DK174477B1

DK174477B1 - Apparatus for sterilizing and/or heat treatment and/or auto-claving of products comprises container with inlet-filling unit and outlet-emptying unit together with devices for pressure, steam and/or heat supply to container interior

Info

Publication number: DK174477B1
Application number: DK200000067A
Authority: DK
Inventors: Christian Verner Christiansen
Original assignee: Atlas Stord Denmark As
Priority date: 2000-01-17
Filing date: 2000-01-17
Publication date: 2003-04-14
Also published as: DK200000067A

Abstract

The apparatus for sterilizing and/or heat treatment and/or auto-claving of produces comprises a container (6) with an inlet-filling unit and an outlet-emptying unit, together with devices for pressure, steam and/or heat supply to the container interior. Through the whole container fits a rotatable shaft (7) suspended in at least two bearings, to which at least one winding/vane/blade is attached. The shaft at least at one end is terminated by a pin. The pin outermost end part is suspended in the first bearing and the pin end surface together with the whole or part first bearing are surrounded by a first device located against the container cap.

Description

1 DK 174477 B11 DK 174477 B1

Opfindelsen angår et apparatur til sterilisering og/eller varmebehandling og/eller 5 autoklavering af produkter, omfattende en beholder med en ind-løbs/påfyldningsenhed og en udløbs/aftømningsenhed samt midler for tryk-, damp- og/eller varmepåføring til beholderens indre, hvilken beholder omfatter en gennem hele beholderen gennemgående og roterbar aksel ophængt i mindst to lejer, og til hvilken aksel mindst én vinding/skovl/blad er tilhæftet, og hvilken ak-10 sel i mindst den ene ende afsluttes i en akseltap.The invention relates to an apparatus for sterilizing and / or heat treating and / or autoclaving products, comprising a container having an inlet / filling unit and an outlet / drain unit, and means for pressure, steam and / or heat application to the interior of the container, which container comprises an all-through and rotatable shaft suspended throughout the container in at least two bearings, to which shaft at least one winding / vane / blade is attached and which shaft terminates at least one end in a shaft pin.

I patentskriftet DE A1 3726751 beskrives et hus til indkapsling af et leje. Lejet benyttes til nemt at ophænge en roterende aksel, der enten kan hænges horisontalt eller vertikalt. En af ulemperne med denne konstruktion er at den ikke er 15 velegnet til sterilt arbejde da akslen er i direkte kontakt med det væskefyldte rum og giver derfor nemmere anledning til kontaminering. En yderligere ulempe er at akseltappen er tilvejebragt ved at nedfræse akslen hvilket er en dyr og besværlig proces.The patent specification DE A1 3726751 describes a housing for enclosing a bearing. The bearing is used to easily hang a rotating shaft that can be hung either horizontally or vertically. One of the disadvantages of this construction is that it is not suitable for sterile work as the shaft is in direct contact with the fluid-filled compartment and therefore gives rise to easier contamination. A further disadvantage is that the shaft pin is provided by milling the shaft which is an expensive and cumbersome process.

20 I forbindelse med sterilisering af kød, ben og lignende produkter opvarmes disse typisk i en trykbeholder under påvirkning af damp. Disse kendte trykbeholdere er fortrinsvis vandretliggende beholdere med en gennemgående vandret aksel, der omfatter mekaniske omrøringsorganer i form af skovle, som er fæstet til beholderens gennemgående aksel. Den gennemgående aksel er ophængt i hver ende i 25 lejer, og hvor materialet fødes ind i den ene ende af beholderen, og hvor det færdige og bearbejdede materiale så aftappes i den anden ende. Beholderen kan således placeres i, hvad der betegnes som en "uren” del og en "ren" del, hvor sidstnævnte er den del, hvor materialet er blevet steriliseret og bliver aftappet.In connection with sterilization of meat, bones and similar products, these are typically heated in a pressure vessel under the influence of steam. These known pressure vessels are preferably horizontal containers with a continuous horizontal shaft comprising mechanical stirring means in the form of blades attached to the through shaft of the container. The through shaft is suspended at each end in 25 bearings, where the material is fed into one end of the container and the finished and processed material is then drained at the other end. Thus, the container may be placed in what is termed a "impure" portion and a "clean" portion, the latter being the portion where the material has been sterilized and bottled.

