US1311828A - Tbeating and sep abating system - Google Patents

Description

w. R. MACKLIND.

TREATING AND SE PARATING SYSTEM.

APPLICATION FILED JAN. 23. I917.

Patented July 29, 1919.

3 SHEETS-SHEET I.

W/LL/AM 2 MACIfL/ND,

W. R. MACKLIND.

TREATING AND SEPARATI-NG SYSTEM.

APPLICATION FILED JAN.23. I917. .31 1,828-

.R. MACKLIND.

TREATING AND SEPARATING SYSTEM.

' APPLICATION FILED !AN.23. 1917.

Patented July 29, 1919.

3 SHEETS-SHEET 3.

M ILLIAM 2. MAGhL/ND WILLIAM R. MACKLIND, OF CHICAGO, ILLINOIS.

TREATING AND SEPARATING SYSTEM.

Specification of Letters Patent.

Patented July 29, 1919.

Applicaton filed January 23, 1917. Serial No. 143,992.

that class or type in which a continuous treatment and separation or reclamation of the particular material desired is efi'ected through the medium or agency of a liquid vehicle, the latter being passed through the improved treating apparatus and being adapted to act as a suspending and absor ing medium aswell as to be subjected to chemical treatment while in transit, the liquid vehicle being resubjected for additional saturation and precipitation as many times as there are units in the improved system or treating apparatus.

The improved apparatus and method are particularly designed and adapted for use in treating and separating solids in a finely divided state adapted to be carried in suspension in the liquid vehicle and while the latter is in transit being subjected to chemical treatment thereby in'suring uniformity of treatment and a complete absorption and tinalseparation of the particular element or elements to be reclaimed. By reason of the function or capacity of such liquid vehicle to suspend or carry the,particular material being treated and separated, such liquid vehicle is hereinafter referred to in the specification and claims as a material carrying liquid vehicle and as contradistinguished from the material to be treated and separated in such material carrying liquid vehicle.

The particular system is particularly adapted for treating and separating material in the treating or material carrying liquid vehicle in a continuous manner without loss of either, the particular element or elements separated or reclaimed and the material carrying liquid vehicle being continuously delivered as desired and the material carrying liquid vehicle being adapted to be resubjected and handled as many times as there are units in the improved system or apparatus thereby insuring the material carrying liquid or treating vehicle being fully saturated with the element or elements being removed or reclaimed.

Furthermore. the improved apparatus and method of treatment provide for continuous precipitation whereby the material carrying liquid or 'arrying vehicle may be passed through the various units of the system for subsequent treatment precipitation and separation, the precipitated or separated material being constantly removed and the material carrying or liquid vehicle being either sent to Waste or to tankage for other treatments.

The improved system or method is particularly well adapted for the treatment of dye solutions for making colors stick or set on inert bases, such for example as barytes and various inert earths in the art of dyeing, wherein the chemical action is carried on while the liquid inerts in suspension are subjected to a chemical reaction and are being passed through the apparatus. the liquid going to waste or storage at the end or terminal portion of the system and the dry inerts being reclaimed.

The improved apparatus and method of treatment are particularly adapted for treating or washing lithopone (a. paint pigment) in the removal of impurities therefrom, and as contradistinguished from the present or decantation system now commonly employed in which the decantations run from ten (10) t0 seventeen (17) in number, my system enables the same to be treated continuously and more consistently and liniformly with less loss and resulting in a more satisfactory product.

\Vit-h the above mentioned and other ends in View, the invention consists in the novel method or process together with the improved apparatus for carrying the same into effect, such apparatus consisting in the novel construction, arrangement, and combination of parts hereinafter described, illustrated in some of its embodiments in the accompanying drawings, and particw larly pointed out in the appended claims.

Referring to the drawings. form-ing a part of this specification, Figure 1, is a side elevation of an apparatus embodying a plurality or series of treating tanks and pipe and pump mechanism for carrying out the improved method.

Fig. 2, a horizontal cross sectional view taken on line 22 of Fig. 1.

Fig. 3, a top plan view of the same.

Fig. 4, a central vertical sectional view of one of the treating tanks taken on llne 44 of Fig. 1.

Fig. 5, a similar view of the upper portion of a treating tank showing a modified form of weir tube mounting and overflow.

Fig. 6, a similar view of a further modified form of same.

