EP0088353A1 - Dispositif de séchage pour une bande traitée dans un liquide - Google Patents

Dispositif de séchage pour une bande traitée dans un liquide Download PDF

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Publication number
EP0088353A1
EP0088353A1 EP83102023A EP83102023A EP0088353A1 EP 0088353 A1 EP0088353 A1 EP 0088353A1 EP 83102023 A EP83102023 A EP 83102023A EP 83102023 A EP83102023 A EP 83102023A EP 0088353 A1 EP0088353 A1 EP 0088353A1
Authority
EP
European Patent Office
Prior art keywords
drying device
air
systems
hot air
blow
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.)
Withdrawn
Application number
EP83102023A
Other languages
German (de)
English (en)
Inventor
Helmut Ing. Grad Jung
Franz Gerhard Ing. Grad Pempera
Udo Ing. Grad Riedesel
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.)
Vodafone GmbH
Original Assignee
Mannesmann AG
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 Mannesmann AG filed Critical Mannesmann AG
Publication of EP0088353A1 publication Critical patent/EP0088353A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B13/00—Machines and apparatus for drying fabrics, fibres, yarns, or other materials in long lengths, with progressive movement
    • F26B13/10—Arrangements for feeding, heating or supporting materials; Controlling movement, tension or position of materials
    • F26B13/101—Supporting materials without tension, e.g. on or between foraminous belts
    • F26B13/104—Supporting materials without tension, e.g. on or between foraminous belts supported by fluid jets only; Fluid blowing arrangements for flotation dryers, e.g. coanda nozzles

Definitions

  • the invention relates to a drying device for metal strip treated in a liquid, in particular for a metal strip coming from a pickling plant, consisting of two blowing systems for the hot air, which are arranged above and below the strip passage and extend over the maximum strip width and the dryer length, by means of a blower is fed through a heat exchanger used to heat the air to the blowing systems.
  • a drying device for metal strip treated in a liquid in particular for a metal strip coming from a pickling plant, consisting of two blowing systems for the hot air, which are arranged above and below the strip passage and extend over the maximum strip width and the dryer length, by means of a blower is fed through a heat exchanger used to heat the air to the blowing systems.
  • Dryers in their thermal output designed for the maximum bandwidth and the maximum belt speed, so that energy is useless to the environment when narrower belts pass through the dryer.
  • the bandwidth spectrum in process lines for strip, in which the metal strip is treated in a liquid is usually between 600 and 1550 mm.
  • the invention has for its object to reduce the energy consumption of drying devices for metal strips.
  • the invention consists in that the effective width of the hot air streams emerging from the blowing systems can be changed in adaptation to the respective bandwidth and excess hot air from the Blow systems can be fed to the suction side of the blower. This opens up the possibility that the excess warm air which is associated with the reduction in the bandwidth can be utilized in the circuit, the saving in energy being manifested in the reduction in the heating energy supplied to the primary circuit of the heat exchanger.
  • a flow control valve with variable air passage must be arranged in the pipeline leading to the suction side of the blower, which is closed if an excess amount of warm air is not generated when the maximum bandwidth is dried.
  • the air passage of the quantity control valve is increased to such an extent that the excess amount of hot air produced by reducing the effective width of the warm air flows can be returned to the circuit.
  • the pressure must be maintained at which the amount of warm air required for drying the strip is blown out in the unit of time.
  • the invention also includes a second solution to the energy saving problem.
  • the effective width of the hot air flows emerging from the blowing systems is also made adaptable to the respective bandwidth, but in conjunction with a speed-adjustable volumetric fan, e.g. B. a Roots blower for adjusting the amount of time of the hot air just corresponding to the respective bandwidth.
  • a speed-adjustable volumetric fan e.g. B. a Roots blower for adjusting the amount of time of the hot air just corresponding to the respective bandwidth.
  • the effective width of the warm air flows can be adapted to the respective bandwidth by switching the blow valves of the blow systems on and off, but it is advisable to gradually cover the ends of the air outlet slots of the blow systems which extend over the maximum bandwidth.
  • a simple means for this is that the ends of the air inlet slots can be progressively covered inwards by sawtooth-shaped cover plates which can be adjusted transversely to the slots.
  • the air outlet slots are expediently roof-shaped, so that the warm-air compartments emerging from them, which are also roof-shaped, are. Moisture adhering to the tape is like a snow plow to the tape edges,
  • the drying effect can also be improved in conjunction with an energy saving in that the blowing systems are designed to be closed at the maximum bandwidth and their dryer length up to the air outlet openings in such a way that the hot air flows impinging on the strip are only discharged transversely to the strip surface.
  • the band edges are coated with hot air with warm air, the drying of which had to be viewed as critical in previous systems.
  • the drying device consists of two blowing systems 1 in the form of closed housings which are arranged above or below the belt 2 to be dried.
  • the outside air sucked in by means of a blower 3 at a constant speed is heated in the heat exchanger 4 with the primary circuit 4a and reaches the blowing systems 1 via the pipeline 5, which extend over a little more than the maximum bandwidth B and over a certain dryer max length.
  • the effective width of the hot air flows represented by arrows is reduced, for example, to the bandwidth B, as will be explained in more detail, an excess amount of hot air is generated in the housing-like blowing systems 1, which is supplied to the suction side of the blower 3 via the line 6 and a volume control valve 7 and mixes there with the air portion sucked in from the ambient air and passing through the filter 8.
  • a heat sensor 9 is arranged, which measures the temperature of the air flow entering and recovered heat carried in the heat exchanger 4.
  • the energy supply to the primary circuit 4a of the heat exchanger 4 is more or less reduced in accordance with the measured inlet temperature of the air.
  • the air passage of the flow control valve 7 is closed or at most only slightly opened given the maximum bandwidth, since in this case the heating power is fully used and no excess warm air is produced. Only when the effective width of the warm air flows is reduced in the case of narrow belts there is an excess amount of hot air which is returned to the circuit by opening the air passage in the volume control valve 7.
  • FIG. 2 there are two changes compared to that of FIG. 1, namely the line 6 with flow control valve 7 and the heat sensor 9 with control and actuator 10, 11, whereas the fan 12 is a speed-adjustable volumetric fan, for . B. is a roots blower.
  • the speed of the motor 14 for driving the blower 12 can be adjusted to the amount of hot air that corresponds to the possibly reduced effective width of the hot air flows via an adjusting device 13. An energy saving with a reduced effective width of the hot air flows then arises due to the reduced removal of heating power in the heat exchanger 4.
  • FIG. 3 shows the top view of the slot side of a housing-like blowing system 1.
  • a number of roof-shaped air outlet slots 15 are incorporated into the housing wall 1 a facing the band 2, which also allow roof-shaped warm air compartments to emerge.
  • the roof shape of the air outlet slots 15 leads to the moisture adhering to the band 2 being increasingly discharged to the outside towards the band edges. Since the closed design of the blowing systems means that the hot air flows are only diverted transversely to the direction of the strip travel, as shown in FIG. 1, the strip edges are particularly intensively coated with the warm air.
  • Each housing wall 1a of the blow molding systems 1 facing the band 2 carries a pair of guide strips 16 extending in the direction of passage A of the band for guiding adjustable cover elements 17.
  • These cover elements te 17 carry sawtooth-shaped or trapezoidal, pair-facing cover areas 17 a, which - as shown in FIG. 3 - ineffectively intervene between adjacent air outlet slots 15 when the full slot width corresponds to the maximum bandwidth B max . for the application of the band 2 with hot air must be used.
  • the cover elements 17 can be fixed in their respective cover positions.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Drying Of Solid Materials (AREA)
  • Chemical Treatment Of Metals (AREA)
  • Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
  • ing And Chemical Polishing (AREA)
EP83102023A 1982-03-09 1983-03-02 Dispositif de séchage pour une bande traitée dans un liquide Withdrawn EP0088353A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19823208408 DE3208408A1 (de) 1982-03-09 1982-03-09 Trockenvorrichtung fuer in einer fluessigkeit behandeltes metallband
DE3208408 1982-03-09

