EP1368534A1 - Trommelvorrichtung mit durchlässigem trommelmantel und gespannt aufgezogenem siebgewebe - Google Patents
Trommelvorrichtung mit durchlässigem trommelmantel und gespannt aufgezogenem siebgewebeInfo
- Publication number
- EP1368534A1 EP1368534A1 EP02729946A EP02729946A EP1368534A1 EP 1368534 A1 EP1368534 A1 EP 1368534A1 EP 02729946 A EP02729946 A EP 02729946A EP 02729946 A EP02729946 A EP 02729946A EP 1368534 A1 EP1368534 A1 EP 1368534A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- drum
- spring elements
- clamping ring
- web
- spring
- 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
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
- D21F5/00—Dryer section of machines for making continuous webs of paper
- D21F5/18—Drying webs by hot air
- D21F5/182—Drying webs by hot air through perforated cylinders
Definitions
- the invention relates to a drum device - preferably a screen drum device for flowing heat treatment of web-like textile material, fleece or paper with a z. B. gaseous, circulated in the device treatment agent with an inside under suction, frontal floors, for permeability z.
- the clamping ring consists of an angular profile ring, the outer diameter of which corresponds to that of the sieve drum and on which the sieve fabric is attached. Coil springs supported on the opposite bottom wall of the sieve drum are directed against the perpendicular end wall of the tension ring, whereby the tension ring tightens the sieve fabric over the drum. Since the spiral springs cannot transmit any radial force, the clamping ring must be held in position by means of rigid adjustment bolts attached to the bottom of the sieve drum, over which the clamping ring slides axially.
- the solution according to the FR-PS results in a friction of the tension ring on the drum axis or on the outer diameter of the intake manifold, regardless of a larger and therefore disadvantageous mass of the tension ring, particularly in the case of large drums, and the solution according to DE-AS is omitted because the sieve mesh is the constant expansion compensation during use is always pulled over the radially outer clamping edge of the clamping ring, which permanently destroys the tissue at this point.
- the invention has for its object to find an elastic clamping attachment for a sieve fabric wound on a drum, which also compensates for the radially oriented forces by the mutually occurring thermal expansion forces on the clamping ring.
- the z. B. are attached radially inwards on the drum base.
- Such spring elements are advantageous which have a greater width, that is to say are designed in the form of a web.
- the radially effective forces are thus absorbed from the bottom of the drum via the radially directed webs, as with spokes on the wheel.
- the clamping ring is therefore axially movable also supported radially, without any kind of friction and thus wear.
- spring elements made from a flat spring steel, which are bent into a U-shape and in which the spring tension lies in the respective opening of the U-shaped expansion.
- the closed end of the U-shaped spring is thus radially inward, while the two radially outward legs of the spring are axially spread - as seen in the direction of the axis of the drum.
- One leg is attached to the drum base and the other to the clamping ring, on which in turn the screen fabric z. B. is held by a clamping ring.
- a device of the type according to the invention is shown as an example in the drawing. Show it:
- Fig. 1 in cross section a roller with the two drum bottoms and between them a perforated drum shell with radially outer U-shaped spacers for the sieve fabric surrounding the drum
- Fig. 2 shows the detail X of FIG. 1 in an enlarged view
- Fig. 3 that Detail X of FIG. 2 in the view in the direction of arrow Y.
- the screen drum device corresponds essentially to the device according to DE-A-19 525 459.
- a conventional screen drum device basically consists of an approximately rectangular housing, not shown here, which is divided into a treatment room and a fan room.
- the screening drum 1 is rotatably mounted in the treatment room and a fan is concentric to it in the fan room.
- the fan chamber can also be arranged in a separate fan housing which is separated from the screen drum housing and is likewise not shown here. In any case, the fan draws the inside of the drum 1.
- the screening drum 1 consists of the two drum bottoms 2 and 3, which have a hollow axis 4, 5, through which the interior of the drum 1 is placed under suction.
