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Centrifugal Extractor
Liquid-liquid extraction or solvent extraction is a separation process which is based on different distribution of the components to be separated between two liquid phases.
Describe
Working principle
Feature
Parameter
Centrifugal extractor introduction

Centrifugal extractor is a new type of liquid-liquid extraction and separation equipment, with fast and efficient advantages, it has essential difference in principle with traditional extraction equipments such as mixer settler, extraction column and so on. Centrifugal extractor adopt motor to drive the bowl with high-speed rotation, under the condition of shear force generated by bowl or blade rotation, two different density and immiscible liquids complete mixing and mass transfer; and separated rapidly by centrifugal force generated by high-speed rotation of bowl.

Work process

1.Mixing and mass transfer process

Light and heavy phases of solution enter in the internal mixing zone of shell from two feed inlets separately in a certain ratio, mixed and separated rapidly, to complete mixing and mass transfer process.

2.Separation process

Under the action of the feeder or turbine disc, the mixed liquor enter in bowl, in the cavity formed by web, it soon rotated with bowl synchronously, under the condition of centrifugal force, during the upward flow process, the heavier liquid is away from the bowl center and towards to the bowl wall, while the lighter liquid is away from the bowl wall and towards to the bowl center, clarified liquids enter in collecting chamber through their respective weirs and discharged from light and heavy phase outlets, to complete separation process.

 

Characteristic Of Centrifugal Extractor:

1.Simple and stable structure

Top suspension structure, no bearing and mechanical seal at the equipment bottom, no leakage risk, easy to maintain and save maintenance cost, long service life.

2. Energy-saving

Large capacity, more energy-saving (under the same capacity condition, the power consumption is 1/3~1/10 of traditional annual type.

3. Corrosion resistance

Equipment could be made by perfluoro polymer material, resistant to strong acid (hydrochloric acid, mixed acid etc.

4. Good effect of mixing and separation

Various hybrid structures could be chosen, good separation effect, it suitable for easily emulsified system.

5. Easy to change heavy phase weir

When changed liquid system, heavy phase weir could be replaced quickly, simple and easy operation.

6. Low liquid residual

Equipment with small valid volume.

7. High automation

It could realize timely monitoring online, optional on-line cleaning system for GMP standard, and adapt to both intermittent and continuous running completely.

Application fields:
  Oil water separation( crude oil/heavy oil/diesel and so on except water, salt);

  Pharmaceuticals( such as used for ethyl acetate, methylene dichloride, normal butanol, choroforom and so on);

  Extraction of chinese traditional medicine;

   Pesticide(malathion extraction and so on);

  Bioengineering(nutrient solution extraction and interferon extraction and so on);


  Chemical and fine chemical( catalyst extraction and so on);

  Hydrometallurgy( used mutilstage extraction and back extraction and so on to extract nickel, copper, uranium and other rare metals);

  Food( edible oil, spice, refined oil, food color and so on);

   Perfume industry;

  .Printing and dyeing industry( printing and dyeing wastewater treatment and recycle);


   Environmental protection( used multistage extraction and back extraction and so on technology to treat wastewater with phenol, oil-water separation of marine sewage, groundwater separation or extraction or purification        and so on);

   Cosmetics industry( to extract nutrient ingredient);
Technical information:

Model 

 Bowl diameter
(mm)

Mixture flux(l/h)

Pipe diameter
(mm)

Power(kw)

Dimension(mm)

Weight(kg)

CWL-25-M

25

10

φ10

0.18

2300*230*800

5.5

CWL-50-M

50

50

DN20

0.18

400*370*90

18

CWL-150-M

150

1000

DN40

0.75

620*630*1250

220

CWL-250-M

250

3000

DN50

1.5

750*750*1400

320

CWL-350-M

350

8000

DN65

2.2

950*950*1600

520

CWL-450-M

450

15000

DN100

4.0

1070*1070*1800

860

CWL-550-M

550

30000

DN100

4.0

1200*1200*1760

1320

CWL-650-M

650

60000

DN150

5.5

1380*1380*2250

2000

CWL-900-M

900

150000

DN200

7.5

1690*1690*2480

2500


Note:

1.The actual weight depend on the material

2. Materials mainly have polymer composites, fluoride material, SS304, SS316L etc.

3. Mixing flux in the above table is the maximum theoretical flux of the equipment.

4. The actual handling capacity is closely related with the liquid carrier system (such as the density, viscosity, degree of emulsification), mass transfer efficiency, separation effect and so on.

 

Relate Products
centrifugal extractor CWL20-M
CWL25-M
centrifugal extractor CWL50-M
CWL50-M
centrifugal extractor CWL150-M
CWL150-M
centrifugal extractor CWL550-M
CWL550-M
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