US1447226A - Tar separator and regulator for the same - Google Patents

Description

A. ROBERTS TAR SEPARATOR AND REGULITOR FOR THE SAME Mar.v 6,` 1923'. l 1,447,226

Filed July e, 1920` 7 mmm-sheet 1 ff /9 g5 INVENTOR Mar. 6, 1923. 1;'4473226 A. ROBERTS TAR SEPARATOR AND REGULATOR FOR THE SAME Filed July 6, 1920 '2 sheets-'Sheet 2 INVENTOR Mdm sa: y

ATTR Ys:

Mar. 6, 1923.' 1,447,226 A. ROBERTS TAR SEPARATOR AND REGULATOR FOR THE SAME Filed July, 1920 '7 sheets-sheet s vNfl*- :u l\""`r 4 Mar. 6, 1923.

Filed July IG, 1920 '7 sheets-sheet 4 A. ROBERTS TAR SEPARATOR AND REGULATOR FOR-THE SAME Mar. 6, 1923. y l 1,447,226

Filed July G, 1920 '7 sheets-smet 5 Mar. 6, -1923.

A. ROBERTS TAR SEPARATQR AND REGULATOR FOR THE SAME Filed July 6, 1920 '7 sheets-sheet 6 www f/eSS/ I Mar. 6, 1923. 121`7,226

A. ROBERTS TAR SEPARATOR ND REGULATOR FOR THE SAME Filed July G, 1920 '7 sheets-sheet '7 Patented Mar. 5, 1923.

UNITED stares rara y l erica; y

k.ARTHUR ROBERTS, OF -EV'ANS'I0N, ILLINOIS, ASSIGNOR, BY'M'ESNE ASSIGNIVIIENTS,l TO CHICAGO TRUST COMPANY, TRUSTEE, 0F CHICAGO, ILLINOIS, A CORPORATION.

TAR SEPARATOR AND REGULATOR FOR THE Application filed July 6, 1920. Serial No. 394,305.`

To all whom 'it 'may concern:

Be it known that I, ARTHUR Ronu'rs, a citizen of the United States, residing at Evanston, in the county of Cook and btate of Illinois, have invented certain new and useful Improvements in rIar Separatore and Regulators for the Same, of which the following is a specification.

This invention has reference to improvements in tar separat-ors and regulators for the same. The invention has tol do with the construction of the regulator itself and the combinationof the same with the tar separator7 and also 'with the construction of the tar separator itself.

In order that the features of the invention may be more easily understood, I will rst explain briefly the 4general construction of the tar separator and its mode of operation,-

and will-then explain the construction and operation of the regulator and the manner of its combination with the separator. I

One of the features of the invention concerns itself with the construction of the tar separator. In this connection an object `is to provide a tar separator ofsuch form :that the separation or removalof the tar from the gasesis effected by causing the gases to be dra-wn through a series of relatively small orifices under such pressure and velocity that thecontained tar will be precipitated, so that it will run down over or can beremoved from said surfaces. In this connection it may be stated that the effectiveness, with which the tar will be thus removed, will dependlargely upon the velocity at which the gases are drawn or forced through the relatively small orifices aforesaid; and this in turn will depend largely upon the pressure existing on the two sides of the plate or element through which the orifices pass. In case the volume of gas flowing through the orifices changes., it will be evident that the pressure will also change and also the volume of gas passing through each orifice, so thatif the velocity of the Gases flowing through the orices is to be maintained constant ,or` substantially constant, it will be necessary to vary the number or amount of the orifices-from time to time according tothe changes in ysaid gas volume.

