SE193831C1 - - Google Patents

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Publication number
SE193831C1
SE193831C1 SE193831DA SE193831C1 SE 193831 C1 SE193831 C1 SE 193831C1 SE 193831D A SE193831D A SE 193831DA SE 193831 C1 SE193831 C1 SE 193831C1
Authority
SE
Sweden
Prior art keywords
filter
housing
discs
deposits
cradle
Prior art date
Application number
Other languages
Swedish (sv)
Publication date
Publication of SE193831C1 publication Critical patent/SE193831C1/sv

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D29/00Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
    • B01D29/39Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with hollow discs side by side on, or around, one or more tubes, e.g. of the leaf type
    • B01D29/41Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with hollow discs side by side on, or around, one or more tubes, e.g. of the leaf type mounted transversely on the tube
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D29/00Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
    • B01D29/62Regenerating the filter material in the filter
    • B01D29/70Regenerating the filter material in the filter by forces created by movement of the filter element
    • B01D29/74Regenerating the filter material in the filter by forces created by movement of the filter element involving centrifugal force
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D29/00Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
    • B01D29/88Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor having feed or discharge devices
    • B01D29/94Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor having feed or discharge devices for discharging the filter cake, e.g. chutes

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Centrifugal Separators (AREA)

Description

KLASS INTERNATIONELLSVENSK B Old12d:13 PATENT- OCH REGISTRE RI NG SVERKET Ans. 5252/1956 inkom den 116 1956 utlagd den 11/5 1964 H MULLER, ERLENBACH, SCHWEIZ Satt och anordning for att rengora ett skivfilter Prioritet beglird iron den 11 juni, 29 september och 28 oktober 1955 (Schweiz) Foreliggande uppfin,ning avser ett salt att rengora ett skivfilter scan är forsett med honisontella, pa en. vertikal ihatig axel anbragta filterskivor, vilka aro avsedda att roteras for att avlagsna avsattningar fran skivorna, eventuellt ,sainverkan med en. renspolning enligt motstrounsprincipen. CLASS INTERNATIONAL SWEDISH B Old12d: 13 PATENT AND REGISTERS OF THE SWEDEN Ans. 5252/1956 was received on 116 1956 issued on 11/5 1964 H MULLER, ERLENBACH, SWITZERLAND Set and device for cleaning a disc filter Priority beglird iron on 11 June, 29 September and 28 October 1955 (Switzerland) The present invention relates to a salt to clean a disk filter scan is provided with horizontal, on one. vertically driven shaft mounted filter discs, which are intended to be rotated to remove deposits from the discs, optionally, having an effect with a. rinsing according to the principle of countertrans.

Kontinuerligt arbetande filter sasom trumfilter aro kanda. De aro emellertid forhallandevis dyra I anskaffning och aro -vidare 1 vissa fall ej anvandbara. De aro endast lampliga for latifiltrerade vatskor oth for filtrering i stor ,skala. Del firms emellertid andra filter, t. ex. de vanliga filterskivorna eller filterpressarna, vilka aro anvandhara for fiera an.damal och som aven aro reIativt billiga samt inom ett begransat utrymmae uppvisa en avsevard filteryta. De aro dadar lampliga for svarfiltrerbara amnen men erfordra dock tamligen anycket underhallsarbete far hand. Dessa filter arbeta vidare ej kontiunerligt utan anaste chargeras. I ,synnerhet medfor utrensningen av filterkakorna pa dessa filter mycket arbete, eftersoin lute ens speciella rensningsanordningar kunna eliminera den olagenheten, att Ekren efter varje filtrering mate tagas isar och ater hopsattas. Filtre- ringsanbetetclarfor besvarligt och tids- kravande. Continuously working filter such as drum filter aro kanda. However, they are relatively expensive to procure and are in some cases not usable. They are only suitable for latil-filtered water shoes and for large-scale filtration. However, some companies have other filters, e.g. the usual filter discs or filter presses, which are used for several purposes and which are also relatively inexpensive and within a limited space have a considerable filter surface. They are suitable for answer-filterable subjects but require quite a bit of maintenance work. Furthermore, these filters do not work continuously but are otherwise charged. In particular, the cleaning of the filter cakes on these filters entails a great deal of work, since even special cleaning devices can eliminate the inconvenience that the Ekren has to be taken and reassembled after each filtration. The filtering service is clear and time-consuming.

