US1986903A

US1986903A - Coke oven

Info

Publication number: US1986903A
Application number: US509085A
Authority: US
Inventors: Totzek Friedrich
Original assignee: Koppers Co of Delaware
Current assignee: Koppers Co of Delaware
Priority date: 1928-08-31
Filing date: 1931-01-16
Publication date: 1935-01-08
Anticipated expiration: 1952-01-08

Description

Jan. 8,1935. p' o z 1,986,903

COKE OVEN Filed Jm. 16, ,1931 2 Sheets-Sheet l Jan. 8, 1935. F, T T EK 1,986,903

COKE.OVEN

Filed Jan. 16, 1931 2 Sheets-Sheet 2 Patented Jan. 8, 1935 a pqr t qnfqf'plaw re ation Januarylfi', 193. serialgNol-l .nhL e. i :A sw huj lhl z i "in in fThepresent inventionconsists ofimprovements heat hothiofrza; neighbouring pairof regenerators. in or relating to regenerativeeoke ovens for th "Althoughthisentailsthe situation of regenerators production of 'gasiandcokefand relates -to the which are pre-heating and regenerators which tyne of oven-having pairs or 'regenerator oham arei'being heatedinekt toone another in the direc- -l hers underneath the ovenohamberg each pair ofl ti'onof the battery' 'axis; which wasavoided in the rgenemtor chambers' being -divided by a central prior.specificatiomreferredtoy'the construction, transverse walLam. as i gr" according:to-theLpresent inventiomprovides re- Acc'ording to one feature of he invention a generators of sutficient sizeito pass the requisite regenerative cokefoven comprisesaupair 0f: regene; quantity'of gas and separated from one another erators situated onopposite'sidesofaeentral wall: by supporting wallsrof: adequate thickness, which transverse to the length ,ofaan oven ,chanibenan is of particular importance in an oven'employing extension passageway extending fromeach re preheatedlean gas; f i

generator over, the companion regenerate and Since, accordingto the present inventiomthere vertical heating flues 1 each pornniunicating- 1th is rno'substantialpressuredifference betweenan one'of rsaid-regenerators andn lfi nthr llgh the extension passageway andthe regenerator beextension passageway. with thecompanion regen; neath'it, on providing. expansion jointsin the dieratori v v it h; relation of'i the"'chamber axisi in the above block, ,The invention may bee bodie asa modifica-g only those channels will be out which are at subtion oftheoven deserihed in U, sgpatent applica stantiallyi the samefpressure so thatino loss of h a l c tion ,,d cribss. a r ene ati e to i 1' 4 i$ Iia B -{H6375of:E'riedriohJlfotaelr. j'lhat heating gaswilloccur through leakages into pas- 0.

V e even sages oarryingiexhaust gases. f t having; pairs of, heating fiues co nnfiunica l 1 The. invention may also be applied as a modifithat gasfiows upward1y one; flu .and down cation of the soicalled Becker oven described in wardly in the otherand: nneoted so that one flue TLuS. 3 patent. application. Serial No; 317 ,072 of communicatesiwith on regenerator and'the othen Ernst Leyh inowh PatentNo. -1-',802,518), in which flue with the eoinpanion regenerator. Thus one pairsxof verticalheatingflues are employed whereregenerator will serve t preheah w ethego n: ofloneflue is in Fa wall on one :side of an oven hpanion regenerator; is i y i y exhaust chamberpwhile the other fine is ina wall" on the ases. Each'regenerat serves flues owalls otherr'side ofthe chamber.