Problemet ved disse apparaturer er, at pakdåsen, og her tænkes fortrinsvis på 30 2 DK 174477 B1 pakdåsen i den ’’rene” ende, sjældent er tæt, så der vil ske en væskeudsivning, som kan give anledning til, at det steriliserede produkt kontamineres, og det færdige produkt vil således være et ikke-steriliseret produkt, til trods for, at det forventes at være sterilt.The problem with these appliances is that the packing box, and here it is preferably thought of the packing box at the '' clean '' end, is rarely sealed so that a liquid leakage will occur which may cause the sterilized product to be contaminated. , and thus the finished product will be a non-sterilized product, despite being expected to be sterile.

55

Det er således formålet med opfindelsen at tilvejebringe et apparatur, som ikke har den kendte tekniks ulemper, og hvor der opnås en på kendt vis kontinuerlig opblanding og sterilisering af produktet, men hvor det sikres, at det færdige produkt er steriliseret, idet lejet i den såkaldte "rene" ende formes på en sådan 10 måde, at enhver væskeudsivning og enhver kontaminering af det i beholderen liggende produkt umuliggøres.It is thus the object of the invention to provide an apparatus which does not have the drawbacks of the prior art and which achieves a known continuous mixing and sterilization of the product, but which ensures that the finished product is sterilized, bearing in it so-called "clean" ends are formed in such a way as to render any liquid leakage and any contamination of the product contained in the container impossible.

Dette opnås ved et apparatur af den i indledningen angivne art, og hvor tillige akseltappens yderste endedel er ophængt i det første leje, hvilken akseltaps 15 endeflade samt helt eller delvist førstelejet omgives af et mod beholderens kappe anlagt flange forbundet væsketæt ved eksempelvis mindst én pakning til kappens ydre flade, at akseltappens endeflade er beliggende i det væsentlige lateralt for beholderens kappe samt at der mellem akseltappens endeflade og flangens indre flade er et olie/fedtfyldt hulrum.This is achieved by an apparatus of the kind specified in the preamble, and wherein the outer end portion of the shaft pin is also suspended in the first bearing, the end surface of the shaft pin 15 and all or part of the first bearing is surrounded by a liquid seal which is arranged against the container sheath, for example at least one package. the outer surface of the shaft, that the end surface of the shaft pin is located substantially lateral to the sheath of the container and that there is an oil / grease-filled cavity between the end surface of the shaft pin and the inner surface of the shaft.

2020

Ved at forme lejet som angivet opnås der således følgende. Produktet føres ind i den ende, der ligger modsat den angivne lejekonstruktion i den såkaldte "urene" ende, og føres via rotoren frem i beholderen under temperatur-, damp- og trykpåvirkning. Der er således typisk tale om en form for autoklavering af produktet, 25 hvor procesparametrene typisk ligger på omkring 133°C, 2 bars overtryk og under tilledning af vanddampe.Thus, by shaping the bearing as follows, the following is achieved. The product is fed into the end opposite the bearing structure at the so-called "unclean" end, and is fed through the rotor into the container under temperature, steam and pressure. Thus, it is typically a form of autoclaving of the product, the process parameters typically being at about 133 ° C, 2 bar overpressure and under the vapors.

