US427551A

US427551A - Ore-concentrator

Info

Publication number: US427551A
Authority: US
Publication date: 1890-05-13
Anticipated expiration: 1907-05-13

Description

( No Model.) s Sheets-Sheet 1.

S. L. BURKE.

ORE GONGENTRATOR.

No. 427,551. Patented May 13, 1890.

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(No Model.) 8 Sheets-Shee n 2.

SCL. BURKE.

- ORE GONOENTRATOR. No. 427,551. Patented May'ls, 1890.

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(No Model.) s Sheets-Sheet 3.

S. L. BURKE. ORE GONGBNTRATOR.

No; 427,551. Patented May 13, 1890.

(No Model.) 8 Sheets-Sheet 5.

S. L. BURKE.

ORE OONGENTRATOR.

N0. 427,551. Patented May 18, 1890.

No Model.) 8 Sheets-Sheet e. .S. L. BURKE.

v ORE GONGENTRATOR. No. 427,551. Patented May 13, 1890.

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(No Model.) 8 Sheets-Sheet 7. S. L. BURKE.

ORB OONGENTRYATOR.

Patented May 13, 1890.

(No Model.) 8'SheetsSheet a.

S. L. BURKE. ORB GONOENTRATOR.

Patented May 13, 1890. E 12.

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UNITED STATES PATENT OFFICE.

STEPIIEN L. BURKE, OF ST. LOUIS, MISSOURI, ASSIGNOR OF FIVE-SIXTHS, BY DIRECT AND MESNE ASSIGNMENTS, TO FRANCIS M. JENKS, WILLIAM A. .IENKS, JOHN C. NIAL, CHARLES L. MCDONALD, ROBERT CARRIOK, AND ISRAEL E. RUSSELL, ALL OF SAME PLACE, AND JOHN SOIIAFFER, OF KIRK- woon, MISSOURI.

SPECIFICATION forming part of Letters Patent No. 427,551, dated May 13, 1890.

' Application filed July 28, 1888. Serial No. 281,334. (No model.)

a pulverizer by an elevator, the machine be-' ing broken away at the top for want of space. Fig. 2 is a similar view of the top portion of the machine. Figs. 3 and 4, respectively, represent front and rear elevations of the machine. Fig. 5 represents a plan view of the same. Fig. 6 represents a vertical section on the line 7 7 of Fig. 5. Fig. 7 is a vertical section on the line 8 8 of Fig. 6. Fig. 8 is a vertical transverse section of the concentrator. Fig. 9 is a vertical section on the lines 10 10 of Fig. 10. Fig. 10 is a perspective view of one of the collocting-pockets of the concentrator. Fig. 11 is a perspective View of the drawerbelowsaid pocket. Fig. 12 is a detail sectional View of the means for regulating the air-cue rents to the hoppers of the concentrator. Fig. 13 is a detail view of the device for adjusting the inclination of the sieve at top of the c011- centrator.

In practice the ore-concentrator is connected to an ore-pulverizer by an elevator. Both pulverizer andelevator may be of common construction, as they form no part of the present invention, but are preferably constructed in the manner indicated in the drawings.

Referring to the drawings by letter, K designates the casin g of the concentrator, of general rectangular form and having the end walls 75 and side walls 7.5 as shown in Fig. 4.

I designates a chute or spout, which deliv- 5 ers the pulverized ore from the elevator II that connects the pulverizer and concentrator. The chute I deposits the pulverized ore upon the upper end of an inclined sieve or screen J, secured in the upper end of the casing K and divided into portions jj, having meshes of different degrees of fineness, the finer-meshed screen being, of course, above. The tail of the sieve J delivers into a hopper Q, which is the highest of a series of hoppers. The screen j delivers to a similar series of hoppers m m m &c., and the highest screen jdelivers to a series of vibrating pockets, which pockets and hoppers are hereinafter described, and the operation thereof explained. The sieve J may have its inclination adj usted by means of the slotted bar j" and setscrew f, Figs. 8 and 13, in the usual manner. From the screenj the finer pulverized ore descends upon the ehutej secured in the easing K", into the highest pocket K of the series, all the pockets being similar. The said pocket has a rectangular base and is constructed as follows: The sides and ends of the pocket and the upper edges of the said ends are inclined downward from the delivery side of the pocket, as shown in Fig. 10.