30: andeao wall isserved tors. Thus, the heating flnesof i a particulargwalli be supplied in therm'a'nner peeuliar to the known reeeive preheated air iron; one reset; or, Koppers oveni by arranging the rich gas passage pre heatedleangas iro naneighhouringregenera below anwovensolen Alternatively, the rich gas tor, whilethetwo com anionregenerators receive, may be suppliedidirectly from underfeedburners es. ex aust gas f o ,th exhaust ,hiies' pr thiwau; 'astinitheknown Ottodovens which are supported as In the construetiondescribed inihe. sfieoifioatidni on cellars without departingfromthe invention. referredltqeachr generator is eonne'oted'ilirectlj 'Inrorderithatthe invention may be more readily tonnes in that halg Ithe h atinwjall'situatedl understoodaspeoifichexample: thereof willnow be above it, and provided. w thfill ie ei siolil pa described with reference to the accompanying? 40;- sage extending overtheeornpaiiion"regiierator drawings inwmcnmh a 40 andeommunieating with fl ues inthTThalfof the Figure V 1Zisailongitudinalsection oni'the line wanjbvr said m am hre en rate 'Ijhiia'a a-rbof Figure 2.17hmuglflaheating wall and pair extension pass e will beICarryi -ig 9X1} list gases; of regenerators'bfhan oven of the Totzek type.

any ng1e nga orairlor yigeversag V j urem1 h p. y y h i i h i 45 6f; the" presetinvention} either the extension Figure swish-a .section similar to Figure 1 passage and "tl ie"re'geiierator b' it th? through an ovenuofrlthe Becker bross-over'type earryiiiQthe w e asemrhe one i F exemplifiedini Patent 374,546, and i i airi whilethe other soarrying lean gasw u l'Figure 4' isa section similar to Figure .2 of waythereisneverany substantial nressure dif the oven shown in Figure f3: 50:

fereneehetween the contents of anextensionpaswiLiker referencenunierals indicate like parts sageway and the regenerator-ib'eneath" i throughout thefiguresn 1 the-constructionr-to ibe-describe eari' gas -aAsashown in:Figures i and z'the oven charmand air are respectively f suppliedztoirm pair for bers'i are situated above the regenerator chamytwateinp egenra-jl Intheconstructionvillustrated; rich gasesinay 30;.

, 2 transverse to the length of an oven chamber,

extending the whole length of the oven battery, while the

regenerators

3 and 3a of neighbouring pairs are separated by a longitudinal wall 5.

When heatingwith lean gas a pair of regenerators'f will}. at":v any moment, eitherv both serve to pre-heat'orboth beheated by exhaust gases. Thus, for example, if the regenerator 4 is serving to pre-heat lean gas, the companion regenerator 3, being opposite it, will serve to pre-heatair,

while the regenerators 3a and 4a separated from them by the gas tight supportingwalls 5,

both be heated by exhaust gases." g

The air for the regeneratorsis' supplied from reversing members 7 through sole channels 6,

always from one side of iahe oiren,the case of the construction illustrated from the left hand side, while the lean gas to be pre-heatedis sup-v plied from the other side, i. e. in this case, from theright hand side, fromthe lean gas-:conduit 8,

through the reversing; memberB -and distributing.

channel 10.

The heating wall is p 11a andllb. The two-fluesofa pair commum'. catewith. oneanother. atv vtheircupper; ends, so that gas can pass up one flue and down the other.

Each regenerator'is provided with an extension passage passing scissorwise the 3 corresponding extension passage of the companion regenerator and. lying. above said. companion regenerator.

' Thus the regenerators 4 and 4alare provided re-v spectively. with extension. passages 14 and lying aboveitheregenerators 3. and 3a'respectively, while. the regenerators 3and3a are provided respectively with-extensionpassages.16 and 26 lying abovethe regenerators -4 and. 4a. r.espec.-.

tively.

