US1937156A - System of beater engines - Google Patents

Description

Nov. 28, 1933. w. v KNoLL 1,937,156

SYSTEM OF BEATER ENGINES ll/i 7 IIIIIIIHHIII! W. V. KNOLL SYSTEM oF BEATER ENGINES Nov. 28, 1933.

Filed June 28, 1928 3 Sheets-Sheet 2 Nov. 28, 1933. wf vf KNOLL 1,937,156

SYSTEM OF BEATER ENGINES Filed June 28, 1928 5 Shee'LS-Sheel ."5

Ao, r apparatus Vas v Well asfthe means and mode of op-jf eration of pulp-an'diibei' treatment and prepara- Patented YNokvl'ZS, f f

'William lv. Kneilj Dayton, ohio, assigner to' i'riie f Midwest- Fulton V'Machine' Companyea corpo? `ration of *Ohio f Aplilieatio .nine 28, 19

The-present apparatus Ais"employed1 inr lieu ofj a series of thec'ustomaryHollandertype 'ofgbeaters wherein the pulp followsa'circuitous path of repetitious'beatingfineachsucceeding tub, the

v cnditionedstockbeing transferredzfrom one Vtub to another. In the present system and apparatus there 'is f employed a plurality of l beatern rollsv each housed in a i concave `A`setting vhaving vtherein the customary bedy plate co-acting tizith'the^v` roll,

which units are interconnectedin series by interimediate conveyors toreceive the material from u v onefbeater roll and dischargeit tothe next beatery roll for successivebeatingfaetion ,throughout the system. The pulp is thus;Worked*Withouttv cessationA or interruption from the vdige'stororfgrinder until itis ready: for` use upon the paperlmaking machine.V The conditioned pulpl maybe dis--V charged Sinto .acommon oitake conveyor` at ,any

' Vstage `ofthe successive operations, Vthus making the system extremely rflexible `and enabling the Y simu1tamaous`differenttreatment ofcistinetiy differentjkinds'of fiber.' ISoda-pllp and sulphite pulp-,"sulphite pulp and g'roundjWood,y or rags and 'fsulphite pulp; or 'otherdesiredcombinations maybe '-initially'beaten separately and subsequentlyY mixed togetherl in the desired.- proportion Vatany predetermined point in theprocess to 'receive'. further combined" treatment. Furthermore vthe steps of claying,v sizingand-coloring may 'peper'. Y formed automatically `and `cc,nntimiouslyfwith thek f beating or fiberliberating'andshortening"opera-k y u Y u y l K y l the gravityoperated system illustratedfin-Figr. r

Fig. ,G-is ia' detail sectional viewjofa-mgdineoagf, Yforifof beaterfrollorthe rod in illv type lwhichisl tions. *"4* 'n Y Y .M j azi 'The "object of therinventionis 'tosimplifythe l operation, andunlikelyto'get out of repair.. z y It has beenjconservatively estimated vthat an tion,V whereby Vthesuccessive steps of itreatment and preparationA may beconti'nuously performed:

' Without: cessation or 'interruption andto provide an apparatus which Will `'be compact, andfWhich will Vrequire [minimum powerf for' operation,` 'uni'- f form in. its iaction; substantially automaticin.

" will occupy .the ilocr'space oi" two Hollander type",

beaters and will :deliver approxi'rnatelyftvvei'it'y-V five tons of pulp per hour, which isthe equivalent output ofrtwentyvel-Iollandertype! beaters' With-V 2st. serial No'. zssz a power `reo uirerrierit of 2215 H, P. 4as compared 1 with fa power requirement rOL2000-Il, VlI-f'of such twentyilvez Hollander Vbeaters Adeliveriigfajllre amount;

"'A Yfurther-"object `oftheinvention isto provide 60' vasystemand'methodof'great ilexibilityandcagf Apable of vhandling a Wide Varietyjoiv materials r including Y s ulphite stock ',fsO'daV stoekukraftl stock,V groundwood, 'ba'gasse lropejute, rag and mixed A r paper stoelgand furthermore anytwo or more'O 65" thesematerials 'may lbe'fsimultaneously treated ing in combination.V

'- A further; object ofthe invention iet'e provide While'` in thev` intermediate convwis between "suc-# ceeding beater rolls ofr-the`system. u g