Foreliggamle uppfinning undviker naannda olagenheter vid de kanda anordningarna och mbjliggor filtrating utan avbrott i filtreringen. Detta uppniis darigenom, att de fran filterskivorna genom centrifugalkraft I riktning snot filterhusets vagg utslungade avsattningarna hindras att traffa husvaggen eller att de lOsgaras .fran densannna medelst tryckmedivanstralar soma fran filterhusets ovre del Ire riktade nedat i det ringformiga rummet anellan filterskivornas kanter och husvaggen, och att avsattningarna uppsamlas I filterhusets undre del och ieventuellt under medverkan av lampliga hjalpanedel avlagsnas ur huset med hjalp av amuck tryckmedivan. The present invention avoids such disadvantages in the known devices and allows filtration without interruption in the filtration. This is achieved in that the deposits ejected from the filter discs by centrifugal force in the direction of the cradle of the filter housing are prevented from hitting the housing cradle or that they are released from it by means of pressure medium beams the deposits are collected in the lower part of the filter housing and possibly with the aid of suitable auxiliary parts are removed from the housing with the aid of the amuck pressure medium.

Dupl. kl. 12 d: 16/02; 12 d: 27 For genomfOraude av sattet enligt uppfinningen auvandes lampligen en anordning stun bestar av ett skivfilter s‘om Sr forsett med horisontella, pa en vertikal ihalag axel anbragta filterskivor, vilka aro avsedda att roteras for att afvlagsna avsattningar fran skivoma, vilken enligt uppfinningen ,utmarkes av att i filterhusets Ovre del are anordnade stationara anunstycken Tar insprutning av tryckluft, spolvatska eller liknande i riktning nedat i det ringformiga ruanmet mellan filterhusets vagg och filterskivorna i och for losgorande av de avsattningar sem traffat filterhusets vagg. Dupl. at 12 d: 16/02; 12 d: 27 In order to carry out the set according to the invention, a device is preferably used which consists of a disc filter which is provided with horizontal filter discs arranged on a vertical shaft, which are intended to be rotated in order to remove deposits from the discs, which according to the invention , is marked by the fact that stationary ads arranged in the upper part of the filter housing take injection of compressed air, flushing fluid or the like in the downward direction in the annular space between the filter housing cradle and the filter discs in order to loosen the deposits that hit the filter housing cradle.

Vid ett utnyttjande av upplinningen steriliserais filterelementen och Ovriga I huset befintliga &Jar fore borjau av filtreringen medelst ett lampligt medium, t. ex. hett vat-ten. When utilizing the winding, the filter elements and other existing in-house filters are sterilized before the filtration by means of a suitable medium, e.g. hot water.

Uppfinningen innebar emellertid ytterligare mojligheter. Sâ kunna exempelvis de filtrerade paitiklarna tvattas fore utkastningen, dl de aro avsedda att tillvaratagas alter filtreringen. -Mare dr det i •manga fall lampligt att kunna torka de filtrerade partiklarna alter tvattningen, utan att huset behover Oppnas. Filtret enligt uppfinningen utgor dIr- fOr en kombinerad filtrerings- och torkanordruing i samana apparat. Torkningen utfares laanpligen i vakuum. However, the invention provided additional possibilities. Thus, for example, the filtered particles can be washed before ejection, since they are intended to be recovered or filtered. -But in many cases it is convenient to be able to dry the filtered particles or the washing, without the house having to be opened. The filter according to the invention therefore constitutes a combined filtration and drying device in the same apparatus. The drying is carried out in a vacuum.

Allteftersom det ror sig elm fuktiga eller oan torkade partiklar kunna .deras avlagsnande .alter utkastningen underlattas medelst vatska eller tryckhaft. As it moves in the case of moist or undried particles, their removal or alteration can be facilitated by means of liquid or pressure adhesives.

Ovriga for uppfinningen utmarkande detaljer och fordelar forklaras nanmare i foljande beskrivning av en a. bifogade ritning visafd utforingsform av anordning for utforande av sattet enligt uppfinningen. Other details and advantages of the invention will be explained in more detail in the following description of an accompanying drawing, shown in an embodiment of a device for carrying out the set according to the invention.

