CA2182137A1 - Method and device for drying a fiber web - Google Patents
Method and device for drying a fiber webInfo
- Publication number
- CA2182137A1 CA2182137A1 CA 2182137 CA2182137A CA2182137A1 CA 2182137 A1 CA2182137 A1 CA 2182137A1 CA 2182137 CA2182137 CA 2182137 CA 2182137 A CA2182137 A CA 2182137A CA 2182137 A1 CA2182137 A1 CA 2182137A1
- Authority
- CA
- Canada
- Prior art keywords
- wire
- web
- air
- loop
- loop path
- 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.)
- Abandoned
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
- D21F5/02—Drying on cylinders
- D21F5/04—Drying on cylinders on two or more drying cylinders
- D21F5/042—Drying on cylinders on two or more drying cylinders in combination with suction or blowing devices
- D21F5/046—Drying on cylinders on two or more drying cylinders in combination with suction or blowing devices using pocket ventilation systems
-
- 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
- D21F5/02—Drying on cylinders
- D21F5/04—Drying on cylinders on two or more drying cylinders
- D21F5/042—Drying on cylinders on two or more drying cylinders in combination with suction or blowing devices
Abstract
A web drying apparatus, e.g., for a paper web, includes several heatable drying cylinders arranged in at least one row with at least one respective endless loop drying wire and preferably arranged in two rows of cylinders with two respective wires. A wire guide roll is between and offset from two of the adjacent cylinders in the one row. The one endless loop dryer wire carries the web thereon on a first part of the web loop path from the first cylinder to the wire guide roll. There the web separates from the wire and travels to a second cylinder in the second row. The wire wraps around the wire guide roll and returns on a second part of the web loop path to the next cylinder in the first row, without supporting a web. On the path between the first and third cylinders and around the wire guide roll, the wire defines a loop. An air guide box and a blower are arranged within the loop. The air guide box produces a vacuum at the first part of the wire loop path for drawing the web against the wire. An air channel extends between the air guide box and the blower. At least one drive nozzle outlets into the air channel. The air channel draws air out of the first part of the loop path to create the vacuum there. The blower directs a stream of air through the wire, at the second part of the wire loop path, and then to a pocket outside the second loop part. The drive nozzle and the blower are supplied by independently controlled flows of blown air.
Description
` ` 2~82137 METHOD AND DEVICE FOR DRYING A FIBER WEB
The present invention relates to a method for drying a fiber web using a two wire and two row drying cylinder arrangement. The invention has S particular use in a papermaking machine. The invention concerns supplying air flows at, through or near different parts of the loop path of the dryer wire in the path between adjacent drying cylinders in one row for effective web control. The invention concerns a method and an apparatus for the carrying out such a method related to the air flows.
The prior art includes U.S. Patent No.
5,379,526 (Fig. 2) and Federal Republic of Germany 44 04 726 (Fig. 6).
Constructions in the above cited prior art have the following features in common:
1. Upon the web to be dried leaving a "first" drying cylinder, the web first travels a distance together with and is therefore supported by a first wire generally up to a wire guide roll that is off the row of the first drying cylinder wire and is toward the other row of drying cylinders. After leaving this guide roll, the web separates from the wire and travels unsupported to the following "second"
drying cylinder which is part of the other row of cylinders. Thus, the ~free web paths" or open draws, i.e., the web travel paths over which the web is not supported, are relatively short. This prevents the danger of fluttering of the web and tearing of the web. In regions where the paper web and/or the drying wire do not rest on a closed surface, for instance, a cylinder surface or a guide roll surface, they can dry more or less undisturbed.
The present invention relates to a method for drying a fiber web using a two wire and two row drying cylinder arrangement. The invention has S particular use in a papermaking machine. The invention concerns supplying air flows at, through or near different parts of the loop path of the dryer wire in the path between adjacent drying cylinders in one row for effective web control. The invention concerns a method and an apparatus for the carrying out such a method related to the air flows.
The prior art includes U.S. Patent No.
