US1279057A - Centrifugal separator. - Google Patents

Description

D. B. WESTON.

CENTRIFUGAL SEPARATOR.

APPLICATION FILED NOV. 15. 1913.

Patented Sept. 17,1918.

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- DAVID B. WESTON, OF SHARON, MASSACHUSETTS.

CENTRIFUGAL SEPARATOR.

To all whom it ma concern:

Be it known that I, DA ID B. WESTON citizen of the United States, and resident of Sharon, county of Norfolk, State of Massachusetts, have invented certain new and useful Improvements in Centrifugal Separators, of which the following'is a specification.

This invention relates to centrifugal machines intended for use in clarifying liquids by separating the solid content therefrom by centrifugal action. The-invention is particularly applicable for use in clarifying cane I juice in place of the filter presses commonly used to extract the dirt or sediment from the cane juice, thus avoidmg the slow process of filtration and the frequent clogging-up.

of the filter bags or screens.

The invention comprises generall speaking, a centrifugal receptacle proyi ed with openings inits bottom for the discharge of the solid matter extracted and having an annular-t'op covering the peripheral portion of the rece tacle over the inside edge of which the clarified liquid escapes, combined with means for introducing the liquid to be treated into the peripheral bottom portion of the receptacle,and a bafiie plate in the upper portion of the receptacle extended inwardly beceptacle, so that it may be removed from operative position in order to give the at yond the inside edge of the top, so as to prevent the direct flow of the sediment-containing liquid ,to the outlet before the sediment has been separated therefrom.

Another feature of the invention consists in means for detachably securing the deflector ring in the bottom portion of the retendant free access when discharging the solid content through the openings in the bottom' of the receptacle. Another feature of the present invention consists in the arrangement of the inlet pipe to deliver the liquid to be treated through the bottom of the receptatcle into the interior.

These and other features of the invention will be fully described in this specification and will be defined in the claims forming part thereof.

' Specification of Letters Patent.

In the drawings I have illustrated some the construction for detachably holding the deflector in place; q

Fig. 3 illustrates a modified construction for holding the deflector rin in place;

Fig. 1 is a side elevation o Patented Sept. 17, 1918. Application filed November 15, 1918. Serial No. 801,155.

the same; and- Figs. 5 and 6 illustrate still another form of'means for detachably fastening the deflector or spreader member in position.

In the drawings, I have illustrated the invention applied to a centrifugal machine comprising a cylindrlcal receptacle a suspended from an overhead support by a yratory rotary shaft a( to whoselower on .is

secured a radial armed spider a carrying the bottom or floor a of the receptacle a.

A The bottom of the receptacle is downwardly'inclined toward the center of the machine and is continued some distance beyond the periphery of'the spider, as shown at a, so as to leave space above its lower edge for an inlet or'supplypipe 5 through which the liquid to be treatedis conducted to the interior of the rotating receptacle. The outlet or nozzle of the pipe 6 is, of course, di-

rected outwardly, and the centrifugal force,-

due to the rotation ofthe receptacle, causes liquid to flow up between the arms of the spider and beneath the deflector ring a to the peripheral wall of the receptacle.

- The peripheral portion of the receptacle is overed at the top by an annular top or cover a which acts as a dam or barrier to hold back thesolid matter extrected as it walls-up against the peripheral wall of the receptacle, while allowing the clarified liquid to escape over its inner edge after the wall ofliquid is built into a suflicient thick ness to flow around this inside edge. A flanged hood or ring a located a slight distance above and inside of the inner edge of the top a serves to deflect the clarified liquid outwardly into the surrounding curb.

The receptacle is provided with a series ward the periphery of of vertical radially ,rranged wings or diaphragms d projected inwardly from the peripheral wall, preferably extending from top to bottom of the receptacle.

As the most efiicient work is secured by conducting the liquid introduced directly tothe receptacle, I provide a deflector ring a, which is detachably held 'in place in the lower art of the receptacle.

