EP2633251A1 - Device for the throughflow treatment of web-shaped material - Google Patents
Device for the throughflow treatment of web-shaped materialInfo
- Publication number
- EP2633251A1 EP2633251A1 EP11779120.2A EP11779120A EP2633251A1 EP 2633251 A1 EP2633251 A1 EP 2633251A1 EP 11779120 A EP11779120 A EP 11779120A EP 2633251 A1 EP2633251 A1 EP 2633251A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- drum
- marked
- screen
- web
- screen drum
- 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
Links
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
- F26B13/14—Rollers, drums, cylinders; Arrangement of drives, supports, bearings, cleaning
- F26B13/16—Rollers, drums, cylinders; Arrangement of drives, supports, bearings, cleaning perforated in combination with hot air blowing or suction devices, e.g. sieve drum dryers
-
- 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
- F26B21/06—Controlling, e.g. regulating, parameters of gas supply
- F26B21/12—Velocity of flow; Quantity of flow, e.g. by varying fan speed, by modifying cross flow area
Definitions
- the invention relates to a device for through-flow treatment, in particular for drying sheet-like material according to the preamble of claim 1.
- a screen drum device for the continuous heat treatment of gas-permeable material webs is known.
- a material carrying the web in its outer periphery permeable designed sieve drum is rotatably mounted.
- the sieve drum is placed under induced draft via a fan assigned to the front side as a suction air generator.
- the extracted air is heated in a part of the housing formed as an air treatment (ventilator space) and directed into the treatment space surrounding the sieve drum. Due to the negative pressure within the sieve drum, the heated air flows through the textile material web carried by the sieve drum.
- this screen drum is assigned a screen cover covering the screen drum in the area of the loop.
- This jam or screen blanket is designed shell-shaped, so surrounds the sieve drum so centric or the stowage ceiling consists of straight sheet metal sections. Regardless of the type of arrangement of the screen cover this is designed as a perforated plate. The degree of transmittance of the screen cover is smaller than that of the screen drum carrying the material web. This results in a
- a screen drum device in which the screen cover surrounds the drum in the shape of a shell and the holes determining the air flow in the screen cover are adapted in arrangement and / or hole density to the throughflow changing in the circumferential direction of the drum.
- DE 40 22 336 A1 and EP 0465 769 A1 each show a device for the flow-through treatment of web-like material in which a jam and a screen blanket, each having a perforation, are displaceable relative to each other and so the air flow over the drum width is adjustable , The device is used to adjust the flow to different widths of material webs. Accordingly, different perforations are provided for congestion and screen ceiling.
- a dryer is known in which the drum carrying the material web is associated with a screen cover composed of straight sheets.
- the invention is therefore based on a device for the continuous treatment of web-like, gas-permeable material, in particular for drying woven or nonwoven fabrics, having the features:
- a sieve drum surrounding the screen drum in the area wrapped by the material web.
- Object of the present invention is to improve a device of the generic type, especially in the direction of increasing performance at low air speeds.
- the air permeability of the screen cover can be changed at least in a circumferential section of the screen drum.
- the fact is utilized that the air throughput through the material is not constant over the wrapping path of the material web. In the front region of the loop, so after a short transport path is, for example. With wet material, the air permeability is still low, compared to the air permeability of the web towards the end of the transport route, so after a lot of moisture was expelled.
- the air permeability of the screen cover can be changed at least in a circumferential section, that is to say a transport section of the material web, a very differentiated adaptation to the present treatment situation can be undertaken.
- a very differentiated adaptation to the present treatment situation can be undertaken.
- the permeability of the screen cover sections over the entire transport path of the web can be changed.
- the screen cover is constructed in sections of perforated sheet metal elements.
- At least one perforated plate element is interchangeable.
- At least one perforated plate element is assigned a slider with windows for adjusting the permeability.
- the slider is mounted parallel to the axial direction of the screen drum displaceable relative to the perforated plate element.
- the invention is applicable to dryers in which the material web to be dried flows through hot air and thus expels the moisture in the material. Also, the invention is applicable to the heat setting serving facilities in which, for example, a nonwoven consisting of fusible fibers is treated with hot air flowing through and solidified. Especially with voluminous, loose nonwovens, a low throughflow rate is desirable because this does not adversely affect the structure of the material.
- the permeability of the screen cover can be changed in sections over essentially the entire transport path of the track. This can be done by the perforated plates in the Siebse sections are interchangeable, and in the sections a sheet with provided Lo- chung, hole diameter, hole geometry is used.
- the sheets are interchangeable insertable in slots and can preferably laterally, ie parallel to the drum axis in slots inserted and ejected.
- the sieve cover has a fixed hole grid with openings of suitable diameter.
- the slide plate has windows adapted to the perforated grid, which each release or close the second row of holes. This allows the air outlet in the section from the full opening to be reduced by 50%.
- FIG. 1 shows a screen drum S with an air-permeable outer circumferential surface.
- the screen drum S is rotatably mounted in a housing G and connected in a manner not shown with a vacuum generator.
- the direction of rotation of the sieve drum S is indicated by the arrow.
- the interior of the housing G forms a treatment space BH for a material web M to be dried.
- a material web M for example a nonwoven web is guided.
- the material web M is fed into the housing G via a roller W1 and the outer circumference of the screen drum S, and removed from the outer circumference via a second roller W2 and led out of the housing G.
- the direction of movement of the material web M is indicated by the arrows.
- Inside the sieve drum S is not wrapped in the material web.
- gen region arranged an aperture B fixed to the frame, through which a sucking in this area is prevented.
- a perforated screen cover SD is arranged above the region of the screen drum S which is looped around by the material web M.
- the screen cover SD is mounted fixed to the frame, that is firmly connected to the housing G and consists of individual flat sections, which are each designed as a perforated plate.
