US2369100A - Furnace wall - Google Patents

Description

Feb. 6, 1945.

w. G. YOUNG 2,369,100

FURNACE WALL Filed July 17 1945 3 Sheets Sheet 1 [7227672757 Zflz'ZZz'czm George yza y 7. Mad/Lan w. G. YOUNG v FURNACE WALL Feb. 6, 1945.

Filed July 17, 1945 3 Sheets-Sheet 2 wig Inge/2707) I 2 mm eOr Age: ozqz Q W W Patented, Feb. 6, 1945 1 I a FIJCE.

. FURNACE wanna William George Young; Oak Farsi Ill'.;,assinor tb Gh'ibago Fiiel Bri'cli'fC'ompany, chicagoylll at.

corporatloirornlinois I Application-anima 19434,.Sefi5L-No.49552235 serum-S; (or. 72401)- turezshomiimmgtIzwithicertaimofftheztilezbeingz Thmpresent: invention? relatesr'toifurnacezi wall? constructions r andi i's'vpanticularlyr directed: to: a; novel suspended' type'iof insulated wall-"construe tion' wherein flexibility ih-applicatiom ofitheq wail: to indu's'tria-l fumaces; powen'Boiiers; oill'st'ill'sianclf the likeis 1 obtain'edf- The furnaces walliconstruci mom-is: simplifie'dito am extent where 'it' is neces= sary t'o hav'e on1 yone shape of refractory tile fractory wall wherein the "refractory element's: themselves are" supported from verticar'st'eel columns spa'cedalongtlie' walP-by'mean'sof heat re sistant horizontal supporting members intercom nectingthe stee1= columns and heat resistant re tainingmembers. It isafeature of the'construc:

tionth'at the'retain'ing;memb'ersare free tomove horizontally and vertically as the installation isb'u-ilt up andtli'eyretain this freedom of' 'move ment sufli'cientiy in the-fii1al structure tO takecare of" expansion" and contraction in all di'rec tions. The retaining members functioir also to" provide supporting meansiforiinsulati'on" on the outsideof therefractory tile? as" well as @TbaJSiSTf for-securingafinishiiig coaton theoutsid'e'ofthe completed? insulation; The wall "liasfthe" advantage: of being: substantially" heat tight" with" a smooth'hardf exterior- 'surfaroe which is' weather; 7

proof I Theifeatures andiiadvant'ages .of'the'. invention-H wilf'appear" more fiill'yj from the following, de-

scription, reference; beiiigfmade; to the. accomr panying drawings wherein aapre frredifrmlofi' theinvention is. shown. It .sh'oulci ibe u derstood however that tlie drawingsfi and' descriptiomane.

iliustrativeionlyt and arenot to..-be;tak'en .as nine;

ir' 'githeinvention except insofar aseitisili'irriit'e'ci.lziy.v

the claims, I I

In the. drawingss,

Figs 1- is; a fragmentary, perspective view 7 with. parts broken: away, illustrating; the:wa1l;constr-uc tipmas viewed-from the: exterior the-wall :fromzthe-iinterion of: the; furnace;

' F afi'issamienlargedrseetionalwviewf takenesuby stantiallyionatheilineiiie-imf Eigzzl .r$8.14 iszacplaniview lookingidownion the:struc fi'edztile thatzriselused limit the: tops-layer: aria;

removedz. to illustrate?thewariousrretainingamam; hers;

portingabrackets; Y

Riga: fia issawznerspectlilee view of the'standam: tileszemployedi: throughout 1 most: 01?: the: furnace: wallfiand v Rig. Tiislatperspectiveiv lew ot thezslightly m'odi' tum-- naee wall?vv i i Referring: now in; detail tb the drawings; the presen fi mventiom issembotlied in -a .fiim'a'ce"wall?v may-be ofiany particular 1'en'gthtor height; desired; wherein the main supporting-1. structure;-

' comprises spaced vertiizalisteeficolumns' l01 Theses.

