Soba Upper- Draught Hoff-Mann Kiln Temperature Distribution

Abstract

This study aimed to convert the operation of Soba circular kiln, the top-fired one, with the suction of hot gases up-wards (upper- draught kiln), to the way of suction of heat down-wards (down-draught kiln) in order to draw and distribute the high concentrated quantity of heat at the kiln top-crown down- wards to the bottom of the kiln, and allover of it as much as possible. Suction-pipes of special specifications was used to link between the bottom of the kiln and the main exhaust suction-pipes system in order to draw the hot gases concentrated at the kiln top-crown, down-wards to the bottom of the kiln. Extensive field work and laboratory studies had been carried out during this study achieved a consistent results and finding lead to a good high quantity and quality of fired red bricks.