US1785760A - Coke retort with quenching device and method for same - Google Patents

Description

Dec. 23, 1930. J. BECKER v 1,785,760

COKE REI'ORT WITH QUENCHING DEVICE AND IETHOD FOR 5MB Filed Fe-b. 16, 1925 3Shqotg-Sheet 1 v j mmulmnmu 7 4 I Isl 711mm INVEN OR I M ATTORNEYS.

Dec. 23, 1930. J. BECKER 1,785,760

COKE RETOR'I WITH QUENCHING DEVICE AND METHOD FOR SAME Filed Feb.- 16, 1925 3 Sheets-Sheet 2 15% VENFQR. YW Ma w A TTORNEYS.

Dec. 23, 1930.; BECKER 1,

COKE] RETORT WITH'IQUENG HING DEVICE AND METHOD FOR SAME Filed Feb. 6, 1925 5 Sheets-Sheet 3 INVENTOR. %M Mr, M, MAW

A TIDRNEYS ments in the heat treating art and more par-g Patented Dec. 23', 1 930 U D S S PATENT orries aosnrn BECKER, or PITTSBURGH, rnNNsYLvANIAQAssIGnonTo HE xorrnnsoomnew, on PITTSBUBGH,,PENNSYLVANIA, A CORPORATION or PENNSYLVANIA 'ooKE nn'ronr WITH eunnonrno DEVICE AND METHOD son SAME Application filed February This invention relatesbroa'dly to improvei ticularly to means and methods for cooling the coke in vertical coking retorts with a liquld, such as water. i

I The methods ordinarlly employed in cooling coke in r-etortsby steam or water inher- 1 ently' result in the production of such large quantities of water gas as to reduce the resultant mixture of the rich distillation. gases and the leaner water gas much below the 13. t. u. value allowed by the authorities. I

propose to avoid the formation of such large quantities of water gas vby. effecting the requisite cooling by flooding the coke with water,

thus cooling it without formingsuch large quantities of steam as will react with the he'atediuel above to produce water gas of a volume to dilute the distillation gases beyond the degree desired, and my invention further contemplates removlng the portlon of water not converted into water gas n a manner to prevent itsabsorption by the coke in the discharge hopper or by the coke being dis-;

charged. 1 thereby avoid the soaking of the coke or imparting to it a high water content. By regulating the quantity of water 1ntroduced I can also produce a resultant gas mix-.

ture of the B. t. u. value desired. y 1 jAs a specific embodiment of my invention I preferably provide means for introducing a quenching liquid, such'as, water, into the 1 mass of hot coke in the region of the coke extractor mechanism, in the coke extractor magazine, in combination with a quenching liquiddefiector plate designed to collect the major portion of the spent liquid which drips through the coke afterquenching the same or through the extractor mechanism and to bypass the same past the coke in the magazine hopper, conveying it preferably to' a liquid seal valve at the bottom of thehopper from which it may overflow and pass ofi I without coming intcontact with the cooled coke which later is discharged from thehopper through the valve at its bottom in the Iii) usual manner.

I may further provide an outer end wall of the vby-pass passageway with portsor cleanou; holes which will permit the inspection 16, 1925. Serial No. 9,509.

be obvious to those skilled in the art that they are not limited to such use. i

. In the accompanying drawings forming part of this specification and showing for purposes of exemplification, a preferred form and manner, in which the invention may be embodied and practiced, but without limiting the claimed invention specifically to such illustrative instance or instances:

Figure 1 is a vertical section crosswise of the'battery showing the discharging mechanism partially in plan and partially in section.

Fig. 2 is a vertical section of the discharge device transversely of the battery on the line 2-2of Figure 3. r

Fig. 3 is a vertical section on the lines 3-3 ofFigs. 2 and 4. i

Fig. l is'a horizontal section on the line 4-4 of Fig. 3.

he samecharacters of reference designate the sameparts in each of the several figures.

