EP0731212B1 - Reinigungsvorrichtung - Google Patents
Reinigungsvorrichtung Download PDFInfo
- Publication number
- EP0731212B1 EP0731212B1 EP96102312A EP96102312A EP0731212B1 EP 0731212 B1 EP0731212 B1 EP 0731212B1 EP 96102312 A EP96102312 A EP 96102312A EP 96102312 A EP96102312 A EP 96102312A EP 0731212 B1 EP0731212 B1 EP 0731212B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- nozzle
- machine according
- papermaking machine
- cleaning
- belt
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Revoked
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Classifications
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21G—CALENDERS; ACCESSORIES FOR PAPER-MAKING MACHINES
- D21G9/00—Other accessories for paper-making machines
- D21G9/0063—Devices for threading a web tail through a paper-making machine
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
- D21F1/00—Wet end of machines for making continuous webs of paper
- D21F1/32—Washing wire-cloths or felts
- D21F1/325—Washing wire-cloths or felts with reciprocating devices
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
- D21F7/00—Other details of machines for making continuous webs of paper
- D21F7/04—Paper-break control devices
Definitions
- the invention relates to a paper making machine with a device for cleaning a Conveyor belt of paper making machine to Example of a dry or wet wire belt or one Felt tape, according to the preamble of claim 1.
- conveyor belts in particular fabric belts, are used in paper machines. These conveyor belts become contaminated during the operation of the paper machine; Meshes or pores of these tapes are added, for example, from paper fibers, adhesives or other additives. To ensure that the conveyor belt functions properly, especially in the dryer section of the paper machine, the conveyor belt must be cleaned.
- a cleaning device that can be used for this is known from DE 92 08 909 U1.
- the idea was already given to additionally design rotatable spray nozzles that can be moved transversely to the direction of travel of the conveyor belt, so that the jet of nozzles not only describes a linear path due to the movability transversely to the direction of travel of the conveyor belt, but also that a circular movement is superimposed on this linear movement.
- the conveyor belt is subjected to cleaning liquid after deflection by 180 ° from above and from the side opposite the transport side.
- the rotatable nozzles are arranged in the area of the loop guide of the endless conveyor belt.
- collecting troughs are provided below the conveyor belt for receiving and removing cleaning fluid and detached contaminants.
- splash water or dirty water is formed as a result of the liquid jet emerging from the rotating spray nozzle at high pressure and hitting the conveyor belt. It also proves to be disadvantageous that water remains in the fabric of the conveyor belt, which leads to the rewetting of the paper web that comes into contact with the rotating conveyor belt a little later. This can lead to disruptions in the production process, particularly in the case of paper webs with grammages of less than 50 g / m 2 .
- WO 94/12349 A1 describes a device for Cleaning a conveyor belt of a paper making machine which has a fixed spray nozzle has that directed against the conveyor belt can be and for loading this conveyor belt serves with a liquid medium.
- the Spray nozzle is arranged within a suction chamber, which is used to discharge through the jet from Conveyor belt detached dirt and water mist and residual water is used.
- the invention has for its object a cleaning device for conveyor belts of a paper making machine specify at which one high cleaning effect and high functional reliability can be guaranteed. About that In addition, the cost of the cleaning device, especially their operating costs, only low his.
- a paper making machine will solve the problem with a cleaning device the features of claim 1 proposed.
- This is characterized in that the pressure of the cleaning medium is up to 1,000 bar and that the at least one cleaning nozzle has a nozzle diameter from 0.1 mm to 0.8 mm.
- the pressure of the cleaning medium is up to 1,000 bar and that the at least one cleaning nozzle has a nozzle diameter from 0.1 mm to 0.8 mm.
- Suction chamber from a jacket-shaped cleaning nozzle surrounding suction cup formed. In this way becomes a compact and integral design of a combined Nozzle and suction device reached.
- the suction cup can preferably be from a essential cylindrical casing of the cleaning nozzle be educated, as is known traversed across the conveyor belt.
- a circular casing in cross section can also be an elliptical or oval shape be provided. You can use the cleaning nozzle or the nozzle head against the direction of the belt Arrange eccentrically to the sheathing.
- the suction bell on the conveyor belt facing End area in particular bell or conically widening. This will the area of the conveyor belt that is from the Suction bell or detected by the suction chamber is enlarged.