lOne of the features ofy the invention has to do withvthe provision of a construction of separator vwhere/inthe gases are passed through a platel ork pla-tes extending-in a more or less vertical fashion and provided with a series of relatively small orifices atv different vertical elevations, in combination with a container or vat within which ltar may be contained so that theelevation of said tar will control the number or. amount of orifices` exposed to the passage of the gas by cutting oft' more and more of the surfaces of said orifices as the elevation of the tar within the container or vat is raised;` F l f The automatic regulation of the said separator for the purpose 'of ensuring a substantially uniform pressure on both sidesofthe plate or plates may, therefore, be secured by causing the tar toeither rise or fall within said container; and this adjustment orvvariation of the elevation of the tar surface may be made either automatic, or manual, or combined, as desired.` Another feature of the invention haste do with the provision ofv means whereby the regulationy of the levelof the` tar surface may be varied either manual, or automatic,`

or by a combination `of thesetwo; land in this connection Lto provide an arrangement wherebyr when automatic regulation is to be secured, vthe regulator itselfvmay be adjusted from time to time so as ,to maintainla. predetermined and selected differential of pressure within the apparatus. Y Other objects and uses of heinvention will appear from a vdetailed description of construction vand combinations of partshereinafter described and claimed. u

Referring'tothe drawings: v y y Figure l shouf's-afside elevation of a` tar separator embodying certain features of the present inventiomfthe tar separatorfin this figure being lshown disassoeiated from the automatic i'fegulatingy mechanism;

Athe same which consisus in the. features of y Fig. 2 shows a top plan view-ccrresponding to Fig. l; p -f Fig. 3 shows ahorizontal section takenon yline 3 8 of Fig.` l, looking in the direction of the arrows; A ,y i

v F 1g. l shows aside elevatlQIJ. Q a tal' SQP` arator having attached thereto a regulator embodying the features of the present invention;

Fig. 5 shows a view similar to Fig. L1, with the exception that Fig. 5 is taken at right angles to Fig. 4;

Fig. 6 shows a detailed elevation of a regulating device;

Fig. 7 shows a vertical cross section of the construction shown in Fig. 6, being at right angles to the position ofFig. 5 ;v and Fig. 8 shows a top plan view corresponding to Figs. 6 and 7.

I will iirst describe the construction o tar separator shown indetail'in Figs. 1, 2, and 3, and will'then explaiiiftlie construction oi' regulator which I have illustrated in conjunction with the separator.'

The separator proper comprises a tank 10 generally of cylindrical form, and provided with top j and ' bottom closures 11 and 12. Ordinarily a horizontal partition 13 will be located across the lower portion of the tank toprovide a manifold or the like let in said lowerportion. A gas inlet connection 15 serves to deliver the untreated gas into said manifold.

Extending upwardly from the partition 13 is a series of tubes or pipes 16, the upper ends of which are generally' open. Extending down over each of these tubes or pipes is an enclosedscreen or'plate 17 whose upper endA is ordinarily closed, and as is clearly evident from Fig. 1 the side walls of said plates or screens 17 are perforated usually with a` large number of relatively small per forations. The various platesy or screens 17 may be conveniently carried' by a common spider or'frame 13 suspended by a rod 19 which extends through the top 11, said rod connecting by a chain 20 with a segment 21 on the lever 22 which is pivoted to a bracket 23st a point 24. A rod 25 may be provided having its upper end connected tothe lever 22v and its lower end to a hand wheel 26 so that by turning said handI wheel the lever may be tilted or rocked in order to raise or lower the screens or plates 17 in unison.

The gas entering through the connection 15 and manifold 141;k will pass up through the tubes or pipes 16 and' through the plates or screens 17 into the space at the upper end of the tank vwhence it may he delivered through a delivery connection 27.

It will be evident thatithe number and amount of the perforations Y exposedy :tor the passage effgas through the screen or pla-tes will depend 'upon-theVv level oi"v the liquid tar within the tank, andfalsofthe adjustment/of the4v screens or i'al'ates r vertically.

