US930259A - Sintering-machine. - Google Patents

Description

Ai B. YOUNG.

SINTERING, MACHINE.

APPLIOATIOLT FILED AUG.19, 1908.

930,259. Patented Aug. 3, 19%.

SHEETS-SHEET 1.

Q WITNESSES 3- INVENTOH A Y TOHNEYS Patented Aug. 3, 1909.

4 SHEETS-SHEET 2.

INVENTOR E S S M W W fluwurs 5. You/v6,

A TTOHNE YS A. B. YOUNG. SINTERING MACHINE.

APPLICATION FILED AU .19, 1908.

Patented Aug. 3, 1909.

4 SHEETS-SHEET 3 INVENTOH flLFfltij B. Val/N6,

ATTORNEYS A.. B. YOUNG. SIHTERIHG HAOHINE. Lrrmonm! rum 411mm, 1908.

930,259 a Patented Aug. 3, 1909.

4 SHEETS-SHEET 4.

WITNESSES INVENT0R1 ATTORNEYS citizen of the United:States,an l-a resident v I of Salt Lake-( ityint he county; f;Salt Lake: ber The supports 3 and 4; carry; a'ttheir upl per: ends a suction ornw iudlboggi '6, fiyhiph has and State of lltatmhave made: contains-new and useful Improvements in sihteiing-ltlay 'hines, of which! the following ista 'speoificav My 'in'ventiohl relates to s'intering; d V and an ore )artleularly. toa-t' hoa smtemng 11.87,

'thei treatment "the process 0f reduotion;

1 5 An object of :myginvention is to. provide; a t device in'whieh the finelydivided orema-y be brought into? oonglomefate massbyfa sin 'teringflpmcess 'and then mayi be del iYered,

' Yide'a sinter'ing machn Y fret-131mm the machine in :blocks' of co'nvem:

furnace;

ien't size for subsequent treatment inra/blasti fvide' a deyiee in which thel-e'is areo'ntinuous'; "movement of' the slnterlng grateu thevlattel being-learned onanendl'ess 11am arranged topass overtwosprokets some distances. art,-

maserialw w t A, v '1 Ai furtherobjectofmyinvntioaisto pro- 1'e of'largegrate ca 7 pacity, which takes" up *c'omparatively-little "w t a QSmaH'vertib-ial heightw ,j Qther obj cts will appear the following specification and will be particularly pointed y invention-is illustrated in the coom- .Figure lshows' "a side view partly in sec- View of the' 'tio'ri of 'thesiatering machine. 'FigLZ-shoWs RI G- ACHIN wlatterbe' 211 section of thejtraveliiig a-Wrticitl section: through" .e @116 b iiilia i fi w P supports 2 3, 4 and '5, aire itglediop" each sideof thehaachihe in S yIllni MjiQ al 1 e- 'lation. :These su )ports are p refeljably of angle lron's, althoug 1 they may conslstofl 151ma bgottom made ,of oppositei elmed,v secb ;t zsl ar ye qivnint be .v the vl w r. jull m s 1 th eIv vices;;-

gate d.lhand-holes.t

xc e n a t t e w ba l h f and 5mm; t theilllu eer e'ds i d? extend tinia ,110ri QDt' ;diroti9i}=h two Pportspand are-inclined downwardly at a'short distanee beyo mad-bow "a me supports 9 and 10, ateach-efid as; the uiaehine,

these. supports being "desig iied to carry the sprockets 11;.an (l 1'21at; their ilpj ix 'a y,lends the mo nted fpr i e wn-in bea n oftheusua foim.

.mlnworder tmstiffen; thflj machine-so that .there will ib eino possibility of, yielding under :the'str-ain'ofa: load, P I YiHefihe emsshraces 2.13% and Mpextending transyerse ly,between :theisupports 2 and betweefi thesupports 5,

orbs? t0 thebearingsuppoxt 9 me 1; res I etively, at [one end fandlthelinclinedbmoes 15 and 1 5',"[e 1 ;tending :from: the sup and th bed ofithetliachine, andsimi ar t ransverse braees 17 and 18- at the other end of the maehine.

* 'Arran' ed, to move-along the mills ,8, and eieby, is ans-endlessvgrateebmgosed tiou of'this grateis shownoint Fig. 5;

1mm be seen that the'bottom perttoaqf ithe grateconsistsof bars 19, having a herrmgbone arrangement, These grate bars are supportedifby means ofi a seriesrof rods 20,

which extend transversely of the ,railS, and

which are'adapted toridethereonu; The rods 20 are armnged to connect rigidly with the links 21* o'f theehain ZZQflVhiChfihQI'BbY forms a supporting memberfonthe grate sections.

