US998949A - Centrifugal separator. - Google Patents

Description

www @vom fs M J. J.' BBRRIGAN.

GENTRIFUGAL SEPARATOB..

APPLIGATION FILED ooT.2a.1905.

Patented July 25, 1911 3 SHEETB-SHEET 1.

J. J. BBRRIGAN. GBNTRIFUGAL SBPARATOR.

APPLIOATION FILED O0T.28. 1905.

998,949', Patented July 25, 1911.

3 SHEETS-SHEET 2.

WITNESSES: y XNVENTOR J. J. BERRIGAN. CENTRIPUGAL SEPARATOR.

APPLICATION FILED 0GT.28.1905.

Patented July 25, 1911.

3 SHEETS-SHEET 3.

WITNESSES:

l 1 l INVENTOR /AT oRNEY solid material so nioved, to the chamber l,

JOHN J.

BERRIGAN, OF ORANGE, NEW' JERSEY.

CENTRIFUGAL SEPRA'IOR.

Specification of Letters Patent.

Y Application let October 2.,

To. all 'zr/tom it. may concern:

. Be it known that l. JOHN J. Biiimioari, ot' Orange, lisse); county7 New Jersey, have invented a nen' and useful Improvement in Centrifugal Separatore, of which the tolspectively, and :tor moving the .solid material of the solid aniiaiiis toward the axis and so awa;vv from the liquid anniilus while rctnrning liquid which separat-Qs .trom the lus; also important features of ainstruotion and arrangement and combination o1" parts, ln theaccompanying drawings-iti@irc l is a vertical longitudinal section ol a coin-- plete machine under the present intention; F ig. 2 is anelei'ation of the delivery end of the niachiii; and l? 3 is a cross section on the line ii-r Fig. l. l

Similar nuinh and letters ot reference indicate like paris. l is a. horizontal cylinder wherein the Workingl parts elf the machine. are inclosed. Ou the rd ist-armed the hollow trunnion 3 'wh ings l in the idartl Bolted to the opposite head o or sai-ell eylindenis a cylindrical casing 7' on which is formed a. hollow trunnion 8, which is received in a roller bearing 9 in the lined standard l0. Stand ards 5 and l0 restnponthe hed ll of the machine. The driring` pulley 12,'l1`ig, l,v is :tast upon a shouldered prolongation ot the trunnion S. Power is communicated to said pullerT Aby any suitable belt (not shown) and in that. Way cylinder l is caused to rotate. W'ithin the hollowv triinnion 3 is the feed tube 13, with the interior ot which the leed hopper let communicates. Said feed hopper is supported on a bracket 15, extendingl from the standard 5. In prolongation of the trunnion 3 is a tube.

16, having at its-inner enel a. which at 18 opens into the cyl* inder 1. Stopped in one Wall ol the chai ber 17 is the shaft of a spiral feed conveyor 19; the' other cud "of said shaft passes through hearings supported on th'e brackets 15 hd carries Iav sprocket .Wheel b y n rounding the tube 16 is a sleeve 2l between liquid ann'ii-4 received' in relier heari and extending into the cilindri 1 `which sleeve Patented Jiiiy i911.

1995. Serial No. Qff.

and said. tiihe 1G hearing1 roller?. 22 are interposed. so that said #leere ma).Y rotate freelyv on ,said iihe. llxleiidingi' radially from said sleeve are arms' L, which cai ry hars il-7 on which liars are secured conveying scrapers 25.

