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:
Sep. 19, 1989
Filed:
Aug. 27, 1984
Applicant:
Inventor:
Seppo Ruottu, Karhula, FI;
Assignee:
A. Ahlstrom Osakeyhtio, Karhula, FI;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F27B / ; F27B / ;
U.S. Cl.
CPC ...
422145 ; 55391 ; 55396 ; 422147 ;
Abstract
A fluidized bed reactor in which the gases flowing tangentially through a pipe from the upper part of the reactor chamber to a cyclone separator are discharged through a discharge pipe of the separator. The bottom of the cylindrical vortex chamber of the separator is substantially planar and inclined towards the fluidized bed reactor in one embodiment, and conical in another embodiment. The separated solids flow through the return pipe to the lower part of the reactor chamber. The discharge end of the return pipe is disposed inside the lower fluidized bed zone being formed on the bottom of the reactor chamber.