CN102041706B - Device for drying paper with segmented heating metal tapes - Google Patents
Device for drying paper with segmented heating metal tapes Download PDFInfo
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- CN102041706B CN102041706B CN2010105500072A CN201010550007A CN102041706B CN 102041706 B CN102041706 B CN 102041706B CN 2010105500072 A CN2010105500072 A CN 2010105500072A CN 201010550007 A CN201010550007 A CN 201010550007A CN 102041706 B CN102041706 B CN 102041706B
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Abstract
The invention relates to a device for drying paper with segmented heating metal tapes, which comprises a large-diameter drying cylinder, a metal heating tape device and a humid air suction box, wherein the metal heating tape device is uniformly distributed on the outer cylindrical surface of the large-diameter drying cylinder below paper feed guide rolls and paper delivery guide rolls, the metal heating tape device comprises metal tapes, guide and tensioning driving rolls erected in the metal tapes and electromagnetic inductive heaters, two of the guide and tensioning driving rolls are pressed on the outer cylindrical surface of the large-diameter drying cylinder at the same diameter, the other driving roll is connected with a motor, and one electromagnetic inductive heater is mounted in each metal tape. By using the invention, paper can be coated on the large-diameter drying cylinder by means of the segmented electromagnetic inductive heating metal tapes so as to heat and dry the paper, thereby reducing the heat resistance between a heating body and the surface of the paper, improving the drying efficiency, reducing the length of a drying part and minimizing the difference between both sides of the dried paper. Besides, the drying and shrinkage of the paper are restricted, thereby increasing the tensile strength of the paper.
Description
Technical field
The present invention relates to the drying means and the equipment of paper machine, more specifically, but relate to a kind of device of segmentation heating metal strip dry paper.
Background technology
In the wet papermaking process, behind mechanical dehydration, still contain large quantity of moisture in the page, these moisture must be removed through drying means.Traditional drying means is to use drying cylinder and dries page with steam as heat medium, and because of this method is used paper mill low-pressure steam as rich as Croesus, thereby operating cost is lower, and is used widely in paper-making industry.But use this method, need use a plurality of cylinder group just can reach into the requirement of paper mass dryness fraction in paper dryer portion usually, and along with the raising of paper machine speed, dry amount increases, and under the prerequisite that does not increase the drying cylinder diameter, must increase drying cylinder quantity and can satisfy dry demand.Yet increase the prolongation that drying cylinder quantity just means Dryer Section of Paper Machine, the result causes the length of whole paper machine to prolong, thereby makes infrastructure investment strengthen.Also because the increase of drying cylinder quantity makes the operation and maintenance cost of Dryer Section of Paper Machine also increase accordingly.
In order to address this problem, can adopt the major diameter drying cylinder to replace the conventional drying cylinder of part.In production practices, be widely used in the production process of book page or leaf paper than major diameter drying cylinder such as Yankee dryer; In addition, Yankee dryer also is used to other paper kind, especially is suitable for the paper kind not high to the dual character difference requirements.Because of Yankee dryer can significantly improve the smoothness and the glossiness of pasting drying cylinder side paper, but also cause dried page to have tangible two sides poor.In order to address this problem, people such as Gruber-Nadlinger have proposed to replace with pressure vapour cover the method for common vapour cover in their patent PCT/EP05/051286.Although this method can be lowered into the two sides difference of paper to a certain extent and improve the heat transfer efficiency between drying cylinder and page, this method is subject to relatively still smaller drying cylinder of diameter.For the drying cylinder of major diameter or super-large diameter, it is so ineffective that pressure vapour cover just seems.And the fabric that this method is used complicated multilayer structure comes dry page with the combination of back side cooling device, and one side can't two-sided heating page, and partial heat energy will directly conduct to back side cooling device by the drying cylinder side through heat and cause heat loss on the other hand.
Summary of the invention
The objective of the invention is to deficiency, but propose a kind of device that can effectively improve paper dryer efficient, shortening Dryer Section of Paper Machine length, improve the segmentation heating metal strip dry paper of page surface physical properties to prior art.
