CA1169804A - Apparatus for receiving incandescent coke - Google Patents

Abstract

APPARATUS FOR RECEIVING INCANDESCENT COKE
Abstract of the Disclosure There is proposed an apparatus for receiving incandescent coke from a coking chamber and conveying it to a quenching tower which apparatus comprises a wall structure and lining plates secured thereto with the provision for their thermal expansion and defining jointly with a hopper the space for incandescent coke to be conveyed. The apparatus is adapted for installation on a carriage and removal therefrom to unload coke at the quenching site. The invention consists in that a spacing means in the form of a corrugated sheet is interposed between the wall struc-ture and the lining plates, the lining plates are joined with one another and with the wall structure with the aid of locking means each comprising a cover piece and a bolt with a nut, and between a round cross-section girdle of the hopper and bottom gates there is disposed a sealing means having a sealing surface contacting the surface of the girdle tangentially. Various modifications of the spacing means, locking means, and sealing means are presented.
The invention may be utilized in conveying incandescent coke mainly to a dry quenching tower. It cuts down the coke loss caused by burning and extends the service life of the apparatus owing to an improved thermal conditions of operation of the wall structure.

Description

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AP~'ARA'~US I~OR 'R:ECEIVING Il~l'CAl~DESCEi`T'r CO~

The present invention r@lates to -the processing equipment emplo~yed in the productlon o~ coke, and is sp~ci~ically concerned with an apparatus ~or receiving incande-scent coke f'rom a coking chamber ~nd -then transportin~
it to a quenchir~ si-teO The lnvention may be u-tilized -to the b'est advan-tage at -the coking plants where tho dry coke-qu~nchir~ -tcchniquc is us~d.
A-t cokir~ plants, incarl~escent coko is conv~yed from a coking chamber to a quenching si-te mainly in cars adapted to travel on a rail track (Teplitskij ~.G. ~t al.
Sukhoe tushenie koksa (Dry quenchir~ of coke)~ "Metal-lurgija", Moscow, 1971, p.53). Such cars comprise a car-riage arld an appara-tus for rcc~ivirlg incandesce~t coke, removably mou~-tod on the carriage, ~he appara-tus ~or receivir~ incandescent coko includes a wall structure which is a truss f'ram~work, and lir~ing pla-tes moun-tod on the supporti~ m~m~rs o~ th~ truss ~'ra~ work. Emplo~ed f'or linir~ the wall s-tructure are e:ither roll~d nick~
~erous s-teel plat~s or cast heat-resista~t iron plates.
The linir~ plates are installed wi-th th~ provision ~or -th~ir li~ar expansion, i.e. with a gap -to allow su~h an ~xpansion (~ostin ~.P., '~ichinskij A.P. Moder-nizacija vagonov dlja per~vozki raskalennogo koksa ustanovok sikhogo -tush~niaa ~Moderrlization o~ cars , ~

9~04 for conveying incandesoent coke at dr~-quenchi~r plants)~
"Koks i khimija~ 975, NO . 4 ~ p.~1). The above ap~ ra-tus Eor receivi~g incandescent cok~ also comprisos a hopper formed by -the lower por-tion o:~ -th~ wall structure, which hopper has a di~charge hole and is fram~d close to said hole by a girdl~. ~o close said discharge hole, the hopper is provided with bottom gates which in -the closed posi-tion abut against the girdle.
In prior art apparatus/ intensiv~ burning of coke takes place during its loading and transporta-tion, leading to a loss of coke and to a rapid heati~g of the lining pla-tes and wall struc-ture7 which resul-ts in a premature destruction of the la-tter. ~he burning is caused by an air draugh-t or inleakage -through -the gap~ b~tw~en the lining pla-te s .
In addi-tion, the gaps between the girdle sur~ace~
and the bot-tom ~ates abutting th~reagainst, occuring as a result of inadequate adjoining -th~r~o~ :Eurther wid~n in -the course oE s~rvic~ due to a -thermal deforma-tion oE
th~ girdle, which addi-tionally promotes -th~ air draught or inleakage through tho gaps~
~ he pres~nt invention has for its object -to provid~
an apparatus for receivi~g incandescen-t coke, wherein the ~6~