Fig. 7, a diagrammatic view, or side elevation of another form or embodiment of treating apparatus in which the treating tanks are arranged in stepped relation and the discharge pipes from the cone bottoms of the treating tanks are connected and operated by suitable injector mechanism.

Fig. 8, a similar view of a further modified form.

Fig. 9, a similar view of-a further form.

Fig. 10, a similar view of a still further form or modification.

Similar numerals of reference designate like parts throughout all the figures of the drawings.

As a means of carrying out the improved' method, of treating and separating the improved apparatus preferably comprises a series or plurality of cone-bottom treating tanks or units together with means for simultaneously and successively introducing and withdrawing the material carrying liquid vehicle into and out of the top and bottom portions of the treating tanks or units, respectively, and, if desired, providlng means for introducmg chemical treating fluids or liquids into the material carrying liquid vehicle while in transit. As a means of performing the functions above referred to the treating tanks or units are provided with suitable conduits or fluid carrying pipes communicating with the upper and lower portions of the tanks or units, the fluid in the conduit pipes being passed therethrough and through the treating tanks or units through the medium of suitable power devices such, for example, as suction pumps, suction nozzles, or the ,llke. The treating tanks or units 1, may be arranged in series as suggested in the drawings, and if desired, may be arranged in stepped relation to each other as suggested in Fig. 7, of the drawings.

The tanks or units 1, may be supported on suitable supporting columns 2, and the conebottoms 1, thereof may be supported on similar supporting columns 2*, as shown in mixing and distributing baliies or distributers 4, said bafiies 4, communicating with a suitableliquid receiving hopper 4, at the top.

\Vhen the treating tanks or units 1, are arranged in a common horizontal plane the mixing tubs or receptacles 3, may be supported on longitudinally extending beams or supports 5, connected by -cross members 5*,

(see Figs. 3,'and 4,) and, if desired, a platform 5", may extend along one side as shown.

The top portion of each tank or unit 1, is provided with a centrally located liquid directing or weir tube 6, the latter forming conjoint-1y with the upper portion of the tank 1, an annular space 6, into which the liquid distributing pipes 3, from the mixing tubs or mixing receptacles discharge so that the liquid passing into such annular space will be drawn downwardly by a current underneath the lower edges of the tubes 6, and upwardly therein to the over-flow pipes hereinafter described. The directing tubes 6, may be sup-ported upon the longitudinal beams or supports 5,, as shown in Figs. 3, and 4, of the drawings, or if desired, may be supported by means of, the overflow pipes 7, as illustrated in Figs. 5, and 6, of the drawings, and in which latter instance the over-flow pipes 7 communicate with over-flow receptacles or boxes 7 the latter being centrally located within the directing tubes 6.

As a means of simultaneously continuously and consecutively introducing and withdrawing the material carrying liquid vehicle into and out of the top and bottom portions of the treating tanks or units 1, there are provided a plurality of centrifugal pumps 8, communicating with the conebottoms 1, of the tanks 1, through the medium of suction pipes 9, and suction or injector nozzles 9, the latter communicating with the vertex of the cone 1, through the medium of a suction or discharge pipe 9*.

The injector nozzles 9, communicate with suitable liquid or fresh water conduit pipes 10, communicating with the main conduit pipe 10, leading to a suitable source of supply.

As a means of driving or carrying the ma-' shown).

The particular element or elements being -separated or reclaimed are adapted topass out of the cone-bottoms 1, into the suction or discharge pipes 9 communicating with the suction pumps, and as a means of retreating and reutilizing the over-flow passing out of the over-flow pipe 7, and passing the same through successive tanks or units, each suction pipe 9, is intersected by means of a vertically extending over-flow suction pipe 13, and the overlow liquid passing through such suction pipes is thus again directed by the pumps 8, through the liquid conduit pipes 11, leading to the successive mixing tubs or receptacles 3, of the treating tanks or units 1. The overflow pipes 7, also communicate with main over-flow pipes 14, leading directly to the waste pipe or sewer 15.

As a means of separately introducing suitable chemical treating fluids into the material carrying vehicle while in transit a Suitable tank or container 16. may be provided, said tank or container communicating with a conduit pipe 16*, provided, in the present instance, with branch or feed pipes 16", intersecting the suction pipes 9, leading' from the cone-bottoms 1, of the treating tanks and to the centrifugal pumps 8, so that the material carrying liquid vehicle will thus become thoroughly impregnated with the chemical treating fluid or liquid such as a gas, acid in a liquid form, or the like. The liquids passing through the suction pipes 9, may be controlled by means of valves 9, and so likewise as to the conduit pipes 10, which are provided with valves 10. It will also be observed that the main water supply pipe 12, is provided with a valve 12", and that the discharge pipes 12, are provided with valves 12. The over-flow suction pipe 13, may also be regulated by means of valves 13, and so likewise as to the liquid conduit pipes 11, which are provided at their top with valves 11?, and the chemical feed pipes 16*, which are provided with the valves 16.

