US1177429A - Metallurgical furnace. - Google Patents

Description

4 SHEETS-SHEU I.

Patented- Mar. 28, 19,16,

L, METESSER.

4 METALLURGICAL FURNACE.

` APPLICATION FILED MAR. 1915. 1,177,429:

L. METESSEB. METALLURGICL FURNACEI APPLICATION FILED MAR. Il, |915.

Patented Mar. 28,1916.

` N lll= lllll IQ@ @@x' L. METESSER.

METALLURGICAL FURNACE.

Arrucnlon FILED MAM?. m5.

Ptented Mar. 28, 1916.

4 skiers-snaar 4.

LEwIsuMErEssEn, oF NEWfon'nnnNs,y LoUxsIANA.

nm-ALLULGICAL rn'nimcn Specic'atlonvoi' Letters Patent.

Patented Mar. 28, 1916.

Application Med-Hatch 17, 1915.` Serial No. 15,013.

' citizen ofthe United States, residing at New i annealedgior otherwise` treated andto kilns fornodnlizingandvitrifyingpk l l Anf:impnrtnntl object of the invention;` is

to providerr improvedf apparatus for.z prefers` ably intermittently lfeedingw `predetern-ir'ieuf i itslyentire fwidth, nt desired vinteril'als,

A1' further object? of, the; invention is to provide un ,i improved gratef which? is `j1` wateri cooled, Aand Lwlich'fis so constructed tliat1 the disksy included r tleieinmay bef replaced whenwhrolen 1in n-lhigrlily convenient manner and linvthe `minimum time A1frtherfwjecufahe inv'enun .is mprofi 'videLa-n improved?, water-b'acklf11 adapted to ing the' watertojtlie 'lshafftsc v y* A'` furthery object-f2 of?,` the invention is@` tp provide imprqvedfmechnnism iforg operntiny or rotatingl thef 'gratemembers,4 which*` lsf' improve the. construction-lof :Ineens Vvfr rwith esired-'fpointremote? charactrgqwhichis designed and f 'constructed to v-admit of its` operation whereby 't ,various combinations ofgases ain-steam and other vapors,-fmay be `readily?, had for producing melting, puddling,

lprovein general" the? esisto .Figs-1,,andilokingin.thedirecuon n desired degrees of combustion, heat, and chemical mixtures, within the furnace, to perform the required Work, such as heating, converting, annealing, roasting, or carbonizingvthe metal or its alloy, in furnacesnndfnodulizing and vitrifyingin kilns A- further object of'` this invention is to providea furnace of the above mentioned charactenwhich is designed and constructed to .admit of its operation whereby the metals or materials being treated therein Will receive thergraduated or'maxiinum amount of heut -and chemical treatment from the i prod uctsof'combustion orhot gases, and the roof andk W'zillsvor` masonry of thel furnace sub-k jected to a uniform or even distribution of lieatwhereby the 4expansion of the' same is ely ized,"1iireventing=ithe roof ofsuch Walls ormasonry fromm undue cracking, falling I A-furtherobjectof'the invention is tof provide-a furnacey ofv the above `mentioned I character,r :which i is Iof simplified design sind construction to: enableits u operation by un-4 skilled lalaborancl wh-ich `,vv'illflast-a long time.

Aif-furtherfobjectvof the invention? is to imconstruction f -urnacesf of` this;- character, ,vvithly a view-c o increasing-their elicency -fof "operation Other objects Aand ndvnitages" oflthe invention v will f'be jay y es''criptig'ni-y In-wthelaccmpanyingdrawings .forming a lc'iztionf'and ',invwhich like numerals are?employed.I .tof'designate` like parte.throngl`iont`-1thev same; Figure l is a central Yvertlcnl longitudinal sectional View through :apparatulsenibodyin {1r-.my invention, Figi? :jan end, elevation, hxiif thereof being, sho in-{transversesection, taken on line Aparenti,during the. course elevetion'iof'fone ofthe rotatable grate.ni'ernfh-` 'i 9`5' tion,v Fig",` 4`is` a centralylongitndinal sec bers,"LT withthe Wateriba'ck in transverse scctional view through a plurality of the grate disks andthe tubular*shaftcarrying them, Fig. 5,is a side elevationof one of the grate disks, ig. G isan edge elevationvof the same,

shafts 33 `extend 17, and alternate tublllll SlllgfS 1.13"@

'introducing steam or. other shaft and the` end disk again returned upon the shaft and locked thereto.

