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:
Feb. 19, 2019
Filed:
Sep. 18, 2014
Mitsubishi Materials Corporation, Chiyoda-ku, JP;
Junzhu Wang, Naka, JP;
Yoshinori Takayama, Naka, JP;
MITSUBISHI MATERIALS CORPORATION, Chiyoda-ku, JP;
Abstract
The present invention provides a fluidized calciner which can perform sufficient calcination by reducing a rate of unburned fuel at an outlet of the fluidized calciner while preventing occlusion in a preheater. In the present invention, plural pulverized coal blowing lines (), raw material chute () of cement raw material, and first to fourth air introduction pipes (to) are connected to a bottom side wall of a tubular furnace body () whose upper end portion is closed by a top plate (); a fluidizing air blowing port () adapted to blow in fluidizing air is disposed at a bottom of the furnace body (); an exhaust gas duct () is connected to a top side wall of the furnace body located above the first and/or second air introduction pipes () by being spaced away from the top plate (); and blowing ports () of the pulverized coal blowing lines are disposed below suction ports of respective air introduction pipes (to) but above the fluidizing air blowing port (), and at least one of the blowing ports () is placed below the third or fourth air introduction pipe (or).