It will be seen that the foregoing construction provides separate or additional means for introducing'a separate or additional chemical treating fluid into the material carrying liquid vehicle while the latter is in transit in the suction-pipes 9, leading from the cone-bottoms 1, of the treatin tanks and controlled by the centrifuga pumps 8, so that the material carrying liquid vehicle becomes thoroughly impregna-t-ed with such chemical treating fluid at separate and distinct points while in transit, such construction being of particular advantage in the treatment and separation of various solutions or in the treatment or separation of soluble elements in and from liquids, as it enables any desired chemical treating fluid to be continuously and successively introduced in accordance with the particular demands and substantially in accordance with the method and construction hereinbefore described.

The finally reclaimed or separated element or elements are adapted to pass out of the main discharge conduit 17, (see Figs. 1, and 2, of the drawings) to a suitable storage tank or receptacle therefor, or to waste or sewage as occasion may demand.

From the foregoing it should be understood that my improved system or method of treatment is not in any Way to be restricted to the treatment" and separation of solid materials in and from liquids and that it not only includes the treatment and separation otsolutions, but is applicable to a wide range of'use in the manufacturing and chemical arts. Therefore, for the purpose of .mere illustration and example the specific use or application of my invention in its treatment of a paint pigment known as lithopone will now be described:

The lithopone before being treated by'my improved method or process, and after being previously reduced in a wet finely divided condition of about QOO-mesh, is in the form of a sludge containing about 2% of zinc sulfate and a considerable quantity of light flnfi'y carbon or mineral matter of a less specific gravity than the lithopone. In order to produce a commercially satisfactory litho pone it is essential that such zinc sulfate and carbon or mineral matter be entirely removed.

.In treating the sludge material above described it is first pumpecbfrom the sludge tanks through the medium of the first pump 8, to thehopper 4 of the liquid receiving and mixing tub 3, of the first treating unit or tank 1 (the first to the left in Fig. 1, of the drawings) where it is thoroughly mixed and commingled with a supply of water issuing from the discharge pipe 12, and is thoroughly mixed therein through the liquid mixing and distributing bafiies or distributers 4, and then passes out through the radially extending liquid distributing and discharging pipe conduits 3, and thus passes.

- into the annular space 6, about the weir tube 6. As the liquid passes into such annular space it is drawn downwardly by a current passing underneath the lower edge of the tube 6, andthence upwardly therein to the overflow receptacle and from the latter passes out through the overflow pipe 7, such liquid carrying with it the soluble zinc sulfate and foreign substances of lighter specific gravity, the lithopone constantly set tling down into the cone bottom 1, of the tank or treating unit where it is drawn out through the medium of the suction or discharge. pipe 9", communicating with the suction pipe 9, and the suction or injector nozzle 9, and from thence is again conveyed into the hopper of the next treating unit or tank through the second liquid conduit pipe 11, and the treatment hereinbefore described repeated.

In addition to the treatment and retreat-- ment of the material above described and resulting from the construction of the improved apparatus, a chemical treating fluid is introduced into the material carrying liquid vehicle while in transit. such chemical treating fluid consisting, in the present instance, of a solution of sodium phosphate, the introduction of this treating fluid preferably taking place in one of the intermediate treating tanks or units through the medium of one of the feed pipes 16", communicating with the main conduit pipe 16, I

leading from the container or tank 16, the purpose or function. of the solution of sodium phosphate being to take up and carry ofi any excess barium with the waste or overflow liquid in the same mann'eras the other elements above referred to. If desired bluing may also be introduced into the material carrying liquid vehicle while in transit between the tanks or treating units to add a bluish tint to the product,-'-neutralizing a slight tendency in the product to assume a slight pink color.

'hen the lithopone leaves the last tank or treating unit it is completely treated and settles in the cone shaped bottom thereof in the form of a heavy sludge and from which it is removed by pump to the filter presses for final reclamation.

