US1083531A - Ore-concentrator. - Google Patents

Description

v e. I. GLASSBRQOK.

ORE CONGENTRATOR.

APPLICATION FILED DEC 23, 1912.

Patented J an 6, 1914.

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19L Ema o s a o G Henna? G. I. GLASSBROOK.

ORE GONGENTRATOR. APPLICATION FI'LBD'DEO. 23, 1912.

I Patented Jan. 6, 1914.

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CLARENCE I. GLASSBROOK, 0F SALT LAKE'CITY, UTAH.

ORE-GONCEN'IRATOB.

Specification of Letters Patent.

Fatented Jan. 6, 191-1.

Application filed December 23, 1912. Serial No. 738,314.

To all whom it may concern:

Be it. known that I, CLARENCE I. GLASS- BROOK, a citizen of the United States, residing at Salt Lake City, in the county'of Salt Lake and State of Utah, have invented certain new and useful Improvements in Ore- Concentrators, of which the following is a specification.

This invention relates to certain new and useful improvements in machines designed for the concentration of ore, and the same consists, essentially, in providing a concentrating table with a surface composed of several connected and continuous planes, each adapted to perform a separate and distinct part in the process of concentrating a flowing body of mineral pulp.

The invention further consists, of a concentrating table having a surface composed of a stratifying plane, a succeeding substantially level bedding and discharging plane, a plane succeedingthe discharging plane and adapted to resist or hinder the progression of material received from the discharging plane, and a dressing plane succeeding the resisting plane.

The invention-further consists, in providing the surface of the concentrating table with a portion intermediate of its code which is level longitudinally and transversely and which serves as a discharge plane for the separated material.

The invention also consists, in means for adjusting the inclination of the planes at opposite ends of the table, and in the parts and the construction, arrangements and combinations of parts which I will hereinafter describe and claim. I

In the accompanying drawings forming art of this specification and in which simii ar letters of reference indicate like parts in the several views, Figure 1 is a plan view of a concentrating table embodying the salient features of my invention. Fig. 2 is a similar View of a table of modified form. showing longitudinally extending channels or overflow openings in the intermediate plane, and showing channels in the plane at the tail end of the table. Fig. 3 is a side elevation of the concentrator showing means for imparting a reciprocating motion thereto. Fig. 4 is an end view of the tail end of the table. Fig. 5 is a cross sectional view on the line, X-X of Fig. 2. Fig. (i is a cross sectional view on the line Y-Y of Fig. 1. Fig.7 is a detail illustrating the adjustment of the inclination of the discharge plane and its connecting retarding plane. Fig. 8 is a sectional detail of a modification to be hereinafter referred to.

In carrying out my invention 1 construct a table, T, of suitable material and of any desired length and width, said tablc'being of the type adapted to be reciprocated and to this end the table is mounted at its ends and intermediate portions upon suitable rockers, R, which, in the illustrated embodi- .inentof the invention may be of the type shown, described and claimed in my prior Patent Number 1,038,871., dated September 17, 1912. In order that such a table may be reciprocated. the head end thereof will be connected with some suitable form of head mechanism, shown generally at H for imparting reciprocable movement and in Fig. 3, I desire it understood that the salient features of the present invention do not relate to the head mechanism, but to the arrangement of the bed or working surface of the table, and, therefore, the present invention is not limited to any particular mecha nism for imparting reciprocating movement to the table, or to any particular manner of mounting the table so that it may be reciproc-ated, as the novel bed or working surface of the table, which is the essential feature of my present invention, may be used in other relations and with other means for mounting and reciprocating the table, without departing from the spirit of the invention.

As shown in Fig. 1. the concentrating table has its bed or working surface, composed of four associated planes or divisions, each plane succeeding another and each plane performing a separate and distinctpart in the operation, which I will hereinafter. describe.

At the head end of the table is mounted some appropriate feed box or distributor, F from which the pulp or ore to be concentrated is fed upon the upper end of the long inclined plane, i. this plane representing one of the divisions or planes of the table, and the distrihnter being designed to feed pulp uniformly across the table at or near the upper or head end of the said plane.

The table is provided with appropriate sides, 2, which extend above th level of the concentrating surface, but at an interm diate portion of these sides corresponding to an intermediate plane,

B, which I will lit hereinafter specifically refer to, the sides are cut away or reduced in height, as at E in Fig. 3, .to form lateral passages for thematerial overflowing from this plane or part of the table. i

While I .prefer constructing the table in the manner before described, and providing the table with the side discharges, 'itis not necessary that the sides of the table be cutaway as shown at E, but these sides may remain of normal height and openings similar to those shown at G may be made 1 throughthe table adjacent the vertical sides,"

as shown in'Fig. 8, for the purpose of forming the side discharge.

