Drying method
US4974336A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jun 20, 1989 |
| Grant date | Dec 4, 1990 |
| Priority date | — |
| Expiry date | Jun 20, 2009 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29B2009/168
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A method for use in drying particulate matter employing a drier comprising a cylindrical upper section, a frustoconical lower section, a rotatable shaft extending substantially the entire length of the interior of the drier, a plurality of axially spaced arrays of circumferentially spaced, radially extending stirring arms appended to the shaft, and at least two perforated frustoconical separators mounted within the drier in fixed, inverse and spaced apart relation to each other, and means for introducing a heated gas into the drier for contacting and drying the particulate matter, the stirring arms and separators cooperating to retard agglomeration of the particulate matter.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.