US827903A - Centrifugal separator. - Google Patents

Description

PATENTED AUG. '7, 1906. J. J. BERRIGAN. CENTRIPUGAL SEPARATOR.

APPLICATION FILED Nov. 7, 1905 s SHEETS-SHEET 1.

i PATENTBD AUG. 7, 1906.

' J. J. BERRIGAN.

GENTRIPUGAL SEPARATOR.

APPLICATION FILED NOV. 7. 1905.

3 SHEETS-SHEET Z.

INVENTOR BY/@MJ @ATTRN Y -vv|TNEssES= v pw N0. 827,903. PATENTED AUG. '7, 1906.

- J. J. BERRIGAN.

CENTRIFUGAL SEPARATOR- APPLIUATION FILED NOV. 7, 1905.

3 SHEETS-SHEET 3.

mmm

WITNESSES: INVENTOR ATTORNEY J. BERRIGAN, OF

PATENT oEErcE.

ORANGE, NEW JERSEY.

CENTRIFUGAL SEPARATOR.

No. s273903.

Specification of Letters Patent.

Patented Aug. 7, 1906.

Application filed November 7, 1905. Serial No. 286.194.

To a/ZZ whom. it may concern:

Beit known that I, JOHN J. BERRIGAN, of

Orange, Essex county, New Jersey, have invented a new and useful Improvement in Centrifugal Separators, of which the follow-` ing is aspeciflcation.

The lnvention relates to centrifugal separators for solids and liquids.

The rinciple of the invention consists in subjecting the combined solids and liquids to separation in order to remove the greater part of the li uid, then conveying the residual solid, wit such liquid as may remain combined with it, through a series of frustoconical chambers disposed in a rotary cylinder, with their common central axis arallel 'to the cylinder-axis of rotation, (an hence eccentricall placed in said cylinder,) in each of which c ambers the solid materials are first projected outwardly centrifugally and then moved centripetallyto the central outlet leading to the next chamber. The liquid accumulates at the point of greatest eccen-fr tricity of each chamber and may escape therefrom by an independent outlet therein, and the solid materia is dried by being conveyed out of the accumulated liquid in each chamber and around the substantially dry inner periphery thereof, while at the same time it is moved onward to the chamber next in succession, and finally to the outlet from the machine.

The invention consists in the construction hereinafter set forth, which embodies said princi le, and in the particular combinations reqixte hin the claims. d F A t eaccom an rawin s, igure lis a vertical longitudii-iiv sectior of the machine. Fig. 2 is an enlarged similar section of the feed end of the machine. Fig. 3 is a sec- `tion-on the line 3 3 of Fig. 1.

Similar numbers and letters of reference indicate like parts.

1 is a horizontal cylinder within which the working parts' of the machine are inclosed. On the head 2 of said cylinder is a hollowA trunnion, received in a bearing in the fixed standard 3. Bolted to the op osite head 4 of saidy cylinder is a cylindica casing 5, on which is formed a hollow trunnion, which is received in a bearing inthe fixed standard 6. Standards 3 and 6 rest upon the bed 7 ofthe machine. The driving-pulley 8 is fast upon the. cylinder-trunnion. Power is communicated: to said pulley by any suitable belt,

(not shown,) and in that/Way cylinder 1 is caused to rotate.

9 is the feed-hopper, supported on bracket 10, extending from standard 3.

The combined solid and liquid materials to be separated are conveyed into the cylinder of which is supported at one end ill a bearing on the bracket 10 and carries thesprocketwheel 12. The other end'of said conveyer- Ashaft is stepped in a wall of a chamber 13, formed upon the inside of the {Jead 2, which chamber by means of the inc ined duct 14 communicates with the interior of a cylinder 15, which is eccentrically disposed within the b cks 16 and ring i7. One end 1.8 of the cylinder 15 is frusto-conical and communicates with an outlet.- duct 19, which extends through the wall of cylinder 1 and communicates with-the fixed annular chamber 20, in which the cylinder 1 freely turns.

Passing through the hollow trunnion at the delivery end of the machine and entering the casing 5 is a shaft 21, which is held in stationary position by a lever-arm 22, fast on the outer end of said shaft,which lever-arm is connected by a rod 23 with the bed of the machine. Any other convenient means may be used for holding said shaft stationary. Within the casing 5 the shaft 21 carries a pinion 24, which engages with a inion 25 on a shaft journaled in the casingead and the head 4 of cylinder 1. On the same shaft as pinion 25 is a pinion 26, which enga es with a gear 27 on the end of a shaft 28, whic extends axially through the c linder 15. Said vshaft 28 is supported in ro ler-bearings in sleeves 29 `and 30, formed, respectively, on the head 4 of cylinder 1 and the wall of chamber 13,

V the said sleeves being provided with annular bars 36, upon which bars are secured convey- 1 by means of a screw conveyer 11, the shaft c linder 1 and supported therein by the IIO io by any suitable outlet.

ing-Scrapers 37. Some of these scrapers act upon the material which is centrifugally de-l posited on the inner side of the wall of cylinder 15 and others act upon said material depositod on the inner peripheries of the frustoconical partitions therein.

