CN1280479C - Method and device for removing broke in plant for drying of web-formed material - Google Patents
Method and device for removing broke in plant for drying of web-formed material Download PDFInfo
- Publication number
- CN1280479C CN1280479C CN 02815375 CN02815375A CN1280479C CN 1280479 C CN1280479 C CN 1280479C CN 02815375 CN02815375 CN 02815375 CN 02815375 A CN02815375 A CN 02815375A CN 1280479 C CN1280479 C CN 1280479C
- Authority
- CN
- China
- Prior art keywords
- sheet shape
- slewing rollers
- shape material
- sheet
- shell
- 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
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Classifications
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21G—CALENDERS; ACCESSORIES FOR PAPER-MAKING MACHINES
- D21G9/00—Other accessories for paper-making machines
- D21G9/0063—Devices for threading a web tail through a paper-making machine
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
- D21F7/00—Other details of machines for making continuous webs of paper
- D21F7/04—Paper-break control devices
Abstract
A method and a device for removing broke, after a web break or the like, in a plant (1) enclosed in a housing (2), for drying of a web-formed material (12), comprising blow boxes arranged in a plurality of drying decks. The web-formed material (12) changes its machine direction between the drying decks, when passing over turning rolls (4), which during normal operation are running freely but which during, for example, threading are driven, against which the web-formed material (12) is pressed by the tension in the web only. An opening (3a) is made in the wall (2a) of the housing (2), such that at least one turning roll (4) becomes accessible, and a press roller, a press wheel, or the like, (5) is applied such that the web-formed material (12) is pressed against this turning roll (4). Thereafter, the web-formed material (12) is fed forward by running the drive system of the turning rolls (4) at a low speed, and the web-formed material (12) is fed out of the housing (2) through the opening (3a).
Description
Technical field
The present invention relates to a kind of when take place that sheet material disconnects or analogue after be used for drying sheet shape material, the method during cleaning in the equipment of pulp web or paper web preferably, this equipment comprises the blow box that is arranged in a plurality of dry platforms.This sheet shape material material floats on the blow box of bottom in dry platform, and these blow boxs blow out the heat treatment air at their upside towards the sheet shape material material, so that dry this material.Between these dry platforms slewing rollers are arranged, the sheet shape material material only is pressed against on these slewing rollers by the tension force in the sheet material.This sheet shape material material by at the driven roller in exit to passing drying equipment.In normal work period, the slewing rollers that are arranged between the dry platform freely turn round, but these slewing rollers are provided with driver, for example when by this equipment, use these drivers.
The invention still further relates to the device that is used to implement this method.
Background technology
Sheet shape material material such as paper or paper pulp promptly blows hot-air towards this sheet shape material material and carries out drying usually in discontiguous mode, perhaps by the surface of Contact Heating, mainly is that cylinder carries out drying.At drum dried sheet shape material material, for example in the process of paper, this sheet shape material material is heated by hot cylinder, and by the tension force of this sheet material and/or by paper grade (stock) felt or papermaking wire-cloth, this sheet shape material material is pressed against on this hot cylinder.
In contact drying not, this sheet shape material material moves around in a plurality of dry platforms usually, floats on the blow box of bottom, blows out the heat treatment air at the upside of bottom blow box towards the sheet shape material material, so that dry this material.This sheet shape material material by the driven roller in the exit of drying equipment to or analog pass through drying equipment.
Between dry platform, this sheet shape material material changes its machine direction on slewing rollers, and this sheet shape material material only is pressed against on the slewing rollers by the tension force in the sheet material.In normal work period, these slewing rollers freely turn round.Yet these slewing rollers are provided with drive system, use this drive system when especially sheet material connects after startup.
The prerequisite that driven is operated whole drying equipment is that this sheet material is continuous from the outlet that enters the mouth.When this sheet material disconnected, this prerequisite did not exist, and because the drying equipment that uses is very big usually at present, so after sheet material disconnected, the sheet shape material material that has hundreds of rice was stayed in the drying equipment.Only cut-off point and the outlet between that part of can being drawn out by pair of rolls in the exit.
The drying of all paper or paper pulp need be discharged a large amount of steams from material.In order to create admissible working environment and conserve energy as much as possible, therefore this drying equipment is enclosed in the case of thermal insulation board and so on for example, hereinafter referred to as shell, it almost completely seals, wherein control is supplied air and is discharged air, make that especially the leakage that produces is inwardly passed through from the outside by any leakage of shell aperture generation when inside or outside feeding paper web or analog.
