SE127027C1 - - Google Patents
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- SE127027C1 SE127027C1 SE127027DA SE127027C1 SE 127027 C1 SE127027 C1 SE 127027C1 SE 127027D A SE127027D A SE 127027DA SE 127027 C1 SE127027 C1 SE 127027C1
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Description
Uppfinnare: J. E. Nyrop. Inventor: J. E. Nyrop.
Prioriiet begiird frcin den 9 oktober 1941 (Danmark). Prioriiet begiird frcin den 9 oktober 1941 (Danmark).
Foreliggande uppfinning hanfOr sig till ett salt for torkning eller koncentrering ay vatskor, kristallisering av losta eller smalta amnen eller for utforande av likartade processer, varvid vatskan, som skall behandlas, utsprides I finfordelad form i den oversta delen av en I huvudsak sluten kammare, torkkammare, till -Olken en huvudstrom av ett gasformigt medium tillfores, likaledes i den oversta delen och fran mitten ay kammaren. Det salunda for torkningen, koneentreringen eller kristalliseringen anvanda mediet avgar fran kammaren sedan det genomstrOmmat denna, foretradesvis fran kammarens nedersta del, eventuellt tillsammans med det torkade, koncentrerade eller kristalliserade amnet eller en del av detsamma. Uppfinningen avser dessutom en for sattets genomfbrande lampad apparat. The present invention relates to a salt for drying or concentrating in liquids, crystallizing loose or narrow substances or for carrying out similar processes, the liquid to be treated being dispersed in finely divided form in the upper part of a substantially closed chamber, drying chamber. , to -All a main stream of a gaseous medium is supplied, likewise in the upper part and from the middle ay the chamber. The medium thus used for the drying, concentrating or crystallization exits the chamber after it has passed through it, preferably from the lower part of the chamber, optionally together with the dried, concentrated or crystallized substance or a part thereof. The invention further relates to an apparatus for the set-through lamp.
Dylika forfaringssatt aro kanda, vilka emellertid lida av den olagenheten, att en forhallandevis stor yolym hos torkkammaren kraves for indunstning eller torkning ay en given vatskemangd per tidsenhet, varjamte den finfordelade valskan har benagenhet att avsatta sig pa olika stallen pa torkkammarens vaggar, spridarhuset, gastillforselr5ret o. s. v. Such procedures are known, however, which suffer from the disadvantage that a relatively large volume of the drying chamber is required for evaporation or drying in a given water shortage per unit of time, etc
Det an kant att meddela det genom forkkammaren strommande, gasformiga mediet, i det foljande benamnt torkmediet, en skruyrorelse, varvid det dock visat sig, att de namnda olagenheterna icke bliva a-vhjalpta genom denim atgard. Likaledes Or det kant att in-fora torkmediet genom oppningar i torkkammarens yagg, men haryid kan det icke undvikas, att vaggen blir jamforelsevis varm. DO del Or mest ekonomiskt alt anyanda hog torktemperatur, kommer yaggen ofta att bliva sa yarm, att amnen, som komma i beroring med eller fastna pa densamma i annu fuktigt tillstand, bliva mer eller mindre skadade eller )branda». Det Or darf Or fordelaktigare att in-fora torkmediet genom en kanal, som utmynnar i mitten av kammaren och i enlighet med den fOreliggande uppfinningen anyandes ute- slutande detta forfarande. Harigenom kan torkkammarens yagg hallas relativt kall, sO att amnen, som komma i beroring med den- samma, icke bliva branda och man uppnar goda resultat aven med for varme mycket Omtaliga amnen Det har nu visat sig, att en yasentlig orsak till att en stor torkkammarevolym erfordras Or, att torkmediet under sin rorelse mot torkkammarens nedersta del, oavsett em detsam- ma meddelas en