According to the form shown in Fig. 2, this ring 0 is made in sections, one to each compartment included between ad acent win of the machine. Each wlng is provided at its inside edge, near the bottom, with a pair of supporting plates 0 on opposite sides of the wing, and as in this form it is intended to remove each section by drawing them toward the center of the basket, the plates are formed with wedge-shaped ra sed ledges c forming diagonal shoulders against which the correspondingly oblique end portions of the ring sections may abut, to, prevent their being thrown outwardl from position by centrifugal force when t e machine is rotating. The. plates are also provided with undercut lugs or hooks which overhang the outer cornersof the ring sections to prevent the outer edge from lifting. The

inner edges of the plates are :detachably locked in place by means of the swinging latches or dogs 0 which are slotted to fit edge thereof raising the latch or dog '0, then over the respective wings by which they are pivotally sup orted. 0 remove a sectlon the operator as merely to grasp the inner drawing the section inwardly toward the center of the machine; After the deflector has thus been removed, he has free'a'ccess to the compartment for the pn scooping out, through the bottom, t e solid sectional rin 0 may be replaced and the ma:

chine starte for anotherrun. r 1

In Figs. 3 and 4, I'have' shown a 8.1.1.-..- what difl'erent construction for fastening. thering sections in lace. In this case there are upper angle p ates arranged some distance above the supporting plates 0' and between said upper plates '0" and the ring section 0, I insert a wedge plate or'ke a which serves to hold the adjacent ends 0 .the

ring sections firmly seated in position. As shown in Fig. 3, these plates are slotted midwa of their sides, so as to pass beyond the inside ed e of the supporting wing.

A slig tly modified form of wedge is shown in Figs. 5 and 6. In that case thesection rings 0 instead ofhaving their rear corners -cut away to permit removal inwardly, are cut away slightly in front of the inside edge of the wing, as shown at c, to

.in the top ose of 1 atj-I claim is: matter walled-up on the inside of the pe- I -f i 1. In *a' centrifugal ripheral wall. After such discharge-the;

permit the removal of thedeflector section outwardly. 'In this case each deflector section is supported on underlying angle plates 0 and are wedged in place by means of a slotted key 0 passed between the top of the adjacent sections and the superimposed angle plates 0.

The underlying angle plates 0 have turned-up lugs 0 at their outer ends to hold the sections against outward movement when the machine is running, but in removing the sections the outer edges may be lifted up over these edges when the key is withdrawn.

It will, therefore, be seen that provision may be made for removing the deflector ring over toward the center or the outside of the machine, when it is desired to get them out of the way for the purpose of discharging the solid matter.

The action of the'machine is as shown. The-raw liquid being introduced through pipe 6, is deflected along the bottom of the receptacle 'to the outside wall against which 1t walls-up under centrifugal action. In this 'When there has been sufiicient accumulation of liquid toreach the line of the outlet of. the receptacle, the light or clarified liquid escapes over the top into the curb leaving the solid residium walled-up inside the receptacle. The baflie plate 6 acts to prevent any direct flow of the newly introduced unclarified liquid to the outlet orifice, since all" escaping liquid must pass around the outside edge. of this baflle plate 6 before escaping through the top of the rece tacle." Y

v --separator, the combination-of a'rotary receptacle provided with Y annular top and bottom "members covering "theperipheral zone of the receptacle, an annular 'plate arranged at a distance from the peripheral wall and adjacentto the bottom, a liquid feed pipe arranged to project through the bottom to deliver liquid into the space between the said annular plate and the bottom when the receptacle is rotated, and means for detachably holding said plate in its operative osition and allowing it to be raised to faci itate the discharge of the solid separated matter through the bottom opening, substantially as described.

. 2. In a' centrifugal receptacle the combination with the internal radial wings, supporting plates secured thereto, an-annular sectional deflector resting upon said supportmg plates adjacent to the bottom, and retaining devices for detachably locking said annular plates in position so as to permit amps? their removal to facilitate the discharge of solid matter through the bottom of the receptacle, substantially as described.

In a centrifugal receptacle the combination of the internal radial wings, support ing plates secured thereto, a sectional deflector resting upon said supporting plates, and pivotal latches adapted to engage and removably hold said deflector sections against the supporting plates, substantially 10 as described.

In Witness whereof I have subscribed the above specification.

DAVID B. WESTON.

In the presence of GEORGE A. ROCKWELL, GEO. N. GODDARD.

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