US452676A

US452676A - Ore-concentrator

Info

Publication number: US452676A
Authority: US
Publication date: 1891-05-19
Anticipated expiration: 1908-05-19

Description

(No Model.)

E. MANUELl E K. M. EEEVES.

OEE GONGENTEATOE.

No. 452,676. Patented May 19,1891

ms Noms :Evans ca. mavo-umu., wnsnmu'run, n. c.

UNITED STATES PATENT il? EETCE.

oR-Conanterre/AroR.

SPECIFICATION forming part of Letters Patent No. 452,676, dated May 19,1891.

Application filed January 2S, 1891. Serial No. 379,416. (No model.)

To @ZZ whom t may concern,.- f

Be it known that we, FRED MANUEL and KENNETH M. REEVES, of Helena, in the'county clear, and exact description.

The object of the invention is to provide a new and improved ore-concentrator which is simple and durable in construction, veryef- -i'ective in operation, and readily separates the concentrates from the tailings.

The invention consists of a conical cylinder mounted to rock and provided at its closed large end with an inlet, the small end being open and forming an outlet.

The invention also consists in certain parts and details and combinations of the same, as will be described hereinafter, and then pointed out in the claims.

Reference is to be had to the accompanying drawings, forming a part of this specification, in which similar letters of reference indicate corresponding parts in all the figures.

Figure lisa sectional side` elevation of the improvement on the line l l of Fig. 3. Fig. 2 is an end elevation of the small end of the cylinder. Fig. 3 is atransverse section of the improvement on the line 3 of Fig. l. Fig. 4 is a similar view of the same on the lineiof Fig. l. Fig. 5 is an enlarged side elevation, with parts in section, of thc water-feed pipe. Fig. 6 is an en d elevation of the same with parts broken out. Fig. 7 is a sectional side elevation of a device for raising or lowering the table supporting the cylinder; and Fig. S is an end elevation of the large end of the cylinder, illustrating the mechanism for operating the conveyer.

The improved ore-concentrator is provided with a cylinder A, made in the shape of a truncated cone and having its large end closed and its small end open, so as to form a discharge for the tailings and water. The cylinder A is secured .to semicircular rockers B, mounted to rockon a series of longitudinally-extending' strips C, secured on the top of a table D, pivoted at one end at or near the large end of the cylinder A, and adapted to be raised and lowered at the small end, so as to regulate the level of the pulp in the cylinder A. The rockers B are each provided in the middle at their under side with a notch adapted to be engaged by a V- shaped longitudinally-extending strip C,be ing one of the strips Cpreviously mentioned. This V-shaped strip and a notch serve to return the cylinder A to the proper place after imparting a rocking motion to the right and left to the cylinder. In order to prevent longitudinal displacement of the cylinder and its rockers, transverse guiding-strips C2 are fastened to the top of the strips C on the table Don each side of each rocker, as is plainly shown in Figs. l and 3.

In order to swing the table D up and down, the said table is provided near the large end of the cylinder A with transversely-extending strips D', fulcrunied on correspondinglyrecessed supports D2, erected on the floor on which the machine stands. The other end of the table D is adapted to be raised or lowered by means of eccentrics E, secured on a transv'ersely-extending shaft E', mountedto turn in suitable bearings E2, erected on the fioor. The shaft'E is provided on one end with a belt-wheel E3 or other means for turning the said shaft-E to swing the eccentrics or cam-wheels E up or down to raise or lower this end of the table, the latter swinging on the transverse strips D as a fulcrum.

Instead of the eccentrics E, jack-screws F may be employed, screwing vertically in suitable nuts F, held on posts or supports F2, erected on the floor. (See Fig. 7.) The cylinder A is provided on its top with bracket-s C', pivotally connected with a pitman G, connected with suitable machinery for imparting a transverse rolling motion to the said cylinder, so as to rock the same on its rockers B on the longitiulinally-extending strips C. By thus causing the rockers B to pass from one strip to another a sudden jerk is given to the rocker, and consequently to the cylinder A, so as to agitate more readily the pulp within the cylinder A. The latter is provided on top near its closed end with an inlet A', connected by a flexible tube H with the feed-hop per Il', through which the pulp is introduced. The flexible tube H follows the motion of the cylinder A, so thata continuous feeding from the hopper H is insured.

The small end of the cylinderA is adapted to be opened or closed more or less by a gate IOO l, hung on alcver l,.undcr the control ot' the Operator. Near the discharge end of the cylinder A, and within the latter, is arranged a feed-pipe J, extending through the bottom of the cylinder A, to connect with the flexible pipe Jv', leading to a suitable source of watersupply to charge the water-leed pipe J. rlhe latter is provided with a segmental pipe J2, (see Figs. 5 and 15,) extending on both sides 1o ofthe pipe J and provided with dischargenozzles Ji", through which the water supplied by the pipe J can pass in small jets to the interior of the cylinder A, so as to agitato the pulp therewith. Frein the segmental pipes J2 also extend toward the large end of the cylinder A perforated pipes J, serving a similar purpose to the nozzles Ji", and thus the water passing through the said perforated pipes Ji agitates the pulp. Next to-the feed- 2o water pipe J, and toward the large end of the cylinder A, is arranged a gate K, mounted to slide vertically in suitable guideways K', arranged within the cylinder A and secured to the walls thereof. The gate K is adapted to be raised or lowered by means of a screw-rod K2, extending through the top ot the cylinder A and provided at the outer end with a handwheel K3 under the control of the operator.