lNithin tlieeyliiider l is a ring` QH forming a conical eccentric passage ily sealed 'in which is the larger end of (he conical vessel lli the other end ol .said Vessel is .scaled iii the Cylinder head l. The rhaiiiliicr or coinpartinent A in cylinder .l hein'ren head 2 and rin."f iti Vtoriiisy one sep ratiiilii vessel and the conical ifcsscl l aiiothei'iseparatiiig rossil.v,.."l`lic separating wissel l heilig thus eccciitrTallil placed in the c'viiinhi' l constepped in a roller hcariiig' in a .decretid formed on. one wall ot il=echainla-r l? and hariiilg;` an annular cover. The other end is journaled in ay roller hearingl in a sleeve 3l in cylinfiler head (3. Said ,sleeve is provided with annular covers 32 and 552-3, which hear against. shoulders formed on the shaft. The lend ot the sli-att if) extends into the casing' T, and l upon it is a gear 34. Gear 34 enwith pinion 35, the huh 23C ot which turns freely on the shaft 3T which is secured in the cylinder head 6 and raising 7. Also 'on tliic'liub ot pinion 35 is agear 3S'which engages with the pinion 3S), which tast on the shaft 4:0. Said shaft extends through the hollow trunnion and driving pulley7 and carries atits end a lever arm 41 Fipz, which is iinincnfi'ahl)y secured to a bolt' on the hed of the inaeliine hy means of the rod 1.2. It. will, therefore, he understood that the 'pinion 39 does not'rotate.

-On the shat't 2f) in the conical separating Vessel B are a nuinhcr of iXedcollai-s 43 which carry arms 4 4 and these arms support hars 45 which 'in tiirn carry the conveying Scrapers 4G. The said scrapers are disposed with their outer edges in proximity to the inner peripheryv vot die-separating vessel.

The liars l5 extend through the opening' 27 in the ring 2G, and

the Scrapers at their ends moet either l)the hars or the Scrapers 59 as ihe case may. be, so that the Scrapers 25 throiiig'h theilree rotation ofthe sleeve 2l' will also he set. in rotation as'will he more partici darly explained hereafter.

,ln the cylinder head 21s ya liquid escapo opening 48 which communicates'with ain annular trough 49 Iin Which the Cylinder l freely turns and which has a delivery outlet at 50. Extending from the interior of the conical separating vessel B, through the wall of cylinder 1 is pipe 51, through which the separated solidsare delivered into the annular fixed trough 52 in which trough said cylinder freely turns and this trough in turn communicates with a horizontal trough 53 in the bed of the machine. \"Vitliin the trough 53 is disposed a long spiral conveyer 54, one end of the shaft 55 of which extends through a bearing in the bed and carries at this end a sprocket wheel 56, to which by means of a chain 57 motion is communicated from a sprocket wheel 58 fast on the hub of the driving pulley 12. The other end of the conveyer shaft 55 is journaled in a. bracket (35, Fig. 1, and carries a sprocket wheel 66, from which motion is communicated by chain 67 to the pulley 20, which actuates the feed conveyer 1t).

When the driving pulley 12 is set in revolution, the cylinder 1 as already stated, turns on its trunnions. In so doing it carries the gear 38 around the fixedpinion 39 in a planet movement, thereby causing a revolution of said gear 38 on its axis 37. The pinion 35 on the same hub as gear 38 is thus rotated and communicates its motion to the gear 34, and so to the shaft 29 in the separating vessel B.

It will be obvious that certain of thc Scrapers 25 in chamber A move around an axisconcentric with the axis of said chamber (or, in other words, of the cylinder 1) and therefore remove any material which may be on the inner surface of said chamber, and convey the same toward the conical separating vessel B. There are certain.

Scrapers, however, shown at 59, Fig. 1, which owing to'the -eccentricity of the opening in ring 26 do not act everywhere laround the inner surface of said opening. This is clearly shown in Fig. 2, where the upper scraper 59 is shown acting inclose proximity to said surface, while the lower scraper 59 is at a considerable distance therefrom. In

order to insure that all of the surface of said opening shall be scraped, I make. the inclination of that' part of it which is not acted upon `by the Scrapers 59 coincident vwith the inclination of the Wall of the separatin y vessel B, and then extend the bars 45 sufii ciently into the chamber A to allow them to carry Scrapers '60, which act upon said As the Scrapers 60 overlap the Scrapers' part. 59 or the bars 24 carrying said Scrapers 59, according to position, the motion of rotati :n of the shaft v29 is thus communicated to ali the Scrapers in the chamberA.