cck~ loss by burning i~ cu-t down and the ~rcatest possible protec-tion o~ the wall structure o~ -the appara-tus from the thermal effect of incandescent coke is orlsur~d by eliminating the gaps both between the ll~ing plates and in the zo~e of ~butment o~ the bot-tom gates -to the discharge hole.
~ his object is attained by the provision o~ an appa-ratus for receivin~ incandescen-t cok~ and conveyin~ the same from a coking chamb~r to a quenching site, compri~ing a wall structure which is lined with plates of a suitable material, installed so as to provide for -the linear expansion thereof, and forms wi-th its lower por-tion a hopper havi~g a di scharge hol~ and ~ramed adjacent to the discharge hole by a girdle, and bottom gates to close said discharge hole, wher~in, accordir~ to the invention, -the wall structure and the lining plat~s arc installed in a spac~d relationship -to defin~ a gap ther~-between, the lining plates ~re joined wi-th ono anoth~r and r~ith the wall s-truc-ture by lockin~ m0ans and spacing meansg the girdle -Ls round in cross-s~ction, and -the bottom gates are provided wi-th sealing means having a-t least one sealing surface disposed so th~-t9 with the bot-tom gates in the closed position, it co~-tac-ts said girdle tangerltially .

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SuGh an apparatus ~ables the coke loss by burning -to be cut dow~.owing to elimination of the gaps between the lini~g plates and in the zone o~ abutment o~` the bottom gates to the discharge hole, which is ~ttained by -using the loc~ir~ me~ns mainly ~lithin the ~pace d~a-ned by -the lining pla-tesy the æpacing means ou-tsidc said space, and -the seali~g means in -the zone o~ abu-t-ment of the bo-t-tom ga-te on the hopper girdle. Moreover, eliminatin~ the æaps and interposing the spaci~g members between the lining plat~s and the wall s-truc-ture improve the -th~rmal condi-tions of -the wall s-truc-ture in operation o~ the apparatus, ~thereby reducing -the thermal de~ormation and ~xtending the se:rvice li~e of -the structure.
Interposing a corrugated sheet as -the spacir~ member between -the lining plates and -the wall struc-ture promo-tes the heat transfer from the lining pla-tes, thereby ~nhan-cing their durability and addition~lly reducir~ -the hea-ting o~ the wall s-truc-ture.
~ or a better c~ec-t, the corrugat~d sh~ets are pre-~erably installed so that their ends overlap ~ach other, ~he spacin~ m~mber may also ha~e a trough-shaped cross--section; this may be, e.g , a ben-t shee~t or a rolled sec-tion .
The lininO plates may be also inætalled in a spaced ` 1~6~80~
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relationship so as to define a gap therebetween, and to prevent an air in leakage, each locking means pre-ferably includes a cover piece and a bolt holding the cover piece on the lining plates over the gap therebetween,passed between the adjacent lining plate~ and through the wall structure by a nut to prevent its axial displacement.
The spacing member and the locking means may be combined so that the spacing member is integral with the bolt and has an end face or a shoulder whereon a lining plate is supported.
In accordance with another embodiment of the invention, the lining plates may be installed in an over-lapping relationship, in this event~ every locking means preferably has the form of a hook secured to a lining plate to hold the latter in the re~uired position with respect to the wall structure.
In one aspect of the present invention there is provided an apparatus for receiving incandescent coke and conveying the same from a coking chamber to a quenching site, comprising a wall structure which is lined with plates of a suitable material, installed so as to provide for a linear expansion thereof, and which defines at its bottom portion a hopper having a discharge hole, a girdle extending sub- ~~
stantially circumferentially around the discharge hole, and bottom gates movable between an opened and closed position with respect to said discharge hole, characterized in that the wall structure and the lining plates are installed in a mutually spaced relationship to define a gap therebetween, the lining plates are joined with one another and with the wall structure by locking means and spacing members, the girdle being round in cross-section,and wherein the bottom gates are provided with sealing members which are fixed thereto for movement therewith, said sealing members having at least one sealing surface dis~osed so that, with the bottom gates in the closed position covering said discharge 1~6980~

-5a -hole, said at least one sealing surface contacts said girdle extending tangentially with respect thereto.
The exact nature of the invention will be clear from the following detailed description thereof with reference to the accompanying drawings which illustrate the invention by way of example, wherein:
Fig. 1 is a diagrammatic view of the appara-tus according to the invention, installed on a carriage, a part of the side wall structure and of the lining plates being not shown, ,~