- the cleaning nozzle is opposite the surface normal of the conveyor belt is inclined.
- preferred at least one rotating and inclined cleaning nozzle provided, as a result of which the jet of the Dirt adhering to the conveyor belt is better can replace. Because through the nozzle rotation one from different directions on the conveyor belt impinging cleaning impulse available. It has been shown that the cleaning effect in the most effective range of rotation in which the cleaning nozzle or the jet one opposite to the direction of travel of the conveyor belt Has speed component.
- the rotatable jet stream is in the direction of travel speed component of the conveyor belt has the cleaning nozzle to deactivate fluidically. Therefor an aperture can be provided that impinges of the jet stream prevented. But it can also, in terms of economical water consumption can be acted upon in sections in an advantageous manner Nozzle feed lines can be provided.
- Nozzle feed lines can be provided instead of a rotating cleaning nozzle rotatable nozzle head with several individual nozzles can be provided, one or more of which Nozzles as driving nozzles for rotating the nozzle head can be trained. It is possible also to provide at least one additional nozzle, the Outflow direction away from the conveyor belt, which is used only for the rotation drive.
- Liquid nozzles with a nozzle diameter of less than 0.3 mm related.
- a nozzle material became diamond, ruby or ceramic materials related.
- FIG. 1 shows an embodiment of the cleaning device 2, to clean one below designated as dryer fabric 4 dryer fabric belt in Area of a roller 6 of a paper machine, not shown is arranged.
- the cleaning device 2 can be used for any conveyor belt of a paper or carton making machine used be, for example for sieve belts or Felts of a sieve or a press or dryer section of a paper machine. in the The following is purely exemplary of dryer fabric belts a paper machine.
- the cleaning device 2 includes one in the following as Cleaning nozzle 8 designated rotor nozzle with a rotatable nozzle head 10, which is not shown Has nozzle arrangement. This nozzle arrangement can flow out one or more tangentially Driving nozzles for generating a rotational movement in the Range from 2000 to 3000 revolutions per minute comprise as well as one or more cleaning nozzles, the dryer fabric 4 with a cleaning medium act upon.
- suction cup 14 provided the cleaning nozzle 8 and the nozzle head 10 surrounds.
- the inside of the suction cup 14 is connected in terms of flow to a suction line 16, and forms one associated with the cleaning nozzle 8 Suction chamber 18.
- the cleaning device 2 comprises an energy chain for media supply, of which only a high-pressure hose that can be connected to a high-pressure pump 20 to supply the cleaning nozzle 8 with liquid in a pressure range of 100 bar up to 1000 bar, preferably from 100 bar to 400 bar, in particular from 150 bar to 300 bar and the suction line 16 for discharging splash water or Water mist with dirt particles present in it from the suction chamber 18 is shown.
- the device components described so far the cleaning device 2 are on a traversing trolley 11 in a direction transverse to the running direction of the dryer fabric 4 arranged displaceably.
- the Traverse car 11 sits on cross members 12 and is from a traversing motor, not shown can be driven at a specifiable speed, the traversing speed is usually is in the range of 0.3 m / min.
- the arrangement of the cleaning device in the area the roller 6 has the following advantage: the mesh of the transport screen 4 are due to the deflection the roller expanded so that the cleaning medium particularly easy in the fabric formation of the transport sieve penetrate and contaminants very effectively can remove.
- nozzle head 10 or several pivoted, an oscillating movement to carry out performing individual nozzles, the during the traversing movement of the nozzle head 10 a band-shaped area of the dryer fabric 4 paint over.
- FIGs 2 and 3 is a rotatable nozzle head 10 corresponding nozzle head 10 'in different Shown views.
- the nozzle head 10 ' is rotatable on a bearing 28 Flange 30 held. Inside the flange 30 a stationary nozzle feed line 32 is provided, which opens into a pressure chamber 34, the walls 36 against the inside of a cylindrical component 38 sealingly but slidably.
- the cylindrical member 38 has four at an angle openings at 90 ° to each other. That are nozzle feed lines 40 connected extend radially outward and in its end portion are preferably bent by 90 °, as in Figure 5 can be clearly seen.
- the nozzle feed lines 40 finally end in inclined cleaning nozzle end areas 42.
