Method and device for treating bulk products
US6926521B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 19, 2002 |
| Grant date | Aug 9, 2005 |
| Priority date | — |
| Expiry date | May 14, 2022 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF27D15/0213
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
Method and apparatus for treating, in particular cooling, bulk material which is lying on a conveying grate (10) in the form of a layer (20). The gas is passed through the grate (10) and the layer (20) from the bottom upward. The grate is moved forward and back in its entirety, with the layer of material (20) being held in place during the return stroke. The stroke frequency is selected to be sufficiently low for there to be substantially no vertical mixing of the layer of material (20). A blocking plate (30) or the like is provided for the purpose of holding the layer (20) in place. The avoidance of the vertical relative movement within the layer of material (20) improves the heat recovery.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.