Agglomerating finely divided agglomerative materials in a rotating drum with co-rotating scraper
US3988114A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 31, 1975 |
| Grant date | Oct 26, 1976 |
| Priority date | — |
| Expiry date | Oct 31, 1995 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01J2/12
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
The agglomerating drum has a generally cylindrical configuration with an inner cylindrical wall. A scraper is rotatably positioned within the agglomerating drum in spaced relation to the inner cylindrical wall with its axis spaced from the axis of the drum. The scraper has a tubular body portion with a plurality of parallel rows of blades extending radially therefrom. Each of the rows extends lengthwise along substantially the entire length of the scraper body portion and follow a helical path having a single turn about the axis of the tubular body portion. Agglomerative material is introduced into the rotating agglomerating drum and forms a layer of agglomerative material on the drum inner cylindrical wall. The scraper is rotated in the same direction as the direction of rotation of the agglomerating drum and at a preselected synchronous speed with the agglomerating drum. The rows of parallel blades on the scraper form a plurality of spaced elongated generally longitudinal ridges and valleys in the layer of agglomerative material on the drum cylindrical wall. The ridges have a slight arcuate configuration and form less than a single convolution throughout the entire length of the …
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.