US945592A - Centrifugal separator. - Google Patents

Description

J'. W. PHILLIPS.

GENTRIFUGAL SEPARATOR.

APPLICATION FILED APR. 5. 1909.

JOHN W. PHILLIPS, 015 SILVER CITY, NEVADA.

CENTRIFUG AL SEPARATOR.

Specification of Letters Patent.

Patented Jan. 4, 1910.

Application tiled April 5, 1909.. Serial No. 487.842.

To all 'l 'ltom it may concern.

Be it known that l, JonN 1V. lmnurs, citizen ol the United States. residing at Silver City, in the county of Lyon and State of .\evada, have invented new and useful Improvements in Centrifugal Separators, of which the following .is a specilieation.

My invention relaties to centrifugal separators, and pertains especially to separators of the type employing an outside rotary the blades of which conveyer have a differential rotary motion to discharge the solids at the lower end of the apparatus separate from the liquid which is discharged at the topi The object of this invention is to devise a satisfactor means by which a minimum amount or agitation of the liquid undergoing separation will take place, so that the finer impalpable particles of solid matter or solid matters which have apparently no measurable dimensions will be separated and collected. a

The invention consists of the parts and the construction and combination of parts as hereinafter more fully described and claimed, having reference to the accompanying drawings, in which- Figure 1 is a vertical section, partly in elevation, of the invention. zontal section on the line. IZ-IU of Fig. 1.

In this improved machine I employ a sh ll made in two parts or sections .\2, each section being essentially in the form of a truncated cone, with the upper larger end of the lower section A extended in cylindrical form, as shown at 3, and'the abutting ends of the shell sections being suitably connected together, as shown at 1. The shell is open at both top and bottom and is supported ona vertical shaft 5, which latter is mounted in suitable bearings in the main frame of the apparatus.

A collar 7 is keyed to the shaft and carries an inclined detiectingand distribut nc; disk 8 which is arranged proximate to the waist or wider portion of the interior of the shell.

The disk 8 does not extend to the shell, there being an annular space left between the disk and shell, around and through Which all of the liquid and matter to be acted on passes. The disk 8 constitutes the floor of the receivin hopper, and should not be perforate The upper surface of the disk car- Fig. 2 is a horition of these vanes it is to force all the material, both solids and liquids, heavy and light. through the space, around disk 8 into theqrreatest diameter of the machine and through the area of greatest separatingforce. These webs or vanes act similarly U) the 'anes of a centrifugal pump, and force the atlluent material through the stationary V 1 wall of water and solids in Sllfilltllfiltill which conoulal shell and an inside spiral conveyei,

is formed at 1) above and below disk 8, when the machine is running.

()n the under side of the disk 8 is a downwardly extending, peripheral, cylindrical tlange til which is parallel with, and spaced from. the cylint'lrical section 3 of the shell, and with the interior of this flange coincident with. and in fact, locating the waterline D. The allluent. material which is fed in through the hopper is forced by the action of the vanes 11 outward and over the edge of the plate 8 and down through the annular space between the parts 13--3 and driven through this imaginary barrier D,

and all material subjected to the greatest;

All liquid before itcan be discharged from the machine must pass first through the area of greatest separating force in the machine, and then strain back to the outlets 12 against centrifugal force. In doing so the liquids are thereby separated from the solids, which latter are thrown against the casino 2 and removed by the spiral scrapers 15. These spiral blades or scrapers 15 are fixed to the radially disposed webs 16, which ,latter are "carried by a hub 17 secured" to a sleeve or hollow shaft 18 rotatable on suit able bearings 19 about, and concentric with, the shaft 5; the two shafts 5 and 18 having motion in the same direction, but at. slightly ditterent rates of speed.

Tothe top of the supporting Webs 16 is fixed a ring 20 suitably spaced from the-disk 8 above. the disk 8 and ring 20 inelosing a space which opens outward to the shell for the reception of the separated liquid. The

ring 20 prevents the liquid which passes be ries a number of radial webs 0r vanes 11 1 low it from rushing upward and out through e pipes 12; the water below the i .1 i usual; being more or less muddy, owing to he 0 4 erstion of the blKlES.