Fig. 1 ar en schematisk axialsektion av anordningen for genomforande av sattet enligt uppfinningen, fig. 2 al- en detaljbild av ett fast munstycke vid anordningen i fig. 1, fig. 2— — 3 visar ett detaljutforande av anordnin.gen i fig. 1 med roterande munstyeken. Fig. 1 is a schematic axial section of the device for carrying out the set according to the invention, Fig. 2 is a detail view of a fixed nozzle at the device in Fig. 1, Figs. 2-3 show a detailed embodiment of the device in Figs. 1 with rotating nozzle.

Den. pa ritningen, schematiskt visade utforingsformen bestar av ett bus 1, sum avsmalnar koniskt vid sin nedre Linde eller pa annat satt till ett utlopp 2. Detta är liimpligen anordnat sidofarskjutet i forhallande till husets centrumaxel. Upptill är huset 1 slutet medelst ett lock 18, som uppbar ett lager 3 for en axel 4. Axelns andra lager 5 dr inbyggt i husets 1 lutande botten, varvid detta lager ãr avtatat medelst en packbox, tatningsring, 0-ring eller liknande. Nedanfor locket 18 är axeln 4 ihalig och forsedd med hal eller slitsar 6. Pa axeln aro anordnade filterelement 7, vilka i den visade utfaringsformen best& av plana, runda skivor, men givetvis kunna vara utforda pa annat lampligt satt. Mellon vane par narliggande skivor 7 aro inlagda tatningsringar 8, vilka samtidigt tjana som nadvandiga distanselement mellan skivorna. En spannanardning 9 hailer so:Inman de utbytbara filterelementen 7 och tatningsringarna 8. Vid axelns 4 ovre Linde Er en motor 10 eller liknande drivanordning fast. The. in the drawing, the diagrammatically shown embodiment consists of a bushing 1, which tapers conically at its lower linde or in another way to an outlet 2. This is preferably arranged laterally offset in relation to the center axis of the housing. At the top, the housing 1 is closed by means of a lid 18, which carried a bearing 3 for a shaft 4. The second bearing 5 of the shaft 5 is built into the inclined bottom of the housing 1, this bearing being removed by means of a stuffing box, sealing ring, O-ring or the like. Below the cover 18, the shaft 4 is hollow and provided with slides or slots 6. Filter elements 7 are arranged on the shaft, which in the embodiment shown consist of flat, round discs, but can of course be challenged in other suitable ways. Between pairs of adjacent discs 7 there are inserted sealing rings 8, which at the same time serve as present spacer elements between the discs. A clamping device 9 is mounted as follows: Attach the replaceable filter elements 7 and the sealing rings 8. At the upper Linde of the shaft 4 a motor 10 or similar drive device is fixed.