The inclir'ied'plane or portion, A, .of the table is a s atifying plane, affording a surface upon hich the minerals that flow over a it may stratify according to their specific gravities, the heaviest on the bottom and the lightest on top, in which position the particles are progressed'forward onto the plane, B, which connects with and forms a continuation of the lower end of the stratifyingplane, A, and which plane, B, is a discharge plane, and is preferably level both laterally and longitudinally with the raised outlets, E, formed by cutting away the in-.

termediate portions of the sides opposite or corresponding to the plane,rB, as shown in Fig. 3, and as before mentioned. In addition to these overflows, E, the intermediate level plane, B, may be provided at intermediatepoints in its transverse length with outlets, E, bounded by raised flanges, these outlets serving to receive the overflow ,of surplus water andwaste or tailings which are'thrown off in the process 'of concentration and which are held on the plane, B, as opposed to its progression by an adjacent and succeeding inclined plane, C, which will presently again refer to.

The flanged or raised outlets, E. and E, for'the level plane, B, constitutedams of sufficient height to protect the'lower stratum of minerals, which is covered with the lighter gangue, and holds it from.being washed away with the water and sands as a they are carried over in the process of elimination; and as the lower stratum is be ing continuously advanced toward and up the inclined 'plane, C, which succeeds the The dams, E and E, with which the plane, B,is provided may be of such length as to afford a much greater overflow sur-J face than is afforded in the width of the incline or plane, A. To illustratg: If the width of the inclined plane, A, is five feet and't-he depth of the flowing pulp is one quarter of an inch and the overflow dams, E and E, are two and one-half feet long,

' I would then have eight dams, as shown in Fig. 5, each two and one-half feet long or twenty lineal feet, and as the dams are all of equal height and level, the flow down the inclined plane, A, is equally divided, I would have a depth'of overflow of each section of 89 the plane, B, equal to one-quarter of the flow on the plane, A, or'in other words, a depth of s overflow of about one-sixteenth of an inch. This provision of extra overflow surface is important, particularly when used in association with the intermediate dams, E, of

Figs.'2 and 5,-and of which there may be any desired number, for at least two reasons. First, by dividing and reducing the depth of ,the overflow, I avoid rapid currents in 90 any one direction which would cause agitation of the stratified mineral on the surface of the level plane, B, and thereby cause a loss of fine material which would be carried away with the water and waste material as suspended matter: Second,by the introduction of the dams on the plane, B, at proper Y distances acrosssaid plane, I relieve any. congestion of accumulated gangue at the.

base of the succeeding incline',-G, which might otherwise interfere with the proper progression and dressing of the lower mineral strata, and for other-reasons;

The bedded and stratifie'd minerals on the level plane, B, will-always maintain a unim form depth across said plane, insurlng an. i

even discharge at the overflows or dams, E, E, for the reason that the reciprocating motion imparted to the table by the headmechanismwill have the efl'ect of shaking theimmersed sands and minerals to a constant level. This constant Stratified condition of the heavier minerals and ga'ngue on the level discharging plane, B, insures a rapid elimination of the top layer ofwaste matter over the raised overflow dams, E and E, the overflow being laterally in the form of a thin film and. ina slowly-moving cur-- rent without disturbing and thereby causing a loss of the lowe'r'-'st'rata of minerals that i are being progressed'longitudinally alon said plane or planes. p I I As before 'stated the intermediate level plane, B, connects at its lower edge with the succeeding plane, G, which. latter plane 15,

inclined .upwardly toward the tail end of the machine and is-designed to retard orhinder the progression of the material from the plane, B, 911 to the final-inclined plane,

., latter -plane,-;D, is a dressing plane 133 i upon which is delivered the water discharged from the distributer, H, the said plane, D,

- bein given such degree of inclination as "will e best adapted to the proper dressing of'the concentrates as they pass over it from the more sharply-inclined retarding plane,

C, to the tail end of the machine.