Når produktet ledes hen i den anden ende, fjernes det fra beholderen via en aftapningsenhed. Som følge af, at lejet, som akslen er ophængt i via akseltappen, 30 er fuldstændigt omsluttet, fortrinsvis af en flange, sikres, at der ikke kan ske nogen udsivning af endnu ikke færdigsteriliseret materiale, samtidig med at selve 3 DK 174477 B1 lejet opnår en optimal understøtning og bevægelsesfrihed, idet lejet er formet på en sådan måde, at den indre del glider mod den ydre del af lejedelene, og hvor den indre del er hæftet til akseltappen, eksempelvis ved en skrue, som hæfter den ubevægelig til akseltappen, således at den indre lejedel er ubevægelig i for-5 hold til denne. Den ydre del af lejet, som fortrinsvis formes som en cylindrisk bøsning, glider mod den indre del af lejet og formes fortrinsvis i et keramisk materiale, hvilken ydre, ringformede bøsning fortrinsvis limes til det første middel.When the product is passed to the other end, it is removed from the container via a drain unit. Due to the fact that the bearing in which the shaft is suspended via the shaft pin 30 is completely enclosed, preferably by a flange, it is ensured that no leakage of not yet finished sterilized material can occur, while at the same time obtaining the bearing itself 3 an optimum support and freedom of movement, the bearing being shaped in such a way that the inner part slides against the outer part of the bearing parts, and wherein the inner part is attached to the shaft pin, for example by a screw which attaches it to the shaft pin, thus that the inner bearing part is immobile in relation to this. The outer part of the bearing, which is preferably formed as a cylindrical bush, slides against the inner part of the bearing and is preferably formed in a ceramic material, which outer, annular bush is preferably glued to the first means.

Det første middel er formet som en flange, der er forbundet til kappens ydre flade, fortrinsvis ved hjælp af skruer, og hvor der mellem flangens indre anlægs-10 flade mod kappen og denne er anlagt pakninger, som sikrer en fuldstændig tæt tilslutning af selve flangen, således at udsivning og dermed kontaminering med overvejende sandsynlighed elimineres. Yderligere sikres den bedste understøtning for akslen, således at risikoen for afbøjninger og dermed utætheder reduceres.The first means is shaped as a flange which is connected to the outer surface of the sheath, preferably by means of screws, and where seals are provided between the inner contact surface of the flange and the latter, which ensures a complete close connection of the flange itself. , so that leakage and thus contamination are predominantly eliminated. Furthermore, the best support for the shaft is ensured so that the risk of deflections and thus leaks is reduced.

1515

Ved at tilvejebringe et apparatur ifølge opfindelsen, og som yderligere angivet i krav 2, opnås for det første en særdeles hensigtsmæssig udformning, således som det er beskrevet ovenfor, men også, at den aksiale bevægelse af akslen sikres, idet akslen under den termiske påvirkning naturligvis vil blive underlagt en 20 termisk udvidelse.By providing an apparatus according to the invention, and as further stated in claim 2, firstly, a very suitable design as described above is obtained, but also that the axial movement of the shaft is ensured, the shaft under the thermal influence of course. will be subject to a 20 thermal expansion.

Ved at tilvejebringe et apparatur ifølge opfindelsen, og som yderligere angivet i krav 3, opnås en hensigtsmæssig udformning for den roterende bevægelse af akslen.By providing an apparatus according to the invention, and as further stated in claim 3, an appropriate design is obtained for the rotary movement of the shaft.

2525

Ved at tilvejebringe et apparatur ifølge opfindelsen, og som yderligere angivet i krav 4, opnås, at bøsningen får en lang levetid og kan modtage stor slitage.By providing an apparatus according to the invention and as further stated in claim 4, it is achieved that the sleeve has a long life and can receive great wear.

Ved at tilvejebringe et apparatur ifølge opfindelsen, og som yderligere angivet i 30 krav 5, opnås, at en defekt akseltap hurtigt kan erstattes.By providing an apparatus according to the invention, and as further stated in claim 5, it is achieved that a defective shaft pin can be quickly replaced.

4 DK 174477 B14 DK 174477 B1

Ved at tilvejebringe et apparatur ifølge opfindelsen, og som yderligere angivet i krav 6 eller 7, opnås en god smøring mellem lejets bevægelige flader, således at sandsynligheden for, at sand og lignende materialer med stor abrasionsevne ikke ødelægger de glidende flader. Fortrinsvis anvendes der fedt, som er 5 accepteret inden for levnedsmiddelindustrien, idet der naturligvis fra dette olie/fedtdepot sker en tilflydning via lejets roterende flader over i substansen i beholderen.By providing an apparatus according to the invention, as further stated in claims 6 or 7, a good lubrication is obtained between the movable surfaces of the bed, so that the probability that sand and similar abrasive materials do not destroy the sliding surfaces. Preferably, grease which is accepted in the food industry is used, since naturally, from this oil / grease deposit, flow is effected via the rotating surfaces of the bed into the substance in the container.