When after for example sheet material disconnects, removing useless sheet shape material material, the cleaning that is called drying equipment herein, obviously, this shell is an obstacle, on the contrary, must change shell so that it can clean fully, and can with so as far as possible effectively and the timesaving mode manually clean it.
When sheet material disconnects, the normal driving stops, and this sheet material no longer with at the driven roller in exit to any contact arranged, and because at present the drying equipment that uses is very big usually, thus the disconnection of sheet material can cause partly in warm and wet environment on a large scale, the clean operation of time and effort consuming.
Under the situation of breaking, attempt catches leading edge or trailing edge only can cause this sheet material some other local disconnection usually by mechanical device, forms quite little fragment usually.
Employed a kind of method be lifting platform (console) go up to arrange a driven roller to or have the driven roller of contact bogie wheel, and use so-called useless sheet shape material material to remove folder the sheet shape material material pulled out from drying equipment.Yet, because actual cause, this so-called useless sheet shape material material removes folder must be placed on edge apart from the shell lifting platform farthest of drying equipment, and this is necessary for manually this sheet material being pulled out one section distance that is equivalent to the perpendicular lifting platform width of the wall of shell.Since in fact only with from its marginal portion near this sheet material, so consider its width and its not enough intensity, more than operation is had any problem.Because this sheet material is damp and hot, so this work also may be tedious.
Summary of the invention
Main purpose of the present invention provides a kind of timesaving method, is used for cleaning in the equipment of drying sheet shape material after the sheet material disconnection occurring.
Second purpose of the present invention provides a kind of method, after the sheet material disconnection occurring, makes to have better working environment when cleaning in the equipment of drying sheet shape material.
The 3rd purpose of the present invention provides a kind of reliable device with low cost of investment, is used for cleaning in the equipment of drying sheet shape material after the sheet material disconnection occurring.
The 4th purpose of the present invention provides a kind of method, is used for cleaning in the equipment of drying sheet shape material after the sheet material disconnection occurring, and this method can not be used for existing drying equipment under the situation of rebuilding considerably.
In addition, an object of the present invention is to propose a kind of device of when implementing this method, using of being suitable for.
The present invention relates to a kind of working as after the sheet material disconnection occurring, be used for drying sheet shape material, the method when preferably cleaning in the equipment of pulp web or paper web, this equipment comprises the blow box that is arranged in a plurality of dry platforms.This sheet shape material material floats on the blow box of bottom, and these blow boxs blow out the heat treatment air at their upside towards the sheet shape material material, so that dry this material.Between these dry platforms, when the sheet shape material material changes its machine direction during by slewing rollers, these slewing rollers freely turn round in normal work period, but are driven during for example sheet material connects, and this sheet shape material material only is pressed against on these slewing rollers by the tension force in the sheet material.In normal work period, this sheet shape material material the driven roller that is arranged in the exit to or the help of analog under be drawn out by drying equipment.
In the method according to the invention, in the shell of this drying equipment of sealing, open a mouth, make to contact at least one slewing rollers, and use pressure roller or pinch roller, make this sheet shape material material be pressed against on these slewing rollers.After this,, realize this sheet shape material material forward feeding, and this sheet shape material material is by the charging outside this shell of this opening by the drive system of low-speed running slewing rollers.
The invention still further relates to the device that is used for implementing at drying equipment said method, this drying equipment fully or is substantially fully surrounded by a shell.
This device comprises at least one window or analog in shell, can be by this window near at least one slewing rollers, and arrange at least one pressure roller or pinch roller, make that this sheet shape material material can be pressed against on these come-at-able slewing rollers under it helps.
Therefore, the present invention relates to a kind of after appearing at sheet material and disconnecting, when the equipment that is used for drying sheet shape material cleans, the method and apparatus when being easy to act as most in the drier of the sheet material that contains gas dry pulp web.The drying of this sheet shape material material is at least roughly carried out in the shell that surrounds this drying equipment fully and substantially fully.
Remove the method for useless sheet shape material material after the sheet material disconnection is taking place in known being used for, this sheet material must manually be pulled out long or short distance.This work is heavy and annoying.
Therefore, according to the present invention, the system that is present in the drying equipment is used in suggestion on the contrary, marches forward to the useless sheet shape material material of this sheet material to drive slewing rollers.Yet, owing to this sheet material no longer is pressed against on the slewing rollers by web tension, so these slewing rollers that only turn round can not successfully be realized above-mentioned purpose.
Yet this can realize by open a mouth in a wall of shell, like this can be near at least one slewing rollers.The width of this opening must surpass each adopted width of this sheet material.
