decanter centrifuge Archives - Drilling waste management,oil based mud treatment,drilling mud circulation system,drilling waste management companies

03/30/202105/16/2021

Dewatering principle of decanter centrifuge

The decanter centrifuge uses the principle of centrifugal sedimentation to separate the drilling suspension. The suspension enters the drum from the feed pipe through the liquid outlet hole in the screw pusher, and the solid particles are pushed to the inner wall of the drum under the action of centrifugal force and pass through the screw. The blades on the pusher are pushed to the slag discharge port at the small end of the rotating drum, and the liquid phase overflows through the overflow hole at the big end of the rotating drum. Such continuous circulation, in order to achieve the purpose of continuous separation. Sedimentation centrifuges belong to the category of horizontal spiral centrifuges, and the full name is horizontal spiral sedimentation centrifuges. crown

Dewatering principle of the decanter centrifuge: The decanter centrifuge uses the density difference between the solid and liquid phases, and under the action of centrifugal force, accelerates the sedimentation speed of the solid phase particles to achieve solid-liquid separation. The specific separation process is that the sludge and the flocculant liquid are sent into the mixing chamber in the drum through the inlet pipe, where the mixing and flocculation are carried out (if the sludge pump is dosing before the pump or the pipe is behind the pump, the flocculation reaction has been advanced) Due to the high-speed rotation and frictional resistance of the rotor (screw and drum), the sludge is accelerated inside the rotor and forms a cylindrical liquid ring layer (liquid ring area). Under the action of centrifugal force, the solid particles with larger specific gravity settle to the A mud layer (solid ring layer) is formed on the inner wall of the drum, and then the relative speed difference between the spiral and the drum is used to push the solid phase to the cone end of the drum. After pushing out the liquid surface (shore area or drying area), the mud can be dehydrated and dried. It is discharged to the slag discharge port, and the supernatant is discharged from the big end of the drum to achieve solid-liquid separation.

KOSUN- China Solids Control Leader&Drilling Waste Management Expert
Email: sales2@adkosun.com
WhatsApp/Wechat:+86 18792396268
Contact person: Lily Wang
Online consulting:
http://www.kosun.com
http://www.kosuneco.com

11/17/201707/20/2020

Drilling Waste Treatment Facilities-KOSUN

KOSUN has been China solids control leader & drilling waste management expert since 1992. KOSUN are searching drilling waste treatment facilities and disposal methods for 25 years, manufacturing quality drilling cuttings waste management system and serving the clients around the world.

Drilling waste treatment facilities- DC Series Decanter Centrifuge:

KOSUN DC Series Decanter Centrifuge is used to separate suspended solids ≥2μm in diameter and treat the drilling mud and fluids. It is especially effective when used in oilfield service industry, industrial service industry and especially in environmentally sensitive areas. This type of centrifuge is high in recovery rate, effective in solids control and remarkable in the reduction of cost spent on drilling mud resupplying and management. It is a very sophisticated dynamic balancing machine, able to operate stably with the whirling speed ranging from 0 to 3900 and generate centrifugal force of 3000G.

KOSUN Decanter Centrifuge can meet with different requirements of mud treatment under various drilling conditions, that can do sedimentation and separation for particles more than 2 μm. After treatment, the mud can achieve ideal viscosity and proportion, resulting in better recycling, high efficiency, saving and environment protection.

The series of centrifuge by our company has been developed many years with the continuous improvement and optimization design, which possesses the characteristics of good result of separation and settlement, as well as large quantity, reliable work, longer life, lower energy consumption, easy maintenance, smooth operation, lower noises, etc.

Drilling waste treatment facilities- Vertical Cuttings Dryer:

KOSUN vertical cuttings dryer for oil-based mud, by centrifugal separation principle, can effectively recover the cuttings in liquid phase composition, the solid phase becomes very dry, the drilling mud in the recovery, reduce the cost of drilling operation, but also reduces the the pollution of the environment, in accordance with international emission standards and environmental protection requirements. It can be used for drilling cuttings in land and ocean drilling.

With the continuous improvement of environmental protection requirements, the major oil fields are faced with the problem of drilling waste disposal.Need for more information about drilling waste treatment facilities,please contact us! (Editor:Kosun Lily.Wang)

Kosun- China Solids Control Leader&Drilling Waste Management Expert

Tel.: +86 29 87304914

Email: sales2@adkosun.com

Contact person: Lily Wang

Online consulting:

http://www.kosun.com

http://www.kosuneco.com

08/01/201710/23/2017

The Work Principle of Decanter Centrifuge

The work principle of decanter centrifuge:Centrifuges, like shale shakers and hydrocyclones, are solids control equipment, It achieves the separation goal by dividing the fluid into highdensity and lowdensity streams to separate one from the other. The processing is achieved by accelerated sedimentation. As the drilling ﬂuid passing through a rapidly rotating bowl, centrifugal force moves the heavier particles to the bowl wall, where they are scraped toward the underﬂow discharge ports by a concentric auger, also called a scroll or conveyor, which rotates at a slightly slower rate than the bowl. The separation of the heavier particles divides the processed ﬂuid into two streams: the heavy phase, also called the underﬂow or cake; and the lighter phase, which is called the overﬂow, light slurry or centrate. The heavy phase will be discarded while the lighter one will be returned to the mud tank to be further treated. The removal of these solids in order to control rheology and ﬁlter cake quality is the primary reason for centrifuging weighted drilling ﬂuids. When the ﬁnest solids are not removed, the only alternative means of reducing their concentration is dilution, always an expensive process.

