EP1225270A2 - Verfahren zur Konditionierung eines umlaufenden Bandes - Google Patents
Verfahren zur Konditionierung eines umlaufenden Bandes Download PDFInfo
- Publication number
- EP1225270A2 EP1225270A2 EP01125586A EP01125586A EP1225270A2 EP 1225270 A2 EP1225270 A2 EP 1225270A2 EP 01125586 A EP01125586 A EP 01125586A EP 01125586 A EP01125586 A EP 01125586A EP 1225270 A2 EP1225270 A2 EP 1225270A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- felt
- conditioning
- zone
- over
- web
- 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.)
- Granted
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Classifications
-
- 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
Definitions
- the invention relates to a method for conditioning a circulating Felt tape one of the production of a fibrous web, in particular Paper or cardboard web, serving machine, especially paper machine.
- Appropriate treatment or conditioning of felt ribbons can, for example, improve the profile quality of felt and paper, the improvement of the web running properties and possibly also one Increasing the stability of the drainage and / or the dryness etc. serve.
- An object of the invention is to implement the method of the type mentioned above to further develop that moisture cross profile deviations optimally corrected can be achieved, in particular to achieve a flat moisture cross profile.
- a method for conditioning is used to achieve this object a circulating felt belt for the production of a fibrous web, in particular paper or cardboard web, serving machine, in particular paper machine, proposed in which one over the Felting bandwidth is done zone by zone by at least a fibrous web property cross profile like that in particular Moisture cross profile of the fibrous web and / or at least one felt strip property cross profile such as in particular the water content of the felt tape about the web or bandwidth and / or the permeability of the felt tape measured over the web or bandwidth and the felt tape in the different zones depending on the one for those concerned Zones obtained measurement result is conditioned differently.
- Zone-wise conditioning can be in addition to one, for example effective conditioning across the entire range. This is however not mandatory.
- Procedure is obtained from those for the different zones Measured values formed an average and the intensity of conditioning in a respective zone depending on the deviation of the for the measurement zone obtained from the mean value selected.
- Furnishings individually or in any combination with each other be used:
- the felt conditioning can be done at least partially by means of at least one traversing spray nozzle.
- the nozzle can e.g. either with more even Drive speed over the felt belt, taking the water pressure can be regulated accordingly with the cross profile deviation as a manipulated variable can, or at constant water pressure, the speed of the Nozzle and thus the dwell time at certain positions with the cross profile deviation can be regulated as a manipulated variable.
- the felt conditioning can be at least partially also by means of at least one zone comprising several nozzles controllable and preferably additionally movable over the zone width Spray tube done.
- the individual spray tube nozzles can each be felted by the relevant valves are controlled.
- the felt conditioning can be at least partially also by means of at least one zone-controllable and preferably additionally take place over the zone width of the movable pipe suction device.
- a pipe suction cup can be used that is one at least substantially over the entire felt width ceramic body has, which is provided with a slotted surface, over which the felt tape can be acted upon by vacuum, the zone being the each effective slotted area, in particular by moving Tongues, e.g. Metal tongues that can be variably adjusted to the particular to vary the respective exposure time of the vacuum accordingly.
- Tongues e.g. Metal tongues that can be variably adjusted to the particular to vary the respective exposure time of the vacuum accordingly.
- the felt conditioning at least partially, for example by means of at least one traversing short pipe suction device, the has a ceramic body with a slotted surface is, over which the felt band can be acted upon by vacuum, the effective slotted area portion in particular by at least one movable Tongue, e.g. Metal tongue, variably adjustable, in particular to vary the respective exposure time of the vacuum accordingly.
- Tongue e.g. Metal tongue
- uneven felt properties are such as particular an uneven permeability and an uneven water content the cause of moisture cross profile disturbances.
- the properties in question are less of the type of conditioning or treatment as of the requirements of the different or appropriate application of treatment.
- Another aim of the invention is therefore in particular the guarantee good web running properties. Certain properties across the felt width, especially in the marginal areas, must be taken into account. In addition, differences between the upper and lower felt should also be eliminated become. That the profile correction can only be in a working window move, which is given by the web guiding requirements. Runability are in particular the surface affinity of felt and Paper and the permeability of the felt to the effect of vacuum the train. The procedure of the type mentioned above is also said to be so be trained that an improvement in the moisture cross-sections achieved and the risk of so-called edge plucking is reduced.