skruvrorelse (d. v. s. en rota- tion omkring torkkammarens axel jamsides med rorelsen neat) eller ej, har benagenlaet att bilda en virvel omkring en vagratt ringformig aid. I denna ringvirvel ror sig forkmediet i riktning nedat narmast intill vaggen och i riktning uppat rid centrum. It is advisable to announce to the gaseous medium flowing through the fork chamber, hereinafter referred to as the drying medium, a screw movement, in which case it has been found that the said malfunctions are not aided by denim action. Similarly, it is advisable to introduce the drying medium through openings in the yag of the drying chamber, but it cannot be avoided that the cradle becomes comparatively hot. DO part Or most economically or any other high drying temperature, the yag will often become so hot that the substances, which come into contact with or stick to it in another moist state, will be more or less damaged or "burn". It should be more advantageous to introduce the drying medium through a channel which opens into the center of the chamber and in accordance with the present invention excludes this method. As a result, the yagg of the drying chamber can be kept relatively cold, so that the substances which come into contact with it do not become flammable and good results are obtained even with too much heat. Substantial substances It has now been found that a major reason for drying chamber volume is required Or, that the drying medium during its movement towards the lower part of the drying chamber, regardless of whether a screw movement is announced (ie a rotation about the axis of the drying chamber jamsides with the movement neat) or not, has the tendency to form a vortex around a horizontal annular aid . In this annulus, the fork medium moves in the downward direction closest to the cradle and in the upward direction of the riding center.
Den namnda virvelrorelsen upptrader sida yid sida med torkmediets allmanna rorelse ned mot kammarens nedersta del och innebar alltsa, att torkmediets partiklar rtira sig i ett va.gratt snitt, som ligger under spridaren eller spridarna och under tillforselstallet for tork- mediet, mycket snabbare nedat i narheten air kammarens yttervagg an den rorelsehastig- het, som betingas av mangden torkmedium, som tillfores eller uttages fran torkkammaren per tidsenhet, och av torkkammarens tvarsnitisarea. I mitten ay kammaren yilja torkmediurnpartiklarna daremot rora sig uppat eller i vart fall rora de sig nedat med mindre hastighet On den, som betingas av den per tidsenhet tillforda och uttagna torkinediumrnangden i forhallande till torkkamma- rens tvarsnittsarea. I de fiesta fall Or virvelrorelsen sa kraftig, att torkmediumpartiklarna faktiskt rora sig i riktning uppat i den centrala delen av kammaren. The said vortex motion occurs side by side with the general motion of the drying medium down towards the lower part of the chamber and thus meant that the particles of the drying medium move in a very sharp section, which lies below the spreader or spreaders and below the supply number of the drying medium, much faster down in near the outer wall of the chamber to the rate of movement due to the amount of drying medium supplied or withdrawn from the drying chamber per unit time, and to the transverse cutting area of the drying chamber. In the middle of the chamber, on the other hand, the drying medium particles move upwards or at least they move downwards with less speed than that which is due to the torque supplied and taken out per unit of time in relation to the cross-sectional area of the drying chamber. In most cases the vortex motion is so strong that the drying medium particles actually move in the upward direction in the central part of the chamber.
