US1327944A - Abthub stockdale cosleb - Google Patents

Description

A. S. CO'SLER. SYSTEM FOR SEPARATJNG FLUID SUBSTANCES. APPLICATION FILED OCT. 5,. l9l8.

1,327,944. I i V Patented Jan. 13, 1920.

ARTHUR STOCKDALE COSLER, OF NEW YORK, N. Y.

' SYSTEM FOR S'EPARATING FLUID SUBSTANCES.

. Specification of Letters Patent.

Patented Jan. 13, 1920.

Application filed October 5, 1918. Serial No. 257,023;

To all whom it may concern:

Be it known that I, ARTHUR STOOKDALE COSLER, a citizen of the United States of America, and resident of 617 Fifth Avenue Building, in the city of New York, in the State of New York, in the United States of America, have invented certain new and useful Improvements in Systems for Separating Fluid Substances, of which the-following is the specification.

The invention relates to improvements in means for separating substances of difierent specific gravity while in their liquid state as described in the present invention and illustrated in the accompanying drawings that form part of the same.

The invention consists essentially of the novel means employed, whereby the substance in suspension in the heavier liquid is allowed torise through thin layers of liquid and drawnoff from its highest elevation and thus removed from the main body by means of overflows maintained at suitabledifien ent levels.

The objects of the invention are to relieve acids and other substances utilized in industrial pursuits from hydrocarbon oils, oleoresinous particles and volatile substances, to

accomplish this puropse economically during the process of manufacturing or reclaiming the acid liquors, to increase the efliciency in operation of the sulfite acid liquors in the'pulp industry and generally to provide a well developed system of'separating substances of lighter wei ht from those of heavier weight holding said lighter ones in suspension.

In the drawings, Figure 1 is a vertical sectional View of the separating chamber of the shelves effecting the separation. I i i Fig. 2 is a vertical sectional view showing a cross sectional View of the shelves effecting the separation and elevation and the discharge receptacle.

Fig. 3 is a diagrammatic view showing the application of the invention inthe production of sulfite acid liquor.

Fig. 4 is a plan View of the separating chamber, discharge receptacle and piping.

Like numerals of reference indicate corresponding parts in each figure.

'In describing this invention, its applicationto'the productionof acid liquors for use in the sulfite pulp industrywill be particularly pointed out in order to more clearly lead to a correct understanding of its parts and operation, though many other applicatlons of the s stem can readily be made without materially modifying the salient features herein set forth.

- The system in the first place may be said to be dependent upon a chamber, receptacle,

tank, vat or other inclosure here shown as a wooden tank 1 intermediately arranged between the acid reclaiming tank 2 and acid storage tank 3 and communicating through the discharge receptacle or selector 4 with the reservoir 5, the latter containing the lighter substance separated, herein designated by the chemical name of its principle constituent part cymene being what is familiarly but impro erly known as the turpentine of the sul te acid liquor.

The separation of this substance is desirable because it has an intrinsic'value in arts and industries and also because the better 'the separation of this substance from the acid liquor, the better the latter is for its uses in chemical action on pitch-containing wood from which pulp is produced.

the other sides of the said tankbeing denoted by the inlet pipe 9 on the one hand and the outlet pipe 10 on the other hand.

The inlet pipe 9 leads from the acid reclaiming tank2 to and through the bottom of the tank 1, said pipe 9 extending upwardly through gorresponding holes in the shelves 6 and just below each shelf having the discharge openings 11 and preferably closed at its upper extremity above the shelves 6 by the cap 12, though it maybe passed through the top of the tank to provide for clearing out.

This pipe 9 intersects the shelves 6 midway of the upward incline of said shelves at one side of the tank 1 and the infiowing acid liquor occupies space between the shelves'and the substance or substances of. lighter specific gravity rise to the under surface of a shelf and flow under each shelf toward the upper-edges of said shelves, where the comparatively long and wide openings zl8zpermit said lighter substances to join the naturally fall toward'the lower sides of said shelves to the arc-shaped openings 14: made at the lower extremities of the said shelves.

The pipe 9 is near to the wall of the tank, but not against said wall, as the discharge openings 11 face the tank wall and not the center of the tank.

The outlet pipe is closed at its lower end by the block 16 and at'its upper end extends through the side wall-of the tank 1, as shown or it may be passed through either end of the tank, for providing for clearing out scale, and enters the discharge receptacle or selector-4;.

The pipe 10 is formed with the inlet openings 17 in vertical alinement and facing the wall of the tank "1, cachopening 17 being. flush with'the upper surface of a shelf 6, therefore the acid liquor crossing over from the pipe 9 finds egress through the openings 17 from whichit'flowsinto the discharge receptacle &.

Meanwhile, the lighter substance, which is a liquid in a finely divided state, having crept along the various st-agesto its vertical passage rises and forms a solid layer at the top and is drawn 01f into the discharge receptacles by means of the overflow pipe 18. The man hole 19 is shown through the top of the tank and the drain 20 through the bottom to remove the solids or residue dropping froni the shelves through the lower openings in the shelves.