- a method for conditioning is used to achieve this object a circulating felt belt for the production of a fibrous web, in particular paper or cardboard web, serving machine, in particular paper machine, proposed in which one over the Felting bandwidth is done by zone conditioning Amounts of conditioning agent supplied in the different zones separated according to respective, in particular variable, setpoints can be set.
- the Effectiveness of the aforementioned conditioning devices on the Felt width may also be different, causing the cross sections can be improved accordingly and the risk of a so-called Edge plucking can be reduced accordingly. They are good ones Guaranteed web running properties. Certain properties about the Felt width, especially at the edges, can be adjusted accordingly are taken into account, and there may also be differences between Upper and lower felt are removed. That the profile correction can only move in a work window which is determined by the web guiding requirements given is. Web running properties are in particular the surface affinity of felt and paper and the permeability of the felt to the Effect of vacuum on the web. It will improve Moisture cross profiles reached and the risk of so-called plucking reduced. In general, an optimal coordination is possible.
- the possibly different dosage of conditioning agent across the width of the felt tape can be done in different ways respectively.
- the conditioning agent preferably diluted uniformly outside the machine.
- Conditioning agent is supplied at least partially by means of at least one traversing order unit, so that for a respective Zone certain amount of conditioning agent preferably by the dwell time of the traversing order unit in the respective Zone set.
- Conditioning agent is supplied at least partially by means of a variety of stationary nozzles provided across the felt width, which a corresponding number of valves is assigned, the amount of conditioning agent determined for a particular zone is preferred via a respective valve assigned to the relevant nozzle set.
- the process is preferably conditioning chemicals comprehensive conditioning agent mixed with the conditioning water.
- the conditioning agent preferably conditioning chemicals, at least one Applicator specially designed for chemical conditioning be fed.
- the supplied feed is preferably controlled in zones Conditioning agent quantity is provided.
- Felt properties such as water content or permeability, change with their term, sometimes also unevenly over the Felt width, which negatively affects the moisture cross profile of the paper web can be. It can also change the running behavior of the Paper web are negatively influenced (web edge problems). For example also again in connection with those already mentioned problems with web running problems that arise with felt conditioning, etc. directed.
- Another object of the invention is therefore the method of the beginning mentioned type in such a way that to achieve an optimal dry content with good moisture cross profile after the press even and targeted felt properties can be ensured across the felt bandwidth can and a good web run is guaranteed by targeted felt properties can be.
- a method for conditioning is used to achieve this object a circulating felt belt for the production of a fibrous web, in particular paper or cardboard web, serving machine, in particular paper machine, proposed in which one over the Felting bandwidth is done zone by zone by at least a felt tape property cross profile measured and across the felt tape width zonal conditioning elements according to the measured Felt ribbon property cross profile can be set.
- an adjustment of over the felt bandwidth is provided zonal or sectional conditioning elements according to the Felt tape property cross profiles (e.g. pressure-HD-SR ⁇ , vacuum-RS ⁇ possible in dry areas of the felt).
- the felt strip property cross-profile is using an online measuring device measured, in conjunction with the zonal conditioning elements preferably each formed a closed control loop becomes.
- At least one that can be specified Average felt property value and / or at least one predeterminable ratio from a felt property average for an upper felt and a felt property average is set for a bottom felt.
- the online measurement of the moisture cross profile enables immediately after the press section, especially together with the previous ones measures mentioned, possibly including the preferred drainage quantities also measured online at the a complex control loop for the relevant gutters and pipe suction devices Achieving optimal dryness and moisture cross-section after the press and an optimal web run, this one complex control loop may even be self-learning.
- the invention further relates to a pipe suction device for conditioning a encircling felt tape, which in a special way to carry out the method according to the invention is suitable.
- the invention comprises Pipe suction cups are at least essentially over the entire width of the felt extending ceramic body, which is provided with a slotted surface is, over which the felt band can be acted upon by vacuum, wherein zone-wise the effective slotted area in particular by moving tongues, e.g. Metal tongues, is adjustable to order in particular to vary the respective exposure time of the vacuum accordingly.
- a traversing one Pipe suction device for conditioning a circulating felt belt provided with a ceramic body with a slotted surface via which the felt band can be acted upon by vacuum, wherein the effective slotted area, in particular by at least a movable tongue, e.g. Metal tongue, variably adjustable, in particular to vary the respective exposure time of the vacuum accordingly.
- a movable tongue e.g. Metal tongue
- Figures 1 to 3 show various devices purely by way of example for zone-wise or sectional conditioning over the felt bandwidth of a respective felt ribbon 10.
