US1253760A - Coke-oven. - Google Patents

Description

L. WILPUTTE.

COKE ovm' APPLICATION FILED MAY 2, 1917.

Patented J an. 15, 1918;

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COKE ovEm. APPLICATION FILED MAY 2. I9IT- Patented Jan.15,1918.

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wi r vcsg [D INVENTUR L. WILPUTTE.

com-t oven. APPLICATIO N FILED MAY 2|19lL 1,253,760. Patented Jan. 15,1918.

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L.WILPUTTE.

COKE OVEN.

Armcmou men MAY}. 1911.

Patented Jan. 15,1918.

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U15 WILPUTTE, OF NEW ROCHELLE, NEW YORK.

COKE-OVEN.

Application filed May 2, 1917.

To all whom, it may comm (1'11.

Be .it known-that 1, Louis WILLUT'XE, a subject of the King of Great Britain, and a. re ident of New Rochelle, county of Vest-- chcster, in thcStatc of New York, have invented certain new and useful Improvements in Coke'Ovens, of which the following is a true and exact description, reference being had to the accompanying drawings, which form a part thereof.

My p esent invention relates to regenerative coke ovens and particularly to regenerati vc coke ovens of the type disclosed in my prior llatent 1212866, granted January 16. 1917 and consists in a novel arrangement of the outlet connections from the regenerative chambers, devised with the special, object in view of avoiding a certain objectionable operating condition with might sometimes arise under certain conditions of use with the particular form of regenerative outlet connections shown in my said priot patent.

The various features of novelty which characterize my invention are pointed out with particularity in the claims annexed to and forming a part of this specification. For a better understanding of the invention, however, and of the advantages possessed by it, reference should beiliad to the accompanying drawings and descriptive matter, in which I have illustrated and described I various forms of apparatus embodying the invention and by which each may be carried out.

Of the drawings: Figure 1 is an end elevation of a portion of a coke oven, partly in section on the line 1-1 of Fig. 2; Fig. 2 is I a sectional elevation, mainly in section on i the line2-2 of Fig. 1, but partly in section at thc'upper left hand corner on the line 2 2 of Fig. 1; Fig. 3 is a sectional plan taken on the broken line 3-3 of Fig. 1;

Fig. 4 is a sectional view of a portion of one of the air supply pipes; Fig. 5 IS a section taken similarlyto Fig. 1; and Fig; 6 a sec" tion takensimilarly to Fig. 2, showing a portion of a coke oven'of modified construc-.

tion.

In the drawings, and referring first to the construction shownin Figs. 1 to 4, inclusive, A represent parallel, horizontal, elongatedcokmg chambers formed in the coke oven structure. The walls separating the chambers A are made hollow, as usual, to

Patented Jan. 15, 1918.

Serial No. 165,809.

provide heating chambers which are divided up into a series of vertical heating flues B by the partitions C and CC, and open at their upper ends into the usual common horizontal flue D. E represents slide dampers mounted on the tops of the partitions C employed to regulate the port area b which flue B is connected at its 11 per on to the common horizontal flue D. Xdvantageously, as shown, the partitions G are enlarged in cross section at their supply ends to initially restrict the communication between the flues B and the flue D and to provide a better support for the slides E. Channels F running from the flues D to the top of the oven structure are provided as usual to permit the adjustment of the slides E, as well as of the gas burner nozzles hereinafter referred to. The passages F are normally closed at their upper ends. 'In the lower portion of the coke oven structure are 10- cated alternately arranged regenerator chamvantageously disposed in the passages I as well as in the spaces between the walls I. Each flue B is connected at the bottom, in the particular form shown in Fi 1 to 4, inclusive, with one regenerative of mber G and with one regenerative chamber GA, by a'corresponding pair of passages g', and each of the regenerative chambers G and GA isconnected by two passages g to two difierent fiues B for a reason hereinafter explained. Gas burner ipes J are located in passagesv formed in t e oven structure beneath the fiues B and supply gas through the burner. nozzles K to burner chambers K opening one, into the bottom of each flue B.

