US2603232A - Sheetsxsheet i - Google Patents

Description

y 15, 1952 R. P. KEAMMERER 2,603,232

BY-PRODUCT COKE OVEN STANDPIPE VALVE Filed June 25, 1948 2 SHEETSSHEET 1 Ell 3:1

INVENTOR. ROY P. KEAMMERER,

ATTORNEY y 1952 R. P. KEAMMERER 2,603,232

BY-PRODUCT COKE OVEN STANDPIPE VALVE Filed June 25, 1948 2 SHEETS-SHEET 2 l8 EL/43 Ella-+5 F Ill i m m INVENTOR. ROY F. KEAMMERER ATTORNEY Patented July 15, 1952 UNlTED STATES aeoaeazv BYLPRGDUCTCOKE ovE'N' STANDP'IPE: v VALVE Roy lltKe-ammerer, Gary, Ind., assig'lior to United States Steel Company, a corporation of New lersey -l Ap raiser-initiates, 1948Sial No. 35,102

I BClaiinsQ (014375-251) This invention relates to improvements.- iniby- ,product coke oven. standpipe valves.

' ,In by-product coke oven distillate from-coal in the oven chambers passes into standpipes and thence into a collector main. A standpipe valve is situated between each standpipe and the collector main and is closed while the oven is being charged orcoke pushed-from the oven. Tarry constituents in the distillate tend to condense around these valves and thus to gum them and interfere with their operation. To remove such condensate a solvent, commonly ammonia liquor, is sprayed continuously on the valves and is intended to wash the condensate into the collector main. An overflow is provided so. that liquor 'sprayed'while the, valve is closed passes around the valve. A sufficienthead of liquid must be maintained in the valve to maintain the; seal. against the operating vacuuinin the collector main. I V v Y Several designs of standpipe valves are now available, but those with which I am,.familiar have not beenfree'o-f gummingi .As aresult, they do not always close properly and they sometimes stick when an attempt is made to open them. In any event (opening or closing of, a valve that is. gummed is difilcult and requires excessiveforce. Occasionallyoverflows clog and cause the-liquor to back up. intostheovencchambers when the valve. isclosed. r

I'he principal object of the present invention is to provide improved standpipe'; valves less subject t ovgumming and thus being of easier and more certain operation-than previous valves with which I; am familiar. 7 Y

A further object of the invention-is to provide improvedistandpipevalves which when open furnish an unobstructed gas passage and in lvvl'nich-v thepartsare efficient-lycleaned by the liquor spray, but in which minor tardepositsdo not interfere with their operation. .A further object of the invention is: to provide improved standpipe, valves whichwhen closed furnish a constant level liquid'sea-l against: passage; of "gases. and which: have an overflow, not ik l ev A further object of the inventioniis to provide improvedstandpipe valves which: are readily accessible for inspection and manualcleaning whennecessary and in which the parts .are readily replaceable." V V L In accomplishing these and other objeots'of thecinvention; I have provided improved details of structure, a preferredform of which is shown in the accompanying drawings, which:

cFigu're leis aside elevational view; partly ih section,rshow'ing a by-product cokeoven standpipe and collector main having an improved valve embodying features of the present invention; i Figure 2 is a vertical sectional view takenlsubstantially on line 11-11 of Figure 1; and

Figure 3 is a horizontal sectional view taken substantially on' line III-'-III of Figure 2.- 'v

Referring-more in detail to. thedrawing'sgc I m Figure 1' there isshown at' lfl avstandpipe from: an ovenchamber of-a by-prod'uc't coke oven. andrati 'l 2' a collector main into whiclii distillate is discharged from thestandpipes of 'fa seriesof ovens. The standpipe has *the=-usual return bond 13- and removable "cover UL" The standpipeand collector main are ofconventional design and hence no more-:detailed ide scripti'on is deemed necessary. I I

'A valve l5 embodying features of the :present invention is interposed between the return bend of i the standpipe: and the collector main. The valve includes a body that preferably iscompos'e'd'of separable 'sections:- 16' and I]: for the seat and" dislere'spetiv'elyr The'.'sectional-:-construction of the body'facilitates ass'en1bly and dismantling-of the valve, as Well as' replacement of parts should this: become necessary; The-seat section *of the; body is situated ab'ove the -disk section "and is joined tothe extr 'eniity of t he -r-' turnbnd ofithe standpipe; through packing J 3. Sectiorfl T is joined to the ollector'main through T91" Tl'i'e' 'bodyl' et ane"wane [1 ers i c' n ii r ed se hee-ni l ef w trenlitie's whichv are j'oined; to the standp'ipend Ih'ai 3) rectangular portions of both-sections e a pm; of approxim 1y vertical end walls and oif approzginiatelly w en she; was; 7

walls, a-lip: 2?" at: lower: edge oil it ou er end wall an overfiow'da'm- 2' 3; spaced ruin the innenendw te'ri'or r m-e seat" sec ion into two passage s. The passageway" to the leftas viewed Figure 1 j is 'for coke-oven I distillate flowing" fronr'th'e,