This chain, whichis; lobpecL-arouhd; the c wo end sprockets 511 and 12,; constitutes an endle'ss cairien Each individual "gvate; section isprovided withalatemllyeexteodinggrod 20 at-eachemlthereofai 2 w, a 51 win i In orderta provide molds foe thematerial deposited: 'upozi the grates, I arrangeyyertical Q *glates -23 at equal intervals, shown: in the sawing as upon each 1 third section; and a sem s; of vertical: plates 24 a loug the toys of the end pieces 25,

tlmough the ignitinglhox and the grate sections, thereby providing a series of rectilinear molds, each composed of a pinrality of movable grate sections. At the opposite ends of the grate sections I provide these end pieces being higher than the dividing plates 23, as clearly shown in Fig. ,1. hen the grate sections are traveling along on the rail, the edges of the vertical plates 25 and 24 are together, the former constituting continuous side members, and the latter constituting a central dividing member, as clearly shown in Fig. 2..

In Fig. l l have shown-a diagrammatic View of an igniting furnace. The latterl have designated in general by 26. .lhe furnace is provided with the usual ash-pit and combustion chamber. and is of the reverbera-' tory type. The products of combustion are caused to pass by the lateral pipes 27 and 28 to an igniting box '2), which is arranged in close proximity to the tops of the vertical plates 23. Secured to the igniting box is a plow 30 for leveling oil the ore which is dcposited by the distributiar 31. leading from the hopper 32. Located immediately underneath the igniting box 29, and held closely into engagement with the bottoms ol the traveling grates, is a suction box 33, which is connected by means of a pipe 34 to a suction fan, not shown. .f'

The wind box ii, already referred to, ex-

tends from a point immediately adjacent the suction box 33, to a point not far l'rom the sprocket wheel 1] and is of a width great enough to cover the full length. of the grate sections, which. as shown. extend in a (llHittion transversely to their line of movement. (onnected with this wind box is a. suction pipe 35, which is connected with a suction fan, not shown.

Either of the sproi-lxt wheels may-be directly connected wita a. drive shaft 36, or may be driven in any other suitable manner, provided a comparatively slow rotary movement is imparted to the sprocket wheel, thereby carrying the various grate sections in continuous succession along the supporting rail, underneath the distributor and igniter.

From the foregoing description of the various parts comprising myimproved sintcring machine, the operation thereof may be readily understood.

'lhe: powdered ore contained in the hopper 32 is fed through. the. distributer 31 in a well known manner, and falls upon the grate sections passing underneath. The stationary plow attached to the level oll' the ore and to spread it evenly over the moving grates. 'lhc llaire from the igniting l'urnace 26 is drawn downwardly through the powdered ore into the suction box 33, and thence linds an exit by means of the pipe 34.

i above the suction box 33.

becomes curved.

free from the grate and ends relatively movable igniting box tcnds toand have an updral The ore in the meantime has become intensely heated, and continues in this condition after it has left the position immediately by the endless carrier over the wind box 6 which is constantly drawing in air through the hot material in the grate sections passing above it. Thus the combust on of the ore is continued until the mass reduced to a conglpinerate form. The division of the grate into rectilinear compartments provides molds for the sinteriug material of conven icnt size for further reduction in a blast l'urnace as has been already stated. 'When the crmipartmcnts containing the sintered ore reach the left hand sprocket wheel 11, the individual sections, composing the compartment, in passing around the wheel, change their inclined relation with one another. In

other words, the bottom of the compartment,

as a whole, instead of remaining flat, new lhis tends to loosen the mass from the bottom, while at the sar e time the sides and ends of the compartments separate, thereby allowing the block to fall During the operation of sinterliable to drop through the grate sections into a vided for it. ing, fine ore dust is the crevices between wind box 6. and in order to facilitate the cleaning of the latter, I have arranged the bottom of the box in alternately inclined sections, and at the bottom junction of these sectiong, have provided hancbholes, which are accessible by opening the doors 7, thus greatly facilitating the cleaning of the wind box.

The operation of this device, it will be seen, is continuous and it may housed in any case where asintering machine is necessary. Such substances as lluc dust, a mixture of ilue dust and sul'lid ore, or any line mineral substancicontaining a combustible, may be sure ;ssl'ully treated by this machine.