The supply connection to the regenerative chambers G and GA comprise a series of alternately arranged pipes, M and MA at each side of the batter Each of the pipes M and MA is located in a corresponding passage L formed in the lower portion of the masonry structure and, as shown, in line with the portions I. Each of the pipes M and MA are formed with suitably proportioned and arranged discharge orifices M. Thexorifices M of each pipe M register with a corresponding set of lateral passages L opening from the'corresponding passage L into the adjoined regenerative chambers G, while the discharge orifices M of each pipe MA register with another set of'lateral passages opening from the corresponding passage L into the adjacent regenerative chambers GA, as is shown clearly in Fig. 3.

The regenerative chambers G are con nected by a series of portsP formed. in the bottom walls of these chambers to waste gas sole channels N, while the regenerator chambers GA are connected by ports-PA to waste gas sole channels NA. In the preferred construction illustrated there is a sole channel N and a sole channel NA under each oven chamber A at each side of the battery between the corresponding pair of walls I.

The burner pipes J are arranged in alined pairs extending into the oven structure or battery from its opposite sides, and the same is true of the supply pipes -M, the supply pipes MA, the sole channels N, and the sole channels NA. The adjacent ends of the alined pairs of sole channels N and NA are separated by masonry NB. The pipes M and MA are preferably removably mounted in place so that they may be withdrawn for cleaning, removal, or to permit the orifices M to be adjusted, which may easily be done in some cases by reaming out the orifices and in other cases by replacing the withdrawnpipe by a new one in which the orifices are of the proper size. I

Each of the sole channels N and NA, and the supply pipes M and MA at one side of the-oven structure, is connected to the corresponding one of a pair of tunnels or titles Q running along the'opposite sides of .the battery. In the connection shown each of the pipes M isconnected to the corresponding flue Q'by a. simple elbow connection M and each of the pipes MA is connected to the corresponding flue Q by a pipe connec-- tion M,'1ncluding a cutoff valve M". In addition each of the pipes MA isconnected to the corresponding one of a pair of gas supply mains R by a pipe connection M including a. reversing valve M having an operating arm M Each burner pipe J is also connected to the corresponding gas main R- by a pipe connection J including a cutofl valve J and a reversing valve .1. Each reversing valve J is provided with an operating arm J and the various operating arms J and M are in practice GOImected to suitable reversing mechanisms ordinarily located at the end of the battery. Each sole channel N and the sole channel NA, located alongside of it between the same pair of walls I are connected to the flue Q by a common double valve easing N provided with two inlet chambers N and to which the corresponding sole channels N and NA are res ,-ti"ely connected. Each of the chambers' .N and N is connected by an individual port N to the valve outlet chamber N which opens directly to the flue Q. Each of the ports N is controlled by a corre 'sponding valve disk N moved toward and away from its seat byte corresponding valve operating arm N'-, which m be connected to reversing mechanism also ,irdinarily located at the end of the battery.

1n the construction, somewhat diagramniatically illustrated in Fig. 3, the two fines Q at the opposite sides, of the battery are connected at one end of the battery by the cross channel Q. An air supply connection Q which may lead from a blower (not shown) opens to the cross connection Q,

.and a flue Q leads from-the cross connection nection Q The, two gas mains R at the opposite sides of the battery are connected by a cross con nection pipe R, to which are connected two supply connections R and R each including a cutofi valve, R, and opening to the pipe R between the regulating valves S and S in the latter.

- The oven construction described is adapted for operation in two different ways-, In one contemplated mode of operation the oven is commonly described as operating as a coke oven, and in this case the combustible gas supplied for heating the oven is gas generated ,in the chambers A, which after being purified and cooled is supplied to the appropriate burner pipes Jthrough the cor responding gas main R and supply connection R In this case the regulating valves S and S the stop valves J in the pipe connections J and the valves M in the pipe connections M are all open, the valves M in the pipe connections M are all closed, and the regenerative chambers G and GA- are all employed to preheat air supplied to the lower ends of the fines B.

