US1993573A - Coke oven - Google Patents

Description

F. TOTZEK March 5, 1935.

COKE OVEN Filed March 5, 1931 Uhl.

Patented Mar. 5, 1935 l j UNITED-STATES PATENT--oF`vFicE--j` dinally of these chambers.

' 'COKE ovEN Vnppliwtimn March. 5,1931, serial Nd. 520,270 y In Germany January 25, 1929 comms. (orcos-222i My invention refers to coke ovens of the kind in which regenerators are provided for the alternate heating of gas and air, which are arranged below the coking chambers and extend longitu- In coke ovens of this type, in which a row of such regenerator chambers is arranged longitudinally of the battery of ovens, alternate regenerator chambers or groups of such chambers being operated in opposite sense, the drawback has been felt that the walls or partitions between two chambers or groups of chambers are liable to crack under the action of expansion so that in consequence of the difference of pressure existing on opposite sides of the walls or partitions gaseous media will escape through such cracks.

In order to remedy this defect it has been suggested to arrange the regenerator chambers in such manner, that a chamber supplied with fresh air to be heated is always conned between two chambers supplied with hot waste air, whereby' the regenerator chambers, in which the poor gas is heated up, are isolated by these air regenerators. While it was possible to thus prevent gas from mixing with the waste hot air, the crackinhof the walls or partitions is not done away w1 f In order to render these cracks innocuous I cover the wall or partition on both sides with plates, held on the wall or partition for instance by means of a slot and key connection, which are so dimensioned that the joints between adjoining plates do not register with the joints in the wall or partition. j

In the drawing affixed to this specication and forming part thereof a wall or partition embodying my invention is illustrated diagrammatically by way of example.

` In the drawing Fig. 1 is an end elevation and Fig. 2 is a side elevation with the plate covering partly broken away.

Fig. 3 is a vertical cross-sectional View of a part of a coke oven battery embodying the present invention.

Referring to the drawing there is shown av series of alternate horizontal coking chambers 12 and heating walls 11 therefor arranged side by side in a row. Regenerators G, I-Isituated below the coking chambers are separated by a regenerator wall. I'he regenerators G are for fuel gas inow and the regenerators H for air inflow. The flues 24 of the heating walls are connected for passage of combustion products by a crossover duct 26 and when one pair of regenerators G, H, operatefor inflow the other pair of regenerators G, H, operate for outflow and subsequently are reversed as is usual with regenerators. The oven shown in Fig. 3 is of the Well-known crossover type of Becker Patent 1,374,546. 10, 10 are the bricks forming the wall or partition and 11 are the plates covering both sides thereof. As shown in the drawing these plates are provided with keys 12 projecting into Wedge-shaped slots arranged for this purpose in the wall or partition. The plates are considerably larger than the individual bricks and are so dimensioned that the joints 14 formed between adjoining plates are not in register with the horizontal and vertical joints 13 between the bricks.

Obviously if cracks or fissures are formed in the wall or partition, which are known to arise mostly in the direction of the joints 13, the plates 11 effectually prevent the passage of gaseous media through these cracks or fissures.

Preferably, if the wall or partition is formed of silica bricks, the plates 11 are formed of a material containing clay as a binder, for such plates, owing to their lower, almost linear clon'- gation, offer particular advantages.

Obviously other fixation means may be provided to replace or assist the keys l2.

I wish it to be understood that I do not desire to be limited to the exact details of construction shown and described for obvious modiiications will occur to a person skilled in the art.

In the claims affixed to this specification no selection of any particular-modication of the invention is intended to the exclusion of other modications thereof and the right to subsequently make claim to any modication not covered by these claims is expressly reserved.

I clainu- 1. In a coke oven comprising a coking chamber, gas combustion means for heating said coking chamber, and a plurality of juxtaposed regenerators communicating with said gas combustion means and operable in alternation with each other for concurrent inflow preheating of a gaseous combustion medium and outow of waste gas, said regenerators being separated from each other by a brick regenerator-wall adjoining the Vertical joints of the bricks with the joints between adjoining covering plates out of register with the joints between adjoining bricks of the regenerator wall so as to thereby effectively seal the regenerator wall and its brick joints against leakage therethrough from one regenerator chamber under high pressure to the other under lower pressure on the opposite sides of the regeneratorr wall.

2. In a coke oven comprising a coking chamber, gas combustion means for heating said coking chamber, and a plurality of juxtaposed regenerators communicating with said gas combustion means and operable in alternation with each other for concurrent inow preheating of a gaseous combustion medium and outflow of waste gas, said regenerators being separated from each other by a brick regenerator-wall adjoining the regenerator chambers and comprising courses oi' bricks joined together; the improvement comprising tile gas sealing covering plates capping the entire wall surfaces of the regenerator wall, the covering plates being so dimensioned and arranged on the regenerator Wall that each of the covering plates cover both the horizontal and the vertical joints of the bricks with the joints between adjoining covering plates out of register with the joints between adjoining bricks of the yregenerator Wall, and the covering plates being FRIEDRICH TOTZEK. 20

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