Drum dryers, coolers/ Vacuum drum dryer
Drum dryers are film dryers in which the product only comes into direct contact with the necessary drying temperature for a few seconds therefore ensuring particularly quick drying.
With this type of drying, the product to be dried comes into extensive contact with the heated drums.
Thanks to the many years of experience of DVA, this drying procedure can be implemented in a way more gentle to the product by using a vacuum.
Various application possibilities
•Used for the drying of solutions, suspensions and/or doughy or pasty substances.
Principle of two-drum dryers/coolers
Drum dryers are used for the continual drying of solutions, suspensions and pastes of different consistencies and viscosities. The drums are usually heated with steam or thermal oil. Using a dosing system, the wet product is distributed between the drums. The gap between the drums can be set between 0.1 and 2 mm.
The wet product applied is distributed evenly on the hot drums and the moisture content evaporates during the partial rotation of the drums. After approximately a ¾ turn, the now dry product is removed by a scraper. Depending on its consistency, it falls as a film, in scales or as a powder and can be fed into the next processing stage via the appropriate conveyor.
Operation at normal pressure and vacuum possible.
The apparatus consists of a sturdy metal housing, which contains the drums, scraper and the loading and discharge mechanisms.
Drum dryers, coolers/ Vacuum drum dryer Drum dryers are film dryers in which the product only comes into direct contact with the necessary drying temperature for a few seconds therefore ensuring particularly quick drying.With this type of drying, the product to be dried comes into extensive contact with the heated drums. Thanks to the many years of experience of DVA, this drying procedure can be implemented in a way more gentle to the product by using a vacuum.Various application possibilities•Used for the drying of solutions, suspensions and/or doughy or pasty substances. Principle of two-drum dryers/coolersDrum dryers are used for the continual drying of solutions, suspensions and pastes of different consistencies and viscosities. The drums are usually heated with steam or thermal oil. Using a dosing system, the wet product is distributed between the drums. The gap between the drums can be set between 0.1 and 2 mm.The wet product applied is distributed evenly on the hot drums and the moisture content evaporates during the partial rotation of the drums. After approximately a ¾ turn, the now dry product is removed by a scraper. Depending on its consistency, it falls as a film, in scales or as a powder and can be fed into the next processing stage via the appropriate conveyor.Operation at normal pressure and vacuum possible.The apparatus consists of a sturdy metal housing, which contains the drums, scraper and the loading and discharge mechanisms.
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