WORKING PRINCIPLE
The operation process in the WFE is simple but yet effective. Feed is introduced at the top of the unit and spread on the shell inner surface by the rotating distribution plate. Specially designed wipers wipe the feed thus creating and renewing the film. This thin film enables an efficient heat transfer even for highly viscous fluids. The low boiling component evaporates and passes through an entrainment
separator. This minimizes the carry over of liquid droplets along with the vapors. The vapors are removed through the vapor line to an external condenser (optional) and condensed. For specific applications which demand low pressure drop, the central section of the evaporator is provided with a condenser, thus making the unit a short path/molecular distillation unit. In this case, the vapors are allowed to condense on the outside of the tube bundle and flow out of the vaporator via the condensate outlet provided at the centre.
The high boiling component flows along the shell wall and is discharged from the product outlet. Wiper action is important in promoting downward flow. The product/concentrate should be in fluid form at the operating temperature. Different designs of rotors are available depending upon the product, its viscosity and the process pressure.
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MAIN DESIGN FEATURES
Low rotational speed
No bottom bearing
Higher power to take care of feed fluctuations
Chevron rotor with interchangeable panels for ease of cleaning
Double groove gasket for high vacuum WFE
Conical bottom with auger
Top vapour outlet Large internal condenser
Swing / Hinge wiper blades
Open rotor (no entrainment separator)
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ADVANTAGES
Evaporation at low operating temperature
Short residence time (few econds)
High heat transfer coefficients
Low pressure drop on vapor side
No degradation or loss of active ingredients
Self cleaning\wiping of the heat transfer surface
Suitable for viscous liquids
Continuous operation
Low maintenance
The scraper system pushes the liquid from a thin film through the rotation process, and hence it provides the appropriate evaporation efficiency and also reduces its operating time.
The high-precision pipe made from glass allows the liquid to create a unified thin film over the hot surface.
The Scraper system is built of SUS 316L and PTFE; all the other parts that come in contact with the liquid or gas are usually created from high borosilicate glass 3.3 and PTFE, as both the elements have an excellent corrosion resistance properties.
You can control the temperature and keep it to the absolute level. The Agitated Thin Film Evaporator can reach up to 260°c temperature.
A Self-cleaning roller Model, as well as the Scraper Model film-forming systems, are available with us.
INDUSTRY
Distillation, separation, concentration, stripping, deodorisation, degassing, reaction
Heat-sensitive, viscous, fouling and foaming products
Continuous processing
Pharmaceuticals: Purification of active pharmaceutical ingredients (APIs), concentration of heat-sensitive compounds, and removal of solvents from drug formulations.
Chemicals: Separation and purification of fine chemicals, resins, polymers, and specialty chemicals.
Food and Beverage: Concentration of flavors, fragrances, essential oils, and natural extracts.
Petrochemicals: Recovery of valuable hydrocarbons, removal of volatile impurities from oils, and purification of lubricants.
Biotechnology: Processing of bio-based materials, including the concentration of enzymes, proteins, and other biological products.
MODELS AND TECHNICAL SPECIFICATIONS
Model | Working Volume(L) | Max Working Volume(L) | Power (KW) | Speed(RPM) | Working Temparature e(C) | Cylinder Design Pressure (MPa) | Jacket Design Pressure (MPa) |
50 | 50 | 35 | 1.1 | ||||
100 | 100 | 70 | 1.5 | ||||
200 | 200 | 140 | 3 | ||||
350 | 350 | 230 | 4 | ||||
500 | 500 | 350 | 4 | ||||
750 | 750 | 450 | 5.5 | ||||
1000 | 1000 | 700 | 7.5 | ||||
1500 | 1500 | 1100 | 11 | ||||
2000 | 2000 | 1400 | 15 | 40 ~ 140 | |||
3000 | 3000 | 2100 | 18.5 |
APPLICATION FIELDS
DOWNLOADS
DOWNLOADS
ENGLISH
ENGLISH
UREA TO AMMOUNIA
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WFF EVAPORATOR
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LAB REACTOR
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