Den for filtrering avsedda vatskan infores genom ett inlopp 11 till huset 1 och omgiver de dari anardnade filterskivorna 7, dd huset an fyllt ailed vatska. Filtratet genoxntranger filterskivornas filterskikt °oh intranger vid filtreringen till skivornas innerrum. Darifran 'inner vatskan genotn. slitsarna 6 i den dhaliga &len av axeln 4, som med sin fria Linde mynnar I ett utlopp 12. Filtratet bortsuges genom detta utlopp. Pa ytterytan av de stillastaende eller endast langsamt roterande plattorna 7 samlas darvid de olosta partiklarna fran den fittrerade vatskan och bilda en kaka 13. Da denna uppnatt en. viss tjocklek, sa att endast en mindre anangd eller Over huvud taget joke nagot filtrat ails kan tranga igenom denna kaka eller belaggning, aystanges tillflodet och axeln 4 bringas i hastig rotation, sd att kakan 13 darigenom utkastas frail skivorna 7 genom centrifugalkraften. Omkopplingen av axeln till hastig rotation. kan utforas ananuellt eller automatiskt. I sistninmda fall kan exempelvis denna omkoppling utlosas medelst en av det I utloppet 12 annu svagt flytande filtratet paverkad stromstallare eller liknande. De filtrerade partiklarna glida nedfor husets 1 innervagg pa grund av sin egenvikt och na frarn till husets nedre avsmalnade del. Den i vanliga fall stangda oppningen 14 oppnas i barjan av centrifugeringsforloppet, antingen far hand eller automatiskt, I beroende av det Oka-de varvtalet for utrensning av de fran-filtrerade partiklarna. Denna utrensning kan underlattas medelst en matarskruv, en vatska, en tryckga.s eller liknande. Vatskan eller tryckgasen spolar filterbelaggningens partiklar nedat och rycka dean med sig ut ur huset. Sa vitt det är erforderligt kunna iven anedroterande skrapplatar eller andra lampliga anordningar stryka utmed husets 1 innervagg for att hindra avsattning av partiklar. F8r sadana belaggningar, vilkas partik- larbenagenhet att klumpa ihop sig och salunda slungas ut i form av stone eller mindre stycken, kunna vid husets 1 under-del vara anordnade medroterande slagstift for att hindra tilltappning av utloppsoppningen 14. De sonderdela darvid eventuellt i sonarbete med. a huset fast anbragta stift, de utcentrifugerade klumparna. The liquid intended for filtration is introduced through an inlet 11 to the housing 1 and surrounds the filter discs 7 arranged therein, when the housing is filled with liquid. The filtrate penetrates the filter layer of the filter discs and penetrates during filtration to the inner space of the discs. Darifran 'inner vatskan genotn. the slits 6 in the dhaliga & len of the shaft 4, which with its free Linde opens into an outlet 12. The filtrate is sucked out through this outlet. On the outer surface of the stationary or only slowly rotating plates 7, the unresolved particles from the filtered liquid then collect and form a cake 13. When this has reached one. certain thickness, so that only a slightly attached or at all joke somewhat filtered ails can penetrate this cake or coating, aystanges the inflow and the shaft 4 is brought into rapid rotation, so that the cake 13 is thereby ejected frail the slices 7 by the centrifugal force. Switching the shaft to rapid rotation. can be performed anonymously or automatically. In the latter case, for example, this switching can be triggered by means of a switch or the like actuated in the outlet 12 still weakly liquid filtrate. The filtered particles slide down the inner wall of the housing 1 due to their dead weight and reach from there to the lower tapered part of the housing. The normally closed opening 14 is opened at the beginning of the centrifugation process, either manually or automatically, depending on the increased speed for cleaning the pre-filtered particles. This cleaning can be facilitated by means of a feed screw, a liquid, a pressure gauge or the like. The liquid or pressurized gas flushes the filter coating particles downwards and pulls the dean out of the housing. As far as it is necessary, even anti-rotating scraper plates or other suitable devices can be ironed along the inner cradle of the housing 1 in order to prevent the deposition of particles. For such coatings, the particle tendency of which to clump together and thus be thrown out in the form of stone or smaller pieces, co-rotating percussion pins can be arranged at the lower part of the housing 1 in order to prevent tapping of the outlet opening 14. The probe parts . in the house fixed pins, the spun out the lumps.

For att, sarskilt vid Idibbiga filteravsattningar, forebygga -vidhaftning av dessa pa. ,husvaggen an 'det lampligt att anordna munstycken, vilka Are riktade nedat mat husets botten och aro avsedda att styra stralar am vatska, gas, tryckluft, anga 'eller liknande rummet mellan husvaggen och skivornas kanter. Dylika munstyoken kunna vara stationara, sasom visas i :fig. 2, och ett flertal munstycken 19 aro da fordelade utmed husets omkrets, varvid de aro anbragta i locket 18 i narheten av dess kant eller i husets vagg 1 i narheten av locket, sasom visas i fig. 1. Dessa stationara munstycken 19 rikta kraftiga shitlar av -spolmedel nedat for asta:dkommande ay en rengaring ay husets insida samtidigt rsom de transportera filteravsattningarna till avloppet 14. Vidare anedverkar spolmedlet till att fora avsattningarna ut ur huset I. In order to, especially in the case of Idibbiga filter deposits, prevent -adhesion of these pa. , the caravan is suitable for arranging nozzles, which are directed downwards to the bottom of the housing and are intended to control jets of liquid, gas, compressed air, steam or similar space between the caravan and the edges of the discs. Such nozzles can be stationary, as shown in: fig. 2, and a plurality of nozzles 19 are then distributed along the circumference of the housing, being located in the lid 18 near its edge or in the cradle 1 of the housing near the lid, as shown in Fig. 1. These stationary nozzles 19 direct heavy sheets. of the flushing agent down for the next step: a cleaning on the inside of the housing at the same time as they transport the filter deposits to the drain 14. Furthermore, the rinsing agent acts to lead the deposits out of the housing I.