*Withth above lpririfiari'f and other' incidental objects inview,V as-will moreA fully appear the thereof, and the mode of fopei'ation, or their equivalents-l as hereinafter described and Aset 'l forthinlthe'clainiils'. r Y

wherein is showithe'preferred u v` u V u u necessarily the: only form 'ffembodiment of lthe f invention,V l'ig'.'1'V is a plan lview'ofja duplex` system of arrangement of beater rollsinvolving the-prestemin cross section 'andindicating the transfer--V` ferred'from oneunit to anthebyrgravity; Qliig.Vv 4' is atop plan lview-and Fig. 5a frontelevation-of used at] onebr more I points; throughout the'y sys-'1 tem. `F ig. 'Tis alon'gtudinal sectional viewofa portionpf. the beatery roll illustrated in Fig. 6. fl

` i' linvv the presentconstructionf each fof V'the beater 10ov unitsromprises:asbeater roll vor'drum 1` which is "Ordinarily pfovidedwth the usual proirutingiiy bars 'Of'maybe 'providedxwiih k:relleisfer beater Y barsiabout its periphery byiwhichthe pulp fibers are beaten,zrubbed orcutasgthe' character .ofthe 1.05 .material and its purpose or condition of use may requiredl These beater-.frolls'lare located in con:-

Acave housingsz which ls'ulostantially conform to a considerable portionof the periphery of ;the

b'eaterfrolls 1. Such concave? housings lor'set-V 1170 Vfertile agitating and` rhydrating Aof fthe.A stock i vspeoiication'the'inventionconsists;ofthe features 75V y Y lof-iconstructiong the-parts" and 'Combinations tingsf2 arereversely curved at opposite sides of the beater roll or drum 1 to provide a graduallyv contracting receiving throaty 3 at the intake side of the roll and to Vprovide what is ineiect a backfall 4 at' the opposite orvdischa'rge side of the roll.A Located at the bottom of each of such concave housings or settings 2 is the usual Abed plate 5 which may be of `any desi-redextentand, constructionin accordance with'thetype of roll and character of "the work to -be performed at the particular stage ooperation.' TherpulpV tovbe operated upon is discharged into the throat 3""of the Y concave housing or setting, preferably though not necessarily, from a screw conveyor by which it is conductedgf rom thefpreceding beater unit or other pulptreating'mechanism Such pulp continuously discharged into the throat 3 is subjectedy to asq'u'eeZing'` orwconipressing action of the roll or drum as the latter rotates carrying the vpulp downwardly between the roll and the concave wall of the housing. Thev squeezingfand rubbing action prec'zeding the passageof .the-pulp between they bed plate y5 and the roll l greatly facilitates the fiber separation and better conditions the `pulp for treatment over ,the bed plate. The treated pulpis carried up charged overthe rearwardoutwardly haring wall I the next siicceeziling beater unit. During` itsV Vovf'vdthe housingfeor setting 2 `in quite ,the saine.` `manner as pulpisiordinarily discharged yover `the usual backfall.. l This discharged pulp is received in asecond conveyor,byawhiehY it is conducted to progress, through the conveyors between succeed'- Ibeater unitsthe pulp is subjected to aconstant hydratingjand stirring action or agitation which facilitates theli'berationof theiibers and reduces it to auniform consistency preparatory tov reworking.

,. Such habermewifntheii memset don' veyors connecting themL ine series.A maybe suc;y

unit and vdischargesinto `the intale side or throat 3 of the succeeding unit. Pulpentering the first Vunit of the .series from Ythe dgestorfor storage tank is conducted. successively through any \de Y; sired number of the beaterA units, and whenthe pu1p.isreduced to the desired CvOns'istency/itwis discharged into a common offtake conveyor' 19 through anextension 8.of one of the intermediate conveyors `v'7. The conveyor 9 which may4 vreceive pulp at `any intermediate Lstage Vci operation-v"car-`V ries. the *pulp through' successive `stages ofv color-V ing, claying,szing\, etc..r The various-.tanks orv receptacles fornsupplying therc'olo'ring,V filling and` sizing -materials communicates directlyrwith the-V ccmnrionv conveyor 9 asfshownat 10 andl 11,. or