'The bottom of the pocket inclines downward and inward from its ends to a central opening, which is closed by a slide that moves in suitable grooves in the sides of the pocket. Below said opening is formed a receivingchamber k open at bottom, which can be closed by a slide 7c, similar to the former slide and moving in similar grooves. These slides have their outer ends turned downward to form handles.

7c is a chute secured to the receiving side of the pocket, and Ir? is a similar chute secured to the delivery side thereof, to carry the ore material over said pocket to the next below. The receiving sides of the pockets are situated alternately on opposite sides of the casing, and secured to the latter above each chute 7c are directing-plates 7.2 that convey material from the chute j to the highest pocket K, and from each pocket to the next below. The pockets are vibrated or reciprocated lengthwise by the following means:

Each pocket is hung by straps h te the adj acent wall of the casing K L is a vertical rod secured at the points Z Z to the corresponding ends of the pockets K, K, and K Fig. 7, and pivoted at a suitable point Z to the upper end of a vertical rod L, the lower end of which is secured to the shaker or' shoe of the pulverizer with which the concentrator is connected, so that the motion of said shaker is imparted to the pockets. As the material passes down and the pockets reciprocate, the coarser particles caught by each will settle and accumulate therein till it is full, when the finer particles will pass over the pocket, the plate 70 and chutes 70 lo to the next pocket below, so that each pocket will accumulate finer particles than the one next above, thus giving a number of grades of pulverized ore, the material that passes over the lowest pocket escaping through an opening 70 in the lower end of the casing K and forming the finest grade of ore.

To withdraw the material from the pockets, drawers 10 are fitted in suitable openings in the casing below the slides 70, so that by drawing outward a slide 70 the corresponding receiving-chamber 70 may be filled, and by closing said slide and opening the corresponding slide 10 the contents of said chamber may be discharged into the drawer 7x3 below, from whence the material is removed in the usual manner. The material that passes through the screen j descends into the highest hopper of the series M M to the inclined perforated ore-bed N therebelow, which is separated from the next lower hopper by a transverse partition, Fig. 6, forming an air-chamber between said ore-bed and hopper.

12 n are inclined gates secured to the easing near to and above the lower ends of the ore-beds N N N of the series, and n n are chutes secured in the mouths of the hoppers below said gates, which stand outward from the ore-beds, leaving a discharge space or opening between the two, which opening is on the side of the concentrator opposite the pulverizer. At the opposite side the air-chambers below the ore-beds are provided with openings, into which enter the adjacent ends of air-pipes 0 0 that extend froma blower O, operated from the main shaft of the pulverizer. The air entering said pipes and chambers passes through-the perforations in the ore-beds in the direction of the arrows 0' and drives the lighter particles of the ore material from said beds over the gates at n into the compartment P, whence they fall out of the casing. The heavier particles pass between the lower ends of the ore-beds and the adjacent gates, (see Fig. 6,) and are directed by the chutes n n to the next lower hopper,

The coarsest material from the sieve lighter particles are blown into the compartment 1. By means of set-screws 0 and engaging nuts set into a suitable part of the easing, Fig. 12, the flexible portions of the pipes that convey air to the ore-beds of the concentrator may be compressed, and the currents thus regulated.

Having described my invention, I claim- 1. In an ore-concentrator, the combination, with a reciprocating pocket arranged to receive pulverized material from above and having an opening in its bottom, of a receivin g-chamber attached to the pocket below said opening and slides to respectively close the top and bottom of said receiving-chamber, substantially as specified.

2. In an ore-concentrator, the combination, with the casing K of a verticalseries of similar reciprocating pockets K K K hung to the casing by the straps k and provided with openings in their bottoms, the receivingchutes k, secured to the pockets on one side, the delivery-chutes 70 secured thereto on the opposite side, the receiving-chambers k below the openings in the bottoms of the pockets, the slides k 10 the directing-plates 70 and the drawers 70 below the slides 7e substantially as specified.

3. In an ore-concentrator, the combination, with the rectangular casing having the discharge-opening k at its lower end, the inclined adjustable sieve above the casing and the chute below said sieve, of the vertical series of reciprocating pockets hung within the casing and having openings in their bottoms, the receiving-chutes and delivering-chutes at,- tached to said pockets, the directing-plates between each adjacent delivering and receiving chute, the receiving-chambers below and attached to the pockets, the slides to respectively close the tops and bottoms of said chambers, and the drawers below the pockets, substantially as specified.

Witness my hand this 30th day of June,.