DE735344C - Device for degassing sulphite pulp liquor - Google Patents

Description

Apparatus for degassing sulphite pulp liquor The invention relates to a device for degassing sulphite cellulose boiler liquor; existing from a closed, with a liquid i; ets outlet and a gas vent as well as- a pressure relief tank provided with a supply line for the Ioclierlauge.

III the waste liquor from sulphite pulp cookers is more or less gaseous contained dissolved Scli @@ efeldiovcl, which with re- "e \\ - iniiun_- -for the fresh liquor preparation \ -er @@ - enciung can find. The recovery is not just for economic reasons l @ t-ünclen, but moving is advisable. because, - if that: dissolved sulfur dioxide remains in the waste liquor, disadvantages occur in the subsequent processing of the waste liquor can. For example, the lye would not be very useful for producing sulphate of alcohol.

llati has therefore been striving for a long time, so far this is possible. the Iocherablauge from the dissolved sulfur dioxide to to free. Achieving this is more or less in the pulp industry perfect 1'is tried. The degassing of the aluminum solution is very efficient, dala she ge @@@ öhnlicli the stove init Telnperattiren \ "is granted those over ioo = liecn. As a result, a sudden I #: litsllanllunder Ahlaugge finds on = \ tnio # llhärendrucl; instead of: a not inconsiderable amount of f: ntspannungsdampf escapes. which significantly supports the oil in the waste liquor.

For the purpose (for degassing), he used very large, brick-lined iron vessels, especially in the past, in which (the eleven spamne waste liquor usually fell on a baffle plate .

All of these l? Nt @ asun @ stinrirhtunen have complicated installations. the (linen! wake up.) the lye jet in as much liquid light jets as possible outside and through the correct impact of these rays the purpose: induction a 7_er; taulmng a better I: nt @ asun @ s \\ "irl; un @ to achieve.

Most of the hekatunen Imerlbauten always hold the great disadvantage (lall (they reaction and impact forces of the liquid jet, n the skin in from a mechanical point of view excessive stress, so that with frequent repairs (calculated from degassing device uTr (lell.

For example, it became known at a roasting gas desalination% Trtahreli. Direct the liquid onto rotating shit and let it spin it off, whereupon it is fed to a second row. In this way, very extensive atomization is achieved. Air flows in through the gases from below and not only carries away the delusted sulphurous acid, but also the fine liquefied gels and / or lees with it, which degas from Roof lye would definitely be avoided.

It has also become known. The atomization of the Eocher liquor through several nozzle-shaped nozzles attached to the separation vessel, the outlet openings of which are evident. have a very strong cross-sectional constriction in relation to the supply line. This verendun full of nozzles for (her lülchcrlau-e is also based on the idea that the separation of gas and liquid: an aim to achieve through strong atomization of the digester liquor. lein sudden exit (be 'overheated and under pressure l) # -lin (Ilicllen Ablau-e from (last @ ltisenfürnli @ cn mouthpieces in a haulll of Atnio- @ l @ ll: ire @ t (lrttch or l'lltcl' dl "tlek becomes a Auf- # cltiiumcn or Auiteilcil (her all: I already, #: 11r \\ - C'll @ ehelt (1 divided i" iil) fclle # il to nel: @l; trti @@ cr unity brought about by the after-earth: unification. Towards (Icrartiger hliissigl; eitsilelrel sets himself apart from all very sclutell and] äLit accordingly also from (lelll GaLs117.C11Lt111 hardly faithful tlell, apart from the fact that claf.i hcini known \ - experience the caustic outlet in tinmitt, close to the _ \ bzu, -slcitung for (they (aase and vapors angcordtl-et is. namely (light under the cover of par eidungsl> ehalters.

In contrast, (she I1'tin (lun assumes (lal3 cs is disadvantageous, to bring about too extensive a breakdown of the high liquor. so a feisse to carry out atomization. On the other hand, the L # lüssil: eit has not been so largely divided who (lem that a slight Alldampfen desch @ \ "cfelcliox \ (i is possible. Accordingly the primary aim of the invention is directed towards it. The fluidity in the form is vain dutn do shift and in enough further distance, \ "o11 (lein. \ l) ztl #" ssttitzeli in a hurry to spread out the gas-fiinnigeti proportions - with Easily peel off kömwn without large amounts. of all-separated Künekeimtröldchen to solve with yourself.

The idea is seen in the realization of this idea. dafi at (lein end of the supply line for the SultmelWtoE-kocherlathe in (learn closed HntspanlunWslwliiilt "-r an atomizer nozzle is attached, in \" elche the high liquidity enters tangentially and helically on the inner wall of the 1) iise to one g, -sufficient green lines. from (her #ic without stowage in the form of one I \ e @ e @ l11at11t @ 1S exits. So that one possible: t, t; riindlich @ Intgasung of the lukewarm reaches \\ "1r (1 is the cone of the exiting liquid droplets l) 7 \\". the liquid layer greiittnet downwards. According to ziller embodiment of the invention is provided (the atomizer in the lower part of the l: ntsliaimtuigsllehers, so that above it there is still a sufficiently large space for the droplets of liquid to be separated out \ "orhan (hn is in the drawing is an embodiment of the gate direction stabbed the I: rtindun shown schematically.