5,379,526 (Fig. 2) and Federal Republic of Germany 44 04 726 (Fig. 6).
Constructions in the above cited prior art have the following features in common:
1. Upon the web to be dried leaving a "first" drying cylinder, the web first travels a distance together with and is therefore supported by a first wire generally up to a wire guide roll that is off the row of the first drying cylinder wire and is toward the other row of drying cylinders. After leaving this guide roll, the web separates from the wire and travels unsupported to the following "second"
drying cylinder which is part of the other row of cylinders. Thus, the ~free web paths" or open draws, i.e., the web travel paths over which the web is not supported, are relatively short. This prevents the danger of fluttering of the web and tearing of the web. In regions where the paper web and/or the drying wire do not rest on a closed surface, for instance, a cylinder surface or a guide roll surface, they can dry more or less undisturbed.
2. The drying wire coming from the first drying cylinder in the first row wraps around the wire guide roll. There the web separates from the wire.
Then the wire travels from the guide roll back to the next "third" drying cylinder in the first row of cylinders, thereby forming a loop of the wire or a pocket. This loop contains a so called air guide box.
Then the wire travels from the guide roll back to the next "third" drying cylinder in the first row of cylinders, thereby forming a loop of the wire or a pocket. This loop contains a so called air guide box.
3. A sealing element supported by the air guide box prevents a layer of boundary air from being drawn into the loop. That layer of boundary air is carried along by the wire traveling over the first cylinder.
4. A second region of the wire loop extends from the guide roll to the third drying cylinder. In the second region, the drying wire is not covered by the web. A second flow of air is required in the second region to ventilate the so called "pocket", i.e., the region between the drying wire and the web of paper that is spaced away from the wire and that is traveling onto the next, i.e., third cylinder. The second flow of air blows through the drying wire. This so called pocket ventilation is effected in Fig. 6 of Federal Republic of Germany '726 by means of a blower which is arranged in the "run-off gussetH between the wire guide roll and the departing wire.
In many cases, it has been found that the known method of producing a vacuum along the first part of the wire loop, between the first cylinder and the guide roll and/or the known method of ventilating the pocket are not sufficient.
The operating speeds of modern papermaking machines have greatly increased in recent years. Some are now operating at a speed of 1800 m/min. and more.
This makes it necessary to increase the drying performance of each drying cylinder and thus to increase the amount of drying air necessary for removing the vapors that come off the web as it is dried. To do this, more air must be forced into the pocket through the uncovered drying wire. At the same time, despite the greater web travel speed, the web travel must be as stable and quiet as possible.
" ` 218~137 The object of the present invention is to obviate or mitigate the above disadvantages of the prior art.
A web drying apparatus, e.g., for a paper web, includes several heatable drying cylinders arranged in at least one row over which passes at least one endless loop drying wire, and the drying cylinders may be arranged in two rows of cylinders, each row with a respective drying wire. A wire guide roll is located between and offset from two of the adjacent cylinders in the one row. The one endless loop dryer wire carries the web thereon on a first part of the loop path from the first cylinder to the wire guide roll. There the web separates from the wire, and the web travels to a second cylinder in the second row. The wire does not travel to the second row but instead wraps around the wire guide roll and returns on a second part of the loop path to the next, third cylinder in the first row, without supporting a web along the second part. On the path between the first and third cylinders and around the wire guide roll, the wire defines a loop.
An air guide box and a blower are arranged within the wire loop. The air guide box produces a vacuum at the first part of the wire loop path for drawing the web against the wire. An air channel extends between the air guide box and the blower. At least one drive nozzle outlets into the air channel.
The air channel draws air out of the first part of the loop path to create the vacuum there. The blower directs a stream of air through the wire at the second part of the wire loop path, and the air blows into a pocket outside the second part of the wire loop path.
The drive nozzle and the blower are supplied by independently controlled flows of blown air.
A stream of air under pressure is fed solely to the blower in order to intensify the ventilation of the pocket in accordance with prevailing requirements.