- the also provided Nozzles are not shown.
- the cleaning nozzle 8 or the individual Nozzles in the nozzle head 10 are for a pressure range from 100 bar to 1000 bar, preferably from 100 bar designed up to 400 bar and have a nozzle diameter from 0.1 to 0.8 mm, preferably from 0.2 mm up to 0.4 mm. Pressure values have proven particularly useful from 150 bar to 300 bar and nozzle diameter from 0.2 mm to 0.4 mm.
- a nozzle material Diamond or ruby, preferably sapphire or ceramic Materials used.
- FIGs 4 and 5 is a second embodiment a cleaning device schematically shown. This corresponds essentially to that described with reference to Figures 1 to 3 Cleaning device, which is why a repeat Explanation of the matching parts dispensed with becomes.
- One difference is the oval cross-sectional shape the suction cup 14 in which the nozzle head 10 eccentric against the direction of tape travel (arrow P) is arranged. This will have an improved suction effect on the water mist (loaded with dirt) exercised.
- Aperture 61 Between the nozzle head 10 and dryer 4 is one Aperture 61 is provided, the outermost edge 63 of which is angled is. This edge 63 serves as a fastening edge for bars 65, which in turn with the inner wall the suction bell 14 are connected. Between the individual webs 65, the suction cup wall 14 and the aperture edge 63 or openings Column 67 formed, through which a connection from Suction chamber 18 to the outside.
- the aperture 61 has an opening 69, the in the area of action of the rotating nozzles 71 located.
- the dimensioning and position of this Breakthrough 69, in particular in the circumferential direction of the Aperture 61 is selected so that there is always at least one Nozzle 71 passes through this area, here the Direction of the nozzle jet marked by the arrow P. Tape running direction is opposite.
- the liquid mist reflected by the drying wire 4 is either through the aperture 69 or through the aforementioned gap 67 into the suction space 18 sucked in.
- the nozzle head 10 is driven as in the case of first exemplary embodiment, via drive nozzles 73. From Figure 4 it can be seen that these drive nozzles 73 are aligned so that the outflowing Medium has an axial flow component, that of the axial component of the nozzle 71st escaping liquid jet directed is. This allows a compensation of the axial Recoil forces cause relief of the bearing 28 leads.
- Figure 6 shows another embodiment of a Cleaning device, but with no rotating Cleaning nozzles are provided.
- the cleaning nozzles 81 are fixed to the suction cup 14 connected.
- the cleaning nozzles 81 are for Center of the suction cup 14 aligned so that the liquid jets 83 are preferably in meet a point that corresponds to the opening area of the Suction cup 14 is opposite. That is the point directly on the conveyor belt or the Dryer screen, is a point-like application reached.
- the distance between the nozzles and the dryer fabric changed, the intersection also shifts the liquid jets. From the punctiform then becomes an area-like application.
- the liquid mist ricocheting off the dryer fabric 4 is - as in the previous cases - in the suction room 18 sucked in.
- the suction effect is increased through the one running below the nozzles 81 Suction cup that ends very close to the dryer fabric.
- the cleaning nozzles are explained 81 aligned so that the direction of movement of the dryer 4 directed component is as low as possible.
- three cleaning nozzles 81 are shown in FIG can be one or more than three Cleaning nozzles are provided.
- FIG 7 is a section of a schematic Dryer section shown, with two single-row drying groups 91 and 93 are indicated. Any of these both drying groups 91 and 93 settle in the well-known Way from several drying cylinders 95 and Deflection rollers 97 together. Drying cylinder 95 and Deflection rollers 97 are arranged so that the paper web alternately over the drying cylinders and deflection rollers is led and the dry group meandering goes through.
- Each dryer group 91 and 93 is a dryer fabric 4 assigned that at the beginning of each drying group the paper web runs up and at the end of the drying group is removed and returned.
- one cleaning device each 2 cooperates with a dryer 4.
- the two cleaning devices 2 are each on a dryer fabric guide roller 6 in the initial area the return of the dryer 4 arranged. It can thus be achieved that on the dryer fabric 4 Evaporate any remaining cleaning liquid can before using the dryer again Paper web comes into contact.
