US936760A - Process of concentrating liquids. - Google Patents

Description

G. fw. CHILDS. PROCESS OFONCENTEATING LIQUIDE.' t APPLIOLTION Hmm 93m30.190s.

'Patented Oct-...12,1909

- a sums-anni- 1.

. WITNESSS! Carens,

und State. of Pennsylvmxin, have linvented through :L series of UNITED ASTATES" PATENT ormone Gil-:onen WnsnEY'cHILns, or RIDGWAY, PENNSYLVANIA.

Be it knovs'rh .that I, .GEORGE `WESLEY of Ridgway-in the county ofv Elk certain nenT sind useful' Iniprovexnents'ili Brocesses -of .Concentrntin Liq'uids, where'- Ofkthefollowin a. .speci cation,- reference .bexng hard ,to t ie. ,accompanying drawings.

1.el:'1te' tov f i'oce'sses ofV Wlute progressing 1t vessels, wherein x1 pur- My niprovements veporxzmgliquid l ,tialvacu'um is rn'uintnined.

A as extracts-:of bark,

' In atpparatus of the class contemplated as hereto ore constructed, the-vessels are' permanentlyconnected w-ith euch other-,in an u 'n'- chengeabl to which tlien'enk liquid is alwnys introduced, end-'another ves.. Lis constituted the terminal o ne, in which the' liquid is alwilys evaporated to greatest specic Agru-vit. and front which the liquid concentrate-is lin Suclran arrangement niny be -sind sin'ilur vegetable matters, in s uchnn ,up umtus, the tubes in the liquld ceedin the4 first one 'inthe series become inwith' deposits from Athe liquid, as

4the

-as 'such de the osits rapidly increase during conduct o the process, the efficiency o npcparqtus as a whole is 'notonly in aterinlly re uced by the presence-A of 'such deposits, but the liquid concentrate'is deprived `of the matter deposited.

ave ascertained 'that the losses incident' tothedeposit of n portion of the matter from the solution,

obfviated shifting in rotation from one to' b v :mother ofYthe vessels in the series, the regione of introduction of the wcuk liquid und ofdischare of the concentrado; with the effect tha-t t 'e deposits nm'de from the lil-,uid

'of greater specific grnvity u rc. redissolvex by.

-j'niay .becozitinuously meintaine the 1i uid of l'ess'spectic gravity und ull of the so vid metter is dischnrged in solution in the' concentrate. Therefore; my improved' process is of three-fold advantage, Iirst, in.

rodnct-lon d; second,

that the n'axir'num volume of e sequencgso thats certnin vessel of the'serles 1s "constituted the nitnllone,

nlly' '-"l alsof-ind it convenient. to prom process of concentrnting other solutions, such u's above 'noted "muy be Pattea'oceiz, 1909. serial Nq. 157,094.

thatall of the concentrate 'ma be discharged in'liquid form and, third, that the cost of maintenance of the apparat-us is materially reduced for, be4 eliminated from the ordinary apparatus hy renewing the tubes or other parts upon which they'lodge;

novel `features herein set. forth.

My liin u'oved explained-b re erencetot e accompanying drawings w lich show a. multiple eifectconl-` prising four evaporating pans, so constructed and arranged with respect to eweak liquid inlet conduit and' u concentrated liquid, discharge. conduitv that :my-"selected ,one of' said. puns -may e constituted the initial 12in ofthe 'series inconnection with thc Wcuk-liqnid conduit, and any selected one o f said puns maybe constituted the ternnnu "the cmccntrated liquid dischar conduit.

` e said appxrntus with u. vapor-condenser 'pipcsin snchrelation thereto that the va ors muy he conducted to said condenser rom which every one of the pans is,` for the time being, the 'terminal pan. Said also comprises other coli'ven'ent nv devices, butit is to b c L mdcrstoodthnt I do not desire' prising any particular number of pans, or to the employment of the particular ndjunctive devices described; as various modifications may be made inthe apparatus without. departing from the essential features o f myprocess.

In the drawings, Figure Lis n. plan view of said appnrntus, and Fig. Il, is u side eleva` t-ion thereo evaporating pans of the series conveniently pans are connected counterpart. vapor pipes valve 1:4, controllingcommunication' from the deposits a'foresaid can only My invention 'conlpi'ellends the various pan of the series in connection with In sei'cl'iguresrl, 2, 3,- nnd'4, Aare the.

grouped around thevnpnr condenser 6. Said.:

witheach other by C?, which extend from the upper vapor chnlfrslxn 8, of one pan )recess ma. be inorefcleerly und vapor ecti'vely the pan l, to pan 2. Communication between said pa'ns and the condenser by Way of the branch 'pipes 12, is respectively con trolled by the valves 19, 20, 21,22, the valve 19, controlling communication from pan l, to the condenser.

