EP0520145B1 - Dispositif pour l'élimination de la poussière - Google Patents

Dispositif pour l'élimination de la poussière Download PDF

Info

Publication number
EP0520145B1
EP0520145B1 EP92105220A EP92105220A EP0520145B1 EP 0520145 B1 EP0520145 B1 EP 0520145B1 EP 92105220 A EP92105220 A EP 92105220A EP 92105220 A EP92105220 A EP 92105220A EP 0520145 B1 EP0520145 B1 EP 0520145B1
Authority
EP
European Patent Office
Prior art keywords
material web
openings
guide element
disturbance
extraction chamber
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.)
Expired - Lifetime
Application number
EP92105220A
Other languages
German (de)
English (en)
Other versions
EP0520145A1 (fr
Inventor
Ernst August Hahne
K.H. Sternemann
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Eltex Elektrostatik GmbH
Original Assignee
Eltex Elektrostatik GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Eltex Elektrostatik GmbH filed Critical Eltex Elektrostatik GmbH
Publication of EP0520145A1 publication Critical patent/EP0520145A1/fr
Application granted granted Critical
Publication of EP0520145B1 publication Critical patent/EP0520145B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F23/00—Devices for treating the surfaces of sheets, webs, or other articles in connection with printing
    • B41F23/002—Devices for treating the surfaces of sheets, webs, or other articles in connection with printing cleaning devices for sheets or webs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B5/00—Cleaning by methods involving the use of air flow or gas flow
    • B08B5/04—Cleaning by suction, with or without auxiliary action
    • B08B5/043—Cleaning travelling work
    • B08B5/046—Cleaning moving webs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B6/00—Cleaning by electrostatic means

