US906433A - Ore-concentrator. - Google Patents

Description

U. S. JAMES.

ORE GONOENTRATOR.

APPLICATION FILED MAY 3l, 1905.

Patented Dec. 8, 1908A 3 SHEETS-SHIJET l.

Ul S. JAMES.

ORE GONCBNTRATOR.

.l y APPLICATION FILED MAY 31. 1905. @9&33, Patented Dec. 8, 1908.

` s SHEETS-SHEET 2.

l n l U. s. JAMES. ORE GONCENTRATOR.

APPLICATION FILED MAY 3l, 1905.

906,433. Patented 1mg, 190s.

3 SHEETS-SHEET 3.

UNlTFlli) STATES FATENT @Fl-@Mill ULYSSES JAlvlES,-OF Nllh'nltli, NEW JERSEY, SSGNOR, BY 'DlltxC'l AND MESNE SSlGN MENTS, 'lO JAMES ORF. CONCIXNTRATOR GO.,

CORPORATION OF NEW JERSEY.

ORE-CONCENTRATOR'.

Specification of Lettere Patent.

Patented Dec. 8, 1908.

Application filedfflay 31, 1905. Serial No. 263,084.

o all 'whom Lt may concern:

Be 1t known that l, lha'ssns S. James, a

citizen of United States, residing at News l ark, in the county ot Essex and State ol' New g 5 Jersey, have invented new and useful linproyexnents in Ore-Concernrators, ol which the tollowing 1s a specrhcation.

lhisin'v'ention relates to ore concentrators, 1

thc object of the in vention being to proride an eli'ective a paratus ot' this character adapted to quie ily and thoroughly separate mineral values from gangue and other t'oreign niatter and to effect the separation of the various mineral 'values from one another'. ln order to enable those skilled in the art to practice the. invention, l have illustrated a simple and convenient forni of embodiment thereofl in the accompanying drawings fornin ing a part ol this speciiication, which l will set forth in detail in the following description, while what l claiin as new will he included in the claims succeeding said descrip-- tion.

Ain the drawings: Figure 'l is a top plan View of a eoncentrator involving my invention. Fig. 2 is a side elevation of the saine. Fig. 3 is a transverse section on the line 3-3 of Fig. l. Fig. 4 is a top plan View of rneehanisni for vibrating the table. .e Fig. 5`is a vertical sectional View, and Fig. (i is an inside View of the saine. Figs. 7 and S are details hereinafter' inore particularly described, showing parts ot' said driving mechanism. Fig. t) is a top plan View of a inodilied shape of table. Fig. lO-is a hottoin plan View of the same. Figs.-ll and l2 are detail views of a slat. Fig. 13 is a trans verse section on the line 13-13 of Fig. t).

The concentrating table shown in the 40 drawings is denoted in a general way 'oy 2, and it may take the external shape shown in Figs. 1 and 2, or that represented in Figs. il and l0, The said table is composed ol' two hinge connected portions, I2il and 2b, respectively. 'lhe structure of the table shown in Figs. l and 2 is the saine as that illustrated in detail in Figs. 9 and 10, so that il" l' describe in full the construction of the latter form of table, the saine will applyy to the other'. The table shown in said Figs. Q and 10 includes in its makeup a plurality ol slats or strips, as 3, extending longitiulinally thereof. and which are eut partially through or lierfed on the hias, as shown at 3 1 in Figs.

1l and 12, which `ligures represent one of the t nient of the slats. This cutting through the. slats produces ahinge in the table, which l will denote by 4. 'lhe hinge, as will he'clearly evident upon an inspection ol' the drawings, is disposed obliquely ol" the tahle, extending from a point near the head corner of the table to a point on the opposite margin ol the tahle he* tween the ends. The slats on their upper sides are covered hy seine suitable llcxihle fabric, as 3b, which inay he linoleuin, and which oi course extends across the hinge line 4. The hinge line (,onstitutes the base line or one ol the sides of the concentrating portion 2'"t of the table. This concent rating portion may he either plain or rill'led. ln Figs.

l to L?, l have shownit as rilllcd, while in 9, l() and i3 it is represented as being plain. The rit'les, when employed, are parallel with the line of motion of the table, and are quite shallow, so as not to cheek the inoyeinent of the gangue on the concentrating portion 2 after such gangue has been separated'troni the mineral. 'lhe portion 2b of the table serves Several oilices, as will hereinafter appear, it being of such construction as to 'present a slirne pan.