Before hydrocyclones (desanders and desilters) and decanter centrifuge became available for drilling applications, shale shakers and dilution were the only means of solids control of drilling fluids. Consequently, solids too ﬁne to be separated by the shaker screens in use could be controlled only by dilution which was a costly procedure that generated large quantities of excess drilling ﬂuid. Decanter centrifuge was designed to remove the fine cut and at the same time reduce the drilling cost.

To meet the requirements of the development of modern drilling engineering, KOSUN developed and equipped with the explosionproof variable frequency control system which could adjust separation factor and drum rotational speed.By this new technology,make the centrifuge to adapt property changing of mud duringthe operation process,that make the treatment more effective and perfect.

Kosun- Solid Control System Company

07/06/201711/01/2017

How to Optimize the Performance – Drilling Waste Decanter Centrifuge

Drilling Waste

A centrifuge is a device that works on the concept of centrifugal force. The centrifuge makes an object rotate around its own fixed axis, making a circular motion at a very high speed. A decanter centrifuge does the work of separating the mixture of solid and liquid in industries.

In a decanter centrifuge , when the mixture if fed, the centrifuge is rotated at a very high speed. As the centrifuge spins in a circular motion, perpendicular force is exerted on the mixture. This causes the denser substance in the mixture to move out in a radial direction, that is, towards the surface of imaginary circle, while the substance that is less dense moves inside radially, that is at the center.

In drilling waste management in industries, this process helps in separating solids from liquids like oil, so that the oil can be recycled and reused, thus protecting our precious natural oils.
As a decanter centrifuge is used in many industries like Food Processing industries, oil industries, waste water treatment plants and chemical industries , it is very important to optimize its performance so that there is minimum wastage and maximum efficiency.

Criteria for improved performance of drilling waste decanter centrifuge:
   Before feeding the mixture to the decanter centrifuges , the mixture should preferably fed to a shale shaker. This shale shaker will separate big solids from the mixture. Then the resulting mixture must be fed to the decanter for further filtration. This will reduce the wear and tear of the decanter.
   Right amount of centrifugal force must be applied.
   The Speed of the decanter must be optimal so that the solids in the mixture are safely transported out of the machine.
   The decanter centrifuge is prone to abrasion as the solids in the mixture may rub against the walls of the device. So proper care must be taken by using abrasion resistant material especially at the input zone and at the solid output zone.

06/30/201706/30/2017

What is Important Equipment in Drilling Waste Management?

Drilling Waste management

Drilling waste management entails all processes and precautions required or recommended to ensure a safe environment. Drilling waste contains spent fluids and drilling cuttings that result from the drilling process. The spent fluids and drilling cuttings that are referred to as drilling waste have no use in the ensuing drilling process therefore must be disposed of.

However drilling waste treatment requires that the set environmental management standards and regulations are adhered to for the maintenance of a safe environment and also in order to avoid legal disputes and penalties.

Drilling waste management system therefore is concerned with using materials, substances and facilities in the drilling process that minimize drilling waste while at the same time employ proper disposal of waste in a manner that reduces toxicity.

Cuttings dryer is a core equipment in drilling waste management because it enhances environmental protection. Designated to meet the strict environmental conditions and guidelines imposed on disposal of cuttings and work site, it utilizes high-speed decanter centrifuge which optimizes liquid and solid separation in high volume processing.

The cutting dryer has the following characteristics
•   Rational structure built into the bedplate that adjusts and balances the distribution of vibrating motion.
•   Enhanced protection of spare parts with wear proof measures which include use of stainless steel for mesh screen and spiral scraper to guarantee long service life.
•   The torque sensor which helps regulate the motor in case of overload in operation thus ensuring reliable operation.
•   Viewports on cone header and bedplate making it easy and convenient to inspect and maintain the screen mesh and spiral scraper.
•   The equipment uses centralized lubrication station which facilitates ease of flow of lubricant to machine parts and reduces damage due to poor lubrication.

The cutting dryer is a welcome and indispensable aspect of waste management, designed with respect to maintaining a safe environment.

03/22/201707/20/2020

Drill Waste Management System by Kosun Manufacturer

Drill Waste Management System

Drilling waste management system of Kosun with high quality is well known all over the world.

Drilling waste management system is composed of: Vertical cuttings dryer , D Series Decanter Centrifuge , Screw Pump……

The term drilling refers to the very process of extraction of essential substances like oil and gas from the ground. The process is a couple of centuries old and today, it is a trillion dollar industry. It is in fact, one of the most important aspects measuring a country’s development and global position.

But like any other process, drilling also has some side effects in the form of unwanted waste. This waste generated as a result of drilling process is termed drilling waste and is not something that can be neglected, given the very large quantities generated each year. To shed further light into the fact, let us consider an example.

A study conducted back in 1995 showed a total quantity of 150 million barrels or drilling waste generated in America alone. Today the case is more severe as the extraction of the substances has also increased exponentially with equally rising demand.

So if you do the math, the amount that is generated each year on a global scale can amount to gigantic figures. Thus the process of drilling waste management and handling is of great importance in the present scenario.

Drilling waste may be in solid or fluid forms. Both types of wastes are generated at the end of an extraction process. But in order to handle or manage these wastes more effectively, experts classified them into two further subdivisions. They are namely, acceptable and non acceptable. As the name suggest, the first one is less dangerous and would degrade causing little or no harm to the environment. But that is not the case for non acceptable wastes. These require more careful handling and if left unattended, they may cause catastrophic results in the future.

Various methods for managing and disposing drilling waste have been developed so far and most of the organizations undertaking these activities have also put them to good use.