Om manstycken.a darentot aro roterande tillsammans med skivorna, AT det med ,endast tva munstyoken 20, sasom visas I fig. 3, eller endast ett munstycke, for att uppna samma resultat som med stationara munstycken. Munstyeket eller munstyckena 20 urppbaras darvid av ett ringformigt ror 21 som dr fdst pa den roterande, av motorn 10 drivna axeln 4. I axeln finns en kanal 22 for tillforsel ay spolanedel via ror 23 till raret 21 och munstyckena. Spolmedlet inslappes via en ventil 21 och en ledning 25 till kanalen 22. If the nozzles are rotating together with the discs, AT it with, only two nozzles 20, as shown in Fig. 3, or only one nozzle, to achieve the same result as with stationary nozzles. The nozzle or nozzles 20 are then opened by an annular tube 21 which is driven first on the rotating shaft 4 driven by the motor 10. In the shaft there is a channel 22 for supply to the coil part via tubes 23 to the groove 21 and the nozzles. The flushing agent is introduced via a valve 21 and a line 25 to the channel 22.

Om man. ■daremot onskar erhalla torra, franfiltrerade partiklar Ar det lampligt att utfora tvattningen farst. I offnedelbar anslutning till donna foljer en. torkning, som kan utforas pO. olika salt. Salunda kan man exempelvis i huset 1 vidtaga anordningar for uppvarmning ay husets inre och/eller filterelementen 7. Dot Or amen mojligt att Mora heta gaser eller luft utifra.n. Torkningen kan fOrutom medelst en hettaftstrom med samma resultat utforas medelst straining, induklion, vakuum eller flagon kombination ay dessa salt. Pa dessa satt anajliggor filtreringsanordningen enligt uppfinningen en kontinuerlig upparbetning ay en uppslamning av exempelvis fargamnen, farmaceutiska preparat, salter och liknande till torrsubstans utan att nagot arbete behover utforas for hand. Sam hjalpimedel Mr Manning av de franfiltrerade partiklarna anvandes i dylika fall tryck- °— —3 loft eller tryckgas. Under torkningen kan vakuum anslutas till utloppet 12, varvid lamp- liga virmeelement aro anordnade for astad- hanarnande- av torkvarme. Het- eller eirkulationsluft kan Eliforas respektive avledas ge- nom stutsarna 15 och 16 pft huset 1. Be d.ro emellertid ej ovillkorligen nodvandiga eftersom man kan astadkomma en cirkulation genom den ihaliga delen av axeln 4. If. ■ on the other hand, you want to obtain dry, filtered particles. Is it appropriate to carry out the washing first? In a detachable connection to the donna, one follows. drying, which can be performed pO. different salt. Thus, for example, in the house 1 it is possible to take devices for heating the interior of the house and / or the filter elements 7. Dot Or amen possible to Mora hot gases or air from outside.n. The drying can, in addition to by means of a hot water stream with the same result, be carried out by means of straining, induction, vacuum or flake combination in these salts. In this way, the filtration device according to the invention applies a continuous work-up in a slurry of, for example, the dyes, pharmaceutical preparations, salts and the like to dry matter without any work having to be carried out by hand. Assistive products Mr Manning of the pre-filtered particles was used in such cases compressed air or compressed gas. During drying, a vacuum can be connected to the outlet 12, whereby suitable wire elements are arranged to provide drying heat. Hot or circulating air can be dissipated or diverted through the nozzles 15 and 16 pft of the housing 1. However, do not necessarily require it as a circulation can be achieved through the hollow part of the shaft 4.

