US954015A

US954015A - Magnetic separation of ore.

Info

Publication number: US954015A
Application number: US46507008A
Authority: US
Inventors: Quincy Bent
Original assignee: Individual
Current assignee: Individual
Priority date: 1908-11-30
Filing date: 1908-11-30
Publication date: 1910-04-05
Anticipated expiration: 1927-04-05

Description

Q. BENT. MAGNETIC SEPARATION OF ORE.

APPLICATION FILED NOV. 30, 1908.

. Patented Apr. 5, 1910,

o 0N 9 6 a., 4 j 1 H 1 v 1 i m. a 3 #.ZIIW. 9, l y l0 7, F 7 8l |z|1rH mm ONM a 1 w o0 z 1 7 j ,l

INVENTOR ATTORN @um YL/Q WITNESSES Q. BENI. MAGNBTIG SEPARATION 0F ons.

APPLIUATXON FILED HOV. 30, 1908. 954,()15 Patented Apr. i5, 1910.

2 SHEETS-SHEET 2.

WITNESSES 'UNITED sTATEs PATENT oEETcE.

QUINCY BENT, OF LEBANON, PENN'SiYLVAN'IA.`

MAGNETIC SEPARATION 0F ORE.

Spcoieation of Letters Patent.

Patented Apr. 5, 1910.

Application med November 30, 1908. Serial No. V465,070.

ration of Ore, of which the following is aV full, clear, and exact description.

The object of my invention is to provide a simple and eiicient process of magnetic- :111%7 separating pulverized ore.

Jy invention, as generally stated, consists in causing a stream of liquid carrying the ore to flow downwardl adjacent a suitable magnet, and magnetica ly drawing the-magnetic particles of the ore laterally away from said stream and into a body of 1i uid extending laterally fromv and connecte to the stream, while the tailings descend with or through the stream of water.

The invention further consists in mechanically advancing the magnetic concentrates through the laterally extending body of liquid, and into an u wardly flowing stream of liquid through Wliich the magnetic concent-rates descend, while the tailings in suspension are carried upwardly by the upwardly flowing stream.

The invention consists in the novel process which will be hereinafter fully described and claimed.

Reference may be had to my application for a patent for improvement in magnetic ore separating apparatus, filed November 30, 1908, Ser. No. 465,071.

In the drawings -Figure 1 is a plan View of an ore separating apparatus adapted for use in connection with my improved process.

Fig. 2 is a longitudinal, vertical section thereof. Fig. 3 is a transverse, vertical section of the apparatus, as 'on the line 3-3 of Fig. 2. Fig. 4 is a horizontal section as on the line Li--liof Fi 2.

I shall first describe a suitable a paratus by means of which my improve process may be performed. l t

i designates a vertically-arranged, Waterreceiving settling chamber, and 6 designates a vertically-arranged water-receivin washn ing chamber. The chambers 5 and are located a sli ht distance apart, and they are connected y a c linder 7 forming a Waterpassageway S w ich extends between and communicates with the chambers and 6, the passageway 8 being located above the bottoms of said chambers.

Surrounding the cylinder 7 and passageway 8 therein is a solenoid 9 which is cated adjacent the chamber 5. This solenoid 9 also surrounds a magnetic pole piece 10, 60 which extends part Way around and rests upon the cylinder 7. Electric current is supplied to the solenoid 9 in-the usual manner, to produce the magnetic action thereof.

-Extending centrally through the passage- Way 8 and also through the chambers 5 and 6, and beyond the walls thereof, is a shaft 1l which is mounted to rotat'e in

suitable bearings

12 and 13 secured to the outer walls of the chambers 5 and 6 respectively. The 70

bearings

12 and 13 are rovlded with suitable stuing boxes 14 an 15 res ectively, to prevent leakage of waterfrom tlie chambers 5 and 6 through the openings through which the shaft 11 extends. 75

The shaft 11 is provided with a screwconveyer 16 which is located within and extends the entire length of the passageway 8, the pur ose of the screw 16 being to mechamcal y advance the magnetic concen- B0` trates throu h the passageway 8 in a direction away rom the chamber 5 toward the chamber 6. One end of the shaft 11 is prov vided with a .suitable pulley 17 by means of which the shaft und therewith the screw conveyor 16 may be rotated.

