US 670440 A
Description (OCR text may contain errors)
, u. M. sunou-& w. L. STEELE.
\ ELETmconE coNcENmAm.
2 Sheets-Sheet I.4
il P i Patented mar. 26,'l9ol.
No. 670,440. Patented Mar. 26, I90.
H.' M. SUTTUN W. L. S-EELE.
ELECTRIC 03E CHCENTRATR.
(Application med .my 1a, woo.; 4
' 2 Sheets-Sheei 2.
1mb A Erice'.
eener in. eU'iToN AND WALTER L. STEELE, or DALLAS, TEXAS. l
sreerrcnrr'on foming'em of Leners Parent no. moei-ceased. Marcil ee, Li. eci.
To alli whom 'my con/cern'.- Be it known that We, HENRY M. SUTTON and i XVALTER L. STEELE, citizens of the United `tetes, residing4 at Dallas, intizecounty of,
Dalles, State of Texas, here invented certain new and useful Im proveniente in Electric Ore- Concentretors, of which the following is a. specification, reference being lied therein to the accompanying drawings.
This invention relates To an electric orecencentretor, and particularly to en apparatus wiierein n dry separation is eccted by lic substances from their respective cree'Y orelectrifying particles of ore.
One object of the invention ie to provide an improved method and means for electrically concentrating and separating Avarious. metalthe Substances within which theymeybe c0nmined 'cy means of e surface charged with -ste'tic electricity in connection with suitable means for separating the Weete or refuse mat-4 terial from the ore. Heretoforein this art static or frictional electricity has been needfor concentrating ores by eleetrifying the particles thereof; but difficulty has been exr pcrienced in controlling the clectriiied perti-` clee, ae they niet only mutually repel each other, but nre nlternetelynttracted and repellec'i iowgird any solid substance need to ef found to the devices new in use are overcome by menne of thestrncture herewith preeened in winch en electrically-repulsive Screen ie placed 'adjacent to the electrified belt on which the ore lies in a. pnivernlent condition,
enti. tile'euciicn-pipe or otherdevice may be neefl for the removal of the non-metallic per y rieles.
,A recherche@ of, the invention iste pm-. vide en. apparatus embracing'm eaneby which.l
the cre will be fed in a. thin layer te en electriieiienrfece, from which the metallic 'new l maintenu and my 1s, 190e.
Serial No.l 24.063. No model.)
Astences will be clieclrercefi io it iro er rece tecle, emi menne for discharging the nonmev tallic particles :it en independent point.
Other objects end advantages of the invenvtion will hereinafter appear in the following description, and the novel features thereof will-he particularly pointedoni in the-npv In the drawings, Figure 1 ie n. longitudinal section tlnoeg'n one form of the invention. Fig. $2 is n veriicel crosesection on theline 2 2 of Fig. l. Fig. 3 is e perspective of this form oi" -the invention, showing slightlymodied application of the circensi-fain. Fig. 4 is an elevation of e further modification of the exhaust @reaction pipe. Fig. 5 iena plan sl'xcwncq en arrangement of exheuetpipe edepted for cperetionby either n blowing or' suction device. Figc. 6, 7, end 8 nre detail perspectives of dilferent for-lne of screen-- hoods adapted to operate in connection with enelectriiied surface. Fig. 9 iefe modified fcrrn of the invention embodying a rotating electrified surface.' Fig.- l ise'uriher inediicetion employing en inclinedelectricailycharged surface, and Fig. llis e modification embodying e conical electrified surface.
Like letters of reference indicatie like parte throughout the severnligures of the drew inge. i l
In describing the eeverel applications end modifications of this invention' it may here be Statei inet the specific etrnctnre employed may be varied to e large extent. Although l; ferf shown producen the moet satisfactory resulte, eill the essentiel Aprinciples involved are :tn electrified surface either stationery or .movable eind :tn electrically-repolsive screen 9c or surface located adjacent to the electrified surface to permit the passage of the metallic. particles through the ecreen, While the metallic inertie-lee will be repelle.A there from end returned to the Surface.
Referring to Fig. l, the leiter A deeignetes en exhiinet, or suction pipe of eey desire ccnstruction provided et geinige with hoods a end. connected et its disch-erge en@ with e enitiibl'e Een E, moving diecherge .70, Fig. 3, or other .device for creating@ section or' ex'iien'st therein.; Beneathtiie hoede of this's'uction device e belt E is enitabljf mounted' upon pulleye or rollers D end is electriceily charged,
` will be neen that the movement ol' the shakers G and tho'pan y will dischmglnpou the mov preferably hy n -tatie current, by uwnnao it conductor ll from a generntoraud any nultable connections, euch, for instance, as l a brush I'. interposed between this beltand the suction device la u metallic screen ll, cnnst ituti n; au electristouduetor and 'crmnocted with tht` cart-h by means ot a ground line C,
. no as to return to the earth wired by ,the screen thronghthe shaker in suitably opt-rated by means of n-n ort-,entric bar i, carried by an)v suitable driving-shaft. and connected to the shaker." It
ing bolt-a thin layer of or@ from which the nonmetallic particles will be removed through the honda d, while the metallic particion will be retained upon the belt. and discharged therefrom in any suitable rcceptaclc--for instaiice, as shown at; F.