Assuming that the screens or `pla-tes are iiedfin a given verticaly position, then the amcuntofsaid exposure will depend upon the elevation of the liquid tar intlie 'tank 10. The higher" t'h'es'aid'tar rises" -in A"said" tank the smaller the number and amount of perforations exposed, and consequently the smaller the volume of gas which may pass without rise of pressure; or conversely as the tar level is raised, the number; and amount of perforations exposed is decreased, so that the volume of gas must decrease in given proportion or else the pressure on the two sides of the plates or screens will"in` crease. v

l will now explain-*the construction oi the regulator which I have illustrated. Said regulator'is shown in detail in Figs. 6, 7, and 3, to which reference may irst be had. This regulator includes a cylinder or tank 28 within which is carried o-il or other suitable liquid at an elevation of perhaps one-half of its height, said elevationbeing conveniently shown in the gauge 29. The cylinder 28 has its top and 4bottom portions closed by the cap plates 30 and 31 respectively. f

lVithin the cylinder 28V is located an inverted bell 32 of light and gas-tight construction, and which is free toy move up and down within the cylinder. A gas connection 33 communicates withV a pipe 34 which eX- tends upwardly within the bell to a point near its roof.v Consequently the space within the bell is subjected to the pressure of the gas from the connection 33. Another' connection 35 may be established in thel upperportion of the cylinder 28, so thatthe outside ot the bell will be subjected toi its pressure. Consequently the bell will tend to rise by the dilerential existingbetwe'en saidipressures.

A rod or stem 36 has its lower portion secured to the roof of the belhand said lower portion may dependV into the-tube 34 and through a bearing 37 which assists in guiding the movement ofthe stem 36 up and down. The upper end of said stem 36 extends into and is secured toa cap 38 and a tube 39 depends downwardly from said cap to a' point near the top closure'3()` of the 110 cylinder 28. A pair of tubes 40 and l1l exftend upwardly from the cap plate 3()k to a point near the location of the cap 38. The tube i() is located inside of the vertically movable tube 39, andthe tube'v 41 is outside of 115 said vertically movable tube, so thata liquid seal may be established for the 'tube "39 between the tubes 40 andfi'l7 as'by theuser of mercury or other liquid. Mercury is desirable for this purpose since itha's very 120 high specilic gravity and makes iti possible to seal against rela-tively heavy "gas pressures with an apparatus of*ccmparativelysmall height.

Adjacent tothe' apparatus just`I` described 125 located a pair oifpipes- 12' and L13, lone of which -seiwes` "as aninlet connection for' the conveyance off tar'into the tank 1Q, and the other of whichAl serves toconveythetarf away trein Saidtenk. 'Y i'dinilly"`thepipel42 1 l be the inlet'pipe and the pipe 43- the discharge pipe. lVithin these pipes are located are provided with the pinions` 50 and`51 re-y spectively. A gear .52 is ypivoted in said frame. said gear meshing' .simultaneously with the pinions 50 and 51. A lever arm 53 is secured to the gear 52 so that by rocking saidk lever arm, the butterfly valves 44 and 45 will be opened and closed or viceversa' in oppositionto each other. rlhat is to say,`

the opening of one o f these valves is simultaneously accompanied by the corresponding closing of the other. vThe cap 38 carries a cross member 54 which connects tothe lever arm 53 by a pair of links 55 and 56, and' said lever arm is conveniently bifuicated in its central portion, as sho-Wn in Fig.' 8, so that said central portion surrounds the aforesaid mercury or other seal.` It is, there# fore, evident that the lrising and falling of" the bellv 32 causes theopening and vclosing of the butterfly valves.' A dash pot 57 lmay be provided for dampening the movements of the lever V53, the upper and lower ends of saiddash pot being connected by a pip`e59- which has the valve 60.

The regulator so far .described may be provided With counter-weights 61 and 62 on' the lever arm 53 by means of which adjustment it is possible to set the apparatus to maintain at substantially uniform amount the di'erential pressure Within Wide limits.'

