EP0990866B1 - Vorrichtung zur Wärmebehandlung einer breitgeführten Warenbahn - Google Patents

Vorrichtung zur Wärmebehandlung einer breitgeführten Warenbahn Download PDF

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Publication number
EP0990866B1
EP0990866B1 EP99116982A EP99116982A EP0990866B1 EP 0990866 B1 EP0990866 B1 EP 0990866B1 EP 99116982 A EP99116982 A EP 99116982A EP 99116982 A EP99116982 A EP 99116982A EP 0990866 B1 EP0990866 B1 EP 0990866B1
Authority
EP
European Patent Office
Prior art keywords
intake
gas
nozzle
treatment
filter
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
EP99116982A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0990866A3 (de
EP0990866A2 (de
Inventor
Michael Dipl.-Ing. Christ
Johann Dipl.-Ing. Tiefenbach
Mario Dipl.-Ing. Schmitt
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.)
Brueckner Trockentechnik GmbH and Co KG
Original Assignee
Brueckner Trockentechnik GmbH and Co KG
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 Brueckner Trockentechnik GmbH and Co KG filed Critical Brueckner Trockentechnik GmbH and Co KG
Publication of EP0990866A2 publication Critical patent/EP0990866A2/de
Publication of EP0990866A3 publication Critical patent/EP0990866A3/de
Application granted granted Critical
Publication of EP0990866B1 publication Critical patent/EP0990866B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B21/00—Arrangements or duct systems, e.g. in combination with pallet boxes, for supplying and controlling air or gases for drying solid materials or objects
    • F26B21/003—Supply-air or gas filters
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B23/00—Heating arrangements
    • F26B23/02—Heating arrangements using combustion heating

