EP0745158B1 - Dampfblaskasten - Google Patents

Dampfblaskasten Download PDF

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Publication number
EP0745158B1
EP0745158B1 EP95905553A EP95905553A EP0745158B1 EP 0745158 B1 EP0745158 B1 EP 0745158B1 EP 95905553 A EP95905553 A EP 95905553A EP 95905553 A EP95905553 A EP 95905553A EP 0745158 B1 EP0745158 B1 EP 0745158B1
Authority
EP
European Patent Office
Prior art keywords
steam
blower box
web
box according
panel
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
EP95905553A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0745158A1 (de
Inventor
Dieter Müller
Markus Oechsle
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.)
Voith Patent GmbH
Original Assignee
Voith Sulzer Papiermaschinen 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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=27425253&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0745158(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Voith Sulzer Papiermaschinen GmbH filed Critical Voith Sulzer Papiermaschinen GmbH
Priority to AT95905553T priority Critical patent/ATE174395T1/de
Publication of EP0745158A1 publication Critical patent/EP0745158A1/de
Application granted granted Critical
Publication of EP0745158B1 publication Critical patent/EP0745158B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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
    • D21F7/008—Steam showers

Definitions

  • the invention relates to a steam blow box for application steam on a running web of material, e.g. towards one draining and through the press section one Paper making machine running paper web.
  • a steam blow box for application steam on a running web of material, e.g. towards one draining and through the press section one Paper making machine running paper web.
  • On the Reference DE 41 25 062 A1 is referred to.
  • Such a steam box is mainly used in the Papermaking used. It is used with the help of the material vapor applied the temperature of the Material web to increase the drainage performance of the To increase the press section.
  • the steam blower box offers the possibility of different sections Steam application to the moisture cross profile of the material web influence.
  • sectional Chambers exiting steam through valves regulated, which are arranged within the steam blow box.
  • Each correction zone is with a separate, in general pneumatically controlled valve.
  • a disadvantage is that contamination of the zone chambers of the Steam blower box (e.g. caused by the ingress of Fibrous particles) in the known constructions only is to be eliminated with great expenditure of time and money.
  • the invention has for its object a device Specify the type described at the beginning, when cleaning and Maintenance of the steam blower box possible with less effort is than before.
  • the steam is transferred from one main steam line to one Steam distributor led out of the paper machine is arranged, preferably next to the paper machine, e.g. on the drive side or e.g. in the basement, at least on one Easily accessible place during machine operation.
  • the individual control elements are on this steam distributor (Control valves) arranged. Every single zone chamber of the Steam box is over a separate sectional Steam line connected to the corresponding control valve.
  • the parts of the sectional attached to the steam box Steam lines end (against the flow direction) outside of steam blowing on a plate, e.g. Carrier plate which is rigidly connected to the steam box.
  • Flexible lines between the carrier plate and the Control valves serve to absorb the swiveling movement and to compensate for any thermal longitudinal expansion of the steam box.
  • the valve actuators are controlled electric motor.
  • the steam blow box 48 consists of a self-supporting Stainless steel construction; it stretches on the coat of a Paper web P leading roller across the web running direction the paper machine, from the driver side to the drive side TS.
  • Fig. 1 is only the drive end of the steam box shown.
  • the lower Support frame 1, 1 'and an upper support frame 2 are over Side walls 8 and 9 connected together. Because of this design optimal lateral stability is achieved.
  • the support frame 1, 1 'and 2 and the side walls 8 and 9 delimit a middle one Chamber 15.
  • a tube bundle extends through this, consisting of a variety of steam lines 4, of which each opens into a zone chamber 3, thereby the to pass passing paper web P with "steam I".
  • a steam channel 13 opens into the lower chamber 12.
  • steam II the preheating steam flowing in here passes through (“steam II") the holes 10 and 14 in the chamber 15, the tube bundle 4th includes.
  • This steam II passes through the holes 16 finally in the chamber 33 of the support frame 2.
  • This Steam II is the inflowing Steam II first through the chamber 12 from the drive side Leader led and then enters the chamber 15.
  • This Steam II the temperature of which is higher than steam I within the sectional steam lines 4, ensures that even when the valves are closed there is no cooling of the sectional steam lines 4 and the individual zone chambers 3 is done. This means that achieved that in the Steam lines and little or no in the zone chambers Condensate forms. It will also be a strict one Separation between steam I and steam II ensured.
  • the individual zone chambers 3 are on the lower support frame 1, 1 'arranged. They are over the side panels 19 and 17 fixed. A separate one opens into the zone chambers Steam pipe 4.
  • Each zone chamber contains one Perforated sheet insert 20 with perforated sheets 34, the free Cross-sectional area increases towards the steam outlet. This Perforated plates 34 cause the steam I within the individual zones are evenly across the zone width distributed.
  • the individual perforated sheet inserts 20 can Be removed for maintenance purposes (Fig. 3).
  • the individual zone chambers 3 are separated by a (according to FIG. 1) common steam outlet plate 22 limited. This is with screwed the sheet metal parts 19 and 1, or over Guide rails 44 fixed so that it is for cleaning purposes is easily dismantled. It has several in the longitudinal direction rows of blowing openings 32 arranged one behind the other. 4 and 5 is one on each perforated sheet insert 20 ' own steam outlet plate 22 'attached. The direction of the Steam can escape perpendicular to the paper direction or 2 be inclined so that the steam I of the incoming railway flows against. Wherever there is condensation from Steam could take place are drain openings 11, 18 provided with the associated drainage channels 24, 25, 26, 27.
  • the drive end of the steam box 48 is at rest Fig. 1 by means of a carrier plate 28 which is an extension e.g. of the lower support frame 1, 1 '(Fig. 2) can be slidable on a frame 51.
  • the steam lines 4 are against the steam flow direction on the drive side Extended at the end of the steam box; their inflow ends are fixed, for example, with the support plate 28 connected.
  • a regulating body designated overall by R is arranged and embraced laterally outside the paper machine for each zone chamber 3 a control valve 35 with a drive Stepper motor M.
  • the connection from the control valves 35 to Carrier plate 28 take lines 29, at least are partially designed as flexible lines.
  • the Outflow ends 29 'of a number of flexible lines are on a so-called supply plate 30 attached.
  • This Supply plate is with quick release 31 with Carrier plate 28 connected. About these quick release elements if the steam box is removed, a quick one Uncoupling possible.
  • the control valves 35 are designed so that several side by side on a steam distribution channel 36 can be summarized. Each steam distribution channel 36 Steam supplied from a main steam line H.
  • the removable steam outlet plate 22 has, as already mentioned, several arranged one behind the other in the longitudinal direction Rows of blow holes 32 on.
  • the direction of the Steam outlet is opposite to the paper flow direction and inclined. This will improve the mixing of the steam achieved with the retracted air boundary layer, which the Efficiency of steam condensation on the Paper web surface increased.