Virvelbildningen paverkas icke namnvart av om torkmediet bringas att rotera omkring kammarens lodrata axel men Ras, darest endast en spridare anbringas i kammarens mitt, vilket av manga andra orsaker Or sarskilt fordelaktigt. 2— — Som en. foljd av denna virvelbildning kommer det finf8rdelade materialet att relativt hastigt foras nedat i den yttre delen a-v torkkammaren. En del av det salunda transporterade materialet fares visserligen tillbaka i riktning uppat i virvelns centrala del men en stor mangd darav strammar i stallet direkt till utloppet. Som en foljd av denna alltfor snabba passage av en betydlig del av materialet genom kammaren, kan endast forhallandevis litet material tillforas per tidsenhet, for att den onskade torkverkan skall uppnas. Ddrtill kommer, att en del av det material, som av virveln transporteras uppat i kammarens mellersta del, har tendens att komma i bertiring med den kanal, genom vilken torkmediet tillfores eller med den. vid dennas aversta ande anbragta fordelaren. Tillforselkanal ens vaggar aro emellertid relativt varma och material, som kommer i kontakt med desamma, blir darfor latt skadat. Ehuru den upphettade ytan, med vilken det finfordelade materialet salunda kommer i beroring, är mindre an darest torkmediet tillfores genom torkkammarens vagg, och den materialmangd, som eventuellt kommer i beraring med densamma, avenledes ar mindre, Or det onskvart att sa langt som majligt undvika denna olagenhet. The vortex formation is not significantly affected by whether the drying medium is caused to rotate about the vertical axis of the chamber, but Ras, where only one spreader is applied in the middle of the chamber, which for many other reasons is particularly advantageous. 2— - Som en. As a result of this vortex formation, the comminuted material will be conveyed relatively rapidly downwards in the outer part of the drying chamber. Although some of the material transported is transported back in the direction up in the central part of the vortex, a large amount of it flows in the stable directly to the outlet. As a result of this too rapid passage of a considerable part of the material through the chamber, only a relatively small amount of material can be supplied per unit of time, in order to achieve the desired drying effect. In addition, a part of the material transported by the vortex upwards in the middle part of the chamber tends to come into contact with the channel through which the drying medium is supplied or with it. at its lowest spirit placed the distributor. However, the supply channel even rocks are relatively hot and materials which come into contact with them are therefore easily damaged. Although the heated surface with which the finely divided material thus comes into contact is smaller than the drying medium is supplied through the cradle of the drying chamber, and the amount of material which may come into contact with it is also smaller, it is advisable to avoid as far as possible this illegality.
Pa liknande salt bildas i den aversta delen av torkkammaren ovanfor tillforselstallet for torkmediet en ringvirvel, som gar den motsatta vagen, d. v. s. partiklarna i den yttre delen av kammaren foras•uppat, medan partiklarna invid kammarens centrala del stemma nedat. Denna ringvirvel medfar latt, att en del finfordelat material avsatter sig pd den oversta delen av kammarens vagg, p. taket eller pa spridarhuset, vilket det likaledes Or anskvart att undvika. On similar salt, in the uppermost part of the drying chamber above the supply number of the drying medium, a ring vortex is formed, which travels in the opposite direction, i.e. the particles in the outer part of the chamber are carried upwards, while the particles near the central part of the chamber are downwards. This annulus easily causes some finely divided material to settle on the upper part of the cradle of the chamber, on the roof or on the spreader housing, which is also difficult to avoid.
Pd insikten om dessa forhallanden är den. foreliggande uppfinningen baserad. The insight into these conditions is that. present invention based.
I enlighet med uppfinningen forfar man darfor sa, att man i torkkammaren alstrar en eller flera sekundarstrommar av torkmediuna, vilka m8ta av den central. tillforseln av huvudgasstrommen och eventuellt av den finfordelade vatskestrommen betingade virvlar under en rorelseriktning, som gar tvars mot eller i motsatt riktning mot virvlarnas rOrelseriktning, sa att dessa brytas eller motverkas. According to the invention, it is therefore claimed that in the drying chamber one or more secondary streams of the drying medium are generated, which face off from the central one. the supply of the main gas stream and possibly vortices conditioned by the finely divided liquid stream in a direction of movement which goes opposite or in the opposite direction to the direction of movement of the vortices, so that these are broken or counteracted.
Ett av de forfaranden, enligt vilka denna effekt kan uppnas, ar att tilifOra en sekundarstrom i riktning uppat langs torkkammarens yttervagg eller yttervaggar. Denna sekundaxstrain kan t. ex. tillforas Iran den nedatvanda spetsen av en torkkammaren nedat avslutande kon eller pyramid. En dylik sekundarstrain kommer att motverka den. ovan beskrivna under tillforselstallet far torkmediet bildade virveln och kan eventuellt helt f Orhindra densamma. One of the methods by which this effect can be achieved is to supply a secondary current in the upward direction along the outer wall or outer walls of the drying chamber. This secondary axis train can e.g. Iran is supplied with the submerged tip of a drying chamber down the concluding cone or pyramid. Such a secondary train will counteract it. described above during the supply number, the drying medium forms the vortex and can possibly completely prevent it.