Vid vertikal +axel 4 kunna filterelementen 7 vara sa 'utforda, aft de endast kunna genamtrangas viii sin oversida. Ett dylikt filtermedel lampar sig sarskilt val i kombination med s. k. extra filterhjalpmedel. De medfora den ,fordelen, att partiklarna lattare fastna pa filterytan. De karma ,darfor ej lossna sa latt pa grand av skakningar. Viii dylika filter vilka framforallt dro avsedda fOr Marfiltrering av vatskor, anbringas fore filtreringens bOrjan ett extra filterhjalpmedel i form av kiselgur, asbestfiber eller liknande amnen. Dessa amnen avldgsnas Ater frAn filterytorna eller slutad filtrering. Fore nasta -filtrering ,anbringas ,ett dylikt extra filterhjalpmedel pa nytt. Det extra filterhjalpmedlet kan latt avlagsnas fran filterytorna genom rotation, ,sa. att apparaten Tor avlagsnande av delta extra filterhjalpmedel ej behover appnas sasom fallet varit tidigare. At vertical + axis 4 the filter elements 7 can be so challenging, since they can only be penetrated viii their upper side. Such a filter aid is particularly suitable in combination with so-called extra filter aids. They have the advantage that the particles stick more easily to the filter surface. The karma, therefore, does not come off so easily on the grand of shaking. For such filters which are primarily intended for Marfiltration of water shoes, an additional filter aid in the form of diatomaceous earth, asbestos fiber or similar substances is applied at the beginning of the filtration. These substances are again removed from the filter surfaces or finished filtration. For immediate filtering, apply such an additional filter aid again. The extra filter aid can be easily removed from the filter surfaces by rotation, said. that the device Tor removal of delta extra filter aids does not need appnas as has been the case before.

De extra filterhjalpmedlen, vilka huvudsakligen anvandas inam .socker- °eh dryekesindustrierna men a_ven inom farmacin, exernpelvis viii iframstallning av penicillin, Aterspolas I allmanhet amedelbart ,efter utkastningen modelst vatten genom den ihatiga ax-em n eftersom man 'dar ,ej tillvaratager de franfiltrerade partiklarna utan ssjalva filtratet. Denna returspolning är i och for sig kand vid stillastfiende filter men ,har emellertid vid anordningen .enligt uppfirtningen speciella tfordelar i .samband med centrifugalrensningen. Filtreringen utfores darvid sa att filterhuset forst fylles med vatten under tillsats av extra filterhjalprnedel (kiselgur, tract:dal och asbest och liknande). Vattnet bortsuges darefter lAlis ett 5-10 nun tjoekt skikt av-satt ,sig pa filterplattorna. Darefter tillfores den for filtrering avsedda saften tills nam_nda skikt blir ogenomsldppligt eller svargenemslappligt. Mr detta tillstand ,uppnatts uteentrifugeras filterskiktet under samtidig returspolning medelst vatten. I fall att man anvander filterdukar, utfores en nedan beskriven tvattning av filterdukarna. Det bor aven framhallas, att efter uppbyggnaden av filterskiktet, ,detta kan genomspolas med hetvatten, sá att den huset laninande sailer" steriliseras. Efter slutet av en arbetseykel fortsattes Ifiltreringen utan att behallaren Oppnas, och nastfOljande filtreringsforlopp, paborjas. Filtratets avlopp kan har liksom viii de ovriga beskrivna forfaringssatten, om sa 5hskas, paverkas medelst autoonatiska regleringsanordningar pa; sadant •satt, att filtre ringen, torkningen, utcentrifugeringen, tomningen osv. utfores utan nagra handgrepp. The additional filter aids, which are mainly used in the sugar and dry industries but also in pharmacy, for example viii production of penicillin, are generally immediately rinsed, after ejection modeled water through the hot shaft because they are not recovered. the particles without the filtrate itself. This backwashing is per se known in the case of antifreeze filters, but, however, has special advantages in the device according to the invention in connection with the centrifugal cleaning. The filtration is carried out so that the filter housing is first filled with water with the addition of extra filter auxiliary parts (diatomaceous earth, tract: dal and asbestos and the like). The water is then sucked off, leaving a 5-10 now thick layer deposited on the filter plates. The juice intended for filtration is then added until the said layer becomes impermeable or permeable. In this condition, the filter layer is centrifuged out during simultaneous backwashing with water. In case of using filter cloths, a washing of the filter cloths described below is performed. It should also be noted that after the build-up of the filter layer, this can be flushed with hot water, so that the house's lininande sailer "is sterilized. After the end of a working cycle, the filtration was continued without the container being opened, and subsequent filtration processes are drilled. viii the other described procedures, if required, are influenced by means of autonomous control devices in such a way that the filtering, drying, spinning, emptying, etc. are carried out without any action.

