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Difference between revisions of "Ribbon Dryers"
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[[File:Resize_image.aspx.jpg|200px|thumb|right|Ribbon Dryer]] | |||
The '''Ribbon Dryers''' require low capital cost because drying is completed in the same time and vessel is used for transferring and mixing. The ribbon dryer can be applied for low temperature drying, reaction, crystallization, extraction of useful liquids and recovery of solvents. | |||
The Ribbon dryer provides conductive heating of materials through a thermal fluid jacket on the mixing vessel resulting in a flash evaporation of volatile components such as water or organic solvents. The material agitation or transfer exposes the material to the open space at the top of the mixer. In order to continue to drive the evaporation, the vapor in this free space is removed either by the assistance of a conventional fan or by convection. | |||
===Salient Feature=== | |||
* Good control of end material temperature | |||
* Control of batch drying time | |||
* Suitable for drying of either water or organic solvents | |||
* No or low dust generation, reduces chances for dust explosions that can occur in convective type dryers | |||
* Residence time can be adjusted to allow for the removal of "bound" moisture | |||
* Low capital cost as the drying is accomplished in the same time and vessel being is used for transferring or mixing | |||
* Control of batch drying time available | |||
* Provided with good control of end material temperature | |||
* Suitable for drying of either water or organic solvents | |||
* No or low dust generation, reduces chances for dust explosions that can occur in convective type dryers | |||
* Residence time can be adjusted to allow for the removal of bound moisture | |||