In Fig. 3 :L ian K has been shown at. one side of the exhaust or eut-.tion pipe A, while the drivitnpshatt J isahown ccccntrically couuected Lo tho har for the purpose ot' reciprocatitn r the satneand rocking the shaker G.
1n Fig. t the suctionpipe A. is extcndedvbeyoud the delivery end ol' thc beltv E and the screens ll prruntnently and directly attached to the open c'tids v1"ff'ithc hoods 1:1..
lu Fig. 5 a t'orm l :suction or exhaust pipe is provided by meat` ot' which a blowing-fan nti-ty be applied at the cud A' oi' the pipe ora anction' t'a-n or devicel at the end A", while the hoods n extend laterally from the pipe A and ovt-rthe belt-E, as in thefortnerittances. Thistorni of hood is shown iu detail in Fig. t3, while in Fig. thc hood is provided with a screen ll, cotnponcd ot a serine of rods extendingr atp-ross the open end of the hood and electrically connected with n. ground-line,
l'n Fig. b the hood u is providedwith a curved or segmental screen H2, gituilarly'conneon-d to ronfltituto an electric conductor.
A moditied forni ol the invention is illustrated in hier. .l, in which the electrically'- charged surlacc consists ola revolving; plate E,',..-ntabl mounted in e standard N, having an opor! tired base n, within which a dri vingpnlloy U may be located, land connected to the .-;hal'tl u', extending,r downward from the plate li'. ing beneath the same is a suitable hopper or receptacle i., provided .with a discharge-spout rl, which may hc emptied by moans ci the re- |uo\ablo\ cap or closure M. Above this-rel. turing plate an annular hood u' is connect-cd 1.o a suitable `suction or exhaust pipe r\.,whilc the plate E' is similarly connected with an. clcctric generator through the tine B. Cen- Surroundingthe plate and extend-A trail); abovetho plate Ea hopper l' is prnvided, from which the ore may be t'cd. lt..
will be seen that-theorie falling upon thecon- 7o terni' the plate E' is carried by tluceutirilugulforcc exerted in the rotary :notion ot' tho plate. toward the edge t lit-root', where the nontnetallic particles are drawn through tho diecharge, while the metallic pattliolesare repcllcd from thcecrecn and discharged at't-he edge o`i` the platre lll' into tho receptacle L.
of the in- A thriller modified application to a Suitable point of 1g" volition is shown in Fig. 10, where the ore 3o passen from the hopper Ii' over, an inclined plate It?, electrically charged from any suitable generator, while the non-mctallicparticlea are removed from said ore by moans of a suction-pipo Al, provided with a hood n? S5 and screen 41I l, suitably connectedV with the earth by means of a ground-line C. The oro in its passage between the screen andplato is freed from the nont`nctallic particles, which pass through the'exln'tust-pipe to a suitable 9o discharge, whilo'tbe metallic par-` ticles drop from the lower edge of said plate, as shown at S. Another tnoditicd application ot' the ,same principlel is illustrated in Fig. lt,`
point of where the ore is discharged from a hopper i o5 upon a'concal plate. or surface Ei", which is suitably charged by electricity from a generator-liuc B,\vltil -eo11centric with the lower port-ion of the conc a screen H5, snitablyconnectcd with a ground-lino C, is disposed. 1F the surface ol the conical plate he suliicieutly charged with electricity, particles of orc u hen similarly charged with electricity wlbbe rcpolled therefrom to such a distance that'. the non-n1ct llic particles will pass through the Screen H, falling upon the outside of the partition iV, While the metallic particles by their ContactJ with the grounded screen are rrpelled therefrom and fall upon the inner surface otLrh It will he seen no the partition, as shown at S. that in thin form ot' the invention the use of n suction or exhaust device is not. necessary, nor would it be in any form of struct ure whereV the electritied plate or surface can repel the non -metallie particles for a-Snficieut distance` 115 therefrom thaty they may be deposited in a separate receptacle from the metallic particles, which are retained near surface by means of the grounded screen,
the plate o1' whichrctuovcs the electric charge from the 12o metal. l l
Front the foregoing description of the construction ot' the apparatus employed in. this invention the operation thereof will be clearly seen, particularly electrically-repoleive screen located above or adjacent to an electrilied surface, by means of which the nonanetiallic particles will-pass through the screen while the metallic `particles. are repelled from the screen and retained 3o A between the name and the electrified Surface until they are discharged into n suitable receptacle. From the foregoing it will also be eeen that the usent? a conveyor for the nonthe essential feature oi' tite r2 '-v