- An embodiment is particularly preferred a dryer group in which the cleaning device 2 in one of the first, preferably the first Drying wire guide roller 6 is arranged, the after the last drying cylinder 95 of a drying group 3 is provided. Because immediately after removing the dryer fabric 4 from the drying cylinders 95 initiated a cleaning process there is a relatively long time left before the dryer fabric 4 runs back to the beginning of the drying group and comes into contact with the material web again. Such an arrangement of the cleaning device avoids rewetting with a high degree of certainty the material web.
- the guide rollers following the roller 6 Return to remove liquid the dryer fabric 4, once through the overpressure in the overrun gussets or in the incoming ones Nips and the other by running applied to the liquid particles around the roller Centrifugal force.
- the overpressure in the incoming nip can also do this used the effect of the cleaning device 2 improve.
- the cleaning device so in the area of the incoming nip arranged, as shown in the left in Figure 7 Cleaning device is about visible or as explained in more detail with reference to Figure 8.
- the air entrained by the transport sieve 4 catches between the upper side facing the roller 6 of the transport screen 4 and the surface of the roller 6. This creates a N in the incoming nip Overpressure, which is an air flow through the porous Transport sieve 4 causes.
- the transport sieve 4 penetrating air tears from the cleaning device 2 detached dirt particles in the suction area the suction bell 14, it supports the Suction effect of this bell and thus the cleaning effect.
- the overpressure in the incoming nip N is shown in FIG. 8 indicated by small circles with the symbol "+".
- the cleaning device 2 is preferably so arranged that the cleaning medium to an area of the transport sieve 4, which is very close is arranged on the surface of the deflecting roller. This ensures that the transport sieve when hitting the cleaning medium only deformed very little so that the energy lost very much is low. With such an arrangement of the cleaning device remains ensured that the Overpressure in the area of the incoming nip N die Suction effect of the suction space supports and to it leads to detached particles from the surface of the transport screen are removed, at most very little cleaning medium from the suction chamber exit.
- the cleaning device 2 can, as in FIG. 7 evident also have a scraper device 101, the direction of movement of the dryer fabric 4 seen - the cleaning nozzles 8 is arranged downstream and cooperates with the surface of a wire guide roller 103, which deflects the dryer fabric 4.
- the Scraper device 101 is arranged such that from Figure 9 in more detail - from the surface the screen guide roller 103 dirt particles by means of a Scraper 105 are removed, which then in a Collect gutter 107. With the dirt particles it is on the surface of the wire guide roller 103 are particles such as that from the nozzle head 10 solved but have not yet been finally removed and then with the dryer 4 to the wire guide 103 were moved on.
- the cleaning staff can be both gaseous as well as liquid media are built up. Conceivable is also to use laser and ultrasound sources, to remove contaminants from the belt surface to ablate. Depending on the material of the conveyor belt and the adherent particle becomes the application the cleaning device selected. Usually liquid will flow continuously to the nozzle head submit. But it is also conceivable, with appropriate ones Surfaces or soiling a discontinuous, for example build up pulsating current of a cleaning medium, to clean the belt surface.
Landscapes
- Paper (AREA)
- Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
- Surgical Instruments (AREA)
- Cleaning Or Drying Semiconductors (AREA)
- Cleaning By Liquid Or Steam (AREA)
- Structure Of Belt Conveyors (AREA)
- Nonwoven Fabrics (AREA)
- Cleaning In General (AREA)
- Treatment Of Fiber Materials (AREA)
Description
Um ein einwandfreies Funktionieren des Transportbandes, insbesondere in der Trockenpartie der Papiermaschine, zu gewährleisten, bedarf es der Reinigung des Transportbandes. Eine hierfür verwendbare Reinigungsvorrichtung ist aus der DE 92 08 909 U1 bekannt. In dieser Druckschrift wurde bereits der Gedanke geäußert, quer zur Laufrichtung des Transportbandes verfahrbare Spritzdüsen zusätzlich rotierbar auszubilden, so daß der Düsenstrahl nicht nur eine lineare Bahn aufgrund der Verfahrbarkeit quer zur Laufrichtung des Transportbandes beschreibt, sondern daß dieser Linearbewegung zusätzlich eine kreisförmige Bewegung überlagert wird. Der Vorteil einer derart ausgebildeten Reinigungsvorrichtung liegt darin, daß auf das zu reinigende Transportband aufgespritzte Flüssigkeit gleichmäßiger und auf einen größeren Flächenbereich des Transportbandes aufgebracht werden kann. Mit anderen Worten: Die rotierbare Düse beaufschlagt anstelle eines linienförmigen einen relativ breiten streifenförmigen Bereich des Transportbandes mit einem Reinigungsmedium. Es ist also eher möglich, eine gleichmäßige Reinigung der gesamten Fläche des umlaufenden Transportbandes zu gewährleisten.
