US2144185A - Ore crusher - Google Patents

Description

E. T. HAMBLIN Jan. 17,. 1939.

ORE GRUS HER Filed April 6, 1936 3' Sheets-Sheet 2 /NVENTO/2 v E. 7. HAMBL/N 0v 7 9% ATTY6.

Jan. 17, 1959.

E T. HAMBLIN ORE CRUSHER Filed April 6, 1936 3 Sheets-Sheet 5 f. T. HAMBLIN -wwLfi R NQ 0 M 9% m S W x% Qxx l @x hfix .e% N g \Q Q m6 N\\ g v ho km ma Q0 k%.

furtheriobject" or my nvenubnas tdptovide museum. 17, 1939 crushers andfanfobject or hiv ihventionisto provide ore'crusher 'whiclfwill operate at high me t WNW"? i e r s Pr s t n existence. 1 u

more crusherhavinga cylindrical drumand a crushing wheel therewithin; the "ore drawn out 10 thesideof' the drum andb eingf cmsned between the andthecrushing wheel;

kfurther objectof my invention is to devise in an ore crusher of the class described; means and eoarserparticles' chine is in operation.

whereby? the crushing wheel within the cylinder will always lief parallelwiththe cylinderwalls and cannot be'wedged outotqalignment by lumps of refractoryore between the cylinderand thewheel. Afurther objector my invention is toaprovide a device of "the; character herein described in which tl'ie size of the crushed "pitrtlcles mm the machinecan be'varied while the ma- Afurther object of my invention is to provide a device of the characterherein described having'faseparatingl chamber from which" thoroughly "ground particles are expelled while the heavier arereturned to the machine for further crushing! l Wkfuither obj t o fmy invention istoprovide practically norubbing or grinding, crushing bea miufor theclas's deScribedin which there is ingeflected by the'ore'passing between two smooth surfaces upon whioha pres'sure is'applied. A i

ingunit." a Fig; 2wisxaj plane view: of :the same-"with the Aiurther object ofmyQinVention is to provide a highspeed ore"ojrushingmill in which'thereis no intermittent shocking or-vibration set up by movingparts thereof-{ i l l i A furtherobiect of myyinvention is to provide a device of this characterwhich" is rugged in construction and cannot becomeeasily out'offorder. 4- furtherobject ofmy inventi'on isz to provide a device of this character? which may j be simply -rnanufaetur'etiand will 'selllat a reasonableprice. With theabove moreimportantobiects inview and such other minor objects as may appear asthe specification "proceeds; myfinventionconsists essentially in the arrangement and construction of parts all as" hereinafter "more particularly described; reference being had to the accompanying drawingain which:- i Fig-r 1 illustrates aiside'elevation of my'crush revolvingtdrum shown in section.

Fig13isjarearelevatlonaljview of the same. 1 I

W IfL-OREOBUSHER L 1 Edward mann un l *Apiiiicationupril16,1836; Serial No. -72,925 f V CanadaApril 6,,1935 it .v My invention relates to improvements in ore speed! and will occupv considerably less cubic e Fi e 2.

N to, i W

'm i r illustrates a sectional view ofthe segre gating" chamber machineu- .l t t Fig; 51s a diagrammatic illustration of the ma- Fig. 6 is-asectionalviewtaken on the line used in combination with this Figural Fig.8 illustrates a perspectiveview of one of the crushing shoes which compose part of the rotor. Fig. 9 shows a segment of the coreused inthe rotor together with the compression rings for bindingthe rotor to the axle. l

Fla '1 is asectional viewtaken on theline 1-1 In thedrawings like characters of reference indicate corresponding parts in'the different figures. This' device consists of abed I having upstanding: parallel side walls 2 and mounted upon the forwardend otrthese walls area pair of heavy standards a which are attached to the bed by .means of bolts I or inany convenient manner.

Upon the forward ends of: the walls 2 are a pair of opposed adjustable bearings I which may be slid r-along theupper surfaceiof the wall and bolted in any desiredposition. A set screw 1 is providedto allow :these hearings to be convenientlyqadjustedwAniaxle a is mounted within the 9. These latter bearings, it should be noted, are

not adjustable but are :flrmlyw attached to the 1 frame of the device.

bearings ll: These latter bearingsare also ad- I justablealongthe surface ll of the standard and i may be located in the desired position by means of the set screw "and-afterwards clamped firmly to the supportbythebolts i6. 3 An'axle l1 similar to the aforementioned axles land is mounted within thelatter bearings and awpairo! flanged wheelslii, are attached thereto in alignment with with a. slightly arcuate configuration, this ring being designed to act as a belt track in a manner which will presently be described. In alignment with the flanged pulleys are two circular rails 24 which are designed to engage with thepulleys, the flanges of which maintain the drum in position.