Ett annat fOrfarande, genom vilket man en ligt uppfinningen kan bryta eller mot-verka den n.amnda skadliga ringvirveln, är att inMasa en eller flera sekundarstrommar i torkkammarens yttervagg eller yttervaggar i hajd med eller under tillforselstallet for huvudstrommen i vagratt eller snett uppatgaende riktning. Med tillhj alp av en sadan_ sekundarstrom eller sa.dana sekundarstrammar kan man uppdela den namnda skadliga ringvirvein i tva', av vilka endast den oversta giver partiklarna en nedalgaende stromningsriktning vid yttervaggarna, medan den nedersta daremot kan giva partiklarna en uppatgaende riktning vid yttervaggarna. Del Or dock icke avgarande att regelbundna virvlar av denna art uppsta, utan det Or fullt tillrdckligt, darest blott en lugnare stramning eller virvlar frambringas, som aro mindre och darfar icke kunna astadkomma ett icke onskat paskyndande av transporten av det finfordelade materialet genom kammaren. Another method by which, according to the invention, the broken ring vortex can be broken or counteracted is to insert one or more secondary drums into the outer wall or outer walls of the drying chamber at a height with or below the supply number of the main stream in a horizontal or oblique direction. By means of such a secondary current or such secondary currents, the said harmful ring vortex can be divided into two, of which only the upper one gives the particles a descending flow direction at the outer walls, while the lower one can give the particles an upward direction at the outer walls. However, it is not crucial that regular vortices of this kind arise, but that it is fully sufficient, if only a calmer tightening or vortices are produced, which are smaller and should not be able to bring about an undesired acceleration of the transport of the finely divided material through the chamber.
Ett tredje salt, pa vilket ringvirveln under instramningsstallet f Or torkmediet kan motverkas, Or att frambringa en nedatgaende sekundarstrom i mitten av kammaren, antingen genom inblasning ovanifran eller utsugning, foretradesvis langs vaggen av en i mitten av kammaren uppskjutande kanal, genom vilken torkmediet Mores fordelaren. A third salt, on which the annulus during the tightening of the drying medium can be counteracted, is to produce a descending secondary stream in the middle of the chamber, either by blowing from above or by suction, preferably along the cradle of a channel projecting in the middle of the chamber, through which the drying medium is distributed. .
For mot-verkande av den namnda skadliga ringvirveln, som bildas Over tillforselstallet for torkmediet, kan Oven anvandas en eller flera sekundarstrommar t. ex. en sekundarstrain i riktning utat omedelbart under larkkammarens tak. To counteract the said harmful ring vortex, which is formed over the supply number of the drying medium, one or more secondary drums can be used, e.g. a secondary train in the direction outwards immediately under the roof of the larch chamber.
For sekundarstrommarna anvandes lampligen frail torkkaiumaren uttaget torkmediurn, varvid uttagningen ken ske speciellt for detta andamal och liksom tillforseln av sekundarstraramarna kan utnyttjas for att bryta eller motverka de icke onskade virvlarna genom att utsugningen ager rum i en riktning, som avviker Iran huvudstrommens rorelseriktning -vid utsugningsstallet eller -s tallena. For the secondary streams, the drying medium was suitably used from the drying chambers, the extraction being done specifically for this purpose and as well as the supply of the secondary streamer frames can be used to break or counteract the unwanted vortices by the extraction taking place in a direction deviating from the main stream. or -s numbers.