- a targeted conditioning of the felt belt 10 is intended to Places where there is particularly high compression or contamination is present, moisture cross profile deviations corrected and an even one Moisture cross profile can be achieved.
- a traversing spray tube nozzle for example a high pressure spray tube nozzle (see FIG. 1) or a spray tube
- a high-pressure spray pipe targeted water introduced and / or for example by means of a pipe suction device (see. Fig. 3) selectively sucked water out of compacted areas in the felt belt 10.
- the moisture cross profile of the fibrous web, in particular Paper or cardboard web, or the water content of the felt belt 10 over the web or bandwidth or the permeability of the felt belt 10 over the felt bandwidth can be measured.
- the targeted zone-wise conditioning of the felt belt 10 additionally for conventional felt conditioning across the entire width of the The fibrous web or the felt tape is effective.
- the intensity of the zones Conditioning depends on the amount of deviation above-mentioned measured values from a determined over the web or bandwidth Average.
- Fig. 1 shows a schematic representation of a suitable traversing Spray tube nozzle 12, e.g. High pressure spray tube nozzle, which by means of a Leadership, for example a guide rail 14, all places over the Width of the felt belt 10 can start.
- the spray nozzle can 12 either at a constant speed over the felt belt 10 drive away, the water pressure with the cross profile deviation as Control variable can be regulated, or it can with constant water pressure the speed of this traversing spray nozzle 12 and thus the dwell time at certain positions with the cross profile deviation can be regulated as a manipulated variable.
- hose 1 is a drive formed here by an electric motor 16, a hose reel 18 and a traversing spray tube nozzle 12 leading hose 20 can be seen.
- FIG. 2 schematically shown, several nozzles such as Comprehensive high pressure nozzles, zone-wise controllable and / or controllable spray tube 24, e.g. High pressure spray tube, suitable.
- the individual spray tube nozzles 22 can be controlled by the respective valves 23 in order to achieve targeted conditioning of the individual felt areas. In particular, regulation of the individual valves 23 in accordance with the relevant Cross profile measurement can be carried out.
- the method in FIG. 3 is also used to carry out the method suitable schematically represented zone suction tube suction device 26, with which individual felt areas can be sucked.
- the pipe suction 26 can ceramic body 28 extending across the entire felt width in which a certain portion of the surface 30 comprises slots 32 through which the vacuum on the felt belt 10 (see. Fig. 1 and 2) can act and in particular through movable tongues 34, e.g. Metal tongues, the slotted surface 36 and thus the exposure time of the Vacuum can be varied.
- movable tongues 34 e.g. Metal tongues
- the open area is possible.
- a traversing short one Pipe suction can be provided.
- FIG. 4 shows a schematic representation of a double felted press 40, the two felt belts 10 1 , 10 2 of which are conditioned zone by zone.
- felt tape property cross profiles are measured using appropriate measuring devices.
- Zonal or sectional conditioning elements 46, 48 provided over the width of the respective felt belt 10 1 , 10 2 are set in accordance with the felt belt property cross-sections (eg pressure-HD-SR ⁇ , vacuum-RS ⁇ at dry locations of the respective felt belt).
- an online measuring device can be provided for measuring a respective cross-section of the felt strip property.
- a closed control loop is thus possible in connection with the sectional or zonal conditioning elements 46, 48.
- Average felt property values or ratios of average felt property values for the upper felt 10 1 and the lower felt 10 2 of the double-felted press nip 50 can be set to achieve an optimal dry content and moisture cross profile after the press nip 50 or after the press section with an optimal web run.
- a measuring device 52 can immediately after the press section the moisture cross profile of the fibrous web 54 can be measured online, what together with the measures mentioned above, if necessary under Inclusion of the drainage quantities also measured online Gutters and pipe suction devices, a complex control loop to achieve a optimal dryness and an optimal moisture cross profile the press 40 allows, the complex control loop if necessary can even be self-learning.
- the fibrous web 54 can in particular be a paper or Trade cardboard web.
- conditioning elements 46, 48 again traversing spray tube nozzles controllable in zones Spray tubes and / or zone suction tube suction can be used. These can again have such a structure, for example this was previously described.
- FIG. 4 the double felted press nip 50 in the present case between two press rolls 56, 58 formed.