- the stable drum bottoms 2, 3 have a radially outer ring disk 6 which is of simpler design and which is firmly welded to the respective floor 2, 3.
- Axially inward of the drum 1, these ring disks 6 each carry a lig ring groove 7, the perforated drum shell 8, on which the more clearly visible from FIG. 3, U-shaped bent spacers 9 for the outside of the tubular mesh fabric 10 are attached.
- the spacers 9 lie next to one another at a defined distance and with their radially inner surface directly on the sieve drum jacket 8.
- the sieve-shaped covering 10 in turn lies only on the radially outer edges of the U-shaped spacers 9, which ensures a uniform flow through the material resting on the sieve fabric 10.
- the sieve fabric 10 is axially tensioned on the drum bottoms 2, 3 or on the annular disks 6 and is to be fastened elastically.
- U-shaped curved spring elements 11, which have a larger width as shown in FIG. 3, are used.
- the spring elements 11 are made of spring steel and are bent in a U-shape and thus have two legs 11 'and 11 "of equal length, which in the untensioned state are inclined apart see the dashed lines.
- the spring tension of the spring elements 11 thus lies in the respective spread 16 of these two legs 11 'and 11 ".
- the spring elements 11 are aligned with their closed side radially to the drum axis.
- One radially outward leg 11 "of the spring element 11 is fastened by screws 12 to the washer 6 and thus to the drum base 2, 3, while the other leg 11 * is fastened to the clamping ring 13 for the screen fabric 10 by means of corresponding screws 14
- the fastening of the spring elements 11 to the drum base and to the clamping ring 13 is provided at the same radial height. Axially outside the clamping ring, the clamping ring 15, which can also consist of ring segments, is then necessary in order to ensure that the gap between the clamping ring and the clamping ring is the same Clamp edge of screen fabric 10 to hold.
- the spring elements are to be compressed with the aid of an auxiliary device (not shown) by the entire spring travel 16, the clamping ring 15 with the tension ring 13 and between them the screen fabric 10 by means of screws or the like.
- the screen fabric is stretched and then lies firmly on the webs of the U-shaped spacers 9. at During operation, heat-related changes in the state of tension equalize the spring elements in the axial and also in the radial direction.
Landscapes
- Treatment Of Fiber Materials (AREA)
- Paper (AREA)
- Registering, Tensioning, Guiding Webs, And Rollers Therefor (AREA)
- Storage Of Web-Like Or Filamentary Materials (AREA)
- Soil Working Implements (AREA)
- Crushing And Grinding (AREA)
- Processing Of Meat And Fish (AREA)
- Printing Plates And Materials Therefor (AREA)
- Manufacture Or Reproduction Of Printing Formes (AREA)
- Wire Processing (AREA)
- Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)
Description
Claims
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE10111335 | 2001-03-08 | ||
| DE10111335A DE10111335A1 (de) | 2001-03-08 | 2001-03-08 | Trommelvorrichtung mit durchlässigem Trommelmantel und gespannt aufgezogenem Siebgewebe |
| PCT/EP2002/002238 WO2002086235A1 (de) | 2001-03-08 | 2002-03-01 | Trommelvorrichtung mit durchlässigem trommelmantel und gespannt aufgezogenem siebgewebe |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP1368534A1 true EP1368534A1 (de) | 2003-12-10 |
