US929697A - Liner for centrifugal separators. - Google Patents

Description

J. A. oHLssoN. LINER PUB GENTRIPUGAL SEPARATORS.

' APPLICATION F1LBD'AUG.3.1'907.

Patented Aug. 3, 1909. l

w. lill/fw' Vfl/ffl BYv i Z/Cl% AT RN Y/ .of which the following is a My invention relates to liners for eentrif "UNITED STATES PATENr. ori-Fien. N I

JOHAN ABRAHAM oHLssoN, or New Yoeri, N. Y.

` LINER" FOR 'CENTRIFUGAL SEPRATORS.

To all whomiit may concern.' `r

Be it known that I, JOHAN` ABRAHAM (Masson, a subject ofthe King of Sweden,

' and a resident of the city of New York, in the county of New York and 'State of New York, United States of America, have in- .vented certain new and useful Improvements in Liners for Centrifugal Separators,

specification.

' ugal' separators and consists in the. desi n and construction of liners for apparatus or the separation of the constituents of liquids under the action ofcentrifug'al force.

I- will describe my invention in the following specification and point out the novel according to a modification of and F 1g.

features thereof in claims.

Referring to the drawings, Figure 1 is a sectional side elevation of a simple form of centrifugal liquid separator with my improved liners applied thereto Fig. 2 is a sectional plan view of the same through the line 2-2 of Fig. 1. Fig. 3 is a side elevation and Fig. 4 a plan view of one of my iinproved liner blades. Figs.' 5 and 6 are side elevations of portions of. liner blades `made my invention, 7 f is a sectional plan View of a liner of the form of construction illustrated in ,so 'I will particularly describe hereinafter. A

. owl 10 between its central core and the side Like characters of reference corresponding parts in all of the figures.y

these Figs. 5 .and'6, the section inthis view being taken through the line 7 -7 of Fig. 5. designate l0` designates a cylindrical separatorbowl closed at the bottom by a basell ,from which 4depends a spindle or shaft 12 by means of which the bowl may be rotated about its vertical axis. A hollow core 13, which vmay be integral with the bowl, extends upward to a height somewhat greaterl than that of thev sides ofthe bowl. .The lower end of this core ,is provided with openings 14: whichI form connecting Ppassages between the inside .of the core andthe bowl proper.

15 ,is the top or cover of the bowl which isarranged to fit ti htl)7 over the upper ortion of the sides o? the 4latter and whic is provided ynear its upper portionwith an outlet passage 16.

.20 designates 'a .liner blade or plate which lurality of these blades is placed within thet walls. Thebase 1l of the bowl upon which these blades rest is constructed as shown to Specification of Letters Patenti.

Application led August 8, 1907. Serial' No. 386,864.

tions desigln ratented Aug. s, 190'9.

support the blades near tbefcentral core and also near the side walls, but are so arranged that no obstruction is formed to the flow of fluid below the blades. f

.Above the seriesof liner blades a collar 17,'which is shaped to conform to the tops of the blades, is placed. A clamping collar 18 is placed above thel core 13 and above the collar 17, and in this clamping collary 18 one or more holes 18A are drilled. A lock-nut 19', upon the up `er end of the core 13 which a is threaded as s clamping together .the various parts above own, serves the purpose of described and holding them securely in.

Centrifugal liquid separators of the general type above described are in commonuse and are well known. It is the purpose of the present invention to improve upon the liners of such separators in a simple and inexpensive manner. To this end I have invented' a novel liner which is plurality of blades, 20. The blades are constructedof thin sheet aluminum or, other suitable metal. They are curved asshown in Figs. 2 and 4 and are arranged to lie 1ny close made up of a proximity` to each other when placed within theseparator bowl 10. At their outer ends they are bent at an angle to form projecting portionsl Q1. These projecting portions'are tapered inward fron the` bottom as shown in Fig. This figur also shows at 22 that` 1.

right .to left upward -as represented by solid lines',V and those `on lthe concave side of the blades are inclined in the o posite direction `:is-represented by Adotted mes. The `ribs preferably project above the surface of the 'blade .a small amount and Vthe intervening spaces ma `beeilen with the surfaces or may be ,made s ightly `depressed below them. In this form o These ribs 4which are on the' convex side of the blades 'are inclined from my invention I prefer to' have the bands are so con' ioo rie

`core '13. blades and as it passes between them, it; is

v holding .the ends of the blade at the proper distance 'from the side walls of the bowl.

In. operating this apparatus the separator bowl is rapidly rotatedand the liquid to be se arated into its constituent elements is admitted through the center A of the hollow It may flow freelyunder the liner subjected through their rotation to.v the. action" of centrifugal force. rIhis Acauses the heavier coin onents to be thrown outward towardthe side walls of the bowl and at the same-time the lighter elements or components are forced inward .toward the core. As the liquid rises throughthe linerit thus becomes broken up into its heavier components which pass u through the passage. B and out through te opening 16, and `its lighter components pass up through .the passage C and out through the holes 18A.

it has .been found that if the 1i uid is divided up into a large numberoft in strata Y or laminae while being subjected to the ac-.

tion of centrifugal force, the effectiveness of the operation is increased, and in some eases the Athinner these lamin the greater will be the elliciency of the apparatus. Bythe use of m improved liner the greatest eciency strength yto withstandthe great. internal is ob ained. The various lades are closely packedto ether in the manner described and are only eld apart' by the small projecting ribs on the convex surfaces of one blade resting against the ribs on the concave surface ofthe next adjacent blade. As these ribs are inclined in o posite directions 'the cross eachother an thus form-substantia means of separating the blades with suliicint pressureV to which the blades are subjected. The smoothsurfa'ces between the bands of inclined' ribs vare held apart in this manner but a few-thousandths of an inch, and in the spacesv formed between these smooth'surfaces a greater part of the separation takesl place. As the intervening spaces between the ribs on the concave surface of the blades are inclined upward toward the side walls of the bowl they form passages for the upward and outward flow of the heavier components ofi the Jliquid, while the spaces between the ribs on the convex surfaces are inclined in the opposite direction so that they forni passages lighter components.