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- Structure Of Belt Conveyors (AREA)
- Seal Device For Vehicle (AREA)
- Nonwoven Fabrics (AREA)
Abstract
Description
- Druckluft zum Ausblasen von Wasser, z.B. Regulierung des Wassergehalts
- Chemische Konditionierungszusätze, Profilierung durch Menge und/oder Dosierung, z.B. Regulierung der Permeabilität
- alle Behandlungs- bzw. Konditionierungsarten sind auf der Papierseite und/oder der Laufseite möglich.
- Randzupfen bei der Filztrennung. D.h. bei der Filztrennung nach Doppelfilzpressen wird der Papierbahnrand durch den weggeführten Filz stellenweise vom papierführenden Filz gelöst.
- Randaufstehen bzw. Randabklappen. Die Papierränder haben nicht genügend Haftung auf dem Filz bzw. der nötige Unterschied Oberfilz zu Unterfilz ist nicht ausreichend.
- Druckluft zum Ausblasen von Wasser, z.B. Regulierung des Wassergehalts
- Chemische Konditionierungszusätze, Profilierung durch Menge und/oder Dosierung, z.B. Regulierung der Permeabilität
- alle Behandlungs- bzw. Konditionierungsarten sind auf der Papierseite und/oder der Laufseite möglich.
- Fig. 1
- eine schematische Darstellung einer traversierenden Spritzrohrdüse,
- Fig. 2
- eine schematische Darstellung eines mehrere Düsen umfassenden, zonenweise ansteuerbaren Spritzrohres,
- Fig. 3
- eine schematische Darstellung eines zonenweise wirkenden Rohrsaugers, und
- Fig. 4
- eine schematische Darstellung einer doppelt befilzten Presse, deren beiden Filze über deren Breite zonenweise konditioniert werden.
- 10
- Filzband
- 101
- oberes Filzband
- 102
- unteres Filzband
- 12
- traversierende Spritzrohrdüse
- 14
- Führungsschiene
- 16
- Antrieb
- 18
- Schlauchaufrollung
- 20
- Schlauch
- 22
- Düsen
- 23
- Ventile
- 24
- Spritzrohr
- 26
- Rohrsauger
- 28
- Keramikkörper
- 30
- Keramikoberfläche
- 32
- Schlitze
- 34
- Zungen
- 36
- geschlitzte Fläche
- 38
- Einrichtung
- 40
- Presse
- 42
- Meßeinrichtung
- 44
- Meßeinrichtung
- 46
- Konditionierelement
- 48
- Konditionierelement
- 50
- Preßnip
- 52
- Meßeinrichtung
- 54
- Faserstoffbahn
- 56
- Preßwalze
- 58
- Preßwalze
- b
- Filzbreite
Claims (21)
- Verfahren zur Konditionierung eines umlaufenden Filzbandes (10) einer der Herstellung einer Faserstoffbahn (54), insbesondere Papier- oder Kartonbahn, dienenden Maschine, insbesondere Papiermaschine, bei dem eine über die Filzbandbreite (b) zonenweise Konditionierung durchgeführt wird, indem wenigstens ein Faserstoffbahn-Eigenschaftsquerprofil wie insbesondere das Feuchtequerprofil der Faserstoffbahn (54) und/oder wenigstens ein Filzband-Eigenschaftsquerprofil wie insbesondere der Wassergehalt des Filzbandes (10) über die Bahn- bzw. Bandbreite und/oder die Permeabilität des Filzbandes über die Bahn- bzw. Bandbreite gemessen und das Filzband (10) in den verschiedenen Zonen jeweils in Abhängigkeit von dem für die betreffenden Zonen erhaltenen Meßergebnis unterschiedlich konditioniert wird.
