GB490813A - Improvements in coke ovens - Google Patents

Abstract

490,813. Coke ovens. STILL GES., C., and PETSCH, H. Feb. 19, 1937, No. 5019. [Class 51 (ii)] In a vertically-flued coke oven in which gas or air for combustion, or both, are supplied at different levels through ports 13, 14 in the partition walls 11, 12 between the flues, each flue is divided by a median partition 3 parallel to the oven, and containing a further passage or passages by which a separately-controlled supply of gas and air can be admitted to the flues also at different levels. As shown in an horizontal regenerative oven which can be fired alternatively by rich gas supplied through conduits 4 and nozzles 33, or by regenerativelyheated lean gas, the conduits 5, 6 in the transverse partitions 11, 12 are connected directly to the gas and air regenerators G, L respectively through the ports 9, 10, while the similar passages 28, 29 in the median partitions 3 are connected to sole flues 24, 25 in damper-controlled communication with the regenerators. Each of the conduits 5, 6, 28, 29 opens to both sides of its partition and supplies two flues. A modification is described, Figs. 4, 6, and 8 (not shown), in which each partition 3 contains two vertical conduits connected respectively to gas and air regenerators. The heating-wall may be modified for " twin " or " hairpin " connection of the flues either by extending all the partitions 3 and alternate partitions 12 upwards to the top of the flue 15 so that reversal can be effected between pairs of flues along the length of the heating-wall, or by similarly extending all the partitions 11 and 12, reversal in this case taking place across the heating-wall.