Definitions

  • the invention relates to a device for removing dust that adheres to sheet-like material webs - for example paper, plastic or textile webs - or plates and endless webs.
  • a device for removing dust is already known (DE-39 14 310 A1) which serves to pick up and remove the dust accumulating in the area of turning bars.
  • the known device has, among other things, a discharge electrode, suction chambers and a guide element over which the material web is moved.
  • the guide element is a turning bar in the known device.
  • the suction chambers provided for this purpose are arranged in a semicircle around the turning bar and absorb the dust released by the blowing air of the turning bar and the centripetal acceleration.
  • the paper web is provided with a suction nozzle, as well as discharge electrodes which reduce electrostatic adhesive forces by electrostatically neutralizing the dust particles and the product web by a corresponding supply of positive and negative ions in the surrounding air.
  • a disadvantage of the known device which has proven itself in general, however, is that, owing to the arc-shaped suction chambers, it can only be arranged on turning bars in the deflection area of the material web and only achieves a dedusting effect which no longer meets the increased requirements for dedusting.
  • EP-A-0 245 526 discloses a device for removing dust that adheres to sheet-like material webs (1), for example paper, plastic or textile webs, or plates and endless webs, with at least one first discharge electrode (10) and with one first suction chamber (13), blowing openings (11) being arranged on the side of the material web (1) facing the suction chambers (13).
  • sheet-like material webs (1) for example paper, plastic or textile webs, or plates and endless webs
  • the invention is therefore based on the object of providing a device for removing dust according to the preamble of the main claim, in which the dedusting effect is increased compared to the known device.
  • the object underlying the invention is achieved in a device according to the preamble of the main claim (DE-39 14 310 A1) by its characterizing features.
  • first fault openings are arranged on the side of the material web facing the suction chambers in the direction of material web movement behind the first discharge electrode and in front of the first suction chamber.
  • the additional air is sucked into the gap between the suction chamber and the opposite guide element, so that faults are generated in the air layer on the material web, a larger proportion of dust is entrained and taken up by the first suction chamber arranged behind the first fault openings in the material web movement direction can.
  • the fault openings reduce the risk of the product web being sucked in.
  • a suitable polarity of the discharge electrode, the guide element and the first suction chamber and, if appropriate, further suction chambers the dust removal is further improved. It is particularly advantageous to place the discharge electrode at a high DC voltage potential with + and - at alternating tips or at a rectangular AC voltage, the guide element being grounded at the same time.
  • the arrangement of second fault openings behind the first suction chamber increases the dedusting effect, in particular when the air flow sucked in through the second fault openings and the gap is directed at the area of the material surface in which the first suction chamber is arranged. Because of this air flow, an impingement flow is built up against the air layer arranged closely above the material web surface, which in cooperation with the negative pressure emanating from the first suction chamber brings about a particularly good dedusting, which can be caused by the flow separating from the material web surface.
  • a second suction chamber sucks off further dust particles and thereby increases the dedusting effect.
  • third fault openings can also be arranged, which are arranged behind the second suction chamber in the direction of material movement.
  • a first gap which is formed between the first fault openings and the guide element, is tapered.
  • the flow velocity in the direction of material web movement is increased, so that a higher proportion of dust particles is entrained.
  • a comparable effect is achieved if the second gap arranged between the second fault openings and the guide element is widened in the direction of material web movement. This is because the air flow takes place in this area against the direction of material movement due to the suction effect of the suction chambers.
  • the guide element can either be a turning bar known per se or a deflection roller, but a plate with an essentially flat surface can also be provided.
  • a plate with an essentially flat surface can also be provided.
  • a guide element can also be dispensed with for material webs with a sufficiently high inherent rigidity. There is then a gap between the fault openings and the material web. In any case, it is possible to provide blow holes in the guide element to reduce friction between the material web and the guide element.
  • the second suction chamber can be arranged such that the dust particles detaching tangentially from the material web due to the deflection of the material web are taken up by the second suction chamber.
