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:
Apr. 28, 1998
Filed:
Dec. 09, 1996
Applicant:
Inventors:
Jouni Kinni, Tampere, FI;
Jukka Louhimo, Siivikkala, FI;
Pentti Janka, Tampere, FI;
Kari Haverinen, Saaksjarvi, FI;
Assignee:
Tampella Power Oy, Tampere, FI;
Primary Examiner:
Int. Cl.
CPC ...
F23G / ;
U.S. Cl.
CPC ...
110245 ; 122 / ; 423 58 ;
Abstract
A grate assembly for a fluidized bed boiler comprises a number of parallel sparge pipes or the like extending side-by-side in a substantially horizontal plane and provided with elements for supplying fluidizing air from within the sparge pipes or the like into a combustion chamber located above the grate assembly. The discharge of some of the fluidized bed materials is effected through an aperture system formed between the adjacent sparge pipes into a receiver unit fitted below the grate assembly. The sparge pipes are provided with a cooling medium circulation by means of a duct assembly.