-for the upward and inward ow of the These oppositely inclined passages also tend to set up leddies in theliquid in the spaces between the smooth surfaces and thereby assist/in the separation of the liquid. f

In the modification illustrated in I Figs. 5, 6 and 7, the blades are made of the same general shape with smooth surfaces crossed by bands of ribs and depressions, but in thiscase the banded portions of the bladesare composed of corrugations as may-be clearly seen in Fig. 7, and these corrugations are inclined to the vertical axis. As these corrugations necessarily make the incline of the ribs in the saine direction on bothsides (1L- 4the blades I construct these blades in pairs with the corrugations on one ofthe blades s e n l n l inchned in one direction as 1s illustrated in v.

Fig. 5, and the inclines on the other blade of the same pair in the opposite direction as isg shown in Fig. 6. In placing these blades .withinthe separator bowl I alternate thel blades so that'the corrugations on each` blade will crossA those yon thenext adjacent blades.

The operation of the apparatus when s upl plied with this form o lineris similarto 'that already described.

What I claim is* f 1. A centrifugal separatory liner comprising a plurality of blades, each of said blades having a smooth surfacekandatransversely disposed band of inclined* ribsacross said 1surface. 1

2. A centrifugal separator linercom rising a plurality of blades, each of said Vb ades having a smooth surface, and transversely disposed bands ofl inclined ribs crossingsaid s surfaceiongitudinally.

3. A centrifugal se arator liner comprising a plurality of bla es, each of said blades having a smooth surface on both of its sides,v and a transversely -disposed band of ribs crossing both of said surfaces, the ribs being setpbliquely across theband. ,4. A centrifugal arator liner comprising a plurality of bla es, said blades havin a smooth surface on both of their sides, an

-a band of inclined projecting ribs Ncrossing.

both of saidsurfaces longitudinally, the ribs on one of said surfaces being inclined in the yoppositediection to the incline of the ribs on the other surface.

5..A centrifugal se arator liner compris- .l

ing a plurality o f bla es, said blades having a smooth surface on both of their sides, three projecting ribbe'd bands on each side of said blades, one of the bands crossing the surface near its uppen edge, another ,of the bands crossi-ngthe surface near its lower edge, and the third of said` bands crossing the surface intermediate the other two bands.

'6. A centrifugal separator liner comprisinga plurality of blades, said blades having a smooth surface onboth of their sides, three the surface intermediate the other two bands,-

bands of inclined projecting ribs on each side of said blades crossing the blades longitudinally, one of the bands crossing ythe surface near its upper edge, another ofthe bands crossing 'the surface lnear its lower edge, and the third of saidbands vcrossing the ribs of the bands von one sideof said blades being inclined in the opposite Vdirection to the incline of the ribsonthe other surface.

47. A centrifugal linercoinprising a pluf rality of .curved blades arranged with the convex surfaces of each blade facing the concave surface of, the next adjacent blade,- each of said blades having a smooth surface on both of its sides and a band of inclined projecting ribs' crossing both of said surfaces longitudinally, the ribs on one side being inclined in 4the opposite direction to the incline of the'ribs on the adjacent' side of the next. blade.

8. In a centrifugal separator, a rotatable separator bowl, a plurality of curved' liner blades within said bowl, each of said blades having a smooth surface, and a transversely disposedY ba'nd of inclined projecting ribs crossing saidsurfaces longitudinally, said projecting ribs constituting means for holding the blades a fixed distance apart.

9. "In a centrifugal separator, a rotatable separator bowl, a plurality of curved liner blades-vertically disposed within the bowl,`

said blades having smooth surfacesn upon both of their sides, and bands of inclinedV ribs projecting from saidsiirfaces, the ribs on one side being inclined vin the opposite blades being'inclined upward and outward, f

direction to: thein'cline'of 'the ribs l on theo a'dj acent sideof the 'next'blade and arranged Vto Contact therewith tofliold'the blades a fixed distance'apart-L plurallty of vcurved liner said `blades having smooth surfaces Aupon both their concave and convex sides,.and bands ofv inclined ribs projecting fromisaid su1=face s,ftl1e`ribs on the concave side of the and theribs on the convex sideof the blades being inclined upward and inward.

- 11. In e centrifugal separator, a-rotatable separator bowl, a plurallty of 4'curvedl liner blades vertically disposed within 'the bowl, A,

each of said blades having smooth surfaces 5 upon both of its` sides, Athree bands oft'finff clined lprojecting ribs on each' side `of said 4blade crossing the 'blade longitndinally,one

ace nearitsu -f i JOHA 1ABRAHAM OHLSSHj- Witnesses: Y. Y...

ELLA TUCH,

ERNEST W. MAsHA'LL.

4o 1 0. In a centrifugal separator, a rotatable Aseparator bowl, a bladesverticallydisposed Within the bowl,l

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