ln the bottom of the cylinder A is termed o a pocket A?, in which is arranged a transversely-extending conveyor-screw L, secured on ashaft L, mounted to turn in suitable bearings, et which oneis on the inside of the cylinder A, as is plainly shown in Fig. 1, and the other is in the closed end ot the said cylinder. The shaft L extends to the outside and isprovided on this outer cnd with a ratchet-whccl U, engaged by a sp ring-pressed pawl L, fulcrulned en a lever N,`loosely j ournaled 4o on the shaft L. The lever N is connected with a rod N', connected with suitable machinery for imparting a forward and backward swinging motion to the said lever to rotate the conveyer-screw at intervals, so that the concentrates settling in the bottom of the cylinder A are fed toward the large end of the said cylinder, where they are discharged through a suitable opening provided n ear the large end and in the bottom of the conveyer- 5o pocket. The large end of the cylinder is provided with a door (l), as shown in Fig. S, through which door the cylinder can be cutered.

The operation is as follows: When the pitman G is set in motion, a rocking motion is given to the cylinder A, as previously dcscribed, and the pulp introduced from the hopper ll through the ilexible tube ll is thus constantly agitated by the rocking motion of 6o the cylinder, so that the heavy precious metals readily sett-lc to the bottom, while the tailings and water llow toward the small end of the cylinder to be discharged through the gate l, which is open sufficiently for this purpose. In order to increase the agitation of the pulp, water is injected into the pulp through the nozzles J5 and perforated pipes .l l, as previously described. At suitable intervals the shalt E is rotated so as to raise and lower the table l) to agitato the pulp longitudinally within the cylinder A. rlhe rotary motion of the conveyerscrew L centinues to move the concentrates to the larger end of the cylinder A, from which they are discharged through a suitable opening provided in the bottom of the conveyor-pocket at the large end of the cylinder. The screwgate l( serves the especial purpose of retaining all of the ore which carries mineral of value, but is so finely pulverized that it forms a scum which loats off on top ol the water, the gate being screwed down until the lower edge is constantly under water in the cylinder.

Having thus described our invention, we claim as new and desire to secure by Letters Patent" l. In au ore-concentrator, an impcrforate truncated conical cylinder mounted to rock axially and provided with a closed large end and an open small end for discharging the tailings,substantially as shown and described.

ln an ore-conccntrator, an axially-rocking imperlorate truncated conical cylinder4 arranged longitudinally and provided at its closed large end with a pulp-inlet, the small end ofthe said cylinder being open to ferm a tailings-discharge, substantially as shown and described.

3. In an ore-concentrator, the combination, with a table provided with longitudinal strips, of semicircular rockers mounted to rock transversely on the said strips, and a cylinder se cured on the said rockers for containing the pulp, substantially as shown and described.

l. In an orc-concentrator, the combination, with a table provided with longitudinal strips, of semicircular rockers mounted to rock transversely on the said strips, a cylinder secured on the said rockers for containing the pulp, and means, substantially as described, for vertically adjusting the tailings end of the said table, as set forth.

In an ore-concentrator, the combination, with a conical cylinder arranged longitudinally, of rockers carrying the said cylinder and adapted to rock transversely, a pulpinlet arranged on the large cndotf the said conical cylinder, and an adjustable gate held on the small open end of the said cylinder, substantially as shown and described.

6. ln an ore-coneentrator, the combination, with a conical cylinder arranged longitudinally,of rockers carrying the said cylinder and adapted to rock transversely, a pulpinlet arranged en thelarge endet the said conical cylinder, an adj ustable gate held on the small open end of the said cylinder, andawater-feed pipe arranged within the said cylinder and provided with discharge-nozzles, substantially as shown and described.

7. In an ore-coneentrator, the combination, with a conical cylinder arranged longitudinally, of rockers carrying the said cylinder and adapted to rock transversely, a pulpin- IIO let arranged on the large end of the said conical cylinder, an adjustable gate held on the small open end of the said cylinder, a waterfeed pipe arranged within the said cylinder and provided with discharge-nozzles, and perforated pipes extendinglongitudinally within the said cylinder and leading from the said feed-water pipe, substantially as shown and described.

8. In an ore-concentrator, the combination, with a conical cylinder mounted to rock and having a closed large end and an open small end, of a gate arranged within the said cylindex' between its ends, the said gate being iitted to slide vertically, substantially as shown and described.

9. In an ore-concentrator, the combination, with a conical cylinder mounted to rock and having a closed large end and an open small end, of a gate arranged within the said cylininder between its ends, the said gate being tted to slide vertically, and a screw extending down into the cylinder and engaging the gate to raise and lower it, as set forth.

10. In an ore-concentrator, the combination, with a conical cylinder arranged longitudinally and mounted to rock transversely, of a conveyer-screw extending longitudinally in the bottom of the said cylinder, substantially as shown and describe( l1. In an ore-concentrator, the combination, with a conical cylinder arranged longitudinally and mounted to rock transversely, of

a conveyer-screw extending longitudinally in the bottom of the said cylinder near thelarge end of the said cylinder, and means, substantially as described, for imparting an intermittent rotary mot-ion to the said conveyerscrew, as set forth.

'FRED MANUEL. KENNETH M. REEVES. Witnesses:

ANDREW F. WADE, WALLACE C. BIRKHEAD.