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. 02, 1988
Filed:
Oct. 06, 1986
Roine Brannstrom, Finspong, SE;
Asea Stal Aktiebolag, Vaster.ang.s, SE;
Abstract
A power plant designed to burn fuel in a bed of fluidizable particulate material contained in a combustion chamber includes a tubular discharge device for bed material or dust separated from combustion gases leaving the combustion chamber. The tubular discharge device is designed as a cooler which is cooled by combustion air flowing into the combustion chamber and is utilized for pre-heating the plant upon start-up from a cold state. At least a part of the tubular discharge device, is electrically insulated from parts located upstream and downstream and from supporting structural members and forms an electrical heating unit. Upon start-up, this unit is connected to a current source for heating the air fed to the combustion chamber and downstream parts of the plant.