Each of the vertical flues llain the left hand half of the wall as shown in Figure .1, communicates directly with a regeneratora3 through passages. 15,-.and-also throughv passages 13 and the extension passage 14 with a-r'egenerator .4. Similarly 'the passage's. 11a in the right-handhalf of the wall also .comm'unicate'with both regenr erators 3 and 4.by. means respectively'of passages 17 and-the extension 16 and direct passages 12. Similarly. eachjof the flues..11b,-communicates with a pair of regenerators-3a and-4a situated (in .Figure 1) behind the regenerators 3. and 4. Thus, in the left-hand half of the .wall, flues 11b communicate with regenerator. 3a directly through passages'18 and. with regenerator .411

throughthepassages -19 andtheiextension pas-' reversed, and the gases flow in an opposite direc-' tion., After reversal of the. reversing members 7 and 9- on the two sides of the oven, the exhaust gases are suppliedbythe'reversing members to the exhaust, channels.27 through the regenerator sole channels 6a andlOa. f

On heatingthe ovenwithrichgases, air for combustion will pass through both the

regenerators

3 and 4; or after reversal both the regenerators 3a and 4a. .The rich gas will thenbe suppliedthrough supply .conduit's122 arranged on.

passing over the oven chambers. given heating wall, all the flues have gas flowing ashes with pairs oftfiues either side of the oven battery to the heating flues 11a through the channels 23 in one working stage, and in the other working stage to the heating flues 11b through the channels 24.

The oven shown in Figures 3 and 4 is, in many respects, similar to that shown in Figures 1 and i 2. -"I'he chief difference, however," is {that of a pair of heating flues 29 and 36, one is in a heating .wall on one side of an oven chamber, and the "other is in a heating wall on the other side of the oven chamber, and they communicate by means of circulating channels 28 in the oven roof Thus, in a either downwardly or upwardly in them.

' The supply of gas and air to theflues and the removal of exhaust gases from the flues is-effect- -ed iii-the same way, as in the oven described in ;Figures 1 and 2. is only one pair of regenerators in communica- In this case, however, there tion with each wall. In theleft-handhalf ;of Figure 3, the flues 36 communicate directly with; the regenerator 3a through passages 33 and also through pasages 32 and anextension passage with the regenerator 4a. In the right-hand half, of the wall the flues 36 communicate .directly through passages with the regeneratorAa and with the regenerator 3a through passages and an extension passage 34. The flues 29of a neighbouring heating wall communicate similarly with

regenerators

3 and 4, I claim:

1. A' regenerative coke oven comprising, in; combination: a series of alternate coking cham-i bers and heating walls therefor arranged laterallyof each other in a row; pairs of regenerators situated below the bottoms of the coking chambers and heating walls, the two regenerators'of each pairof regenerators being on opposite sides of awall extending longitudinally of the oven, respectively; an extensionpassageway-;extending from each regenerator over the other regenera-= tor" of the same pair, each ofsaid heating walls comprising vertical heating flues, the vertical flues of each of said heatingwalls being communicably connected at their'topswith the tops' of others of the vertical'heating flues of said walls so as to provide two setsof vertical flues'operable for concurrent inflow combustion and outflow of waste gas in alternation with each other alongthe portions of the coking chambers on opposite sides of said division wall; each individual flue of one of the two sets thereof communicating with one regenerator of a pair and through an extension passageway with the other regenerator of the same pair, and each individual flue of the other of the two sets thereof communicating similarly with another of said pairs of regenerators also on opposite sides of the same said division wall. i f

2. A regenerative coke oven comprising, in co'm j bination: a series of alternate coking chambers and heating walls therefor arranged laterally, of each other in a row; pairs of regenerators situ-f ated below the bottoms of the coking chambers and heating walls, the two'r'egenerators of each pair of regenerators being onopposite sides of a wall extending longitudinally'of the oven,.res .1l

tively; an extension passagewayextending from I gas in alternation with each other,'there being parts of such flues along the portions of the coking chambers on opposite sides of said division wall; one flue of each of the aforesaid of communicating with a through an extension passageway with the other regenerator of the samepair, and the companion flue communicating similarly with a neighboring pair of regenerators also on opposite sides of the same said division wall.

