Category Archives: Decanter Centrifug

Oil sludge is a mixture consisting of oil, water and solids. The treatment on oil sludge would recover much oil and water for reuse. Also it is an ideal solution to for the solids disposal. More oil and water recovered, more energy and resource could be saved. DC oil sludge treatment plant mainly include decanter centrifuge, oil water separators and thermal desorption unit.

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What equipment available from DC for Oil Sludge Treatment?

Shale Shaker for coarse solids separation
Decanter Centrifuge for fine solids separation or water and oil separation.
Polymer dosing system for better oil sludge demulsification
Dewatering System for ultra fine solids flocculation
Oil Water separators for two phase liquid separation.
Thermal desorption unit for minimize the oil on the solids down to 0.3%.

mud system

Oily Sludge Treatment Process

The main technology we used to dispose of the oily sludge is pyrolysis. Let’s see the specific process of working,
1. Collect all of the oil sludge together and then unload them to the workshop. Most of our oily sludge pyrolysis plants are installed in the open air. And then use our auto screw feeder to feed them into the pyrolysis furnace.
2. Under an oxygen-free, high temperature and sealed environment, the three main components of oil sludge, oil, sludge, and water, will be decomposed.
3. When the temperature rises to a certain degree, oil gas will come out. Thereinto, heavy particles in the gas will be liquefied into heavy oil and then dropped into the heavy oil tank; light particles in the gas will rise up and liquefied into light oil in the horizontal tube condenser and then also be reserved in the oil tank.
4. The slag will be automatically collected during the process.
If you have interesting with the oil sludge treatment system, please contact DC office to get more info about it.

 

DCLW series Industry Decanter centrifuge is widely used in wastewater treatment, crude oil recovery, coal tar recovery, palm oil recovery, fruit juice production, protein production, DC Solid control production, starch production, food waste treatment, etc. with VFD, and PLC Control, can choose 2/3 phase separation.

Our Centrifuge Drum and spiral parts titanium welding with 304/316 / 316L/321 stainless steel, stale performance and long service, warmly welcomed by the customers at home and abroad.

decanter centrifuge

DCLW Decanter centrifuge is driven by two motors. The main motor drives the drum and the outer casing of differential through belts while the auxiliary motor, after the differential shifting speed, drives the spiral propeller. This will make the drum and the spiral propeller rotate in the same direction with a certain differential speed.

decanters

Decanter centrifuge are used to process unweighted and weighted, water-based and oil-based drilling fluids (muds). Mechanical energy is utilized to increase the gravitational force exerted on solids that are present in the mud system.oilfield Decanting Centrifuge are able to apply over 3,000 G-forces on the liquid/solids mixture, which separates the heavier solids from the lighter solids. Additionally, high G-forces separate fine solids from liquid.

 

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.

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 centrifuge are used to process unweighted and weighted, water-based and oil-based drilling fluids (muds). Mechanical energy is utilized to increase the gravitational force exerted on solids that are present in the mud system.

Oilfield Decanting Centrifuge are able to apply over 3,000 G-forces on the liquid/solids mixture, which separates the heavier solids from the lighter solids. Additionally, high G-forces separate fine solids from liquid.

decanters

Last week, DC Solid control company shipped 3 sets of Middle decanter centrifuge to Saudi Arabian used for oilfield to treat unweighted drilling fluid. The model of the three sets decanter centrifuges are DCLW450-1000. And the main specification as below:
Drum diameter: 450mm
Drum Length: 1000mm
Drum Speed/rpm: 1480rpm
Main Motor Power: 22kw-IV class
Back Motor power: 5.5kw-IV class
Max treating capacity: 40m3/h
Separation factor: 548G

centrifuge

Such decanter centrifuge applies to solid liquid separation of suspension liquids with solid phase particle equivalent diameter ≥ 3μm, weight concentration ratio ≤10%, volume concentration ratio ≤70% or solid liquid density difference ≥0.05g/cm . HSS has different series of decanter centrifuges with bowl diameter from 220 ~ 1100mm. The machine can be also sorted by bowl type, such as thickening, dewatering, classifying, clarifying etc., to be fit for different separations.

Please contact DC Solid control to get more detailed information about all kinds of decanter centrifuges.

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.

centrifuge

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

Decanter Centrifuge is designed for the drilling mud solids control and oilfield waste management, wastewater processed and HDD drilling site. Today, DC Solid control shipped a set of high speed decanter centrifuge to UAE for HDD Field.