Definitions

  • the invention relates to a device for heat treatment a continuously transported, broadly guided Goods web, according to the preamble of the claim 1.
  • This stenter dryer contains several cascaded Forced air treatment fields, essentially similar in a device or machine housing are trained. Any air treatment field contains a separate air recirculation system with a Fan for generating a circulating Treatment air flow or circulating air flow, one with connected to the suction side of the fan Intake duct, the inflow end of which with a fiber filter is connected, and one with the pressure side of the fan connected nozzle box system, through which the circulating air flow on the continuously transported web is inflated.
  • the circulating air flow can in this case either indirectly, via a arranged in the intake duct heating heat exchanger or through a direct heating burner device heated or reheated be essentially within the fiber filter is arranged.
  • This fiber filter is included executed in the form of a drum filter, the cylindrical one Sheath designed as a screen jacket and rotating is drivable.
  • stenter dryer contains the Burner device of each recirculation system a burner, which a flame guide tube surrounding the burner flame is assigned, which is concentric within the drum filter screen is arranged and in axial Direction at least up to the downstream end of the drum filter, but preferably still above out into the inflow end of the gas intake duct extends.
  • the generated ones Fuel gases approximately centrally into the inflow end of the intake duct initiated during the through the sieve jacket of the Drum filter intake air on the outer circumference side (approximately ring-shaped) into the inflow end of the gas intake duct is initiated.
  • Practice has now shown that in this way there is already thorough mixing of recirculated air and hot fuel gases can be achieved that this mixing in general however, is still quite inadequate, which is why in practice, often special mixing devices has arranged in the gas intake duct.
  • the invention is therefore based on the object Device according to the preamble of claim 1 in to improve the way that by relatively simple constructive measures with a particularly uniform Backflow of the treatment gas stream through the Filter device an optimal mixing of recycled Treatment gas and heating gas as well as a special one good burning out of the flame or the fuel is achieved can be.
  • Suction nozzle in extension of Incoming end of the gas intake duct is approximately tubular Suction nozzle is arranged, which is approximately in the form of a Venturi tube a nozzle-like in the gas flow direction constricting aspirator and a diffuser-like towards the inflow end of the gas intake duct has conically widening outflow end, this Intake nozzle with its open intake end freely in the Filter device protrudes.
  • Suction nozzle a circumferential distance to the filter screen of the filter device on, and between the suction end of this Intake nozzle and the free, open mouth end of the Flame guide tube of the burner device is an approx annular flow space for recirculation or recirculation of treatment gas.
  • the recycled treatment gas flows through said annular flow space (between the suction nozzle and flame guide tube) with correspondingly higher Speed, being after flowing through this annular flow space, especially behind the mouth end of the flame guide tube, tear-off vortex Form that for optimal mixing of recycled Provide treatment gas and heating gas.
  • the transition area from the outflow end of the suction nozzle into the inflow end of the gas intake duct - through the corresponding one Adaptation of the mostly different cross-sectional flows - created another vortex zone the a further mixing of the heating gas with the cause recycled treatment gas and thus the Uniformity of the fan and nozzle system the treatment gas to be supplied to the material web further optimize.
  • Additional mixing devices such as they are considered necessary in known designs can be in the device according to the invention omitted.
  • suction end of the-about in the form of a Venturi tube - suction nozzle roughly trumpet-like against the direction of gas flow is expanded.
  • the gas flow lies particularly in the suction nozzle well on the inside of that suction at what a relatively low flow resistance brings.
  • This heat treatment device will based on the drawing in its preferred embodiment, namely as a stretching machine for drying and / or Fixing textile webs described.
  • the heat treatment device also for other continuously transported, broadly guided Material webs, such as paper webs, plastic webs or the like, can be formed.
  • the tensioner contains a fixture or machine housing 1, in which at least one treatment field F, but preferably several in the web transport direction (Arrow 2) immediately consecutive Treatment fields F formed or arranged are, in the plan view according to Fig.2 illustrates two such treatment fields F. are.
  • a textile to be treated in this stretching machine Goods web is designated WB and is available in a wide range or wide-spread condition in a known manner Way with the help of only indicated tension chains 3 in the longitudinal direction through all treatment fields F or transported through the entire tensioning machine, and that according to arrow 2 in Fig.2. in this connection in each treatment field F from above and / or from below a suitable treatment gas on the web WB inflated, as indicated by arrows 4 in Fig.1 is.
  • any suitable treatment gas can be used that the desired heat treatment the web WB guaranteed, is the simplicity half assumed that this treatment gas through Air or circulating air is formed in the form of a circulating air flow circulated in each treatment field F. and - as will be explained in more detail - on the required temperature is maintained.
  • each treatment field F is for generation and maintenance of the total symbolized by the arrows 4
  • a separate air circulation system is expedient UF provided the at least one the recirculated air flow generating fan 5, at least one yourself extending across the treatment width of the web WB Nozzle system 6 and an intake duct 7, an intake nozzle 8, a filter device 9 and a Recirculating air intake group containing burner device 10 having.
  • Fig.2 are useful all treatment fields F essentially the same Modular construction, with in the direction of web transport (Arrow 2) successive treatment fields F - viewed in the plan of the device (Fig.2) - in relation to their air circulation systems US each are arranged in mirror image to each other.
  • the nozzle system 6 can in the usual way above and below the web WB or the web transport level arranged nozzle box groups 6a or 6b are formed, which - as particularly Fig.1 shows - across the entire treatment range of the web WB extend and over their gas inflow 6a ' or 6b 'with the pressure side 5a of the corresponding fan 5 are connected.
  • a single fan can generally be used in each air circulation system 5 - as is known per se - together the upper ones and lower nozzle box groups 6a and 6b with treatment air or circulating air.
  • Particularly advantageous can, however, the embodiment indicated in Fig.2 be, according to which each US air recirculation system two such fans 5 contains, of which the printed page 5a of the a fan 5 with the inflow end 6a 'of the upper Nozzle box group 6a and the pressure side 5a of the second Fan 5 with the gas inflow end 6b 'of the lower Nozzle box group 6b is connected.
  • the latter has the Advantage that the upper and lower nozzle box groups 6a and 6b in a particularly targeted and independent manner be supplied with treatment air or treatment gas can.
  • the filter device 9 has at least one filter screen 11, 11a and is in the area of this Filter sieve or this filter sieves as through the Arrows 4 indicated - flow of air flows through.
  • This filter device 9 and in particular its Sieves 11, 11a are used to remove air from the circulating air contained impurities such as fluff, fibers and the like that when touching the web WB have been swept away by the circulating air flow.
  • the filter device 9 at least at their in and opposite to the web transport direction (Arrow 2) facing sides (as in Fig.2 is particularly recognizable) at least one flat Filter sieve 11, 11a, which in a transverse to Goods web transport direction (arrow 2), in arranged substantially vertical plane and from the Outside of a housing longitudinal wall 1a forth for cleaning purposes pulled out and then pushed back in again can be.
  • the Burner device 10 at least partially in the filter device 9 arranged or extends into this Filter device 9 into it.
  • the burner device 10 is among other things with a flame 12 generating Burner 13 and an approximately cylindrical flame tube or flame guide tube 14, which is about right-angled from the inside of the associated housing wall 1a in the transverse direction on the longitudinal axis 1b of the housing 1 and thus the tensioner extends.
  • the burner 13 is a direct one Gas or light heating oil heated burner.
  • the suction nozzle 8 already mentioned above is in Extension of the inflow end 7a of the gas intake duct 7 arranged and executed approximately tubular.
  • This suction nozzle 8 is particularly useful approximately in shape a Venturi tube, i.e. it points - as in the drawing is clearly visible - one in the gas flow direction (see arrows 4) narrowing like a nozzle Intake 8a and an approximately diffuser in Direction towards the inflow end 7a of the gas intake duct 7 conical (with relatively slim cone) widening outflow end 8b.
  • the suction nozzle 8 now projects with its open suction end 8a freely into the filter device 9. It points this suction nozzle 8 - as well as in the drawing recognizable - a circumferential distance on its outside to the filter screen 11 or 11a of the filter device 9 on. Furthermore, this is between the suction end 8a Intake nozzle 8 and the free, open mouth end 14a of the flame guide tube 14 is approximately annular Flow space for recirculation or return of Recirculated air is formed in the gas intake duct 7. The flame guide tube 14 appropriately protrudes with its mouth end 14a only into the suction end 8a of the suction nozzle 8.
  • the mentioned circumferential distance between the suction nozzle 8 and Filter sieve 11, 11a and the cross-sectional size of the annular Flow space 15 are dimensioned so that optimal Flow conditions of the recirculated air through the filter screens 11, 11a and the suction nozzle 8, on the one hand, and optimal mixing of these recirculated Circulating air with through the burner device 10 generated heating gases; on the other hand, is guaranteed.
  • the filter device 9 - according to the upper field described Fig.2 - approximately on the inside of one or the first Housing longitudinal wall 1a arranged during the at least a fan 5 in the area of the opposite longitudinal wall of the housing 1b and the gas intake duct 7 in the connection between filter device 9 and fan 5 is arranged.
  • the free, open suction end 8a of the suction nozzle 8 is against the first longitudinal wall of the housing 1a aligned, and the suction nozzle 8 protrudes - as in the Drawing shown - at least up to 1/4 of the transverse to the direction of web transport (arrow 2) Length of the filter screens 11, 11a in the filter device 9 in.
  • the filter device 9 - according to the upper field described Fig.2 - approximately on the inside of one or the first Housing longitudinal wall 1a arranged during the at least a fan 5 in the area of the opposite longitudinal wall of the housing 1b and the gas intake duct 7 in the connection between filter device 9 and fan 5 is arranged.
  • the filter screen of the filter device also by a rotatingly drivable, with a suitable one Cleaning device provided, essentially cylindrical screen jacket be formed, wherein this sieve jacket, the suction nozzle 8 and the flame guide tube 14 then coaxially with each other or into each other are arranged as is the Drawings in Figures 1 and 2 lets, at least the sieve jacket of this filter device trained, arranged and driven in the same way can be as in the embodiment according to 4 and 5 of the aforementioned DE-GM 83 04 087th
  • the outflow end 8b of this suction nozzle 8 on the face directly at the inflow end 7a of the gas intake duct 7 (for example by welding or flange mounting).
  • the end cross-section of the outflow end 8b that of the inflow end 7a of the gas intake duct 7 be adjusted accordingly, so that the optimal flow and mixing conditions be affected.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Textile Engineering (AREA)
  • Sustainable Development (AREA)
  • Drying Of Solid Materials (AREA)
  • Treatment Of Fiber Materials (AREA)
  • Basic Packing Technique (AREA)
  • Heat Treatment Of Articles (AREA)
  • Tunnel Furnaces (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
EP99116982A 1998-09-29 1999-08-27 Vorrichtung zur Wärmebehandlung einer breitgeführten Warenbahn Expired - Lifetime EP0990866B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19844691A DE19844691A1 (de) 1998-09-29 1998-09-29 Vorrichtung zur Wärmebehandlung einer breitgeführten Warenbahn
DE19844691 1998-09-29