Independently, a second stream of air makes the vacuum 2182~37 present in the first part of the loop path adjustable by means of a drive nozzle, again in accordance with the prevailing requirements. For this purpose, an air channel extends from the first part of the wire loop between the air guide box and the blower. This air channel is known from the aforementioned publications.
In the known arrangements, however, the same air channel not only draws air out of the first part of the loop path but also ventilates the pocket.
However, this may not ventilate the pocket to a sufficient extent. In contrast, the method and the apparatus of the invention provide the advantage that the blower can be acted upon by an air throughput which is as high as desired in order to intensify the ventilation of the pocket as much as desired. The division of the system into two individual systems is also advantageous because their individual functions can now be controlled individually.
BRIEF DESCRIPTION OF THE DRAWING
Other objects and features of the invention will be apparent from the following description and the accompanying drawing in which:
Fig. 1 is a diagrammatic longitudinal section through a two wire drying cylinder arrangement, showing one wire and two associated cylinders and a roll.
The paper web 7 to be dried and the drying wire 8 travel together off a first cylinder 4 in a first row of cylinders. On the side of the drying wire facing away from the drying cylinder 4, a layer of boundary air 9 is entrained. It is deflected by a seal 10 at the top of the air guide box 11 which is in the pocket defined by the adjacent top row cylinders 4, 5 and by the wire guide roll 6 which is off the first row of cylinders and toward the second row thereof. The drying wire and the paper web now travel together in the direction from the first cylinder 4 toward the drying wire guide roll 6.
.~
In many cases, it has been found that the known method of producing a vacuum along the first part of the wire loop, between the first cylinder and the guide roll and/or the known method of ventilating the pocket are not sufficient.
The operating speeds of modern papermaking machines have greatly increased in recent years. Some are now operating at a speed of 1800 m/min. and more.
This makes it necessary to increase the drying performance of each drying cylinder and thus to increase the amount of drying air necessary for removing the vapors that come off the web as it is dried. To do this, more air must be forced into the pocket through the uncovered drying wire. At the same time, despite the greater web travel speed, the web travel must be as stable and quiet as possible.
" ` 218~137 The object of the present invention is to obviate or mitigate the above disadvantages of the prior art.
A web drying apparatus, e.g., for a paper web, includes several heatable drying cylinders arranged in at least one row over which passes at least one endless loop drying wire, and the drying cylinders may be arranged in two rows of cylinders, each row with a respective drying wire. A wire guide roll is located between and offset from two of the adjacent cylinders in the one row. The one endless loop dryer wire carries the web thereon on a first part of the loop path from the first cylinder to the wire guide roll. There the web separates from the wire, and the web travels to a second cylinder in the second row. The wire does not travel to the second row but instead wraps around the wire guide roll and returns on a second part of the loop path to the next, third cylinder in the first row, without supporting a web along the second part. On the path between the first and third cylinders and around the wire guide roll, the wire defines a loop.
An air guide box and a blower are arranged within the wire loop. The air guide box produces a vacuum at the first part of the wire loop path for drawing the web against the wire. An air channel extends between the air guide box and the blower. At least one drive nozzle outlets into the air channel.
The air channel draws air out of the first part of the loop path to create the vacuum there. The blower directs a stream of air through the wire at the second part of the wire loop path, and the air blows into a pocket outside the second part of the wire loop path.
The drive nozzle and the blower are supplied by independently controlled flows of blown air.
A stream of air under pressure is fed solely to the blower in order to intensify the ventilation of the pocket in accordance with prevailing requirements.
Independently, a second stream of air makes the vacuum 2182~37 present in the first part of the loop path adjustable by means of a drive nozzle, again in accordance with the prevailing requirements. For this purpose, an air channel extends from the first part of the wire loop between the air guide box and the blower. This air channel is known from the aforementioned publications.
In the known arrangements, however, the same air channel not only draws air out of the first part of the loop path but also ventilates the pocket.
However, this may not ventilate the pocket to a sufficient extent. In contrast, the method and the apparatus of the invention provide the advantage that the blower can be acted upon by an air throughput which is as high as desired in order to intensify the ventilation of the pocket as much as desired. The division of the system into two individual systems is also advantageous because their individual functions can now be controlled individually.