Om man i den roterande axeln anordnar en utifran manovrerbar klaff (ej visad), genom vilken en del av filterelementen kunna urkopplas, erhalles den fordeien, att apparaten, fore filtreringens slut kan tommas me-deist tryekluft till nivan for de urkopp lade filterelementen — vanligen de understa varvid -samtidigt filtreringen av den i behallaren befintliga vatskan utfores.. FOre tomningen kvarsta salunda i behallaren endast nagra ifa liter ofiltrera:d vatska, som Ater kan tillforas inloppskarlet. Bela behallarens ovriga innehall kan pA detta salt fardigfiltre7 ras. If a rotatable flap (not shown) is arranged in the rotating shaft, through which a part of the filter elements can be disconnected, the advantage is obtained that the apparatus, before the end of the filtration, can be emptied with compressed air to the level of the disconnected filter elements - usually the bottom ones, at the same time as the filtration of the liquid present in the container is carried out. Before emptying, only a few liters of unfiltered liquid remain in the container, which can again be fed to the inlet vessel. The other contents of the container can be filtered on this salt.

Axelns rotationsriktning kan vid centrifu-_ geringen Andras periodiskt, vatvid vaxlingen av rotationsriktningen eventuellt kan stegras till en vibrerande rotation. En sadan snSjlighet utnyttjas foretradesvis i satlana fall, da man anvander filterdukar. Om filterdukarna efter en eller flera ehargeringar tappts till, utnyttjas filtreringsapparaten 'saratidigt som tsvattmaskin genom att rotationsriktningen for den roterande axeln Andras periodiskt, liksom fallet dr viii en tvattmaskin, eventuellt under samti dig andring av genomstriimningsriktnringen far tvattvdtskan. Detta meclfor en nagot snabbare och intensivare urtvattning am filterdukarna an viii konstant rotationsriktming. Ett avlopp 17 Or det mojligt att tom-ma all vatska ur huset 1 dd. della utlopp är ,anordnat yid husets lagsta punkt. Genom ,stromning av vatskan fran arvloppet 17 till inlappet 11 och samtidig inkoppling av vakuum vid utloppet 12, kan amen den sista resten av vatskan ,filtreras, avertsa. genom tillforsel av tryckluft till behallaren 1 under samtidig eirkrulation. The direction of rotation of the shaft can be centrifuged during the centrifugation of others, in which case the change of the direction of rotation can possibly be increased to a vibrating rotation. Such a visor is preferably used in satlana cases, when filter cloths are used. If the filter cloths are clogged after one or more harrowings, the filtration apparatus is used simultaneously as a washing machine by periodically changing the direction of rotation of the rotating shaft of others, as in the case of a washing machine, possibly while changing the flow direction. This means a somewhat faster and more intensive dewatering of the filter cloths than a constant direction of rotation. A drain 17 Is it possible to empty all the water out of the house 1 dd. della outlet is, arranged yid the house's lowest point. By flowing the liquid from the inheritance channel 17 to the inlet 11 and simultaneous connection of vacuum at the outlet 12, the last remnant of the liquid can be filtered, averted. by supplying compressed air to the container 1 while simultaneously circulating.

Claims (8)

