Patent ID: 6560893
Filing Date: 2003-05-13
Classification: D21F,F26B

Abstract:
A gas-fired drying cylinder comprising a cylindrical shell, means for supporting each end of the shell, said shell having an internal surface and having an external surface for engagement with material to be heated, means for mounting the shell for rotation about its central longitudinal axis; a burner assembly non-rotatably supported within said shell and located adjacent to the internal surface of the shell for burning air-fuel mixture to transfer heat to the shell by infrared radiation and by convection of hot combustion gases; said burner assembly having a plurality of burner segments along the length of the shell, the heat output of the burner segments being individually controllable and being selectively controllable for operation in unison, the mounting means of said shell at least at one end thereof being adapted to provide access to said burner assembly for removal thereof through an end of the shell.