suchconveyor may discharge-into a; systemkof segregating conveyorsV illustrated hat 12, 113 and 14, with the branch conveyors of which the vari i ouscolor, sizing and lling tanksor vessels com-v. j municate as illustrated at'15', land 17; Y' f To provide for thetreatmentfot pulp-of differ-- entcharacterlwhich may be later combined, onev kind of pulp' may .be introducedrinto the` first-1 beater'runit ef the series and after -havingstra'- versed a p redeterrnined numberv of such units `it maybe discharged into the conduit extension 8 into the common offtake conduite. f At the saine time pulp of different character may be fed through a succeeding plurality of thesainev series ofbeate'r units, and after having traversed the desired number of units such pulp of different i character mayv bedischarged into l,the same oiti takeconduit wherein the `two -kinds of L`beaten pulpare interxnixed with `eachther. 'In'r Fig. 1k of the drawings there are shown two entirely i istinct systems each comprising.,aplurality'cf beater units and two offtake conveyor l*conduits 19.. The .conduit extension 8 leading from vthe VY beatervunits of veach of theseparate systems'- are adapted tofdischalge into either of the offtake conveyor conduits 5,9 at will. These conveyors are providedy with gates' or valves, whichby their ofeither of the systems with either of the oltake conveyor conduits. 9.-?'It is also under--l stocd that the conveyor: conduits 7l are provided with valves or gates,` iwherebyifinsteadjci #dise charging-norn1ally; `into thel intakeL side-foi a beater unit-suchconveyors'lrnay be caused-to dis'- chargeythroughthe conduit f extension VSfinto kadjustment'nfxay'connectthe di'iierent beater arrangement allows great exibilitysin-theoperation of thesystern-.andthe treatmentofthe pulp,

`perimltting the pulp .to tbe{dischargedrintothe c'talte conveyor 9 atanyndesired stageofA opera: Thus-a `quantity of Apulp-may becaused tion.

to continue through the. -entirelgseries t untsbf the lsystem or it inaybe released nto the oltalie Yconveyor yconduit 9 after havingqvpassed through any desired portion of such beater-units, in which cc-'seif so desired, pulp of dii'erent,char.-`

acters may oelsimultaneously treated in. thesuc ceeding beater unitl for -dischargev into.: the Ysaine ,O itake cenveyor conduit. 9 or intoy ldifferent vc i'ftalgeccnveyor of which two have been shown,

A gate.or`,..-valve 18.in lthe ydistributing system,

separatesy the rnaterial 'fromA the respective ofitake conveyors 9 so that such materialis not neces# sarilyintermixedf Y Y t Fig.l 2 shows transverse "sectional view'sof several, beater `units of the series illustrating howthe discharge Accnveyor `'conduit of one unit becomes the intake or supply'conveyor @tithe-succeeding l unit. l While screw conveyors -are preferablyj,ein-` ployed for .transferring the .,rnaterial 'throughE the intermediate Qconduitsl antinfor simultaneously:k -1

agit-ating @and 'hydrating' l the beaten pulp; such .pulp may befconveyedfromfoneunitto another rigs. 3,4 ande, wherein the; beater reggiana their.V concavehousings v2` are located.;- 'atdifferentgj levelsVA as more-*clearly yshown'in,lig.-; 3.; f'TheQ pulp. is initially supplied tothe heater unitori i the; highest levelfandV dischargedrfroin the. outi put side of'each beaten-unit to-theY intake; ofl thelsucceeding ,beater` yunit-50h; the-next lower g level -Howevergas shown in Fig. {lj-the beater units `are offset laterally; relative to eachother on -thediferent'-level so that thepbearten pulpf.

is made to travelV a greater 'or4 less distance through the intermediate'conveyoryin'fquite the same manner. as isillustratedin Fig; 1. 'During the travelzrof the beaten pulp through the' con@ Y veycr system 'from onelbeater unit'to'another, whether itbe'byzmeansfof screwconvey'orsas in pulpissubjected toimoreuorv less agitation which causes 'the .water toapenetrate .more thoroughly into thebeaten fiber,'causing'A thelbers tobe T i v8;. In an a'pparatu's'ofv thecharacterdescr-ibed,

a plurality-'of `beater/units each including'a yrevo- `luble beater roll,V a concave settiIig'fthGreOr, a