BRIEF DESCRIPTION OF THE DRAWING
Other objects and features of the invention will be apparent from the following description and the accompanying drawing in which:
Fig. 1 is a diagrammatic longitudinal section through a two wire drying cylinder arrangement, showing one wire and two associated cylinders and a roll.
The paper web 7 to be dried and the drying wire 8 travel together off a first cylinder 4 in a first row of cylinders. On the side of the drying wire facing away from the drying cylinder 4, a layer of boundary air 9 is entrained. It is deflected by a seal 10 at the top of the air guide box 11 which is in the pocket defined by the adjacent top row cylinders 4, 5 and by the wire guide roll 6 which is off the first row of cylinders and toward the second row thereof. The drying wire and the paper web now travel together in the direction from the first cylinder 4 toward the drying wire guide roll 6.
.~
The paper web 7 travels unsupported from the drying wire guide roll 6 to the next in the web path, second drying cylinder of the second row of cylinders, which is not shown, but is known from the conventional two row design. See the above references incorporated by reference.
The air guide box 11 feeds the drive nozzle 17 with air via line 18 and channel 13a. The flow of air subsequently into the channel 23 creates and exerts vacuum on the wire loop first region 1. In this way, in the region 1, the paper web 7 is supported on the path between cylinder 4 and drying wire guide roll 6 by the drying wire 8. Furthermore, vapors which escape from the drying wire 8 in this region are transported away. These masses of air pass through the channel 23 into the region 3, where they can flow off undisturbed. A part thereof may possibly also enter the pocket T through the second part of the wire loop path.
A further part of the apparatus, namely the blower 15, has a separate air path from the part described above. The blower 15 is arranged at the "bottom" of the loop and therefore in the direct vicinity of the wire guide roll 6. It has a plurality of blow openings which are directed through the wire 8 into the pocket T. The blower 15 is provided with compressed air via a line 19 and channels 13 and 14.
However, it is also possible for the blower 15 to have a lateral compressed air connection of its own. In that case, no connecting channels 14 are required between the support tube 11 and the blower 15.
As another alternative, there may be a common source of compressed air connected to the lines 18 and 19 and their respective channels, and for control then, there would be an adjustable choke for the channel from the drive nozzle.
The gusset shaped region 2 of the loop (defined between blower 15, wire guide roll 6 and wire 8) is limited by sealing elements 16 and 17a. The one ` 2182137 seal 16 extends along the path of travel of the wire 8 and the other seal 17a extends along the wall of the wire guide roll 6.
The Figure shows a few other preferred, but not absolutely necessary, features. The air guide box 11 has a pipe 12 as a supporting element. The inside of the pipe is divided by a partition 22 into two halves which form the channels 13 and 13a. The channel 14 rigidly connects the blower 15 with the pipe 12.
Although the present invention has been described in relation to a particular embodiment thereof, many other variations and modifications and other uses will become apparent to those skilled in the art. It is preferred, therefore, that the present invention be limited not by the specific disclosure herein, but only by the appended claims.
The air guide box 11 feeds the drive nozzle 17 with air via line 18 and channel 13a. The flow of air subsequently into the channel 23 creates and exerts vacuum on the wire loop first region 1. In this way, in the region 1, the paper web 7 is supported on the path between cylinder 4 and drying wire guide roll 6 by the drying wire 8. Furthermore, vapors which escape from the drying wire 8 in this region are transported away. These masses of air pass through the channel 23 into the region 3, where they can flow off undisturbed. A part thereof may possibly also enter the pocket T through the second part of the wire loop path.
A further part of the apparatus, namely the blower 15, has a separate air path from the part described above. The blower 15 is arranged at the "bottom" of the loop and therefore in the direct vicinity of the wire guide roll 6. It has a plurality of blow openings which are directed through the wire 8 into the pocket T. The blower 15 is provided with compressed air via a line 19 and channels 13 and 14.