' shaman-1 divides than;

ment.

lip and overflow dam constitute the valve seat. Flanges 20 and 2! are arcuate in side elevation, being constructed about a common center indicated at X (Figure 1). The seat section of the body also has a liquid seal baffle 25 that extends from the inner end wall, over the overflow dam and to a level below the upper edge of the latter.

A valve disk 26 of the gate type is mounted in disk section I! of the body on stub shafts 21 and 28 for pivotal movement on a horizontal axis. The top of the valve disk forms a closure plate which is arcuate in side elevation for en gagement with the valve seat. The arcuate plate is eccentric to the axis of pivoting; that is, the center about which the plate is constructed is offset inwardly toward the overflow dam from the axis of pivoting and, when the valve is fully closed, coincides with the center X about which flanges 20 and 2| are constructed. This eccentricity furnishes a wedging action for assisting in closing the valve. The valve disk does not scrape across the seat as it is moved,

but is pushed or wedged into engagement with the seat at the conclusion of its closing move- Shafts 2'! and 28 preferably do not extend across the valve opening so that they leave the opening unobstructed. An operating handle 29 is fixed to one of the shafts and preferably is counter-weighted at the opposite side of the. shaft as shown at 30. When the valve is closed, the counter-weight is to the left of the vertical center .line as viewed in Figure 1, and insures that the .valve does not gravitate from closed to open position. When the valv is opened, the counter-weight swings to the opposite side of the center line, where it does not tend to close the valve. The inner end wall of section I! has a stop 3| near its lower extremity against which valve disk 26 rests when the valve is open.

. The inner end wall of seat section It preferably contains relatively large poke holes 32 and 33 and smaller poke holes 34 and 35. The poke holes normally are closed by suitable plugs, but

when open furnish access to the interior of the valve. Thus the valve may be inspected readily and any tarry deposits cleaned.

The usual spraying nozzle 36 is situated in the reverse bend of the standpipe and during operation of the oven continuously directs a spray of liquid solvent, such asammonia liquor,

against the valve parts. When the valve is open, the spray efiiciently washes the seat and disk and passes directly through the valve opening into the main, where it is circulated in the usualfashion. When the valve is closed, the closure plate of the valve disk and the walls above the seat form a receptacle for retaining liquid from the spray. Liquid seal baffle 25 projectsbelow the liquid level in the receptacle and thus the liquid furnishes a seal against passage of-gases. Excess liquid overflows 1 across the top of the overflow dam, through overflow passage 24 and thence into the collector main.

From the foregoing description it is seen that I have provided a standpipe valve of simple construction and operation and in which the parts are readily accessible for inspection, cleaning or replacement. The valve parts are efflcently cleaned by the ammonia liquor spray. The eccentric movement of the valve disk with respect to the seat makes possible tight closing of the valve despite minor tar deposits and enables the valve to be opened without. sticking.

While I have shown and described only a single embodiment of the invention, it is apparent that modifications may arise. Therefore, I do not wish to be limited to the disclosure set forth but only by the scope of the appended claims.

I claim:

1. A standpipe valve for by-product coke ovens comprising a body adapted to be interposed between the extremity of a standpipe and a collector main and having side and end walls, a dam across said body adjacent but spaced from one of said end walls and dividing the interior of said body into a main passageway and an auxiliary passageway, arcuate flanges on the inside of said side walls across said main passageway, a valve seat having its seating surfaces formed on the other end wall, on said dam and on said arcuate flanges, an arcuate valve disk pivoted in said body and cooperable with said seat for closing said main passageway, said valve disk and the walls'and dam above said seat forming a receptacle for a liquid seal when the valve is closed, said auxiliary passageway furnishing an overflow from said receptacle, and a baffle joined to both side walls and the end wall which is adjacent said dam and extending over said auxiliary passageway and in spaced relation above said dam and downwardly into said receptacle and defining with said dam a passageway in communication with said auxiliary passageway, and thus completing the structure necessary for a liquid seal.