The aforesaid inlet and outlet pipes connect into thetanlr 'l0 as clearly shown in Figs. 4 and 5, the pipe 42 ordinarily connecting at a relatively high elevation 63, and the pipe 43 ordinarily connecting at a relatively"y low elevation 64." It is, therefore, possible to' secure `a Wide range. of regulation ofy the operating elevation of the tar Within the tank;

The connection 33 from the lower portion ofthe regulatorleads by' a pipe 65 to the inlet gas connection l5, and the connection 35 from the upper portion of the regu# lator leads by a pipe 66 to the outlet or de -l livery gas connection. 26. With this arrangement the regulator will operate aceord-` ing to the diiferential pressure existing withf in the tank 10.

The operation of this combined arrange-- ment Will now be readily apparent. s'tlie differential pressure increases, the bell 32 will rise, and the inlet butterfly 44'ivill close to some extent, and the outlet butteriiyl valve 45 will simultaneously open. The result will be thatl a' smaller amount of tar will delivered into ythe tank 10 vvvhileat the 'samev `1- timethedischarge ofy tar `from "said tank surface ofthe tar will falli this surface falls,the number and ramount of perforal,

'will Vbe more` readily accomplished, and *the tions inthe screens 'or 'plates jwillincrease,

thereby permitting" a more:readyfflovvjof gas and being accompanied by 'a reduction in' differential pressure. The action-*Will thus be perfectly automatic, and'thepressurevvill very y small be maintained constant limits ofk fluctuation.'

I Claim;

l. In a machine of the class described, tar

sepa-rating' means comprising a 'tanlna series of fixed pipes upstanding* from' -tl ie" i lloxver portion of the same, a vertically `movable bell over each'offsaid pipes having in itsy side walls kaj series of` relatively small'l perforations, means for manually adjusting the elevationof said-'bells With respect tojxsaid f pipes,` a 'connection for delivering lgas 'simultaneouslyinto the loi'iver` ends of vall of said pipes, a connection for delivering gas from the "upper vportion of the tank'and. means for regulating the.v operationoffsaid sepa-l rator comprising a'fluid inlet connectionjin the'upper portion'of thetank, 4a fluidfo'u'tletaV A connection in the'lovverfporti'o'n of theI ta'nlr,v4

valves in both of said connections'. and means lfor simultaneously causing an" openingvr movementof one valve and a IclosingA movement of the'other Vvalve operable according 'f l' "lOO to the differential 4of'ip-ressure:fbetwveen` "the inlet and outletl gasconnections, substan tially as described.` "f

2. Ina machine oftheclass described, tar

separating' means comprising a ta'nlrfjase-"`.5,'` v

ries 'of fixed'pipes upstanding from the lov/'er portion of the'` same; a vertically movable bell over each olfsaid pipes having `in its' side Walls a 'series of relatively`- small per-.

forations', af'conne'ction for' delivering" 'gas simultaneously into the lovver ends of all said pipes, a connection for delivering ,gas

from the` upper portiony of the tank, andi` means for regulatinglthefoperation of said-I separator yc'zonipris'ing fluid, inlet connection in the upper portion of the tank, a fluid outtanlr, valves in bothof said connections, and

l"iis i. let connection in thefl'owerportion ofthe 1 means for simultaneously causing an opening f movement of one valveand 'a `closing movel2() ment of thefother valve operable" according'- to the differential of pressure between the' inlet and outlet' vgas connections', suhstan-f" -tially as described.

In a' machine ofthe class'described,f't'arii separating means comprising a tank, 'a pipe upstanding from the lower portion "of the same. a, vertically vmovable bell' over 'said' pipe havinof in its sidevvallsa series of rela'- tively small `perforations means .forv inan-k u'allyy adjusting the elevation off'said bel l` i so' -I"or simultaneously Causing an opening movement of one valve yand a closing movement ofthe other valve operable' according to theV differential of pressure between the inlet and outlet gas connections, substantially as described I A Y il. In a machine of the classdescribed, tar