| EP1368534B1 EP1368534B1 (de) | 2006-05-17 |
Family
ID=7676841
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP02729946A Expired - Lifetime EP1368534B1 (de) | 2001-03-08 | 2002-03-01 | Trommelvorrichtung mit durchlässigem trommelmantel und gespannt aufgezogenem siebgewebe |
Country Status (8)
| Country | Link |
|---|---|
| US (1) | US6918195B2 (de) |
| EP (1) | EP1368534B1 (de) |
| JP (1) | JP4319837B2 (de) |
| AT (1) | ATE326577T1 (de) |
| DE (2) | DE10111335A1 (de) |
| EA (1) | EA004848B1 (de) |
| PL (1) | PL198418B1 (de) |
| WO (1) | WO2002086235A1 (de) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10307074A1 (de) | 2003-02-19 | 2004-09-02 | Fleissner Gmbh & Co. Maschinenfabrik | Vorrichtung mit einer von einem Fluid radial durchströmten Siebtrommel und einem diese umgebenden durchlässigen Belag |
| AT413709B (de) * | 2004-06-28 | 2006-05-15 | Andritz Ag Maschf | Vorrichtung zum kontinuierlichen trocknen einer faserstoffbahn |
| DE102004040886A1 (de) * | 2004-08-24 | 2006-03-02 | Volkswagen Ag | Bedienvorrichtung für ein Kraftfahrzeug |
| CN111023720A (zh) * | 2019-12-11 | 2020-04-17 | 湖北田鑫建材有限公司 | 一种环保石膏板生产用干燥机 |
| US11168442B1 (en) * | 2020-07-08 | 2021-11-09 | Valmet, Inc. | Through-air apparatus with tension cam mechanism |
| CN119164358B (zh) * | 2024-11-15 | 2025-01-28 | 中铁二十五局集团第三工程有限公司 | 波形钢腹板形变检测装置及检测方法 |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1297978B (de) * | 1966-02-04 | 1969-06-19 | Voith Gmbh J M | Presswalze mit einem auf dem Presswalzenkoerper aufgezogenen oder aufgeschrumpften Gewebemantel |
| DE1729487B1 (de) * | 1967-01-25 | 1971-08-12 | Vepa Ag | Siebwalze mit einem diese schlauchartig umschlingenden Metallsiebgewebe und Verfahren zum Bilden eines Gewebeschlauches und dessen Befestigung an der Siebwalze |
| JPS5832707B2 (ja) * | 1977-06-10 | 1983-07-14 | キヤノン株式会社 | 弾性ロ−ラ− |
| DE3501635A1 (de) * | 1985-01-19 | 1986-07-24 | J.M. Voith Gmbh, 7920 Heidenheim | Presswalze |
-
2001
- 2001-03-08 DE DE10111335A patent/DE10111335A1/de not_active Withdrawn
-
2002
- 2002-03-01 DE DE50206810T patent/DE50206810D1/de not_active Expired - Lifetime
- 2002-03-01 US US10/469,855 patent/US6918195B2/en not_active Expired - Lifetime
- 2002-03-01 PL PL363648A patent/PL198418B1/pl unknown
- 2002-03-01 JP JP2002583743A patent/JP4319837B2/ja not_active Expired - Fee Related
- 2002-03-01 EP EP02729946A patent/EP1368534B1/de not_active Expired - Lifetime
- 2002-03-01 EA EA200300981A patent/EA004848B1/ru not_active IP Right Cessation
- 2002-03-01 AT AT02729946T patent/ATE326577T1/de not_active IP Right Cessation
- 2002-03-01 WO PCT/EP2002/002238 patent/WO2002086235A1/de not_active Ceased
Non-Patent Citations (1)
| Title |
|---|
| See references of WO02086235A1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| PL363648A1 (en) | 2004-11-29 |
| DE10111335A1 (de) | 2002-09-12 |
| EA004848B1 (ru) | 2004-08-26 |
| DE50206810D1 (de) | 2006-06-22 |
| JP2004524456A (ja) | 2004-08-12 |
| JP4319837B2 (ja) | 2009-08-26 |
| EA200300981A1 (ru) | 2004-02-26 |
| US20040134089A1 (en) | 2004-07-15 |
| US6918195B2 (en) | 2005-07-19 |
| WO2002086235A1 (de) | 2002-10-31 |
| ATE326577T1 (de) | 2006-06-15 |
| PL198418B1 (pl) | 2008-06-30 |
| EP1368534B1 (de) | 2006-05-17 |
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