US1186687A - Coke-oven. - Google Patents

Description

N. SCHUSTER.

COKE OVEN. wnmaum HLED UtC. 2:, 19H.

PutontvdJune 13, 1916.

3 SHEETS-SHEET l-.

fi IWW, V I

I AM /(M N. SCHUSTER COKE OVEN.

APPLICAYION FILED 05c.

5Q Wym NICHOLAS SCHUSTER, OF WESTMINSTER, LONDON, ENGLAND.

COKE-OVEN.

Specification of Iietters Patent.

Patented June 1 3, 1916.

Application filed December 21, 1914. Serial No. 878,420.

T all whom it may concern.

Be it known that I, NICHOLAS Sonusrsn, subject of the Emperor of Germany, residing at 7 Princes street, in the city of VVestminster, London, England, have invented certain new and useful Improvements in Coke-Ovens, and of which the following is a specification.

This invention relates to coke ovens of that type in which the gas for combustion is admitted through passages in the structure below the heating fines, and in which flues, running parallel with the said gas passages and also below the heating flues, serve for the exit of the products of combustion.

The primary object of the present invention is to provide means whereby the gas for combustion admitted to a coke oven sh all not become too highly heated during its flow in the passages beneath the ovens. It is known that if the gas introduced for combustion reaches too high a temperature, de-

composition and deposits of free carbon are brought about by the radiant heat prior to the gas passing into the combustion chambers.

Where passages through which the gas for combustion is introduced into the combustion flues of a. coke oven, extend any considerable depth into the structure, and where such gas passages are at intervals throughout their length formed with delivery nozzles or apertures at intervals apart through which the gas passes into the combustion fines, the pressure of the gas so delivered into the heating flues through nozzles is greater adjacent to the entrance of the gas passages, and diminishes toward those ends farthest away from the supply, and a further object of the present invention is to provide an improved construction by which this disadvantage can be entirely or in great part overcome, and at the same time to so locate the exit nozzles from the gas passage-s relatively to the surrounding structure, that the said gas exit nozzles cannot be choked by falling" dust or other debris. According to this in ention, in order to prevent the gas, passing through the gas admittance passages in the structure, becoming too highly heated. I provide, adjacent and parallel to such passages, a cooling passage extending entirely through the structure and arranged between each gas pas sage and exit flue for the products of combustion, the cooling passages being open to the atmosphere, and in some cases I connect such air cooling passages at some point in between their ends with one or moreof the fines in the oven which is in communication with the uptake, so that a current of cool air is automatically drawn through said air cooling passages.

11 order to regulate the flow of gas for combustion to the combustion flues, I make the passage extending into the structure, into which the gas for combustion is admitted, tapering at that end farthest away from the supply, that is to say the inner end of the passage is formed of gradually decreasing cross sectional area, and in conjunction with such an arrangement I in some cases provide an auxiliary parallel passage supplied at its outer end with combustible gas and communicating at its inner end with and near to the inner end of the first mentioned gas passage so as to provide an auxiliary supply of gas to the main or principal gas passage. Beyond this I locate the nozzles of the gas passages within a chamber having inwardly and'upwardly inclined side walls, one of the walls overhanging the nozzles, and I providewithin the chamber, a recess parallel to the nozzles to receive any debris, all as hereafter described.

I will describe my invention with refer- I once to the accompanying drawings which show an example of construction and arrangement as applied to a regenerative coke oven of the kind referred to in my Patent application No. 878,419, of even date herewith.

Figure 1 is a longitudinal section of the right hand half of the structure, this section being taken through the heating fines in one of the side walls between two ovens, and Fig. 1 shows the left hand half of the same coke oven, this section being taken through the adjacent coking chamber. Fig. 2 is a transverse vertical section of the structure taken about tlie,line X-Y of Fig. 1 and drawn to a slightly larger scale than the latter figure. Fig. 3 is a horizontal section taken about the line XY of Fig. 2.

