US926859A - Centrifugal separator. - Google Patents

Description

J. A. B. DOMINGUEZ.

GENTRIFUGAL SEPARATOE.

APPLICATION FILED JAN. 24, 190s.

926,859. I Patented Jul 6, 1909.

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WITNESSES N N INVENTOH WITNESSES Patented July 6, 1909.

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ATTORNEYS Patented July 6, 1909. ssnzsws-snnm a.

WITNESSES BYMF/QOI ATTORNEYS J. A. B. DOMINGUEZ. GENTRIFUGAL J'SEPARATOR. APPLICATION FILED JAN. 24, 1908.

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w. A. B. DOMINGUEZ.

GENTRIFUGAL SEPARATOR.

APPLIIOATIONPILED JAN. 24, 1908.

926,859,, Patented July 6, 1909 5 SHEETS-SHEET 5 ATTORNEYS rosE. ANTONIOBRUNO nonmounz, or GUAYAMA, ron'ro RICO.

qBNTRIFUQA-L sum-Baron.

Bot 826,858.

s e n an n ,0: Letters Patent.

Patented July 6; 190.9.

Application filed January 2;, 190a, semi, m. naeao,

v To all wlwm inma/y, concern:

Be it known that? J OSIl". Anromo Bnuno Doumounz, a citiz'e riof Porto Rico, a. d a resident of.the,d1st 1cti of Guayama, orto Rico, have invented; a new and Improved- GentrifugalSsarator, of which thefollowin isaqfull; c ear andzexact. description.

yinvention relatesto centrifugal separators, admittin particularly a p sugar. andrmo asses. from the crude product known as masseecuite, or in, other, words, from the material: received from .the evaporators. I

Among the. several. objects. of my invzenr tion are the following; 1*, torenden the sepa ration continuous 'inthe sense that the masse cuite-is supplied continuously and the sugar and molassesarefed out ofthe machinecom tinuously; cuitewhile subjectingitto, the action of con trifugal force in conditionshda' ted. to pro:- rnote drainage; III, to avoid t e necessity for excessive speeds, by fire uently alternating the direction in whic the. rotary force is applied to obtain centrifugal action;

1 IV, to cause the mass e cuite t jrbetransferred from. onescreen to another, thevarious succeeding screens having successively increased centrifugal action; V, totake. advantage of. theprinciple of. inertia so as tocause the latter toexert pressure due tothesudden stoppage ofthe masse cuite; VI, to. provide various improved details of construction admit- 35 ting of general use in machines of. thistype.

' Among the principles embodiedi my machine is that of developing eentrifugal'force in a re idly rotating body and that ofcausing suc body to exert increased pressure,if its direction of motion is suddenly reversed. Reference is to be had to the. accompany,- ing drawings forming a part .of this specification, in which similar characters of reference indicate corresponding parts in all the figures.

Figure 1 is a side elevation partly broken away, and showing the gearing for rotating the revolublc parts, and also showing the system of lubrication for this gearing; Fig. 2

is a plan View of the external casing, the discharge chrrte lpr the molasses, and one of the its used E- r 1111-) eating certain movable P i. paits; Fig. :3 is a fragmentary vertical sectionthrougli' the outer and inner casings,

of; general use but more. cable to the separation of ,whereby the molasses. and. other stances make their escape.

ILto thoroughly bafiie the inasse.

