US1264135A - Mineral-separator. - Google Patents

Description

w; P. ALDERSON. y MINERAL SEPARATOR; MPLlCATl'ON FILED FEB. I9. l9l6.

Patntd Apr. 30, 191.8.

lll'lll y certain new and useful Improvements inv llt) - winnen' rracnvanatnnnson, or trlnminsoivranto, canapa.

y ivrtnnaansnranaror..

Memisa.; i

Mineral-Separatore, of which inor isthe specilication.` Y l n y invention relates to improvements in mineralseparators and the object of the inventionsto devise4 a` separator vwhich the followwill thoroughly separate the ner particles from thecoarser particles of the pulp, in

which the bearings ofthe separator are located above the level of the pulp and therefore havel a vlonger life, and inwhich the necessity for digging out Aaccumulated pulp `beforeyst'arting the machine' is obviated and it consists of `a troughclosed at one end and tapered toward the opposite n end, the tapered end being open and the plate 6in which is located aslotted `outlet closed end being provided with al slotted outlet lintermediate of its height, a main shaft extending 1 longitudinally `centrally through thetroughya pivot support forone end ofthe shaft, `a supportfor the opposite end of the shaft cally adjustingsuchopposite end upon the supportga rotary conveyercarried by the shaft within the trough and conforming to the shape thereof, that is7 having a tapered forward end, the said conveyer comprising two `series of segmental blades arranged to form adouble spiral, `the end of each blade overlapping and spaced forwardlyof the adjacent end ofthe next blade "in the series, and means for driving the shaft supporting the "conveyer" as hereinafter more `particularly explainedby the following specification. c Y i Figure 1, isa my separator.

Fig.- 2, is an enlarged longitudinal section throughlfigl.

` Fig. 3, is an endelevation showing a portion of the `trough with one side broken away and in section.

general perspective yview of In the drawing like numerals of ref`-V figure. y

1 is a trough comprising"av horizontal portion 2 and a tapered portion 3, thetapered portion being provided withan open end 4. Theopposite end of the troughl is providedwith a closed end formed by the end erence indicate corresponding parts in each Specification of `Letters Patent. application mea February 19,1916. l serialivo.

ways 22 and 23.

and means for vertil ,brackets also U-shape4 in form `secured Patented ApnBtO, maaar"` i aan srariasrara 'r risica.

f( anda vertical slot 8 for a purpose which will `hert-iinafter appear` The trough 1 is supported on suitable chair standards 9 and 1Q. llis afeedinlet. 13 is the conveyer shaft provided at one end with a bearing sleeve 14 having trunnions lr5` resting in bearing recesses f16 formed in the bearing blocks 17 carried bythe bea1n118. 19 is an Igbeam "extending across the end of the trough against the outside face of the plate 6, and above the outlet `slot 7. 20 is an angle'barsecured to the plate 6 and tothe topoffthefbeam 19V so as to support the corresponding end of the trough. f 21 is an inverted U-bracket boltedto the angle bar 20and -beam 19 andlocated oppositethe "center'fofthe trough 1.` The bracket 21 is provided with internal vertical guide-ways 22 and 23. 24 is a slide piece substantially U-sha`pe in form,

the vertical edge portions of which extend `into `the vertical guide- 25 is a sleevesecured on the shaft 15. 26 and 27are trunnions eX- tending from the sleeve into bearing` `enlargements 28and 9 formed in the side piece 24. Y

30 is a stem `secured at its` lower end in the enlargement 31 of the slide piece .24. The stein 30 is provided with a threaded upper portion `-which passes freely through an orifice 32 in the top bar of the bracket 21. 33 .is a hand wheel screwed on to the upper threadedend of the stem 30 so as to bear against the upper end of the bracket 21. 34 is the main driving shaftrupon which is mounteda bevel gear 35 meshing with the bevel gear 36 carried by the shaft 131 The main shaft 34 is in axial alinement with the center of the trunnions 15. 37, 38" and` 39 are spiders 13. The spider "37 is thespider 38 which is than the spider 39. l y y 40 are bars secured to the `outer yends of the arms of the spiders 37, 33 and 39. The portions 41 of the bars 40 converge slightly inwardly and theportionsk42 of the bars 40 converge sharply together toward the tapered open end 4 of the trough 1 so as to present a conical formation. 43 areseries of U-shape brackets carried by the portions `41 of the bars 40. `The brackets 43 gradually increase in inner ends zof the portions 41.

slightly y larger than considerably larger Y 44 are vcarried by the shaft n size toward the f the portions 42 ofthe bars 49,'the` brackets 44 being substantially` equal in size. 46

are series of'v segmentalV arc-shape blades, one end of each blade being secured to the rear arm of each bracket 43 supported by the portions 41 of a bar 40 and at the opposite end to the forward arm of each bracket secured to the next ladjacent bar 40. The bladesare also arranged to' form a double spiral around the portions 40 of the bars 41, theend portion of each arc-shapev segmental blade 46 being'y set i'n advance of the adjacent end yof the next succeeding blade as is shown clearlyy in Fig. 2 of the drawings. It will also be ynoticed on referring to Fig. 2 that the blades 46 increase gradually in width from the end of the conveyor toward the center for. that portion carried by the spider 3S. t this point in the conveyer the blades are a maximum width.

