US898439A - Horizontal regenerative coke-oven, &c. - Google Patents

Description

F. Jk GQLLXN. HORIZONTAL REGBNERATIVE com OVEN, @0. APPLICATION PILEDMAR.21, 1907.

2 SHEETS-SHEET 1.

E. J. GOLLN. HORIZONTAL REG ENBEATIVE COKE OVEN, 6m. on FILED MAR; 21, 1907.

APPLIOATI Patented 89191511.53i 1908,

z SHEETS-SHEET z,

5 m ,j Anf sirena .enten FRANSE .iSEPl'4 CGLLXN, 0F DORTMUND, GERMANY.

ne. senese.

' the foil-swine is e s eeiiioation.

lu ail systems or colse ovens with reversal of draft, and partioularly in the oase oi the regenerative oohe ovens Worked in this manner, the principle ot effecting the heating oi the heating ilues aiternately with fresh gas and with waste heat (that is to say, the products of combustion of the heating gases) resides in the fast, that part of the viali assagges is heated with 'fresh gas, While the ot er part y however is heated only 'oy the Waste heat ot' the iirst mentioned part, that is to say with. the products oi combustion, passing through said ehannelsand generated by the heating.

gases. When the draft is reversed the operation is also inversed, so that the passages which have previousiy been heated by Waste heat only are now fed oy fresh heating gas, While the ohanneis previously heated with gas, are now exposed to the Waste heat only. rlhis system shows the' inconvenience, that the temperature is appreoiably reduced at each reversai of draitin the wall passages serving 'ior the carrying ofi of the Waste heat. rihus s oonsti-intly re eated fluctuation of' temperature in ali wai passages taires place, whenever the change, of draft is effected. Besides the 'deleterious e'ects upon the ireprooi ini'isonry, these iiuotuations interfere with the operation of the oven or kiln and Consequently with the output.

The invention, about to ne described, is intended, to overcome this inoonvenie'noe by using; aeonstant and dirent-supply oi gas for' the heating oi all the heating passages or channels the side walis. vWith this end in View every heating ohannei or passoire is provided in the first place at either eno, that is to say at the top and at the bottom, with a heating appliance, that is to say with a eeding nozzle for admitting the heating, gas. These two heating appliances eiieot the heating oi the ohannei alternately and in op osite directions. When one of the heatlng appliances in operatiiim, the other heating appiiauee out oit'. The particular channel or passage to vvhioh the two heatinr appliano-es belong, therefore continuous y heated hy dire-et heet. esule from the two heat- .Speoeation of Letters 'Eat/ent.

Eatented Sept. 15, 1908.

ppiieetion filed aroh 21, i967. Serial lio. 363,587.

ing appliances, every Wall heating Channel itself is preferably provided in addui n with two special connecting lues, leading to the f regenerators, which will alternately produce the hot air required for the combustion of the heating gases or which carry oit the Waste heat. By means of these two connecting iiues and by the two heating a plianoes, the change or' (irait in the several lieating channels or passages is made possible, Without any neoessit of temporarily interruptingthe heating of t e same.

Upon the accompanying drawing the new arrangement is illustrated, Figure 1 being a longitudinal section through one of the chambers of the oven, and through one of the bottom iues and the regenerator or producer. Fig. 2 is a similar section through one of the Walls of the oven, the gas admit.-v

ting passages and the regenerator. Fig. 3 represents cross sections on the lines A-B, (JL-D, and E--F respectively of Fig. .2, taken through the oven, the Wals and its bottom channels. in Figs. 4 and 5 various forms of arrangement of the Wall passages or channels are shown for the alternate admis sion of air and the carrying off of the Waste heat in the ribs or wall heating ohanne pro er. Fig. ois-a' iongitudinal section throng one of the walls oi" the oven with speoiai arrsagement of the feeding channels for the heating gas.

For effecting the change of: draft the usual, Well-known devices, `auch as reversing flap and gas vaives, are employed inthe construction of apparatus shown, the reversing iis-ps serving, as is well known, for the purpose oi direoting'the gases of combustion (the Waste heat). into the chimney through one of the gas producers or regenerators aooording to the position of said iiap and for the purpose ofconuooting the other regenerator at the same time with the air admission. channels, While the gas valves elieot 'alteri mately the opening and closing of the lower and of'. the upper gas heating appliance. The movements of the reversing flap and gas valves are preieraol so arranged, as to be dependent upon eac other, in such a manner, that'when the reversing artitions between the Hap is turned.,i the gas valves are also reversed.

4 the same. The bottom channels or passages .connected to two bottom iiues, Athe heating channelsdf being `connectedto the bottom iiue a an he channels t' to the bottom ues a. The .bottom lues or ducts a, a and a', a/

are respectively arranged below the oven a, a are connected by the openin s a2, a2 to the regenerator or producer G an the channels ai, 'a' are connected to the regenerator or producer G by means of the openings as, a?. ""The size ofthe connecting openings es and a maybe regulated by closing slides o*- and a, which can be operated in suitable manner. When the reducer or regenerator G which is connected) to the bottom iues a', is eecting the carryingoii" 0T the waste heat 1 (gases of combustion),that is to say, when the gases of combustion are carried off to the chimney by this iegenerator, the heated air, which is required for the, combustion of the heating gases, risesrom the other're enerat'or G, into the bottom dues a and t rou h the lateral openings 7c of the same into t e wall channels or passages f, where it effects the ignition ofthe heating gas, which is admitted from below into tlie'wall passages f,

from the 'conduits g, through channels 1', and This kind of arrangement is old.

nozzles s.

he burning mixture of gas and air however,

lrom the wall-channels or passages f isnot caused Ain the presentk invention to pass through art ofthese wall channels or pasf sages f t emselves, which are not fed with heating gas and are connected to the chimney, as has been the usual practice heretofore, but the said mixture of gas and air is 'carried ofi through the dues i, which are arranged in the bond biicks, that is to say, in the s e arating walls f (see Figs. 4 and 5), provi ed between the wall channels f, in a manner, similar to that shown with reference to the ovens without producers ror regenerators described in German Patent 114828.