At one end of the drum is an encircling curved flange i5 attached by means of boltsf25to the smaller flange 2l. .f,The curved'fiange, it should be noted, is provided with an enlarged circular aperture, in the center thereof, the edges of which j';

- j55 which extends eccentrically through the drum I.. 'Rigidly attached to this axle is the crushing are turned inwardly as at 21.

Upon the other end of the drum is a ci lcular trough 28 having an enlarged orifice 28' in the inner side thereof communicating with the inner chamber within the drum. .A somewhat smaller aperture III is cut through the outer-side, of the trough and an encirclingfiared lip 3| is attached on the outer side of the trough adjacent'theedge of the aperture. The outer peripheryjor this lip extends into an -enci rcling hood 32,-the1edges of which are turnedinwardly as shown mostclearly inFig; 2. The lower portion of this hood is provided with an outlet aperture 53 to which is attached a-spout-u for expelling materialfrom' the hood... v r

Extending transversely between the standards .38, I provide a heavybrace having flanges. at

either end thereof which are securely bolted to the standards. Also attached to the standards the ,length thereof, from the: outer surface of.

which. extend a pair of opposed lugs 46.; Short screws 51 extend throughthese lugs and into the sleevei, and-freely rotatable "rollers 45 are mounted upon the screws betweenthe lugs and thesleeve;

The forked ends of therocker. arms are designed to also pass between'the lugsxand'the sleeve and to bear against rollers .40. A stout cushion spring 49 is-interposed betweenthe annular. portion and the hand wheel 53'. 5

With thisarrangem'ent; it will beobvious that as the hand wheel is turned in a right hand direction, the shank will thread through the brace 35 and will compress the spring against the annulax-portion. This will in turn, through the rollers ll, bearagainst the forked ends of the rocker arms 40. and will cause them to moveinwardly. lnrorder to lock the shank in any desired position, alocking nut "is provided-on the inner end of the shank; and isdesigned'to bear against the side of the brace". l I u 1 Extendingupwardlyfrom a recess 5| within the walls 2 of the frame, are-a pair of opposed bearings 52 through which is passed a heavy shaft PI. Firmlyattached to this shaft ateither end re a pair of substantiallylvertical [arms 54 which carry split'bearings 55 adjacent the upper end An upstanding lug 58 is integrally-attached'to the end of each arm and a flared orifice 51 is provided therein; A curved socket '55 is made adjacent the narrow end of the orifice 51, this socket being designed to receive a complementarily formed head 59 of a rod 50.

The forward end of each rod is threaded as at GI and. is received within one end of a bifurcated member. 52, the other end of which passes on either side of one of the rocker arms 40 and is pivotally attached thereto by means of pins 63. A lockinghut is also mounted upon the threadedportion of'the rod" to lock the device in any desired position.

within the bearings 55, I mount a heavy axle wheel"; the periphery of which is designed to bear against the inner surface 20 of the drum is each adjacent-segment. Thesesegments are provided with-,apertures 60 extending centrally therethrough; the icentral portion 10 of which is cylindrical in shape and flares outwardly at both sides asat.-l l.. Into these flared portions are placed split rings 12, the outer surfacesof which areformed complementarily to the seatings with which they engage. 'When several of these segments have-been. placed side by side, long bolts .13 are passed through aligned orifices therein and the segments are clamped together at which time, the ringsfl! are compressed and bindfirmly against the axle B5. .1

.Extendingoutwardly from each corner of each segment is an integral lug ll and similar lugs 14 are bolted adjacent the lugs .13. Through each of the lugs ll-and 14 extend pins 15 and over these pinsare passed the hooked inner ends 16 of radialarms .11, which extend inwardly from each of the crushing shoes 18 shown most clearly in Figure 8. Each shoe,. it should be noted, is provided with slots. v

. integrally attached to the inner surface of .each shoe 15 is an arcuate section I! having two Similar; opposed 1 inwardly disposed studs Ill. studs Ii are provided on the outer surface of the segments and springs 82 are interposed therebetween. Over each of the springs is placed a rubber sheath 5! to prevent sludge from interfering;with theaction of the'springs when the deviceis inoperation. I