I am aware that continuously operated carriers for sintering"powdered ore are old, but i believe that l .am the first to design a machine in which the ore is deposited and sintcred in small compartments for the for mation of blocks of convenient size for subse quent treatment, and to provide means for changing the curvature of the botlfOm of the grates and providing the grates with sides awayd'rom one another in order to positively loosen the ma tcrial and to cause its ejectnrcnt.

instead of having the suction box 33 locatedbeneath the traveling grate below the ignitcr, l may arrange the suction box above in the arrangenwnt which 1 have illustrated the creation of a verystrong draft at the point of ignition insures the sintering 01' the top layer of material, caused thereby.

t'instcad of a down draft-.-

lt is now carried into the receptacle pro- I owing to the great heat it is obvious that other forms of the device based upon the same general idea, might be made, but I regard my own, and desire to claim, all such modifications as clearly fall Within the spirit and scope of the invention.

1. In a sintering device, a frame, sprocket Wheels mounted upon said frame, an endless sprocket chain carried upon said sprocket, rails mounted upon said frameandextending between said sprockets, ascries of grate sections carriedbv said sprocket chains and arranged to ride on said rail, certain of said grate sections having division plates attached thereto, and each section being provided with end plates said division plates and end plates dividing the surface of the assembled grate sections into a series of rectilinear con'ipartments, an igniter in close iroximitv to said grate sections, a suction )ox arranged underneath the grate sections in line with said igniter, a wind box arranged between said sprocket Wheels immediately underneath said grate sections, and means for imparting motion to said s )rocket wheels. 2. in a sintcring device, a theme, av pair of sprocket wheels mounted on said frame, an endless sprocketchain carried thereby, a series of grate sections borne by said sprocket Wheel, a rail for supporting said grate sections, division plates carried by certain of said sections and arranged to form compartments, means for filling the comiartmcnts with powdered material, means ior initially igniting the material, means for continuing the combustion of the material, and means for imparting a c ntinuous nwvcment to said grate sections. 4

3. In a sintering machine, aframe, a pair.

of sprocket Wheels mounted on said frame, and provided with an endless sprocket chain. a traveling grate carried bv said sprocket chain and composed ol' individual grate scctions, division plates on said grate forming compartments, said division plates being relatively movable to each other, whereby a 1 positive loosening and ejectment of the 1naterial carried is efi'ected when the grate passes one of said sprocket Wheels;

4. In a sintcring machine, an endless grate composed of a series of individual sections )I'()Vl(l(l with vertical end plates, vertical longitudinal division plates carried by certain of said sections, a transverse division plate carried by each section, the side and end lates being arranged to form rectilinear mold; when the sections of the grate are in horizontal alinement. a

5. In a sintering device, a frame, a pair of sprocket Wheels mounted thereon and provided with an endless sprocket chain, a traveling grate carried on said sprocket chain, and provided with a series of rectilinear compartments, means for feeding material into said compartments, means for lglllllllfl' the for e'ccting the sintcred material throu/ h the relative movement cl the sides and ends of the compartments.

8. In a sintering device, an endless traveling grate, means for charging said grate, means for igniting'the charge, means for sintering the charge, means for molding the sintered charge into blocks, and means for positively loosening and ejecting the molded blocks.

S). In a sintering device, an endless traveb ing grate having compartments formed thereon, means for charging said grate, means for sintering the charge, and means for varying the size o the compartments to cfl'ect the lposcning of the material carried thereon. i

10. In a sintering device, an endless traveling grate provided with compartments, means for depositing material upon said grate, means for sintering the material in said compartments, and means for changing the curvature of the. bottom of the grate and thereby loosening the material carried thereon.

11. In a sintering device, a traveling grate comprising aseries of compartments, each compartment having a. bottom of relatively movable parts, means for charging said grate, and means for sintering the charge.

12: In a sintering device, a traveling grate comprising a series of compartments, each compartment having sides of'relatively movable parts, means for charging said grate, and means for sintering the charge.

13. In a sintering device, a traveling grate comprising a series of com artments, each compartment having ends 0 relatively movable parts, means for charging said grate, and means for sintering the charge.

14-. In a sintering device, a traveling grate comprising a'series of compartments, each compartment having bottoms, sides and ends of relatively movable parts, means for charging said grate, and means for sintering the charge.

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