Ved at tilvejebringe et apparatur ifølge opfindelsen, og som yderligere angivet i 10 krav 8, opnås, at også den ende, som svarer til den såkaldte "urene" ende, har en tæt pasning, således at der ej heller via denne del kan ske nogen kontaminering, idet en sådan mekanisk pakdåse netop kan anvendes i denne del, da det angivne leje i den "rene” ende tilsikrer, at en aksial bevægelse er mulig takket være det hulrum, der er, og hvor fedt- og oliesubstansen ligger i depot for smø-15 ring af lejet.By providing an apparatus according to the invention and as further stated in claim 8, it is achieved that also the end corresponding to the so-called "unclean" end has a tight fit, so that no part can be made via this part either. contamination, since such a mechanical sealing box can be used precisely in this part, since the specified bearing at the "clean" end ensures that an axial movement is possible thanks to the cavity that is and where the fat and oil substance is in storage for lubrication of the bearing.

Opfindelsen vil nu blive forklaret nærmere under henvisning til tegningen, hvor fig. 1 viser et snit på langs gennem en beholder ifølge opfindelsen, 20 fig. 2 viser et detailbillede af lejet i den i fig. 1 viste beholder, og fig. 3 viser et lejeophæng af akslen i en beholder ifølge opfindelsen.The invention will now be explained in more detail with reference to the drawing, in which fig. 1 is a longitudinal section through a container according to the invention; FIG. 2 shows a detail view of the bearing in the FIG. 1, and FIG. 3 shows a bearing suspension of the shaft in a container according to the invention.

25 Fig. 1 viser et apparatur 1 ifølge opfindelsen, omfattende en beholder 2, der i det væsentlige er cylindrisk og hul. Gennem beholderen 2 er monteret en roterbar aksel 6, hvorfra der udgår skovlbladevindinger 10 til fremføring og opblanding af den substans, som ledes ind i beholderen. Substansen er eksempelvis kødbenmel, fjer og affaldsprodukter fra slagtedyr m.v. Akslen ligger akseparallelt og i det 30 væsentlige sammenfaldende med beholderens centerakse. Beholderen er delt op i en såkaldt "ren" ende 24 og en "uren” ende 25, idet substansen ledes ind i 5 DK 174477 B1 den "urene” ende 25 gennem en indløbs/påfyldningsenhed 3. Ved akslens rotation sker der en opblanding samt en fremføring af substansen hen mod den ’’rene” ende 24, hvor materialet ledes ud gennem udløbs/aftømningsenheden 4. Apparaturet omfatter tillige midler 5 til etablering aftryk, indledning afdamp samt 5 til opnåelse af varme, idet substansen primært behandles ved procesparametre, 2 bars overtryk (et interval på næsten 100% vakuum til 5 bars overtryk) og en temperatur på 133°C (et interval på 30°C-160°C)f hvor materialet fortrinsvis befinder sig i beholderen for en optimal behandling, eksempelvis 20-60 min. Behandlingen kan således enten være en opvarmning og/eller en sterilise-10 ring/autoklavering.FIG. 1 shows an apparatus 1 according to the invention, comprising a container 2 which is substantially cylindrical and hollow. A rotatable shaft 6 is mounted through the container 2, from which the blade blades 10 are formed for feeding and mixing the substance which is fed into the container. The substance is for example meat bone meal, feathers and waste products from slaughter animals etc. The shaft lies axis parallel and substantially coincides with the center axis of the container. The container is divided into a so-called "clean" end 24 and an "unclean" end 25, the substance being passed into the "unclean" end 25 through an inlet / filling unit 3. At the rotation of the shaft, a mixing and a conveying of the substance towards the "clean" end 24, where the material is discharged through the outlet / discharge unit 4. The apparatus also comprises means 5 for establishing imprint, inlet steam and 5 for obtaining heat, the substance being treated primarily by process parameters, 2 bar pressure (a range of almost 100% vacuum to 5 bar pressure) and a temperature of 133 ° C (range 30 ° C-160 ° C) where the material is preferably in the container for optimal processing, e.g. 60 min. Thus, the treatment may be either a heating and / or a sterilization / autoclaving.