- Figur 1
- eine Ausführungsform der erfindungsgemäßen Reinigungsvorrichtung;
- Figur 2
- einen Schnitt durch einen bei der Vorrichtung nach Figur 1 verwendbaren Düsenkopf;
- Figur 3
- eine Ansicht des Düsenkopfes nach Figur 2 von unten.
- Figur 4
- einen Teilschnitt der erfindungsgemäßen Reinigungsvorrichtung gemäß einem weiteren Ausführungsbeispiel;
- Figur 5
- eine Draufsicht der Reinigungsvorrichtung gemäß Figur 4;
- Figur 6
- einen Schnitt durch eine Reinigungsvorrichtung gemäß einem weiteren Ausführungsbeispiel;
- Figur 7
- eine schematische Darstellung einer Trokkenpartie mit den erfindungsgemäßen Reinigungsvorrichtungen;
- Figur 8
- eine schematische Darstellung zur Verdeutlichung der Anordnung der Reinigungsvorrichtung gegenüber einer Umlenkwalze für das Transportband und
- Figur 9
- eine schematische Darstellung einer Schabereinrichtung.
Claims (25)
- Papierherstellungsmaschine mit einer Vorrichtung (2) zum Reinigen eines Transportbandes (4) der Papierherstellungsmaschine, zum Beispiel eines Trocken- oder Naßsiebbandes oder eines Filzbandes, wobei die Vorrichtung (2) wenigstens eine gegen das Transportband richtbare Düse (8) zum Beaufschlagen dieses Transportbandes (4) mit einem gasförmigen oder flüssigen Medium, einen mit der Reinigungsdüse (8) zusammenwirkenden Saugraum (18), welcher der Reinigungsdüse (8) derart zugeordnet ist, daß durch den Düsenstrahl (27) von dem Transportband (4) abgelöster Schmutz- und/oder Wassernebel oder Restwasser in den Saugraum (18) eingesogen und abgeführt werden kann, sowie eine der Reinigungsdüse (8) zugeordnete Hochdruckeinrichtung, die die Reinigungsdüse (8) mit einem unter einem Druck größer 100 bar stehenden Medium beaufschlagt, aufweist, dadurch gekennzeichnet, daß der Druck des Reinigungsmediums bis zu 1000 bar beträgt und daß die mindestens eine Reinigungsdüse (8) einen Düsendurchmesser von 0,1 mm bis 0,8 mm aufweist.
- Papierherstellungsmaschine nach Anspruch 1, dadurch gekennzeichnet, daß der Saugraum (18) von einer die Reinigungsdüse (8) mantelförmig umgebenden Saugglocke (14) gebildet ist.
- Papierherstellungsmaschine nach Anspruch 2, dadurch gekennzeichnet, daß die Saugglocke (14) eine elastische Ummantelung beziehungsweise Bürsten aufweist.
- Papierherstellungsmaschine nach einem der vorhergehenden Ansprüche 2 oder 3, dadurch gekennzeichnet, daß der die transportbandseitige Öffnung der Saugglocke (14) bildende Endbereich (22) der Saugglocke (14) dem Oberflächenverlauf des Transportbandes (4) oder der Zylinderform einer Walze (6) angepaßt ist.
- Papierherstellungsmaschine nach einem der vorhergehenden Ansprüche 2 bis 4, dadurch gekennzeichnet, daß der transportbandseitige Endbereich (22) der Saugglocke (14) in Richtung auf das Transportband (4) erweiternd ausgebildet ist.
- Papierherstellungsmaschine nach einem der vorhergehenden Ansprüche 2 bis 5, dadurch gekennzeichnet, daß der transportbandseitige Endbereich (22) der Saugglocke (14) die Reinigungsdüse (8) in Richtung auf das Transportband (4) überragt.
