Round cooler for hot bulk material

Rotary round cooler for the cooling of hot bulk material, especially hot iron ore sinter, consisting of an annular circular base plate, which is supported with contact rollers on a circular track for rotation in a horizontal plane, a support frame attached to the base plate, a movably fastened circular cooling chamber on the support frame with gas permeable inner and outer walls, and with at least the bottom edge of the outer wall located at some distance from the base plate, a loading device above the cooling chamber, a pick-off unloading device located above the base plate and in the midst of the cooled material, a drive device for the rotary motion of the cooler, a feed device located on the inside of the support frame for the gaseous cooling medium, as well as blowers for the production of the required pressure for the cooling medium, said combination wherein:

• the base plate is formed as a rigid disc (1), the walls (2, 2a) of the cooling chamber (3) are supported on a support frame including a reinforced cylinder (4) reinforced in the radial direction by corner frames (5) on the disc (1) and reinforced in the upper part on the inside by a rotary transverse girder (6), and, for the horizontal rotation of the cooler, horizontal, flangeless contact rollers (7) are located on the inside of the disc (1), which run on a horizontal, circular, flangeless track (8) for rotation, and the vertical forces of the cooler are transferred to the track (10) by the flangeless contact rollers (9) located slightly below the center of gravity of the moving system.