Method and apparatus for cooling particulate solids
US5167274A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Oct 7, 1991 |
| Grant date | Dec 1, 1992 |
| Priority date | — |
| Expiry date | Oct 7, 2011 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S165/92
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Free-flowing solid particulates are cooled in an apparatus comprising a housing containing a multiplicity of parallel, vertical, expanded heat exchanger plates spaced at 15-100 mm and having passages therebetween. Each plate has continuous flow channels for cooling fluid therein. A fluid inlet and outlet are attached to the flow channels in each plate and common fluid inlet and outlet headers are attached to the inlets and outlets, respectively. A feed hopper for feeding particulates to the passages is positioned above and attached to the housing. A discharge hopper for receiving cooled particulates from the passages is positioned below and attached to the housing. The discharge hopper contains two adjacent parallel bins each having a swinging section operatively connected to an actuator activated by a level control means positioned in the feed hopper. Particulates such as fertilizer particulates, are fed into the feed hopper and pass downward in a mass flow regime between the heat exchanger plates where they are cooled with a fluid, preferably water, that passes through the plates. Cooled particulates collect in the discharge hopper from which they are discharged at a rate control…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.