supporting columnszare r shaped*im cross section as=i1liistramec1 clearliy-iir Fig; 11' They are con; nectedtogether at verticallyspaced po iht'sby atplurality of horiaont'al supportih'gmembers H 920111551 tihgs are a1soproviddiwith spaced which are bbltedto the 'fl'anges'of the columns 1 HF by-ooitsindibatea'at l-ZZ I The horizont-al supportin'g memliers'are? desir-a: i my: made of iron eastings -"M? sufficient weight and strength saflytocarry a -seetion oft u mace-wall some=E3U- imeh'es im height; Each horizzontal in is provided with ribs l3, I4, 15 n lfiwlfich'gii'e' adfid' stren gtH-theretor" The 11 -1- horizontally? runhin'gjjS'10t"| 1 separated by vertical webs I83" The slbts'"I"|-'serve tdmouhtfindl i victim-supportingbrackets" lfthat'hear'against the ribs I-3 as' will be presentlyexpiainedg Each individual". supporting, bracket} rs'. has; a. flatshelf portion 20? with anjulit urnediflanga 2M. aiongoneiedg'e thereof. Therb'racket. extends;

upwardly andfiaway friom the? flat; shelff'portion 60 Fig; 2iis= a 'similar perspective:view-illustrating.

zpzwhere it? then ispmvideaiwitii ashoumenzi; for engagement with the rib l3iasillustratedliri Fi'gs. 2an'd'3. Ffom the shoulder 21 the support ing; bracket extends inwardly, and upwardly to aroundedfnecli portion 22- "andlisiadaptedr to tendljthrough onesoi, the. slots- I "I; An. elongated:

ti'on. 'Ilheli'orizontalwiiltliiof ithislhead-asshown:

fi n s is; Jusfi/suflicient to= pass througm the slotll T,-.and,thewertica1length oi the: head 51s.

greatenough .thatt-wheni the. supporting gbrack'et 1s turnediinrthe.positionsshowniitg willrpreventgthe neckiromscoming-izouteofi thezsiot Is'lt Thisasun-v portinglbracketz- I Srismreferably maderof a .casting:

of. aa suitable allowcanabler off withstanding; the: 1 ;temperaturesetozwhichiit; williibessubjecttinxthes;

operation of the furnace. For example, the alloy sold under the trade name of Meehanite is a satisfactory alloy for this purpose. The supporting bracket is strengthened by a rib 24 which extends diagonally upward from the edge of the surface 2!] to the neck 22.

A row of refractory tile 25 is supported on several of the supporting brackets as indicated in Fig. 2 and the supporting brackets are of such width at the shelf portion as to be slide down on the retainer member. Fig. 2 illustrates two of the anchor castings in place on the retainer member 36 and in engagement with the adjacent tile 25. Each anchor member will of course engage a plurality of tile due to the several lugs 4| thereon.

It is desirable to provide expansion joints between the several horizontal courses of the tile spaced from each other somewhat to allow for adjustment and for expansion under heat. The

tile is shown in perspective in Fig. 6. 'It is pro-f vided with a groove 26 in its lower surface to receive the flanges 20a of the'brackets"l9. The lowerend of the tile is sloped forwardly from the groove 26 as shown at 21 and that portion of the lower end of the tile 28 which is adaptedat the pointof support by the supporting brackets 19. Such an expansion joint-is shown at 45 in. Figs. 2 and 8. The expansion material fills the space between the separately supported sec- :tions' of the wall and in addition fills the recesses 32 in the top, course of each individual supported section. The joint which is filled with the Jexpansionmaterial extends downwardly from the fire exposed face to the recesses 32 and then of course the back part .of the tile sections exto rest on the shelf 20 is above the portion v2'! 50 downwardly, toward the rear as shown in Fig; 6.

A groove 32 is cut in the top of the tile at the rear edge'of the sloping SUTfaOB'BI, andazportion 33 of the tile rearwardly, of the groove32 extends'up abovethe level of the surfac 3| as shown to provide a vertical shoulder-34' for em gaging an'anchor casting35. g

In a normal construction the tile are supported in about three layers, one upon the other,

by eachrow of the supporting brackets I9. The number of layers of course maybe varied but it has been found that. this proportion is proper for the load to be carried. In order that the tends upwardly above that portion of the expansion joint which lie inwardly of the recesses. The net result of thiscon'struction is that the material .used in theexpansionjoint is trapped inplace and cannot work out under the continuous. expansion 7 and contraction of the wall. Where expansion joints'run horizontallyfrom the fire exposed face to the outerwall the material which fills the expansion .joint is made to work inwardly to the fire exposed face and eventually all of it is lost. 7, With the'present invention that difliculty is avoided since the slope of the expansion joint causes the material to tend to work-away from the-fire exposed face and the vertical offset back of the recess 42 prevents the material from working outat theback of the wall. Expansion joints are al so provided at the ends of a wall where the wall joins and overlaps with an adjacent wall meeting it at an angle. If the length of a walLi sufficient to justify it vertically running expansion jointsmay be provided in accordance with established practice.