En for genomforande av forfaringssattet lamplig apparat, som har en torkkammare, i vars Oversta del är anbragt en eller flera spridarorgan far den for koncen.trering avsedda vatskan och i vars mitt finnes en. fordelare, fran vilken en huvudstromett gasformigt torkmedium kan utstromma i alla riktningar, kannetecknas darav alt en eller flera tillforselledningar for sekundarstrommar av torkmedium Oro anordnade i torkkammaren i en eller flera riktningar, som avvika frau eller eventuellt Oro naotsatta vatskepartiklarnas rarelseriktning vid det ifragavarande stallet av kammaren hos den av huvudstrommen bildade ringvirveln. An apparatus suitable for carrying out the procedure, which has a drying chamber, in the upper part of which one or more spreading means are arranged, receives the liquid intended for concentration and in the middle of which there is one. distributor, from which a main stream of gaseous drying medium can flow out in all directions, may be characterized as one or more supply lines for secondary drums of drying medium. Arranged in the drying chamber in one or more directions, which deviate from or possibly in the annulus formed by the main current.
Sekundarledningarna kunna t. ex. utmynna va.gratt eller vara riktade uppat i kammarens yttervagg. Vid en sarskilt fordelaktig utforingsform utmynnar en sekundarledning i — —3 riktning uppat vid den nedat riktade spetsen av en kammaren nedat avslutande kon eller pyramid, varvid framfor mynningen ãr anbragt en kon- eller pyramidformad skarm, som dirigerar sekundarstrommen langs vaggen. Likaledes kan en sekundarledning utmynna i mitten av kammarens tak med riktning utat mot omkretsen eller vid andra stallen med daremot svarande riktningar. The secondary lines can e.g. end va.gratt or be directed upwards in the outer wall of the chamber. In a particularly advantageous embodiment, a secondary conduit terminates in the direction upwards at the downwardly directed tip of a chamber downwardly terminating cone or pyramid, a cone- or pyramid-shaped screen being arranged in front of the mouth, which directs the secondary current along the cradle. Likewise, a secondary conduit may open in the middle of the roof of the chamber with a direction outwards towards the circumference or at other stables with corresponding directions.
A ritningen visas nagra utforingsexempel pa apparater, utforda enligt uppfinningen. The drawing shows some exemplary embodiments of devices, challenging according to the invention.
I fig. 1 visas en for sattets genomforande lampad anlaggnings-, tork-, koncentreringseller kristalliseringskammare, for korthets skull benamnd torkkammare, 1 vertikalt snitt genom axeln. Fig. 1 shows a plant, drying, concentrating or crystallization chamber, which is lighted for the set-through execution, and for the sake of brevity is called a drying chamber, 1 vertical section through the shaft.
I fig. 2 visas en annan utforingsform av kammaren i likartat snitt. Fig. 2 shows another embodiment of the chamber in a similar section.
I fig. 3 visas en schematisk bild av en anlaggning, i vilken torkkammaren ingar. Fig. 3 shows a schematic view of a plant in which the drying chamber enters.
I fig. 1 beteeknar 1 en roterande spridare, som hanger nedat fran mitten av taket i en behallare 2 i form av en cylinder eller manghorning. Under spridaren är anbragt ett fordelningsorgan 3 for inblasning cv torkmediet, som t. ex. kan hesta av varm luft, torr anga, forbranningsprodukter eller liknande, Fordelningsorganet är anbragt vid mynningen av en kanal 4, genom vilken torkmediet tillf5res utifran. Fordelningsorganet kan hava en krans av skovlar 11, som omlanka det utstrommande torkmediet tangentiellt och darvid meddela det en kretsrorelse i behallaren eller torkkammaren 2. Denna avslutas nedtill medelst en kon eller pyramid 9, i vars understa spets finnes ett utt5mningsorgan 8 for det finfordelade och torkade, koneentrerade eller kristalliserade materialet, som samlar sig darstades. Frhn den kon- eller pyramidformade delen av behallaren utgar en avloppskanal 5, -cars nedatriktade mynning her en skarm 6. In Fig. 1, 1 denotes a rotating spreader, which hangs downwards from the center of the roof in a container 2 in the form of a cylinder or mango horn. Below the spreader is arranged a distribution means 3 for blowing in or the drying medium, which e.g. For example, the distribution means is arranged at the mouth of a channel 4, through which the drying medium is supplied from the outside. The distributing means may have a ring of vanes 11, which circumferentially tangential the outflowing drying medium and thereby impart to it a circular movement in the container or drying chamber 2. This is terminated at the bottom by means of a cone or pyramid 9, in the lower end of which there is a discharge means 8 for the finely divided and dried , the concentrated or crystallized material which accumulates there. From the cone- or pyramid-shaped part of the container a drainage channel 5, -cars downwardly directed mouth here has a screen 6.