In operating as a coke oven, with the valve S in its full line position, for example, the flue Q. at the left hand side of the battery seen in Fig. 3, receives air from the which may be air supply connection and passes the air thus received to all of the regeneratlve spaces Gr and GA under the left hand side of the oven through the pipe connections M and M, and the supply pipes M and MA. At the same time all of the gas valves J at the left hand side of the battery are open and combustible is supplied to the corresponding burner pipes J through the left.

hand main R from the coke oven gas supply connection R the cutoff valve It in which is then open. In this condition of operation the valve disks N in all the valve casings N at the left hand side of the bat tery are seated, while all 'the valve disks N in the valve casings N at the right hand side of the battery are open and the flue Q, at the right hand side of the battery is in communication with the chimney stack. Operating' in this manner the air supporting com bustion is preheated as it passes up at the left hand sideof the oven to the fines B in which combustion is to begin, While .the burnt gases descend through all of the regenerative chambers under the right hand side of the oven and heat-up the checker work in the latter. After operating with this direction of flow for the prescribed. pe riod, which is usually about thirty minutes, the direction of flow through the various regenerative spaces and heating fines is reversed by closing the gas valves J at the left hand, side of the battery, and opening the corresponding valves J at the right hand side of thebattery, opening the valves N at the left hand side of the battery and closing the valves N at the right hand side of the battery, and shifting the reversing valve S from its full to its dotted line position.- a

In the second contemplated mode of operation the oven is commonly said to operate as a gas oven, and in this case the combustible gas supplied for-heating the oven is roducer or like gas, which is preheated be ore passing to the combustionfiues B by being passed through the regenerative cham bers GA. In this case the valves in the pipe connections J are adjusted to close said connections, the stop valves M 4 in the pipe connections M are all open at one side of the battery and closed at the other side, the stop valves M in the pipe connection M are all closed and the valve R in gas supply (IifllllllI-(filfill R is closed while the valve R in gas supply cm'inection ll is open. When the oven is operated as a gas oven with combustion starting in the fines l5 atthe left hand side of the'battery, air is supplied to the left hand regenerative chambers G through the pipes M from the ran-responding flue Q as when the oven is o 'ierating as a ,fco'ke oven. tible is supplied to the gas main R.

The gas thus supplied passes from the left At the same-time combus' hand gas main R to and is preheated in the left hand regenerator chambers GA passing through the pipes MA and open pipe con-' nectipns M. In this mode and stage of operation, the burntgases descend through and reheat the generator chambers (l and GA under the right'end half of the oven structure. XV hen the direction of How through the combustion flues is reversed the left hand valves M are closed and. the right hand valves M are opened, and the valve S is shifted from its full line position to its dotted line position.

\Vith the apparatus described it is" possible by suitably proportioning the discharge ports of the supply pipes M and MA to supply exactly the proper amount of air to the different regenerators G, and air or gas, depending upon whether the oven is used as a coke oven or gas oven, to the regenerative chambers GA.

The revisions described for accurately proportioning the supply of the air or air and gas to be preheated in the different re generators,,and for adjusting the supply of combustible gassupplied to the various flues B from the burner pipes J made possible by the use of removable burner nozzles K, coupled with the adjustable slide churn bers E, and a proper initial iiroportioning of the various waste gas outlets P and PA from the different regenerator chambers. make it possible to obtain the distribution of both the ascending and descending streams of burning gas in the combustion flues B and regenerators necessary to insure the desired uniform coking of the coal charged into the chambers A.

Whilethere' are tortuous connections lictvveen the various regenerative spaces (l, under each half of the oven formed by the corresponding waste heat outlet ports 1 and the sole channels N into which they open, and similar tortuous connections between the regenerative chambers GA, under each half of the oven, formed by the outlet ports PA, and the sole channels NA, there need be, with the pressures and velocities of flow prevailing in properly devised and operated apparatus, no appreciable flow under normal condition of operation from one regenerative space into another regenerative space through such tortiuius eonnec 4D 1 tween any other pair of walls I.

from a sole channel occurs. This may be done by altering the relative sizes of the correspondingv supply ports M.

While the construction described thus permits of a possible flow of air from one regenerative space G into anotherregenerative space Gr, or a possible flow of air or gas, as the case may be, from one regenerative space GA into another regenerative space GA, there is no possibility of any flow through the sole channels from one regenera tive space Gto a regenerative space GA or vice versa. This results from the fact that when air or air and gas is being supplied to the set of regenerative chambers G and GA, under either half of the oven the corresponding sole channels N and NA are closed at their outer ends and there is no possible communication between the sole channels N on the one hand and the sole channels NA on the other hand. There is therefore no possibility of any flow through the sole channels resulting in combustion or the formation of an inflammable mixture of gas and air at the lower ends of the regenerator chambers. It is this segregation of the outlet connections from adjacent regenerators which primarily distinguishes the present construction from that disclosed in my prior patent referred to above, and

avoids a possible defect of the construction of my prior patent under certain operating conditions.