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Fig o 2 is a plan view o~ ~e appara-tus illustrated in ~ig. 1;
Fig. 3 is a diagramma-tic view o~ the end wall ~truc~
ture o~ the appara-tus o~ th~ inven-tion~ showing the com-ponents o~ the bottom gat~;
~ ig. 4 is an enlarged horizon-tal sec-tional view of the angular ass~mbly o~ the wall structure and linin~
pla-tes;
Fig~ 5 is a vertical sectlonal view o~ the angular assembly o~ the wall struc-ture and lining plate,s, where~rom -the structure ex-tends to ~orm t~e hopper;
~ ig. 6 is a s~ctional view taken along the line VI~VI
in Fig. 1;
~ ig. 7 is a view similar to that illus-tra-ted in ~ig. 5, but r~presen-ting a~ al-tern~-tive modi~ica-tion o~ the spacing member;
~ ig. 8 is a view similar to -that illur~trat~d in ~ig. 6, but representing an al-terna-tive modl~ic~-tion o~
fas-tenir~ o~ the wall struc-ture arld lining pla-tes;
Fig. 9 is a view similar -to that illu~-trated in ~ig. 5, but represen-ting a still another modi~ication o~ ~asteni~g o~ the wall structure and lining pla-tes;
~ ig. 10 is a detailed diagrammatic view showirlg abutmen-t o~ -the bo-ttom gat~ against the hopper girdl~; and Figs. 11, 121 and 1~ are views similar to that il-lus-tr~ted in ~ig. 10, but representing ~urther embodiments o~ -the invention.
R2~erring to ~ig. 1, an appara-tus o~ -the present invention compris~s a wall s-tructure 1 lined with pla-tes 2 of a suitabl~ matcrial, such as a heat-resis~ant cas-t iron or heat-resistant s-teels. Such a wall struc-ture generally includes sido wall s-truct,ures 3 and end wall structures 4. Also, the wall struc-~lr~ 1 forms with its lower portion a hopper 5 having a dischar~e hole and framed adjacent -to -the discharge hole with a girdle 6, as will be best see~ in ~ig. 3. ~h~ hopper 5 is provided with bottom ga-tes 7 servi~g to close -the discharge hole when reguired. ~he wall structure 1 jointly wi-th the hopper portion ~e~ines a 5paCe for incandescent coke. ~ransportin~ -the coke from the coki~g chamb0:r to the quenchi~g si-te is provided in this illus-tr~tive example, by -th~-t the apparatus of thc inv~ntion i.s plac~d on a car-riag0 8 travelling on a rail track. ~he appara-tus is also equipped wi-th conventionR1 means for lifti~g the entire apparatus9 such as guiaes g and pull rods 10, and the wall s-tructure 2 ~lso de~ines a coke-receiving chut~ 11.
~o provide ~or the linear expansion under thc ther~l ~fec-t o~ incandescent coke, the plates 2 a.re installed with the provision ~or such expansion. ~he speci~ic examp-les of install~tion of the pla~es will be described he xeinaf ter.
In accordance with -the pr~sent invention, -the wall structure 1 a~d the linin~ plates 2 are ~oun-ted in a spaced rela-tionship to de~ine a gap therebetween, which is a-ttained with the use of spacin~ membe:rs, such as corru~
ga-ted sheets 12. As will be seen in Figs 1,2, 4-6, and 9 of the accomp~nyin~ drawing s ( in Flgs 3 and ~0 the spacing membe:rs are not shown for simplicit~
the corrugat0d sheets 12 are ln-terposed b~tween tho wall struc-t~r~ 1 and ~he lining plates 2, with the ends of the corruga ted sheets overlappin~ each o-ther. ~ 5s 'I, 2 , 4-7, and 9 show that the oorrugatecl shee ts 2 are inæ-~al-led in a spac0d rela-tionship to de~ine a ~ap there~e twe~n 7 in which oase it is expeclient to ~a~ten the linir~ plates