Pa sidan av torkkammaren mynnar en sekundarledning 7 horisontellt, genom vilken infores en sekundarstrOm av torkmedium. En annan sekundarledning 15, genom vilken bortsuges en sekundarstrom av -torkmedium, mynnar i en ringformig spalt omkring den nedersta delen ax ett lodratt parti av ledningen 4. On the side of the drying chamber a secondary line 7 opens horizontally, through which a secondary stream of drying medium is introduced. Another secondary conduit 15, through which a secondary stream of drying medium is sucked out, opens into an annular gap around the lower part ax a vertical portion of the conduit 4.
Det har visat sig, att cla torkmedium till-fares genom kanalen 4, medan samtidigt torkmedium bortledes genom ledningen 5, eventuellt tillsarnmans med en storre eller mindre del av det finfordelade materialet, en ringvirvel uppstar under tillforselstallet for torkmediet, vilken ringvirvel, antydd med pilen 27, har en nedatgaende riktning vid yttervaggen och en uppatgaende riktning i mitten av kammaren. Denim ringvirvel motverkas dels genom utsugning av torkmedel genom sekundarledningen 15, varvid langs ledningens 4 lodrata parti uppstar en stromning, .som Or nedatriktad och alltsa har motsatt rikt ning mot ringvirveln, och dels genom inblasning av torkmedel genom sekundarledningen 7, varigenom ringvirveln brytes, i det att de med pilarna 25 antydda strommarna strava att utbilda sig. Harigenom forhindras, att finf8rdelat material fbres den direkta vagen iied- atyttervaggen till kammarens nedersta del. It has been found that cla drying medium is supplied through the channel 4, while at the same time drying medium is discharged through the line 5, possibly together with a larger or smaller part of the finely divided material, a vortex arises below the supply number for the drying medium, which annulus, indicated by the arrow 27, has a downward direction at the outer wall and an upward direction in the center of the chamber. Denim vortex is counteracted partly by suction of desiccant through the secondary conduit 15, whereby along the vertical portion of the conduit 4 a flow arises, which is downward and thus has the opposite direction to the vortex, and partly by blowing desiccant through the secondary conduit 7, whereby the annulus is broken, i that the currents indicated by the arrows 25 strive to educate themselves. This prevents finely divided material from being conveyed directly to the lower part of the chamber in the lower part of the chamber.
Vid den. i fig. 2 visade utforingsformen Or sekundarledningen 7 utsugningsledning. Dessutom Or uttomningsorganet 8 ersatt med en sekundarledning 28, genom vilken infores en sekundarstrom. Framfor mynningen av denna ledning Or anbragt en kon- eller pyramidformad skarm 10. En tredje sekundarledning utmynnar i en spalt 14 vid den oversta delen av ledningen 4 omedelbart under fordelningsorganet 3. En fjarde sekundarledning utmynnar i en spalt 13 under taket. At it. Fig. 2 shows the embodiment Or the secondary line 7 extraction line. In addition, the discharge means 8 is replaced by a secondary line 28, through which a secondary current is introduced. In front of the mouth of this conduit Or arranged a cone- or pyramid-shaped screen 10. A third secondary conduit opens into a gap 14 at the upper part of the conduit 4 immediately below the distribution means 3. A fourth secondary conduit opens into a slit 13 under the roof.
