Heating and/or cooling of vessels
US5503220A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Nov 3, 1993 |
| Grant date | Apr 2, 1996 |
| Priority date | — |
| Expiry date | Nov 3, 2013 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01J2219/00085
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
An apparatus for heating or cooling solid suspension slurry. The apparatus comprises a vessel (1) for containing the slurry and a draft means contained within a draft section of a draft tube (2) to circulate and maintain the suspension. Extending substantially the length of cylindrical section (26) of the draft tube below the draft means are plate heat exchangers (7, 21, 23, 25, 27, 29) connected in series. The plate heat exchangers may be recessed into the wall of the draft tube so as not to increase the pressure drop through the draft tube or may be arranged in pairs along the axis of the draft tube so that the proportion of the cross-sectional area of the draft tube occupied by the heat exchangers is minimized.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.