Mounted at the side of themachine, I provide a small centrifugal pump I! having a pulley 85 for rotation thereof, the inlet side of the pump being designed to receive the end of the spout 34. A conduit 55 extends upwardly and across the machine to'communicate ultimately with a sludge hopper 81. A tube 85 extends from the lower end ofithis hopper into a sleeve 89 which is flared atthe lower end as at 90 within a segregating compartment 9| composed of a glass wall 92 tov the upper endof which is attached a frustoconicallroof 93. Asleeve Ql'extendsupwardly from this roof and encircles the tube 89. It should be noted, however, that a space 95 is provided between the tube," and sleeve 94 into the upper end of which is inserted a bushing 96 heldin,-position byset'screws 91. A discharge tube 98 extendsoutwardly from the side of thesleeve 94. I I

Below the glass wall 92 is affixed an annular portion 99 having a downwardly converging inner surface I00. A'frusto-conical member I0! I is firmly riveted to the underside of the annular a l Mm w hcan cut wrestles 103-); A tar, ipe '9 emb and i n wi ia th ner en w ef zz e: 1 w i is il isn i s S ra water-swa thercir m n .nl u w lq di' e v a mi artme t s'imc mt sem t nes-m m 9 d sel t nabfflml right conical portion means an inverted conical qiportion ;l 0 1 'therebelow with .an intervening cylindrical nportion' l0 p o r e cu war v I06 and passithrcuehrt e fl ed p rt o u h 1 ube ifl (to hold the member ,in position. her this; I I10 extend from :the sides .,of,1 the c one .lllll and bearfagainst thelinner edge oi the annular pornonigsatto, :Dreveriti vlbration;roi the 'yvmernber when, the]; device is fin operation. P

g Mounted torone side oil thejcrushingwmachine, is araw ore hoppentl l lqjmm the lower; end ,of which 1 extends ial feed 1 pipe ill; which passes througnthe flange and "opensfwlthin the drum l9. branch-pipe ,l l3 communicates 'wlth the feed pipeat a point inimedlat'ely below the upper end thereof and extends :upwardly to receive the product issuing through ithe ,outlet aperture; l 02 ywithinthesegregatingmembere w l i i l -The[ construotiqfl army improved of ore crushing .{machine'ihaving been -;described,-athe mode of operatijon willlnow-"begpresented; w

A belt is passed around the outer periphery of the .cylindrical-drum andruns upon the track 23.] drurn, ishowrotated from a source of power and the crushing wheel therewithin is also rotated due to the contact thereof with the inner periphery of the drum. Raw ore is placed t in the'hopper r through the pipe I93. one ore passes down the feed pipeand ismixed with the water issuing Ill and water is introduced from the branch pipe H3, the mixture passing into the rotating drum. This process is continued until the machine is fully charged, at

which time, there will be about three to four inches of water along the'bottom of the drum.

The ore sinks to the bottom of the water and as, the, drum revolves, is carriedin the direction the drum runs, gradually forming a. thick mass in the side of the drum where the crushing is being done I t When this mass becomes thick, it sticks to the drum wall and is carried under the shoes of the crushing wheel. When the ore is going between "the crushingsurface, thewater'is squeezed out of the ore into the spaces on and between the shoes, this allowing the ore to' travel in a con-' tinuous stream up the .drum wall.

After the crushing is :done, the ore, remains on the drum wall and not on theshoes as the speed of the crushing wheel throws it off. The

crushed 1ore then travels around on the drum wall until it strikes the water. The fine particles-Y arethen picked up in the water and carried off in the discharge. The heavier particles that will not float, remain in the bottom of the water and ,arecarried around thedrum wall for further crushing. t l a When the 'mill, has been in operation for a little while, the partly crushedore and that being fed into the drum mixes in the form of a pump as shown in Figure 5, and in this way,

becomes distributed over the interior surface of the drum. As the ore is not carried up immediately, it drops into the water, it has a slight rolling motion as it goes up the incline of the drum wall. 75

About one half the water on the opposite side crushing.