2 to the wall structur0 1 with the use o~ a locking me~s comprisir~ a cover piece 13 and a bolt 14 holdi~g -the cover piec~ 13 on -th~ lining platefi 2 over the gap there~
between~ As will be seen in the drawing~, a~d more speci-~ically in Fig. 6, -the bol-t 14 is passed be-twee~ the , adjacen-t Lining pla-tes 2 through the corruga-ted shee-t 12 and ~urther through the wall s-tructure 1. To pr~vent th~ bolt 14 -~rom an axial displac~me~t, the entire as-sembly is secured by a nut 15. This arran~ement makes -thus possible the Iinear expansion of the lining pla-tes 2, ensurin~ at the same time an adequ~t~ -tightness o~ -the join-t.
As shown in ~ig~ 3 and in ~reater detail in Fig. 10, thc girdle 6 of -the hopper 5 is o~ a rou~d cross-s~ction, In this embodiment of the inven-tion, -the girdle 6 is ~abrica-ted from ~ suitable -tubing, and the bo-ttom ga-tes 7 have thc convontional construction o~ w~ldmen-ts turnable around hinge pins 16 in hinges 17 secured to the wall s-truc-ture 1 adjacent to ~he discharge hole o~ -thc hopper 5.
It ~ll be apparen-t to those ~killed in the axt -that the bo-t-tom gates 7 are lln~d in ~he same manner as tho entire wall structure 1~ In accordanco with th~ inventive concept, the gates 7 are provided with sealing members 18 formed by horizon-tal panels 19 a~d an angle seo-tio~ 20 and haviDg a~ inclined sealin~ sur~ace A (Fig. 10) which, with -the bottom ~a-tes in the closed position~ con-tacts ~he sur~aa0 of t~le girdle 6 -tanOentially and a sealing sur~ace B which as well contacts the surface of the girdle 1~9~

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6 -ta~gentially. The soaling m~mbers 1~ are disposed above the level of the lining plates 2 o~ the bottom gates and guarded by the linin~ plates o~ the wall struc-ture 1, which ensures a more dependable closin~ o~ the gates 7 and isolation of the sealing members 18 from the -thermal ef~ect of incandescent cok~.
The bottom gates 7 are opera-ted with the aid of linking members 21 ~in~ed to -the bottom gates by means of hinge pins 22, the linking members 21 being, in ~heir -turn, hinge-connected to -the pull rods 10 for lifting the whole apparatus -to a qu~nching -tower. ~he bottom ga-tes 7 open after the apparatus has boen placed with its 9Up~
ports 23 on pedestals (no-t shown) of the ~uencLing towerO
In operation, the apparatus o~ the invention is lo~-ded with incandescent coke. ~he effect of heat causes the lining plates 2 to expand, but uncon-troll~d gaps remain -th~rebe-tween which gaps, however, exert no effect on the conditions of coke combus-~ion, i.e do no-t promote the latter, and hence the cok~ loss by burnin~ is cut down as against the prior ar-t. ~Ihe air dral~ht or inlea kage is prevented b~ th~ cover pieces 13s while a ~re~
linear thermal expansion of -tl~e lining plates 2 is ensur~d due to a non-rigid fa~tening of -the lini~g plates 2 by 9~0 ~

cover pieces 13 arld to -the provision of slo-ts 24 at ~he edges of plates 2 and o~ hol~s 25 in -the corruga-ted sheets 12. The corruga-ted sheet 12 prevents -the heat -transfer from incandescen-t coke -to the wall s-truGture 1 and also pro~otes the heat -transfer ~rom the lining -to -the ambient atmosphere, while the bot-tom ga-tes 7, owlng to the sealing members 18 abut-ti~g on the sur~aces of revolu-tion of the girdle 6, r~stric-t -the access of air into the hopper 5.
Whil~ -the preferred embodiment of th~ present inven-tion has-been shown and described, various modi~ica-tions may be made in the abovedescribed arr~ngement wi-thout departing ~rom the scope and spirit o~ the inv~ntion, as disclosed in -the ~ollowing examples.
The lining plates 2 a~ the corners o~ the appara-tus are fastened by means o~ ~-shaped cover pieoes 26 and of -the fla-t cover pices 1~ as shown in Fig. 4-~ while -the lining plates 2 in the tran~ititon~ o~ the wall struc-ture 1 -to -the hopper 5 are arr~ngcd so -that -their ~dges overlap each other, as shown in Fig. 50 It will be clear to those skilled in -the art th~-t such modi~ic~tions of the corner transi-tions may be mutually interchanged or -that either one o~ the modi~ications may be ~mployed -f`or both corner transitions.