The concentrating portion 2 oi" the table is inclined upwardly.iront the hase line toward the tail ol the table, and the 'portion 2b ol the tahle, which serves as a slirne pan, has a downward inclination from the hase line toward the opposite corner, the inclination of this portion of the table being less than that of the concentrating portieri.

The table is so constructed that the pulp is held in a limited area adjacent to the place where it is deposited upon the concentrating portion oi' the table and. is prevented from crossing the hase line separating the concentrating portion of the table frein. the sliine pan. The 4construction ott-he table is also such that when longitudinal, Vihratory or reciproeatory motion is imparted to the table in the proper manner, the inass ot pulp will become stratified upon the concentrating portion oi the table, the heaviest particles `lorniing the stratum at the bottoni and the other strata being arranged in the order oi" the specii'ic grayities ol" the particles forming them, the gangue, which is ol" the least den-` sity, lying on top. '.lhc vihratory 1nove-' nient imparted to the table causes the gradual advance of the pulp toward the tail of the tahlc and also causes a lateral moveseveral stratainto 'which the pulp becomes separated, the lateral inovenient of the gangue being inost rapid and the lateral movement of the lower strata being roughly inversely proportional lto their densities. In this way the gangue is carried comparatively rapidly toward the front margin ol the table in a direction substantially parallel to the base line, but without ever being carried across the base line, whicl'i would cause the bleeding of the pulp. The mineral values are carried onward. toward the tail ol the table with less lateral movement than the gangue, owing to their greater density, and are discharged over the tail of the table and over the front margin adjacent to the tail end.

As previously indicated, the portion 2b of 'the table, in connection with the forward inotion gthereot, prevents the pulp troni vcrossing said base line. This result is aided in the present instance by the quiescent or stagnant wash water in the panlike slime portion of the table.

By referring to Figs. l and 9, it will be seen that along the bach edge ol the concentrating portion 2@ oty the table, there a ledge 8- rising therefrom, said ledge converging at its head end into the base line 4 of the concentrating portion 2a ci the table, so that when pulp is introduced onto. the head end oll the table, it lalls into a narrow space, the head end of the ledge, in connection with the forward motion of the table and the slinie portion 21? thereof, serving to pocket the pulp or positively retain it in a reduced area. As the table vibrates, the pulp mass is stratified and is advanced along the concentrating portion, so that it can gradually or progressively spread out, the mineral values descending according to their specific gravities or weights, while the gangue will be' on the top, together with other undesirable constituents in the pulp. As the mass moves forward, thev mineral values will be gradually panned down, and the gangue will gradually niove away from the mineral values toward but not across the base line el, and when rililes, as 2 C, are present on the concentrating portion, they will not be at such a height as to check or impede the :tree spreading motion ot the gangue, so that,

`when once the gangue has been separated l'roni the mineral values, it cannot again come in con tact therewith.

will hereinafter appear, the angularity of the portion f2 @L ol" the table can be adjusted, so that in case the gangue does not flow properly toward the base line ol'I the concentrating portion, the latter can be raised or its angularity increased in order to promote the desired result, or, if it Hows too freely, the back end of the concentrating portion will be lowered. lt will he understood that as the pulp mass is advanced,` it is stratified, the heavy particles or mineral values taking eoefree a straight line, although notv exactly in the directionl of the length of the table, toward the ltail of the table, where they are discharged in lines properly separated according to their specific gravities, over the tail of the table, the gangue being dischargedl over the forward side of the concentrating portion between the hinge line l and the tail of the table in a solid stream, not mixed with ininerals.