- Papierherstellungsmaschine nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß die Reinigungsdüse (8) um eine Achse rotierbar ausgebildet ist.
- Papierherstellungsmaschine nach Anspruch 7, dadurch gekennzeichnet, daß die rotierbare Reinigungsdüse (8) gegen die Rotationsachse (26) geneigt ist.
- Papierherstellungsmaschine nach Anspruch 8, dadurch gekennzeichnet, daß in einem Abschnitt, in dem der Düsenstrahl (27) der Reinigungsdüse (8) eine in Laufrichtung des Transportbandes (4) weisende Geschwindigkeitskomponente aufweist, die Reinigungsdüse (8) strömungstechnisch inaktiv ist.
- Papierherstellungsmaschine nach Anspruch 8, dadurch gekennzeichnet, daß zur Abschirmung der Reinigungsdüse (8) in dem Abschnitt mit in Laufrichtung des Transportbandes (4) gerichteter Geschwindigkeitskomponente des Düsenstrahls (27) eine Blende vorgesehen ist.
- Papierherstellungsmaschine nach Anspruch 8, gekennzeichnet durch sektionsweise beaufschlagbare Düsenzuleitungen (40).
- Papierherstellungsmaschine nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß die Düse zur Durchführung einer oszillierenden Bewegung schwenkbar gelagert ist.
- Papierherstellungsmaschine nach einem der vorhergehenden Ansprüche, gekennzeichnet durch einen mehrere Düsen aufweisenden rotierbaren Düsenkopf (10).
- Papierherstellungsmaschine nach einem der vorhergehenden Ansprüche, gekennzeichnet durch einen ovalen oder elliptischen Querschnitt des Saugraumes (18).
- Papierherstellungsmaschine nach Anspruch 14, dadurch gekennzeichnet, daß sich der Saugraum-Querschnitt in Bandlaufrichtung (Pfeil P) erstreckt, und daß die Reinigungsdüse (8) beziehungsweise der Düsenkopf (10) entgegen der Bandlaufrichtung exzentrisch im Saugraum (18) angeordnet ist.
- Papierherstellungsmaschine nach einem der vorhergehenden Ansprüche 2 bis 15, dadurch gekennzeichnet, daß der Düsenkopf (10) und/oder die Saugglocke (14) im Bereich des zwischen einer Walze (6) und dem auf diese auflaufenden Transportband (4) gebildeten, sich schließenden Nips (N) angeordnet sind.
- Papierherstellungsmaschine nach einem der Ansprüche 13 bis 16, dadurch gekennzeichnet, daß der Düsenkopf (10) eine oder mehrere Düsen mit einem Düsendurchmesser von 0,2 mm bis 0,4 mm aufweist.
- Papierherstellungsmaschine nach einem der Ansprüche 13 bis 17, dadurch gekennzeichnet, daß eine mit dem Düsenkopf (10) zusammenwirkende Schabereinrichtung (101) vorgesehen ist, die mit Hilfe des Düsenkopfs (10) gelöste Partikel aufnimmt.
- Papierherstellungsmaschine nach Anspruch 18, dadurch gekennzeichnet, daß die Schabereinrichtung (101) an einer Siebleitwalze (103) angeordnet ist, die -in Bewegungsrichtung des Transportsiebes (4) gesehen- den Düsenkopf (10) nachgeordnet ist.
- Papierherstellungsmaschine nach Anspruch 19, dadurch gekennzeichnet, daß die Schabereinrichtung (101) mit der Oberfläche einer Siebleitwalze zusammenwirkt.
- Papierherstellungsmaschine nach einem der Ansprüche 18 bis 20, dadurch gekennzeichnet, daß die Schabereinrichtung (101) einen Schaber (105) aufweist, mit einer Auffangrinne (107) zusammenwirkt, die die vom Schaber (105) abgetragenen Partikel aufnimmt.
- Papierherstellungsmaschine nach einem der Ansprüche 19 bis 21, dadurch gekennzeichnet, daß die Siebleitwalze (103) mit der von der Düse gereinigten Oberfläche des Transportsiebes (4) in Berührung tritt.
- Papierherstellungsmaschine nach einem der Ansprüche 19 bis 22, dadurch gekennzeichnet, daß die Siebleitwalze (103) im Rückführungstrum des Transportbandes (4) angeordnet ist.