By reason of the method of treatment and apparatus for carrying the same into effect as above described, it will be obvious that a wide latitude is allowed and great discretion is permitted in the taking of the overflow material carrying liquid vehicle and treating fluids from one or more treating units and injecting a certain portion thereof into the discharge portion of the preceding treating unit to act as a further cleanser or retreating agent of the lithopone, this being particularly desirable by reason of the fact that the liquid vehicle and treating fluids may not be up to full saturation and power in so far as absorbing or taking up the zinc sulfate and other soluble elements to be removed are concerned. 7

My improved method or system of continuously treating and separating is of course applicable to the treatment and separation or reclamation of a wide range of material or chemical elements as provision is obviously made not only for continuous and uniform treatment but for complete impregnation saturation or precipitation as the particular occasion or demand may require.

From the foregoing description, taken in connection with the accompanying drawings the operation and advantages of my invention will be readily understood.

Having thus described my improved method or treating and separating system, together with one of the forms or embodiments of a suitable apparatus for carrying the same into effect, what I claim and desire to secure by Letters Patent. is.

1. A liquid treating and separating process, consisting in (1) simultanemisly passing and repassing the material carrying liquid vehicle andtreating liquid into and out of a plurality of treating units in sequential order, and (2) impregnating said material carrying liquid vehicle with a separate chemical treating fluid in its passage and repassage between said treating units.

A method of treating and separating soluble elements in and from liquids, consisting in passing and repassing a material carrying liquid vehicle through a plurality of treating units and constricted uninterrupted conduits between the bottom and top portions of said units, and impregnating said material carrying liquid vehicle with additional treating liquids and fluids while in transit in said conduits between said treating units.

3. A method of treating and separating solutions, consisting in (1) passing and repassing a material carrying liquid vehicle through a plurality of treating units provided with intersecting conduits extending between the bottom and top portions of the latter, and (2) introducing water and chemical treating fluids through separate conduits intersecting said first mentioned conduits and communicating with said material carrying vehicle while passing through said conduits whereby the material andmaterial carrying liquid vehicle are treated and separated in stages without loSs of either.

4. A method of treating and separating solutions, consisting in (1) passing and repassing a dissolving and absorbing'liquid vehicle through a plurality of treating units and suction devices and intercommunicating conduits connecting the lower and upper portions of said units, and (2) introducing a treating fluid into said liquid vehicle through conduits intersecting and communicating with said intercommunicating conduits and suction devices whereby said liquid vehicle is treated in stages and said liquid vehicle and treating fluid are reclaimed without appreciable loss.

5. A method of treating and separating soluble elements in and from liquids, consisting in passing and repassing a material carrying liquid vehicle through a plurality of treating units and constricted uninterrupted conduits extending between the bottom and topportions of said units, and impregnating said material carrying liquid vehicle with additional treating liquids and fluids while in transit in said conduits between said treating units and at separate points between the latter.

6. A method of treating and separating solutions, consisting in (1) passing and repassing a, material and material carrying liquid vehicle through a plurality of treating units provided with intersecting conduit-s extending between the bottom and top portions of the latter, and (2) introducing chemical treating liquids and fluids through separate conduits intersecting said conduits and communicating with said material carrying liquid vehicle while passing through said conduits between said treating units whereby the material and material carrying liquid vehicle are treated and separated in stages.

7. A method of treating and separating solutions, consisting in (1) simultaneously passing. a material and material carrying liquid vehicle into and out of the top and lower portions of a plurality of treating and separating units through the medium of suction creating devices and conduits connecting said upper and lower portions of said units, and (2) introducing chemical treating liquids and fluids into said material and material carrying liquid vehicle while in transit in said conduits through the medium of separate conduits intersecting the latter and communicating with said suction creating devices.

8. A methodof treating and separating soluble elements in and from liquids, consisting in (1) passing and repassing a dissolving and absorbing liquid vehicle through a plurality of treating units and suction devices and intercoinmunicat-ing conduits connecting the lower and upper portions of said units. and (2) introducing additional separately applied treating fluids into said liquid vehicle through separate closed conduits intersecting and communicating with said intercommunicating conduits and suc tion deviceswher-by said liquid vehicle is treated in stages and said liquid vehicle and treating fluids may be reclaimed without appreciable loss.

In testimony whereof I have aflixed my signature in the presence of two witnesses.

WILLIAM R. MACKLIND.

\Vitnesses A. D. SoimAoER, A. UEBEL.

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