Continuous mixing silo and method of operation
AssigneeKrupp Polysius AG
InventorsGerhard Balzau, Gunter Kompa, Frank Schaberg, Manfred Steinmann, Helmut Kucharski
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Abstract
The invention relates to a continuous mixing silo and a method of operating it for the mixing of fine-grained material. The silo has a base provided with a plurality of zones which are supplied with aerating air in chronological sequence. Individual zones of the base are supplied with additional air in a pulse-like manner at specific intervals of time to achieve intensive aeration and mixing of the material. The additional air is supplied from a storage unit for a shorter period than the aerating air. Air taken from the storage unit is replenished during the time interval between pulses.
Claims19
In a method of operating a continuous mixing silo in the mixing of fine material and wherein the silo has a base provided with a plurality of zones to each of which aerating air is supplied individually in chronological sequence, the improvement comprising supplying additional air to each of said zones simultaneously and only while such zone is being supplied with aerating air, said additional air being supplied for a period of time less than that during which said aerating air is supplied.
In a continuous, fine material mixing silo having a material inlet, a circular base, a plurality of radial discharge channels spaced uniformly and circumferentially about said base and dividing said base into a plurality of circumferentially spaced zones, an aerating duct for each of said zones through which aerating air may pass for fluidising material in said zone, a material outlet in said silo base in communication with said discharge channels, and means for supplying aerating air individually to each of said zones in circumferential sequence, the improvement comprising means for supplying additional air to each of said zones simultaneously with the supply thereto of aerating air, but for a shorter period of time than that during which said aerating air is supplied to such zone.
Dependencies are inferred from the claim text.