Use pressure roller or pinch roller by this opening, make this sheet shape material material be pressed against on these come-at-able slewing rollers.Use a plurality of pressure rollers or pinch roller to have superiority, but this term " roller " even be used for comprises the same long element of width with this sheet material, and to use the identical pressure roller of single fundamental sum slewing rollers length be within the scope of the invention.
Certainly, to select opening be important in order to be suitable for position that this sheet material disconnects, like this can with effective and efficient manner implement desired march forward to.The application of this pressure roller or analog can advantageously manually be implemented by one or more operator, but can also be implemented by mechanical device within the scope of the invention, for example passes through compression cylinder.
After this, the drive system by the low-speed running slewing rollers realizes marching forward to this sheet shape material material.By using pressure roller or analog, can between these slewing rollers and this sheet material, obtain enough contact forces, to allow spurring this sheet material forward.Simultaneously, this sheet shape material material is by the charging outside this shell of this opening.
Lifting platform advantageously is arranged near the shell, makes the operator can rise to corresponding height, to carry out cleaning.Make by the design lifting platform between the wall of shell and lifting platform, to produce a space, can allow the sheet shape material material that gives up, promptly remain in the sheet shape material material in the equipment, fall down downwards near the basic straight line of shell.Although in fact Fei sheet shape material material length may be quite long, it also can easily be handled.
When needs, can repeat this method at two or more openings.
Description of drawings
Now, by coming to describe in more detail the present invention with reference to the accompanying drawings, wherein:
Fig. 1 schematically shows the suitable embodiment details when using the method according to this invention;
Fig. 2 schematically show the operator how according to described method from the useless sheet shape material material of the outside feeding of drying equipment;
Fig. 3 schematically shows the second suitable embodiment details when using the method according to this invention;
Fig. 4 schematically show the operator how according to described the 3rd embodiment from the useless sheet shape material material of the outside feeding of drying equipment; With
Fig. 5 schematically shows the 4th suitable embodiment details when using the method according to this invention.
The specific embodiment
Fig. 1 schematically shows the part of the drying equipment 1 that is used for paper making pulp.This drying equipment 1 is closed in the shell 2 that comprises wall 2a.This wall 2a is provided with window 3, thus can be by the slewing rollers 4 of opening 3a contact drying equipment 1.At these window 3 places, having on the slewing rollers 4 from the pressure roller 5 of the support 6 hinged suspensions of the wall 2a of the shell 2 on this window 3.By mechanical spring 7, this pressure roller 5 is positioned at the resting position that rises a little from these slewing rollers 4.
This pressure roller 5 is fixed on the tube element 8, and this tube element 8 is connected to support 6 by lateral direction element 9 and contact 10.This tube element 8 is suitable for cooperating with bar 11 or analog and extends lever, has therefore increased the power that pressure roller 5 can press slewing rollers 4 and be positioned at the paper pulp sheet 12 on the slewing rollers.
Fig. 2 shows operator 13 and stands on the lifting platform 14 with floor 14a and guardrail 14b.Operator 13 upwards argues for the sake of arguing 11, therefore pressure roller 5 is pressed against on the slewing rollers 4, makes pulp web 12 by the outside feeding of opening 3a.Between the floor 14a of the wall 2a of shell 2 and lifting platform 14 space 15 is arranged, useless sheet shape material material 12a can pass through the downward feeding in this space.Dividing plate 16 prevents operator 13 this space 15 of entering into because of carelessness.
Fig. 3 schematically shows the part of the drying equipment 1 that is used for paper pulp, and it is corresponding in part shown in Figure 1.Difference is that this pressure roller 5 is fixed to the end of element 8b, the other end of this element 8b by from the wall 2a that is fixed to shell, support 6 a little above compression cylinder 31 effects of hanging of any supporting member 36.
Fig. 4 is similar to Fig. 2 and shows operator 13 and stand on the lifting platform 14 with floor 14a and railing 14b.Yet in Fig. 4, operator 13 provides the movable fixture 11c of a termination with pressure roller 5.By this movable fixture 11c, the top edge by using opening 3a or in its vicinity support is set as supporting-point, this pressure roller 5 is pressed against on the slewing rollers 4.This movable fixture 11 is provided with support lug 46, with the fixing position of pressure roller 5.
Fig. 5 schematically shows the part of the drying equipment 1 that is used for paper pulp, and it is corresponding in Fig. 1 and part shown in Figure 3.Difference is that this pressure roller 5 is fixed to an end of the first arm 59, and the other end of this first arm is connected to the contact 10 on the support 6.Pressure roller 5 is also connected to the piston of the compression cylinder 51 among the wall 2a that is suspended on shell by second arm 57.
