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AssigneesKawasaki Jukogyo Kabushiki Kaisha, Sumitomo Osaka Cement Co., Ltd.
InventorsIsao Hashimoto, Shozo Kanamori, Mikio Murao, Norio Yokota, Nichitaka Sato, Katsuji Mukai
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A sintering method of cement clinkers in which preheated cement raw material powder is granulated and sintered in a fluidized bed granulating and sintering furnace, and granulated and sintered clinkers are introduced into a cooling device, for manufacturing high-quality cement clinkers by use of a single fluidized bed-granulating and sintering furnace efficiently with a small heat loss, wherein clinkers are discharged from the fluidized bed granulating and sintering furnace through a clinker dropping hole which is provided in a fluidizing gas distributor of the furnace or in a radial direction extending from the gas distributor, an opening area of the clinker dropping hole is regulated by a gate portion to maintain the differential pressure in a fluidized bed within a predetermined range, air for classifying and cooling the clinkers is blown into a discharge chute connected to the clinker dropping hole, the amount of the blown air is regulated to make the flow velocity of the air blowing from the clinker dropping hole different from the flow velocity of air flowing through nozzles of the gas distributor, and the clinkers are introduced into a cooling device through a hermetic discharge device provided below the classifying and cooling air intake position,
A method of sintering cement clinkers comprising the steps of:
An apparatus for sintering cement clinkers comprising a fluidized bed granulating and sintering furnace in which preheated cement raw material powder is granulated and sintered, and a cooling device in which granulated and sintered clinkers are cooled, wherein a clinker dropping hole is formed in a radial direction extending from an upper surface of a fluidizing gas distributor of the fluidized bed granulating and sintering furnace through a discharging grooved portion which has a plurality of nozzles and is formed between the gas distributor and the clinker dropping hole, while the clinkers are classified right above the clinker dropping hole and on the discharging grooved portion, the clinker dropping hole being connected to the cooling device via a discharge chute and hermetic discharge means, and a classifying and cooling air intake pipe for classifying and cooling the clinkers being connected to the discharge chute.
A method of sintering cement clinkers comprising the steps of:
Dependencies are inferred from the claim text.