separating means' comprisinga tank, a pipe upstanding from the'lower portion of the same, an encircling pipe surroundingl the first mentioned pipe and having in its sidewalls a series of lrelatively'small perforations, a connection for delivering gas into thelower end olz the upstanding pipe, a'coniiection for delivering' gas from the upper portionv of the tank, and'means for regulating the op eration of said' separator comprising a fluid inlet .connection in the upper portion ofthe tank, aluid outlet'connection in thev lower portion of vthe tank, valves in both loi* said connections, and ymeans for simultaneously causing anopening movement of one valve and a closing movement of thek other valve operable according to the differential of pressure between the inlet and outlet gas connections, .substantially .as described.L

ln a machine of the class described, tar separating means comprising-a tank, a pipeV within the ysame havingfin its side walls a seriesof relatively small perforations, a connection tor delivering gas into the lowerv portion of 'said pipe, a connection't'orv de,

livering gas from4 the upper portion of the" tank, and means for regulating the operaf tion Vof ,said separator comprising a fluid inletfconnection in the "upperportion for the' tank, a fluid voutlet connection in the lower portion ofthe'tank, A-valves in both lof said connections, andmeans for simultaneously causing an opening movement. of one valve and a closingmovement of the other valve 7 operable according ,tothe*differentiall of pressureA between the inlet and;` foutlet gas connections, substantially as described.

6.l a machineiof the classfdesoribed, tar p, separating meansfcomprisinga tank having A' onfits nterior'a partition :provided witha seriesiffof relativelyfsmall perforations, gasv Connections Vin the'upper and lower portions ofthe tank ySor.introducing and withdraw# ing :gas from the tank, said gas passing.

through the vperfo'rationsiof said partitiom and means `or regulatiiiigv the operationv of said separator comprising inlet and Outlet liuid. connections 1 into the ltankt-valves in lootliy 'ofsaid connections; and "'me'ai'isfor si`l multaneously causingan opening movement,

of one valve andaclosing movement of the.

other valve operable according to the differ?l ential of pressure between the inlet and outlet gas' connections, substantiallyY as described.

7. In a machine of the class described, tar

separating'means including a partition prof vided with a series of relatively small perforations, a container. for tar or the like surrounding said partition, means for directing gas throughithe,perforationsof said parti-` tion, and meansfor regulating the elevation of the tar Aon said partition including conneetions for delivering tar into and yremoving tarl from said enclosure, valves in said connections, and means for simultaneously causing an openingmovement of one valve and y,a closingA movement of theother valve" operablel according to the differential of pressure on [the two sides. orn the partition, substantially as described.

8. ln a Vmachine of the class described,"tar separating means yiiicludinga partitionprovided witha series of relativelysinall perf forations,a container for' tar and the like surrounding said partition, means for directing gas through the perfo-rations of` saidr4 partition, and means forregulating the elevation of, the tar on said partition includingconnectionsflior delivering tar into and removing tar from said container, valves in d operable according tothe differential of gas pressure on the two sides of the partition,

, and a positive connection from said verti- 9. In a machine of the class described, tar

separating 'means .including a. partition provided iwith a series of relativelyismall perforations, ,a container for taror ythe likesurrounding said partition, meansk for direct ,said connections,- a vertically movable belling gasthroughy the perforations ofsaid partition, and means for regulating the elel vationof the tar on said partition including'v connections for delivering tar into and re` moving tar -from said container, `valvesl in saidwconnections, vertically'vgmovable belly operable according to thedifferential of gasv pressure on the two'y sides of the partition,

and means for moving lthe 'valvessimu, ltanefv ously, in opposite directions synchronously with the mevemenfsof @babel-1.f.wherebyl the amount .'ofopening .aiidclosing `inoveinent of.

the1 valves isv 'directly dependent upon `the j amountof vertical movement of the bell,

substantially described@ through the perorations of said partition, and means for regulatingthe eleva-tion of the tar on'said partition including connections for delivering tar into and removing tar from said container, valves in said conneetions, and means, operable according to the differential of pressure on the tWo sides of the partition, for simultaneously moving the valves lin opposite directions and synchronously with the changes of dierential of pressure,v whereby theopening and clos- ARTHUR ROBERTS.

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