  • a maximum linear amplification of the two effects is to be achieved by a linear alignment of the force effect due to the suction and the effect of the inertia of the dust particles.
  • the alignment of the first fault openings is such that the air flow passing through them is directed essentially perpendicular to the surface of the material web.
  • the arrangement of the first suction chamber in the area in which the detachment of a boundary layer formed by air on the material web surface is possible also promotes the dedusting effect. For this reason, the angle alpha at which the first suction chamber sucks in the air should also be adapted to the angle of a separation flow line.
  • FIG. 1 A preferred first embodiment of the device according to the invention is shown in FIG. 1.
  • a guide element 7 is designed as a cylinder.
  • the cylinder is shown in a section perpendicular to its longitudinal extent, with first and second suction chambers 4, 5 and first and third fault openings 6, 14 extending essentially parallel to the cylinder axis.
  • a material web 2 is partially guided around the cylinder and is moved essentially in the circumferential direction of the cylinder.
  • a first and a second suction chamber 4, 5, also shown in section, and first and third fault openings 6, 14 open into a common surface.
  • the fault openings are suitable arrangements or rows of spaced-apart bores or breakthroughs, their spacing and air passage cross section and the associated amount of air which disturbs stationary flow.
  • first discharge openings 6, then the first suction chamber 4, then the second suction chamber 5 and finally third fault openings 14 are arranged behind a discharge electrode 3 in the direction of the material web.
  • This arrangement effects the supply air flow to the first and the second suction chamber illustrated by the arrows 13 in FIG. 1 4, 5 out.
  • a first gap 9 formed by first fault openings 6 and the guide element 7 or the material web is designed in such a way that it tapers in the direction of material movement, as a result of which the air sucked therein is accelerated towards the first suction chamber 4. It should be noted that the air drawn in through the suction chambers reaches flow velocities of more than 50 m / s in the gap, so that even normal material web speeds of 15 m / s can be neglected.
  • the first suction chamber 4 is arranged so that it sucks in the air at an angle ⁇ from the surface of the material web.
  • the angle ⁇ is acute to the surface of the web guide element 7 and to the web movement direction.
  • the angle ⁇ is approximately 30 ° to the tangent to the surface of the material web guide element 7.
  • the second suction chamber 5, in contrast, is arranged so that it sucks the air at an angle ⁇ to the tangent to the material web surface, the angle ⁇ being acute to the surface of the material web guide element 7 and to the material web guiding direction and is dimensioned such that the dust particles detached from the material web surface by inertial forces and flow effects are maximally accelerated.
  • the deflection of the material web on the guide element also causes the product to be broken open and thus to release bound dust particles.
  • the second suction chamber 5 is therefore arranged in the area in which the inertial forces which act on the guide element 7 due to the material web deflection.
  • the third fault openings 14 cause a comparable disturbance of the parallel flow caused by the first fault openings 6 and are arranged such that the air flow emanating from the third fault openings 14 is directed at the area of the material web guiding element 7 in which the second suction chamber 5 is arranged.
  • a particularly good dedusting is achieved by the interaction of the various fault openings 6, 14 and the suction chambers 4, 5 and the discharge electrode 3.
  • fine dust with particle sizes smaller than 25 »m can be removed. It is also contemplated to design the guide element 7 as a turning bar.
  • the second embodiment of the device according to the invention shown in a section perpendicular to the longitudinal extent of the device in FIG. 2 has first fault openings 6, the first suction chamber 4, the guide element 7 and the discharge electrode 3.
  • the material web 2 is guided between the discharge electrode 3, the first fault openings 6 and the suction chamber 4, on the one hand, and the guide element 7, which is designed as an essentially flat plate, on the other hand.
  • the movement of the material web takes place at an angle, preferably at right angles to the longitudinal extent of the device, the longitudinal extent of the device being predetermined by the longitudinal extent of the fault openings of the suction chambers and the discharge electrode.
  • the discharge electrode 3 is arranged in front of the first fault openings 6 in the material web movement direction.
  • the first suction chamber 4 is arranged in the material web movement direction behind the first fault openings 6 in such a way that it sucks in the air from the material web surface at an angle alpha. This angle alpha is dimensioned such that the dust particles detached from the surface of the material web by flow effects and the electrostatic neutralization are additionally accelerated by the suction effect of the extracted air.
