US2769410A - Furnace construction, including portable wall panel - Google Patents

Description

Nov. 6, 1956 v R. E. OVER 2,769,410

FURNACE CONSTRUCTION, INCLUDING PORTABLE: WALL PANEL Filed Dec. 15, 1954 Z Z5 j jjj fz* Iy. gama/5I mean@ FURNACE CONSIRUCTN, lNCLUDlNG PORTABLE VIALE PANEL Raymond E. Over, Mok-ena, lll., assigner to H.

Detrick Company, Chicago, ill., a corporation of Delaware Application December 13, w54, Serial No. 474,8tl9

2 Claims. (Cl. lill-1) This invention relates to a portable furnace panel comprising refractory brick and associated supporting structure which may be prefabricated and installed as a unit in a new or old furnace wall or arch.

The portable panel of the invention is suitable for wall portions of an open hearth furnace such, for example, as a lintel over a charging door, a load bearing uptake wall support, or a pier between charging doors. lt also is suitable for other wall portions and for wall or arch portions of other types of furnaces, as will be seen.

Open hearth and other large, igh temperature furnaces .usually are operated continuously until some major com- One object of the invention is to provide a prefabricated f portable panel which quickly can be installed in a furnace mainly by means of mechanical equipment.

Another object is to provide a prefabricated portable lpanel which is suitable for use in new or old furnaces.

Suitable panel supporting means easily may be incorporated in the design of a new furnace and they readily may be applied to the existing superstructure of an old furnace. Another object is vto provide a panelfparticularly suitable for repairing certain short-iived portions of a furnace wall such, for example, as a lintel over a charging door or a pier between charging doors. These wall portions, as will be understood, are subject to deterioration from the physical acts involved in charging the furnace as well as from the destructive action of high temperature gases.

Another object is to provide a prefabricated portable panel which when installed has substantial load bearing characteristics so that it is capable of giving vertical support to a number of superpose-d rows of refractory brick. This feature of the panel is particularly valuable when the panel is used in the upper portion of a wall adjacent the marginal edge of a dat arch, as in the case of a lintel over a charging door in an open hearth furnace. In such application the portable panel supports several tiers of refractory brick which fill the space between the top of the refractory brick in the panel and the adjacent marginal edge of the flat arch.

Another object of the invention is to provide a simple, inexpensive brick retainer which cooperates to secure in position the refractory brick used in the panel.

Still another object is to provide a prefabricated portable panel which uses only a few simple component parts and which incorporates standard-shape refractory brick. The panel may be fabricated at a remote location or under desirable conditions at the furnace site and easily transported to the place of installation.

atent O "ice When 'subject portable panels-are installed as original equipment, subsequent replacement'when 'necessary'v is particularlysimple, although the design yis such that the panel is installed easily in existing furnaces. 'v'

Other objects, advantages and features of the inveiitln will be apparent as the descriptiony proceeds, reference being had to the accompanying'drawing wherein two forms of the invention are shown. It to be understood lthat the description and drawing are illustrative only 'andth'at the scope of the invention is to be measured bythe appended claims.

ln the drawing: y

Fig. 1 is a front elevational view of a portable furnace panel embodying the invention, the `'panelbe'ing' shown mounted with respect topa pair `of spaced furnacejcolpnns;

Fig. 2 is a Vtop plan view of the panel shown vin Fig. l, the view being taken on line 2-2 through the furnace columns; A v

Fig. 3 is an enlarged sectional view on line 3-"3Wof Fig. l, certain components being shown in dotteldline because they are located to the right of the section line;

Fig. 4 is a sectional view on line '4-4 of Fig. 3f;

Fig. 5 is a view, partly in section, of a modified vforni of panel illustrating application thereof to a furnace wall adjacent the marginal edge of a at arch, and' Fig. 6 is a perspective view of an element 'forming part of a brick retainer used in the panel. i Y I Referring now to Figs. land 2 of the drawing, 'the numerals 10 and 11 designate vertical columns in they steel superstructure which surrounds and supports the walls and arch of a furnace. A transverse panel-supporping member 12 extends horizontally between columnsdl'and 1,1, the ends of member 12 being welded or otherwise suitably secured to the columns. .A

A portable panel ls'embodying the invention comprises a mounting structure including a backing mea'r'ijs k1 6 'of predetermined size and shape; 4V.ln the form Vof thelin ntion shown, backing means" 16 is a metal'plat of ectangular shape, the plate being disposedvin ageeally verticalplane. A I

The mounting structure also includes a'parofw horizontally extending, vertically spaced upper' andjlo erjangle members 17 and 18, respectively. One lego ich' angle member is` secured as by Vriveli-ling tor-th front" face of backing means 16 while the other leg extends in a direction normal to the front face of backing means 16, as best shown in Fig. 3. In some applications upper angle member 17 may be eliminated, if desired.