v As above stated, the 'forward ends of the outwardly beyond the sn'iall. inner pnions 46 rigidly mounted thereon, which are engaged by the teeth of a raclobar 46', mounted .to hOIZOIllll lf ciprocate, and connected at one end with a piston 47, reciprocating in a cylinder i8, Any suitable means may be employed for fluid' pressure into theopp'osite ends of the cylinder to reciprocate the piston and rackbar,

I Wish it lui'ldeistood that.the invention is inno sense restricted to the use'of the cylinder and pion to reciprocate the' rack.- bar, asit may be accomplished by any other suitable'means Ri idlymounted upon each offthe tubular sha ts33 outwardly of` the smallk pinions 46V are large pinions 4 9, `in engagement with-each' other and consti.- tuting atrainoff` gears. .It is `obvious that the rotation imparted Sto the alternate tnbu.- larusha-fts` is transmitted rfto the large pin-` ions` 4 9, whereby lall Aofv the tubularA shafts 'age' Iliade` to simultaneously rotate. stroke of the .rack-bar-A is p The referably such in either` direction to turn the tubular shafts,

foragfcomplete revolution.y `larticular at- `tentio'nlis'calledlto theV fact that the grate membersin alternate pairs or couples rotate in opposite directions to cachV other.

The .alternatev pairs; also rotate in opposite directions, t'o wit, when the grate wmembers yin`\one .pain are. rotating, downwardly rd ucingacruslijing action, thegrate mem ers inthefadjacent alternate pairare rotating upwardly, producing anfagitating action. The inions 46 and 49 are` ooveredby. a guar `50, rigidly attached-to the plate 17, as shown. y

,ArrangedA above thetopl of the camionsl tion chamber 16 iand `extending transversely thereof forfits-entire Widtltis'fafhcpper 51,

having an outletV chute 52 eztending across the' combustionchan/iber entirewidth. :,)The--coalor like material is fed i; into the liopper-f-` and is intermittently fed `upon, the' grate iny the lcombustion chamber, by af rotary hollow feed valve 53,1 This. feed valve, as more clearly shown 1 in. Figs` 14a-nd 15,` ,is',formed1of a' section of .pipe or tube, havinggone' 4side thereof cut away. vatifi, such'cuta'way por y near and yspaced -fmthe ends of the valve providing. rings 55, the ends ofil which are.` closed fiby. heads; 5,6. Wheels 57 are rigidly .mounted within the rings 5S `having a The"` wheels 57 and 58 are rig- '1 idlyVrnounted 'upon' a horizontal rotatablev shaftvv59,ext ending outwardly beyond the ends of the rotatable valve. The rotatable laterally Fig.. 1:

for` substantially'its ion terminating vat points and ya. wheel.

portion thereof cut away 4 is rigdlymounted in thevalve 53between the ,end's thereof.

pleterevolution of the tubiigr valve from 'preferably consists of a sprocket wheel 61,

rlgidly secured theretov and driven by a sprocket chain (not shown) in turn receiving its rotation `from any suitable source of Den'er- The' ash removing apparatus, con1prises a .trough more clearly shownin Figs. l, 2, 11 and 12, whichiis arranged beneath the inclined bottoni 23 and having ifSzOP flush' therewith. This trough' is provided with .extending flanges .63, engaging the Alower side of the bottom. 23, as` shown in Rotatably mounted within the. trough 62 is a screw .conveyer 64, preferably formed of cast iron andpreferably made in sections 65, having. hubs 66, provided with openings' which are square in cross-section for receiving a. driving shaft; 67, also square in cross section. The ends ofthe shaft 67 areV cylindrical, to 'be journaled` in hanger bearings 67?, and this shaft may be supported 'in bearingsbetweenits ends', if de- 7 1, engagedby an endless conveyor: sprocket chain 72, engaging a sprocketwheel .73, having any. desired location, the direction in which itisdesiredto extend the 'conveyer 72, and operatein one o .the a'lpits 68 in proximity to the discharge end ofthe screw conveyor, for takingfupv the ashes fand'-` con.- ductingv` them to any pi es.69.

ing chamber 26'are horizontalskidpipes 7 5, which are laterally spaced l the. top and bottom of'the"chamber'26,lthe same being held elevated by tiles 76.v These pipes extend preferably 4 end wall of the casing tion with a source of water (not shown). These pipes serve to slidably support blooms depending upon de siredgpointfThese seal pits' 68f-are provided" with: overfow to vdischargelm the ashes. Buckets .74 are. carriedkb ithesgrocket chain.

