The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 04, 1998
Filed:
Mar. 25, 1997
Isao Hashimoto, Akashi, JP;
Shozo Kanamori, Miki, JP;
Mikio Murao, Kobe, JP;
Norio Yokota, Tokyo, JP;
Nichitaka Sato, Tokyo, JP;
Katsuji Mukai, Tokyo, JP;
Kawasaki Jukogyo Kabushiki Kaisha, Kobe, JP;
Sumitomo Osaka Cement Co., Ltd., Tokyo, JP;
Abstract
An apparatus for sintering a cement clinker in which preheated powdered raw materials are granulated and sintered in a single fluidized bed granulating and sintering furnace. The apparatus includes a first classifying station having a discharging grooved portion extending from the fluidized bed furnace to an opening in a radial direction and communicating with a gas distributor. The space above the discharging grooved portion diverges from the opening to a fluidized bed upstream of the gas distributor so that the total velocity of air blown through the opening and from nozzles in the discharging groove is constant. A second classifying station is in communication with the opening for blowing back small particles to the fluidized bed. In a third classifying station, a discharge chute is connected to a fluidized bed cooling unit for quenching granulated and sintered clinker while small particles are blown back to the granulating and sintering furnace.