US 1016366 A
Description (OCR text may contain errors)
G. E. SANFORD.
LIQUID SEPARATOR. APE'LIOATION FILED JULY 27, 1909 1,016,366. Patented Feb. 6, 1912.
3 SHEETS-SHEET 1.
34mm km G. B. SANFORD.
LIQUID SBPABATOR. APPLICATION mum 111L227, 1909.
1,016,366. Patentad Feb. 6, 1912.
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G. E. SANFORD. LIQUID SEPARATOR. APPLICATION mun JULY 21. 1909.
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GEORGE E. SANFORD, OF CHICAGO, ILLINOIS, ASSIGNOR, BY MESNE ASSIGNMENTS, T
SANFORD CLARIFYING AN D SEPARATING WARE.
COMPANY, A CORPORATION OF DELA- LIQUID-SEPARATOR.
Specification of Letters Patent.
Application filed July 27, 1909.
Patented Feb. 6, 1912. Serial No.- 509,827;
parts o'f different specific gravities; and the' mvention consists of the parts and construc tions and combinations of the parts herein-- after fully described,. illustrated in the aocornp ying drawings and particularly pointed out in the appended'plaims;
Impurities in liqu ds are now commonly removed by filtering, precipitating, decanting and skimming. In the present instance, the impurities are removed from theliquid by running-the liquid through a rapidly revolving drum wherein the centrifugal force.
.geiieratedby'the motion of the drum,'acting in unison, with theforces of the difl'erent specific gravities of the substances in the liquid and the liquid itself will force those having agreater specific gravity than the liquid to gravitate toward and be deposited at the periphery of the drum where they will be retained by disks, and those having'a lighter specific gravity the? the liquid will gravitate and be deposite at the axis and be retained by disks, the clarified liquid being drawn oil through an opening midway between the periphery and the axis.
The drum is so arranged that when the spaces between the disks are filled with im= purities the drum can be cleansed by flushmg and the impurities washed out, or. the disks can be withdrawn and cleaned, if desired.
In the accompanying drawings forming art of this speclfication, and in which simiar. characters of reference denote corresponding partsFigure 1 ista vertical sec-v tional view of the invention in operative condition indicating the separation of the Iiquidsof-differentspecific gravities. Fig. 2 IS a similar view illustrating the inentionwith its parts assembled forthe flushing or residing at in thp'county of Cook and State ofand at its up rotate with the shaft cleansing operation. Fig. 3 is a horizontal sectional view. Fig.4 is a top plan view.
Refer-rm now more "particularly to. the accompanying drawings, the reference char acter 1 indicates a drum mounted for rotation upon the central shaft 2 which is mounted at its lower end in the bearing 3 er end through a supporting part 4, the said shaft bein provided with a longitudinal bore 5 exten ing substantially throughout its entire length and at its upper -end provided with a funnel 6 which has communication with said here for a purpose presently explained, the said central shaft also having sets of openings 7 leading from its bore to the interior of an internal drum 8 mounted within the outer drum 1 and rotatable with the latter upon said shaft 2.
The drums are arranged so that thcv may driven through any suitable power (not shown), and which may have connection with the drive ully 9 secured to the upper end of the'sha 2, as'shown.
Two sets of shelves 10 and 11 are removably'and slidably secured to the inner sure face or walls of the outerand inner drums ,1 and 8, respectively, and preferably .in
alineinent. These shelves 10 and 11 m be secured in position by connection with the inner walls of the drums, but are preferably supported loosely against the drums hy the "uprights 12 and 13, respectively, which are provided with a plurality of notches 14 and 15, respectively, for the reception of the corresponding edges of said shelves. These shelves 10 and 11 are adapted to retain the heavier impurities, as shown in heavy lines in Fig. 1.
Likewise disposed against the outer sur- -face of the inner drum 8 is a plurali of shelves 16 which are further supports by the uprights 17 provided with notches 18 to receive the outer edges of said shelves, the character 19 indicating another lurality of shelves which are secured to t e shaft 2 with their peripheries fitted in the notches 20 of the uprightsupporting elements 21. The plurality of shelves 16 and 19 retain the lighter impurities, as shown by the heavv lines inFi 1.