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~ he :East~-ning o:f the wall s-tructure 1 and o~ ~hc lining plat~s 2 ma~ b~ accomplished wi-th -th~ use o:e a locking means comprising a 9pacing memb~r made integral wi-th the bolt 14 and h~ving an end f'ace or shoulder 27 whereon the lining plates 2 is supported, as shown in ~ig. 8. ~ similar bol-t, i~eO a member servi~g as bo-th a ~as-tener and a sp~cer9 ma~ be usod in the modi~ica-tion o~ the ~ast~nin~ shown in Fig. 6. Also, -the spacing member may -take the ~orm of a bushi~g put on the bolt 1L~; this modification is not shown in the drawings, inasmuch a~ i~
will be app~ren-t to those ski.lled in th~ ar-t in the ligh-t of -the above disclosure. ~e spacing memb~r may also have a trou~h-shaped cros~sec-tion, ~.g., such one as il-lustrated in Fig. 7 wh~re a rolled U sec-tio~ is shown.
It will b~ seen in this ~igure that a hea-t-resis-tant material, such as asbestos gaskets, may bo ~mployed in addition to ~h~ spaci~s member. Eve~ the ga~k~-ts proper o~ such material may be used a~ -the Cpacing rn~mbers.
Flg. 9 illu~trats~ a 9till alternative embodiment o~
the locking means, which is a hook 28 secur~d9 such as by w~lding3 ~o the lining plate 2 and holding -th~ plato in the preset position with respect -to the wall st~uc-ture 1, the lining plates 2 being installed in an o~erlapping relation3hip. In this rnodif`ication o-E -the ~astening, the prede termin@d gap betwe~n th~ wall structur~ 1 and thc lini~ pla-tes 2 i5 maintained with -the use of the spacing members in the form Oe the corrugated sheets 12, althou~h ~ny o-ther o~ the abo~edescribed and equivalent spacing me~bers may be i~s-talled withou-b contradic-ting the inverrtive concept.
'rhe sealin~ member in ~ccordance with th~ present invention may have ~ither one fla-t sealing surface (F~g~ 11), or one concave sealing surEace whose radius Oe curvature sornewhat exceeds -that of the surface of -the girdle 6 (Fig. 13), or a plurality of the sealing surEacesa such as three flat ones (~ig. 12), ~ll such sur~aces co~--tacti~g -the sur!eace ae -the girdle 6 tangentially~ I-t should also be noted that the covcr pieces 13 are pr~ferably ~ade of -the same material as the lining plat~s 2~

Claims (7)

The embodiments of the invention in which an exclusive property or privilege is claimed are defined as follows:-

1. An apparatus, for receiving incandescent coke and conveying the same from a coking chamber to a quenching site, comprising a wall structure which is lined with plates of a suitable material, installed so as to provide for a linear expansion thereof, and which defines at its bottom portion a hopper having a discharge hole, a girdle extending substantially circumferentially around the discharge hole, and bottom gates movable between an opened and closed position with respect to said discharge hole, characterized in that the wall structure and the lining plates are installed in a mutually spaced relationship to define a gap therebetween, the lining plates are joined with one another and with the wall structure by locking means and spacing members, the girdle being round in cross section, and wherein the bottom gates are provided with sealing members which are fixed thereto for movement therewith, said sealing members having at least one sealing surface disposed so that, with the bottom gates in the closed position covering said discharge hole, said at least one sealing surface contacts said girdle extending tangentially with respect thereto.

2. An apparatus in accordance with claim 1, characterized in that each spacing member is a corrugated sheet.

3. An apparatus in accordance with claim 2, characterized in that the ends of the corrugated sheets overlap at the joints thereof.

4. An apparatus in accordance with claim 1, characterized in that each spacing member is of a trough-shaped cross-section.

5. An apparatus in accordance with claim 1 characterized in that the lining plates are installed in a spaced relationship to define a gap therebetween and each locking means comprises a cover piece and a bolt holding said cover piece on the lining plates at the gap there-between, passed between the adjacent lining plates, and locked against axial displacement by a nut.

6. An apparatus in accordance with claim 5, characterized in that said locking means and spacing members are combined and comprise a bolt having an end face or a shoulder whereon a lining plate is supported.

7. An apparatus in accordance with claim 1, characterized in that each locking means is a hook secured to the lining plate and holding said plate in the preset position with respect to the wall structure, the lining plates being installed in an overlapping relationship.