The discharge receptacle 4 iS'PZIltltlOIlBd .to form the inlet compartment 21 into which the pipe 10 empties, said compartment having at one side the overflow wall: 22, and over which the acid flows into the outlet compartment 23. The pipe l8 leads to and empties into the compartment 24; of the receptacle 4, said compartment 2 1 having at one side the overflow wall 25 and over which the lighter substance flows into the outlet chamber and on into the reservoir, the acid liquor from the outlet compartment 23 flowing into the acid liquor storage tank.

Briefly theoperation of the system is as follows :'-v

The acid liquor from the acid reclaiming tank flows through the pipe 9 and up said pipe in the separating tankfor chamber and at each outlet opening under a shelf discharges between the under surface of the upper shelf and the tOpSHlfEtCBQOf the next shelf below.

Theresult of this is a distribution of the lighter and heavier elements making up the acid liquor as received 111 the tank 1;, the

lighter floating up to the upper openings throughithe shelves and the'acid liquor relieved "of the lighter substance spreading over "and entering the inlet openings to the pipe 10 and as this pipe leads to the comings. 1

out in a layer above the acid liquor. A column of lighter substance will always be taller than acolumn of the heavier liquid from which it is separated exerting the same pressure at plane of division, because 01": the difference in the specific gravity of the two liquids. For instance if you take a layer of cymene st feet deep, said layer at the point of division will exert the same pressure as a column of acid liquor forty or forty-one inches deep,

This difference in levels permits the removal of the acid liquor continuously over the wall 22 and the cymene over the wall 25, which must be considerably higher than the wall 22, in order to account for the difi'erence in height of the columns of cymene and acid liquor oi equal hydrostatic pressures and provide for the fluctuation in total depths of liquor in the tank caused by various rates of flow through same.

, Various changes may be made in the construction of the several parts to the system, without departing from the spirit of the invention, so long 'asthey are withinthe scope of- ,the claims following.

.What I claim is r 1. In a system for separating fluid substances, inclined shelves suitably inclosed and supported and adapted to spread the fluid and cause, the elevation of the lighter element at-the upper ends of the inclinations, a tubular inlet member having discharge openings between said shelves respectively and a tubular outlet member having ing in vertical. alinemenhimd means for feeding the'fiuid between the several shelves and means between the :shelves'for discharging the heavier elements, coincidently with the flow of'the-li-ghter elementsto said open- 3. In a system. for separating fluid substances, a tank having a plu'ralityof inclined shelves, each shelf occupying the complete cross'area of the tank andhaving iatthe upperend a comparatively wide opening and :at the "lower end a residue openingan inl sed teed passage extending upwardly through the shelves'j and having discharge openings at ea helf, an inclosedfldischarge assage extending upwardly through the shelves and Zhavinginlet'epenmgs at each shelfaiida discharge passage for the lighter elements.

5. In a system for separating fluid substances, a tank having a plurality of incline parallel shelves, each occupying the cross area of the interior and having an opening at the upper end for the lighter substance and a slot at the lower end for the residue, an inlet pipe passing through the bottom and upwardly through said shelves, said pipe havlng openings below each shelf, discharge pipe diametrically opposite to said inlet pipe and having inlet openings flush with the upper surfaces of said shelves, said discharge openings in the inlet pipe and inlet openings in the discharge pipe facing the wall of the tank at a point adjacent thereto, and a discharge pipe for the lighter elements.

6. In a system for separating fluid substances, a production tan a separating tank connected with said production tank havin shelves for the spreading of the fluid substance, a discharge receptacle in proximity with the upper end of said separating tank and partitioned into inlet and outlet chambers for the heavier elements and inlet and outlet chambers for the lighter elements, a pipe connecting the discharge of said separating tank with said discharge receptacle for the passage of the heavier elements, a pipe connecting the separating tank and dis charge receptacle for the passage of the lighter elements, a storage tank and a reservoir for the lighter elements.

7. In a system of the class described, a main tank, a storage tank, an intermediate tank having distributing means therewithin adapted to create an upward flow of the lighter elements, a pipe from the main tank forming with a plpe vertically arranged within the intermediate tank and the con nections therebetween a siphon for the transfer of liquid from one tank to the other, a discharge receptacle in proximity with the upper end of said separating tank and having inlet and outlet chambers partitioned by walls adapted to allow an overflow, an outlet pipe from said intermediate tank to said discharge receptacle, an inlet pipe to said discharge receptacle for the flow of the lighter elements from said intermediate tank, a pipe from said discharge receptacle to said storage tank, a reservoir, and a pipe connecting said discharge receptacle with said reservoir for the passage of the lighter elements.

Signed at the city of New York, this 24th day of July, 1918.

ARTHUR STOGKDALE COSLER.

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