2 when the latter is The liquid to e clarified is let into the inner drums by means of'a valved inlet 22' through an opening 23 disposed at the top of the inner drum and centrally thereof, the incoming liquid falling upon the shelf 19 disposed above the central vertically alining shelves 19, passes between the shelves 11 and 19, there being sets of shelves 24 disposed immediatelybeneath the openings or passages between the shelves 11 and 19 so as to arrest the flow of liquid and separate the current to assist in separating the impurities as the liquid passes downwardly toward the bottom of the inner drum. As shown, the inner drum is spaced at its lower end from the bottom of the outer drum so that the liquid may finally pass upwardly in the machine between the inner and outer drums, as indicated by'arrows in the accompanying drawings, there being shelves 25 secured to the lower edge of the inner drum 8, which are wider than the before-mentioned shelves, adapted to hold back the liquid and force it between both sets of shelves 11 and 19 until the spaces between the latter disks are full of liquid. The separating shelves 24 divide the current, giving the impurities an initial start in 'the direction in which the united forces of the specific gravities and the centrifu a] force is drawing them, the bodies of the liquid between the shelves being nearly at rest and the combined forces acting on them with the result that the heavier impurities are deposited between the shelves 11 and the lighter impurities deposited between the shelves 19. The liquid finally asses under the shelves 25 at the bottom of he inner drum and flows upwardly between the shelves 10 and 16 arran ed between the inner and outer drums an at the top of the s ace between the inner and outer drums into uid is held back by the top of the outer rum until the spaces between the shelves 10 and 16 are full and the same action has taken place as in the inner drum, the remaining impurities being deposited between the two sets of shelves 10 and 16, the clarified liquid flowing out through the outlets 26 at the-top of the drum and which outlets are formed between the two removable closures 27 and 28.
When the spaces between the shelves become filled with impurities,- the drum can be cleaned by removing the sectional covers 27 and 28 and subsequently removing the shelves and their su porting upright elements; or if preferred the machine may be cleaned or cleansed without removing the various arts thereof. In order to cleanse the mac ine without removing the various parts I provide the outer and inner drums 1 an 8, respectivel with vertical offsets 29 and 30, respective y, each of which is provided with a vertical bore 31 and 32, respectively, communicating with which bores are the a ertures 33 and 34, respectively.
Fitted 1n the bores 31 and 32 are the valve rods 35 and 36, respectively, each having apertures 37 adapted to be thrown into and out of alinement with the apertures 33 and 34 of the drums, they being out of alinenient with the perforations of the latter during the clarifying operation, and in alinement therewith when it is desired to flush the drums. Thus by shutting oil the valved inlet 2?. and turning on the valved inlet 37 from any suitable water source, water mav be let into the bore 5 of the shaft 2, which will pass outwardly through the openings 7 in the shaft and gradually work from the bottom upwardly in the outer and inner drums 1 and 8, respectively, incident to the centrifugal action of the drums passing through the apertures 34 of the inner drum and also through the apertures 33 in the outer drum, the valve rods 35 and 36 being turned so that their openings 37 may aline withthe apertures 33 and 34 prior to turning on the valved water inlet 37'. In this way, the machine may be thoroughly flushed and after flushing, the valve rods 35 and 36 are turned so that their openings 37 will be out of alinement with the apertures 33 and 34 of the outer and inner drums, respectively, when the machine will be ready to resume the clarifying operation.
Any suitable means may be employed for operatin the valve rods 35 and 36, but, as shown, t 1e valve rods 36 extend through the top of the machine and are provided with the oppositely disposed projections 38 and 39 (see Fig. 4). These projections.38 and 39 are so arranged that during the clarifying operation they will not engage the links 40 and 41 pivoted at 42 to the pivot block 43 and at 44 and 45, respectively, to the lever 46, the said projections 38 and 39 passing between said links 40 and 41 during the clarifyin operation. When it is desired to flush tie machine, the lever 46 is forced inwardly, causing the link 40 to engage the projection 38 on each valve rod 36 and turn the latter so that its 0 enings 37 may aline with the openings 34 o the inner drum to permit of the passage of water therethrough. In the same way, the valve rods 35 of the outer drum 1 may be manip'ulated by the lever 47 of the same form, construction and arrangement as the lever 46, includin the parts associated therewith, the only di erence being that the valve rods 35 are extending up vardly into the outer drum, while the valve rods 36 of the inner drum are extended downwardly. To resume the clarifying operation after the flushing of the machine, the levers 46 and 47 are pulled outwardly, which causes their links 41 to engage the projections 39 of the valve rods and turn the latter to close the openings 33 and 34 of the outer and inner drums, respectively, so that the clarifying of the liquid may be continued. It will thus be eeimdifor mtationitwo sets oishelves-arranged mgy; be arranged adjustebly within the "In -other WOI'dS, more notches than are in uprights may be employed, n as-isobviougto. receive the shelves, so that they have adjustment with relation to one-another? or together, within the drums.