Patentansprfik:Patent claim: 1. salt att rengOra ett skivfilter som Or ,forsett med horisonrtella, pa en vertikal ihalig axel anbragta filterskivor, vilka Arc avsedda att roteras for att .avlagsna avsattningar Iran skivorna, eventuellt i samverkan med en rensp.olning ,enligt anortstrarnsprincipen, kannetecknat darav, att de Iran filterskivorna genont centrifugalkraft i riktning mot filterhusets vagg utslungade avsattningarna hindras att traffa husvaggen eller att de losgoras frau densamma medelst tryckmediumstralar rsom frau ,filterhusets ovre del Arc riktade nedat i det ringformiga rummet mellan filterskivornas kanter och husrvaggen, och att avsattningarna uppsamlas I filterhusets undre del och eventuellt under onedverkan ary lampliga hjalpmedel avlagsnas ur huset med hjalp av namnda tryekmedium.1. salt to clean a disc filter which Or, provided with horizontal, filter discs arranged on a vertical hollow shaft, which arc are intended to be rotated to remove deposits Iran the discs, possibly in conjunction with a cleaning, according to the anortic principle, can be drawn therefrom, that the Iran filter discs by centrifugal force in the direction of the filter housing cradle ejected are prevented from hitting the housing cradle or that they are detached from it by means of pressure medium jets such as frau, the upper part Arc of the filter housing directed downwards in the annular space between the filter disc edges and the filter housing lower part and possibly during the ary suitable ary suitable aids are removed from the house with the help of said printing medium. 2. Sift ealigt patentanspraket 1, kanneteck- 4— — aat ddray, att avsdttningarna, a de fortfarande befinna sig p. filterskivorna, torkas delvis eller hell.2. According to patent claim 1, it may be noted that the deposits, if they are still on the filter discs, are partially or completely dried. 3. Mit enligt patentanspraket 2, kannetecknat ddray, att torkningen Wares i vakuum. . 4. Sfitt enligt patentanspraket 2, kdnnetecknat darav, att husets innerrtim och/eller fitterskivorna uppyarmas medelst inuti huset anbragta vdrmeelement for torkning av avsattningarna.3. According to patent claim 2, ddray, the drying Wares is in a vacuum. . 4. A blank according to claim 2, characterized in that the inner tube of the housing and / or the fitter discs are heated by means of heating elements arranged inside the housing for drying the deposits. 4. Satt enligt patentanspraket 2', kannetecknat ddray, att husets innerruan uppvarmes medelst en gas &Isom varanluft, som tillfores utifran.4. According to patent claim 2 ', ddray is characterized in that the inner window of the housing is heated by means of a gas & Isom product air, which is supplied from the outside. 5. Anordning -for utforande av det i patentanspraket 1 angivna ,sattet, bestaende av ett skivfilter som är forsett med horisontella, pd en vertikal ihâlig axel anbragta filterskivor, vilka aro avsedda att roteras for att avlagsna avsattningar fran 'skivorna, kanneteckna.d .darav, att i filterhusets (1) ovre del aro anordnade stationdra munstycken (19, fig. 2) f5r inspratning av tryekluft, spolvdtska eller liknande i riktning neddt i det ring formiga rummet anellan filterhusets vagg och filterskivorna (7) i och for losgorande av de avsattningar som trdffat filterhusets vagg.5. Device - for carrying out the set stated in patent claim 1, consisting of a disc filter which is provided with horizontal filter discs arranged on a vertical hollow shaft, which are intended to be rotated in order to remove deposits from the discs, can be drawn. in that stationary nozzles (19, Fig. 2) arranged in the upper part of the filter housing (1) for injecting compressed air, flushing liquid or the like in the direction down into the annular space between the cradle of the filter housing and the filter discs (7) in order to loosen the deposits that hit the cradle of the filter housing. 6. Modifikation av anordningen enligt patentanspritk 6, kdnnetecknad ddrav, att munstyckena 1 stallet for att vara stationara dro anordnade att rotera med filterskivorna (fig. 3).Modification of the device according to patent claim 6, characterized in that the nozzles in the stable to be stationary are arranged to rotate with the filter discs (Fig. 3). 7. Anordning enligt patentanspthket 6 eller 7, kannetecknad ddrav, att medroterande slagstift dro anordnade i husets (1) nedre del for att eventuellt i samverkan med vid huset fasta stilt sonderdela de mot husydggen uts1ungade avsattningarna. Anfbrda publikationer: Patentskrif ter fran Sverige 134019; Frankrike 580041, 9121143; USA 1 266 133, 1 670 319, 2 651 41Device according to patent 6 or 7, characterized in that co-rotating percussion pins are arranged in the lower part of the housing (1) in order to, if necessary in conjunction with the housing fixedly fixed to the housing, divide the deposits ejected against the housing edge. Recommended publications: Patent patent ter from Sweden 134019; France 580041, 9121143; USA 1 266 133, 1 670 319, 2 651 41 8.8.
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