Akslen er ophængt i et første leje 8 og et andet leje 8a, idet det første leje er tilvejebragt i den "rene” ende, og det andet leje 8a er tilvejebragt i den "urene” ende. Akslen ender i den "rene" ende i en akseltap 7, som der vil blive gjort 15 nærmere rede for i detailtegningen med henvisning til fig. 2.The shaft is suspended in a first bearing 8 and a second bearing 8a, the first bearing being provided at the "clean" end and the second bearing 8a being provided at the "unclean" end. The shaft ends at the "clean" end of a shaft pin 7, which will be explained in more detail in the detailed drawing with reference to FIG. 2nd

Akseltappen 7 er ved hjælp af monteringsskruer aftageligt monteret til akslen 6, og akseltappens yderste endedel 12 er omsluttet af et leje, som er tildannet på følgende måde. Lejet omfatter en cylinderformet bøsning, en første bøsning 19, 20 der er hæftet til akseltappen på en sådan måde, at den første bøsning og akseltappen er ubevægelige i forhold til hinanden. Dette kan afstedkommes ved eksempelvis en fastskruning, idet den første bøsning i så tilfælde er en cylindrisk formet beholder, der er lukket i den ene cirkulære del, og hvorigennem via skruer 23 denne er hæftet ti! akseltappen 7 via dertil svarende gevindhuller i dennes 25 yderste endedel 12. Uden om den første bøsning er anlagt en anden bøsning 20, hvilken første og anden bøsning er roterbare og kongruente i forhold til hinanden, og hvor der mellem disses cylindriske berøringsflade er en grænseflade 21.The shaft pin 7 is removably mounted to the shaft 6 by means of mounting screws, and the outer end portion 12 of the shaft pin is enclosed by a bearing which is formed as follows. The bearing comprises a cylindrical bushing, a first bushing 19, 20 which is attached to the shaft pin in such a way that the first bushing and shaft pin are movable relative to each other. This can be accomplished by, for example, a screw-in, the first bushing being in that case a cylindrical shaped container which is closed in one circular part, and through which screws 23 it is attached ten! the shaft pin 7 via corresponding threaded holes in the outer end portion of the 25 thereof. Outside of the first bushing, a second bushing 20 is provided, which first and second bushings are rotatable and congruent with each other, and where there is an interface 21 between their cylindrical contact surface. .

Den anden bøsning 20 er som nævnt drejeligt monteret i forhold til den første bøsning og er hæftet til et første middel i form af en flange 13, og hvor den an-30 den bøsning eksempelvis kan være limet til flangen for ubevægelig montage af denne. Flangen eller det første middel er monteret væsketæt til kappen 11 ved 6 DK 174477 B1 hjælp af skruer, og hvor der efter kendte principper er monteret tætninger 15 mellem flange og kappe. Det bemærkes, at ved den beskrevne konstruktion af lejet undgås pakdåser.As mentioned, the second bush 20 is rotatably mounted relative to the first bush and is attached to a first means in the form of a flange 13, and where the other bush may be, for example, glued to the flange for motionless mounting thereof. The flange or first means is mounted liquid-tight to the sheath 11 by means of screws, and where according to known principles seals 15 between the flange and sheath are mounted. It is noted that in the described construction of the bearing, sealing boxes are avoided.

