Venturi dryer
Venturi drier
The Venturi drying system – unique to IPCO in this application – dramatically improves the casting of thin film materials, enabling the production of films and tapes to exceptionally narrow tolerances with no risk of skin or wave formation, faults or imperfections.
The Venturi drying system – unique to IPCO in this application – dramatically improves the casting of thin film materials, enabling the production of films and tapes to exceptionally narrow tolerances with no risk of skin or wave formation, faults or imperfections.
The Venturi dryer solution
The IPCO Venturi dryer forms an integral part of our thin film casting system, an end-to-end solution that gives you the process control to produce high-precision film products to thickness of 10–500 μm.
The effect of the Venturi at the drying stage is to create low negative pressure within the system, which draws drying air away from the product surface. This indirect drying, in conjunction with heat applied from below, results in consistent, contact-free evaporation with no risk of skin or wave formation – leading to an end product of exceptionally high quality.
The IPCO Venturi dryer forms an integral part of our thin film casting system, an end-to-end solution that gives you the process control to produce high-precision film products to thickness of 10–500 μm.
The effect of the Venturi at the drying stage is to create low negative pressure within the system, which draws drying air away from the product surface. This indirect drying, in conjunction with heat applied from below, results in consistent, contact-free evaporation with no risk of skin or wave formation – leading to an end product of exceptionally high quality.
Venturi drying system credentials
High precision
10–500 μm
Film thicknesses
Fast
30%
Shorter drying times
Efficient
0
Risk of skin or wave formation
How it works
Homogeneous, contact-free drying
Indirect drying is achieved through the use of a permeable metal foam-like material within the dryer, positioned above the drying film. A flow of tempered air is applied to the upper side of this material, creating a low negative pressure effect on the lower side, in accordance with the standard laws of pneumatics (the Venturi effect).
A constant suction flow is created and this, combined with heating from below the belt, extracts and evaporates solvent from the slurry. There is no direct contact with the surface of the product.
The result is a homogeneous indirect drying effect that delivers an end product of exceptionally high quality, with low stress and virtually no risk of wave formation, faults, or other imperfections.
Available as part of an integrated system or standalone solution
The Venturi dryer usually forms part of our end-to-end film casting system, but it can also be designed and supplied for integration into third-party process lines. Three main components make up our film casting lines:
a high precision slot die
a polished steel belt
the Venturi system
Additional drying segments can be incorporated behind the Venturi dryer, including impingement dryers, which are safe to use at this stage.
Indirect drying is achieved through the use of a permeable metal foam-like material within the dryer, positioned above the drying film. A flow of tempered air is applied to the upper side of this material, creating a low negative pressure effect on the lower side, in accordance with the standard laws of pneumatics (the Venturi effect).
A constant suction flow is created and this, combined with heating from below the belt, extracts and evaporates solvent from the slurry. There is no direct contact with the surface of the product.
The result is a homogeneous indirect drying effect that delivers an end product of exceptionally high quality, with low stress and virtually no risk of wave formation, faults, or other imperfections.
Available as part of an integrated system or standalone solution
The Venturi dryer usually forms part of our end-to-end film casting system, but it can also be designed and supplied for integration into third-party process lines. Three main components make up our film casting lines:
a high precision slot die
a polished steel belt
the Venturi system
Additional drying segments can be incorporated behind the Venturi dryer, including impingement dryers, which are safe to use at this stage.
Benefits
Venturi dryer: continuous casting system for the production of separators and ceramic tapes
IPCO’s single belt film casting units offer a range of benefits including ultra-efficient continuous production and the ability to cast very thin films to fine tolerances and to a quality unattainable by any other method.
The Venturi dryer brings the following key benefits:
Precise control of line speed, dryer temperature, belt heating, and air speed
A range of dry film thicknesses can be achieved according to requirement (from 10–500 μm)
Eliminates risk of skin and wave formation
Creates a process and results of outstanding reproducibility
Significant reduction in drying section length and drying time for increased productivity
Venturi dryer
IPCO process expertise
The Venturi dryer is just one part of our process solution for thin film casting and other advanced materials. Our expertise in this area means we can also support you with:
Product optimization for enhanced production
Up and downstream processes
Scaling up from product development to full-scale production
High-precision polished steel belts
Use this solution for
Processes supported
Film drying
Achieve consistent and thorough drying of films, optimizing production efficiency and product quality.
Achieve consistent and thorough drying of films, optimizing production efficiency and product quality.
Portfolio showcase
Our ScatterPro portfolio
Thin film casting systems
IPCO’s high precision thin film casting systems enable the production of film products to exceptionally narrow tolerances.
Super mirror polished belts
Special grade steel belts polished to achieve surface finishes for specific applications.
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