Method and apparatus for burning inerts, particularly flotation addles middlings, clarification ponds and/or domestic refuse as a firing material in a grate firing

摘要

Inerts, particularly flotation addles and/or middlings are burned as a fire material in a grate firing and form a solid slag which is mechanically comminuted during the firing process. Comminution is accomplished with grate elements which are movable with respect to the slag and which are cooled by feeding combustion air therethrough, the combustion air being directly injected from the grate elements into the firing material.