In the illustrated embodiment of my invention there is showna coke extractor magazine 1 having substantially parallel sidesQ, 2 and ends 3, the latter com-prising lower portions 4 converging from a point substantially midway the magazine to the bottom to form hopper. The lower portion of the magazine may conveniently be made separate from the upper portion and may be attached thereto-in anysuitable manner. As shown in Fig. 2, .the magazine is offset below its top from the longitudinal axis of the battery and eating with the bottom of the; magazine hopper is a liquid seal valve casing 7 provided with inner substantially parallel coke guiding walls'8 in alignment at the upper I end with the sides 2, 2 and ends a of the extractor maga'zine hopper. The casingland guide walls are preferably inclined down.-

' wardly and oi'itvvardly. Pivoted to freely turn between the upper end of the walls 8" and the lower-end of the h'oppe'r'is a shelfor support 9 preferably arc-shaped in cross section which in clgsed position:supportsthe mass of coke thereabove, but which may be turned into the space between the lower inclined wall 8 and side of the valve casing 7. The coke guide walls 8 arespaced from the sides of the valve casing 7 to form a compartment therebetween, closed at its bottom, to permit the accumulation of the liquid 7 between I the two to" a depth determined by the overflow outlet 10, the liquidlever A A being maintained' at a height sufficient to effect an eiiicient'sealbetween'thei wall 8 and edges 11 of the cover 9 when'the latter is in closed posivquenchingthe coke, a liquid such as water may be introduced into the extractor magazine, forinstanc'd at the inlets '12 located 7 adjacent the'c'oke extractor roll In order to insuresutlicient liquid to maintain the seal at all times the inlet 10 is provided.

In the structure hereinbefore set forth as previously used the portion of the liquid introduced through the inlets 12 which was not converted into gas would drop by gravity through the extractor roll or past the sides of the same and in its further descent would normally be absorbed by the descending coke therebelow, imparting water content. 7

' My improvement contemplates means for to the latter a large preventing'this highly undesirable result.

This, I may accomplish by providing aliquid defiector plate 13 extending substantially vertically, in a plane parallel and in proximityto the side 2 of the magazine, its

upper portion being deflected away therefrom tobring its upper edge parallel toand adjacentthe line on which the coke fed downwardly by the extractor roll leaves the latter.

The lower end of the plate extends toa point approximately above the upper side wall 28 of the liquid seal valve. The deflector plate may be attached to theends 4 of the hopper in any convenient manner as by angle plates 14, It may be further stifiened or reinforced at intermediate points by angle plates 15. I lit is also preferably supported and spaced from the side 2 of'the hopper by bolts 16 provided with Spacer members 17.

At the upper edge of the deflector plate may be provided an angle plate 18 the outer end of which is directed downwardly at an angle from the extractor roll to constitute a stiffening means and an inner guide for thecoke fed downwardly by the roll, There may seal.

. instance,

also be pr ovided ports or clean outholes 19 x in one end 4 of the hopper. between the de-'- .flector plate 13'and the adjacent side 2 to permit the removalof the coke. breeze or other accumulationsf' The hopperis also prefera bly provided with a vent pipeQO; ln order to effect removal of any accumulation of coke" breeze or the like in the liquid seal valve casng the water outlet pipe 21.,mounted to turn about 'a' horizontal axis, 13, connected to the "b'otto i'rof the water seal compartment and normallyremains;in the upright position to maintain the seal but may be turned downwardlyijmomentarily to permit a sudden inrush of water from the inlet 10 through the compartment and down through the' outlet 21 to carryofi the accumulations therein; The outlet 'pipe 21 is thereupon immediately restored to upright position to preserve the 1 In the operation of my device, water, for is introduced through'the inlets 12 in sufficient quantity to quench the coke and limit the formation of stea'm to the quantity which will'react witli'the hot fuel'to form water-"gas sediment to mix'with the gases of distillation to produce a resultant 'having the desired 't. u. value. Tlie surplus water, as the colze is carried transversely by the roll from a point acent ti e side 2 to a point adjacent theside 2 will flow downwardly through the extractor teeth 5 and around the roll and will be all substantially entrapped in its downward passageby the upperend 18 of the deflector plate 13 and conducted through the passageway between the same and the adjacent side 2 ofthe 110137. per toftlie valve cover 9 bywliich it will be deflected into the space between the inner cokeguide wallsS and the outer sides of the valve chamber 7 to assist nmaintainingthe liquid seal, any excess flowing ed to the right until "its left edge is substantially 111 vertical alignment with the plate 13,