l have designated the portion 2b of the table as a slime portion. Along the head of the same there is shown as extending a ledge Q,-which converges into the ledge 8 alongI the back ol' the table, while on the front side ol the slime portion there is 'a ilange or ledge 10, tapering from its highest point next the ledge .or flange 9 to, and merging into, the surface of the slime portion 2b, in proximity to, but separated from, the hinge line 4. Into this slime iortion 2b which is downwardl inclined from the hinge line 4 toward the head of the table `so as to produce, in connection with the 'llanges or ledges 9 and l0, a pan, there is discharged the wash water which flows over the front ledge l0. The motion ol the table precipitates any mineral values that may be in this wash water onto the bottorn thereof, and such mineral values are gradually worked toward the hinge or base line llso that they can pass out of the outlet between the tail end of the ledge 10 and the hinge line 4, by reason of which l am enabled to save all that is desirable in the pulp.

Any convenient means may be employed tor delivering the pulp ontorthe table, for example, a hopper or feed box, as 1l,- arranged over the acute angular head of the concentrating portion of the table. The hopper itself directs the pulp onto the said acute angular portion, where, by the joint action ot the ledge 8 and the slime portion 2b, augmented by the forward motion of the table and the inclination of the concentrat ing portion, the pulp is held in a narrow area. As the table is vibrated, the mass is panned, the heavy matter descending to the bottoni of the mass and below the gangue, so that, as the 2 ulp mass is advanced with the forward motion of the table, the gangue on top of the mineral values can roll over the same with# outdisturbing or becoming mixed with them. -Tlie hopper of leed box is ixedly mounted upon the table, for which purpose its base or foot can be bolted or otherwise fastened to the slime portion 2b olE such table.

The wash water for the pulp may be supplied by a pipe as l5', arranged over the concentrating portion 2f* of the table and supported by suitable stationary bearings, as 16. The said pipe 'may be supplied with water in any suitable way.

Upon reference to Fig. l ol the drawings, it will. be seen that the llow ol wash water is diagonal to the line of motion of 'the table,

witii'th'ef feed side ol' the table.

but is at right angles to the base line -t oll the concentrating portion 2 ot such table, so that the motion ot` the. mass on said concentrating portion is, as nearly as possible, opposed to the pressure olI the water, by reason ot' which the water will not mix the mineral values with the gaugue, which latter has previously passed tree oll thtl t'ormer` In other words, the motion ol` the mineral values is opposed to the pressure ol: the water, so that such pressure will not tend, as indicated, to mix the minerals and gangue, while, at the same time, the water can l'reely and t-horoughly wash the minerals and simultaneously wash the gangue toward the base line ol the concentrating portion1 the motion ol` the gangue toward said base line being due to the water, augmented b v the inclination olE said concentrating portion.

In Figs. l, J and lt) oll the drawing, the table so constructed that its lm'ward or concentrate discharge end is arranged obliquely, this edge in Fig. .l forming an acute angle I By so constructing the table, the concentrate discharge end thereof is kept wet from the tlow ol' the dressing water without the nid oll a spray pipe across such end ol' theI table. ill this end of the table becomes dry, it causes the concentrates to bank at this point, and the same cannot be discharged. 'lo avoid this dilliculty, certain tables use what is known as i spray pipe. This spray pipe is continually liable to stoppage owing to tlie accumulation of leaves and dirt, thus requiring yconsiderable attention. By the simple means which I have adopted ol: cutting the concentrate discharge end of the table at an acute angle. the use ol suoli a s ray pipe with its attendant objections is olvia-ted, and a proper discharge ol' the concentrates is insured at all times. It will be understood, ol' course, that the direction of llow ol the dressing water relatively to the table may be varied. In fact, in practice the inclination of the table may be varied to meet different conditions', the invention not being limited in this regard. For instance, in some cases, an inclination oll one q"arter inch in six feet may be sullicient, while in some cases, it may be necessary to set thel table at an inclination of three quarters ol an inch to six feet. In niost cases, however, an inclination of onehalt an inch in six feet is most satisfactory,VA

and the water in such cases will flow almost at right angles to the linel of motion ot the table.