  • a third embodiment of the device for removing dust according to the invention is shown in a section in FIG. 3 and, in addition to the discharge electrode 3, the first fault openings 6 and the first suction chamber 4, has second fault openings 10 through which air additionally flows against the material web surface.
  • the guide element 7 is arranged opposite the first fault openings 6, the first suction chamber 4 and the second fault openings 10, the material web 2 being located between them. From the drawing it can be seen that on the one hand the first fault openings 6 with the material web or the guide element 7 the first gap 9 and, on the other hand, the second fault openings 10 with the material web 2 or the guide element 7 form the second gap 11. Both columns 9, 11 have an essentially unchanged cross section.
  • the first fault openings 6 are arranged such that they point essentially perpendicular to the surface of the material web.
  • very extensive dedusting is achieved, in particular also for dust particles below 25 »m.
  • the first suction chamber 4 is arranged in such a way that it accelerates the dust particles, which are released from the material web surface by flow effects and the electrostatic neutralization, in order to be able to suction them safely.
  • Fig. 4 shows a fourth embodiment of the device according to the invention.
  • the first fault openings 6, the first suction chamber 4 located behind them and the second fault openings 10 located behind them open into a common surface.
  • the guide element 7 is located opposite this surface. While the guide element 7 is embodied as a substantially flat plate in this embodiment, the common surface is shaped such that the first gap 9 formed by the first fault openings 6 with the guide element 7 is in one another Material movement direction tapers and that the second gap 11 formed by the second fault openings 10 and the guide element 7 widens in the material web movement direction.
  • the first suction chamber 4 is arranged in the region of the smallest cross section of the gaps formed by the first and second fault openings or the common surface and the material web or the guide element 7.
  • the orientation of the first suction chamber 4 and the second fault openings 10 essentially corresponds to the embodiment shown in FIG. 3.
  • a discharge electrode 3 is also provided in this arrangement.
  • the design of the first and second gap 9, 11 ensures that the air that is sucked in by the first suction chamber 4 is accelerated toward the first suction chamber 4.
  • the material web 2 is guided around a cylindrical guide element 7 and is moved in the direction of the arrows M.
  • the first fault openings 6 are located behind the discharge electrode 3, which has alternating positive and negative direct voltage potentials or AC electrodes at their tips.
  • the arrows 13 illustrate the supply air flow in the material web movement direction M upstream of the device in the material web movement direction M and in the material web movement direction M behind the device the material web movement direction M flows.
  • the supply air flow is essentially parallel in front of and behind the device.
  • the disturbances illustrated by the arrows 15 are superimposed on this supply air flow.
  • the first and second fault openings 6, 10 have bores or openings which, among other things, prevent the danger of the material web 2 being drawn in by the suction chamber 4.
  • the suction chamber 4 is located between the first and the second fault openings 6, 10.
  • the discharge electrode 3 neutralizes the electrostatic attractive forces that exist between dust particles and the material web 2. Because the material web 2 is guided around the guide element 7 and because tensile stresses in the material web 2 pretension it in the direction of the guide element 7, it is possible to use a very high suction speed to work even with material webs 2 with low inherent rigidity.
  • FIG. 7 shows a device according to the invention in accordance with the first preferred embodiment, the supply air, which is illustrated by the arrows 13, being supplied through supply air pipes 16.
  • the supply air which is illustrated by the arrows 13, being supplied through supply air pipes 16.
  • This ensures that as little ambient air as possible, which may be contaminated, is sucked in in the case of critical products, for example medical film.
  • a supply of germ-free air can also be made available under certain circumstances by the supply air pipes 16, so that the high purity requirements can be met for many products.
  • the supply air supplied through supply air pipes 16 can, however, also be cleaned fresh air, or the extracted air is filtered and made available again. In the case of larger systems, such an arrangement also makes sense due to the energy balances, since it does not excessively disrupt existing heating and air-conditioning devices.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Cleaning In General (AREA)
  • Replacement Of Web Rolls (AREA)
  • Filtering Of Dispersed Particles In Gases (AREA)
  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
  • Filters For Electric Vacuum Cleaners (AREA)
  • Supply, Installation And Extraction Of Printed Sheets Or Plates (AREA)
  • Inking, Control Or Cleaning Of Printing Machines (AREA)
  • Controlling Rewinding, Feeding, Winding, Or Abnormalities Of Webs (AREA)
  • Paper (AREA)

