Centrifugal Scraper Thin-film Evaporator

This machine uses high-speed rotation to distribute the liquid into auniform film. It is an evaporator for evaporation or distillation under vacuumconditions. It consists of one or more jacketed heating cylinders and the filmscraping device inside the cylinders with high rotation speed.The film scrapingdevice continuously scrapes the liquid on the wall of the heating cylinder intoa thick and uniform liquid film which moves downward.At the same time, thecomponents with low boiling point rise and evaporate and it will be separated,concentrated, and then discharged from the bottom of the evaporator.

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Features

◆This machine is equipped with a centrifugal rotor. The sediment in the treatment liquid adhered to the inner wallsurface of the cylinder evaporation section can be quickly removed by a movable scraper. The evaporation efficiency inthis case can be increased by 40-69% in comparison to a scrapping evaporator with the fixed gap.

◆lt has high heat transfer coefficient, large evaporation capacity and high thermal efficiency.

◆Material heating time is short, which is between about 5 seconds and l0 seconds. This machine shows betterperformance when treating heat-sensitive materials.

◆Different types of scraper structures can be applied.The evaporator with horizontal scraper structure can also becombined to effectively adjust the material processing time in terms of concentration and evaporation.

◆The inner wall of the evaporation body is fine-bored and polished.

◆The equipment has features such as simple operation,convenient adjustment, automatic and continuousproduction under the sealed conditions.

◆The equipment only requires a small space, and it has a simple structure,which is easy to maintain, and can becoupled with other systems.

◆Various types of scraper structures are available, such as membrane pillar scraper, hinged scraper,fixed scraper.and W-type scraper.

 

Applications

◆This equipment is widely used in the evaporation and distillation of materialswhich involve solid particles,crystallization,polymerization,and scaling. It ismainly used across pharmaceutical industry,food industry. light engineeringindustry.petroleum industry.chemical industry. pesticide industry. biologicalindustry.environmental protection industry and other industries. It is especiallysuitable for the evaporation and concentration of materials with high viscosity.high possibility to scale, high heat sensitivity, and high concentration.

 

Principle

◆This machine uses high-speed rotation to distribute the liquid into auniform film. It is an evaporator for evaporation or distillation under vacuumconditions. It consists of one or more jacketed heating cylinders and the filmscraping device inside the cylinders with high rotation speed.The film scrapingdevice continuously scrapes the liquid on the wall of the heating cylinder intoa thick and uniform liquid film which moves downward.At the same time, thecomponents with low boiling point rise and evaporate and it will be separated,concentrated, and then discharged from the bottom of the evaporator.

 

Technical Specifications

 

Model

GBN1

GBN2

GBN4

GBN6

GBN10

GBN12

GBN20

GBN30

GBN40

Heat Transfer Area (m2)

1

2

4

6

10

12

20

30

40

Steam Pressure (MPa)

0.3

Vacuum Level(MPa)

-0.08

Evaporation Capacity (kg/h)

200

400

800

1200

2000

2400

4000

6000

8000

Steam Consumption (kg/h)

220

430

840

1260

2100

2600

4800

6600

8800

Motor Power(kW)

1.5

3.0

4.0

5.5

11

11

15

22

30

Agitator Speed (rpm)

250

250

136

136

88

88

88

43

35

Height (Reference) (m)

3100

4800

5680

6410

7200

7800

9850

11000

12000

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