US1690805A - Regenerative coke oven - Google Patents

Description

Nov. 6, 1928.

,690, 05 G. o. WOLTERS REGENERATIVE com: OVEN Filed Sept. 10, 1926 3 Sheets-Sheet 1 lnreni'ar 0, Wailers Nov. 6, 1928. 1,690,805

- e. o. WOLTERS REGENERATIVE COKE OVEN Filed Sept. 10, 1926 3 Sheets-Sheet 2.

[12 V8]: for

6f Waliens Nov. 6, 1928. 1,690,805

G. O. WOLTERS REGENERATIVE COKE OVEN Filed Sept. 10, 1926 3 Sheets-Sheet 3 [n renfor w .0.W0 fer; 3y

Fwy.

Patented Nov. 6, 1928 UNITED STATES,

1,690,805 PATENT OFF-ICE.

imam? o'r'ro WOLTERS, or VILLIGS'T, NEAR scnwna'rn. GER-MANY.

Application filed September 10, 1926', Ser.ia1

My invention relates to improvements in coke ovens, and more particularly in ovens of the class in which the coking chambers are comparatively high and the air for supporting combustion is supplied at different points of the length of the heating passages. The object of the improvements isto'provide an oven of this type in which the main portion of. the air for supporting combustion is preheatwithintheregenerators and delivered into the heating passages of the oven at the-inlet end thereof, the direction of the flow of the air coming from the regenerators being changed whenever the flow of the heating gases to the heating passages is reversed, while additional air is supplied to a'median part or median parts of the heating passages.

. This additional air is preheated in separate chambers infwhich the direction of its flow remains the same even'whenreversing the'flow.

' of the gases through the heating passages, the

said additional air being preferably conduct-- ed through passages or pipes or chambers provided in the walls of the regenerators or within the regenerators themselves, where it is heated at high temperature." Thus, the said passages or pipes or chambers work in the same way as recuperators. By heating the coke oven, the heat is uniformly distrib- T sages.

uted all over the length of the heating pas- For the'purpos'e 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 corre- :sponding parts.

In said drawings, 1

Fig. 1, is a partial sectional elevation showing the coke oven and the regenerators,

'Fig. 2, is a sectional elevation taken on the line 2-2 of Fig. I, v n

vFig. 3, is a sectional elevation similar to the one shown in Fig. 1 and illustrating a modification, Y

s Fig. 4, .is a sectional elevation line 4-4 of Fig. 3, and

Fig. 5, is a sectional plan' view taken on the line 5-5 of Fig. 4;

p In the embodimentof the invention shown in Figures 1 and 2 the'coke oven is constructed'of brickwork and comprises coking chambers horizontally elongated and having heating chambers F at opposite sides thereof, said coking and heating chambers being arranged in the upper portion ofthe brickwork taken on the" REGENERATIvE COKE oven.

with the separating or intermediate walls common to both chambers. The heating chambers. are divided into alternate pairs of fiues f and f by vertical partitions 7c, is ex-. 00 tending transversely of and upward from the bottom of the heating chambers to adjacent the top thereof with the fines in communication with each other over the tops of the par-v titions. Regenerators 9,9 are arranged below the coking chambers in parallel relation thereto and each other, saidregenerators having connection through passages i, i with passages h,h which latter passages are adapted for connection with asource of air supply for supporting and stimulating combustion in the heating chambers, or to means for exhausting the products of combustion from the regenerators' To pass'preheated'air to th'e'lower portions of the fluesf, f of the. heating chambers from the regenerator's g, g7 and for conducting the burned gasesv orthe products of combustion from said chambers to. the regeneratorspassages b, b" are provided to connect the regenerators with. the flues, thefpassages b communicating with the regenerators g and the dues f while the pas sages b communicate with the regenerators g and-flues f. Passages j, j leading from a source of gas supply are arranged in the wall of the oven in interposed relation to the heating chambers and regenerators and have burners a, a connected thereto opening into the respective flues f, f of the heating chambers- Coking ovens constructed in accordance with the foregoing descriptionrand the operation thereof are well known to those skilled in the art. v

The partition walls k alternating with the partition walls 70, and separating the heating chambers'into fines are arranged with passages 0 extending longitudinally therethrough, and said passages leading through thepartition walls 0 of the regenerators from 'chambersm extendingthrough the walls of 100 the regenerators and parallel thereto. The passages a open into the upper portion of the heating chambers F through the tops or the sides adjacent the tops ofthe partitions. The chambers m communicate with an air supply 105 and the air as it passes therethrough andthe passages 0 is preheated before it BIItGI'S IIItO the heating chambers by the heat transmitted through the Walls of the regenerators. p i

