Cooling apparatus
AssigneeKrupp Polysius AG
InventorsHeinz-Herbert Schmits, Hermann Niemerg
Life of this patent
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Abstract
The cooling apparatus which is preferably constructed in the form of a grate cooler contains in its material inlet portion a material transfer arrangement with at least two rows lying behind one another of transversely extending air boxes which can be supplied with air and have upper surfaces with air holes. The clear opening width of these air holes (area for the air to pass through) is adjustable, so that all air boxes can be supplied independently of one another with adjustable quantities of air. In this way the streams of cooling air can be adapted to differing local ranges of grain sizes of the clinker on the material transfer arrangement.
Claims14
In cooling apparatus for granular material precipitated from a kiln having a material discharge end, said apparatus including a cooling grate having an inlet end, and material transfer means bridging the discharge end of said kiln and the inlet end of said grate for transferring material along a path from said kiln to said cooling grate, said material transfer means being inclined downwardly towards said grate and having at least two rows of air boxes below and extending across said path, each of said air boxes being connected to at least one cooling air blower, the improvement wherein each of said rows of air boxes has an aerating base comprising overlying sheets, each of said sheets containing multiple perforations, means for moving the sheets of each of said boxes relative to one another between positions in which the respective perforations are in and out of registration with one another thereby to adjust the amount of air that may flow through said perforations, and means for adjusting the air supplied to each of said boxes, thereby enabling an optimum flow of cooling air through said perforations to be achieved.
Dependencies are inferred from the claim text.