being done is practically free from heavypariticles of. ore andremains comparatively smooth with little or nosplashing when suillcient water isibeing fed in'. l

lhave shown the position the crushingwheel assembly as having its, longitudinal ,and .hori- 'zon'tal ax al plane occupying the same position i as the horizontal longitudinal; axial plane of l the drum but this, position can the changed to suit vdifierent' conditions, it bein possible to raise or .lower the crushing ,wheelby changing thelength sor therods'lifl By my method of pulverizing, a comparatively flne grade of cr'ushing can be effected withoutthe necessity of screening-H 'As the drum is. rotating, a any hard particles such as iron o'rewhich cannot be crushed by the ,I,.wheel, will ,fall :into i the circular", trough lll and lmay be removed therefrom at variousqintervals.

in the event of crushing gold ore, this trough, may be. filled with aquantity' of mercurywhich will forman amalgam with any free goldcomlng --in contact therewith, i I l l ,w'lhe sludge carrying the now passes through the aperture and over the lip 3| into the circular hood 32 from-whenceit =passes down lthe spout 34. 1It .shou1dbe noted that I have made the hood y32' to completely surround. the dip in order to ccatch. droplets which may bethrown from the lip due to thecentrifufinely powdered ore galiorce exertedthereupon by the rapidly rotat- The sludge now passes into the centrifugal pump 84 and isurged upwardly through the conduit 86 to be admitted ultimately into the sludge hopper 81.

This mixture passes down the tube 88 and the flared tube 89. However, during this time, water is passing upwardly along the surface of the lowercone I01 and mixes with the sludge which passes down over the upper cone I08.

-When the stream of incoming water is adjusted correctly, the lighter particles in the sludge are carried upwardly with the water and passes between the sleeve 94 and the tube 89 to be expelled through the discharge tube 99. The heavier particles in the sludge, however, sink through the incoming water and pass downwardly through the outlet aperture I02 tobe mixed with the raw ore andintroduced into the drum for further It should be noted that each shoe of the crushing wheel is provided with separate .cushion springs so that in the event of an extremely hard particle passing between the inner periphery of the rotating drum and the surface of the shoes, instead of thewhole wheel moving away from the surl'ace or the drum, a single shoe will be compressed and the remainder of the wheel will continue to crush as efllciently as before.

Should, however, a large particle endeavour to passbetween the drum and the wheel and com-- press the springs under a shoe to the limit, the

whole wheel will then move away from the inner surface otthe drum by pulling upon the rods ment for as soon as one of the rocker arms 49 exerts pressure against the rollers 48, the spring 49 is compressed somewhat and the second rocker arm follows up to keep in engagement with the rollers. Thus both rocker arms are always moved the same] amount and the shaft or the crushing axis oi the rotating with this arrangament; I have found that 'I can cn ish large quantities of ore in a very thorough and emcient manner, the device requiring only a minimum" amount of power to operate;

Since various modifications can be made in the above invention, and many apparently widely'diiferent 'en'ibodir'nentsfof same, made within'the scope o! the claims without departing from the (spirit and scope thereoiiit is intended that all spring means bearable against the ends ot said matter contained in the accompanying specification 'shall be-interpreted as illustrative only and not in a limiting sense and I desire only such limitations placed "thereon" as are specifically expressed in the accompanying claims, 5

I What I I claim as my invention is:'

'1. Improvements"=in ore 'crushing machines comprising a framework, horizontally *aligned pairs of rollers mounted-thereon hollow drum rotatably mounted upon said rollers, a further pair of rollersinivertical alignment with one of said horizontally aligned pairsthereoi, means for rotating said drum,.said drumbearing against said vertically aligned pairs oisrollers'during ro tation thereof, a crushing wheel mounted within me drum, pivoted arms a carrying said wheel, means for adjustinguthe pressure of said wheel against theinterior periphery of said drumcomprising a 'pair of tension members-attached to said arms; rocker arms secured to said members,

' wheei iis maintained parallel to; the longitudinal rocker arms, manually operable means tor varycei'ving track extending around said drum, a mercury trough at one end' of said drum, a discharge flange'protruding outwardly therefrom, a hood encircling said flange, 1 crushing wheelwithin said drum-pivoted arms designed to carry said wheel, said wheel consisting of a. core, a plurality 'oi"'segmental*crushing shoes spaced therefrom, spring means'extending between said core and saidshoeameans for limiting outward movement oi'said: shoes from said core, and further means for adjusting the pressure'oi said wheel against the interior periphery of said drum comprising a pair of tension members attached to said pivoted arms, rocker, arms secured to said tension members,-spring means bearable against the ends-otsaid rocker armsand manually operablemeans for adjusting the pressure of said last mentioned spring .means against said rocker arms. I

- anwann'rnos. HAMBLIN.

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