In. the operation of the oven air'and, gas 110 are supplied, for instance, through the pas sages Z) from the regeneratorsg and burners a; p

to the bottom portion of the fines f of the heat ing chambers, the air mixing with and serving as a stimulant and aid to the combustion'of the gas, and the burning mixture rising in said chambers and passing over the tops of the partitions 7c and descending into the fines and exhausted through the passa es b to the regenerators g, which at the time areserving as exhaust fines for the products of combustion, whichare exhaustedthrough the pas-- sages 2", it connected with said regenerators g, thedirection of flow of the gases and the exhaust of the products of combustion being that indicated by the arrows. Asthe gases in the fines freachthe upper endsof theflues additional air is supplied toithe partly burnt gases through the aassages o to serve as :a stimulant to the burning gas and assuring complete combustion of thesame. The air admitted through the passages it is previously heated in the passage through thesregeneratorsg, and theadditional or secondary air deliveredthroughthe passages c is preheated by the heattransmitted through the walls of theregenerators. As Is usual in coking ovens of this character, after the regenerators g have'been in operation for a certainperiod-of time the regenerators g are utilized as regen e'ratorsand the regeneratorsg as exhaust pas sages forthe products of combustion. fWhen the direction of flow of the burning gases through the fines 7", 7 isrreversed primary combustio is taking place in the lines 7 by bustion are supplied to a series of adjacent verticalpassages or flues f in theheating chambar and deliv red from said series of fines to a successive series of adprcentpassages or-flues F, the heating chamber being above and parallel with the two generators g g "'hich are As shown the arranged in endwise rel ion, passages a and b openinto a series :of ad jacent vertical passages or lines 7, while the passages a and b open into a successive series of adjacent flues F. The passagesb communicate with the regenerators g and the passages b with the regenerators Otherwise the construction of the oven is similar to that described with. reference to 1 and 2. In the operation of the oven is supplied to the heating passages or fines f of the heating chamber through the passages (6 whilst air for supporting combustion of said is supplied through the regenerators g and the passages 6 In ascending within the heating'passages or fiues f the is partly burnt. The partly burnt fuel receives an additional supply of air through the passages c, whereupon combustion is completed within the passages f in which the gases descend, the

'direetionof flow of the gases and of the pri- 'tion is completed within the passages F. In

this instance the burnt gases are used for heating the regenerators 9 It will beunderstood that any suitable number ofadjacent passages f and i may be combined in the nanner indicated, and that my invention is not limited to the construction shown in:Figs. 3 to 5 in which the heating chambers are each divided intotwo sets of heating "passages f and 7. In some cases I combine all the passages ofthe heating chambers, the'airascending in all of said passages and descendin in the passages of the adjacentheating cham er.

When using poor gas I provide regenerators for air and gas, and in the case, instead of supplying additional air I can supply additional poor gas preheated in recu erators similar to those used for preheating t i'e additional air.

I, claim: v i

1. In a coke oven, a horizontally elongated coking chamber, heating chambers juxtaposed to the opposite sides of the coking chamber arranged with partitions extending transversely to said coking chamber and iupward from the bottom to adjacentthe topof each of the heating chambers separating each of said chambers into flues communicating with each other at the topsof the partitions, regenerators arranged below and parallel to the coking chamber, fuel inlets to the bottoms of the fines, primary air passages connecting the regenerators with the bottoms of the flues for supplying air from said regenera-torsfto the heating chambers'for supporting combustion of fuel therein and arranged with means for controlling flow of air 'throughthe regenerators to the heating chambers and flow of products of combustion fromthe heating chambers through said passages, and *secondary air inlet passages connected with a source ofair' supply and extending vertically through the walls between the regenerators and through alternate partitions in. each of the heating chambers and having outlets from the tops of said alternate partitions'into the heating chambers for delivering a'secondary air supply to the heating chambers at a point remote from the bottoms of said flues.

2. A coke oven as claimed in claim ,1, wherein two regenerators are arranged end to end below the coking chamber, :the successive series of fines in one half of one of said heating chambers being in communication with one regenerator, and the series of successive flues in the other half of the same heating chamber communicating with another regenerator.

In testimony whereof I have affixed my signature.

GUSTAV OTTO WOLTERS.

Images