3. A regenerative coke oven comprising, in combination: a series of bers and heating walls therefor arranged later ally of each other in a row; pairs of regenerators situated below the bottoms of the coking chambers and heating walls, the two regenerators of each pair of regenerators being on opposite sides of a wall extending longitudinally of the oven, respectively; an extension passageway extending from each regenerator over the other regenerator of' the same pair; each of said heating walls comprising combustion flues, the flues of each of said heating walls being communicably connected withthe flues in another of said heating walls by crossover conduits crossing over the intervening coking chambers so as to provide two sets of heating flues operable for concurrent inflow combustion and outflow of waste gas in alternation with each other along the portions of the coking chambers on opposite sides of said division wall; each flue of one of the two sets thereof communicatingwith a regenerator and through an extension passageway with the other regenerator of the same pair; and each flue of the other of the two sets thereof communicating similarly with another pair of said regenerators combustion also on opposite sides of the same said division wall.

4. A regenerative coke oven for heating with preheated air and weak gas comprising, in combination: a series of alternate coking chambers and heating walls therefor arranged laterally of each other in a row, each of said heating walls comprising combustion flues; regenerators disposed below the bottoms of the coking chambers and heating walls, said regenerators being operatively disposed in a row of pairs longitudinally of the oven, the two regenerators of each pair of regenerators being on opposite sides of a central wall extending longitudinally of the oven, respectively; each of said combustion flues being communicably connected with both of the regenerators of some one of the pairsofregenerators; one

regenerator of each pair being connected for preheating air and the other regenerator of the same pair being connected for preheating fuel gas simultaneously therewith for delivery to the same flue; and supply connections arranged to supply air and lean gas respectively to the two regenerators of a pair and for concurrently removing exhaust gases'from both of a neighboring pair of regenerators also on opposite sides of the same said division wall.

a 5. A regenerative coke oven for heating with preheated air and weak gas comprising,in combination: a series of alternate coking chambers and heating walls therefor arranged laterally of each other in a row, each of said heating walls comprising vertical flues in them; regenerators disposed below the bottoms of thecoking chambers and heating walls, and operatively disposed pairs thereregenerator and.

alternate coking chamin a row of pairs longitudinally of the oven, the two regenerators of each pair of regenerators being on oppositesides of a central wall extend ing longitudinally of the oven, respectively; passages from each regenerator communicating directly with heating flues in the half of a heating wall in the portion of the oven on the same side of said centralwall as the regenerator; an extension passageway of eachregenerator passing scissorwise the corresponding passage of the other regenerator of the same pair and lying above said other regenerator; passages from said extension passageway to the fluesin the half of a heating wall lying in the portion of the oven on the same side of said central wall as said other regenerator of the same pair; one regenerator of each pair being connected for preheating air and the other regenerator of the same pair being connected for preheating fuel gas simultaneously therewith for delivcry to the same combustion flues and supply connections arranged to supply air to one regenerator and gas to the other regenerator of the same pair and for concurrently removingexhaust gas from both of a neighboring pair of regenerators also on opposite sides of the same said division wall.

6. A regenerative coke oven comprising, in combination: a series of alternate coking chambers and heating walls therefor arranged laterally of 3 generator of the same pair being connected for preheating fuel gas simultaneously therewith for delivery to the same combustion flue of each of from the upper inner end connected for preheating air and the other rethe pairs of flues in both of two adjacent heating walls.

nected with each otherfor concurrent inflow combustion and outflow of waste gas in alternation with each other; pairs of regenerators situ- 7. A regenerative coke oven comprising in ated below the bottoms of the coking chambers and heating walls, the two regenerators of each pair of regenerators being on opposite sides of a wall extending longitudinally of the oven, respectively; and passages connecting both of a pair of regenerators to one flue of each of the pairs of flues in both of two adjacent heating walls; and other passages connecting the remaining flues in one of said walls to both of another pair of said'regenerators whichare also on opposite sides of the same said central division wall and which also communicate with one flue of each pair of flues in a third heating wall adjacent to said two adjacent heating walls.

FRIEDRICH TOTZEK. v