I .The water and all minerals and'ga'ngu'e '"ca rrieddown with it in the'dr'e'ssing process arecaught on the level plane, B, where the 3 heavier mineral particles assisted by the .reciprocating'motion imparted to thevtable,

are given an opportunity to again settle,- and lie-progressed up the incline, C, while the lighter "ganglfeis carried by the combinedwaters fiowingfrom' opposite directions toward the plahjB, from the inclinedplanes,

A G and D, over the outlets E and E, into some'suitable launder, L, or other receiver provided to carry them'away' The plane, C,i s a comparatively short 'I plane whichliesvintermediate of the planes,

. and thereby forms a sloping wall of such,

- inclinationthat the sands which usually The: plane, C, has a hired sharp or "rapidly rising inclination', greaterthan thatgiven the plane, D, and it joins the level plane, B,

at the concentrates discharge end thereof,

form theJgreater portion of the crushed ore or pulp .to be concentrated,- will be retarded or checked in their progress under the influence of the progressive action of the machine, and owing to the less specific gravity of thesesands as compared to their associated minerals, the sands will be-carried over the overflow dams, E and E, together with the water in which they-are submerged, while the minerals of greater specific gravityand which ,form the lower strata on the level plane, B, will be forced up and over the plane, C, and onto 'the final dressing plane,

'. D, thereby' eflecting the separation of the Any particles of -sand that may be carried mineral'eontents'bf theore from the asso ,ciated rock' from which. it has been liberated by theprocess of crushing and fine grinding.

over the short plane, C, by the body of advancing minerals. maybe washec llmck onto thelerel plane, 13,,by the-opposingcurrent plane,

inclined plane, A.

of dressing waterfi iving o n the plane,"

D, which is inclined downwardly toward the By reference to space 'occupied by the concentrated product passing over the plane, D, thereby expediting the process of dressing with the water 'upper end of the plane, as larly in Figs. 3 and7.

B, and substantially oppositely to the g I f 4 a 'f' stratified on the plane, -A;'that the heavier Figs. 2 and 4, it will be observed that the final dressing plane, D, is there provided with parallel'channels, D, the purpose ofwhich is to contract "the appliedl'to the discharge at of the M,

and increasing the-speed with which the mineral may-be progressed, owing to the greater mass, of thechamieled bodies. 7

It will be noted that the *pulp'dsaifed ion.

to the table at the end oppositethe' concen- *tratesd1scharge, and that-the introduction -of'the feed cannot in any way dis turb the process of stratification, agitatethe bedded material on the'plane, B, or interfere with the prompt settling and recovery of min C, from the final dressing plane, D

The stratifying plane, A, is continuously inclined downward from the. feed end toits body which admits ofall suspended particles being brought into contact with the surface of the plane orthe stratum of sand and 'erals washed. back over the retarding plane, I

minerals covering it as a result of accelera-m tion of the flow due to the inclination of the plane, A, and which latter plane may be made adjustable inorder to fix it s inclination to that degree which willbest serve the purpose; under varying conditions of quantity, or the ratio of solids and'liquids ofwhich'the pulp being treated is composed, this provision for the] adjustment of the stratifying plane, A, may be important. The adjustment of the plane, A, may be accomplished by any well known and desired manner and as one embodiment of this phase of my invention I show eccentrics, 5, on shafts,

6, and adapted to increase or decrease the inclination of the plane, A, according as the eccentric is-turned to cause. its ascending or descending cam surface-to bear under the shown particu- It will also be noted tions of the planes, C and D, are fixed as to each other and that any adjustment of the inclination of the plane, D, affects the plane,

C, directly in proportion to v the relative "by the actuating mechanism. From the foregoing it willbe-apparent that the minerals containedin the pulp are that the relative posil minerals will settle 'to the bottom and the lighter minerals and gangue will remain on rived in their stratifiedformfand' the lighter portion or waste will be allowed to flow over the dams and 'E' while'the heavier mineral of the side disehargeon both sides of an intermediate portion of the. table, which per-- mits the further novel function of propelling the mineral up the incline, C, while the waste.

material is discharged over the dams, E. and

E, of the level plane, B.

In the use of my improved table, I am not requ redto tilt the table either laterally or longitudinally, and I' dispense with the customary rifiies and stratify down the initial inchne, A. If, however, it. should appear that a tilting of the machine was' desirable, it might be accomplished without-any substantial alteration in the form of the table surface with the several planes heretofore described. In either instance there is no conflict between the functions of separating the minerals on the one bed and'the-dis} charge of the waste-matter on the other.