whereupon'the accumulated and coke breeze in thepassageway will be discharged throughthe valve outlet; The cover 9' is thenfur'ther rotated to therightto the posiv It is obvious that the separation of the water fromthe coke after the cooling operation is. facilitated bythe offsetting of the portion of through the overflow outlet-10. lVlien t is desired to discharge the coke the cover 9 is first rotated tlieh'opper carryingthe extractorroll from qthejpor'tion thereabove compellingtlie roll to 5 carry the coke substantially iliorizontally awayf-rom the wet zone to the further or dry side)? of the magazine whereit is, delivered in a=dry state through the passageway be- "twe'enzthe deflector plate 13 and side 2 01 the magazine. The removal of any accumulation in the Water ofltake passageway may be readily accomplished through the ports or clean-out openings 19."

n i ml 'lh'e'inventio-nas hereinabove set forth, or exemplified, may ibe'variously practiced or embodied within the scope of the claims hereinafter made;

l'nan apparatus for discharging coke ovens, in combination: an extractor maga zine having its upper portionsoiiset from its lower portion of the magazine that supports means pervious to the passage of the quench-' previouslyquenched coke and for maintaining the'separate'd spent liquid out of contact withthe previously quenched coke therein;

and means for discharging the spent liquid from themagazine' from the portion thereof that supports the "previously quenched coke. 72. In an'apparatusfi or discharging coke ovens, in combination: an extractor magazine in open communication with a coking chamher and adapted for substantially continuous extraction and discharge or iinished'colre therefrom liquid supply mea ns for subjecting extractedihot coke'in'sai'd magazine to he action of a'quenchingliquid therein;

ing liquid for feeding the quenched coke through said magazine and for eiiecting d1s charge of the sp'entliquid from quenched coke; means for collecting quenched coke in said magazine; and separating means forming a'chamber below said pervious means and in said magazine for collecting the discharged liquid in the portion 01" the magazine that collects the quenched coke and maintainin the collected liquid separatefrom and out or contact with the previously quenched coke after it leaves the pervious means. i

3. In an apparatus for discharging coke ovens, incombination; an extractor magazine in open communication with a coking chamber and adaptedfor substantially continuous extraction and discharge of finished coke therefrom liquid supply'means for subjecting extracted hot coke in said magazine to the action ofa cooling liquid whiletherein; means pervious to the cooling liquid for separating the spent liquid from thecoke cooled thereby; means in said magazine for accumulating coole'd coke from the pervious means; means iorming a chamber below said pervious means and in the portion of the magazine that contains accumulated cooled coke for collecting spent liquid from the pervious means and maintaining such liquid out of contact with previously cooled coke after such coke leaves the pervious means; and'means for delivering such liquid and the coke separately from the magazine.

4;. An apparatus for discharging coke ovens comprising, in. combination: an extractor magazine in open communication withacoking chamber and adapted for substantially continuous extraction anddischarge of finished coke therefrom; means for subjecting eXtra-ctedhot coke in said magazine to the action of a quenching liquid while therein; means pervious to the quenching liquid for feeding the quenched coke through said magazine and for effecting discharge of spent quenching liquid from the quenched coke; and separating means for receiving the discharged spent liquid and maintaining it separate from and out of contact with previouslyquenched coke in said magazine after it leaves the feeding means; and in whichthe separating means comprises a deflector plate dividing the magazine into two passage-- ways-one for the passage of coke and the other for the passage of the spent liquid, said plate being flared laterally at its top away from the liquid passagewayto substantially span the region of the feeding means; substantially as specified.

5. An apparatus for discharging coke ovens comprising, in combination: an extractor magazine in open communication with acoking chamber and adapted for substantially continuous extraction and discharge of finished coke therefrom; means for subjecting extracted ho tcoke in said magazine to the action ofa quenching liquid while therein; means pervious'to the quenching liquid for feeding the quenched coke through said magazine and for effecting discharge of spent quenching liquid from the quenched coke; and separating means for receiving the discharged spent liquid and maintaining it separate from and out of contact with previously quenched coke in said magazine after it leaves the ieedingmeans; and in which the separating means comprises a deflector plate dividing the magazine into two passagewaysone for the passage of coke and the other for the passage of the spent liquid;

said plate being provided at its upper edge feeding means and into said coke passage way;"substanti'allyras specified. v n