The topcourse of tilemust 'usuallybe held back in a different fashion than the main wall secthree horizontal courses may be tied back at the Y topand bottom the anchorcastings 35 are pro- "vided and they'in turn are tied back to the hori-' zontal members H by-cvertical retainer members v The vertical retainer members are substantially.

H sha'ped in cross section asillustrated best'in Fig. 4. At the top'and bottom ends of these,

members transverse webs 31 are provided and the longitudinal webs are cut out so as to provide.

recesses that will engage upon the'upper and loweredges of two adjacent horizontal members I! in the manner shown in Fig. 2. The retainer members 36 are castings of iron and theyare free to slide horizontally along the Space between two vertically adjacent horizontal members I I. Each of the'castings 3B is 'notched a's indicated at 38' topermit mounting "of the anchor'castings 35 thereon. Q

' The anchor castingfl35 (seeFig. 5) comprises a horizontally extending body portion 39 which is divided into a plurality of prongs 40 extending forwardly. Each of thes prongs has upwardly and'downwardly' extending lugs 4| on. its free ends, which lugs are adapted to engage in the recesses 26 and 32 of two vertically adjacent tile At the rear edges the anchor castings 35 are flanged as indicated at 42 and cut away as indicated at 43. The flanges 42 ar separatedby a slot M that is -wide' enough to permit the anchor castingto: be pushed through the notch 38 .on .theretainermember 36 after which it can tion. For this purpose a special tile dfi-isprovided (see Fig. 7). This tile is precisely like the tile 25 except that it isprovided with a flat top 41 and with, two channels and 49 extending downwardly from the top surface along the side edges thereof for abouthalf the depth of the tile. These channelsja're.verti cally in line with a bottom groove 50 that corresponds to the groove .26 in, the tile 25. The .portion of the .tile rear wardly of the channels 48 and ds'l'is reduced in width somewhat so as. toaccommodate thethickness of a tie-back'castin'g 5l,( 'see Fig. 2) This tie-back casting has a'lug 52 projecting laterally at it inner end so as to engage two adjacent tile 46, and. at its rear endithe tie-back'casting has two spaced depending flanges 53 and .54" adapted to receive the upper edge 'of 'thetop horizontal member ll The furnace wall is insulated by inserting rectangular blocks 55 ,of vinsulation between the 1 rear faces ofj'the tile 25 and 4 6 and thQVBIfiCaIL retaining members 36. Theseblocks of insular tion are cut to the same vertical depthsubstantially as the tile so as to fit between two vertically' adj acent' anchor cas'tings'3'5 in the-manner shown in Fig. 1. The anchor castings andth'e retaining members thus serve not only to retain the tile but alsoto retain the insulation in place as'well. The insulation actually extends down wardly to cover the inner faces of the horizontal members ll except where the brackets l9 are interposed. Since the insu'lation -is usually-soft asecgroe itt'danrfbe-ifibrcedtl'downwardlybto causes themeirle. forcing flanges: uctoacutt into; it or it. mayrbe; nctchedi'tn' receive these; flanges: if. desired...

' "'Wheni'theiinsulation is inzplacei'eand-the wall;

includingg.the;.-ti1e;' has been? installed; a hard finish;.outer layer 56:. may beJ-applied. OVBI'l'theE frameworkziand againstfi the: insulation: as. illus trated inzffigssll andziir. 'I'hishard.surface-layer.

may 'b'e: oft." any" suitable plasticfimaterial that' sulated wall construction has been providedwherein the advantages of a flexible refractory suspended wall are obtained with a simple construction that also provides adequate support and mounting for insulation and an outer wall.