Claims (13)

  1. Dispositif d'élimination des poussières adhérant, soit à de bandes (2) en forme de films fabriqués, par exemple, en papier, en matière plastique ou en tissu, soit à des plaques ou à des bandes sans fin, comprenant au moins une première électrode de décharge (3) ;
       comprenant au moins une surface dans laquelle aboutit une première chambre d'aspiration (4) disposée dans le sens de l'avancement de la bande (2) ;
       comprenant un élément de guidage (7) de la bande (2) situé vis-à-vis de ladite surface ;
       le sens de l'avancement de la bande étant défini comme le sens dans lequel la première chambre d'aspiration (4) est disposée derrière la première électrode de décharge (3) ;
       caractérisé en ce qu'un premier groupe d'ouvertures de perturbation (6) aménagées dans la surface dans laquelle aboutit la première chambre d'aspiration (4) forme, avec ledit élément de guidage (7), une première fente (9) dans laquelle aboutissent lesdites ouvertures de perturbation ;
       lesdites premières ouvertures de perturbation (6) sont disposées, dans le sens de l'avancement de la bande, derrière la première électrode de décharge (3) et devant la première chambre d'aspiration (4) ;
       le premier groupe d'ouvertures de perturbation (6) est disposé de manière à permettre l'aspiration d'air complémentaire dans la fente (9) par ces ouvertures de perturbation ; et en ce que
       la première chambre d'aspiration est réalisée de sorte qu'elle aspire l'air chargé de poussières à un angle aigu (alpha) par rapport à la surface de l'élément de guidage (7), d'une part, et au sens de l'avancement de la bande, d'autre part.
  2. Dispositif selon la revendication 1, caractérisé en ce qu'un deuxième groupe d'ouvertures de perturbation (10) est disposé, dans le sens de l'avancement de la bande, derrière la première chambre d'aspiration (4) de manière à former une deuxième fente (11) entre le deuxième groupe d'ouvertures de perturbation (10) et l'élément de guidage de bande (7).
  3. Dispositif selon la revendication 2, caractérisé en ce que le deuxième groupe d'ouvertures de perturbation (10) est disposé de sorte que le courant d'air provenant de ce groupe est orienté sur la zone de l'élément de guidage de bande (7) dans lequel est disposée la première chambre d'aspiration (4).
  4. Dispositif selon l'une quelconque des revendications 1 à 3, caractérisé en ce qu'une deuxième chambre d'aspiration (5), vue dans le sens de l'avancement de la bande, est disposée derrière la première chambre d'aspiration (4) pour aspirer l'air au-dessus de l'élément de guidage de bande (7) à un angle aigu (β) par rapport à la surface de l'élément de guidage de bande (7), d'une part, et par rapport au sens de l'avancement de la bande, d'autre part.
  5. Dispositif selon la revendication 4, caractérisé en ce qu'un troisième groupe d'ouvertures de perturbation (14) est disposé derrière la deuxième chambre d'aspiration (5), vu dans le sens de l'avancement de la bande, de sorte que le courant d'air provenant du troisième groupe d'ouvertures de perturbation (14) est orienté sur la zone de l'élément de guidage de bande (7) dans laquelle est disposée la deuxième chambre d'aspiration (5) et dans laquelle le troisième groupe d'ouvertures de perturbation (14) constitue la deuxième fente (11) avec l'élément de guidage de bande (7).
  6. Dispositif selon l'une quelconque des revendications 1 à 5, caractérisé en ce que la première fente (9) se rétrécit entre le premier groupe d'ouvertures de perturbation (6) et l'élément de guidage (7), vu dans le sens de l'avancement de la bande.
  7. Dispositif selon l'une quelconque des revendications 2 à 5, caractérisé en ce que, entre le deuxième et le troisième groupe d'ouvertures de perturbation (10, 14) d'une part, et l'élément de guidage de bande (7) d'autre part, la deuxième fente (11) s'élargit dans le sens de l'avancement de la bande.
  8. Dispositif selon l'une quelconque des revendications 1 à 7, caractérisé en ce que l'élément de guidage (7) comprend des trous de soufflage permettant de réduire le frottement au niveau de l'élément de guidage (7).
  9. Dispositif selon l'une quelconque des revendications 1 à 8, caractérisé en ce que l'élément de guidage (7) est une plaque avec une surface sensiblement plane.
  10. Dispositif selon l'une quelconque des revendications 1 à 8, caractérisé en ce que l'élément de guidage (7) est un cylindre.
  11. Dispositif selon l'une quelconque des revendications 1 à 10, caractérisé en ce que le courant d'air passant par le premier groupe d'ouvertures de perturbation (6) est orienté dans la direction sensiblement perpendiculaire par rapport à la surface de l'élément de guidage (7).
  12. Dispositif selon l'une quelconque des revendications 1 à 11, caractérisé en ce que l'angle aigu (alpha) avec lequel la première chambre d'aspiration (4) aspire l'air est de 30° environ par rapport à la tangente de la surface de l'élément de guidage (7).
  13. Dispositif selon l'une quelconque des revendications 1 à 12, caractérisé en ce que la première et la deuxième chambre d'aspiration (4, 5), ainsi que les ouvertures de perturbation (6, 10) aboutissent dans une surface commune constituant, avec la surface de l'élément de guidage (7), une fente qui, vue dans le sens de l'avancement de la bande, est d'abord rétrécie, puis élargie.
EP92105220A 1991-06-25 1992-03-26 Dispositif pour l'élimination de la poussière Expired - Lifetime EP0520145B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4120973A DE4120973A1 (de) 1991-06-25 1991-06-25 Vorrichtung zum abfuehren von staub
DE4120973 1991-06-25

