Patent ID: 6535543
Filing Date: 2003-03-18
Classification: F27D

Abstract:
A device to take in fumes and cool a roof (10) of an electric furnace, said furnace comprising at least a central zone surrounding a substantially central aperture (11) into which at least one electrode can be inserted and moved, and a peripheral fume-discharge aperture (12) to take in and discharge the fumes, said device comprising:at least a first cooling system (13) for intaking a first portion of the fumes, and cooling the central zone surrounding said central aperture (11), and a second cooling system (15), comprising the peripheral fume-discharge aperture, for intaking, cooling and conveying at least a second portion of the fumes to outside the furnace, wherein said first cooling system (13) comprises at least a circular cyclone chamber (18) comprising a plurality of turns (19) able to cool the central zone surrounding said central aperture (11) and able to create a cyclonic development of the first portion of the fumes.