Shaft cooler
AssigneePolysius AG
InventorBernd Helming
Life of this patent
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Abstract
The shaft cooler comprises a plurality of power-driven adjacent horizontal hollow perforated comminuting rolls. An upper section of the shaft cooler is adapted to hold a layer of material from 50 to 100 cm. deep above the rolls. Cooling air is supplied to the interior of each roll to cause it to be discharged into such layer of material. An aftercooling section below the rolls is provided with means for indirect cooling of the comminuted material and has a depth which is several times that of said layer.
Claims10
A shaft cooler comprising a plurality of power-driven adjacent horizontal hollow perforated comminuting rolls, a material -- holding upper shaft section immediately above said rolls, said upper section having a height of 50 to 100 cm., means for delivering material at the upper end of said upper section, an aftercooling shaft section immediately below said rolls, the height of which is several times that of the upper section, means for withdrawing material at the lower end of said aftercooling section as material is delivered at the upper end of the upper section, thereby maintaining both sections substantially full of material, means in the aftercooling section for indirectly cooling the material, and means for supplying cooling air to the interior of each roll, thereby causing the air to flow upward through the layer of material in the upper shaft section.
Dependencies are inferred from the claim text.