Ringvirveln under fordelarens 3 niva motarbetas redan i viss grad av utsugningen genom sekundarledningen 7, i det att denna forsiggar i va.gratt riktning och darigenom bryter ringvirvelns nedatgaende riktning langs yttervaggen av kammaren. I annu hog-re grad motverkas denna ringvirvel emellertid genom den genom sekundarledningen 28 tillforda sekundarstrommen 29, som genom skarmens 10 inverkan riktas uppat utmed torkkammarens sidor och salunda strommar i motsatt riktning mot den icke onskade ringvirveln. Aven den sekundarstrom 30, som till-Ewes genom spalten 14 och som strammar neat langs kanalen 4, tjanar till att motverka den under fordelningsorganets 3 niva. bildade ringvirveln, i det att denna ju strivar att meddela torkmedelparLiklarna en uppatgaende rorelseriktning i kammarens mitt. Genom spalten 13 infores en sekundarstrom 31, som Or riktad utat Olt under taket och som darvid motverkar den ringvirvel, som har benagenhet att bildas Over fordelningsorganet 3 och spridaren 1 och som gar uppat vid kammarens periferi, mat langs taket och nedat i kammarens mitt. The annulus below the level of the distributor 3 is already counteracted to a certain extent by the extraction through the secondary line 7, in that this sails in a slight direction and thereby breaks the downward direction of the annulus along the outer wall of the chamber. To an even greater extent, however, this annulus is counteracted by the secondary current 29 supplied through the secondary line 28, which by the action of the screen 10 is directed upwards along the sides of the drying chamber and thus flows in the opposite direction to the undesired annulus. The secondary current 30 which flows through the gap 14 and which flows neatly along the channel 4 also serves to counteract it below the level of the distribution means 3. formed the annulus, in that it of course strives to communicate the desiccant pairs an upward direction of movement in the middle of the chamber. Through the gap 13 a secondary current 31 is introduced, which Or is directed outwards Olt under the roof and which thereby counteracts the annulus, which has a tendency to form over the distribution means 3 and the spreader 1 and which goes up at the periphery of the chamber, food along the roof and down in the middle of the chamber.
Sekundarledningarna kunna utmynna i torkkammaren p0 flera andra satt an som visats och beskrivits. Salunda kan t ex. i still-let for en enkel i behallarens sidovagg mynnande sekundarledning ett antal dylika finnas, som Oro jamnt f8rdelade runt hela periferin, eller kan ledningen 7 mynna i en behallaren omgivande ringformig fordelningskammare, som star i forbindelse med torkkammaren genom larnpliga oppningar, I. ex. i form av en ringformig spalt i behallarvaggen. The secondary lines can open into the drying chamber on several other sets as shown and described. Salunda can e.g. instead of a simple secondary conduit opening into the side cradle of the container, there are a number of such, which are evenly distributed around the entire periphery, or the conduit 7 may open into an annular distribution chamber surrounding the container, which communicates with the drying chamber through linear openings, e.g. . in the form of an annular gap in the container cradle.
Mellan skarmen 10 och avloppskanalen 5 ager en viss klassificering av det av torkmediet medairda indunstade eller torkade materialet rum, i det att det minst vattenhaltiga, lattare materialet foretradesvis foljer med den genom kanalen 5 avgaende strommen av torkmedium, medan mera vattenhaltigt och tyng- 1— — re material fortsatter nedat i mellanrummet mellan skarmen 10 och konens 9 vagg och dar gripes av sekundarstrommen 29, med vilken den Ler fares uppat i torkkammaren. Between the screen 10 and the drain channel 5 a certain classification of the material evaporated or dried by the drying medium takes place, in that the least aqueous, lighter material preferably follows with the stream of drying medium emanating through the channel 5, while more aqueous and heavy Re material continues down in the space between the arm 10 and the cradle of the cone 9 and is gripped by the secondary drum 29, with which it is moved upwards in the drying chamber.