However, it is also possible for the blower 15 to have a lateral compressed air connection of its own. In that case, no connecting channels 14 are required between the support tube 11 and the blower 15.
As another alternative, there may be a common source of compressed air connected to the lines 18 and 19 and their respective channels, and for control then, there would be an adjustable choke for the channel from the drive nozzle.
The gusset shaped region 2 of the loop (defined between blower 15, wire guide roll 6 and wire 8) is limited by sealing elements 16 and 17a. The one ` 2182137 seal 16 extends along the path of travel of the wire 8 and the other seal 17a extends along the wall of the wire guide roll 6.
The Figure shows a few other preferred, but not absolutely necessary, features. The air guide box 11 has a pipe 12 as a supporting element. The inside of the pipe is divided by a partition 22 into two halves which form the channels 13 and 13a. The channel 14 rigidly connects the blower 15 with the pipe 12.
Although the present invention has been described in relation to a particular embodiment thereof, many other variations and modifications and other uses will become apparent to those skilled in the art. It is preferred, therefore, that the present invention be limited not by the specific disclosure herein, but only by the appended claims.
Claims (14)
1. A method for drying a fiber web in a drying section of a web drying machine, the method comprising:
moving a first endless dryer section wire into contact with the web and moving the wire with the web into contact with a first drying cylinder;
moving the wire in continuous contact with the web from the first cylinder to a wire guide roll defining a first part of a loop path of the wire;
separating the web from the wire at the wire guide roll;
moving the wire without the web around the wire guide roll and then from the wire guide roll to the next cylinder in the same row as the first cylinder defining a second part of the loop path of the wire, such that the wire moving around the wire guide roll defines a loop between the first and the next cylinders;
producing a vacuum in the first part of the loop path between the first cylinder and the wire guide roll for holding the web which is on the outside of the wire fast on the wire moving past the first part of the loop path, wherein the vacuum at the first part of the loop path is produced by producing a first controllable air stream at the first part of the loop path;
producing pressure by producing a second air stream for blowing air through the wire in the second part of the loop path in the region of travel of the wire from the wire guide roll toward the next cylinder, which blows air through the wire and out of the loop.
moving a first endless dryer section wire into contact with the web and moving the wire with the web into contact with a first drying cylinder;
moving the wire in continuous contact with the web from the first cylinder to a wire guide roll defining a first part of a loop path of the wire;
separating the web from the wire at the wire guide roll;
moving the wire without the web around the wire guide roll and then from the wire guide roll to the next cylinder in the same row as the first cylinder defining a second part of the loop path of the wire, such that the wire moving around the wire guide roll defines a loop between the first and the next cylinders;
producing a vacuum in the first part of the loop path between the first cylinder and the wire guide roll for holding the web which is on the outside of the wire fast on the wire moving past the first part of the loop path, wherein the vacuum at the first part of the loop path is produced by producing a first controllable air stream at the first part of the loop path;
producing pressure by producing a second air stream for blowing air through the wire in the second part of the loop path in the region of travel of the wire from the wire guide roll toward the next cylinder, which blows air through the wire and out of the loop.
2. The method of claim 1, wherein a vacuum is produced in the first part of the loop path by drawing air out of the first part by means of a drive nozzle.
3. The method of claim 1, wherein the web is directed from the wire guide roll to a third cylinder in another row of cylinders, and the web returns to the next cylinder on a path that passes and is spaced away from the second part of the loop path and outside the loop, defining a pocket between the second part of the loop path and the web moving toward the next cylinder in the first row.