The upper dportion of the settling chamber 5 is provide with an inlet passageway 18' leading from a compartment 19 which` receives the water carrying the ore from a feed pipe 2 0. The interior'of the settling cham- )er 5 is provided' with a ballie wall 21 which extends transversely of Athe chamber and 1s located between the inlet o ening I8 thereof and the passageway 8. e lower portion 915 of the^ chamber 5 is provided with a artition 22 xtending transversely of the c amber 5 be ow the passageway 8, "and dividing the lower portion of said chamber.

The lqwer portionf the chamber 5 Iis 100 provided with two

outlet openings

23 and 24, one located on one side and the other on theother side of the partition 22, and leading from the

o enings

28 and 24 are pi es 25 and 42G whic may extend to any sulla )le 105 point of discharge.

The upper portion of the chamber ti is provided with an overflow or outlet opening 27 which communicates with one cnd of a pipe 28, the other end of which. may ex- 11o tend to any suitable point of discharge. l

The lower portion or bottom of th(` chambei' G is provided with an inlet opening 29 which communicates with a downwardly ex tending short pi e on the lower end of which is secure a vortex water-admission device 31, com rising a central opening or chamber 32 ang a circular chamber 33 surrounding the central opening 32. The wall between the chamber 33 and the central opening 32 is provided with tan lentiallyarranged o Jenin 1s 345 through which Water ma pass rom tlc chamber 33 to the centra opening 32, and the chamber 33 is provided with a tan entially-arranged waterinlet opening 35 w iereby when water is sup plied to the device 31 through the opening 35, the Water will be given a rotating motion during its passage through the chamber 33 and openings 34 into the central opening 32, wherein the water continues to rotate as it passes through the inlet o ening 29 of the washing chamber 6. The ower portion of the central opening 32 communicates with an o tlet pipe 36 for the water, which pipe may glead to any suitable point of discharge.

I s mll now describe my improvedprocess as performed with the aid ofthe apparatus just described.

lVatertcarrying the crushed or pulverized ore is supplied to the compartment 19 through the feed pipe 20 from any suitable source, and another stream of water is Supplied to the vortex admission device 31 through vthe inlet opening 35 therein; and power is supplied to the pulle 17 to rotate the shaft 11 and therewith t e screw-conveyor 16, and electric current is supplied to thc solenoid t). The main bod f of the stream of water supplied to t ie device iiows upwardly through the Washing chmul ber 6, and .luring its upward flow through said chamber the water continues the rotating motion given to it by the vortex device 31 until the water overiiows at 27 and passes from. the apparatus through the )ipe 28 to a suitable oint of discharge. art of the stream ci] Water supplied -to the device 31 however, flows downwardly and out through the pipe B. The Stream of water carrying the ore arifd introduced ato the compartment 19 through the feed ipe`20 Hows from said,

compartment throng the inlet opening 18 to the up er portion of the settlin chamber 5, then ownwardly through sai chan'ber und out through the pipes 25 and 26 leading from the lower portion thereof.

