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. 31, 1999
Filed:
Jun. 06, 1995
Norio Yokota, Narashino, JP;
Nichitaka Sato, Funabashi, JP;
Katsuji Mukai, Nagareyama, JP;
Toshiyuki Ishinohachi, Tochigi-ken, JP;
Hideho Hayashi, Tochigi-ken, JP;
Isao Hashimoto, Akashi, JP;
Mikio Murao, Kobe, JP;
Shozo Kanamori, Miki, JP;
Chikanori Kumagai, Kobe, JP;
Tatsuya Watanabe, Tochigi-ken, JP;
Kawasaki Jukogyo Kabushiki Kaisha, Kobe, JP;
Sumitomo Cement Co., Ltd., Tokyo, JP;
Abstract
An apparatus for manufacturing cement clinker is disclosed in which raw material powder of cement pre-heated and partially pre-calcined by a pre-heating unit such as a suspension pre-heater (or a provided pre-calciner') is charged into a granulating furnace as to be granulated, thus-obtained granulated material is charged into a sintering furnace as to be sintered, and the sintered material is cooled and recovered by a cooling unit, the apparatus having a granulating furnace so that the granulating performance of the granulating furnace is improved. A fuel supply unit for forming a local hot region is disposed immediately above a porous perforated distributor disposed in the throat portion between the granulating furnace and the sintering furnace so that the granulating furnace is formed into a jet fluidized bed structure, the lower portion of the granulating furnace has an inverse frustum of circular cone (a cone portion) so formed as to cause the granulated material to form a downward moving bed, and raw material powder of cement is blown through the side wall of the cone portion, and it is sufficiently dispersed in the moving bed before it reaches the local hot region.