US940266A - Magnetic separator. - Google Patents

Description

W. B. MOORE.

MAGNETIC SEPARATOR. APPLICATION FILBD SEPT. z3, 1907,

Patented 1 Imf.1f's,19o9.v

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@0r-nays ffy WALTER B. MOORE, or WA'LLA WALLA, wiisirineroiin aangaan.

Specification of Letters Patent.

MAGNETIC SEPARATOR.

Patented Nov. .16, y1909.

Appiica'tion ined september 23, i907. seriai No. 394,240. 1 l

l l'e'gfi f'knoWn't-hat I, WALTER B. MOORE, a citizen ofthe United' States of America, and aresidentofthev city of llf'alla lValla, iii the fcloiinty ofWalla `Walla and-'State of Tash- .ington, have invented certain newand useful y :inproveinents Ain `Magnetic Separators, of `which the'following isa specification. "f: My .invent-ion" has *for itspriinary object provision of an apparatus for treating materials containing Vnietals which are susfoeptible'to magnetic action, and separating fsuitable Amagnetic means the magnetic 'particles from the non-magnetic particles, s iicnA magnetic nieans when operating, rotatl ,iiii'gat as'uiii'cient'rate of speed to by centrif ugal action 'throw the non-magnetic particles outwardly therefrom.4 Further objects will be set forth as ,the 20.11description progresses and those features of -construction upon which I desire protection, .succinctly defined iii the appended-claims.

y Referring now to the accompanying drawing in which like nuinerals of reference indicate `like-parts throughout: Figure'l is a vertical section ofan apparatus constructed vin accordance with my invention, and Fig. 2 is a section taken on line 2 2 thereof.

In carrying out iny 'invention I provide a magnetic *separating nieans conveniently consisting of a bi-.polar electro-magnet l, and a shield 2 in the forni of a 4water proof casing having a conical upper `portion 2. Magnet is secured to a vertical shaft 3 whose lower portion is rotatably supported iiiv a bearing a; The shieldQ rests on bearing l and is supported for rotation at its upper portion in any' desired manner.

5 fleference numeral 5 indicates a suitable to shield 2 so as to rotate. therewith and be- 'fing spaced therefrom to provide a chamber, jas 6, for the-materials to be separated. .Vall 5 has a i'iai'ed upper portion 7 disposed opposite the conical upper portion of shield 2, so as to serve therewith as a hopper 6 for chamber 6 in which the inaterials are placed as will be hereinafter described. A partition 8 projects upwardly into the lower portion of chamber (i, thereby. dividing the saine and providing' passages 9, 9 communicating with 'receiving lioppers 10, l0 for the `separatedmagnetic and non-inagnetic nia terials respectively. These hoppers are arranged vonewitliin the other, being spaced apart by suit-able spacing blocks l1, and procdntinuous wall'securedby arms 5 and 5v through passage 9 reason ,of wall 5 rotating, the non-magnetic* vided with suitable discharge chutes 15.'

Bearing is fixed to spiderfarins l2'secured to partitionfS. Hopper l0', as nowl considered, forins the bottoniw'all of a tank B `f in which the parts hereinbefore described v are arranged.

Reference numeral 1l indicates'a suitable 1 *Y stand in which casing 112 is supported,

In operation,v assuming that the tank has been titled with water, power is applied, as

`by belts (not shown) topulleys 16 and 17 to rotateshaft 3 with its'niagnet and shield 2 inrelatively opposite directions, theshaft 3 being rotated at a greater speed than the shield 2, then the material is fed into hopf per 6 with water.' This lmaterial falls into the swirling water in chaniber (i and by centrifugal action the non-magnetic particles l are thrown. outwardly against wall 5, while the magnetic particles attracted by inagiie't l are caused to cling to shield 2,-aiid by reason of said magnet rotating at a` greater speed than said shield; the niagnetic'parti cles clinging to shield 2 inoveend over end in a staggering fashion, they gradually working downwardly by gravity and ,finally walking across thebottoinwall of shield 2 until they are at a neutral point betweeiithe poles of magnet l, when they drop into hopper 10. The noii-inagnetic particles pass into hopper 10. By

inagnetic inateiial and said wall, as contradistinguished from a structure wherein the i inaterial is inoved oi'er the face of a stationary wall, thereby preventing agitation of the inaterial thrown outwardly and insuring of a more perfect separation, The top of tank 13 is sufficiently below the upper poi'- tion of hopper G to perinit of surplus water flowing thereover.

Having thus described niy invention, what I claini as new, and desire to secure by Letters Patent of the United States of Ainerica,'is:-

1. In a magnetic separator, the conibination of a tank, a rotating magnetic means in said tank, and a wall fixed to rotate with said magnetic means and being spaced therefrom to provide a passage-way for the Inaterial to be separated, the upper portion of said wall being flared outwardly. Q

2. In a magnetic separator the combinaa rotating around saiducasing and being spaced therelfromto provide a passage-way forthe ma :i terialsto. be separated, means for vfeeding- `;the materials into the passage-way rovided 15.

between said'casing and said wal means connecting sa'idwall to said casing for rotation therewith, and magneticY means supported in said casing for rotation independeirtly thereof. t 4. In a magnetic separator, a tank, a ro- 'tatable magnetic means y.for catching the magnetic particles, and a vertically arranged rotatably supported wall surrounding said magnetic means having its lower end spaced from the bottom wall of said tank and'being spaced from said magnetic means to provide 'a passage-Way for the materials to be sepa'- `rated, said magnetic means comprising a .magnet and a shield therefor each supported' for independent rotation.

5. In a magnetic separator, a tank, a rol tatably supported magneticmeans for catching the magneticl particles, a rotatably supported wall surrounding said magnetic means andbeing spaced therefrom 'to provide a passage-way lfor reception of thematerials to be separated, the upper portion of said wall being flared to form a hopper, as specified. f v

6. In a magnetic separator, a tank, a rotata'blgy supported magnet, a rotatablysup;

ported shield in which said magnet is arr" ranged, a. Wall surrounding said shield and y being secured thereto, said wall being spaced t f from, said shield `to-providea chamber foi" reception of th'e materials to'be separated,

and means forming separate passages leading from the lower portion of said chamber. for the separatedl magnetic and non-magnetic materials. l, A, 7. In a magnetic se arator, a rotatably' .supported magnet, a s eld in which saidl magnet is arranged supported for i'otation'll independent. thereof, a. wall` surroundin said hield and being secured thereto, sai

55 i. wall being spaced from. said: lshield to-pro vide a chamber for` reception'ofV theJriate-v rials to be separated, and' a partition vprol jectingf upwardly'i'nto' the lower portion of A said chamber, whereby separate passages for the separated materials are provlded.

, 8. ,In a magnetic separatona magnetLa shield inclosing the saine, said magnet and shieldbeing supported for independent rotation, a wall secured to said shieldand be-y ing spaced therefrom thereby providing .av 'chamber for reteeption of the materials to be separated," a .tank'adaptedl to contain water in which said magnet,' shield and Wall are arranged, alhopper arranged to receive the separated. magnetic particles, and a partition extending from said hopper upwardly into 'said chamber, for the purpose'sp'ecified.

Signed at Seattle, WVashingto'n this 12th day of September 1907. p

WALTER B. MOORE..

Witnesses:

FRANK E. ADAMS, JOHN IV. FILKINS.

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