The per piersn flange 13 on disk 8 has its ow-er eds-e up zoxnnctely 1n the horizontal non 01 lower end oi? the cylindrical scelion whc it joins the conic l part A of th :20 is enough he u e 18 to prov' or the clariblades 15 which are spaced about tWo Y sport. are given a let pitch in the Wiest portion 017 the machine, the pitch gi'eduelly lllQIBflllllg es the space narrows rd the bottom of'the interior of the 4 These blades in the present case are to extend shove the ring 20 and up o the cylindrical space between the parts and 3, the upper ends of the blades being itebly supported by the bracket arms l5]. which ere carr ed by the Webs 16. It is un dcrs cod that the outer shell and the parts 8 and 1 are i wily fixed to the shaft 5, and all turn in unison but that the blades 15 have. slight diuiereutiel movement within th respect to the shell the part y the cylindrical arrangement oi the end 13, and the extendingoli the into this cylindrical space, the

d m *tleriul to be separated which is i 'e liquid rial to be separated almost immediately semi-to ing the speed of the mschine, so that separation soon gets under it has been found necessar in order tothe tinest sliincs that sil sgitetion of the matter undergoing treatment should be avoided as far as possible, so as to prevent stirring presents their settling against the outer side of the shell. In this present his chine, the portion of thehiodes 15 which extends on into the cylindrical specs between 1 and i3 forms cells or chambers f i the liquid and r sterial to he sepsai'i'i d around, orocticsily ell ction is mrcimlcd and the finest oi": is found to collect on the shell in solids, thence to SC}? uzliy downwzrd into the trough :41,

v -i J sinus toe outer e ii); the co 'hcoper is thrown outward by, t e

ion and th pumping force of n ins; the outer shell 2, this e finest solids lacing stirred up and Whichand consequently, :hy the time the liquidreaches the bottom of the flange 13- it is practically freed er all its solids, and the Water passes out of the machine through the discharge pipes 12 practically clear, This cylindrical arrangement of the parts 3 end '13, with the intervening blade sections 15,

constitutes the main features of this present invention. As the shell contracts toward the lower end, the pitch of the blades 1-5 in creases'so as to compensate for the greclusolids along the space inside the Water-line,

thereby drying the solids before discharging them,

suitable differential speeds, from any suitable source of power, by any appropriate means. As here shown, 25 represents'a,

power-shaft, provided with two bevel gents Eli-22" of different size engaging corre sponding gears 28-29 on the respective shafts l8 and 5; the pitch oftheseconnech ing gears varying according to the liiic *ence in speed at which it is dESlTEtlilO drive th shell rind the conveyer blades 15.

in principle the parts 13 and tlniey he considered inner vand'outer cylindrical shells which choperate with the upward extension of the bind-es to inciose'a spiral tubules chamber which is rectangular in cross-section and through which chamber ell of the liquid and material to be separated is forced,

and in {which chsm of gg all the separation takes plaice the outerlthell forming a well. to the chamber, which Wall has a slight chi? .ferential motion. from the blades so that at the same time that separation taiies piece through centrifugal action, there is'e V ual progression of thesolids along this outer Wall. 'lhe main feature, however is the separation in a rapidly revolving; spiral" tubules chamber.

Having thus described my inventiomwhet 1 claim desire to secure by Letters Petent is A. centrifugal. separator comprising I in combination a shell open at, the ends and l W'ng on. cnlei' ed circumferential portion 4 ends, said enlarged iortion hecylindrical and concentric with rotation the shell, a shaft to is fixed, an irnpcriorate disk shaft and shell and Within e .4 disk having a downwardly eriohcrisl, annular tiange,wl1ich ;entric with, and spaced from,

.i he two shafts 5 and 18 are operated at,

the enlarged ,cylmdrical portion of the solids from said contracted lower end of the shell, a sleeve surrounding siid shfift, spishell bein nearer the axis of the shell than rally-arranged blades inside the shell "and said liqui discharge.

carried by said sleeve, means forgiving the In testimony whereof I have hereunto set 15 sblades and shelladifi'erentiel rotary motion, my hand in presence of two subscribing and said blades extending upward into the Witnesses.

dyilindricals ace between said flange and geaid enla'r e circumferential shell portion, Q PHILLIPS 'gi the jspace ehind said flan e havin dis- Witnesses: ehilfr'gefor the liquids, the ower en of the CHARLES A. PENFIELD,

" the discharge for the Germans EDELMAN.

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