Apparatus for the drying of wet, pasty and/or fusible materials

US4276701A · kind A · utility

Assignee

• Richter Gedeon Vegyeszeti Gyar RT · HU

Inventors

• Istvan Takacs · Budapest, HU
• Peter Rudolf · Ludwigshafen, DE
• Bela G. Szabo · Scott Township, US
• Gyorgy Kerey · Budapest, HU

Key dates

• Filing date: Nov 28, 1979
• Grant date: Jul 7, 1981
• Expiry date: Nov 28, 1999

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F26B17/20
• WIPO field: Chemical engineering
• WIPO sector: Chemistry

Abstract

A drier, especially for viscous materials, comprises a double-wall cylindrical vessel which is heated and to which the material to be dried is fed at one end with the dried material being removed at the opposite end. A drying gas inlet is connected to the drying chamber to pass the drying gas in counterflow or uniflow with the material and a shaft is rotatable along the axis of the chamber and carries adjustable disks with alternately inner and outer openings so that the material path through the vessel is deflected toward and away from the axis as the material passes successively through adjustable-length cells between these disks. All of the disks carry blades which scrape the material from the heated wall from the vessel and at least some of the disks carry rollers of predetermined spacing from this wall to adjust the particle size of the dried product.