-pulpin'take portionv at-one side of'the roll and` a'pulp discharge portion at the opposite side of the 'f roll, saidfplurality "of beater units" beingfdi Vvided intoA separate series,A `conveyor ,conduits conn'ectingv the discharge portion' of l each `unit,` With the intake rportion of another? unit "fof the 1 same series, anv oftake Vconduit common tothe! units of both series and outlet conneetionsfordischarging pulpinto said common conduitatinterme'- fdiatefstages of operation-ofthe vunits of the rel lspective series.-`

9.` In an apparatusjof a'plurality of beater units each'including-arevoluble beaterV roll, a"`concave setting?therefor-,f"aJ pulpfin-takeportionr at one sideV ofv the roll fand a pulp'discharge portion. at the oppositeside ofthe roll, saidfplurality oir beaterunits 'being divided into separate series, conveyor conduits connecting the discharge portion of 'each unit with the intake portion' of` another unit of the same series, separateofftake conveyor'v conduits andffoutletconnections connecting the discharge Vportions of unitsoi the diierentgseries With'y both said "offtake conduits, and cuto'sV Wherebyfsuch discharge may be ,directed to one or` the otheru of v 'f :beate thef'oftakexconduits atfvs'lill';` l0.-In a beater-'unitforpulpy a rotariyfdrum, afconcave housing substantially conforming to ythe.lovversegmental shape of the drum, the' op-V "overwhich the material is discharged laterally,

K form a gradually contracting throat into whichpositejends of suchconcave housing'beingfoutl Wardly'iiared at 'oppositesides of the-drum to afford' Vparallel supply. .anddisch'arge Y channels communicating with s'u'ch flared portion, aA gradi uallyf,contracting receiving throat'at the intake side of the drum into which thesupply-conduit laterally discharges Yand a 'bacl'fall over Whichithe l pulp is dischargedat the output'sideof the-:drum

intothe discharge conduit, said supply and' discharge conduits conducting the material't'o'gand awayffrom the -roll infdirectionssubstantially parallel therewith. A- v f if f-r' `A1l'. A beater unit'for. pulp, comprisingarev lubleubeater'roll, a concave housingconfrming Vt'othe lower 'periphery of-the roll 'WithinfWhich;

theY roll is positioned, said concave housing Lbeing extended upwardly',v in' flaring relation With'lthe periphery of the lroll at the intake side thereof to thejmate'rial operated upon is lreceived and-a transverse. supply conduit -discharging laterally intoijsaidithroat. I 'i .1; w *12. Abeater unit for-pulpincludingajrevoluble beater roll, a'concave'receptacle vvith,in-'Whic'zhthe'l roll is-concentrically mounted, said` receptaclebe-' c. ing yextended upwardlyginfflaring relation with'k the fperipherylofV the roll at rboth theiront and back 'thereoi` 'and supply 'and discharge conduits conveying material to and frornthe roll in direc-l tions parallel g therewith and fcommunicating' late'rally with `the Haring portions 'of the receptacleat opposite sides of the'roll.

13. vbeater unit `for pulpvincluding "a 4revo- "lubl'e beater roll,` la v concave receptacle Within.` v which theroll is concentrically mounted, said receptaclebeing extended upwardly in flaring` re-' .lation with the periphery ofthe 'ronfatbotn the front and back thereof, saidflaring portionsfo'r the receptacle being of convex form and` trans-r' versefsupply and discharge vchannels V`comm,uni'"` `eating with such flaring portions'ofV thereceptacle.

the "character "described,

n 14;. The herein described"methodn of pulp treatgment lconsisting infthe simultaneous progressive canyi'ngfo'n continuous operation.

315. VAbeater unitcomprisir'igv a revoluble drum,

l a concave setting inwhich -the drum is' mounted, a vpulp'"receivingv portionvv at one side of the drum andapulp discharge portion at the opposite side longitudinally disposed pockets aboutf its peripherygjaf plurality of Yrollers looselyjournalled in saidfpockets forl limited 'lateral movement under in'ue'nce. of "gravity as the carrying drum rotates.

