Method and apparatus for cooling hot material
AssigneeKrupp Polysius AG
InventorsOtto Heinemann, Heinz-Herbert Schmits
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Abstract
The invention relates to the cooling of hot, layered, granular material supported on an air permeable grate through which cooling air passes constantly. Some zones of the material layer have a higher temperature than other zones. Pulses of additional cooling air are passed through the higher temperature zones at such velocity as to enhance cooling and to relayer the material at such zones. In this way the degree of recuperation of the grate cooler can be substantially improved.
Claims17
A method of cooling a moving layer of hot granular material supported on an air permeable grate, said material having zones at different temperatures, said method comprising constantly passing a stream of cooling air upwardly through said grate and said material, and periodically passing pulses of additional cooling air upwardly through said grate and said material at higher temperature zones thereof.
Apparatus for cooling a moving layer of hot granular material supported on an air permeable grate, said material having zones at different temperatures, said apparatus comprising means for constantly passing cooling air upwardly through said grate and said material;
- and means for periodically passing pulses of additional cooling air upwardly through said grate and said material at higher temperature zones thereof.
Dependencies are inferred from the claim text.