IuFigs. 5 and 6 I have illustrated the application of my present invention to an oven structure differing from that shown in Figs. 1 to 3 in that the ports I are omitted so that there is no communication between the regenerative space between any one pair of walls I and the regenerative spaces be- VVhile in accordance with the provisions of the statutes I have illustrated the best forms of my invention now known to me,

it will be apparent to those skilled in the art that many changes may be made in the form of the apparatus disclosed without departing from the spirit of my invention,

and that certain features of invention disclosed herein may sometimes be used with advantage, without a corresponding use of other features.

Having now described my invention, what I claim as ne'w and desire to secure by Letters Patent, is: 1. In a regenerative cokeoven having a coking chamber, a heating wall at the side of said chamber, two groups of heating fines in said heating Wall, and a passage to which one end of each'of the fines in both groups is connected, a set of regenerators to which I the opposite ends of the fines in one group are connected, and another set of regener-v 'ators to which the opposite ends of the lines in the other group are connected, each reof said chamber, two groups of heating flues generator being connected to a partpnly of the flues in the group to which the correare connected, another set of regenerators to which the opposite ends of the flues in the other-group are connected, each regenerator being connected to a part only of the flues in the group to which the corresponding set of regenerators is connected, and means for supplying air to be preheated to some of the 80 regenerators of each set and gas to be preheated to the other regenerators of each set, th improvement which comprises waste gas outlet connection to the regenerators in which air is'preheated and separate waste gas outlet connections to the regenerators in which gas is preheated.

3. In a regenerative coke oven having a coking chamber, a heating wall at the side in said heating wall, and a passage to which one end of each of the flues in both groups isconnected, a set of regenerators to which the opposite ends of the flues in one group are connected, another set of regenerato'rs to which the opposite ends of the fines in the other group are connected, each regenerator being connected to a part only of the flues in the group to which the corresponding set of regenerators is connected, means for supplying air to alternate regenerators and gas to the remaining regenerators of each set, and a separate waste gas outlet rom each regenerator, the 1m rovement WlllCll comprises a conduit into w ich the said outlets from said alternate regenerators of each set open, and

a separate conduit into which the said out lets from the other regenerators of the set open.

4. In a regenerative coke oven having a cokin chamber, a heating wall at the side of said chamber, two groups of heating flues in said heating wall, and a passage to which one end of each of the lines in both groups is connected, a set of regenerators to which generator, the improvement which comprises a conduit into which thewaste gas outlet from saidalternate regenerators of each set open, and a separate conduit into which the said outlets from the other regenerators of the set open, and valves controlling the flow out of said conduits. I

5. Inare nerative coke oven-having a cokin chain I81, a heating wall' at the .SldG of sai chamber, two groups of heating flues in said heating wall, and a passage to which one end of each of the fines in both groups is connected, at set of regenerators to which the opposite ends of theflues in one group are connected, another set of regenerators to which the oppositeends of the fiues in the other group are connected, each regenerator being'connectedto a part only of the lines in the group to which the corresponding set of regenerators is connected, means for supare connected, and valves controlling communication between said'oonduits and said common flue. a l

6. In a re nerative coke oven having a cokin ,cham r, a heating wall at the side of sai chamber, two groups of heating flues. in said heatingwall, and a'passage to which v one end of each'of the flues in both groups isconnected, a set of regenerators to which the opposite ends of the lines in one group are connected, another set of regenerators to which the opposite ends of the lines in the other group are connected, each regenerator being connected to a part only of the fines in the group to which the corresponding set of regenerators is connected, suppl connections M to alternate regeneratorso each set,

supply connections MA to the remaining regenerators of each set, and gas nozzles at t e bottoms of the fines, the improvement which com rises a gas main, a main sup lying air to t e connections M and MA, va ves Qcontrollin communication between said last mentione main and the connections MA, valves controlling; communication between the gas main and said connections MA, and valves controlli communication between said gas main an said gas nozzles.

LOUIS WILPUTTE,

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