Vid den i fig. 3 visade anlaggningen, som endast far betraktas som ett spicifikt utf5- ringsexempel bland man.ga tankbara utf8- ringsformer, vid vilka indunstnings- eller torkapparater i enlighet med den foreliggande uppfinningen kunna inbyggas och utnyttjas, betecknar 21 ett friskluftinsugningsror, som Sr framdraget till en flakt 19, som braser den insugna luften genom en kalorifar 18 in i kan.alen 4, genom vilken luften ledes till fOrdelningsorganet 3 och darmed infores som huvudstrom i indunstnings- eller torkapparaten. Avloppskanalen 5 for huvudstrommen av torkmediet leder till en_ centrifugalseparator i vilken huvuddelen av den koncentrerade eller torkade produkten avskiljes, och darifran till en tvattcyklon, filter eller liknande i vilken den_ sista resten av det medfoljande amnet kan avskiljas, och slutligen genom ett utblasningsr8r 23 i det fria. Fran utblasningsroret ar vid den visade utforingsformen avgrenat en returledning 22, genorn vilken en medelst ett spjall 26 eller pa annat salt reglerad del av den. bortgaende luften pa nytt kan insugas i systemet och blandas med den luft, som insuges utifran genom insugningsr8ret 24. In the plant shown in Fig. 3, which may only be considered as a specific embodiment among many conceivable embodiments in which evaporators or dryers in accordance with the present invention can be built in and used, 21 denotes a fresh air intake pipe. which is drawn to a flake 19, which bursts the sucked-in air through a calorie vessel 18 into the duct 4, through which the air is led to the distribution means 3 and thereby is introduced as main stream into the evaporator or dryer. The drain channel 5 for the main stream of the drying medium leads to a centrifugal separator in which the main part of the concentrated or dried product is separated, and from there to a washing cyclone, filter or the like in which the last residue of the accompanying substance can be separated, and finally through a blow-off tube 23 in the free. In the embodiment shown, a return line 22 is branched from the exhaust pipe, through which a part of it regulated by means of a damper 26 or on another salt. the exhaust air can be re-sucked into the system and mixed with the air which is sucked in from outside through the suction pipe 24.
Torkkammarens sekundarledningar 7 och °eh 28 aro inbordes forbundna med en cifkulationsledning 17, i vilken Sr insatt en flakt 16. The secondary lines 7 and 28 of the drying chamber are inboard connected to a circulation line 17, in which a flap 16 is inserted.
I stallet fOr cirkulationsledningen kan anlaggningen hava fOrbindelseledningar frau sekundarledningarna till motsvarande delar av ledningssystemet fOr hu-vudstrommen, allteftersom en tillforsel eller utsugning skall aga rum, i det att uppfinningen joke ar i och for sig riktad mot anordningen av en eirkulation av torkmediet utanfOr torkkammaren utan mot att genom tillfOrsel eller utsugning av torkmediet bryta eller motarbeta de av den eentrala tillfOrseln av huvudstrommen och eventuellt av den finfordelade vatskestrommen betingade, icke onskade virvlarna. Instead of the circulation line, the plant may have connecting lines from the secondary lines to corresponding parts of the main system line system, as a supply or extraction is to take place, in that the invention is in itself directed towards the arrangement of a circulation of the drying medium outside the drying chamber. against breaking or counteracting the unwanted vortices caused by the central supply of the main stream and possibly the finely divided liquid stream by supply or extraction of the drying medium.
Vid den visade anlaggningen enligt uppfinningen astadkommes en cirkulation av relativt stora mangder torkrnedel per tidsenhet. Uppfinningens andamal kan aven forverkligas genorn att mindre mangder torkmedium tillfores genom harfor lampliga munstycken, nOr tillforseln sker pa sadant satt, att de namnda, icke onskade virvlarna brytas eller motverkas. In the plant according to the invention shown, a circulation of relatively large amounts of drying unit per unit time is achieved. The spirit of the invention can also be realized in that smaller amounts of drying medium are supplied through suitable nozzles, when the supply takes place in such a way that the said, undesired vortices are broken or counteracted.
Claims (9)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SE127027T |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SE127027C1 true SE127027C1 (en) | 1949-01-01 |
Family
ID=41925368
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SE127027D SE127027C1 (en) |
Country Status (1)
| Country | Link |
|---|---|
| SE (1) | SE127027C1 (en) |
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0
- SE SE127027D patent/SE127027C1/sv unknown
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