The high speed centrifuge is VFD drive decanter centrifuge with variable speed allows drilling contracor or mud service company to do the barite recovery, fine/ ultra fine solids separation,dewatering centrifuge. 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.

drilling centrifuge

The model of this high speed centrifuge is DCLW355 Series. DCLW355 Decanter Centrifuge is the most popular size centrifuge in the oil drilling industry. It can be used for fine/ultra fine solids separation, barite recovery and zero-discharge dewatering. With it’s removable legs, the DCLW355 Decanter Centrifuge can be used on solids control mud tank or the telescopic skid for drilling waste management.

centrifuge

The bowl diameter of the DCLW355 Decanter Centrifuge is around 14inch (360mm) with bowl length 50inch (1270mm), 3.5 is good bowl length/diameter ration for oil drilling mud. DCLW355 Decanter Centrifuge is driven by main motor and back derive motor with High Torch Sun-Wheel Gear Box, DC have the fixed speed available with different pulley for option to change the centrifuge speed, and VFD drive with PLC control available for your different applications.

 

Decanter centrifuge is the third phase solid separation equipment of drilling fluid mud system. This week DC Solid control shipped 2 sets of Middle decanter centrifuge to Russian. The model of the Middle centrifuge is DCLW450-1000 Series which is a professional unit used for drilling fluid cleaning system.

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The main specification as below:

Drum dia:450mm
Drum length: 1000mm
Treating capacity: 45m3/h
Main Power: 22kw
Back Power: 11kw

The Operation Principle of Drilling Mud Decanter Centrifuge

The drilling fluid decanting centrifuge is driven by two motors. The main motor drives the drum and differential shell rotation by the belt . The vice motor drives the spiral through the differential variable speed . The drum and spiral
rotate together in the same direction, but at different speeds . Separate the solid phases in the drilling mud by the centrifugal sedimentation principle. Suspending fluids is pushed into the rotor drum through the inlet pipe and under
the force of screw propeller, under the effect of centrifugal force, the solid phases will be pushed onto the inside wall of the drum, pass the impeller on the screw propeller and be discharged from the exhaust hole at the small side of
the drum. The fluids is excreted from the overflow hole of the large end. So continuous circle like above to achieve the target of continuous solid-liquid separation.

DCLW decanter centrifuge adopts centrifugal force to separate solid particles out of drilling fluid.Different solid or particle have different density and flow speed,some decanter centrifuge also can separate particles as different size
and density DCLW decanter centrifuge is widely used in oil and gas drilling,chemical,foodstuff,pharmacy,mineral beneficiation,water treatment,etc.

DC Decanter Centrifuge is designed for the drilling mud solids control and oilfield waste management. DC VFD drive decanter centrifuge with variable speed allows drilling contracor or mud service company to do the barite recovery, fine/ ultra fine solids separation,dewatering centrifuge.

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.

decanter centrifuge

Yesterday, I got an email from a lients who purchased of drilling fluid centrifuge last year and said the centrifuge working well and have no any spare parts to change until now, meanwhile attached two pictures.

The decanter centrifuge are used to process unweighted and weighted, water-based and oil-based drilling fluids (muds). Mechanical energy is utilized to increase the gravitational force exerted on solids that are present in the mud system.oilfield Decanting Centrifuge are able to apply over 3,000 G-forces on the liquid/solids mixture, which separates the heavier solids from the lighter solids. Additionally, high G-forces separate fine solids from liquid.

drilling fluid centrifuge

Typically,oilfield decanting centrifuge is the final processing units in the arrangement of solids control equipment. Decanting centrifuge preceded by gas busters, gumbo removal equipment (if utilized), shale shakers, mud Cleaners (if utilized), Vacuum degassers and hyrdocyclones.

Horizontal Decanter Centrifuge is designed for efficient and continuous separation of solids from suspending liquids by sedimentation and decanting, through the centrifugal settling principle. Centrifuge dewatering combines a compact design with efficient solids dewatering for maximum cake dryness.

centrifuges

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 centrifuge

Features & Benefits of DCS Series decanter centrifuges
1. Fully enclosed design/operation delivers reduced odor for plant and operators
2. High capacity in a small footprint provides efficiency and minimizes building and capital costs
3. Maximum cake dryness reduces handling and disposal costs
4. Fully automated operation and efficient process control provides optimum performance with reduced labor costs
5. Simple shut-down and flush cycle for minimal water consumption
6. Robust SS construction for wetted parts provides extensive abrasion protection, maximum uptime, and low maintenance costs

To be as a more than 10 years manufacturer of decanter centrifuges. DC Machinery can provide all kinds of models centrifuges. If you have any requirements of centrifuges, please contact us freely.

 

 

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.

decanter centrifuge1

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.

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Do you know what factors determine the performance of decanter centrifuges ? Please carefully read as below.
1.the centrifugal force required for sedimentation of the solids
2.the clarification area necessary to “capture” the solids
3.the differential speed required to transport the solids out of the decanter
4.the hydrodynamic design, which determines the exact parameters for the turbulence
5.the design of the conveyor and beach sections, which are important for efficient solids transportation.

If you meet any problems of the decanter centrifuge, please contact DC Office to get the solutions.