2. A standpipe valve for by-product coke ovens comprising a body adapted to be interposed between the extremity of a standpipe and a collector main and having side and end walls, a dam across said body adjacent but spaced from one of said end walls and dividing the interior of said body into a main passageway and an auxiliary passageway, arcuate flanges on the inside of said side walls across said main passageway, a valve seat in said body having its seating surfaces formed on the other end wall. on said dam and on said arcuate flanges. an arcuate valve disk pivoted in said body and cooperable with said seat for closing said main passageway, the arc of said disk being eccentric with respect to its axis of pivoting, said valve disk and the walls and dam above said seat forming a receptacle for a liquid seal when the valve is closed, said auxiliary passageway furnishing an overflow from said receptacle, and a bailie Joined to both side walls and the end wall which is adjacent said dam and extending over said auxiliary passageway and in spaced relation above said dam and downwardly into said receptacle and defining with said dam a passageway in communication with said auxiliary passageway, and thus completing the structure necessary for a liquid seal.

3. A standpipe valve for by-product coke ovens comprising a body of rectangular cross section adapted to be interposed between the extremity of a standpipe and a collector main and having side and end walls, a dam across said body adjacent but spaced from one of said end walls and dividing the interior of the body into a main passageway and an auxiliary passageway, arcuate flanges on the inside of said side walls across said main passageway and being constructed about a common center line, a valve seat in said body having its seating surfaces formed on the other end wall, on said dam and on said arcuate flanges, a valve disk piwatedi in said bodyand including fan Ia'rcnate closure plate 'cocperable wlth saidf seat for Z'closing said'inainpassageway; 'the 'center lineliab'out which said 'c'losure plate is "constructed being offset 'from the axis 'of ipivotingiand' when the "valve is closed coinciding with the centerflin'e said dazniandi extending over said auxiliary :passagewayand in sp'acedrelationjabovesaid dam and downwardly into said; receptacleyandrldefining withysaid' dama passageway inicfomrnunicationwithx said auxiliary passageway, and. thus completinggthe structure necessary for-a1 liquid seal. l. 4. A standpipe valve for lay-product coke ovens Comprising a body of rectangular cross section having separableseat and disk sections, said seat section being adapted to be joined to the extremity of a standpipe and-said disk section to a collector main, said "sections having side and end walls, a damacrosssaid seat section adjacent but spaced from one of its end walls and. dividing the interior of this section into a main passageway and an auxiliary 'pas sage-way, said disk section furnishing a passage way communicating with both the passageways i'n said seat section, arcuat'e flanges on themside of thefside walls of said seat section across the main passageway therein, a valve seat in said seat section having its seating surfaces formed on the other end walL'o'n said dam and on said arcuate flanges, an arcuate valve disk pivoted in said disk section and cooperable. with said seat for closing the main passageway in said seat section, the are of said valve disk be ing eccentric with respect to its axis of pivoting, said valve disk and the walls and dam above said seat forming a receptacle for a liquid seal when the valve is closed, the auxiliary passageway in said seat section furnishing an overflow from said receptacle, and a balile joined to both side walls of said seat section and the end wall which is adjacent said dam and extending over said auxiliary passageway and in spaced relation above said dam and downwardly into said receptacle and defining with said dam a passageway in communication with said auxiliary passageway, and thus completing necessary for a liquid seal.

5. A standpipe valve for, icy-product coke ovens comprising a body of rectangular cross section having separable seat and disk sections, said seat section being adapted to be joined to the extremity of a standpipe and said disk secticn to a collector main, said section having side and end walls, a dam across said seat section adjacent but spaced from one of its end walls and dividing the interior of this section into a main passageway and an auxiliary passageway, said disk section furnishing a passageway communicating with both the passageways in said seat section, arcuate flanges on the inside of the side walls of said seat section across the main passageway therein and being constructed about a common center line, a downwardly facing valve seat in said seat section having its seating surfaces formed on the other end wall, on said dam and on said arcuate flanges, a valve disk pivoted in said disk section and including an the structure the axis: r pivotingand when the valve is closed coinciding withflthefcenterf line about which said ar cuate flanges are co structed,- said closure plate-and the walls and claim above said seal; fiirming a receptacle-for a liquid'sealfwlien the valve is closed, the auxiliary passagewaylin 's'ai-d seat sectionffurnishing an overflow' froni said receptacle, and--a baffie joined to both side wallsof said seat section and the end wall which is adjacent said dam and extending oven-said auxiliary {passageway and in spaced relation above said dam and downwardly into-said IE,- cepta'cle and defining with said dama passageway in communication with 'said. auxiliarypassageway', and thuscompleting the structure 'necessaryforz'aliquid seal. I 1