47 area series of blades. carried by the portion@ of the bar 40. The blades 47'y are substantially' of'the'equal width and therefore" coliform to the general tapered formation ofthe eonveyer extending from the spider 38 to the open end 5 of the trough l.

From the above description itwill be seen that the outer periphery of the conveyer conforms in shape. tothe internal periphery of the trough l. The ends of the blades 47 are arranged in spiral formation and are spaced apart' inA a similarway to the blades 46 previously described.

At the extreme end or apex of the conveyer single blades 48 and- 49 are employed carried bythe brackets 50 and 51 secured to the portions 42'of the bars 40. y

Having described the principal parts involved in my invention l willr briefly describe the operation of the same. 4

The pulp is fed through the inlet l1 into the trough and has a tendency to flow into the horizontal or deep portion of the trough 2. The conveyer revolves in the direction indicated by arrow in Fig. 2. As the conveyer revolves the advancing ends of the blades 46 engage the pulp feedingv it forwardly up the incline of the trough. As the blade continues' to revolve the pulp passesy fromthe end of the blade on to the advancingend of the next adjacent blade situated slightly rearwardly and is then carl ried again forward. By this means as the pulpV iowsfbacl from one blade to the next blade it loosens up allowing the' fine particles to free themselves from the mass and float into the liquid mixed with the pulp. rlhis action is repeated as the pulpv passes from one blade tothe other until all the fine particles have been removed from the mass as such mass is carried-up the inclined portion 3 of the trough to the outlet- 4; The mass afterthis separating operation has taken place consists* of thel coarser particles of whichy areY discharged through the discharge orifice 4, such mass being drained asV it passes above the liquid level in the trough.` Fine particles separated as above described are carried by the iow on the surface of the liquid rearwardly above the lower blades 46 and through the outlet slot 7. After the separator has been left to stand and a certain amount of pulp settles and remains'in the bottom of the trough all that is necessary to do is lo turn the hand wheel 33 so as to draw vup the stem 3l) and slide piece 24 and the corresponding end of the shaft 13 supported therein upwardly so as to clear the blades 46 from the mass. After the blades are carried clear of the mass they may be again gradually lowered by Vreversing the motion of the hand wheel 3b' so as to gradually engage the mass of pulp and carry it forwardly. lf desired, of course, after each separating operation the conveyor may be left in the raised position so that the blades will be clear of any pulp which ymay remain after settling in the bottom of the trough.

By my construction the digging out of the pulp is obviated, the machine being so constructed as to clear itself of the settled pulp at the beginning of each operation.

Also in such a machine as l have described the pulp is thoroughly loosened up allowing the liquid to mix freely therewith and the lighter particles to separate themselves from the coarser and iioat to the surface of the liquid to a separate outlet while the coarser particles being carried in an opposite direction to a separate point of discharge.

lllhat l claim as my invention is'- '1. A mineral separator comprising ay trough having a tapered portion atone end terminating in a discharge opening, a closure for the opposite end having a discharge orifice therein, a supporting strncture, a suitably driven shaft extending longitudinally through the trough pivot-ally carried on the supporting structure at one end so as to swing in a vertical plane and 110 adjustably supported upon the supporting structure at the opposite end, and a spiral conveyer carried by the shaft having a tapered end conforming to the shape of the trough.

2. A mineral separator comprising a trough having a tapered end terminating ina discharge orifice and a closure for the opposite end having a discharge orifice, a conveyor rotatably mounted within the trough to conform to the shape thereof and comprising a. series of segmental arc-shape blades arranged in spiral form, the rearward end of each bla de being set forwardly of the rear end of the next forward adjacent blade, and means for raising the conveyer clear of the bottom of the trough.

3. A mineral separator comprising a trough having a tapered end terminating in a discharge orifice and having an inlet orce in the periphery thereof, a closure for spaced forwardly of the forward end of the the opposite end of the trough having a disnext forward adjacent blade and U-shaped 10 charge orifice located intermediately of its brackets having the adjacent forward and height, a spiral conveyer rotatably mounted rear ends of the blades secured thereto.

5 Within the trough and conforming to the WILLON PERGEVAL ALDERSON. 'shape thereof comprising a series of seg- Witnesses: n a mental arcshape blades arranged in spiral JOHN S. GORMAN, formation, the rear end of each blade being ALEX. J. MACGREGOR.

Maler af thm patent may he obtained for nire cents each, by addressi i l warmem, 1D. Y

:um the ommlralmmcr of atenta,

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