Patent ID: 6431125
Filing Date: 2002-08-13
Classification: F23L

Abstract:
A device for regulating and cleaning an air port (3) arranged in a wall (2) of a furnace, especially a soda house furnace, comprising a cleaning arrangement (1), which in its turn comprises a cleaning member (7) movable with respect to the walls of the air port (3), and an arrangement (4) for regulating the air flow through the air port, an air casing (5) is arranged around the air port on the outer side of the furnace wall, a drum (12) being arranged inside the air casing and connected to a wall (13) of the air casing located opposite to the furnace wall, said cleaning arrangement being also connected to said wall of the air casing and extending at least partially through the drum, said regulating arrangement having a cover member (14) movable with respect to the drum, said cleaning member being movable between two end positions independently of the position of the cover member, and said cleaning member being in a first of the end positions located at least partially inside the furnace and in a second of the end positions at least partially outside the furnace, characterized in that the cover member (14) is arranged for regulating the air flow through at least one opening (32) defined by at least one lateral wall of the drum (12) and having a restricted extension in the circumferential direction of the drum.