ELLA. .standpipe .valve. .for .by producti coke ovensi comprising. a body of rectangular cross section'nadaptedxto be. interposed between the extremity of a standpipe and .a collector; main and having side and endwalls,a dam=:across said .bodyadjacent butspacedfromoneof said end walls and-dividing the interior-of said body into a main: passageway and antauxiliary passageway,,. at.lip across the other end walLarcuate flanges on the inside of saidside wallsacross said main-passageway and being constructed about ajicommon. center line, thelunderfaces. of said flanges, vof, said lip and of :saiddam cone stituting a valve seat, a valve disk pivoted in said body and including. an arcuate ciosureiplate cooperable with said-rseatyfor closing-said, main passageway, the center lineabout which said closure plateis' constructed being offsetfrom its axis; ofv pivoting and when theuvalve: is closed coinciding with the. center line about which said arcuate flanges are constructed, said closure plate and the walls and darn above said seat forming a receptacle for a liquid seal when the valve is closed, said auxiliary passageway furnishing an overflow from said receptacle, and a bafile joined to both side walls and the end wall which is adjacent said dam and extending over said auxiliary passageway and in spaced relation above said dam and downwardly into said receptacle and defining with said dam a passageway in communication with said auxiliary passageway, and thus completing the structure necessary for a liquid seal.

7. A standpipe valve for lay-product coke ovens comprising a body of rectangular cross section having separable seat and disk sections, said seat section being adapted to be joined to the extremity of a standpipe and said disk section to a collector main, said sections having side and end walls, a, dam across said seat sec-.

tion adjacent but spaced from one of its end walls and dividing the interior of this section into a main passageway and an auxiliary passageway, said disk section furnishing a passageway communicating with both the passageways in said seat section, a lip across the other end wall of said seat section, arcuate flanges on the inside of the side walls of said seat section across the main passageway therein and being constructed about a common center line, the underfaces of said flanges, of said lip and of said dam constituting a valve seat, a valve disk pivoted in said disk section and including an arcuate closure plate cooperable with said seat for closing the main passageway in said seat sec- 7 tion, the center line about which said closure plate is constructed being offset from its axis of pivoting and when the valve is closed coinciding with the center line about which said arcuate flanges are constructed, said closure plate and the walls and dam above said seat forming a receptacle for a liquid seal when the valve is closed, the auxiliary passageway in said seat section furnishing an overflow from said receptacle, and a baiile Joined to both side walls of said seat section and the end wall which is adJacent said dam and extending over said auxiliary passageway and in spaced relation above said dam and downwardly into said receptacle and defining with said dam a. passageway in communication with saidauxiliary passageway, and thus completing the structure necessary for a liquid seal.

8. A standpipe valve for by-product coke ovens comprising a body of rectangular cross section having separable seat and disk sections, said seat section being adapted to be joined to the extremity of a standpipe and said disk section to a collector main, said sections having side and end walls, a dam across said 'seat section adjacent but spaced from one of its end walls and dividing the interior of this section into a main passageway and an auxiliary passageway, said disk section furnishing a passageway communicating with both the passageways in said seat section, a lip across the other end wall of said seat section, downwardly facing arcuate flanges on the inside of the main side walls of said seat section across the passageway therein and being constructed about a common center line, the underfaces of said flanges, of said lip and of said dam constituting a valve seat, a valve disk, axially aligned stub shafts pivoting said valve disk in said disk section below said seat and leaving the passageway through said disk section unobstructed, operating means fixed to one of said stub shafts, said valve disk including an arcuate closure plate cooperable with said seat for closing the main passageway in said seat section, the center about which said closure flplate is constructed being offset from the axis of said stub shafts toward said dam, said closure plate and the walls and dam above said seat forming a receptacle for a liquid seal when the valve is closed, the auxiliary passageway in said seat section furnishing an overflow from said receptacle, and a baflle joined to both side walls of said seat section and the end wall which is adjacent said dam and extending over said auxiliary passageway and in spaced relation above said dam and downwardly into said receptacle and defining with said dam a passageway in communication with said auxiliary passageway, and thus completing the structure necessary for a liquid seal.

ROY P. KEAMIMERER.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 556,312 Gullman Mar. 10, 1896 955,600 Levey Apr. 19, 1910 1,444,767 McGee Feb. 6, 1923 1,460,587 Isley July 3, 1923 1,517,786 Kus Dec. 2, 1924 1,656,184 Enz Jan. 17, 1928 2,082,118 Potter June 1, 1937 FOREIGN PATENTS Number Country Date 29,045 Great Britain of 1911

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