Method and device for treating bulk products

摘要

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.