Publications (1)

Publication Number Publication Date
EP0088353A1 true EP0088353A1 (fr) 1983-09-14

Family

ID=6157707

Family Applications (1)

Application Number Title Priority Date Filing Date
EP83102023A Withdrawn EP0088353A1 (fr) 1982-03-09 1983-03-02 Dispositif de séchage pour une bande traitée dans un liquide

Country Status (4)

Country Link
US (1) US4505050A (fr)
EP (1) EP0088353A1 (fr)
JP (1) JPS58167784A (fr)
DE (1) DE3208408A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2696362A1 (fr) * 1992-10-07 1994-04-08 Monforts Textilmaschinen Gmbh Système de buses.
WO1997037183A1 (fr) * 1996-03-29 1997-10-09 Minnesota Mining And Manufacturing Company Appareil et technique de limitation de l'air excedentaire lors du sechage d'un revetement sur un substrat
CN113412405A (zh) * 2019-02-08 2021-09-17 奥特发德国科技有限公司 用于纺织幅材制品的干燥装置和干燥方法

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NO157339C (no) * 1985-11-04 1988-03-02 Thune Eureka As Fremgangsm te ved varmebehandling av baneformet mat og innretning ved anlegg for varmebehandling av en loepende bane.
US5201132A (en) * 1991-04-26 1993-04-13 Busch Co. Strip cooling, heating or drying apparatus and associated method
US5611151A (en) * 1994-06-10 1997-03-18 Busch Co. Strip cooling, heating, wiping or drying apparatus and associated method