and-the various sieves arrangeddn annular, rows and moving in op ,osite directions; Eig. an a fragmentary p an, partly in sec: tion, showing the concentric arrangement. of the sieves inannulan rows, the sieves of each row alternatin in direction of rotation with. the sieves ofrt e-next, row; Fig. 5 isanene lar ed: fragmentary view showing the tai s of the sieves. and. their. mountings, and also showinghow one annular. row of.sieves turns in a direction oppositetothat; of an other row of. sieves; and. Fig. ti' isra, fragmentary section showing some of. the-V sieves inelevation and disclosinghow thesameare' mounted, this view also'showing, the slots iquid sub- An outer cylinder is shown at 7 and is bolted. rigidly upon an. annular casting .8 provided Wit-1 The upper. edge of; the cylinder 7 is provided with an inwardly projecting flange 11. The parts thus described together constitute a stationary member which I designate as the outer casing. Mountedv centrally within this outer casing (see Fig. 3) is an annular spider 12 provided with radially projecting braces 13 engagingthe casin 8 and supporting the spider. concentricaly to the outer casing. An annular bottom piece 14 '(see Fig. 3) is provided with walls 15, 16, the latter inclining. inwardly, the piece and walls just mentioned together constituting. an annular trough-like member which I designate as the inner casing. and which is supported by brackets 18 resting on the braces 13. Said casing is used for collecting the molasses, or other draina e, from the raw sugar, and is providedyvit chute 17 whereb the products thus received are remove from the machine.

A bearing block 18, of hollow form, is provided with a flange 19 through which pass threaded bolts. 20, the latter engagin the spider 12 so as to support the bearing lock 18 from the spider. By turning the bolts 20 the height of the bearin block 18, rela tively to the spider 12, may e varied or ad 'usted at will. The bearing block 18 is pro.- vi'ded with a cylindrical portion 21 constituting a step bearing, this part being provided with an enlarged cylindrical portion 22. Mounted within the step bearmg 21 is I. step 23 secured rigidly in position by aid of feet 9 and Witha hopper 10.

end, so as to constitute a key 24 and provided with a radially disposed channel/25. A revoluble journal 26 rests upon. the bearing block 23 and is provided with a small verticallydisposed chan 26 is provided with a radially disposed pas-,

sage 29, and is hollowed out at its upper a step bearing. An annular bearing block 31 is .supported by the journal 26 and is provided with a radially disposed passage 32. This bearing block 31 is secured rigidly a key 33. The upper portion of the journal 26 is spread out and bolted rigidly to a disk 34 which is thus rendered revoluble with the journal. Secured upon the disk 34 and extending uptwirdly therefrom .are a number of rings 35 of metal each provided at its bottom with radially disposed slots 36. The

liquids discharged by the. upper rings 44 hereinafter described and those discharged by the lower rings 35 are'mixed together and are driven out throughthe slots 36 in the rings 35, bythe act1on of centrifugal force. These liquids, in passing outwar ly through the slots 36,

of the lower disk 34, and after impin ing against the inner surface of the ring mp A number of cones. with each ring 35 andinto the receptacle 14. 37 are connected adapted to discharge material therethrough when subjected to the action of centrifugal force. The cones 37 are thus arranged in circular rows disposed concentrically. Parallel with each ring 35 is another ring 38 sup orted upon the cones'37 and revoluble wit these cones and with the disk 34.

Arevoluble disk 39 is bolted rigidly to a flange 40 which is integral with a hub 41, the latter being provided with an annular 'ournal 42 resting uponthe annular bearing block 31. Bolts 40 are used for the purpose oficonnecting the disk 39'with the flange 40.

The hub 41 is provided with a ertures 43 of substantially conical form, an

is made 1101- low forthe purpose of receiving material to be discharged into the cones 37 of the inner row, as hereinafter explained.

A numbef of rings 44 of metal are connected rigidly with the disk 39 and are revoluble therewith. These rings are plain and not provided with slots, but are smooth at their lower edges,and' their upper and lower edges extendabove andbelow the upper and lower edges of the rings 35. An outer ring 45, also of metal, is mounted near the outer peripheral edge of the'di'sk 39 and is provided with strengthening hands 46. This ring 45 extends a little distance belQw the dial- 134.

carried by the lower disk to the journal 26 by aid of connected with one disk will'be rotated in one direction, while the gear 54 which isconglide upon the surface disk will be rotated in 68 connected pump 62. A

