US1770998A - Coke oven - Google Patents

Description

July 22, 1930. H` SQHRDER 1,770,998

COKE'OVEN Filed Nov. 28, 1925 2. Sheets-Sheet l y s l2 H. SCHRDER July 22, 1930.

COKE OVEN Filed Nov. 28, 1925 2 Sheets-Sheet 2 r M@ im n 2; wmf/M .,w H@

Patented July 22, 1930 UNITED STATES HUGO SCHRDER, or EssEN-oN-THE-RUHR, GERMANY COKE OVEN Application sled November 2s, 1925, serial N0. 71,877, ail-i1 in Germani April 12, 1924.

My invention relates to improvements 'in coke ovens, and more particularly in colte ovens of the type in which the coking and heating chambers are disposed above the re- 5 generators. The object of the improvements is to provide a coke oven lof this type in which the wear of the brick-work of the coking and heat-ing chambers and the regeneratorsis reduced, and with this object in View my in- 10 vention consists in erecting the coking and heating chambers on vaults disposed longitudinally of the coling chambers and having a span such that each vault is disposed below a plurality of heating and coking chambers, 15 and disposing the regenerator within the said vaults, the regenerator disposed in each vault cooperatingr with the heating and coking chambers disposed above the same. In the preferred construction each vault comprises 20 two arches disposed one above the other, the

lower arch being capable of a certain expansion. In my improved oven the regenerators are separated from one another by strong walls forming a part of the vaults, and they 5 are separate from one another in the operation of the oven. The coking and heating chambers are supported on a rigid base provided by the vaults, so that the walls thereof, which are necessarily thin, are in a Vless degree subject V to destruction by cracks. Further, the brick-Work of the regenerators is not subject to destruction by the brick-work of the coking and heating chambers bearing thereon, the said brick-work being supported 5 exclusively on the vaults. r

For the purpose of explaining the invention two examples embodying the same have been shown in the accompanying drawings, in which the same reference characters have been used in all the views to indicate correspending part-s. In said drawings,

Fig. l, is a sectional elevation taken on the line A1--1 of Fig. 2,

Fig. 2, is a sectional elevation taken on the line 2-2 of Fig. l,

Fig. 3, is a sectional elevation taken on the line 3-3 of Fig. 4 and showing a modification, and

Fig. 4, is a sectional elevation taken on the line 4 4 of Fig. 3.

In the exampleshown in Figs. l and 2 the coke oven comprises a base indicated Ias a whole by the letter A and theV coking chambers c and heating passages or fluesj m, d, g, lc, 71 z', n, indicated as a whole by the letter B. The base A consists of a rigid horizontal top plate C and vaults comprising rigid .walls a and arches b. supporting the said plate C. Each vault comprises two arches and Z9', the lower arch b being capable of a certain eX- pansion independently of the upper arch The vaults a, b, Z2 are disposed longitudinally of the colingchambers. c, and their span is such thatthree coking chambers and heating passages are disposed above each'` vault. Bv

thus constructing the base A, the walls of the coking chambers have a'rigid support thereon so that they are not injured by the yielding of the said base. Within each ,vault there is a regenerator e, f,and each 4regener- P ator cooperates with the set of heating passages disposed above the same. In` the ex-` ample shown in the igures the heating passages Vor flues al and g are connected to the regeneratorse, and the heating passages or flues z, and Y'areconnected to the regenerators The heating passages m and `n are connected respectively to the regenerators e and f and the regenerators adjacent thereto.

Therefore each regenerator cooperates with three heating passages. The regenerators are separated by a transverse -wall o` into-sections e1 and e2 (Fig. 2). At their ends the regenerators are connected with air and waste heat passages p, r and passages, s and t connected with fresh air ,and waste .heat channels u and v... The passages u and e are alternately used for .passing air for supporting. combustion .through the previously heated regenerator sections e1 and 2te thefpaspoints away from the inner ends thereof. The bottom parts of the regenerator sections located at the same sides of the oven are connected with one another through passages Z insuring transmission of the heat from one regenerator to the other one.

In the modification shown in Figs. 3 and 4 the heating passages or flues Z1 are connected with the regenerators e3, f3 through collecting passages e, and the regenerators are not subdivided by transverse Walls, such as 0. Above the regenerators there are horizontal collecting passages r1 and p1 Which are connected with the fines sc that the heating gases said coking and heating chambers which arc disposed above the upper arch, each lower arch being capable of expansion independent ofthe structure resting thereupon, the length of the arches being parallel with the length of said coking and heating chambers.

In testimony whereof I hereunto affix my signature.

HUGO SCHRDER.

flow through the flues successively in upward and downward direction. The gas is distributed Within the regenerator by regulating the air pressure or draught.

By combining adjacent heating passages or flues in groups and comparatively large reoenerators I am enabled to construct a rigid base providing a strong support for the thin heating Walls, and to separate the regenerators by strong Walls, so that the regenerators are separate from each other also in continuous operation of the oven.

My improved structure may also be used in compound coke ovens, that is ovens adapt-- ed to be heated by means of a preheated low grade gas. In this case in the regenerator sections of one side the regenerators for heating gas and for air are alternately arranged, While at the opposite side the Waste gases are passed to the stack through all the regenerator sections.

In many cases the regenerator systems of old plants can bereconstructed according to the principles of my invention.

I claim:

l. A coke oven having a series of alternately-disposed coking chambers and heating chambers therefor arranged side by side, said chambers being elongated horizontally, a regenerator disposed beneath the series of coking and heating chambers and of awidth to be coextensive With the length of the series of chambers, said regenerator communicating with the aforesaid heating chambers, the regenerator also extending substantially parallel to the coking and heating chambers.

2. A coke oven having a series of alternately-disposed colring chambers and heating chambers therefor arranged side by side, said colring and heating chambers being elongated horizontally, regenerator chambers disposed beneath theseries of colring and heating chambers and of a combined Width to be substantially coextensive With the length ofthe series, the regenerator chambers communicating with the said heating chambers each of said regenerator chambers efit-ending substantiallyV parallel to the coking and heating chambers, each of said regenerator chambers having a plurality 0f superposed arches, the upper of which supports

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