y 1932. R. D FOLTZ l,858...489
FURNAGE CONSTRUCTON ort. This Space is lled With a C0Inpressible refractory Inaterial 20 Such as a Inixture of fire clay and asbest0s, t0 C10Se the j0int be Ween the Sections. The verticl faces 0f the )rojecting ) Ortions 17 and 18 are in abutment, S0 that they als0 Close the j0int While at the Same time a110wing upward movement 0f the refractories 18 incident t0 therInal eX- Pansion -vithout subjecting the refract0ries 17 0I' the brick supports 12 t0 3' resulting ressure. The refrac...tories in the respective courses are Placed in` latera1 abutlnent, S0 that L Continuous refractory c10sure is forn1ed, excepting vvllere desired 0Penings 1Ilay be provided lle anchoring 1I1en1bers 19 Ina... be susceptible 0f Sliding movenent 10I1git11di11a1ly of the vvall but are Inaintailled in their desired vertical 0Sition and are held against Shifting invvardly OI' 0ut-vardly lhe refract0ries Inay take any 0f vari0us f0rIns, certain variti0ns being shovvn in the drawings by way of examp1e If it is desired t0 )artly cover 0I shield L )Ortion 0f the areaa 0f the vl1 tubes, the refractories nlay be 0f sllch length as t0 extend betvveen the l1beS, their inner C0I'Iler )ortions being COIl cave S0 as t0 Conforln t0 the contour of the tubes and PerInit the lattel' t0 0ccupy a Portion Partly i11-set int0 the refrac#0ry vvall, as illl1strated in igS' 2 3Ild 3 and in the 11I)Per portion of Fig. 1. 0I the refractories may be 0f such length as to terminate in aa plane adjacent the tubes, as i11l1strated in the POI' tion of Fig 1 bracketed at N. ()r vvhere the center Spacing of the tubes exceeds the vvi(1th of the refrct0rieS, refract0ries having 0Ile corner portion concave Inay be used, s illustrate(1 in the lower ortion 0f ig. 1. The spacing 0f the tubes and the extent t0 Which it Iny be desirable to inset tllenl int0 the refract0ry Wall wm depend on the amount of heat tranferenCe desired fronl the furllape chanlber int0 the vteI' in the tubes and the tenlperature vvhich it is desired to 1IlaintliIlin the fllrIlace chanlber. It iS desirable, hovvever, that the vvidth of the refrCtOrieS corres ond t0 the Spacing of the tubes S0 that the vertical j0ints Of the wall will be behind the tubes, and thus shielded thereby.
It Tvill be )I)I'eciated that the tubes exercise a c00ling and Shielding, a'lld hence tem- PertureliIniting eifect on the azdjacent re fractories IIence the refract0ry vvall Iny be heat insulated externally, Ild this Inay be done by covering theIn externally vith lag ging Inaterial 21. ...Il 8ppr0priate external sheathjng may be formed of lates 22 Which re flanged at their I]lrgins and have tle lateral Hanges bolted to the Hanges ll and the horizontal f13nges bolted t0 the nleeting fianges ()f Superjacent nd SubjCent plt( Sections. In ig' 6 is shovvn a part vvall e]evation Tvith 0Ile of the p18te sections ren10ved. S there i1111strate(1, it iS desirable that the h0riz0ntl j0ints of the sheathing sgctions Coincide appr0xi1nately vith horiz0ntal j0ints 0fthesecti0na1vva11. ly relnoval of a sheathing late and the lagging 1Tlaterial -vhich it C0vers, access II18y be hd to aIly vval1 Secti011 fr0In the 0lltside Of the furn0e, f()I' replacenlent Of vvall refractories or CCeSS t0 the tubes. 1efraCt0ieS are eSily I(TI10ved and replaced in any Section by removing S0 many aS my be necessary 0f tlle uppermost course 0f ref1'actories 18 directly outvvardly. lhis Pernlits the subjacent refract0Ties t0 be lifted fr0m the anchoring melnbers 19 and I'eTr10ved 011tvardly, and the refractories Inay be replaced in the vvall Structure as readily, Such removals Ild replaceInent being Inade inthe selected Section vithout inv0lving re T10val of refractories fr0m any 0ther section.
It vvill be observed that by virtue 0f the construction described, the vvall refract0ries are defllitely nchOred against invvard dis` Placernent Such aS vvou1d subject the tubes t0 thrusts, the refractories being S0 maintained by virtue 0f the independent support of the vvall sections, the anchorage Of the refractories 16 and 17 by the members 19 and of fhe refractories 18 'by their abutment vvith the refractories 17- Additiona1 anc110rage of refraCt0 ieS 18 Inay be provided by nCh0ring irohs '24L as described in Iny T S. Ietters 1 atent TO. 1,747,82 for furnce Tvall con- Struction, certai11 0f the lefractories 18 in each course being free of such anchoring ir011s, however, t0 PerInit thir vvithdraTva1 directly outvardly. 1Tot only are the vvall refractories thus easily replaceable, but like vvise the anch0ring meInbers 19 and brick supports 12 ny of Which may be removed and replced entirely by 0Perations fronl the 0utside 0f the furnace.
In 1 ig. 7 iS illustrated a n10dified construction vvherein bar members 12' are bolted t0 the flanges of the members 10 and the webs of the channels 11 and Inay extend continu ously across a nuInber 0f the columns. Ille anchoring 1Tlen1bers 19' are cSt il'()Ii Inembers iike th0se reviously described, Tvith the exception tllat each iS additiona]ly forIne(1 vvith a bottoln shelf Portion 12 vvhich extends t0 a distance beyond the Inargins and innel' face 0f the flanges 19 and C0T1Stitutes a brick support. l`hese anchoring melnbers are connected t0 the Supportin;... Ie!nbers 12 by nleans qf the parts 19 and 19 as above described, S0 that they are Supported in an npright osition vith the helf portions 12 in generlly horizontal p0sition. vvall Sections are then built up as ab0ve described the refrct0rieS of the l0vermOSt (F()llrse 0f each Section being Supported on the shelf ortions 12 It vill be 0bserved that by virtue 0f the c0nstructions ab0ve described, a continuous Tefractory vvall Inay be r0vided in ass0ciation vvit 1`vva11 tubes, the refrct0ries and the tubes being nlaintained il a!1 as30ciati0n bers extend ve rtically and hve ainchoril1 engagement each with a pluralit of re 8(: tories said anchori11 members eing s ced from superjacent br1ck supports t0 Permit withdrawal of all of the refractories out- Wardly from res ective wal1sections fter removal of the i11sulating Inaterial.
In testimon Scribed m na y where0f hve hereunt0 subme.