5 Mellem flangens 13 indre flade og den første bøsning 19 eller akseltappens endeflade er tilvejebragt et hulrum 17, i hvilket hulrum 17 fedt/olie pumpes ind via en ikke-vist oliepumpe. Via dette fedt/oliefyldte hulrum 17 vil der via den ringformede passage 18 mellem hulrummet og selve lejet ske en smøring mellem den første og den anden bøsnings grænseflade 21. Herved sikres, at der fortsat er en 10 optimal glidning mellem de to bøsninger, hvilket er meget vigtigt, idet sand og lignende abraderende materialer nemt kan invadere og beskadige lejet fra den substans, som behandles i beholderen.5 Between the inner surface of the flange 13 and the first bushing 19 or the end face of the shaft pin is provided a cavity 17 into which cavity 17 fat / oil is pumped in via an oil pump (not shown). Via this grease / oil-filled cavity 17, via the annular passage 18 between the cavity and the bed itself, there will be a lubrication between the interface of the first and second bushings 21. This ensures that there is still an optimal slip between the two bushes, which is very important, as sand and similar abrading materials can easily invade and damage the bed from the substance being treated in the container.

Den første bøsning fremstilles fortrinsvis af højstyrkestål, medens den anden 15 bøsning eksempelvis fremstilles af et keramisk materiale. Det er således væsentligt, at de to materialer, der glider mod hinanden, har en meget høj abrasionsresistens og hårdhed.The first bushing is preferably made of high-strength steel, while the second bushing is made, for example, of a ceramic material. Thus, it is essential that the two materials which slide against each other have a very high abrasion resistance and hardness.

Yderligere kan der på flangens/det første middels inderflade, som har forbindelse 20 med selve beholderen, monteres et par stopklodser/elementer 26, som returne rer til en korrekt placering af den anden bøsning i forhold til såvel den første bøsning som flangen. Stopelementerne mærkes eksempelvis med en stift på flangen. Det første leje 8 er således monteret i en åbning i selve kappen 11, og hvor flangen således dels har anlæg mod den ydre del af kappen dels udfylder 25 den åbning, der ikke optages af akseltap og leje. Flangens indre flade er således kongruent med den åbning, der er tilvejebragt i kappen 11. Ligeledes er der i flangens flade vendende mod det første leje tilvejebragt en hulhed, der i det væsentlige har samme form som den første bøsning, men som tillige har en rundt-gående reces, i hvilken den anden bøsning kan fastlimes.Further, on the inner surface of the flange / first medium, which has connection 20 with the container itself, a pair of stop blocks / elements 26 can be mounted which return to the correct positioning of the second bushing in relation to both the first bushing and the flange. For example, the stop elements are marked with a pin on the flange. Thus, the first bearing 8 is mounted in an opening in the casing 11 itself, and where the flange thus partly abuts the outer part of the casing and partly 25 fills the opening which is not occupied by shaft pin and bearing. Thus, the inner surface of the flange is congruent with the aperture provided in the sheath 11. Also provided in the surface of the flange facing the first bearing is a cavity which is essentially the same shape as the first bushing, but which also has a round -current recess in which the second bushing can be glued.

Det er også her væsentligt, at akseltappens leje således er placeret, at lejets 30 7 DK 174477 B1 midterakse i det væsentlige flugter med kappen, hvorved der opnås en optimal understøtning af selve lejet.It is also important here that the bearing of the shaft pin is positioned so that the middle axis of the bearing 30 7 flushes substantially with the sheath, thereby obtaining optimal support for the bearing itself.

Formålet med at have et hulrum, der som nævnt er fedt/oliefyldt 17, er for det 5 første at sørge for en sikker smøring mellem den første og den anden bøsning, men derudover tilsikrer hulrummet, at der kan finde en termisk udvidelse af akslen sted, hvilket sker under beholderens opvarmning, idet beholderen som tidligere nævnt typisk opvarmes til omkring 133°C, hvorved der sker en termisk udvidelse af akslen. For at der ikke skal ske en stukning/deformation af denne, er 10 det således nødvendigt, at der er en vis frigang, hvilket også opnås ved den anførte hulhed.The purpose of having a cavity which is fat / oil filled 17, as mentioned, is firstly to provide a secure lubrication between the first and second bushing, but in addition the cavity ensures that a thermal expansion of the shaft can take place. , which occurs during the heating of the container, as the container is, as previously mentioned, typically heated to about 133 ° C, thereby causing a thermal expansion of the shaft. Thus, in order not to fracture / deform it, there is a need for a certain clearance, which is also achieved by the cavity indicated.