In the cylinder-head 2 is an opening -39 for the escape of liquid into the annular xed chamber 40, from which said liquid escapes Passing through the' Walls of both cylinders 1 and 15 and entering the separating-chambers B C D are open tubes 41. There may also be an o ening 42 in the cylinder-head 2 near tov tile center thereof. A

On the hub -of the driving-pulley 8 is a lsprocket-wheel 42, which by means `of the belt 43 transmits motion to a sprocket-wheel 44 on the end of shaftv 45, which extends 2o through the bed 7 of the machine and carries at its farther extremity a sprocket-wheel 46, .which by chain belt 47 rotates sprocketwheel 12.

lWhen the driving-pulley 8 is rotated, the

2 5 cylinder 1 is caused to turn on its trunnions,

thus carrying the gear in planet movement around the iixed.pinion'24. Gear 25, and hence pinion 26 onthe same'shaft, is thus rotated, and yfrom pinion 26 motion is `com- 3o municated to shaft 28 to cause the Scrapers to be carried around the inner surfaces of the cylinder 15 and conical partitions at a rate of speed different from that of the rotation of cylinder 1'; The feed-conveyer 11 is 3 5 set in rotation by the sprocket-chain 47.

The operation of the machine isas follows: The combined solid and liquid materials to be separated are introduced into the hopper 9 from the pipe 48, and thence by means of the 4o screw conveyer 11 are carried into the chamber 13,/Whence by the pipe 14 they are delivered into thefirst separating-chamber -"i in cylinder 1'5. By reason of the eccentricity of cylinder 15 to `the axis of rotation of cylinder 1 the liquid is projected by the centrifugal force of rotation to that part of the inner surface of cylinder 15 which is farthest distant from said axis of rotation, as indicated at F, Fie. 3. The radial depth of liquid here 5o accumu ating cannot exceed the distance of the outlet 39 from -lthe cylinder-wall, and hence-said liquid flows from said outlet to the chamber 40 land thence to any convenient receptacle. The solid material is carried out -5 5 of the liquid and around the inner cylindrical periphery of chamber A b the Scrapers 37, which also conve it over the inner surface of partition 32 to t e central outlet, whence it asses to the second separating-chamber'B.

ere the centrifugal force again throws whatever liquid may still remain combined Withthe solid to the most eccentric'portion of said chamber, whence it drains through the smallopening 49 to the surrounding annular cham- `65 ber 50 and escapes at any suitable outlet.

partitions successively and around At e -oon- Samos The opening 49 may be so small as not to permit any considerable escape of solids, and yetA passes by the'escape-duct 19 to the deliveryl chamber 24.

Inasmuch as the eccentricity of the-cylinder 15 results in the liquid being accumulated on one side of the inner surface thereof, it is obvious that the solids, which will be carried around the remainder of the'cylinder periphery, willpass over a substantially ldry surface, and thus be rapidly dried by vexposure to the atmosphere. Thel reater part of the combined liquid is removed inthe first separating-chamber A, and the quantityxin chambers B C D will be successively less and very small in amount, so that while separation goes on in the successive chambers. -the drying operation progressively prede-minates. The outer cylinder 1, with the supportingblocks 16 and ring 17, operates to balance the eccentric cylinder 15. Any number of frusto-conical partitions' may be employed, depending on the number of separatingchambers A B C, &c., desired. The short tubes 41 serve to lead atmospheric air into 4cylinder 15 to cool the interior when hot materials are being treated.

I claim- 1. In a machine for separating solids and liquids, a rotary vessel, and a second vessel eccentrically disposed therein; the-said inner vessel having a plurality of chambers Awherein solids are centrifugallydprojeeted to the inner surface thereof, an alternating with said chambers, a plurality of devices for con-v veyin said solids centripetally.

`2. a machine fori separating solids 'and liquids, arotary cylindrical vessel, a cylindrical vessel eccentrically disposed therein and, in said inner vessel, a plurality of frustoconical partitions and means 'for conveyin the material to be separated throu h sail cave peripheral surfaces thereof.

I 3. A rotary vessel, a cylindrical vesselfor IOO separating1 solids and liquids eccentricallrly' disposed t erein, the said inner vessel having two communicating chambers, means forcentrifugallyjseparating -out liquid in the-*first chamber, means for conveying the Aresichia'l solid and liquid. materials, in a centripetahdirectlon to said second chamber, means'for centrifu ally tocause a second separation to projecting vsaid residual materials outward remove quidin said .second chamber and ago rneans for conveving the second residue centrlpetally to 'an escape-opening 1n said inner vessel.

4. A rotary vessel, a cylindrical vessel eccentrically disposed therein, the said inner vessel having a series of rusto-conical separating-chambers with their inclined walls parallel and communicating at their smaller ends, each of said chambers having a liquidoutlet, means for feeding combinedesolid and liquid material into the large end oi the first chamber, means for conveying centrifugallydeposited material through said chambers successively and niean's for centrifugally discharging Solidsfrorn the last chamber.

5. ln a separator for solids and liquids, a horizontal rotary cylinder, a second cylinder ecccntrically 'fixed therein, and having a liquid-escape opening in one head, a seriesof frusto-conical annular partitions in said inner cylinder, an axial shaft also in said inner cylinder, conveying-Scrapers carried by said shaft and constructed to carry the material around the inner periphery of said inner cyl- ,inder and partitions and to deliver the saine through the clearance-space between said partitions and shaft, means for Yfeeding conibined materials into the chamber between said cylinder-head and the first partition of the seriesand an outlet-duct for solids at the opposite end of said inner cylinder.

In testimony whereof' l have signed nay nameto this specification in the presence of two subscribing witnesses.

- JOHN J. BERRXGAN. Witnesses:

WM. H. SIEGMAN. .PARK BENJAMrN- Jr.

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