I will now describe the operation of the apparatus: The combined solidand liquid materials to be separated are fed into the hopper 14 and thence are carried by the ro tary screw conveyer'lQ into the chamber 1'( from which they are delivered through the opening 18 into the chamber A. This chamber A being a rapidly rotating centrifugal separatingchamber, the liquid and solid material will separate more or less complete-ly and form annuli of liquid and solid material respectively, the solid material, which is y usually the heavier, being next the periphery of chamber A, and the liquid Within the annulus of solid material. The dotted line C, in Fig. 1, indicates approximately the inner limit of the liquid annulus, this limit being fixed by the liquid discharge opening 48, through which the liquid overflows into the trough 49 and thence passes to the outlet 50. .The solid material is moved alongl by the Scrapers 25'to the ring 26, and .thence upward over said ring, by the Scrapers 59` and 60, to the conical chambery B. AThe solid material is then moved along the Walls of this chamber B, by Scrapers 46, toward the smaller or outlet end of said chamber. By the means described the solid material is moved through and away from the liquid annulus, liquid 'which separates from such solid material after the latter leaves said liquid annulus iowing backward to the liquid annulus again. Owing to the eccentricity of the chamber B, the solid material is continually carried nearer the axis of rotation, as said chamber revolves .with cylinder 1, and thereby the separation of the liquid from the solid material is greatly facilitated and hastened, V.the solid material being continually lifted from points of greater eccentricity to points of less eccentricity and so being carried away from the liquid very -quicklygthe liquid being, of course, free to flow from points of less eccentricity to points of greater eccentricity. The solids are projected centrifugally through pipe 51 to the annular chamber 52 in a thoroughly dried state. From the chamber 52, they flow by gravity into the trough 53,

and are finally delivered at the outlet end 'ofy said trough. The rod 42 and arm 41 which serve to hold shaft v4() in fixed position is merely an expedient for doing this; `any other means to hold said shaft may be employed. The chain belt 57 is kept tightv by meansof an idle roll 63 carried on the swinging shaft 64, vsaid roll resting by gravity against the belt. cylinder, 1 in addition to forming the wall of chamber A is to serve as a balancing device for the whole.v A

I claim:

f1. A- centrifugal separator comprising in combination a rotatable vessel adapted to separate'fwet material within it, by centrifugal acti'on, into concentric annuli of liquid and solid matter, means for moving the solid matter toward the axis while returning liquid which 'separates to the-liquid annulus .fand forv discharging dried solids 'from ai The function of the point nearei` the axis than the said solid annulus, and means for feeding Wet material to be dried into said vessel, therspace in said vessel bet\\'een said feeding means and said annuli being substantially unobstructed, said vessel having liquid discharge means more distant from the center of lrotation than said feeding means. i

2. A centrifugal'separator comprising in combination a rotatable vessel adapted to separate wetmatcrial iyithin it, by centril ugal action, into concentric annuli oi' liquid and solid mattei', means for moving the solid matter toward the axis in a direction oblique io the axisin both lorffitudinal and transverse planes and means for feeding Wet mate 'ial to be dried into said vessehthe space in said ve l between said feeding means and said annuli being substantially unobstructed, said vessel having liquid discharge means more distant from the center of rotation than said feeding means.

A centrifugal separator comprising in coml'iiuation a cylindrical centrifugal chanr ber and a coned centrifugal chamber commuuicating therewith, the former concentric with its axis of rotation, said cylindrical -chamber being provided with a liquid discharge opening and said coned chamber being provided With means for discharging solids, means for removing solids from the peripheral surface of said cylindrical chamber and advancing the same through .aid coned chamber toward the smaller end thereof While allowing liquid to liow back into the cylindrical chamber, and means for feeding wet material into said cylindrical chamber, the space between said feeding means and the annuli within said cylindrical chamber being suiiistantially unobstructeil, said liquid discharge opening being more distant' trom the center of rotation of the cylindrical chamber than said feeding means.

fi. .f\ centrifugal separator comprising in coinbination a cyliiidrical centrifugal chaluber concentric with its axis of rotation and an eccentrically set coned centrifi :al chamber communicating therewith, said cylindrical chamber la' ig pro'videi'l with a liquid discharge opening and said coned chamber being provided witll means 'lor dischargirg` solids, and means for rcinoviznisolids `from the periplmrnl -.urlaoo oll said cylindrical chamber and advancing the .same through said coned chan'iber toward thc smaller end thereof while allowing liquid to llow bach into the cylindrical chamber.