16. A beater uunit` comprising-va revoluble'drum'.

a concave' setting in which the drum isv mounted, apulpreceiving` portionat'one side ofthe drum and a'pulgq'discharge portion'at the opposite vside lof the' drumrjand' a plurality'fof` vgravity woperated Y inembers'looselymounted aboutr the periphery of the ,druwnfand free for to'and'fro movement in radial directions imping'ing'upon the pulp as the drum etes: i i

f1 beat rl for` pulp, including alrevolubleV rlroll, A oncavei'housing iiiithin which the roll 'is moiinted, 1 and a'iconve'yori "located at the `suppl jside'bf the Vroll*through whichrth'e mate-A rialiis bon'ductedfto lthefroll in avdir'ctior sub-l Y stantwially `parallelwith, thaXiS'thereQf andfrom which such material overflows laterally from the c'onveyorextending intothe housingA besidev the roll* thereby`V tending to distribute 'rrateriall supi,- plied 'to the rol ough'out substantiallyfitlie full 1ngtnytnereor; f Y A f f 18. erf

eat it 'for pulp including a revoluble v 211,? a concat/ je 'housing Within 'Which'ltlie rollv -`moin ited fand linvcyor located at@ the .discharge side iof the rolcxtending below the level?!'i'the` side-Wall of the housing andf parallel .Withthe rollthrough which the material'isiconvductedavvay ,fromV thefbeaterrollin Ia direction Substantially pralllelvvithfthe axis thereof rand. Whichreceivesi-the Vmateriallaterally frein-'the i housing' throughput@substantiallythe fuiifiepgth f th @1L- L f ,-z j f "19`.' Afbe'at'er iinitfor pulp incl-iidin'g'a revoluble' beater"roll,` a concave housing vvithinwhichj'the roll is mounted, gand'ffs'upply and2 discharge ,chan-- I I'els :extendingj'i v' parallel srelation 'with thek roll onefat 'ea'ch 'sidefthereof for? conducting the nia- Vterialto and 'from theroll'in direotioi'isr-jloungitu-y 130,

dmauytirer'eof. p y l .n Y 5720i'Aljeaterunit forv pulp, including a revoluble'j beater oil, a'concave housing Within which the roll is mountedjafsupply channel *extending ini` parallel relation"Withthefroll at lthereceiving 135 sideoftheho'using 'and conducting the material' longitudinally-'ici the'rollrand 'discharging laterally into the housing besidey the rolllie ` j 22,1. A beater unit Vfor pulp, including arevoluble .beater rollga concavefhousing-.Within*which the 14@ roll-fismounted, andadischargechannel extend: ingfinparallel relation withr'theiroll at the dise chargeside of theghousing land communicating laterally ldirectly therewith vfor conducting' the material] away freni# the roi-1 in :a 41gngitmiinai- 145` direction relative"tlfleretcfsaidj'channel` receiving i the ydiscllargY o'nrthe housing throughout Subj 'Stahtiallvtn rumene/tn of the ron* y 225'Ihel'ier'ein` describedjmethod -of'treating pulp, Lincluding "separately treating 4"diferentiltt batches of 'pulpwhile iiowing injcontinuou's separate streams-progressively through successive stagesjintermixing the separately treated streamsr` l as, avsmglegprodluct' Y A y pulpv by separately treating different continu-k vf treatment.

Y 23.V The herein' described method. oftreating pulp, including continuous operation of simultaneously ,beating separatelbatches of pulp each flowing in a separate stream. throughsuccessive beaters, Y intermixing the.; separately beatenbatches of pulp and collectivelysuloijectingthe" intermixed pulp `batches to vfurther treatment.

1 n i forrnoyementtherein to positionsin .which they 24:.` The herein described `rn thodof jtreatingi:

"roll, and a fsurfacewith which the elements pro- Y "gressively .coact to eectan'impinging and ruba while flowing in a single stream.l

ously flowing streamsV of rpulp through successive beaters, uniting the diierent streams of pulp into r aY single continuously `flowing stream, andfsub'-V jecting the pulp in tween. such single stream' to further 25; A beater engine 4for pulp" making, including a revoluble roll anda bedplate with which "the rolll cooperates andybetween which bed .plate and i `the roll the pulp operated upon is passed, and .a

plurality yof beater elements loosely arranged about the periphery of the roll and -freely movable 'radially relativetheretohaving operatlye engageal y ment when extended with the'pulp passing over` 26. A beater enginefor pulp making, including'y a revoluble yroll-having in its periphery a plural.

ity` of longitudinally extending recesses,V and a protrude "beyond :the peripheralsurfacelof the bing'action uponthefmaterial passing therebef 10oA plurality ofelongated `beater;elements loosely coniinedwithinsaid peripheral recesses and free'v ,795 mLLIAM V.KNOLL.

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