Now by describing mode of operation of the present invention with reference to figure 1 and Fig. 2.
When sheet material occurring and disconnect, the most approaching outlet of pulp web 12 be drawn out shell 2 automatically than the rear section, and the part the most early of approaching inlet keeps.Because outlet is usually located at downward place farthest, this means that remaining pulp web must be removed in the top of drying equipment 1.
14 operators 13 raise step by step by lifting platform, and check drying device 1 at continuous more high altitude by window 3.
When arriving dry platform, stay height on the slewing rollers 4 at sheet material 12, pressure roller 5 is applied to slewing rollers 4, and sheet material 12 is by the outside feeding of corresponding opening 3a.This can realize like this, that is, must manually remove by at first cutting off sheet material 12, this means the remainder that is positioned at this sheet material 12 under the described height at slewing rollers 4 places, perhaps by with sheet material 12 partially folded twice by the outside feeding of opening 3a.Identical method can be used for the other end of this drying device 1, is used to remove part remaining after cutting off sheet material 12.
Useless sheet shape material material 12a allows to drop by space 15, and handles in the ground in workshop with suitable manner.
Certainly, the present invention is not limited to the above embodiments, and can change in many ways in the scope of ensuing claims.
Like this, for example, described method can be removed the folder combination with traditional useless sheet shape material material, and this useless sheet shape material material is removed the side that folder is positioned at lifting platform 14, its on wall 14b away from shell 2 towards.Like this, 5 of described pressure rollers are used in simple and reliable mode this sheet material being marched forward to crossing the required distance of lifting platform 14.
Claims (12)
1. one kind is used for after sheet material takes place disconnecting, the method that cleans at the equipment that is used for drying sheet shape material, wherein
This sheet shape material material floats on the blow box below by being enclosed in the shell and comprising the drying equipment that is arranged in the blow box in a plurality of dry platforms, and these blow boxs side thereon blow out the heat treatment air towards the sheet shape material material, so that dry described material,
When by slewing rollers, the sheet shape material material between dry platform changes its machine direction, these slewing rollers
Freely turn round in normal work period, but these slewing rollers
During for example sheet material connects, be driven,
This sheet shape material material only is pressed against on these slewing rollers by the tension force in the sheet material, and
This sheet shape material material the driven roller that is arranged in the exit to or the help of analog under be drawn out by drying equipment,
It is characterized in that,
In shell, open a mouth, make to contact at least one slewing rollers,
Use pressure roller or pinch roller, make this sheet shape material material be pressed against on the described slewing rollers,
Drive system by the low-speed running slewing rollers realizes marching forward to this sheet shape material material, and useless sheet shape material material is by the feeding outside shell of this opening.
2. method according to claim 1 is used for the equipment of pulp web or paper web.
3. method according to claim 1 is characterized in that, uses two or more pressure rollers or pinch roller, makes this sheet shape material material be pressed against the slewing rollers that can contact.
4. method according to claim 3 is characterized in that, two or more operators on lifting platform operate one or more pressure roller or pinch roller respectively, makes this sheet shape material material be pressed against the slewing rollers that can contact.
5. method according to claim 3 is characterized in that each mechanical device is operated one or more pressure roller or pinch roller, makes this sheet shape material material be pressed against and can contact slewing rollers.
6. according to claim 4 or 5 described methods, it is characterized in that useless sheet shape material material is by the feeding and pass through space between this shell and the lifting platform downwards to shell outside of this opening.
One kind when sheet material taking place disconnect after, the device that cleans at the equipment (1) that is used for drying sheet shape material (12), wherein, this drying equipment (1)
Be enclosed in the shell (2), comprise
A plurality of dry platforms wherein, float on this sheet shape material material (12) blow box below, and these blow boxs side thereon blow the heat treatment air towards sheet shape material material (12), so that dry described material, and
Slewing rollers (4), when this sheet shape material material (12) by between these dry platforms the time, this sheet shape material material (12) changes its machine direction on these slewing rollers, and this sheet shape material material (12) tension force by sheet material is pressed against on these slewing rollers (4),
Thereby these slewing rollers (4)
Freely turn round in normal work period, still
During for example sheet material connects, be driven,
And
It is right to be provided with driven roller, and it is arranged in the exit that this sheet shape material material (12) leaves this drying equipment (1), this sheet shape material material (12) by described driven roller to pulling out this drying equipment (1),
It is characterized in that,
At least one window (3) covers opening (3a) in shell (2), can contact at least one slewing rollers (4) by this opening,
At least one pressure roller or pinch roller (5) are arranged like this, are made this sheet shape material material (12) can be pressed against this slewing rollers that can contact (4) under the help of pressure roller or pinch roller.