- Verfahren nach Anspruch 1,
dadurch gekennzeichnet, daß aus den für die verschiedenen Zonen erhaltenen Meßwerten ein Mittelwert gebildet und die Intensität der Konditionierung in einer jeweiligen Zone in Abhängigkeit von der Abweichung des für die jeweilige Zone erhaltenen Meßergebnisses von dem Mittelwert gewählt wird. - Verfahren nach Anspruch 1 oder 2,
dadurch gekennzeichnet, daß die Filzkonditionierung zumindest teilweise mittels wenigstens einer traversierenden Spritzrohrdüse (12) erfolgt. - Verfahren nach einem der vorhergehenden Ansprüche,
dadurch gekennzeichnet, daß die Filzkonditionierung zumindest teilweise mittels wenigstens eines mehrere Düsen (22) umfassenden, zonenweise ansteuerbaren und vorzugsweise zusätzlich über die Zonenbreite beweglichen Spritzrohres (24) erfolgt. - Verfahren nach einem der vorhergehenden Ansprüche,
dadurch gekennzeichnet, daß die Filzkonditionierung zumindest teilweise mittels wenigstens eines zonenweise ansteuerbaren und vorzugsweise zusätzlich über die Zonenbreite beweglichen Rohrsaugers (26) erfolgt. - Verfahren nach Anspruch 5,
dadurch gekennzeichnet, daß ein Rohrsauger (26) verwendet wird, der einen sich vorzugsweise zumindest im wesentlichen über die gesamte Filzbreite (b) erstreckenden Keramikkörper (28) besitzt, der mit einer geschlitzten Fläche (36) versehen ist, über die das Filzband (10) mit Vakuum beaufschlagbar ist, wobei zonenweise der jeweils wirksame geschlitzte Flächenanteil insbesondere durch bewegliche Zungen (34), vorzugsweise Metallzungen, variabel einstellbar ist, um insbesondere die jeweilige Einwirkzeit des Vakuums entsprechend zu variieren. - Verfahren nach einem der vorhergehenden Ansprüche,
dadurch gekennzeichnet, daß die Filzkonditionierung zumindest teilweise mittels wenigstens eines traversierenden kurzen Rohrsaugers erfolgt, der einen Keramikkörper besitzt, der mit einer geschlitzten Fläche versehen ist, über die das Filzband mit Vakuum beaufschlagbar ist, wobei der wirksame geschlitzte Flächenanteil insbesondere durch wenigstens eine bewegliche Zunge, vorzugsweise Metallzunge, variabel einstellbar ist, um insbesondere die jeweilige Einwirkzeit des Vakuums entsprechend zu variieren. - Verfahren zur Konditionierung eines umlaufenden Filzbandes (10) einer der Herstellung einer Faserstoffbahn (54), insbesondere Papier- oder Kartonbahn, dienenden Maschine, insbesondere Papiermaschine, bei dem eine über die Filzbandbreite (b) zonenweise Konditionierung durchgeführt wird, indem die Mengen an in den verschiedenen Zonen zugeführtem Konditionierungsmittel entsprechend jeweiliger, insbesondere variabler Sollwerte getrennt eingestellt werden, insbesondere nach einem der vorhergehenden An- - sprüche.
- Verfahren nach Anspruch 8,
dadurch gekennzeichnet, daß das Konditionierungsmittel außerhalb der Maschine verdünnt wird. - Verfahren nach Anspruch 8 oder 9,
dadurch gekennzeichnet, daß die Zufuhr von Konditionierungsmittel zumindest teilweise mittels wenigstens einer traversierenden Auftragseinheit (12) erfolgt, wobei die für eine jeweilige Zone bestimmte Menge an Konditionierungsmittel vorzugsweise durch die Verweilzeit der traversierenden Auftragseinheit (12) in der jeweiligen Zone eingestellt wird. - Verfahren nach einem der vorhergehenden Ansprüche,
dadurch gekennzeichnet , daß die Zufuhr von Konditionierungsmittel zumindest teilweise mittels einer Vielzahl von über die Filzbreite vorgesehenen stationären Düsen (22) erfolgt, wobei den Düsen (22) vorzugsweise eine entsprechende Anzahl von Ventilen (23) zugeordnet ist und die für eine jeweilige Zone bestimmte Menge an Konditionierungsmittel vorzugsweise über ein jeweiliges, der betreffenden Düse (22) zugeordnetes Ventil (23) eingestellt wird. - Verfahren nach einem der vorhergehenden Ansprüche,
dadurch gekennzeichnet, daß das Konditionierungsmittel, vorzugsweise Konditionierungschemikalien, Konditionierungswasser zugemischt wird. - Verfahren nach einem der Ansprüche 8 bis 11,
dadurch gekennzeichnet, daß das Konditionierungsmittel, vorzugsweise Konditionierungschemikalien, wenigstens einer speziell nur zur chemischen Konditionierung vorgesehenen Konditionierungseinrichtung zugeführt wird. - Verfahren nach einem der vorhergehenden Ansprüche,
dadurch gekennzeichnet, daß eine vorzugsweise zonenweise Regelung der zugeführten Konditionierungsmittelmenge vorgesehen ist. - Verfahren zur Konditionierung eines umlaufenden Filzbandes (10) einer der Herstellung einer Faserstoffbahn (54), insbesondere Papier- oder Kartonbahn, dienenden Maschine, insbesondere Papiermaschine, bei dem eine über die Filzbandbreite (b) zonenweise Konditionierung durchgeführt wird, indem wenigstens ein Filzband-Eigenschaftsquerprofil gemessen und über die Filzbandbreite (b) zonale Konditionierelemente (46, 48, 12, 24, 26) entsprechend dem gemessenen Filzband-Eigenschaftsquerprofil eingestellt werden, insbesondere nach einem der vorhergehenden Ansprüche.