Publications (2)

Publication Number Publication Date
EP0520145A1 EP0520145A1 (fr) 1992-12-30
EP0520145B1 true EP0520145B1 (fr) 1995-12-13

Family

ID=6434711

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92105220A Expired - Lifetime EP0520145B1 (fr) 1991-06-25 1992-03-26 Dispositif pour l'élimination de la poussière

Country Status (4)

Country Link
EP (1) EP0520145B1 (fr)
JP (1) JPH05306050A (fr)
AT (1) ATE131439T1 (fr)
DE (2) DE4120973A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10018010A1 (de) * 2000-04-11 2001-10-25 Eltex Elektrostatik Gmbh Vorrichtung zum Entstauben
CN102513308A (zh) * 2006-05-02 2012-06-27 株式会社Trinc 除尘器

Families Citing this family (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI94271C (fi) * 1992-11-03 1995-08-10 Valmet Paper Machinery Inc Menetelmä telojen puhdistamiseksi ja telanpuhdistuslaite
JP2820599B2 (ja) * 1993-08-31 1998-11-05 株式会社伸興 除塵装置
FI111475B (fi) * 1997-09-24 2003-07-31 Metso Paper Inc Menetelmä ja sovitelma sumun ja pölyn hallitsemiseksi paperin ja kartongin valmistuksessa ja jälkikäsittelyssä
DE19825599A1 (de) * 1998-06-09 1999-12-16 Focke & Co Verpackungsmaschine, insbesondere für Zigaretten
FI105052B (fi) 1998-07-08 2000-05-31 Valmet Corp Menetelmä paperin valmistamiseksi, sovitelma menetelmän toteuttamiseksi ja menetelmän avulla valmistettu paperituote
DE10211309A1 (de) * 2002-03-13 2003-09-25 Heidelberger Druckmasch Ag Schneidvorrichtung mit Entstaubungsvorrichtung im Falzapparat einer bahnverarbeitenden Druckmaschine
US6868785B2 (en) 2002-03-13 2005-03-22 Goss International Corporation De-Duster for a moving printing material web and cutting device, folder and printing press having the de-duster
DE10252377B4 (de) * 2002-11-15 2006-11-09 Man Roland Druckmaschinen Ag Verarbeitungsmaschine mit einer berührungslos arbeitenden Entstaubungsvorrichtung
DE10255382A1 (de) 2002-11-25 2004-06-03 Sipra Patententwicklungs- Und Beteiligungsgesellschaft Mbh Textilmaschine mit wenigstens einer Entstaubungsvorrichtung
WO2006029471A1 (fr) * 2004-09-17 2006-03-23 Synergetic Proprietary Limited Appareil et procede de depoussierage
DE102005055312A1 (de) * 2005-11-21 2007-06-06 Hildebrand Systeme Gmbh Absaugvorrichtung zur Entfernung von bei Bearbeitungen an bewegten Materialbahnen entstehenden Partikeln
DE102007052573B4 (de) * 2007-11-03 2015-04-09 Manroland Web Systems Gmbh Feuchtwerk
DE102008046254A1 (de) 2008-09-08 2010-03-11 Giesecke & Devrient Gmbh Wertdokumentbearbeitungsvorrichtung und ein Verfahren zur Reduktion von Staub in der Wertdokumentbearbeitungsvorrichtung
CN102247959B (zh) * 2011-03-17 2012-11-21 常熟市群英针织制造有限责任公司 毛绒织物除尘机
US8657998B2 (en) 2011-06-17 2014-02-25 The Procter & Gamble Company Method and apparatus for particulate removal from moving paper webs
US9108229B2 (en) 2011-06-17 2015-08-18 The Procter & Gamble Company Method and apparatus for particulate removal from moving paper webs
DE102016119055A1 (de) * 2016-10-07 2018-04-12 Ideego Gmbh Reinigungsvorrichtung für eine Oberfläche eines Zylinders einer Druck- und/oder Kopiermaschine
BR102021003880A2 (pt) * 2020-03-03 2021-09-14 Canalair Service S.R.L. Sistema para succionar poeiras e fibrilas
IT202000004462A1 (it) * 2020-03-03 2021-09-03 Canalair Service S R L Sistema di aspirazione di polveri e fibrille da teli in movimento
DE102021119691A1 (de) 2021-07-29 2023-02-02 Voith Patent Gmbh Staubabsaugung am Rollenschneider

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4454621A (en) * 1982-01-15 1984-06-19 Static Inc. Sheet and web cleaner
ATE42504T1 (de) * 1986-04-29 1989-05-15 Eltex Elektrostatik Gmbh Sonde fuer die entstaubung von bewegten bahnen, vorzugsweise aus papier.
DE3914310A1 (de) * 1989-04-29 1990-10-31 Eltex Elektrostatik Gmbh Vorrichtung zum abfuehren des staubes in falzapparaten fuer druckmaschinen

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10018010A1 (de) * 2000-04-11 2001-10-25 Eltex Elektrostatik Gmbh Vorrichtung zum Entstauben
DE10018010C2 (de) * 2000-04-11 2003-10-16 Eltex Elektrostatik Gmbh Vorrichtung zum Entstauben swie deren Verwendung
CN102513308A (zh) * 2006-05-02 2012-06-27 株式会社Trinc 除尘器

Also Published As

Publication number Publication date
EP0520145A1 (fr) 1992-12-30
DE59204649D1 (de) 1996-01-25
DE4120973A1 (de) 1993-01-07
ATE131439T1 (de) 1995-12-15
JPH05306050A (ja) 1993-11-19

