers the fluids or solids generated from high rotation in horizontal orientation. A horizontally oriented decanter is very effective for high pressure works as it provides a strong organization due to its horizontal orientation. Lastly, a conveyor or scroll centrifuge is basically a rotating machine inside a bowl.

Welcome to contact us if you need.

Decanter Centrifuges Suppliers – Kosun Manufacturer

Decanter Centrifuges

Decanter centrifuges can perform well for a longer period if timely operation and maintenance of the device is carried out. The decanter centrifuge is a vital machine utilized in major industries like the oil, food, waste-water treatment and chemical industry. Hence the engineer has to have a good knowledge about the handling and maintenance of the machine.

decanter centrifuges,decanter centrifuges suppliers
decanter centrifuges,decanter centrifuges suppliers

Decanter centrifuges operation are as follows:
•    Prior to starting the machine the safety protective guards should be installed. When the machine is running, don’t open the guards.
•    Don’t touch the rotating parts or moving parts when the decanter centrifuge is in operation.
•    Stopping the machine during its operation is also forbidden.
•    Only in case of any unusual noise or vibration, the decanter centrifuges should be stopped and troubleshoot.
•    The rotating speed of the decanter centrifuge is mentioned in the instructions. Running the same more than the given active speed is forbidden.
•    The device should be plugged or unplugged only when the power is cut-off.

The maintenance of the decanter centrifuges are as follows:
•    For maintaining the decanter centrifuge for a long time the machine should not be stopped or adjusted when the power is on and the bowl is still rotating. It should be done only on stopping of it completely.
•    To open the cover of the collecting box, it should be opened suitably so that the cover should not close suddenly which can injure the operator.
•    The decanter centrifuges operators are required to read user manual and other related data, should have working knowledge and the requirement of operations of the machine. The operator should adhere strictly to the handling instruction of the machine.
•    Maintenance as the schedules can decreases the downtime thereby increases the production capacity.

Decanter Centrifuge Suppliers

Decanter Centrifuge Suppliers – Kosun manufacture with more than 20 years experience with API, IADC, ISO and CE certificated in solid control system.

Decanter Centrifuges are produced and supplided by decanter centrifuge manufacturers .

Decanter Centrifuge Suppliers – as the leading enterprise of solid drilling waste management and drilling waste management industry in China, Kosun is highly appraised by local customers with high quality products and excellent service. Kosun will continue to provide customers with better goods and services.

What are the Principles of Decanter Centrifuge of Kosun

Decanter Centrifuge

Decanter centrifuge separates the solid material mixed with some liquids that contaminates the water and converts the mud into sludge. It is an important component utilized in petrochemical, food processing and oil industries. These industries will not be able to function in the absence of Centrifuge. The centrifugal force is created by the decanter centrifuge and creates the centrifugal force by rotation.

Operational & Functional Principles of decanter centrifuge:
•    The principle of decanter centrifuge is based on the theory of gravitational separation. A component with high density settles at the bottom and the component with lesser density suspends upwards.

decanter centrifuge
decanter centrifuge

 

The decanter centrifuges increases the rate at which the component settles increases due to the use of continuous rotation. This force is from 1000 to 4000 times than the normal gravitational force. This method of separation gives fast results.
Example: When a glass is filled with mud and water, after few minutes the mud will settle at the base of the glass due to its weight. Since the mud is settled at the base become solid, the water comes upward that creates a separation between the mud and water mixture.

This method of separation by rotation can be compared to that of rides of amusement parks. In the same way the decanter centrifuges basically a bowl tube rotates at a very high speed. The bowl tube has an internal conveyor that moves at different velocity but in the same direction.

The decanter centrifuge is ideal equipment for treating waste water. There are various industries where these types of machines are vital.

The 2-phase separation method is used for Waste water treatment, sludge de-watering, and also food processing.

The 3-phase separation process separates two liquids like water and oil, which have different densities and cannot be mixed together, are separated. This 3-phase separation produces edible oil, bio-diesel and oil sludge.