- Verfahren nach Anspruch 15,
dadurch gekennzeichnet, daß das Filzband-Eigenschaftsquerprofil mittels einer Online-Meßeinrichtung (44) gemessen wird, wobei in Verbindung mit den zonalen Konditionierelementen (46, 48, 12, 24, 26) vorzugsweise jeweils ein geschlossener Regelkreis gebildet wird. - Verfahren nach Anspruch 15 oder 16,
dadurch gekennzeichnet, daß wenigstens ein vorgebbarer Filzeigenschaftsmittelwert und/oder wenigstens ein vorgebbares Verhältnis aus einem Filzeigenschaftsmittelwert für einen Oberfilz (101) und einem Filzeigenschaftsmittelwert für einen Unterfilz (102) eingestellt wird. - Verfahren nach Anspruch 17,
dadurch gekennzeichnet, daß der Filzeigenschaftsmittelwert bzw. das Verhältnis von Filzeigenschaftsmittelwerten in Abhängigkeit von einem gewünschten Trockengehalt und/oder Feuchtequerprofil nach einem jeweiligen Preßnip (50) bzw. nach der Pressenpartie vorgegeben wird. - Verfahren nach einem der vorhergehenden Ansprüche,
dadurch gekennzeichnet, daß unmittelbar nach der Pressenpartie das Feuchtequerprofil und/oder an Rinnen und/oder Rohrsaugern anfallende Entwässerungsmengen online gemessen und die zonalen Konditionierelemente (46, 48, 12, 24, 26) in Abhängigkeit von dem daraus erhaltenen Meßergebnis eingestellt werden. - Rohrsauger (26) zur Konditionierung eines umlaufenden Filzbandes (10), insbesondere zur Durchführung des Verfahrens nach einem der vorhergehenden Ansprüche, mit einem sich zumindest im wesentlichen über die gesamte Filzbreite (b) erstreckenden Keramikkörper (28), der mit einer geschlitzten Fläche (36) versehen ist, über die das Filzband (10) mit Vakuum beaufschlagbar ist, wobei zonenweise der jeweils wirksame geschlitzte Flächenanteil insbesondere durch bewegliche Zungen (34), vorzugsweise Metallzungen, variabel einstellbar ist, um insbesondere die jeweilige Einwirkzeit des Vakuums entsprechend zu variieren.
- Traversierender Rohrsauger zur Konditionierung eines umlaufenden Filzbandes, insbesondere zur Durchführung des Verfahrens nach einem der vorhergehenden Ansprüche, mit einem Keramikkörper, der mit einer geschlitzten Fläche versehen ist, über die das Filzband mit Vakuum beaufschlagbar ist, wobei der wirksame geschlitzte Flächenanteil insbesondere durch wenigstens eine bewegliche Zunge, vorzugsweise Metallzunge, variabel einstellbar ist, um insbesondere die jeweilige Einwirkzeit des Vakuums entsprechend zu variieren.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE10102199 | 2001-01-18 | ||
| DE10102199A DE10102199A1 (de) | 2001-01-18 | 2001-01-18 | Verfahren zur Konditionierung eines umlaufenden Filzbandes |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| EP1225270A2 true EP1225270A2 (de) | 2002-07-24 |
| EP1225270A3 EP1225270A3 (de) | 2003-08-27 |
| EP1225270B1 EP1225270B1 (de) | 2006-10-11 |
Family
ID=7671010
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP01125586A Expired - Lifetime EP1225270B1 (de) | 2001-01-18 | 2001-10-26 | Verfahren zur Konditionierung eines umlaufenden Bandes |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US6716316B2 (de) |
| EP (1) | EP1225270B1 (de) |
| AT (1) | ATE342397T1 (de) |
| CA (1) | CA2368330C (de) |
| DE (2) | DE10102199A1 (de) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1516954A3 (de) * | 2003-09-19 | 2006-03-29 | Voith Paper Patent GmbH | Vorrichtung und Verfahren zur Beurteilung der Beschaffenheit mindestens eines umlaufenden Bandes |
| ITMI20101699A1 (it) * | 2010-09-17 | 2012-03-18 | Giuseppe Cristini S P A Sa | Apparecchiatura e metodo di controllo delle condizioni di un nastro circolante in una macchina di fabbricazione della carta |