- Upon then effecting the change of draft by shutting the lower heating gas admitting conduitand opening the upper conduit, and by connecting the regenerator G to the chimney by reversingthe reversing Iiap, the flues z' are employed as air conduits for the heating of the upper part, and the gas, which is forced in:from above by means of nozzles s from the conduits g', andthe distributing passages 1*', and which is ignited by contact of insurin 'or channel i.

assess with the heated air, fedinto the @ues t from the re enerator or producer G', drops down throng the wall channels f into the bottom iue a, and thence it asses to the regeneratcr orproducer G and ally into the chimney'. In this manner the alternate heating of the wall channels f is effected from above on the one hand, and from below on the other handI so that the said channels are heated continuously without intel-ru tion. The arrangement of the fiues t in the separating walls f of the wall channels f is preferably elfected, in the mostvsimple manner according to the arrangement shown in Fig. 5, for the purpose good effects. As will e seen from this gure, every rib or partition j is provided between the channelsf with a iue ,to Fig. 4, several Wall heating channels-f are provided with one common r ue i, which in this case would have to be made correspondingly larger than in the construction shown in Jig. 5, where every channel f is provided with a corresponding flue i. e

In Fig. 2 the admission of' the heating' gas taires placeinto the nozzles s and s freni the conduits g and g and through the charm-eis r and 1", this arrangement showing at each side of the oven. one conduit g, and one een duit g', as illustrated in the drawing, so that each one halt` ofthe heating ohannelsj'in the partition wall between the oven chambers is furnished with heating4 gas Jfrom the end parts of the laut, the as distributinga channels r and r eing divi ed in the middle by a web r. In Fig. 6 a modification of thm eonstruction is shown, which is distinguished by the fact, that in the to part and in the bot In the arrangement according tom part of-the oven t ree heating gas con*` duits each are arranged qa, gb, gc and ire# spectively gm, gm, q c, which admit the heat ing gas through channels rg, rb, rc and ren s ectively r1.1, rgb, r1., to smaller series of lwall c annels f. By means of this-arrangement it is intended to feed heating gas vimirerrnly to those wall channels or passages f also,

I which are situated at a greater distance from the end wall, that is Ato say incre towards the middle of the oven. The 'webs orfpsititions x a: which separate the channels ra, rb, ra and 13a, 13b, rw may also be dispensed with, inas much as the eating gas is distributed over one half of the length of the oven by the sevn eral conduits oi' di'erent length, which lead 0H from gw gb: go and gie gib: gio respc" tively. In the same manner the center web or artition y I nay also be dispensed with, wit iout interfering in the leastwith the operM ation of the oven. The webs :t and serve therefore for insuring a perfectly relia le ldistribution of the heating gases to the heating channels. i

` The onstructional modifications, illustrated in Figs. 2 and 6 may be combined each'other in such a manner, that inthe which egtends as far as the middle.

o ments, which inA themselves A'channels of the walls ofthe'oven 1s produced,

assess lower part: the distribution of the heating gases taires plaoe'in the manner shown in Fig. 5 that to say by means of the channels r, TMre While in the upper part only one channel 7V is arranged, as shown in F 1g. 2,

The arrangement 'may also be reversed, that is to say, in the upper part, three separate gas admitting conduits may be provided, while in the lower part only one channel of this kind is arranged. All these variations are not essential for the spirit of this invention.

By the combination described of arrangeare mostly Wellkn'oivn, the change of draft in the heating Without interrupting the direct heating of the same, in view of the heating of the wall channels or Wall passages, which had previously taken place from below for instance, being changed to a heating from the top at the moment of the reversing of the reversing flap and oi the gas valves. The advantages accomplished are quite important, inasmuch as by the arrangement described a continuous intense heating of all the wall channels isproduced and at the same time all the luctuations Vof 'temperature met with in the previous plants, are done away with, and the shortest paths possible are furnished both to the heating gas and to the air, and then, Aall differences of draft .and pressure for the several heating channels are obviated and greater durability is moreover imparted to the 'nre-proof material of the masonry, becanse the differences of pressure and o draft and the continuously repeated uctuations of .bric s in the masonry of the Wal s, and cause them to become untight, 'are overcome. The result of the continuous and direct heating of the wall channels is a very considerable increase in the out ut Aand production of coke in particular. hurthermore than that, the system of heating described, affords the lpossibility of accomplishing the increase of eight of theoven chambers, so much aimed at nowadays, without any fear of causing too great a loss of heat to the heating lues, by the time the heat reaches the ends of the same.

What I claim and desire to secure by Letters Patent of the United States is:

A regenerative coke oven, comprising a pair of regenerators, a pair of coking chamers, vertical heating iues intermediate the coking chambers, meansl for admitting a heating medium alternately to the upper and lower ends of said flues, a first duct connect# ing the first regenerator with the lower end of the ilues, a second duct communicating with the second reeenerator, and passa es intermediate the fines for connecting t e upper ends of said ilues with said second duct, substantially as specified.

In witness whereoffl have hereunto si ed my naine in the presence of two subscri ing Witnesses. v

FRANCIS JOSEPH COLLIN. Witnesses:

ALFRED POHLMYER, M. ENGELS.

Images