In any event, the shelves may be readily renoved fromthe drum when desired, as has 18 een alrendj stated.
What is claimed is: g 1. Ina. centrifugal separator, an inner o andan outerdrum, sets'of shelves betweenthe inner-.and-outer drums, sets of .shelves 29 within theinnerdrum and means wherebythe drums maybe-rotated, the shelves within the-inner drum- .imd -the shelves bet-Ween the M inner. andouter drums 'being arranged to eflect u deposit of the'heavier impu ities at therperipheries --ofgthe drums and the lighter impurities atthe thereof and' permit of tliegescape of the r'clar'ified liquid from beulsnid -depositedilpplll'itifig; f :2. Inga. oentrifugulsseparator; an inner Mrwdmrouterdrum; thedmms being mounted rtio: .rota,te, between-the Q inner-end outem-drumrg;undishelvevwitlfin;' I the;':inner..drum,- the shelves-being arranged vrhe rehy onrofntion of the-drums the-imr permittedto esca fromrth'e-"drums 3 In. a, oentri gal'maehine; inner mglhnhouter-drum the dnmis 'lieinggmount 'r between th'erdmms .nnd two sets-offsheltes I arranged Eiyrithing the sinner-drum one ,set of shelves in -the ;space hebween -the drums andbneset-offshelves in the-inner drum be- 457 ingnddpted=: to-l'retuin.-thhhhavier im urities of the,= -l1 il ridiand v'the-roth'er set of sh es hetweenl-the'di'umsfnndj-twithin the inner drum lieingjnditptediiog retain the lighter impurities oftthe liquidl-l' j tr-1n machine, a. rotatable drum, -two of shelves in the drum, one set'ofshelves-amn to retain theheav-i'er:
impurities of the liquid and the otherstofflshelves being arranged to: retain. the. lighter impurities of the uid duri rotation of the-drum, and ano er set ofs elvescoiiperating the aforesaid-shelves to and divide .theflow of'liquid between .said"other setsiof.shelves. n. h v
5, Inn .centrifugnl separator en" inner: ands-u outer drum, the'drums-be mount-- ed fol-rotation 'together,- ..two-sets o 'shelves arranged between the drums, two of" shelves 0. withinl'the inner drum,.one
set of shelves 111' the spaoe betweenthe 'hemg airran ed to retain the heavier impurities am? the other sets of shelves between the drums being arranged to retain tin lighter impurities, one set of shelves in the inner drum being adapted to retain the heavier impurities and one set therein being adapted to retain the lighter impurities, and a set of shelvescoiipemtin'g with each of the aforesaid two sets of shelves to are rest and divide the eurrent to give the impuritie in the liquid an initial niovernent in thedizection in which they are to be degmsu'xd. V
6. In a centrifugal separfitor, a rotatable v inner drum and a. rotatable outer drum, spaced apart, shelves arranged in the spaee between the drums, and s elves arranged within the inner drum so that theliquid may, pass over the shelves of the inner drum mid upwardly in the space --between the CllillllS and be acted; upon by the shelves in its passage through the inner drum and upweldly "through the space between t 'e drums to; pirate:- the. heavier and lighter impurities 1" much other and from the liqui and deposit the impurities upon 0'- site. sides 9 "the liquid, thereby; the liquidin its, assage through e inner ugly between the drums in.- eident to'the centrifugal force generated by rotation of ithe'drums and 'thle contet hi the liquid. 5 with the. disks nndfv the escapeof? liquidlfrom' between the: eposit'ed bodies of bl fi tr di mspaeed' npnrt, shelves arrnng'ediiii thfi hke between the drums, shelves arranged wi in the'inner drum, the inner shortiofirtheg botton of 'fthflsouter; drum -sow thatathe. liggtmay iiassiv v lt-heishelves of theinner :in'ethespnco fu n between the an .iiietuetetlrupon by the shelves in its pmge through the inner drum and u vvardly through the-space between the ru ns: to seperate the heavier and lighter each-otherand fromth'e ligui Land deposit?the impurities upon :0Pp0Slte'SldS: ofitheliquid, therebz separatlng thealiquid in its throiii the innerxdrum nnd upwu ly hetweem eincident-itothe-nentrifugal :foroe genstated-by rotation-fifths: drumsund the com 'taoLof the liquid with the shelves-gent! permittinfi' thesescape of 1 the. is from tween :thedepositedfbhdis of im'; purities t-andi'shelves' erranged rto zhold-ibaack 'theflowof liquid-ftemporarfly in its psssnge :Eri nn"1theiinner 'drunr to.the spaee :between- 8.:- In .a -nentrifiigalssepfaratof, @lal'fltfllh-bl-f inner. audn rotetable outeniiilriim r apart shelterarranged inthespaoe between 'thedrumsvslielvesmrranged 'mthim the inner drumstheiinnerzdrumlterminntingfilso f liquid 12o.