| ITMI20101698A1 (it) * | 2010-09-17 | 2012-03-18 | Giuseppe Cristini S P A Sa | Apparecchio portatile di controllo delle condizioni di un nastro circolante in una macchina di fabbricazione della carta |
| ITMI20132213A1 (it) * | 2013-12-27 | 2015-06-28 | Giuseppe Cristini S P A Sa | Apparecchiatura e metodo per controllare le condizioni di almeno un nastro circolante in una macchina di fabbricazione della carta e macchina di fabbricazione della carta comprendente detta apparecchiatura |
| IT201800010875A1 (it) * | 2018-12-06 | 2020-06-06 | S A Giuseppe Cristini S P A | Sistema e metodo di pulizia per pulire un feltro circolante in una macchina per la produzione della carta e macchina per la produzione della carta comprendente detto sistema |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10249385A1 (de) * | 2002-10-23 | 2004-05-06 | Voith Paper Patent Gmbh | Verfahren und Einrichtung zur Überwachung des Zustandes einer Bespannung |
| DE102004052234A1 (de) * | 2004-10-27 | 2006-05-04 | Voith Fabrics Patent Gmbh | Temporäre Eigenschaftsänderung einer Papiermaschinenbespannung |
| US7811417B2 (en) * | 2005-12-30 | 2010-10-12 | Honeywell Asca, Inc. | Cross-machine direction actuators for machine clothing |
| US7597782B2 (en) * | 2006-10-11 | 2009-10-06 | Dubois Chemicals, Inc. | Press stable method of cleaning paper machine press fabrics on-the-run |
| US7938935B2 (en) * | 2007-10-11 | 2011-05-10 | Honeywell Asca Inc. | Infrared measurement of paper machine clothing condition |
| US9481777B2 (en) | 2012-03-30 | 2016-11-01 | The Procter & Gamble Company | Method of dewatering in a continuous high internal phase emulsion foam forming process |
| US11383533B2 (en) | 2018-11-30 | 2022-07-12 | Xerox Corporation | Composite dryer transport belt |
| CN109371736B (zh) * | 2018-12-14 | 2020-12-08 | 玖龙纸业(东莞)有限公司 | 一种白面牛卡纸的制备工艺 |
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| CA985543A (en) * | 1973-01-05 | 1976-03-16 | Scapa Dryers (Canada) Ltd. | Felt cleaner with moisture control for paper making machines |
| US3948721A (en) * | 1974-09-03 | 1976-04-06 | Winheim Karl H | Method and apparatus for wetting the web in paper making machines |
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| NZ194626A (en) | 1979-08-16 | 1984-11-09 | Albany Int Corp | Maintaining permeability of paper machine felts |
| FR2604199B1 (fr) * | 1986-09-18 | 1988-12-09 | Technopap | Nettoyeur de bande continue permeable aux fluides en defilement, en particulier nettoyeur de toile pour machine a papier, et machines equipees d'un tel nettoyeur. |
| GB8903357D0 (en) | 1989-02-14 | 1989-04-05 | Morley Michael J | Improvements in and relating to shower installations for paper making machines |
| FI903349A7 (fi) * | 1990-07-03 | 1992-01-04 | Tamfelt Oy Ab | Mittauslaite huovan kunnon mittaamiseksi |
| FI94178C (fi) * | 1992-04-07 | 1995-07-25 | Tamfelt Oy Ab | Mittauslaite paperikoneen huovan kunnon mittaamiseksi |
| DE4305493A1 (de) * | 1993-02-23 | 1994-08-25 | Voith Gmbh J M | Saugvorrichtung zum Besaugen eines endlosen Bandes mit selbstjustierender Sauglänge |
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| GB9500109D0 (en) * | 1995-01-05 | 1995-03-01 | Scapa Group Plc | Apparatus for cleaning papermachine clothing |
| US5725737A (en) * | 1996-09-18 | 1998-03-10 | Pulp And Paper Research Institute Of Canada | Apparatus for the detection of holes and plugged spots |
| FI102303B (fi) * | 1997-04-10 | 1998-11-13 | Ecopump Oy | Menetelmä paperikoneen tai vastaavan kudosten pesemiseksi |
| DE19860567A1 (de) | 1997-06-25 | 2000-06-29 | Voith Sulzer Papiermasch Gmbh | Verfahren und 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 |