I will describe hereinafter a means for imparting a vibration ol a peculiar character to the table, the table initially, on its working stroke, being given a slow movement, and finally an accelerated or rapid motion, to drive the mass on the concentrating portion iflthercof forward, and on its return movement, being given an initially rapid but finally lthe bases ol' which engage thel the table longitudinally.

slower motion, so that the pulp will be rctained in its forward position. This forward motion ol the table, as will be understood from what I have hereinbelore stated aids, i in connection with the portion 2b of the 70 table, in preventing the pulp mass on the concentrating portion from crossing the base line 4, and in so doing, serves to hold the pulp in a narrow or reduced area, and inally permits its gradual spreading in area so that the gangue can get l'ree of the mineral values or those which are to be saved.

Arranged under the table are two trames, as 17 and 18, respectively, (see Fig. 2) said frames being connected by hinges, each designated by 1t), the axes of the hnwesbeing in common and coincident vertically with the hinge line at between the sections of the table. Between the frames 1 7 and 18, and the two sections ol the. table, are links, as 20, connected llexibly in some suitable manner' at their opposite ends with the table sections and frames res ieetively, in order to permit the requisite vi viratory motion of the table. The frame 1S, as willbe understood, is connected with the table section 2, and it is arranged for tipping motion,.so that a corresponding motion can be obtained with respect to said table section 2, in order to adjust the angularity ol' the latter. To secure the tipping motion in question, vof the said l'ramc i8, l tap through the same screws 21, lniving hand wheels at their upper ends, and

ase trame 22. By the manipulation ol" the wheels, theI frame 18 can be raised'sor lowered and a corresponding adjustment secured with respect to the concentrating portion or section 2a of the table.

It will be evident that when the concentrating portion ol` the table is raised or lowcred, the hinge lino between said concentrating portion and the slime portion is not varied, but throughout the various adjustments of said eminenti-ating portion said hinge line remains in a uniform position which in the present case is horizontal.

In Figs. 4t to 8 inclusive, I have shown in detail :i means for vibra-ting or reciprocating The head end ol the table is shown as furnished with an arm 23, to which is pivoted a rod 24 extending through a guide sleeve 25 and also through a coiled spring 26 bearing at one end against said guide sleeve 25 and at the other against a slide 27 suitably'guided for-longitudinal movement upon the base 22, the outer end of the rod passing through, and having a nut bearing against, said slide. A rocker 29, consisting of two complemental side bars, bears at its lower end against the extreme outer end of the arm 23, and rigidly fastened to the upper end of the rocker is a flexible strap 30, connected at its other end to the frame 28. Guided vertically by the rocker is a plate 31, such vertical movement -being for adjustment in order to vary the stroke .of the rocker. Connected with the head of the rocker and with the framing is a iiexible connection, as 32, which may be of spring metal in order to hold the rocker down. The plate 31 is provided with a shoe 33 constituting the fu crum portion of the rocker and having a rounded working surface which bears against the framing 28. The rocker'is provided with a vertically disposed screw 34, the threaded portion of which is tapped through a iange on the plate 31 in order to raise the plate and consequently vary the stroke of the rocker by the operation of the said screw, which latter is provided with a thumb iece at its upper end. The screw is verticaily immovable, and for this purpose it may have a iiXed shoulder clamped within the head ot the rocker. lt will be understood that the rocker 29 imparts an advancing motion to the table 2 in opposition to the coiled spring 26. Supported by the frame 28 is a shaft 35 provided with an eccentric 36 for operating a pitman 37 connected at its upper end in some iiXed manner with the flexible strap 30 between its point of attachment with the frame 28and rocker 29. By the construction described, the eccentric 36 imparts, as its position varies, at irst a slow advancing movement through the intervening mechanism, to the table, and iinally an accelerated or very rapid motion, in order to forcibly or positively advance the pulp along the table. During the advancing motion of the table, the spring 26 is put under compression, so that on the return motion of the eccentric, the spi-ing can lirst impart a very rapid and thenv a slower return motion to the table, the return motion being controlled of course by the eccentric.

