US1519019A

US1519019A - Separator and classifier

Info

Publication number: US1519019A
Application number: US678070A
Authority: US
Inventors: Samuel H Boylan
Original assignee: ORE RECLAMATION Co
Current assignee: ORE RECLAMATION Co
Priority date: 1923-12-01
Filing date: 1923-12-01
Publication date: 1924-12-09
Anticipated expiration: 1941-12-09

Description

Dec. 9, 1924- S. H. BOYLAN SEPARATOR AND CLASSIFIER Filed Dec. '1, 1925 S'Sheet's-Sheet 41 Dec. 9, 1924.- 1,519,019

' s. H. BOYLAN SEPARA'IOR AND CLAS SIFIER a i hm 1 3144mm 'hmiMit mm Patented Dec. 9, 1924.

UNITED STATES PATENT OFFICE.'

.SAMUEL H. BOYLAN, 0F JOPLIN, MISSOURI, ASSIGNO'R TO THE ORE BECLAMATION COMPANY, OF BAXTER SPRINGS, KANSAS, A CORPORATION OF KANSAS.

SEPARATOR AND CLASSIFIER.

Application filed December T 0 all whom it may concern:

Be it known that I, SAMUEL H. BoYLAN, a citizen of the United States, residing at Joplin, in the county of Jasper and State of Missouri, have invented certain new and useful Improvements in Separatorsand Classifiers, of which the following is a specification.

This invention relates to separators and classifiers for use in the treatment of crushed ore bearing rock, and more particularly to a separator or classifier particularly adapted for use in connection with ore bearing rock containing colloids or colloidal slimes.

It is well known in the art that the presence of colloidal matter in ore bodies renders the separation of the mineral portion from the gangue very difficult and the colloidal matter must be largely dissolved and eliminated before any reasonable classification can be accomplished.

An object of the present invention is the provision of a compact machine comprising a practical separator for eliminating the colloidal slimes in a series of operations, simul taneously classifying the resultant products. This result is preferably accomplished by directing the pulp of crushed rock and water into a receptacle provided with an overflow at the top for the bulk of the water fines and slimes, said receptacle being provided with an automatically operated valve at the bottom for the discharge of coarse material and being further provided with a perforated ring for the introduction of clear hydraulic water that forces its way upwardly through the receptacle to facilitate the removal of the slimes and colloids in the overflow. The coarse material passes through the automatic valve at the bottom of the receptacle into a tank bath to remove any colloidal slimes that may adhere to the coarse particles.

A further object of the invention is the provision of a classifying receptacle of efficient construction in which the feed material enters the receptacle at one of the shorter sides supported on a pivot fixed to a stationary frame where the bed of the mate rial is most shallow. The material flows the length of the material bed, emptying at the overflow on the opposite side which is automatically raised and lowered by the weight of the material within the receptacle.

A further object of the invention is the 1, 1923. Serial No. 678,070.

provision of a novel construction for the in: troduction of upwardly moving water within the downwardly moving bedded materialin the classifying receptacle, the supply of water being automatically decreased or increased in amount as required to keep the fines and colloidal slimes in suspension.

A further object of the invention is the provision of improved means'for washing the coarse material after it is discharged from the classifier to remove any fines or colloidal slimes that may adhere thereto.

In the accompanying drawings, I have shown one embodiment of the invention. In this showing:

Figure 1 is a side elevation,

Figure 2 is a central vertical longitudina sectional view,

Figure 3 is an end elevation,

Figure 4 is avertical sectional View on line $41; of Figure 1,

Figure 5 is a horizontal sectional view on line 55 of Figure 1, and, I

Figure 6 is a detail view of a portion of the water feeding mechanism.

Referring to the drawings, the reference numeral 1 designates the frame of themachine consisting of suitable uprights connected to each other at their upper ends by means of longitudinal members 2... The classifying receptacle consists of a fl'llStI'O-COIllr cal shaped tank or container 3, one end of which is PlXOfGCl in the frame, as at A suspension rod 5 is connected to the sides of the tank adjacent the opposite end and this suspension rod is supported by a pivoted lever 6. The lever is provided with a fulcrum 7, carried by the frame. Theopposite end of the lever extends beyond the frame and is adapted to receive a. counter weight 8, to balance the receptacle of the classifier and regulate the tipping movement thereof. A connecting rod 9 is secured to the lever 6. As shown, the lever is provided with a plurality of openings 10 topermit change of position of the connecting rod. The lower end of the connecting rod is connected to a discharge valve lever 11 which is pivoted, as at 12, on an arm or bracket 13, carried by the bottom of the receptacle. As shown, the receptacle is provided with a closure plate 1.4 at the bottom having an opening therein and this opening is provided with a valve seat. The discharge valve level: 11 carries a pin 16 and a hollow conical shaped valve 17 is loosely mounted on this pin and is adapted to engage the valve seat 15.