-
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- 2001-01-18 DE DE10102199A patent/DE10102199A1/de not_active Withdrawn
- 2001-10-26 EP EP01125586A patent/EP1225270B1/de not_active Expired - Lifetime
- 2001-10-26 AT AT01125586T patent/ATE342397T1/de active
- 2001-10-26 DE DE50111190T patent/DE50111190D1/de not_active Expired - Lifetime
- 2001-12-31 US US10/032,090 patent/US6716316B2/en not_active Expired - Fee Related
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2002
- 2002-01-17 CA CA2368330A patent/CA2368330C/en not_active Expired - Fee Related
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1516954A3 (de) * | 2003-09-19 | 2006-03-29 | Voith Paper Patent GmbH | Vorrichtung und Verfahren zur Beurteilung der Beschaffenheit mindestens eines umlaufenden Bandes |
| CN103328721B (zh) * | 2010-09-17 | 2015-11-25 | S.A.朱塞佩克里斯蒂尼有限公司 | 用于控制造纸机中的循环带的状况的手持设备 |
| ITMI20101699A1 (it) * | 2010-09-17 | 2012-03-18 | Giuseppe Cristini S P A Sa | Apparecchiatura e metodo di controllo delle condizioni di un nastro circolante in una macchina di fabbricazione della carta |
| ITMI20101698A1 (it) * | 2010-09-17 | 2012-03-18 | Giuseppe Cristini S P A Sa | Apparecchio portatile di controllo delle condizioni di un nastro circolante in una macchina di fabbricazione della carta |
| WO2012035521A1 (en) * | 2010-09-17 | 2012-03-22 | S.A. Giuseppe Cristini S.P.A. | Hand-held apparatus for controlling the condition of a circulating band in a papermaking machine |
| CN103328721A (zh) * | 2010-09-17 | 2013-09-25 | S.A.朱塞佩克里斯蒂尼有限公司 | 用于控制造纸机中的循环带的状况的手持设备 |
| US8778141B2 (en) | 2010-09-17 | 2014-07-15 | S.A. Giuseppe Cristini S.P.A. | Hand-held apparatus for controlling the condition of a circulating band in a papermaking machine |
| ITMI20132213A1 (it) * | 2013-12-27 | 2015-06-28 | Giuseppe Cristini S P A Sa | Apparecchiatura e metodo per controllare le condizioni di almeno un nastro circolante in una macchina di fabbricazione della carta e macchina di fabbricazione della carta comprendente detta apparecchiatura |
| WO2015097682A1 (en) * | 2013-12-27 | 2015-07-02 | S.A. Giuseppe Cristini S.P.A. | Apparatus and method for controlling the conditions of at least one band circulating in a paper making machine and paper making machine comprising said apparatus |
| US10132035B2 (en) | 2013-12-27 | 2018-11-20 | S.A. Giuseppe Cristini S.P.A. | Method for controlling the conditions of at least one band circulating in a paper making machine |
| IT201800010875A1 (it) * | 2018-12-06 | 2020-06-06 | S A Giuseppe Cristini S P A | Sistema e metodo di pulizia per pulire un feltro circolante in una macchina per la produzione della carta e macchina per la produzione della carta comprendente detto sistema |
| EP3663463A1 (de) * | 2018-12-06 | 2020-06-10 | S.A. Giuseppe Cristini S.p.A. | Reinigungssystem und -verfahren zur reinigung eines in einer papierherstellungsmaschine zirkulierenden bandes und papierherstellungsmaschine mit besagtem system |
| US11613847B2 (en) | 2018-12-06 | 2023-03-28 | S.A. Giuseppe Cristini S.P.A. | Cleaning system and method for cleaning a band circulating in a paper making machine and paper making machine comprising said system |
Also Published As
| Publication number | Publication date |
|---|---|
| EP1225270B1 (de) | 2006-10-11 |
| CA2368330A1 (en) | 2002-07-18 |
| EP1225270A3 (de) | 2003-08-27 |
| DE10102199A1 (de) | 2002-08-01 |
| DE50111190D1 (de) | 2006-11-23 |
| US6716316B2 (en) | 2004-04-06 |
| ATE342397T1 (de) | 2006-11-15 |
| CA2368330C (en) | 2010-03-23 |
| US20020129914A1 (en) | 2002-09-19 |
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