6. An ,apparatus. ;for discharging coke ovens comprising, in combination; an ex tractor magazine in open, communication with a cokinglchamber and adaptedfor substantially continuous extraction and discharge of finished coke therefrom means for subjecting extracted hot coke in said magazine to the action of a quenching'liquid while therein; means pervious to the passage of quenching liquid for dischargingspent quenching liquid from the coke during its passage in said magazine; and separating means within said magazine for maintaining the spent up liquid, afterthe quenching and spent liquid discharging operations, separate from-previously quenched. coke in said n1aga-.

zine; and in-which the separating 'means comprises a deflec'tor plate dividing the magazine into two passageways-one for the passage of cokeand the other for the passage of the spent medium; substantially as specified.

7. An apparatus for discharging coke ovens comprising, n combination: an ex tractor magazine in open communication with a coking chamber and adapted for substantially continuous extraction and dis-- charge of finished coke therefrom; means for subjecting extracted hot colrein said magazine totheaction of a quenching liquid while 1 V therein means pervious to the passa-geof quenching liquid for -.discharging spent quenching liquid from the coke during its passage in said magazine; and separating means within saidmagazine for maintaining the spent liquid, after the quenching and spent liquid discharging operations, separate from previously quenched coke in saidmagazine; and in which a water seal valve at the bottom of the extractor magazine is provided into the water sealing portion of which the spent liquid is'delivered, said valve being provided with means which 1n one position closes the main valve passageway against the pas- Y sage of coke and thespent liquid, while'permitting the. passage of the latter to the water seal portion of said valve, and which in a second position permits the passage of the coke; substantially as specified;

8. In an apparatus for discharging coke ovens, in combination: an extractor mag'ae 'zine; means for subjecting the hot coke therein to the action of a quenching liquid; means for separating the spent liquid, after the quenching operation, from the coke, said means comprising a liquid deflector plate substantially parallel to the sides of the eX-' tractor magazine and separating the latter into a coke passageway and a spent liquid passageway respectively; andports passing through the side ofthe magazine into the spent liquid passageway to permit the cleana 'ing of the latter ;'substantially as specified.

' i (r the 9. The method of cooling'coke extractor magazines in open communication with and adapted for substantially continuous dis-h charge of finished coke from coking chambers of vertical retorts, whichmethod comprises sub ecting the hot coke to thecoollng efiect of water in such quantity as will cool I the coke without the formation of steam beyond the amount which, when passed I through said vertical retorts,twoulddecrease the B. t. u. value of the resultant mixture of water gas from sa dsteam and the distorts below a predetermined value, and thereafter draining the spent water from the coke, accumulating the cooled coke 1n said magazines, and collecting. andaflowing off in said magazines the drained water separately from the accumulated coke to prevent the absorp tion of the former by the latter ;s,ubstantially asspecified.

10. The combination as defined byclaim 2, and .in which a water seal valve is pro vided at the bottom of the extractor magazine; and in which the separating meansis arranged so as to communicate with the water sealing-portion of said valve, to deliver spent liquid thereto, and so as to communicatewith the main valve passageway; said valve being provided with closure means having a plurahty of different operative posit ons'and.

adaptedto oper cate in one position to close .tillation gases from coking fuel in said rethe main valve passa eway against the pas sage of coke and the spent liquid, while effectii passage of the latter to the water seal portion of'said valve, and 'ada ted to operate in a second position to e ct the passage of the spent llqu d and accumulated SOllCl matter from said separating means through'the main valve passageway whilepreventing the passage of coke in said magazine that is separated from spent liquid in said magazine by said separating means, and adapted to operate in a third position to efiect the passage of coke in said magazine that is separated from the spent liquid in said ysaid Separating means; substantially as specified;

11. The combination as defined by claim 2, andin which a water seal valve is provided at the bottom of the extractor magazine and in which theseparating means is arranged so as to communicate with the water llu jportion of the spent liquid from the coke after the cooling operation, accumulating the cooled coke in said magazines, and flowing the drained liquid separately from the ac- ;cuinulated coke .to'prevent the absorption of the former by the latter; substantially as specified. y

7 In testimony whereof, I have hereunto set my hand. V

' I JOSEPH BECKER.

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