Som følge af, at denne termiske udvidelse er mulig, er det således muligt i den anden ende, hvor akslen er ophængt i et andet leje 8a, at udforme pakdåsen 15 som en mekanisk pakdåse 9, hvilken pakdåse 9 udformes efter kendte principper. Da akslen således her er fastholdt urokkeligt og således ikke kan foretage en aksial bevægelse, må aksiale bevægelser foregå i det leje, som er tilvejebragt ifølge opfindelsen.Thus, because of this thermal expansion, it is possible at the other end, where the shaft is suspended in a second bearing 8a, to design the packing box 15 as a mechanical packing box 9, which packing box 9 is designed according to known principles. Thus, since the shaft is here held firmly and thus cannot make an axial movement, axial movements must take place in the bearing provided according to the invention.

20 Det første leje 8 kan også udformes på andre måder, idet den første bøsning vil kunne tilvejebringes som en udelukkende cirkulær ring, som er åben i begge en der. I det tilfælde måtte forbindelsen den første bøsning/ringen og akseltappen tilvejebringes ved eksempelvis en limning eller påkrympning.The first bearing 8 may also be formed in other ways, the first bushing being able to be provided as a purely circular ring which is open in either one there. In that case, the connection had to be provided with the first bushing / ring and shaft pin, for example by gluing or shrinking.

25 Væsentligt er det således, at den første bøsning er ubevægelig i forhold til akseltappen, at den anden bøsning er ubevægelig i forhold til flangen, at flangen er påmonteret tæt til selve kappen og danner en prop i den åbning, som der udskæres i selve kappen for ophæng af akseltappen i et leje, hvilket leje anbringes i det indre af selve flangen.Essentially, it is so that the first bushing is movable relative to the shaft pin, that the second bushing is movable relative to the flange, that the flange is mounted close to the casing itself and forms a plug in the opening cut into the casing itself for mounting the shaft pin in a bearing, which bearing is placed in the interior of the flange itself.

3030

Claims

8 DK 174477 B1

An apparatus (1) for sterilizing and / or heat treating and / or autoclaving products, comprising a container (2) having an inlet / filling unit (3) and an outlet / drain unit (4) as well as means (5) -, steam and / or heat applied to the interior of the container, comprising a rotatable and rotatable shaft (6) extending throughout the container (2) in at least two bearings (8, 8a) and to which shaft (6) at least one winding / vane / blade (10) is attached and said shaft (6) terminates at least one end 10 in a shaft pin (7), characterized in that the outermost end portion (12) of the shaft pin (7) is suspended. in the first bearing (8), the end surface of the shaft pin as well as the whole or partial first bearing (8) is surrounded by a liquid seal (13) arranged against the container sheath (11) by, for example, at least one gasket to the outer surface of the shaft (11). end surface is located substantially laterally of the container sheath (11) and The end surface of the pen (6) and the inner surface of the flange (13) are an oil / grease-filled cavity (17).

Apparatus according to claim 1, characterized in that the bearing (8) comprises a first bushing (19) completely or partially surrounding the radial 20 walls of the shaft pin (7), and a second bushing (20) located on the first bushing (19). , between which first and second bushings (19, 20) the rotary movement takes place.

Apparatus according to claim 2, characterized in that the first bushing 25 (19) is movable relative to the shaft (6) and the second bushing (20) is movable relative to the flange (13).

Apparatus according to any one of claims 2-3, characterized in that the bushes (19, 20) are made of diverse and hard material, preferably of hardened metal and ceramic material.

9 DK 174477 B1

Apparatus according to any one of the preceding claims, characterized in that the shaft pin (7) is removably mounted to the end surface of the shaft.

Apparatus according to any one of the preceding claims, characterized in that the apparatus (1) comprises an oil / grease pump connected to an oil / grease-filled cavity (17).

Apparatus according to any one of the preceding claims, characterized in that the oil / grease-filled cavity (17) communicates via an annular connecting channel (18) with the interface (21) between the first and second bushing (19,20). ).

Apparatus according to any of the preceding claims, characterized in that the shaft (6) is terminated at the other end in a shaft pin (7) which is suspended in a bearing (8a) and sealed with a mechanical sealing box (9).