Anumber of cones 47, similar to the cones 37 above described are mounted upon the respective rings 44, 45, and suported by these cones are rings 50, the latter being revoluble therewith and with the disk 39. Each cone 47 is provided with a mutilation 47 and is fitted with a sieve 49 of conical form.- The ring 50, as may be seen in Fig. 5, is made up of separate plates, each late being connected with a cone 47. rackets 51 are used for supporting the rings carried by the upper disk 39. Brackets 52 are similarly used for supporting the rings 34. I i A tubular shaft 53 is connected rigidly with the hub 42 and is provided at its up er end withja be'vel gear 54. The latter meslies with a bevel gear 55 mounted upon a stub shaft 56, this stub shaft being supported by a bearing 57. The bearin is carried by a hanger 59. Mounted rigidly upon the stub shaft56 is a pulley 58 for supplying power to the movable parts. The hanger is supported from a horizontal beam 60. Meshing with the bevel gear 55 is a bevel gear 61 which is secured to a solid shaft 63 fitting into the tubular shaft 53, and having secured thereto, the journal 26 with which the lower disk 34 is connected. It will be evident that when the shaft '56 is rotated the gear 61 which is nected with the pther the o posite dir'efion.

A orce-feed ,u p is shown supported by a cam 60.

63 is 'a revoluble solid shaft extending. entirely through the tubular shaft 53.. .The shaft 63 is pro'vided'with an oilbpassage 64 disposed axially in relation thereto, aslindi cated in Fig. 1. A pipe 63 leads from the 105 pump 62 to the shaft 63,,being connected. therewith by a stuffing box 64*. A 65, having the form of an annular ring, encircles the'solid shaft 63 and is fitted into the tubular shaft 53, as indicated in Fig.1.

with a assage 66, so as to enable the lubrieating iquid to move downwardly inter-- mediate of the solid shaft 63 and tubular shaft 53. i v

A casing 67 incloses the 61. This casing is provided with a bottom with which is a pipe 69 lead-z ing upwardly and communicating with the pump 62 by aid of a nects the upper portion 22 of the cup bearing 21 with the pipe 70, and'thence with the assage 72 is provided in the shaft 63 (see 1 ig. 3) and a packing 73 en" circles this shaft and engages the tubular 125 shaft v53. 3 I

The operation of Oilor other lubricating liquid is forced by the pump 62 downwardly through the pipe 63 and into the passage 64 at 62 and is packing The passage 64 in the solid shaft 63cornmun1catesa 1 1' bevel gears 54, 55,

pipe 70. Apipe 71 00m my device is as follows:

of the shaft 63. The .136

gles to the portions and continuous.

liquid thence passes downwardly through the assage on wluch 1s spaced intermediate of the solid shaft ca: and the-tubular shaft 53,

the11ce through passages 7'3, 2.5 and 2, to the pipe 71, bemg thence returned to the pumpthrough pipe To. 11 excess of the lubricating liquid escaping within the casing (57 (see Fig. Upasses u'pwardly through the pipe 6%) to the pump, thus joining the liquid carried up by the pipe 71. The lubrication of the movable parts is thus made automatic lower now being applied to the pulley .18, the bevel gears are thereby turned, and the disss 34 and 39 are rotated in opposite directions. The masse-cuite being fed continuously into the huh 41 is forced outwardly by centrifugal force. As the masse-cuite passes through the a 1ertures 43, of substantially conical l'orm,'the cen-' trifugal force at this point is comparatiyely weak. After passing through the apertures 43 the masse-cuite enters the inner row o' cones 37, the direction of rotation of these cones being opposite to that of the hub 41, and the motion being somewhat faster. it may be notedin this connection that the centrifugal force does not separate the molasses from the sugar. The only ofiice performed by the centrifugal force is to propel the massecuite so as to force it to jump from one cone to the next and to cause the molasses, when set free by'impact of the massc cuite, to run out of the machine. What really causesthe molasses to be set free is the impact of the masse cuite against the inside of the cones, this being due to the sudden battling effect or abrupt change in the direct-ion of the motion of the masse cuite as it jumps from one set of cones to the next. The idea is, as far as practicable, to knock each particle of masse cuite first in one direction and then in another direction. T he force of impact thus exerted upon the masse cuite acts at right angles to the direction of centrifugal-force and causes the molasses to go through the sieves in a direction substantially at right anof the sieve where the impact takes place. cised not to confound the impact effect just described with the ordinary centrifugal e. feet in machines heretofore employed. The liquid thus removed now passes downwardly and outwardly, assing through the various slots 36 and fina ly impinges against the ring 45, thence dropping downwardly and being drained oil by the chute 17. The masse cuite passes from ring to ring in succession, and each succeeding ring reached by it has a higher speed than the other rings which have heretofore operated upon it: As it passes gradually outward from the center, it i11- creases speed, its motion is reversed, and it leaves one set of cones and reaches another.