Having thus described my invention what I claim as new and desire to secureby LettersPatentis: I j l. A concentrating table surface composed of .a stratifyingplane, a succeeding bedding and'discharge plane, said-bedding andhdi's charge plane having means for discharging the lighter gangue from the table, aresisting plane succeeding the discharge plane adapted to hinder the progressionbfmaterialpreceived therefrom, and a dressing plane succeeding the resisting plane. Y

- 2. A concentrating table surface having an inclined stratifying plane, a discharge plane connecting therewith, said discharge plane 'being provided with means for discharging the lighter gangue from the, table, an inclined resisting plane succeeding the said discharge plane, and a dressing plane with which the inclined resisting plane connects.

A concentrating table surface having an adjustably inclined stratifying plane, a discharge plane connecting therewith, said discharge plane being provided with means for discharging the lighter gangue from the table, and an adjustable plane having in sucsection.

cession a resisting section and a dressing -4.. A concentrating table surface whose lateral position 'is a constant level, saidsur 'face comprising a longitudinally inclined stratifying plane, a discharging plane connecting therewith, said discharge plane having outlets for the discharge .of lighter gangue from the table, and'longitudinally in- .clined resisting and dressing "planes succeeding the discharging plane and connecting therewith-and with each other.

5. A concentrating table surface whose lateral position-is a constant level, said surface comprising a longitudinally inclined stratifying plane, a discharge plane connecting a stratifying plane, a succeeding bed ding and discharge plane, and success1ve.resis'ting and dressing planes, said discharge. plane beingjprovided with side and intergangue. fromfthe table, and vertical flanges bounding and protecting said openings;

7. Areciprocating concentrating table surface comprising a stratifying plane, a succeeding bedding plane, said bedding plane havingop'eningsand flanges adjacent thereto forming protecting dams, said flanges be ing of equal height andpositioned longitudinal to the .line'of motion and admitting of the lateral discharge of lighter gangue from the table, simultaneously with the discharge longitudinally'of the-protected lower strata of heavier minerals, and a plane succeeding the bedding planehaving' in succession a resisting section and a dressing section.

8. A concentratin'gtable surface comp'ris ing astratifyin plane, a' discharge plane, said dischargep ane having means for disinclined dressingplane, and an inclined resisting plane-connecting with the discharge plane andforming a part ofthe dressing plane, andaof a differentangle of fixed inelinati.0n-.

I; 9. A concentratingv tablesurface comprising a' stratifying plane, a bedding and discharge plane and an adjustable inclined" combined resistin and dressing plane succeeding. the bedding and '.discharge plane,

means for. discharging lighter gangue from the table, and means for maintaining the [direct proportion to the inclination of the dressing plane.

.10.-A concentrating table, comprising a stratifying'plane, a succeeding bedding and ing means for discharging the lighter gangue from the table, and an adjustably inclined, plane succeeding thebedding and discharge plane and hayingini succession a resisting section and a dressing section, and having a corrugated surface. I t

11. A concentrating table, comprising a stratifying plane, a succeeding bedding and discharge plane, said discharge plane having means for discharging vthe-lighter gangue from the table, and an adjustably inclined plane and'having in succession a resisting outlets for the discharge of the lighter mediate openings for the discharge of lighter discharge plane, said -discharge plane hay-- '6. A concentrating table surface compris-- charging lighter'gaPngue from the table, an

said last-named plan'ebeing provided with inclination of the resisting plane always in planesucceeding. the b edding and discharge,

from the table, an inclined resisting plane succeeding the bedding and discharge plane, and a dressing plane succeeding the resisting plane, said dressing plane being longitudinally channeled, and means for maintaining the inclination of the resisting plane always in direct proportion tothe inclination of the dressing plane.

13. A concentrating table surface composed in part of'an adjustably inclined plane. having in succession a resisting section and a dressing section, the different angles of inclination of each of said sections being permanently fixed as to the other at any degree of adjusted inclination of said plane.

14;, A concentrating table surface composed of a stratifying plane, a discharging lighter material, a resisting plane, and a dressing plane, the receiving and major portion of the stratifying plane, the upper or delivery portion of the resisting plane, and all of the dressing plane lying above the overflow level of the discharging plane. In testimony whereof I afiix my signature in presence of two Witnesses.

' CLARENCE I. GLASSBROOK.

Witnesses:

JOSEPH V. GATES, GEORGE KILrAcn.

copier otthis patent may be obtained for five cents each, by addressing the Commissioner of iatente;

I v Washington, D. G.

plane having an overflow discharge for the-

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