The weak liquid which is lto be concentrated is Asupplied through the inlet 24, to

the conduit 25,'whicl1 is connected with the aus 1, to 4 inclusive, by the respective ranches 27, 28, 29, and 30, the pipe 27, connecting vwith pan 1. Similarly said pans l to 4 inclusive are respectively connected by branches 32,. 33, 34, and 35, with the colleentrated liquid discharge conduit 37, which latter is provided with the outlet 38, leading to the pump 39. The introduction of the Weak liquid from the conduit 25, to either of the pipes 27, 28, 29,.and 30, selectively, in accordance vvithwhieh pan is for the time being the initial one, is determined by the valves 41, 42, 45, and 44. Likewise the final discharge of concentrated liquid through either of the pipes 32, to 35, selectively, 1n accordance with which pan is for the 'time being the terminal one isl determined by the valves 46, 47, 48, and 49, respectively.l Moreover, the pipes 32,233,347, and 35,t.hroughwhieh the liquidfis discharged from the individual. pans, are respectively providedwith branches 51, 52,- 53, and 54, 'respectively extending to the inlet pipes.28, 29, 30,.:md 27 ,'of the individual pans, and respectively controlled by valves 56, 57, 58, and 59, to determine Whether the liquid shall be discharged to the next adjoiningpan, Aor to the concentrated liquid conduit 37. The weak liquid inlet pipes 27, 28, 29, and 30, of the respective pans 1, to 4, inclusive, are conveniently pro- .vided with regulators 61, 62, 63, and-64, re- Spectively, by which the liquid in the 'respective pans may be automatically maintamed ata predetermined level.

The heating drums 10, of the. pans 1, to 4, inclusive are respectively provided with condensation drainpipes 66, 67, 68, and 69, and, each of said condensation pipes is provided with four' pipe connections respectively marked 71, 72, 78,' and 74,' and respectively controlled by valves 8l, 82, 83, and S4. Saidpipes 66, 67, 68, and 69, are differently con- `nected, with the ipe 86, leading to the'boilers; the pipe 87, ending to the left hand end' oftheA water pump S8; the ipe 89, leadino to the right hand end of sai pump 88, an the drip ipe 90, leading to the hot Well 91, shown 1n 91g. II. It may be here noted that the different connections of the similarly arranged sets of valves 81, to 84, inclusive, which sets are respectively local to the condensation pipes 66, 67 68, and 69, are found convenient with'reference to' the lorder in which they are opened, .as hereinafter de-l and third pans of the series, are respectively utilized to heat the tubes 11, in the drums 10, of what are for the time being the second` third and fourth pans in the series, wherein they are condensed and discharged as Water throuo'h the pipes 67, 68, and 69. In order that the drum 10, of whichever pan is the initial one may be heated, each of the vapor pipes 7, is provided with a steam inlet pipe 9.3. Said ipes 93, are respectively controlled by tie valves 94, 95, 96, and 97 the valve'94, controlling the inlet of steam to the ipe17, connecting the pan 1., with the pan 2. baid pipes 93, are conveniently brought together 1n common connection with a high ressure steam inlet. 98, and loT pressure exlaust steam inlet 99, controlled by suitable valves.` The va ors from what is for the time being the ourtll pan of the series are delivered through its respective branch pipe 12, to the condenser 6, which is 'provided with a drip outlet 100, extending to the hot. well 91. Saidl 'condenser is also provided with the pipe 102, leading -to a vacuum pump, so that the vaporization of the liquid 1n the last pan of the series may be facilitated.

When the pan 1 is to be .xsed as the initial pan of the series, and ,the pan 4, as the terminal pan, the valves are set as fllowsz-The valve 41, controlling eomunuiication between the weak liquid supply conduit 25, and the inlet pi e 27, leading through the regulator 61, totiie. pan 1, is oleued; all of the other valves from Vsaid conduit 25, are closed; and, the valves 56, 57, and :'18, controlling the connections between the adjoining pans are opened; so that the liquid flows successively from the pan 1, tl11'ougl1,pans 2, and 3, to pan 4, of course, increasing in specific ra-vity in its traverse. The concentrated iquid is discharged from pan 4, through the pipe 35, and, the valve 59, being closed and the valve 49 being opened, said concentrate is delivered to the conduit 37. I

The respective steam inlet valves 94, 95, and 96, leading to the pans 2, 3, and 4, are closed and the steam '.nlet valve 97 leading to the pan 1, opened. 'The vapor valves 14, 15, 16, are opened and the vapor valve 17, shutythe valves 19, 20, 2l, are-shut and the valve 22, opened. So that the liquid in the pan 1, is vaporized by {ih e'stemn surrounding the tubes 11, couiannng it, and the vapors from pan 1, are delivered within the drum 10,'of the pan 5?., to again heet and vaporizethe liquid. The vapor from pan 2,

