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:
Jul. 21, 1987
Filed:
Jun. 26, 1986
Applicant:
Inventor:
Jorgen Bergkvist, Finspong, SE;
Assignee:
ASEA STAL Aktiebolag, Finspong, SE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B09B / ;
U.S. Cl.
CPC ...
122 / ; 110245 ; 110341 ; 16510416 ; 422142 ;
Abstract
A multibed fluidized boiler having at least two fluidizable beds, in which conventional fuel, for example coal, is supplied to the first bed and in which the combustion of this fuel takes place in the first bed and in the following bed. An alternative fuel, such as wood chips, waste wood or paper, or combustible refuse, is adapted to be supplied to the second bed in order to be burnt there, thus obtaining a simplified fuel feeding to the second bed and increased protection against clogging of the nozzles for the supply of gas from the first bed to the second bed.