- the screen drum S is connected at one end to a suction fan and is thus subjected to negative pressure.
- the fan is in a side adjoining the treatment room
- the Siebtrommel S surrounding Siebdecke SD consists of individual perforated plate elements LE with holes L ( Figure 2, 3). Each perforated plate element LE is assigned a relative to this movable slide SB, which has adapted to the hole structure of the perforated plate element LE window F. In the example shown in FIGS.
- the windows F of the slide SB have such a geometry and width that a complete row of holes in the perforated sheet element can be closed when the slide SB is moved (FIG. 2) or this row of holes can be released (FIG ).
- the movements necessary for closing and opening the holes L in the perforated sheet metal element LE are indicated by the arrows in FIGS. 2 and 3.
- the displacement of the slide SB about a row of holes causes the increase of the air flow rate by 100%, ie the air flow rate is doubled, starting from FIG. 2 (FIG. 3). If other geometries of perforations L in the perforated sheet metal element LE and on windows in the slide SB are selected, then further metering regions for the air passage can be realized.
- the openings in the screen cover are completely closed by inserting a completely closed sheet metal.
- the Siebbetweenabitesen SD guide elements are assigned, in which the provided slide SB can be used.
- the slides SB can be sheets with different window geometries or completely closed sheets. It can be provided that the slides SB are slidably received parallel to the axial direction of the screen drum S. Preferably, a remote adjustment is then provided by which individual slide SB but also all slides SB can be adjusted in total.
- the permeability of the Siebsupportabête SD on the transport path of the material web M is individually adjustable.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Treatment Of Fiber Materials (AREA)
- Drying Of Solid Materials (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102010050044A DE102010050044A1 (en) | 2010-10-29 | 2010-10-29 | Device for the flow-through treatment of sheet material |
PCT/EP2011/068245 WO2012055732A1 (en) | 2010-10-29 | 2011-10-19 | Device for the throughflow treatment of web-shaped material |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2633251A1 true EP2633251A1 (en) | 2013-09-04 |
EP2633251B1 EP2633251B1 (en) | 2016-03-02 |
Family
ID=44907826
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP11779120.2A Not-in-force EP2633251B1 (en) | 2010-10-29 | 2011-10-19 | Device for the throughflow treatment of web-shaped material |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP2633251B1 (en) |
DE (1) | DE102010050044A1 (en) |
WO (1) | WO2012055732A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20130025150A1 (en) * | 2010-04-15 | 2013-01-31 | Boehn Markus | Device for the flow-through treatment of web-shaped material |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102013114075A1 (en) | 2013-12-16 | 2015-06-18 | TRüTZSCHLER GMBH & CO. KG | Apparatus and method for thermally strengthening a textile web |
DE102014102119A1 (en) * | 2014-02-19 | 2015-08-20 | TRüTZSCHLER GMBH & CO. KG | Device for drying a textile web |
DE102014105060A1 (en) * | 2014-04-09 | 2015-10-15 | Trützschler GmbH + Co KG Textilmaschinenfabrik | Dryers for a textile web |
DE102015118596A1 (en) * | 2015-10-30 | 2017-05-04 | TRüTZSCHLER GMBH & CO. KG | Apparatus and method for the thermal treatment of a textile web |
DE102016110117A1 (en) | 2016-06-01 | 2017-12-07 | TRüTZSCHLER GMBH & CO. KG | Device for heat treatment of a textile web, in particular a dryer or thermal bonder |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1635332A1 (en) * | 1966-07-06 | 1971-04-01 | Vepa Ag | Device for hot air treatment or steaming of textile materials |
DE1729494B2 (en) * | 1967-07-05 | 1975-11-13 | Vepa Ag, Riehen Bei Basel (Schweiz) | Use of a sieve drum under an induced draft of a gas for the heat treatment of air-permeable material in a high-frequency field |
DE1900496C3 (en) * | 1969-01-07 | 1978-11-09 | Vepa Ag, Riehen B. Basel (Schweiz) | Device for handling permeable goods |
DE3006758A1 (en) | 1980-02-22 | 1981-09-03 | Vepa AG, 4125 Riehen, Basel | Hot air dryer for open width textile material - has several pairs of superimposed suction drums arranged in series |
DE3905001A1 (en) | 1989-02-18 | 1990-08-23 | Fleissner Maschf Ag | SCREEN DRUM DEVICE WITH SCREEN COVER |
DE4022336A1 (en) | 1990-07-13 | 1992-01-16 | Fleissner Maschf Ag | DEVICE FOR FLOWING TREATMENT OF RAILWAY GOODS |
DE19919757A1 (en) | 1999-04-29 | 2000-11-02 | Fleissner Maschf Gmbh Co | Sieve drum device for drying permeable webs |
-
2010
- 2010-10-29 DE DE102010050044A patent/DE102010050044A1/en not_active Withdrawn
-
2011
- 2011-10-19 EP EP11779120.2A patent/EP2633251B1/en not_active Not-in-force
- 2011-10-19 WO PCT/EP2011/068245 patent/WO2012055732A1/en active Application Filing
Non-Patent Citations (1)
Title |
---|
See references of WO2012055732A1 * |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20130025150A1 (en) * | 2010-04-15 | 2013-01-31 | Boehn Markus | Device for the flow-through treatment of web-shaped material |
US8997371B2 (en) * | 2010-04-15 | 2015-04-07 | Trützschler Nonwovens & Man-Made-Fibers Gmbh | Device for the flow-through treatment of web-shaped material |
Also Published As
Publication number | Publication date |
---|---|
WO2012055732A1 (en) | 2012-05-03 |
DE102010050044A1 (en) | 2012-05-03 |
EP2633251B1 (en) | 2016-03-02 |
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