Having thus described my invention, what I claim as new and desire to secure by Letters Patent is:

1. In a sectionally supported furnace wall, a framework including vertically spaced horizontal supporting members, shelf brackets hung thereon in slightly spaced relation and movable horizontally along the supporting members a limited amount, retaining members extending between vertically adjacent supporting members and slidably engaged therewith along horizontal lines spaced from the horizontal lines along which the brackets engage said members whereby they may move lengthwise of the supporting members without striking the shelf brackets, anchor members slidable vertically on said retaining members, each of said anchor members having upwardly and downwardly directed, tile anchoring, lugs, and refractory tile havingtop and bottom grooves whereby to receive the lugs of an anchor member between vertically adjacent tile, the tile having the portion forwardly of the grooves offset downwardly with respect to the portion rearwardly of said grooves.

2. In a sectionally supported furnace wall, a framework including vertically spaced horizontal supporting members, shelf brackets hung thereon in slightly spaced relation and movable horizontally along the supporting members a limited amount, retaining members extending between vertically adjacent supporting members and slidably engaged therewith along horizontal lines spaced from the horizontal lines along which the brackets engage said members whereby they may move lengthwise of the supporting members without striking the shelf brackets, anchor members slidable vertically on said retaining members-each of said anchor members having upwardly and downwardly dihaving top and bottom grooves whereby to receive the lugs of an anchor member between vertically adjacent tile, the tile having the portion forwardly of the grooves offset downwardly with respect to the portion rearwardly of said grooves and said tile having a part of the downwardly offset portion also offset laterally whereby all tile are vertically and horizontally overlapped.

3. In a sectionally supported furnace wall, a framework including vertically spaced horizontal supporting members, shelf brackets hung tilea'anchorihgg. lugs-,5, refractory; tiles; havingitop andrbottomi gI'OOVGSSWhGI'Eby ItOE receive the; lugs ofa a'nzanchor: member? between vertically-s ad:.-

j.acent ;,.tile, and insulating blocks; fitting: in; the: space" between: said: refractory tile: andzsaidl re':-.- taining members and carried by said brackets and anchor members. 7

4. In a sectionally supported wall for furnaces, horizontal rows of refractory tile having anchoring grooves extending across the top and bottom faces thereof with the facing grooves of vertically adjacent tile in substantial alignment, the tile having the portions thereof on one side of the grooves offset vertically with respect to the portions on the other side of the grooves.

5. In a sectionally supported wall for furnaces, horizontal rows of refractory tile having anchoring grooves extending across the top and bottom faces thereof with the facing grooves of vertically adjacent tile in substantial alignment,

the tile having the portions thereof on one side;

of the grooves offset vertically with, respect to the portions on the other side of said grooves,

the portions on one side of said grooves having having the portions thereof on one side of the grooves offset vertically with respect to the portions on the other side of said grooves, the portions on one side of said grooves having top and bottom faces sloping upward from the grooves and said last named portion having a part offset laterally whereby to longitudinally overlap the .tile in a row.

7. In a sectionally supported furnace wall, a

framework including vertically spaced horizontal supporting members, shelf brackets hung thereon in slightly spaced relation and movable horizontally along the supporting members a limited amount, retaining members extending between vertically adjacent supporting members and slidably engaged therewith along horizontal lines' spaced from the horizontal lines along which the brackets engage said members, whereby they may 00 rected, tile anchoring, lugs, and refractory tile thereon in slightly spaced relation and movand downwardly directed, tile anchoring, lugs,

and refractory tile havingtop and bottom grooves whereby to receive the lugs of an anchor member between vertically adjacent tile.

8. In a sectionally supported furnace wall, ,a"

framework including vertically spaced horizontal supporting members, shelf brackets hung thereon in slightly spaced relation and movable horizontally along the supporting members 'a limited amount, retaining members extending between vertically adjacent supporting members and slidably engaged therewith whereby they may move; lengthwise of the supporting members, anchor.

members slidable vertically on said retaining members, each of said anchor members having azlimitedtamdunta retainingrmeniberseextendina' betweenrverticallyraidjacentrsupporting members upwardlyand downwardly directed, tile anchor- V ing, lugs, and refractory tile having top and botadjacent tile in substantial alignment, the tile havingithe portions thereof on one side of 'the grooves-offset vertically with respect to the portions on the other side of said grooves, the portions on one side of said grooves having top and bottom faces sloping upward from the grooves,

and expansion material between certain rows of refractory tile, the expansion materialbeing trapped in place by the upwardly sloping portions of. the tile on one side of the grooves and'the vertical ofiset on the other side thereof.

' WILLIAM GEORGE YOUNG.

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