'is delivered to the pan 3, whereintheliquid .other in theseries, at suchJintewals as to is again vaporized Athe vapor delivered insure the'solution nd `dischnrgeof all of's to tie drum- 10, of thepan et. The 'liquid the involastile contents of the weak liquid' beinagain vaporized in' pane, the vapors inthe-concentrated 'uid product. are elivered'through the branch-pipe 12, Although I have escrxbed -a form o'f to the condenser .ywherein'they are conevnporatingan wherein theli uidtobecon clensed and iiow througlith'e Vipe 100, to' centrated is posedwithint 'es which are .7o the hot well. All of the-vagas 8l, ure surrounded 'by the heatin mcdiu.'m, tol wit, opened and the valves 82, 83, and 84, are. thevaporsfroxn theprece gpuns or Steam shut, with the eect that the condensation. from an externelsource, it 1s to be-. underl pipes 66, 67, 68, and 69of the re ective stood thetthe method or means for heating pans l, 2, 3, and 4, are' res ective .con-h the liquid is immaterial to my presentmf 7s nected with the 'bollerrth'e ot we the VBIIOIL right hand-side of the pump 58, and the left; Iclainin hund sidef saidpump. 1I The herein describedqprocesslof concen- When the pan 5l, isto be used as the'initial trailing liquid, which COIQSISS M PI'OgTeSSmg pan of the'serics a'11d.tl1ep an3,' rs the termithe liquid through afseries of v essels; causso nalpan, the 'valves areset as follows :.-The ing the liquid-to vaporize during 1ts pl: 4 f. .va1ve 44, controlling Acommuniclation-.E he, ression; utilizing the vapor of said .liquid 2o tween the weak liquid su plyconduit 25, jonrone vessel-to heat another, successively andA the inlet pipe 30, lea mg throughthe in'saidseries; s .nd shifting-:from one to anls, in rotationthregions* 85 regulator 64,' to the pan 4 -ls'o ened-a-ll otherof'said vesse of the other valves from scid condliiit'25, are of introduction of the mw-liqul closed, und the'vnlies 59, 56,' and 57, conchar e ofthe concentrate,

trolling the connections between thev adj'oin- 2. lcll'he herein described process of conceuf ing pans are opened j:so t'lizitthe'lquidflofws trating liquid, which" OODSSPSiP PIG eSSllgsuccessively --fromthe panV 4, through -.-tl 1e the liquid through a'seri'es of v i caus- 9 0' `pans l and 2, to the pali 3. The concen' ingthe liquid t o vuporize durln' its pro tmtcd. iqud-is discharged' 'from the pun' 3, son'g'utilizingthe vapor of sai liquid om through the pipe 34, and, the valve 58,. be; one vessel to hest another,' successively in ing closed and 'the .valve 48 bein'gopen 'said said series; sepsratel thewapor' concentrate is delivered to .the conduit 37.' and'c'oxioentretmA an ror'n oneto'95 -The respective steam inlets 97,` 94, and 95, another-of said .v ls, infrotation, thereleading to' the pans 1, 2, and 3, are. closed, gionsfof introduction of the ,ruw liquid and and the steam inlet-96,1eading'to-the pouf/L, ofdisclia-rge o -the concentrate.

. o'p'eried. -Thejvaporj valves.Y 17, 14 15, are 3. Theherein described process of concen- 2 opened and thc'vnpor valve 1 6, s ut; the -trating a. liquid in c series of evaporatin'g 100 valves 22,19, und20, areshuri-J end the valve pans,- through which the liquid is succes` 21, opened. -SQ tha-t' the liqld in the pun 4," sively progressed. while vaporizin'g l w 4o 1s vaporincl, bythe Statur-surrounding the consists in utiliz vt-hejvaporof said liquid tubes Il, containinvit, and, the vapors from frcnrone vesseli-glieatnnother, successively pam 4-,.are delivered within the drum l0, of in said series; and successively constituting 105 tho pnn 1, und-so ori-through the seriesg'the each an the initial pan of the' series. vapors from' t-hc Fan 3, being delivered 4'. 1e herein described process of concen- -through the -brnnc 1 pipe l2, tc' the contrating a liquid in :t series of evaporatin'g denser 6. pans, through .which .he liquid .is succesi Tn .the last named operation, with-the an 'sivel)I progressed while vaporizing; which 110 -.'f, as the initial member of the series,.n1 dofconsists in utilizin the vapor of said liquid` 'the valves 84, are opened und the vn1ves`S1,' fronronev'essel toea't another, succsively S2, and 83, shut., to effect the proper connec-v in said series; und,successive-1y constituting 'tions of the respective condensa-tion .pipe' s.6 6, each an vthe terminal pan of the series. 6T, (is, and 69. Similarly when thepen 2, 5. J.[hehe'ren described processofconcenf 11u v is the initial pan, all of the valves 82, are 4truting liquid, which consists pro es sing' opened and the valves 8l, 83, and 84, are' the liquid' through' a. series of v'esse causshut; and, when the pan 3, is 'the initil pan', ing the li uid to -vaporiie durin 'its pro es 4 all of the valves S3, are' 'opened :und 'the sion; liti zing the vapor of-sai liquid om I' valves Sl. R2, and S4 slim." l i one vessel to' heatanother, sukioessivel in- 12B-vg;