Similar Documents

Publication Publication Date Title
EP0520145B1 (fr) Dispositif pour l'élimination de la poussière
EP0789635B1 (fr) Procede et dispositif pour l'enlevement de particules de poussiere sur une bande de materiau en mouvement relatif
DE69910665T2 (de) Modulare Luftdüsenanordnung zum Transport blattförmigen Guts
EP0780332B1 (fr) Dispositif pour agir sur des feuilles dans un appareil de sortie de feuilles
DE3914310C2 (fr)
DE20321046U1 (de) Druckbahnreiniger
DE10211309A1 (de) Schneidvorrichtung mit Entstaubungsvorrichtung im Falzapparat einer bahnverarbeitenden Druckmaschine
EP0755887A2 (fr) Procédé et dispositif pour freiner pneumatiquement des feuilles dans le dispositif de décharge d'une machine rotative d'impression de feuilles
EP1004436A1 (fr) Dispositif de recueil d'aérosols dans un système de mouillage par pulvérisation
DE10108234A1 (de) Längsschneideinrichtung für eine materialbahn und Verfahren zur Reinigung der Längsschneideinrichtung
DE3711777C2 (fr)
DE69102266T2 (de) Vorrichtung zur reinigung vor bewegten bahnen.
CH660332A5 (en) Web-fed offset rotary printing machine
DE3942422A1 (de) Verfahren und vorrichtung zur elektrostatischen oberflaechenentladung und entstaubung von werkstuecken
DE19732235A1 (de) Druckmaschine mit einer Einrichtung zum Reinigen der Druckträger
EP1268092B1 (fr) Dispositif pour enlever la poussiere d'une bande de materiau
CH623084A5 (fr)
DE2213276C3 (de) Naßabscheider für in einem Gasstrom suspendierte Teilchen
DE2139300A1 (de) Verfahren und Vorrichtung zur Erzeu gung geladener Flussigkeitstropfchen in einem elektrostatischen Abscheider
DE3507936C2 (de) Verfahren zum Entfernen von Fließmittelfilmen, die einem translatorisch bewegten Band anhaften und Vorrichtung zur Durchführung des Verfahrens
DE4313150C2 (de) Vorrichtung zum Vereinzeln von flachen Sendungen
DE3737674C2 (fr)
DE2509020C3 (de) Vorrichtung zum Abtrennen einer Papierbahn vom Langsieb einer Papierherstellungsmaschine
DE10018010C2 (de) Vorrichtung zum Entstauben swie deren Verwendung
EP1125646A1 (fr) Procédé et dispositif pour enlever des particules de bandes

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE CH DE DK ES FR GB GR IT LI LU MC NL PT SE

RBV Designated contracting states (corrected)

Designated state(s): AT BE CH DE FR GB IT LI LU NL SE

17P Request for examination filed

Effective date: 19930603

17Q First examination report despatched

Effective date: 19930930

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE CH DE FR GB IT LI LU NL SE

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRE;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED.SCRIBED TIME-LIMIT

Effective date: 19951213

Ref country code: GB

Effective date: 19951213

Ref country code: NL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 19951213

Ref country code: BE

Effective date: 19951213

Ref country code: FR

Effective date: 19951213

REF Corresponds to:

Ref document number: 131439

Country of ref document: AT

Date of ref document: 19951215

Kind code of ref document: T

REF Corresponds to:

Ref document number: 59204649

Country of ref document: DE

Date of ref document: 19960125

REG Reference to a national code

Ref country code: CH

Ref legal event code: NV

Representative=s name: DIPL.-ING. MANFRED SAEGER PATENTANWALT

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Effective date: 19960313

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: CH

Payment date: 19960325

Year of fee payment: 5

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AT

Effective date: 19960326

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19960331

EN Fr: translation not filed
NLV1 Nl: lapsed or annulled due to failure to fulfill the requirements of art. 29p and 29m of the patents act
GBV Gb: ep patent (uk) treated as always having been void in accordance with gb section 77(7)/1977 [no translation filed]

Effective date: 19951213

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: CH

Effective date: 19970331

Ref country code: LI

Effective date: 19970331

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20010507

Year of fee payment: 10

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20021001