- Papierherstellungsmaschine nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß die Reinigungsvorrichtung dem letzten Trockenzylinder einer Gruppe nachgeordnet ist und im Bereich einer der ersten Siebleitwalzen, vorzugsweise der ersten Siebleitwalze, nach dem letzten Trockenzylinder der jeweiligen Trockengruppe zugeordnet ist.
- Papierherstellungsmaschine nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß die Reinigungsvorrichtung eine Ultraschall-und/oder Laserlichtquelle aufweist.
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19507938 | 1995-02-24 | ||
DE19507938A DE19507938C2 (de) | 1995-02-24 | 1995-02-24 | Reinigungsvorrichtung |
DE19539015 | 1995-10-19 | ||
DE19539015A DE19539015C2 (de) | 1995-02-24 | 1995-10-19 | Reinigungsvorrichtung |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0731212A1 EP0731212A1 (de) | 1996-09-11 |
EP0731212B1 true EP0731212B1 (de) | 2001-11-21 |
Family
ID=26013093
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP96102312A Revoked EP0731212B1 (de) | 1995-02-24 | 1996-02-16 | Reinigungsvorrichtung |
Country Status (8)
Country | Link |
---|---|
US (1) | US5783044A (de) |
EP (1) | EP0731212B1 (de) |
JP (1) | JPH08269885A (de) |
CN (1) | CN1135552A (de) |
AT (1) | ATE209271T1 (de) |
BR (1) | BR9600804A (de) |
CA (1) | CA2170299A1 (de) |
FI (1) | FI111652B (de) |
Families Citing this family (71)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19627973A1 (de) * | 1996-07-11 | 1998-01-15 | Voith Sulzer Papiermasch Gmbh | Reinigungsvorrichtung |
DE19702196C5 (de) * | 1997-01-23 | 2010-04-22 | Voith Patent Gmbh | Vorrichtung zum Reinigen eines Transportbandes |
DE19702793A1 (de) * | 1997-01-27 | 1998-10-08 | Voith Sulzer Papiermasch Gmbh | Reinigungsvorrichtung |
DE19712753A1 (de) * | 1997-03-26 | 1998-10-01 | Voith Sulzer Papiermasch Gmbh | Reinigungsvorrichtung |
DE19712998C2 (de) * | 1997-03-27 | 1999-05-12 | Voith Sulzer Papiermasch Gmbh | Vorrichtung zum Reinigen eines Transportbandes |
US6143092A (en) * | 1997-06-25 | 2000-11-07 | Voith Sulzer Papiermaschinen Gmbh | Process for cleaning a transport belt |
DE19726897C2 (de) † | 1997-06-25 | 2000-01-13 | Voith Sulzer Papiermasch Gmbh | Verfahren zum Reinigen eines Transportbandes |
US6103636A (en) * | 1997-08-20 | 2000-08-15 | Micron Technology, Inc. | Method and apparatus for selective removal of material from wafer alignment marks |
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-
1996
- 1996-02-16 AT AT96102312T patent/ATE209271T1/de not_active IP Right Cessation
- 1996-02-16 EP EP96102312A patent/EP0731212B1/de not_active Revoked
- 1996-02-18 CN CN96105918A patent/CN1135552A/zh active Pending
- 1996-02-23 JP JP8036827A patent/JPH08269885A/ja active Pending
- 1996-02-23 FI FI960844A patent/FI111652B/fi not_active IP Right Cessation
- 1996-02-23 BR BR9600804A patent/BR9600804A/pt active Search and Examination
- 1996-02-26 CA CA002170299A patent/CA2170299A1/en not_active Abandoned
- 1996-02-26 US US08/605,545 patent/US5783044A/en not_active Expired - Fee Related
Also Published As
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---|---|
BR9600804A (pt) | 1997-12-23 |
CA2170299A1 (en) | 1996-08-25 |
CN1135552A (zh) | 1996-11-13 |
FI960844A0 (fi) | 1996-02-23 |
JPH08269885A (ja) | 1996-10-15 |
EP0731212A1 (de) | 1996-09-11 |
ATE209271T1 (de) | 2001-12-15 |
FI960844A (fi) | 1996-08-25 |
US5783044A (en) | 1998-07-21 |
FI111652B (fi) | 2003-08-29 |
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