lf is to `bc.-umlclstorwl that eachof the .said .series and preventingsaid liquid om pans of the seriesis thus in rota-tion constiincrusting said vessels, by shifting from one 'tutcd the initial memher !he1eo, and the' t o another of sa-id vesse ls ,lin rotation, the

:legions of introduction of-the welll-sli id' regions ofint-rodu'ction of 'the raw'A liquid and of dsclmrgerae the concentrate Elms andof ldischarge of the concentrate. 1 25 progressively shifted from one vessel to an- 6. The herein' described process of main- Atainirig, fijee fxjom incrustation :L series of signed my name, at lzhilndelphiu, Pennsylvania, this ninth dey of December, 1903.

GEORGE lV ESLICY C l-ULDS.

` evapo'ifntiifg Aprins, contituting :L multiple LifeeIt, by constituting eaoh vessel in suoces- I sion the one from which the concer'itinte'ls 5-dishargel and the one towhich the mwi ilVitnesses:

- liquid.- is=mtroduced. l brio. l". MUARTHUR,

ARTHUR in'. Pimm.

1.1i. testimony whereof, I have hereunto .It isi-hereby ceftied that-in Letters Patent No. 936,760, granted October 12,

1.9.09, liponj the lapplication of George Wesley Childs, of Ridgway., Pennsyhania.,

4for an improvement in Processes of Concentruting Liquids, an error appears in fin; Leners, avmf No,- 936,760.9I i

the `printed speceation requiring correction` as` follows: Page 4, line 3, the word affect should. read eprect; and that the said Letters Patent shoqld be read with I v1-:his correeti-on therein that the same may conform to the record of the case in the -Pa-teut Oflice. l

Signed and sealedthis 14th day of`-December,' A. D., 1909. 'I {SEAL} Y A o. o. BILLINGS,

Acting 'ouzmnissz'oner of Patents.

Crrecionl Atainirig, fijee fxjom incrustation :L series of signed my name, at lzhilndelphiu, Pennsylvania, this ninth dey of December, 1903.

GEORGE lV ESLICY C l-ULDS.

` evapo'ifntiifg Aprins, contituting :L multiple LifeeIt, by constituting eaoh vessel in suoces- I sion the one from which the concer'itinte'ls 5-dishargel and the one towhich the mwi ilVitnesses:

- liquid.- is=mtroduced. l brio. l". MUARTHUR,

ARTHUR in'. Pimm.

1.1i. testimony whereof, I have hereunto .It isi-hereby ceftied that-in Letters Patent No. 936,760, granted October 12,

1.9.09, liponj the lapplication of George Wesley Childs, of Ridgway., Pennsyhania.,

4for an improvement in Processes of Concentruting Liquids, an error appears in fin; Leners, avmf No,- 936,760.9I i

the `printed speceation requiring correction` as` follows: Page 4, line 3, the word affect should. read eprect; and that the said Letters Patent shoqld be read with I v1-:his correeti-on therein that the same may conform to the record of the case in the -Pa-teut Oflice. l

Signed and sealedthis 14th day of`-December,' A. D., 1909. 'I {SEAL} Y A o. o. BILLINGS,

Acting 'ouzmnissz'oner of Patents.

Crrecionl It is hereby certiiied that in Letters Patent No. 936,760, granted October 12,

i 1909, upon the application of George Wesley Childs, of Ridgway, Pennsylvania,

for an improvement in Processes of (jonwntrating Liquids, sm error appears in tent No. 936,760.

i the printed specification requiring correction as follows: Page 4, line 3. the word I "ai`ect Ihould lead effect; and that ,the said Letters Patent should he rend with i this correr-tion therein that the same may conform tothe record ofthe case in the Patent Ofiiee.

Signed and sealed this 14th day of December, A. D., 1909.

[SEAL] y o. e. BILLINGS,

Correctiqn n Letters Ra

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