Patent GB-190428811-A (GB)
Title: Improvements in or relating to Gas Furnaces or Coke Ovens.
Inventor: KOPPERS HEINRICH
Filed: 1904-12-29
Granted: 1905-10-05
Abstract: 28,811. Koppers, H. Dec. 29. Coking.-Relates to a compact construction of gas furnace combined with coking-chambers and regenerators. The regenerators are formed beneath the battery of ovens in direct parallel arrangement with the heating-walls, and are interp )sed in the path of the hot gases in order to be used as distributing-means. The regenerators are arranged transversely so that the gases to be preliminarily heated are conducted to that part of the regenerator belonging to one-half of the furnace, are distributed and burnt throughout the length of the furnace, and then descend through the other half of the regenerator to reach the flue. Fig. 1 represents a partial longitudinal section of a battery of furnaces, Fig. 2 a section along the axis of a coke chamber. The coking-chambers a and the heating- walls b are arranged side by side as usual ; below, the regenerators e, f, divided by the arch and wall at the place where the draught is reversed, lie along the axes of the coking-chambers. Passages connect the regenerators to the heating-walls, to which ga3 also arrives through the passages and nozzles i. If air only is to be preliminarily heated, it enters the regenerators e, becomes distributed over one-half the length of the coking-furnace, and ascends through the passages in the heating-wall, where it mixes and burns with gas supplied at the nozzles i. The burnt gases descend in the other half of the furnace and pass through the regenerator f to the flue. Slides vary the admission and discharge flues. In the preliminary heating of gas and air, the operation is similar. By means of a double partition n, Fig. 3, the regenerators are divided for air and gas respectively. Each gas and air regenerator is connected in parallel with two heating-walls so that gas and air enter the heating- walls alternately from right and left. In a modification for the purpose of constructional advantages, the discharge passages of the regenerators, and the air admission passages on the other side, are connected in parallel with conduits common to the flue and to the atmosphere. Fig. 5 illustrates a further modification, where the regenerators of each side are only connected to one conduit, which according to the adjustment of its slides first serves as a discharge conduit and then as a fresh-air conduit. The gas regenerators s, r are connected by the cocks with the main gas pipe o, and also by means of the slides with the collecting-conduits v, v<1>. In the position shown, gas passes into the regenerators r, after which the cocks are closed. The gas ascends through the regenerators r and rises and burns with air conducted through the conduit v<1>, and distributed into the separate regenerators e by the pasages w<1>, the air door x<1> being opened. The burning gases ascend between the heating-walls and descend on the other side, passing through the regenerators s, f arranged for preliminary heating. When the air door x is opened and the smoke door z closed, the gases are led to the chimrey flue. Reversal is then effected, the gas burning with air entering through passage v. If air alone is preliminarily heated, the regenerators s, r and appurtenances are dispensed with, the operation for reversing the draught being confined to actuation of the air doors x, x<1> and smoke doors z, z<1>. The above construction is advantageously used in connection with the coking-furnace described in Specifications Nos. 18,262 and 25,527, A.D. 1904.