Apparatus for granulating, pelleting, and coating and/or drying fluid materials
US4674198A · kind A · utility
Inventor
Key dates
| Filing date | Jul 22, 1986 |
| Grant date | Jun 23, 1987 |
| Priority date | — |
| Expiry date | Jul 22, 2006 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF26B11/028
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
The apparatus comprises a drum (10) adapted to be driven in rotation about a horizontal axis of rotation (A) and having an at least approximately cylindrical body (12) as well as two steep end walls (14), one at each side of the body (12). The two end walls (14) each include a radially outer crown of ring sectors (20) which are inclined in overlapping relationship such that their leading edges (22) in the operating direction of rotation (26) of the drum (10) are disposed axially further outside than their trailing edges (24). A gap-like passage (28) each is formed between adjacent ring sectors (20). The material (58) being treated may exit through these passages upon rotation of the drum (10) in reverse sense. The ring sectors (20) are followed radially inwardly by a central portion (18,42) of the respective end wall (14) which portion the material (58) cannot penetrate. This makes sure that the material (58) will revolve without disturbance within the forwardly rotating drum (10).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.