Hereinbefore I have spoken of the head and tail end of the table. The head of the table is at the right in Figs. 1,' 2, 9 4and 1.0, While the tail is at the left in said iigures. The front of the table is that over which the wash water is discharged, while the back of the table is that along whicl'i "the ledge or flange S extends. l deem it expedient to describe more in detail the novel construction of eccentric and spring mechanism for eii'ecting the herein-- ing through a perforation substantially centrally of thejleXible strap 3U, so that, as the position of the eccentric-36 varies, I can, in connection with the spring 26, secure the desired motion of the table. vUpon the shaft 35, provided withthe eccentric, is a driver,`

which may be a pulley.

Having thus described the invention, What I claim is: l v

l1. A longitudinally vibrator concentrating table having two portions exibly joined with each other at opposite sides of a hori zontally dis o s'ed hinge line extending obliquely to t e direction of motion of the table, one of said portions of the table being upwardly inclined from said line and oblique to the line of motion of the table, and means for varying the angularposition of said up-4 portions ieXibly joined with each other and at opposite sides of a line disposed diago-' nally to the direction of motion of the tatie, said concentrating portion being upwardly inclined from said line and oblique to said direction of motion7 and means for supplying pulp on to the head end of said concentrating' portion.

4. A ing table having flexibly united concentrating and slime ort-ions at opposite sides of a line disposed o dique to the line of motion oi the table, said concentrating portion being upwardly inclined from the line dividing the said portions and oblique to said line of motion, means for supplying pulp on to the head end of said concentrating portion, and a pipe. for Wash water extending along the concentrating portion for directing wash water toward the line between the two portions and in a direction oblique to the line of motion of the table.

5. A longitudinally vibratory concentrate ing table having concentrating and slime portions at opposite sides of a dividing line extending oblique to theline of motion of the table, said concentrating portion being upwardly inclined from said dividing line andoblique to the said line of motion, and means longitudinally vibrator-y concentratcarried by the table for supplying pulp' directly onto the head end v'of said concentratlng portion.

6. A ongitudinally vibratory concentrating table sub-divided into connected concentrating and slime portions, the dividing line between the two being obliq ue to theline of motion of the table, said concentrating portion being upwardly inclined from said dividing line and Aoblique to the said line ot' niotion, means carried h v the tahle For supplying pulp onto the head end oi` the said ronceiitrating portion, and a` pipe l'or wash water extending along the upncr edge ot' said ciincentrating portion for '.irecting wash water towards said dividing line and in a direction oblique to the said line ol' motion.

A longitudinally vilnatr-n'v concentrating table having its concentrating surface upwardlv inclii'iedlroni a hase lim` oblique to the line ol i'notion ol the lalile and having a slime pan separated l'roin the concentrating surface hy said hase line, the coin'entrating 'portion of the 'tahle heilig provided with pulp feeding devices discliargingl directly thereon, and its concentri'iting surface oeing ohlioue to said line oi' iiiot-ion. i

S. A longitudinally vihratorv concentrating tahle having its concentrating iortioii upwardly inclined l'roiii a. hase lino oliiiquo to the line ol' motion olE the tahle and having a slime pan separated lroni the concentrating portion hy said hase line, the concentrating portion of the table lining provided with pulp feeding devices discharging directly thereon and with means for supplying wash water in such a way as to causo a llow suhstantiallv perpendicular to said hase line. i

t). A longitudinally vihraloruv coiirentrating tahle divided on ay hinge line diagonal to the direction ol' motion ol they talile to n'esent portions at opposite sides of the said line, one portion lieing upwardly inclined from the otheig the upwardly ii'iclined portion having a flange at its haelt', onverging into the hinge line at the head ol' said concentrating portion, and the other `portion of the table having a ledge along its head and side, the last mentioned ledge having its tail end extending short ot' the hii'ige line.