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB578735A (en) * 1940-05-31 1946-07-10 Julien Dungler Improvements in or relating to tentering and like machines for drying cloth or other material
GB1118212A (en) * 1965-04-12 1968-06-26 Bristol Fan Company Ltd Apparatus for drying webs of sheet material
DE1283159B (de) * 1965-06-30 1968-11-14 Schilde Ag Schlitzduese fuer Prallstrahltrockner
DE1546173A1 (de) * 1965-03-19 1969-04-17 C Otto & Company Gmbh Dr Verfahren zur Nachbehandlung von gebeiztem strangfoermigem Material,vorzugsweise Breitband
DE1604846A1 (de) * 1966-03-23 1970-07-09 Julien Dungler Vorrichtung zur Zufuehrung eines gasfoermigen Mediums,insbesondere von Trocknungsluft,zu einer bewegten Warenbahn
DE2029494A1 (en) * 1970-06-15 1971-12-30 Brückner-Trockentechnik KG, 7250 Leonberg Heat treating moving band - with adjustment of air nozzles to different
GB1340886A (en) * 1970-10-23 1973-12-19 Pilkington Brothers Ltd Drying of sheet material
GB1510851A (en) * 1975-06-06 1978-05-17 Tsudakoma Ind Co Ltd Drying apparatus for running yarn sheets

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1236359A (en) * 1916-10-14 1917-08-07 Elmer H Reynolds Suction-box for cloth crabbing and extracting machines.
US2311616A (en) * 1940-02-15 1943-02-16 American Rolling Mill Co Apparatus for treating metal strips
US2338167A (en) * 1942-11-19 1944-01-04 Celanese Corp Tentering machine
GB812429A (en) * 1955-04-26 1959-04-22 Bemberg Ag Method of and apparatus for drying films, foils, webs and fabrics
US3089252A (en) * 1959-04-22 1963-05-14 Beloit Iron Works Web moisture profile control for paper machine
US3417484A (en) * 1967-03-02 1968-12-24 Itek Corp Web drying apparatus
US4200994A (en) * 1977-08-05 1980-05-06 Edgar Pickering (Blackburn) Ltd. Drying apparatus
US4286392A (en) * 1980-02-01 1981-09-01 Pako Corporation Automatic load-adjusting vent control for film dryers

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB578735A (en) * 1940-05-31 1946-07-10 Julien Dungler Improvements in or relating to tentering and like machines for drying cloth or other material
DE1546173A1 (de) * 1965-03-19 1969-04-17 C Otto & Company Gmbh Dr Verfahren zur Nachbehandlung von gebeiztem strangfoermigem Material,vorzugsweise Breitband
GB1118212A (en) * 1965-04-12 1968-06-26 Bristol Fan Company Ltd Apparatus for drying webs of sheet material
DE1283159B (de) * 1965-06-30 1968-11-14 Schilde Ag Schlitzduese fuer Prallstrahltrockner
DE1604846A1 (de) * 1966-03-23 1970-07-09 Julien Dungler Vorrichtung zur Zufuehrung eines gasfoermigen Mediums,insbesondere von Trocknungsluft,zu einer bewegten Warenbahn
DE2029494A1 (en) * 1970-06-15 1971-12-30 Brückner-Trockentechnik KG, 7250 Leonberg Heat treating moving band - with adjustment of air nozzles to different
GB1340886A (en) * 1970-10-23 1973-12-19 Pilkington Brothers Ltd Drying of sheet material
GB1510851A (en) * 1975-06-06 1978-05-17 Tsudakoma Ind Co Ltd Drying apparatus for running yarn sheets

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
DR. ING. BRUNO ECK, "Ventilatoren" 4. Auflage, 1962 SPRINGER-VERLAG, Berlin/Gottingen/Heidelberg * Seite 340, Fig. 354 ; Seite 342, insbesondere die beiden letzten Zeilen * *

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2696362A1 (fr) * 1992-10-07 1994-04-08 Monforts Textilmaschinen Gmbh Système de buses.
WO1994008188A1 (fr) * 1992-10-07 1994-04-14 A. Monforts Textilmaschinen Gmbh & Co Systeme de tuyeres
WO1997037183A1 (fr) * 1996-03-29 1997-10-09 Minnesota Mining And Manufacturing Company Appareil et technique de limitation de l'air excedentaire lors du sechage d'un revetement sur un substrat
CN113412405A (zh) * 2019-02-08 2021-09-17 奥特发德国科技有限公司 用于纺织幅材制品的干燥装置和干燥方法
US11898284B2 (en) 2019-02-08 2024-02-13 Autefa Solutions Germany Gmbh Drying device and drying method for a textile material web

Also Published As

Publication number Publication date
JPS58167784A (ja) 1983-10-04
DE3208408A1 (de) 1983-09-15
US4505050A (en) 1985-03-19

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

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AK Designated contracting states

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

ITCL It: translation for ep claims filed

Representative=s name: MODIANO & ASSOCIATI S.R.L.

TCNL Nl: translation of patent claims filed
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Effective date: 19831005

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18W Application withdrawn

Withdrawal date: 19841117

RIN1 Information on inventor provided before grant (corrected)

Inventor name: JUNG, HELMUT, ING. GRAD

Inventor name: RIEDESEL, UDO, ING. GRAD

Inventor name: PEMPERA, FRANZ GERHARD, ING. GRAD