Patent · US Expired

Method and device for treating bulk products

US6926521B2 · kind B2 · utility

2Cited by
9References
37Claims
0Family size

Assignee

Inventors

Key dates

Filing dateMar 19, 2002
Grant dateAug 9, 2005
Priority date
Expiry dateMay 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.