1t). A longitudinally vihratory Concentrat 'ing table divided on ay line diagonal to the direction ol' inoticn ot' the tahle to present portions at opposite sides of `said line, one portion lining upwardly inclined from the other, nieans for introducing pulp onto the head end oi said inclined portion of tlu` table, the other portion Yboing downwi'irdlv inclined and at a. less inciination than the concentratiiig portion and having a llange along its li :ad and iront, the. last mentioned llange tapering from its head end toward its tail end. the latter extending short ol' the hinge line.

11. in eiidwise irreipriicatorv concentrating tahlc having separate. coiicentratiiig portions ilexibly joined along a line olilique to the line of inet-ion ot' tliejahle. to independently and sinniltaneously conccnl rate coarse and tine materials, the portion ol the llaole upon wliirh the coarse materials arc concenfveii' he 'front oi the table and the portion oi". the iahlc on which the finer .materials are concentrated having a discharge for the. inineral values hetween the head o'l" the table and the place at which said gangue is discharged.

l2. :Xn cndwise reciprocatoryv concentrating tahle having separate concentrating portions to' independently and simultaneously .concentrate coarse and lino materials, the portion ol tho tahle upon which the coarse materials are concentrated having a discharge for the gangue over the 'front of the table and the portion of the tahle on which the liner materials are concentrated having a tratcd having a discharge for the gaiigue discharge l'or the mineral values between the head of the tahle and the place at which said gang-uc is discharged, the two portions of the table heing llexihly joined along a line obliquo to the line ol" niotion of the table for preventing tliereh)vv the coarse and 'line ninteiials from heing iii-ought together on the tahle when once they are separated thereon.

115. An endwise reciprocatoijv concentrating table having concentrating and slinie portions llexihly lioined at opposite sides of' a line oblique to the line of motion of the tahle, to iiulepcndentlv and simultaneously eencei'itrate the pulp and sliines, the concentrating portion, having a discharge for the gangue at tno Yl'ront ol the table, and the slime port ion having means for maintaining water delivered tliereinto in a substantially' quiet condition and also having an outlet lfor mineral values between thc head of the taiile and the place at which the gangue isdischargd.

il. An cn'dwise reciprocatory concentrating tahle having ulp and slime concentrating portions llexilily connected along a line oblique to the line of motion ofthe table, the slinie concentrating portion having water rctarding means along its head and iront sides which on the lront of the slime concentrating portion extend short of said line to provide an outlet for mineral values.

15. A coneentrator deck comprising a plurality or' relatively inclined planes each of constant area, `said planes meeting in a line extending from the rear end of the table to 'wards the front end thereof in a general diagonal direction, and means `for varying the relative inclination olV said planes.

16. A eonccntrator deck oom rising a hiralitv of relatively inclined p anos, w iicli meet in a line extendingdiagonally of the table-trom the rear end towards the front end thereof, one of said planes being adapted to decrease the transverse llow of pulp towards thc` tailings side of the table, said transverse .flow heilig induced by another plane of greater inclination.

17. A concentrator table coin rising a plurality olE independentplanes eacli of constant area, said planes meeting in a line extending i from the rear end ol the table towards the frontl end thereof in a general diagonal direction and one ot said planes being inclined downwardlyl towards the tailings side of the ble or deck comprised of a plurality of inden pendently adjustable planes of 'constant area, which meet in u line extending lron'i the rear end of the table towards the front end thereof in a general diagonal direction', and means for adjusting the relative inclination of the said planes.

19. A eoncentrz'itoritable comprised of a. plurality of adjustable plaines of constant area, seid planes meeting in s Ene which extends diagonally downward from the rear end and-feed side oi the table towards the front or concentrate end und tailings side of the' table, the concentrate or front end of the *pel-ole forming an acute angle with the: feed side of the table.

20. A oonoentretor table the front end oi which extends oblif uely from the upper or? my hand in presence of two subscribing Wit- 30 DQSSGS.

ULYSSES S. JAMES.

Vdi b'nesses HEATH SUTHERLAND, DAISY TAYLOR.

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