Dry separation of solids
US4857177A · kind A · utility
1Cited by
6References
9Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jan 28, 1988 |
| Grant date | Aug 15, 1989 |
| Priority date | — |
| Expiry date | Jan 28, 2008 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB03B5/46
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Mixed scrap metal pieces 6 are sorted in a fluidised hindered settler containing sand, through which the pieces settle at a differential rate. The sand is fluidised by air from 20 and vibration-driven around a circular trough 2. A depthwise partition 14a sorts the pieces according to settling rate, whereafter they are removed up separate ramps 14 and 16. The sand is levelled preparatory to receiving the pieces 6, and only afterwards is it fluidised.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.