GB215306A - Improvements in or relating to coking retort oven batteries - Google Patents

Abstract

215,306. Koppers Co., (Assignees of Ackeren, J. van). May 4, 1923, [Convention date]. Gaseous-fuel furnaces.-In a regenerative coke oven of the kind described in Specifications 171,117 and 205,459, [Class 51 (ii), Furnaces and kilns for applying &c.], in which the heating- walls on opposite sides of alternate ovens are connected for reversible flow of the heating gases, adjacent pairs of similarly functioning heating- walls are associated with corresponding pairs of regenerators, each regenerator of a pair being connected with both heating walls. As shown in an oven which can be fired either by producer or coke oven gas the flues 17 in each heating-wall are subdivided into groups, each group being eonnected by a cross-over duct 26 with a corresponding group on the opposite side of an intervening oven C<1>. The regenerative chambers are arranged beneath and parallel to the ovens, and each chamber is connected by forked ducts 203 with a pair of similarly-functioning heating walls, adjacent similarly-funetioning regenerators forming a pair R or S being connected to the same pair of walls. When operating with producer gas, air is supplied to one regenerator A of alternate pairs, say R, and gas to the other; combustion is effected in the pairs L of heating- walls, and the products are exhausted through the pairs M, and the regenerators S. When coke oven gas, supplied through sole ducts 29, is used for firing, air is supplied to both regenerators of the inflow pairs. The regenerators are at least as wide as, and relatively lower than, the heating-walls, and each is divided bv a partition at about the mid point of its length so that firing of the " coke " and " pusher " halves of the ovens can be independently controlled. To promote mixing of the gas and air the two branches of the ducts 203, which lead to a heating-flue from the two associated regenerators, converge to a single port, which is restricted at the sides by removable plugs resting on the mouth of the port, and to promote even distribution between the two branches of the ducts 203 the upper part of the fork is formed with a recess 207, Fig. 7, and the sharp angles at 209 are rounded off.