.11111. i time vain Lün @ ssrlnlitt through the provision (her f #. location: _ \ bb. 2 consumes eill: #ll horizontal section in plan view.

1: i11 fintamnmwgslehälwr t is the lower part with a; 7tlftlllrleittlll @ 2 for the desl>: utn; ttclc I @ ocllerlau @@ e uncl a111 floor lnit a _ \ u @ lal. @ Lcitull @@,; fül '(Ii, c # ntsl> annte Koch-rlatl; gc \ ersellen. Ollen is rill Allllal.istutzen. 4 fiil' (len withdrawing waterdanipi MICl 'glass all-drawing gas-free 12).>;ull; e- (lrclnet.. \ i11 'Alde of the supply line or the Ztiittlirstutzen: = ini container is a Zcraäubcrdüc;; tn, -ellracht, (place outlet i) filltlllr downwards, 11i1 <(11C '(1e111 ans stepping hole straight beam the fort t of an I \ egl'llnautes glhi: -. One can as a tütt @) er (@ üs <'title Zcntriftigal'zerstäti ierdüse \ @er \\ - ends whose dimensions are <1.'n \ "et-_ llltni <müf.üt, @ @rofin A1) lati - cnlcn'cll are chosen. 171e entsliannte-A1) lye enters tangellally the nozzle and with a strong swirl from the Nozzle \\ - 1e (1e1 "atls. Die- Zentrltugall @ raat % er reil.it the liquid in small "I'rül) fcicn, the I11 its totality is roughly a IllailtelHache form. The advantages of the extremely long advantages Direction according to d, 1- invention are the following: r. Large @icscll \\ - ill (li @ l: eit der l @ lüssi_ I_ tl "OI) fClleIT., 2. Extraordinarily large liquid sol) cr- ' surface. which the escape of the I: 1 tsllanntiligs-. dainllfe; and the srll \\ - efli @ en acid el: - clarifies. ' 3. Clean separation, (1e1- liquid from fas and Danihf. since the liquid after iahen straightened out and gas l111 (1 1) anll) f can escape to Obetl. self (fear the car drawn through. Uni also the initially \ 'o111 Danll) t with- finer 1'lllsslgkeitstr () litch'il Ge opportunity to split up with elwn. 1 ;; u111 (A) get the @erst <iu)); r (insert .accordingly high calming r1 are provided. j. Through (never immediate: \ L) fültrun dvi- Entl) anntcn Alalatige will (never 1) c1 other Faculties occurring frequently e l: l-- Appearance \ 'humiliate. daf) the ents)) anote l.au, ge lr: itn longer @ -er \ ceilen in the 11ta: r from dune (sasrauin \ viedcr sch \\ - etli; @e las. al) sorl) ic: rt. (i, I11fol; te the under r to I) echriel) ellell The main content of the I @: ntsl) annun @ sl) el @ iltcl-s on (las free- i11'st- ni <i-l'iche \ lal.i reduced \\ "cr <len. so (iaf.l it is 1) absolutely possible. these little ones lattasun @ eiuriclltun @ ren in, cschlossatell kiunicii. For example, atn 1 \ ocher1JOCkII, up To deliver,

Claims (1)

hATE \ T_1 \ SPni'CnE: I. Device , 7.11n1 T @ 11t @ a @@ In \ 'o11 Sultitzel stottl: ocherlauge, ordering atis a #eschlos: ellell. with a liquid , ' and fast gas outlet as well as a supply line for the cooking area \ -crsehencnlntsl> annun @ shehälters, thereby - "denotes that at the end of the supply line (2) a>: device: tatil) erdüse (; i an; @ "eln-acllt, into which the digester liquid enters taiwential and schraulictlliuenüirniig on the hmenwand of the nozzle zii a sufficiently large outlet i ') ttiiitn #, str @ int. from which it exits without congestion in 1 # ortn Eins I @ eclmantels. 2.% rrichtung according to claim r. dahel: ennzeiclinet. dal.i der Keggel der; tuar.tell (1 ° nl lüa # i: @l: eitarüPficlletl 1) z \\ -. (1i'1- l # liisigkeitsschicht down -eiiow fit.,;. \ @ Nrrchtttn @ according to claim r or 2, thereby @el: ellnzeiclulct, dalli the atomizing nozzle (;) in the lower `1'e11 (nasty Ents @ ) an @ uusl) eh: ilter @ (ii \ "orgeseheu is, so that there is still a sufficiently large. \ 1> sazranm for (never al) to be separated 1 # lüssi; @l: cicstr @ iltcllen.