Landscapes

  • Paper (AREA)
  • Drying Of Solid Materials (AREA)
EP95905553A 1994-01-18 1995-01-19 Dampfblaskasten Expired - Lifetime EP0745158B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT95905553T ATE174395T1 (de) 1995-01-19 1995-01-19 Dampfblaskasten

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE4401220A DE4401220C1 (de) 1994-01-18 1994-01-18 Dampfblaskasten
PCT/DE1995/000061 WO1996022421A1 (de) 1994-01-18 1995-01-19 Dampfblaskasten
BR9507116A BR9507116A (pt) 1994-01-18 1995-01-19 Caixa de bolhas de vapor
US08/710,484 US5752324A (en) 1994-01-18 1996-09-18 Steam blower box

Publications (2)

Publication Number Publication Date
EP0745158A1 EP0745158A1 (de) 1996-12-04
EP0745158B1 true EP0745158B1 (de) 1998-12-09

Family

ID=27425253

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95905553A Expired - Lifetime EP0745158B1 (de) 1994-01-18 1995-01-19 Dampfblaskasten

Country Status (5)

Country Link
US (1) US5752324A (pt)
EP (1) EP0745158B1 (pt)
BR (1) BR9507116A (pt)
DE (1) DE4401220C1 (pt)
WO (1) WO1996022421A1 (pt)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19542831C1 (de) * 1995-11-17 1997-04-03 Voith Sulzer Papiermasch Gmbh Blaskasten
DE29809466U1 (de) 1998-05-26 1998-08-06 Voith Sulzer Papiertechnik Patent GmbH, 89522 Heidenheim Dampfblaskasten
FI4283U1 (fi) 1999-09-06 1999-12-31 Neles Automation Oy Höyrylaatikko
FI107065B (fi) * 1999-10-21 2001-05-31 Metso Paper Automation Oy Paperikoneen höyrylaatikko
FI111092B (fi) * 2001-06-26 2003-05-30 Metso Automation Oy Menetelmä kuivatuskaasun puhaltamiseksi paperirainaa vasten ja paperikoneen päällepuhalluskuivatin
US7475496B2 (en) 2002-05-07 2009-01-13 Voith Paper Patent Gmbh Steam blower box unit
DE10220377A1 (de) * 2002-05-07 2003-11-20 Voith Paper Patent Gmbh Dampfblaskasteneinheit
US7513975B2 (en) * 2003-06-25 2009-04-07 Honeywell International Inc. Cross-direction actuator and control system with adaptive footprint
DE10352980B4 (de) * 2003-11-13 2006-10-12 V.I.B. Systems Gmbh Dampfblaskasten
DE10353297A1 (de) * 2003-11-14 2005-06-16 Voith Paper Patent Gmbh Blaselement
CA2506235C (en) * 2004-05-03 2013-12-10 Transphase Technology Ltd. Steam box
US10669727B2 (en) 2015-09-16 2020-06-02 Owens Corning Intellectual Capital, Llc Loosefill insulation blowing machine
CA3010853C (en) 2016-01-28 2024-02-20 Robert James Seymour Fibrous web dewatering apparatus and method
CA3095666A1 (en) 2019-10-15 2021-04-15 Ibs Of America A system, control system, an inspection system, and a method of controlling and cleaning a steam box
DE102020110544A1 (de) * 2020-04-17 2021-10-21 Voith Patent Gmbh Dampfblaskasten mit Dampfkonditionierung

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3945570A (en) * 1974-12-10 1976-03-23 Devron Engineering Ltd. Steam supply apparatus
US4351700A (en) * 1980-06-23 1982-09-28 Dove Norman F Steam distribution apparatus for the nip of two rolls
FI82095C (fi) * 1987-09-29 1991-01-10 Valmet Paper Machinery Inc Foerfarande och anordning i cylindertorken av en pappersmaskin.
US4867054A (en) * 1988-01-26 1989-09-19 Thermo Electron Web Systems, Inc. Caliper control system
CA1319286C (en) * 1989-04-20 1993-06-22 Robert James Harry Mason Application of superheated steam
DE4125062C2 (de) * 1991-07-29 1994-12-08 Vib Apparatebau Gmbh Dampfblaskasten

Also Published As

Publication number Publication date
US5752324A (en) 1998-05-19
WO1996022421A1 (de) 1996-07-25
DE4401220C1 (de) 1995-06-29
EP0745158A1 (de) 1996-12-04
BR9507116A (pt) 1997-09-02

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