4. Apparatus for drying a fiber web, including a drying section having a plurality of heatable drying cylinders arranged in at least one row, and a respective wire guide roll that is between two of the cylinders in the one row but is also out of the one row;
an endless loop dryer wire guided to wrap around a first one of the cylinders with the web against the cylinder, and the web being supported by the wire on the path of the wire from the first cylinder to the wire guide roll, which is a first part of a loop path of the wire;
the wire being guided to wrap around the wire guide roll and to then extend toward the next one of the drying cylinders in the one row for defining a second part of the loop path of the wire between the wire guide roll and the next cylinder, and the web being guided away from the wire at the wire guide roll, whereby the wire travels without the web between the wire guide roll and the next cylinder;
an air guide box located in the wire loop between the first and second parts of the loop path, the guide box being positioned and operable for producing a vacuum in the first part of the loop path, and the air guide box directing vacuum toward the first part of the loop path for drawing the web against the wire along the first part of the loop path;
a blower in the wire loop between the first and second parts of the loop path for blowing a stream of air through the wire along the second part of the loop path;
an air drive nozzle in the wire loop between the first and second parts of the loop path, an air channel leading away from the first part of the loop path for drawing air by ejection action out of the first part of the loop path, the nozzle having an outlet into the air channel;
the blower being acted on by blowing air independently of the air drive nozzle, whereby the vacuum drawn on the first part of the loop path and the pressure of the air through the second part of the loop path are independently controllable.
an endless loop dryer wire guided to wrap around a first one of the cylinders with the web against the cylinder, and the web being supported by the wire on the path of the wire from the first cylinder to the wire guide roll, which is a first part of a loop path of the wire;
the wire being guided to wrap around the wire guide roll and to then extend toward the next one of the drying cylinders in the one row for defining a second part of the loop path of the wire between the wire guide roll and the next cylinder, and the web being guided away from the wire at the wire guide roll, whereby the wire travels without the web between the wire guide roll and the next cylinder;
an air guide box located in the wire loop between the first and second parts of the loop path, the guide box being positioned and operable for producing a vacuum in the first part of the loop path, and the air guide box directing vacuum toward the first part of the loop path for drawing the web against the wire along the first part of the loop path;
a blower in the wire loop between the first and second parts of the loop path for blowing a stream of air through the wire along the second part of the loop path;
an air drive nozzle in the wire loop between the first and second parts of the loop path, an air channel leading away from the first part of the loop path for drawing air by ejection action out of the first part of the loop path, the nozzle having an outlet into the air channel;
the blower being acted on by blowing air independently of the air drive nozzle, whereby the vacuum drawn on the first part of the loop path and the pressure of the air through the second part of the loop path are independently controllable.
5. The apparatus of claim 4, wherein the air channel for moving air away from the first part of the loop path extends between the air guide box and the blower in the loop.
6. The apparatus of claim 4, wherein the cylinders are in a first and second row, and the wire guide roll is so placed that the web is guided from the wire guide roll to one of the cylinders in a second one of the rows and is guided to return from the second row of cylinders toward the next cylinder in the first row where the web meets the wire, so that the web travels free of the wire from the wire guide roll toward the second row of cylinders.
7. The apparatus of claim 6, wherein the wire guide roll is so placed that the web travels from the second row of cylinders to the next cylinder in the one row past the wire guide roll without contacting the wire at that roll.
8. The apparatus of claim 4, further comprising a sealing ledge between the air guide box and the wire coming from the first cylinder, the sealing ledge being for deflecting an air boundary layer that is entrained by the wire so that the air is deflected outside the wire loop for defining a vacuum space toward the first part of the loop path.
9. The apparatus of claim 4, further comprising a first separated supply of compressed air to the drive nozzle and a second separated supply of compressed air to the blower.
10. The apparatus of claim 9, wherein the first and second supplies of compressed air are via first and second respective channels to the drive nozzle and the blower, respectively.
11. The apparatus of claim 10, further comprising a common source of compressed air connected to the first and second channels.
12. The apparatus of claim 11, further comprising an adjustable choke in the channel for the drive nozzle.
13. The apparatus of claim 4, wherein the air guide box includes an outer wall that extends parallel to the wire in the first part of the loop path.