A part of the stream of water introduced through the` feed pipe 20 may pass through the passageway 8 and a partof the stream of water introduced through the vortex device 31 may also pass through the asseveway 8. This, however, is controllo by t ie relative forces of the two streams. It will be observed; that the passageway 8 is located below the water level in each chamber 5 and 6. As the crushed or pulverized ore descends through the settling chamber 5 with or through the stream of water, the magnetic particles are drawn laterally from the chamber 5 and into the passa cway 8 under the magnetic influence of t e solenoid 9, while the tailins are permitted to descend to the bottom o the chamber 5 and are carricd oft to any suitable point of discharge through the pipes 25 and 26. As the stream of Water carrying the ore enters `the up er portion of the settling chamber 5, it stri es the battle wall 21 which causes the heavy tailings to descend to the pipe 25 while the lighter or middlings, descend to the pipe 26. The magnetic concentrates are drawn into the passageway 8 under the influence of the solenoid 9 and they are mechanically advanced through said assageway from the solenoid and discharges into the upwardly flowing stream of water and into the Washing chamber 6 by the action of the screwconveyer 16. T 1e magnetic concentrates descend through this upwardly flowing stream of water while said stream carries upwardly and discharges from the overflow 27 and pipe 28 any small non-magnetic particlcs in suspension in the water that may pass through the passageway 8, thus effecting a final and complete Washing of the magneto concentrates which descend from the. upwardly flowing stream of water` through the lower portion of the central o ening of the vortex device 31 and out t rough the pipe 36 which leads to any suitable point of discharge. The magnetic 10o conconirates` :1s` they pass through the pas` sageivay S, are Iliohirized. under the iniuence of the solenoid 9, which causes the particles to assemble themselves in groups, thus causing them to descend through the upwardly fiowing stream more rapidly than they would descend in their separated condition. This ra iid descent of the magnetic concentrates ena les me to cause the stream of Water to flow upwardl chamber 6` very rapidly ,Without carrying with it any ov the magnetic concentrates, therapid flow of the stream insuring a thorough Washing of the concentrates.

Byrotating the stream of Water during its upward llow through the Washing chamber 6, it is caused to not upon the descending concentrates in a substantially uniform manner throughout the washing chamber.

When desirable, I make the force of thestream Howing upwardly through the chamber 6 strong enou h to cause a slight. water current to How t rough the passageway 8r toward the settling chamber 5, which tends torepel any nommagnetic material which might be carried from the chamber t5 into the passageway 8 mechanically with the concentrates.

l. The process of separating pulveriz'ed 130 through the 110 lll) ore, ronsisting in causing a stream of liquid oarrying the ore to l'lo'w downwardly, inagi-y netioally drawing' magnetic particles laterally from Said Stream and into a body of liquid extending laterally from and con neemt] to said Stream while the tailings descend with said Stream.A nieehanieally advancing the magnetic concentrates through Said body o' liquid and into an upwardly tlowing stream ot' liquid. and permitting the -niagnetie eoneentrates` to descend through said upwardly tlowinf stream while tailings in `nuspension are farried upwardly thereby. 2. The process of separating pulverized ore, consisting in causing a lStream of liquid earryiug the ore to flow downwardly, 1nagnettieally Adrawing magnetic particles laterally from said stream and into a body of liquid extending laterally from and connected to said streain while the tailings descend with sait strewn, mechanically advancing the magnetic concentrates through Said bodyr of liquid and into an upwardly iowing' and rotating Stream of liquid7 and permitting the magnetic concentrates to deseend through Said upwardly flowing stream while tailings in suspension are carried upwardly thereby.

3. The proceas of Separating pulverized ore, eoi'isinting in causing a stream of liquid carrying the ore to flow downwardly, inagnetically drawing magnetic particles laterd ally from Said stream Iand into a body of liquid extending laterally from and conneeted tio Said Stream while the tailings de seend with yaid 4dream, nleehanically :id-- vancing the magnetir. eonrentrutes through said body of liquid and into an upwardly flowing Stream of liquid, permittinga the ma netie concentration` to descend through sai upwardly flowing stream while tailings in Suspension are carried upwardly thereby. and withdrawn] the magnetic eoueeint.ratenA from the upwar( ly flowing `@tire-.un o'l' liquid` 4. The process of Separating pulverized ore, consisting in fauiug a strean'i of liquid Carrying the creto tlow dowuwarill'y mag netically drawing magneti@ partirltw latervr ally from said stream and into a body ot' liquid extending laterally from and con neeted to said stream wliiletlie tailings descend with said stream, permittingr the inagnetic concentrates to descend through Said upwardly tiowing stre-ain while tailiuge. in suspension are carried upwardly thereby. mechanically advancing the magnetic eonvv contratos through Said body of liquid'nnd into an upwardly (lowing` and rotating stream of liquid, and withdrawinnr the magnotie` concentrates from the ulilwardly llowin and rotating stream of liquid.

n testimony whereof. l hare hereunto alixed my signature.

QUINCY BENT.

lVitinesses GRANT l/VEIDMAN, CLEMENT G. Siurrn.