Xtending longitudinally withintheheat`v 4 and spaced `from I orxmftal 785 whichare forced alon ythese skidpipes by any suitable' mearvs to l.- arged upon a cast iron chill A9,

' led bywater and supported by the bridge '11f 24. Connected with ythe down turned ds' SQ ofy vthe pipesj amy-couplings; 8 1, ha', ngconnectlonjvith pipes preferably a smaller diameter-,than 'the` lpipes '(5,j as

o io'irr' @mi of amener-'bwk 35, fer feeding ffufatertliereto, while'the 4Water"'may be fecl "pipes" '83', of 'smaller diameter.

^ tures'8 5discharging the Watendownwarolly ijs ,preferably permanently' partly filled 'with "Weten,

vnml."

, Inprder utilize the "heat contained tici). beforefthey discharge tothe stack atmosphere,' If arrange" airV heating pipes the chamber 28', such'pipes being ,of irf construction vv vheieby they have :range 'of adjust'a^bility v AS clearly hajgie'd, and provided at its endsj with I 7a ges" szbiqued or' eeuwige -rigidiyaa y hapd" inipes niayfallbe 'arrangedlhcniH zontally, or veiftically, o r some horigontally top-with horizontal inwardly' discha'rg '1 outlet .87`r Communicating with lthe tal. outlet 87. are txt ansvei'sely ar'glly, to deiect the preheated air rearwardly. "Thereare two .iotatio'u is imparted v'to feed valve feed valve by retating in the' e diswhich isshown."ffTheipes' 82 dischargedintopthe "thf the ltopf of the' water-back "ai-'fiyas e ipipes B8, discharging" into the lchainbenll `The tubularrods farefpro -fyid''d' near 1.their forvvjard ends 'with apenr ufliiclil co-inpletely subnierges the onyeyei and 4also .constitutes a v1water el v4the ili'szention or scopeofjthe ndothers vertically," andthey inayjbeitiugffchnnibei- 26', as shown. The" ends zontals rotatable l' g ,Which eects a1 continuous rotation yof the .i spiral or screwcnveyenieeding the'ashes @zo clonveyer7,72,v whereby "it isI cerried j from l.proximity toy ,th'efscrewLfconveyeigy by the buckets.,y v74'. The: water ris continuously fsupf 1 f plied into theyrateiback 35 'and circulates -75 y iorvivardly throughithe tubular. shafts 33,'

discharging Y through the. apertures 85,-v and 7 passing into the waterashpit 22, after cooling the grate members.I When itis desired.

to rotate the gratemembers'ffor shaking `8o :Hof the assatd PDOllS, turns the tubular. `|85 -shafts and disks carred'the'reby. 'l

It is to be. understooclithatthe formi-lof my linvention herewithshown and described lirs to-be taken as 'a' preferred examplepf the saine, and that various changeslilL-.theshape, 9 0 size,' fandarrangement, of: lparts may be ,resorted .to Withoutolepaitingfiom the'.

`joined claims.

` l. InfraE furnace of ranged-within the casing andjprovided 'near- 1 00 theinfforward ends with'water outletopen-A ings, a v hollow waterba'ck arranged Within the casing ja'lj acent. the .rear ends of fthe vtubular[grate shafts-and;upertured tore-1 `oeive themLfor-{supplying' water thereto, 135 means for supplying Water 6to 1 the hollow extending downirardly toward the center apertures l in theb ate --s nits, andumonveyer disposedheneathgthe upper.' surace 'oi ranged. jwithi @ubulrligrejgishaft www fuel thereto, an ashfpt arranged In 'testimony Wheeof: I affix myl signa- ?wxthm the casmg .beneath the disks and ture in presence of two witnesses. adaptedto receive mshes from the disks and waiergfrbm the'utlet apertures of the grate y LEWIS METESSER' 5 ,jihatsgyand a submerged conveyer operating 'Wtnessesz :,jgbhin. @le @sh-pit to lremqve ashes there- C. L. PARKER,

JAMES L. CRAWFOD.

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