Referring to the drawings, particularly Figs. 1, 1 and 2, the gas inlet passages 1 extend from the exterior face of the s'ti ucture beneath the combustion lines 2 in each side wall 3 dividing the coking chambers 4; and in the construction shown the saidgas passages l terminate just before reaching the lot , the passages 16, and therefore indirectly center of the combustion fines in the sine .Walls as shown at Fi 1, und other similar gas passages extend from the opposite exterior face of the structure. Gas is supplied to the passages 1 from the main 5 through a pipe 6 and nozzles 7 controlled by cocks 8. Each passage 1 in the structure pro vided or formed with delivery nozzles or apertures 9, through which the gas passes into the combustion fines 2, and by re nleting the cocks 5: gas can be admitted t the right hand half of the combustion tlues, h .l, and shut off from the other half, l or vice According to the present invention cooling passages 24: are formed in the structure one on each side of the gas passages 1 and extending parallel therewith, the said cooling passages 24, as snown in Fig. 3, being opennt their ends to the atmosphere and extending entirely through the structure between the said gas passages 1 and passages 16, through which passages 16 the products'cf combustion pass. The cooling passages 24 may also be connected by pa$ages 25-With with the uptake, and consequently a current of cool air flows through the cooling passages 24 from the open ends thereof, and maintains the gas passing through the gas passages 1 at a temperature below the point at which decomposition ot the heating gas sets in. say about 420 C.

In the particular'coke oven to which the invention is shown applied in the drawings merely by way of example, each of.thc pas sages 1G is connected by a passage such as 17, Figs. 1 and 3, with one of a plurality of rcgcncrntiinr chmnbers formed in two pairs of tunnels 19, Fig". 1, 1 and 2, constructed in the base of the structure, the said pus sages 1G beneath the sole of the coking chamber being connected by passages 18, Figs. 1 and 2, Iith the bases of thecombustion fines 2, so that of the two passages 16 under one of the coking chambers for instance, one of the said passages serves for the admittance of heated air from n regenerating chamber, while the other passage 16 at the same period serves for the exit of the products of combustion, which latter pass through another regenerating chamber; at another period the functions of the passages 16 are reversed.

Each of the gas passagesl formed in the structure upon opposite sides, isconstructed of uniform cross sectional area for the greater part of its length, and its end farthest away from the supply is formed taper ing as at 26 Fig. 1, whereby I am e sbled to equalize the pressure and lion of the gas through the nozzles 9. I further in some cases provide an auxiliary passage fed through th' upply pipe 6, the said pus- 2? openin o 1 Where the :on'niuinces,

istens? n auxiliary supply of gas to u'ith inciined side walls ach other before they reach l cm 'icr into the 1mm at Fig. 2, and hat one of the side Walls 1 and at the opposite 1 form a recess in the or, mhcr will fall into the not tend to choke the nozzles 9. the umber opens into the the said chamber may be slightly, as indicated at my invention and desire L tters Patent is:

inning in combination a series wiring chzunbers formed therein o her, the side walls of said u'h ha a. heating flue .srein, s d structure having comicuctibie gas suppiy passages communicatwith each heating flue and extending in the. structure below said heating lines, means for upplying suidgns to said gas suppiy pnsse es and for controlling said gas suppiy, tines for the exit of products of combustion extending beneath said coking, chambers running parallel with .said gas passages and communicating with said heating fines, said structure being formed \i'it-h air cooling passages each passing entirely through sci structure being open at both ends to the each Sid: t s.,id gas passages and between said gas passages and said fines through products of combustion pass, in order 19 gas passing through said at a temperature below the u 'hich decomposition of said gas sets In a coke oven of thetype specified; a structure having in combination a series of separate coking chambers formed therein parallel lo each other, the side walls of said coking chambers each having a' heating lluc formed therein, said structure having combustible supply passages communicating: "with each heating fine and cx'tcndin; in the structure below said heating fine. means for suppiyingz said to said gas supply passages mid tor controlling said gas supply, fin 1 for exit of products of combustion extending be earth said coking chambers ilel with said ens passages and with said heating fines, said iOKiliQCi with air cooling pas i I locate the said bris, so that debris ,tmosphere and located one on sages each passing entirely through said structure being open at both ends to the at mospherc and located one on each side of said gas passages and between said gas passages and said lines through which products of combustion pass, said structure having passages communicating between said air cooling passages and the said lines through which the products of combustion pass,