shelves between the short of the bottom of the outer drum so that the liquid may pass over the shelves of the inner drum and upwardly in the space between the drums and be acted upon by the shelves in its passage through the inner drum and u wardly through the space between the rums, thereby separating the liquid in its passage through the inner drum and upwardly between the drums incident to the centrifugal force generated by rotation of the drums and the contact of the liquid with the shelves, shelves arranged to hold back the flow of liquid temporarily in its passage from the inner drum to the space between the drums, and other shelves arranged for cooperation with the first mentioned disks within the inner drum and in the space between the drums to arrest and divide the liquid, thereby giving the liquid an initial movement in the direction in which they are drawn.
9. In a centrifugal separator, the combination with an inner and an outer drum spaced apart, means whereby the drums may be rotated, the inner drum having an inlet to receive the liquid and the outer drum having an outlet to discharge the clarified liquid, shelves within the inner drum and drums, otr shelves arranged to retard and divide the liquid in the inner drum prior to its passa e to the space between the drums, and the ischarge outlet of the outer drum bein arranged to retard movement of the liquid to force the liquid between the shelves whereby the impurities may be deposited and retained between the shelves.
10. In a centrifugal separator, an inner drum and an outer drum spaced apart, means whereby the drums may be rotated, shelves in the inner drum, and shelves between the drums, the shelves being constructed and arranged to permit the clarified liquid to be thrown ofi while the impurities are held between the shelves.
11. In a centrifugal separator, nation with an outer drum provided with openings in its walls, valve rods disposed in the walls of the outer drum for cooperation with said valve openings, means whereby the valve rods may be operated to open and close said valve openings, a second drum disposed within the outer drum with its side walls in spaced relation thereto and with its side walls provided with valve openings, valve rods mou ted in the walls of the inner drum for cooperation with the valve openings thereof, means whereby the valve rods may be operated to open and close the valve openings of the inner drum, disks d sposed within the inner drum, shelves disposed in the space between the inner and outer drums, and means whereby the drums may be rotated. 7
12. In a centrifugal separator, a hollow the combishaft, having 0 en'ings communicating with the hollow of t e shaft, an outer drum provided with valve openings in its side walls valve rods fitted in the side walls of the outer drum for cooperation with the valve openings thereof, said outer drum being rotatable with said shaft, means whereby the shaft may be rotated, an inner drum disposed within the outer drum with its side walls in spaced relation to the side walls of the outer drum and whose side walls are provided with a plurality of valve 0 enings,
valve rods disposed in the walls of t e inner drum for coiiperation with the valve openings of the inner drum, means whereby the valve rods of the inner drum may be operated to open and close the valve openings of the inner drum, means to convey water to the hollow sha'ft, shelves in the inner drum, and shelves in the space between the drums.
13. In a centrifugal separator, a rotatable drum whose axis is arranged centrally there of, a second drum within the first mentioned drum and disposed in spaced relation thereto, sets of shelves in the inner drum, one set bein arranged at the periphery thereof and t e other set at the axis thereof, shelves in the outer drum, the shelves in the outer drum being constructed and arranged one set at the periphery thereof and the other set in spaced relation to the eri hery set of shelves, means for rotating t e rums together, and upon rotation of the drums the shelves effecting a deposit of the heavier impurities at the peripheries and the other shelves effecting a deposit of the lighter imurities and permitting escape of the claried liquid from between the bodies of deposited impurities.