8. device according to claim 7 is used for the equipment (1) of pulp web or paper web is cleaned.
9. device according to claim 7 is characterized in that, two or more pressure rollers or pinch roller (5) are provided with like this, make this sheet shape material material (12) can be pressed against this slewing rollers that can contact (4) under the help of pressure roller or pinch roller.
10. device according to claim 8, it is characterized in that, locate along the wall (2a) of this shell (2) lifting platform (14) movably at these slewing rollers (4), two or more operators (13) can use suitable device (11) to operate one or more pressure roller or pinch roller (5) from this lifting platform, make this sheet shape material material (12) be pressed against on these slewing rollers that can contact (4).
11. device according to claim 8 is characterized in that, mechanical device (31) is suitable for operating one or more pressure roller or pinch roller (5), makes this sheet shape material material (12) be pressed against on these slewing rollers that can contact (4).
12. according to claim 10 or 11 described devices, it is characterized in that, be suitable for receiving the useless sheet shape material material (12b) that passes through this opening (3a) feeding outside this shell (2) in the space (15) between this shell (2) and the lifting platform, and downwards by this space (15).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SE0102027A SE519197C2 (en) | 2001-06-08 | 2001-06-08 | Process and apparatus for cleaning in a plant for drying a web-shaped material |
| SE01020270 | 2001-06-08 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1539042A CN1539042A (en) | 2004-10-20 |
| CN1280479C true CN1280479C (en) | 2006-10-18 |
Family
ID=20284403
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02815375 Expired - Lifetime CN1280479C (en) | 2001-06-08 | 2002-05-31 | Method and device for removing broke in plant for drying of web-formed material |
Country Status (5)
| Country | Link |
|---|---|
| EP (1) | EP1436459B1 (en) |
| CN (1) | CN1280479C (en) |
| BR (1) | BR0210277B1 (en) |
| SE (1) | SE519197C2 (en) |
| WO (1) | WO2002101143A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109811578A (en) * | 2019-03-21 | 2019-05-28 | 贵州赤天化纸业股份有限公司 | A kind of lever broken remover |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FI7064U1 (en) | 2005-01-31 | 2006-05-12 | Metso Paper Inc | Devices for removing a broken pulp web from a cell dryer and cell drying management platform |
| FI118924B (en) * | 2005-12-05 | 2008-05-15 | Metso Paper Inc | Apparatus and method for removing a broken pulp web from a cell dryer |
| SE535634C2 (en) | 2010-11-16 | 2012-10-23 | Andritz Tech & Asset Man Gmbh | Cellulose dryer having lower blow boxes and method of drying a web of cellulose pulp |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA896636A (en) * | 1968-12-27 | 1972-03-28 | C. Williams Stanley | Broke chamber |
| SE7709332L (en) * | 1977-08-18 | 1979-02-19 | Svenska Flaektfabriken Ab | DEVICE AT A PLANT FOR DRYING A PREFERABLY A PANEL-shaped, AIR-CARRIED MATERIAL |
| SE510707C2 (en) * | 1997-10-15 | 1999-06-14 | Flaekt Ab | Plant for drying a web of materials |
-
2001
- 2001-06-08 SE SE0102027A patent/SE519197C2/en not_active IP Right Cessation
-
2002
- 2002-05-31 CN CN 02815375 patent/CN1280479C/en not_active Expired - Lifetime
- 2002-05-31 BR BRPI0210277-3A patent/BR0210277B1/en not_active IP Right Cessation
- 2002-05-31 WO PCT/SE2002/001044 patent/WO2002101143A1/en active IP Right Grant
- 2002-05-31 EP EP02733752A patent/EP1436459B1/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109811578A (en) * | 2019-03-21 | 2019-05-28 | 贵州赤天化纸业股份有限公司 | A kind of lever broken remover |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2002101143A1 (en) | 2002-12-19 |
| SE0102027L (en) | 2002-12-09 |
| EP1436459A1 (en) | 2004-07-14 |
| BR0210277A (en) | 2004-07-20 |
| SE519197C2 (en) | 2003-01-28 |
| CN1539042A (en) | 2004-10-20 |
| SE0102027D0 (en) | 2001-06-08 |
| EP1436459B1 (en) | 2007-03-07 |
| BR0210277B1 (en) | 2012-05-15 |
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Granted publication date: 20061018 |