3.111 a coke oven of the type specified; a structure having in combination a series of separate coking chambers termed therein parallel to each other, the side walls of said coking chambers each having a heating flue formed therein, said structure having combustible gas supply passages extending therein below each heating flue, said gas supply passages having delivery nozzles, a

chamber having inclined side walls above said delivery nozzles located below the base of the heating fines and having a passage to convey gas from said nozzles to said heating tlucs, one of the walls of said chamber being inclined to overhang said gas nozzles. means for supplying said gas to said gas supply passages and for controlling said gas sup ply. fines for the exit of products of combustion extending beneath said coking chambers running parallel with said gas passages and communicating with said heating fines. said structure being formed with air cooling passages each passing entirely through said structure being open at both ends to the atmosphere and located one on each side of said gas passages and between said gas passages and said fines through which products of combustion pass, in order to maintain the gas passing through said gas passages at a temperature below the point at which decomposition of said gas sets in.

4. In a coke oven ot the type specified; a structure having in combination a series 0 separate coking chambers formed therein parallel to each other, the side walls of said coking chambers each having a heating flue formed therein, said structure having coin bustiblc gas supply passages extending therein below each heating tlue, said gas supply passages having delivery nozzles a chamber having inclined side walls above said delivery nozzles located below the base of the heating fines and having a passage to ci'invey gas from said nozzles to said heating fines. one of the walls of said chamber being inclined to overhang said gas nozzles. said chamber with which said gas nozzles communicate having a, recess formed in its base and extending below the exit end oi said gas delivery nozzles to receive debris, means for supplying said gas to sa d gas supply passages and for controlling said gas supply, lines for the exit of products of combustion extending beneath said coking chambers running parallel with said gas passages and communicating with said heat ing fines, said structure being formed with air cooling passages each passing entirely through said structure being open at both ends to the atmosphere and located one on each side of said gas passages and between said gas passages and said lines through which products of combustion pass, in order to maintain the gas passing through said gas passages at a temperature below the point at \vhichfdecomposition of said gas sets in.

5a In a coke oven of the type specified; a

' structure having in combination a series of separate coking chambers formed therein parallel to each other, the side walls of said coking chambers each having a heating flue termed therein, said structure having combustible gas supply passages communicating with eachheating line and extending in the structure below said heating line, said gas supply passages being each of uniform cross secticmal area for the greater part of its length extending from the exterior of the structure but oi gradually toward its inner end. means for supplying said gas to said gas supply passages and for controlling said gas supply. tines for the exit of;v products of combustion extending beneath said coking chambers running parallel with said gas passages and communicating with said heating incsfsaid structure being formed with air cooling passages each passing entirely through said structure being open at both ends to the atmosphere and located one on each side of said gas passages and between said gas passages and said tines through which products ot combustion pass in order to maintain the gas passing through said gas passages at a temperature below the point at which decomposition of said gas sets in.

(3. In a coke oven of the type specified; a structure having in combination a series of separate coking chambers formed therein parallel to each other; the side walls of said coking chambers each having a heating i'luc tormed therein. said structurc ha vingcombnstible gas supply passages communicating with each heating line and extending in the Structure below said heating flue. said gas supply passages being each of uniform cross sectional area for the greater part of its length extending from the exterior of the structure but of gradually dccrcasingairea toward its inner end. said structure halving an auxiliary gas supply passage formed therein parallel to each of said principal gas supply passages and communicating therewith near the inner end ol' the latter, means for s-i1pplying said gas to said gas supply passages and for contiolling said gas supply, fines for the exit of products of combustion extending beneath said coking chambers running parallel with san gas passages and communicating with said jlieatdecreasing area iii. both um! lmulwi' um: um

gm nns oint at uhjvh Wis :11.

In WillliSS \vhm'vnl' I my hum! in the ducmnpmitiou of said gas 13 hum hvH-unfu s01; prusunr-v ul' twn witnussvs. NICHOLAS SCHUSTIIR.

W111. m M A. M A us: IALL.

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