14. In a centrifugal separato two concentric drums, means for rotating the drums, and means at the eripheries of the drums within the same a a ted to efi'eet a deposit of and to retain the lieavier impurities separated by rotation of said drums.
15. In a centrifugal separator, a drum, a second drum within the first mentioned drum, means for rotating the drums, means for passing liquids through one drum and subsequently through the second drum, and means placed within said drums for retaining the impurities separated from said liquids by the centrifugal force through the rotation of the drums, and permitting the escape of the clarified liquid while the impurities are retained within the drum.
16. A centrifugal separator com rising a drum, a second drum within the rst mentioned drum, an inlet to the first mentioned drum, an outlet from the second named drum, a passage between the drums, means for retarding liquid passing through said drums, means for rotating the drums, and means for retaining impurities at both the periphery and axis of each of said drums and permitting the escape of the clarified liquid.
17. 'A centrifugal separator comprising a drum adapted for rotation,,a second drum within the first mentioned drum concentric therewith and ada ted for rotation thereby, an inlet to said dist mentioned drum, an outlet from the second mentioned drum, a passage between the drums, means for retarding the flow of liquids through the drums, means for rotating the drums, means for retaining the heavier impuritiesthrown to the peripheries of the drums in rotation, and means for retaining the lighter impurities'at the axis of thedrum.
18. A centrifugal separator comprising a drum, means for conveying 1i uids to the drum, means for retarding t e flow of liquids through the drum, means to retain the heavier impurities thrown to the periphcry of the drum by rotation thereof, and means for retaining the lighter impurities drawn to the center of the drum by rotation thereof, the two last mentioned means being disposed directly opposite each other.
19. In a centrifugal machine, a rotatable drum means constructed and arranged within the drum. to retain the heavier impurities of the liquid, means constructed and arranged in the drum to retain the lighter impurities of the liquid, and means constructed and arranged to cooperate with both. of the aforesaid means to retard and divide the flow of the liquid into cotiperative relation with both of the first mentioned means.
20. In a centrifugal machine, an inner and an outer rotatable drum, the bottom of the inner drum being spaced from the bottom of the outer drum to establish communication between the drums, means constructed and arranged to convey the liquid to the inner drum, the liquid assing downwardly through the inner rum and u wardly through the outer drum and discharged from the latter, and means constructed and arranged within the drums to retain the heavier and lighter impurities in spaced bodies and permit the liquid to flow throu h the drums between the spaced bodies of impurities and discharged while said impurities are held in rest within the drums. H,
21. In a centrifugal separator, a rotatable drum and sets of shelves disposed within the drum, one set of shelves being opposite to another set of shelves and arranged within the drum with one set of shelves at the periphery and the other set at the axis, whereby the centrifugal force generated-by the revolving drum will efl'ect a de osit of the heavier impurities at the perip cry of the drum and a deposit of the lighter impurities at the axis of the drum and permit the escape of the clarified liquid from between said impurities.
22. In a centrifugal separator, a rotatable drum and sets of shelves disposed within the drum and arranged to provide spaces at the periphery and also at the axis of the drum with a vertical passage between the opposite spaces whereby the centrifugal force generated by the revolving drum will effect a deposit of the heavier impurities in the spaces at the periphery of the drum and a deposit of the lighter impurities in the spaces at the axis of the drum out of the path of the current of the clarified liquid and permit the escape of the clarified liquid from between said impurities.
23. In a centrifugal separator, a rotatable drum and sets of shelves disposed within the drum, the shelves being arranged whereby the centrifugal force generated by the revolving drum will effect a deposit of heavier impurities at the periphery of the drum and a deposit of the lighter impurities at the axis-thereof and permit the escape of the clarified liquid from the space between said deposited impurities, whereby the deposited impurities are not subjected to the strong current of the clarified liquid which passes through the space between the deposited impurities.
24. A centrifugal liquid clarifier comprising a drum having a single discharge opening at its top, means for rotating the drum, and means constructed and arranged at the axis and also at the periphery of the drum to retain im urities deposited at the peripher and at the axis of the drum and arrange to protect the deposited impurities from the action of the clarified liquid which escapes only through said single discharge opening from between said impurities.
In testimon whereof I afiix my signature in presence 0 two witnesses.
* GEORGE E. SANFORD.
OLOF. A. CARLsoN, EDU. SHANAHAN.