The result is that the masse cult-e is turned over and over, being thus thoroughly battled,

Care should be eXer molasses or other liquid, is enabled todischarge that portion, no matter where it was originally lodged in the mass. noted that each successive impact of a given mass of masse cuite is progressively more violent than the impact preceding. The effeet of increasing the strength of the successive impacts as the masse cuite' moves from one set of sieves to the next is to cause the molasses to be forced out more and more at every successive change in the direction of motion. The sugar being relieved, to'a great extent. of its molasses, is finally discharged through the ring 4;- and impinges against the cylinder 7, thence dropping downwardly into the hopper 1t), and piles up below the machine. There is only sufficient clearance between the rings to permit them to rotate freely, and the sugar passes directly from one cone to the other.

The amount of molasses left in the sugar may be regulated at-will by controlling the speed of the disks. in doing'this the force of the several impacts 1s also regulated. Any desired polarizationcan thus be obtained. If it be desired to obtain a maximum polarization by means of the washing process, water is thrown continuously into the apparatus along'wit-h the masse cuite. This ining the molasses moreiluid and causing it to be expelled more thoroughly than would otherwise be the case.

To clean the apparatus, water is poured in continuously. This water follows the course of the molasses, and also the course of the sugar. The result is that all parts accessible to the sugar and to the molasses are thoroughly cleaned by the water. The cones may be easily removed, as may be seen from- Fig. 5.

Having thus described my invention, I claim as new and desire to secure by Letters Patent disposed concentrically, and means for rotating said sieves in opposite directions for the purpose of battling a material to be operated upon by said sieves. I I 2. The combination of a pair of revoluble members adapted to rotate in opposite directions, means for actuating said rcvolublc members, a plurality of sieves mountedupon one of sand revoluble members and adapted to operate upon a material and to discharge said material, and a plurality of sieves mounted upon the other of said revolublo members for thepurpose of receiving said material discharged from the other sieves.

3. The combination of a plurality of revoluble members, sieves of conical l'orm supported thereby and reyoluble tllercnith, another revoluble member, sicycs of conical form mounted thereupon and adapted to receive a material discharged from said lirstcreases the limpidity of the mixture, render- 1. The combination of a plurality of sieves and any part of it containi1'1g any trace of I It will be sieve of substantiallv ber, a substantially conical member mounted thereupon and provided with a mutilation, a u conical form mounted within said substantially conical member,

. and means for actuating said revolu b le ,rality said sieves being member.

. 5 In a device of the ilass described, a plu- Of members carrying conical sieves, arranged in circular form, the sieves of one member concentric with the sieves of the other and means for rotating said members in opposite directions.

6. The combination of a plurality of disks,

means for rotating the same in opposite directions, a plurality of sieves mounted upon one of said disks, a plurality of sieves mounted upon the other'of said disks, the sieves upon each disk being arranged in circular rows, each-row of sieves upon one diskbein'g concentric with the roW of sieves u on the other disk, and means for turning said disks in 0p osite directions. I

7. n a separator, a'plurality of annular series of tio'n, means for feeding masse cuite or the like to the inner sieve, and means forrotating said sievesin opposite directions.

8". In a separator, a plurality of annular series of conicalsleves, the series being consieves arranged 1n concentric rela-' centric and the sieves arranged radially with their bases inward, and means for rotating the sieves in opposite directions.

In testimony whereof I have signed my name to this specification in the. presence of two'subscribing witnesses.

JOSE ANTONIO BRUNO DOMINGUEZ.

Witnesses: p

MIGUEL OANELLAS VERGARA, RAMoN 'CoLoMER.

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