14. The apparatus of claim 4, wherein the nozzle is in the wire loop between the first and second parts of the loop path generally toward the wire guide roll and the air channel is above the nozzle and in the direction away from the wire guide roll.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE1995127289 DE19527289C2 (en) | 1995-07-26 | 1995-07-26 | Pocket ventilation method and an air guide box for performing the method in a two-wire dryer section of a papermaking machine |
| DE19527289.7 | 1995-07-26 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2182137A1 true CA2182137A1 (en) | 1997-01-27 |
Family
ID=7767828
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA 2182137 Abandoned CA2182137A1 (en) | 1995-07-26 | 1996-07-26 | Method and device for drying a fiber web |
Country Status (5)
| Country | Link |
|---|---|
| EP (1) | EP0756034A3 (en) |
| CN (1) | CN1147620A (en) |
| BR (1) | BR9604004A (en) |
| CA (1) | CA2182137A1 (en) |
| DE (1) | DE19527289C2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106181885A (en) * | 2016-09-09 | 2016-12-07 | 安徽山鹰纸业股份有限公司 | A kind of paper machine cadre steady paper bellows attaching/detaching apparatus |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE29613809U1 (en) * | 1996-08-09 | 1996-09-26 | Voith Sulzer Papiermasch Gmbh | Device for drying a fibrous web |
| US5832362A (en) * | 1997-02-13 | 1998-11-03 | The Procter & Gamble Company | Apparatus for generating parallel radiation for curing photosensitive resin |
| DE19850760A1 (en) | 1998-11-05 | 2000-05-11 | Voith Sulzer Papiertech Patent | Device for treating a material web |
| FI20050596A0 (en) * | 2005-06-06 | 2005-06-06 | Metso Paper Inc | Apparatus and method for sealing a pocket space existing between dryer cylinders in a paper machine or equivalent |
| WO2011076251A2 (en) * | 2009-12-21 | 2011-06-30 | Metso Paper, Inc. | Runnability component |
| FI124504B (en) * | 2011-03-08 | 2014-09-30 | Valmet Technologies Inc | Runnability Component and Method for Improving the Efficiency of the Running Component of a Paper Machine |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FI80103C (en) * | 1987-06-17 | 1990-04-10 | Valmet Paper Machinery Inc | Method and apparatus in the cylinder dryer of a paper machine, in which a double-weave pull is used |
| AT394740B (en) * | 1990-08-21 | 1992-06-10 | Andritz Ag Maschf | METHOD AND DEVICE IN A HIGH-SPEED PAPER MACHINE MULTI-CYLINDER DRYER |
| FI95732C (en) * | 1992-01-13 | 1996-03-11 | Valmet Paperikoneet Oy | Device in the dryer section of a paper machine |
| DE4404726C2 (en) * | 1993-03-11 | 1996-04-25 | Voith Gmbh J M | Pocket ventilation in a two-wire cylinder dryer |
-
1995
- 1995-07-26 DE DE1995127289 patent/DE19527289C2/en not_active Expired - Fee Related
-
1996
- 1996-06-18 EP EP96109726A patent/EP0756034A3/en not_active Withdrawn
- 1996-07-24 BR BR9604004A patent/BR9604004A/en active Search and Examination
- 1996-07-25 CN CN 96110297 patent/CN1147620A/en active Pending
- 1996-07-26 CA CA 2182137 patent/CA2182137A1/en not_active Abandoned
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106181885A (en) * | 2016-09-09 | 2016-12-07 | 安徽山鹰纸业股份有限公司 | A kind of paper machine cadre steady paper bellows attaching/detaching apparatus |
| CN106181885B (en) * | 2016-09-09 | 2017-05-31 | 安徽山鹰纸业股份有限公司 | A kind of steady paper bellows attaching/detaching apparatus of paper machine cadre |
Also Published As
| Publication number | Publication date |
|---|---|
| BR9604004A (en) | 1998-06-09 |
| EP0756034A3 (en) | 1998-01-28 |
| EP0756034A2 (en) | 1997-01-29 |
| DE19527289C2 (en) | 2000-09-14 |
| DE19527289A1 (en) | 1997-01-30 |
| CN1147620A (en) | 1997-04-16 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FZDE | Discontinued |
Effective date: 19990726 |
|
| FZDE | Discontinued |
Effective date: 19990726 |