The one or two angle members 17 and 18 each constitutes a forwardly extending flange on backing means 16. These flanges, as will be seen, function, in the case of angle member 1S, to provide vertical support for refractory brick contained in the panel and, in the case of angle member 17, to support both panel and superposed brick and to aid in supporting the panel.

vMeans Vare provided for supporting the panel in position in a furnace wall and, in the form illustrated, such means comprise a pair of spaced hook- like members 20 and 21, best shown in dotted lines in Fig. 3. Members 20 and 21 are mounted, as by welding, to the top of backing means 16 and to angle member 17 if the latter be provided. Transverse member 12, previously mentioned, is received Within hook recesses 22 to thus support the panel, backing means 16 of the panel lying flush against columns 10 and 11.

A lifting lug 25 having an aperture 26 may be provided at the top central portion of the mounting structure, as best shown in Fig. l.

The front face of the mounting structure carries a plurality of horizontally and vertically spaced brick retainers 28, each comprising an elongated member 30 (Fig. 6) having a transverse aperture 31 at one end. A rod 32 isimounted. symmetrically-in apertureSlas shown r4in.

'In thenform of the `invention shown,` a brick retainer 28 includes a threaded stud'133 secured at one end to the mounting structure.--In some ca 1ses. srt uds 33A are welded -jor- V'otheryr-1ises ecured to backing means and in` other cases to the legsof angle members. 17 and 18 which are connected to backingmeans 16, as shown in Fig; 3. VElon gated memberv 30 has an internally threaded axial bore 34. (Fig. '16) whchreceives .the threaded YendV of stud 33. lWithvthis arrangement brick retainer 28 is somewhat ad- `instable. in ordergto provide compensation for variation in-.the dimensions of brick associated'with the retainers.

.w'lhrceftiersor rows of Vrefractory brick are shown mountedinitheqillustrated'panel. The outside (upper and lower) rows are made up of brick 36 Vand 37 while the center oir/inside row made VupV of brick 3S. Y Brick 36, ,377, and 38 havev standard 'shapes including, Vin the case of Ybrick' 36fand; 37, relieved portions to accommodate 'theflangesror legs 'of angle members 17 and 18 and re- .cesses at. theV inner brick ends to accommodate brick retainers. As best shown in Fig. 4,'a lbrick retainer 28 is 'y received in; recesses 40 and 41 respectively Aprovided in v,each of an adjacent pair ofY brick. Retainers 28 are effective to jhold Vth'e-individual'brick in position in the panel. When a panelis fabricated at substantial distance from .the point of installation it usually is desirable to secure the bricks ytogether laterally by means of a steel band encircling theassembled brick. Such a band is shown in dotted'lin'e' at 42 inFig. 2. Y.

Referring to Fig. 5, a portable panel 45 is shown mount- 'ed in, a furnacewall adjacent the marginal edge of a flat -areh generally designated 46. Itis to be noted that mar-V Qginaledge 47,.Vof arch 46 is in general alignment with `ii1rler"faee,48 of panel.45 which in turn is in general aligr1n1er|tY with the'furnace Wall below the panel.V The lwallbelojw panelSV is shown in dotted outline in Fig. 5

and designated 50.k It is also Vto benoted that wall 50 has an upper terminationvsomewhat below the'plane of inner face 51' of arch'46; Y

Panel 45 is` disposed in the wall space between the upperV terminatinof wall 50 ,and the plane of inner face SMI of arch 46 as shown in Fig.V 5.' Backing means 53 of panel 45 extends somewhat above the top of the third brick row of panel 45l and is provided with hook members 54to`A engagea transverse member 12 extending between 'r'wall columns. g

The space between the top of the upper row of brick Vported by panel 45.

forming-part of panel- 45 and the marginal edge 47aoffarch 46 contains several rows of brick all of which are supshown in Fig. 5 as well as a layer of insulating material Y 56 and an expansion joint 57. Fig. 5 thus is illustrative of one of many possible applications for a portable panel constructed according tothe invention.

.From the above description it is thought that the construction and advantages of myrinvntion will be VAreadily apparent to those skilled inthe art. .Various changes in detail may be made without departing fromthe spiritor losing the advantages of the invention. i

Having thus described my inventiomwhat Iclaim as new and desire to secure by Letters Patent is; l

1. In a furnace having anV arch and a wall adjacent one marginal edge thereof, said archterminating in general alignment with the inner face of said Wall and said wall terminating below the plane of the inner face of said arch, the combination therewith of a portable wall panel disposed in part in the wall space between the top of said wall and said plane, said panel comprising mounting structure including backing means and a horizontal flange extending inwardly along the lower edge offsaid backing means, a plurality of horizontally and vertically v spaced brick'retainers mounted on the inner face of said mounting structure and vertically adjacent horizontal rows of refractory brick carried by said mounting structure and engaging said brick retainers, a row of said brick engaging said iange` vand being vertically Vsupported thereby.

2. The combination of claim l with the addition of vertically adjacent horizontalrows of brick supported. by

the upper brick row of said portable wall panel and lling the space between the upper 'brickrow of saidvwall panel and the marginal edge of said arch. Y

. ReferencesY Cited in the kfile of this' patent UNITED srAr'EsrAraNrs Y Morin Nov. 17,1'1891 Great Britain f Dec. 17,'119'31 Five rows of such brick are

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