A centri'lugal separator con'iprising in combination a (':yliinlrical centrifugal chamber concentric with its axis ol.t rotation and a coned centrifugal chamber in connnunica tion therewith, said cylindrical chauiber boing provided with means 'lor discharging liquid at one end and solids at the other and said coned chamber being provided with means for discharging' solids, and means for removing solids from the peripheral surface ot' said cylindrical chamber and advancing the Asame through lsaid coned chamber toward thesmaller end thereof While allowing liquid to non' back into the cylindrical chamber, and means for feeding Wet material into said cylindrical chamber, the space between said feeding means and. the annuli Within said cylindrical chamber being substantially uimbstructed, said liquid discharge opening being more distant from the center of rotation ci? the cylindrical chamber than said feeding means.

ti. A centrifugal separator comprising in combination a cylindrical centrifugal chamber concentric with its axis of rotation and a coned centrifugal chamber in communication therewith and eccentric to its axis of rotation, said cylindrical chamber being provided with means for discharging liquid at one end and solids at the other with inter-- mediate means ior feeding in raw material, and said coned chamber being provided with means for discharging solids, and means for removing solids from the peripheral surface or' said cylindrical chamber and advancing the same through said coned chamber to Ward the Smaller end thereoifn'hile allowing liquid to iiow haelt into the cylindrical chamber.

7.2i, centrifugal separator comprising in combination a cyl indricil centrifugal chamber, and an eccentric coned centrifugal chamber and an internally coned annulus' intermediate the interior surfaces o'f said cylindrical and Aconed chambers, said Separator provided with moans t'or siqiplying material to be treated lto the cylindrical chamber and with means for the escape of separated liquid and solid materials, and conveying means ifor transferring the solid material to the coned chan'ioer and moving it therethrough.

8. il. centrifugal separalor comprising in combination a cylindrical chamber concen tric with its axis olA rotation and aI coned coniriliugal chauihorin communication thereuilh, conveying means lor moving solid maicrial along the cyliiulrii-,al chamber, and

other conveying means lor moving solid..

material along the coned chamber.

il. centrifugal separatm: comprising in combination a cylindrical chamber and a coned centrifugal chamber in communicalion tlicrmvith, conveying means t'or moving solid material along the cylindrical chamber. and conveying means for :novi 1g solid n'iaterial. along the coned chamber, 1.o latter conveying means arranged to drive the former.

l0. A centrifugal separator con'iprising in combination a rotary centrifugal separating drum, moans'or rotating the same, a conveyor therein, means for rotatingsaid conveyer comprising a stationary shaft concentric With the axis of rotation of the drum, a -pinion thereon and planetary gearing carried by the drum and rotating around and driven by said pinion, and means for holding said 'shaft and pinion stationary com` prising a projecting arm and means for securing the same to a xed point.

1l. A centrifugal separating machine comprising in combination a cylindrical centrifugal chamber concentric with its axis of rotation, a conical separating chamber eccentrically mounted with respect thereto and in open communication therewith, and means for 'feeding materials successively through said chambers, saidmeans comprising means for feeding raw materials to one end of the cylindrical chamber and rem0v ing solid materials from the opposite end of the coned chamber and means for advancing solid materials from the first stated end to the second stated wend, and means for removing liquid from the first stated end. i

12. In a centrifugal machine, means for forming concentric annuli of separated solids and liquids, means for advancing the solids from the solid annulus'over the interior of aconed surface, eccentric to said annuli in an annulus eccentric to the Erst stated annuli, means for delivering separated solids from the smaller end of the coned surface In testimony whereof I have signed my name to this specification in the presence of two subscrlbing witnesses.

JOHN Janneman. lVitnesses WM. H. SIEGMAIN, l PARK Bn'NJAMIm'Jr.

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