Publications (3)

Publication Number Publication Date
EP0990866A2 EP0990866A2 (de) 2000-04-05
EP0990866A3 EP0990866A3 (de) 2001-09-12
EP0990866B1 true EP0990866B1 (de) 2004-02-11

Family

ID=7882683

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99116982A Expired - Lifetime EP0990866B1 (de) 1998-09-29 1999-08-27 Vorrichtung zur Wärmebehandlung einer breitgeführten Warenbahn

Country Status (5)

Country Link
EP (1) EP0990866B1 (pt)
AT (1) ATE259494T1 (pt)
DE (2) DE19844691A1 (pt)
ES (1) ES2216393T3 (pt)
PT (1) PT990866E (pt)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10010842B4 (de) * 2000-03-06 2009-10-01 Brückner Trockentechnik GmbH & Co. KG Vorrichtung zur Behandlung von Warenbahnen
DE10047834A1 (de) * 2000-09-27 2002-04-18 Monforts Textilmaschinen Gmbh Textilmaschine

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4200994A (en) * 1977-08-05 1980-05-06 Edgar Pickering (Blackburn) Ltd. Drying apparatus
DE8304087U1 (de) * 1983-02-14 1983-06-30 Brückner Trockentechnik GmbH & Co KG, 7250 Leonberg Vorrichtung zur umluftbehandlung von fortlaufend transportierten textilen warenbahnen, insbesondere spannrahmentrockner
DE4416541A1 (de) * 1994-05-10 1995-11-16 Brueckner Trockentechnik Gmbh Verfahren und Vorrichtung zur Reinigung eines Umluftstromes
DE29801875U1 (de) * 1998-02-04 1998-03-26 Brückner Apparatebau GmbH, 64711 Erbach Vorrichtung zur Wärmebehandlung einer Warenbahn

Also Published As

Publication number Publication date
PT990866E (pt) 2004-06-30
EP0990866A3 (de) 2001-09-12
DE59908499D1 (de) 2004-03-18
DE19844691A1 (de) 2000-03-30
ES2216393T3 (es) 2004-10-16
EP0990866A2 (de) 2000-04-05
ATE259494T1 (de) 2004-02-15

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