The water supply to the classifier is dc livered through a pipe or flexible hose 18 to a valve 19'. An outlet pipe 20 is connected to this valve and extends into the receptacle. The inner end of this pipe is formed in a ring 21- and provided with a plurality of perforations The valve 19 is provided with an operating lever 23 and a vertically extending arm 24: is connected to this lever. The opposite end of the arm is connected to a substantially horizontal lever 25 which is pivoted at 26 to an arm or bracket 27 carried by the frame. The other end of the lever is connected to the receptacle, as at 28, to regulate the supply of water by the angular position of the re cep'tacle. A tank 29 is arranged beneath the receptacle 3. The tank is mounted on a shaft 30 to permit it to be tilted to any desired angle. Standards 31 are arranged adjacent the discharge end of the tank and these standards are provided with slots 32. The tank is provided with side bars 33 extending beyond the outlet end and an adjusting member 34- is secured to the side bars and arranged within the slots to permit regulation of the height of the discharge end. Sprocket wheels 35- are arranged on suitable shafts Within the tank and an endless chain 36 passes over these :sprocket wheels. Blades 37 are arranged at suitable intervals on the chain. The wall at the inlet end of the tank is formed of a plurality of removable bars 38, by means of which the height of the body of water within the tank may be regulated.

In operation, the crushed ores are fed to the classifier at the forward end and fiow over the inclined bottom forming bed. The heavier, coarse particles settle to the bottom in the usual manner and the fines and colloidal slimes form on the top of the bed. The fines and colloidal slimes are keptin a state of suspension by the water, entering the classifier through the perforated ring 21. The heavy coarse material in the classifier tends to swing the classifier about its pivot in a clockwise direction and when the Weight of the nrfaterial is sufiicient to raise the counter weight 8, the lever 6 is swung on its pivot, opening the valve 17 through the connecting rod 9 and the valve discharge lever 11. This permits the coarse particles to fall into the dewatering tank. The lever 25, being connected to theclassifier and pivoted on the frame, is moved by the movement of the'classifier to regulate the supply of water to the perforated ring.

I have found that where ores containing colloids or colloidal slimes are passed through a classifier, the slimes are not entirely removed, and the tie-watering tank is employed for-thepurposesof washing the coarse particles of the ore and removing the colloidal slimes that still adhere to the coarse particles after they have passed through the classifier. The ore iscarried upwardly on the chain 36 by the blades37 and washed and cleaned before delivery from the dewatering tank.

The colloidal slimes and. other fines removed in the classifier overflow at the top and are conveyed to a launder or other apparatus for further treatment. Similarly, the fines and colloidal slimes overflowing the wall formed by the removable bars 38 are conveyed to a launder. The dewatering tank is supplied with water fromthe classifier and' if necessary, additional water may be supplied from any desired source.

It is to be understood that the form of my invention herewith shown and described is to be taken as a preferred example of the same, and that various changes in the shape, size, and arrangement of parts may be resorted to without departing from the spirit of the invention or the scope of the subjoined claims.

I claim 1. In an ore classifier, a frame, an inverted frustro-conical shaped receptacle pivotally connected at its top to one end of said frame, a lever pivoted on-said frame and connected to said receptacle at a point remote from the pivot of the receptacle, a counter weight carried by said lever, valve arranged in the bottom of said re'- ceptacle, connections between said valve and said lever, means for delivering water to said receptacle, and means controlled by the position of said receptacle to regulate the flow of water through said delivering means.

2.5111 an ore classifier, a frame,- an verted frustro-conical shaped receptacle pivotally connected at its top to one end of said frame, a lever pivoted on said frame and connected to said receptacle at a point remote from the pivot of the receptacle, a counter weight carried by said lever, a. valve arranged in the bottom of said re ceptacl'e, a discharge lever pivotally mounted on said receptacle and connected to said valve, a rod connecting said discharge'lever to said first mentioned lever, means for delivering water to said receptacle, and means controlled by the position of said receptacle to "regulate the flow of water through said delivering means.

3. In an ore classifier, a frame. an inverted frustro-conical shaped receptacle pivotally connected at its top to one end of said frame, a lever pivoted on said frame and connected to said receptacle at a point remote from the pivot of the receptacle, a counter weight carried by said lever, a valve arranged in the bottom of said receptacleQa discharge its lever p-ivotally mounted on said receptacle and connected to said valve, a rod connecting said discharge lever to said first mentioned lever, a perforated ring arranged in said receptacle and connected to a supply of Water, a valve arranged in said connection, and control means for said valve connected to said receptacle to regulate the flow of Water by the position of said receptacle.

4. I11 an ore classifier, a frame, an inverted frustro-conical shaped receptacle pivotally connected at its top to one end of said frame, a lever pivoted on said frame and connected to said receptacle at a point remote from the pivot of the receptacle, a counter Weight carried by said lever, a valve arranged in the bottom of said receptacle, a discharge lever pivotally mounted on said receptacle and connected to said valve, a rod connecting said discharge lever to said first mentioned lever, a perforated ring arranged in said receptacle and connected to a supply of Water, a valve arranged in said connection, a valve operating lever connected thereto, a lever pivotally mounted on said frame and connected to said receptacle, and connections between said lever and said valve operating lever.

In testimony whereof, I afiix my signa ture in presence of two Witnesses.

SAMUEL H. BOYLAN. Witnesses:

EUNIOE H. PLUMNER, GERTRUDE MITCHELL.