The present invention realizes that the technical scheme of purpose is:
But a kind of device of segmentation heating metal strip dry paper; Moving case by major diameter drying cylinder, METAL HEATING PROCESS belting and humid air suction constitutes; On the major diameter drying cylinder outer rim cylinder below paper feed deflector roll and the paper delivery deflector roll, be uniformly distributed with the METAL HEATING PROCESS belting is installed; This METAL HEATING PROCESS belting is made up of the guiding tensioning driven roller and the electromagnetic induction heater of support dress in metal tape, the metal tape; Wherein two same footpaths of guiding tensioning driven roller are fitted on the major diameter drying cylinder outer rim cylinder, and one of them driven roller is connected with motor, and every strip metal band inside all is equipped with electromagnetic induction heater.
And the METAL HEATING PROCESS belting is three that are uniformly distributed with.
And, after each METAL HEATING PROCESS belting, all be provided with an open area, on this regional major diameter drying cylinder, place the humid air suction and move case.
And said metal tape is that steel material is manufactured, and is endless belt, and its thickness is 0.8-1.0mm.
And said electromagnetic induction heater frequency is more than 2kHz.
And the guiding tensioning driven roller of support dress is three in the said metal tape, and it is adjustable to set one of them end positions in three driven rollers.
Advantage of the present invention and beneficial effect are:
1, this device adopts three road metal tapes directly to be coated on paper surface, paper surface and dryer surface thermal contact resistance are reduced, thereby heat transfer efficiency is improved.
2, this device can make paper segmentation under the coating of metal tape carry out dry run; In each section, water vapour does not leave paper immediately and causes the cooling to paper, rests on after the moisture vaporization in the paper and can form higher pressure in the paper hole; When paper leaves the coating district; Water vapour just leaves page is drained by the humid air exhaust system, therefore, can improve the bulk of paper to a certain extent.
3, the metal tape of this device adopts electromagnetic induction heating, can improve the smoothness and the glossiness on paper two sides simultaneously, and for some paper kind, can remove press polish from and handle, thus the production cost of reduction paper.And, if the length of corresponding increase metal tape element number or metal tape, just applicable on the super-large diameter drying cylinder.
To sum up, the present invention proposes with multistage metal tape subregion coat be close to page on the super-large diameter drying cylinder method with dry page, make dried page two sides drop to minimum in the difference aspect smoothness and the glossiness.In addition, because the contraction of page when drying is restricted, its physical strength also can be improved.Because use the major diameter drying cylinder, thus the length of drying section can be reduced, thus reduce the length of whole paper machine; Can to reduce the two sides of the dry page of institute poor because use this invention again, thereby it can be used for paper and cardboard to the strictness of two sides performance difference requirements.
Description of drawings
Fig. 1 is to use the structural representation of the drying system of apparatus of the present invention.
The specific embodiment
Below in conjunction with accompanying drawing and through specific embodiment the present invention is made further detailed description, following examples are descriptive, are not determinate, can not limit protection scope of the present invention with this.
But a kind of device of segmentation heating metal strip dry paper is as shown in Figure 1, moves case 5 by major diameter drying cylinder 3, METAL HEATING PROCESS belting and humid air suction and constitutes.Paper feed end and paper delivery end at the paper 1 of major diameter drying cylinder are separately installed with paper feed deflector roll 2 and paper delivery deflector roll 4.On the major diameter drying cylinder outer rim cylinder below paper feed deflector roll and the paper delivery deflector roll, be uniformly distributed with the METAL HEATING PROCESS belting is installed; This METAL HEATING PROCESS belting is made up of three guiding tensioning driven rollers 6, electromagnetic induction heaters 7 of support dress in metal tape 8, the metal tape; Wherein two same footpaths of three guiding tensioning driven rollers are fitted on the major diameter drying cylinder outer rim cylinder; One of them is the driven roller that is connected with motor, and the speed of service of motor and the major diameter drying cylinder speed of service are complementary; The 3rd driven roller is idler roller.It is adjustable to set one of them end positions in three driven rollers, with the tension metal band and prevent the metal tape sideslip.Accompanying drawing is depicted as three METAL HEATING PROCESS beltings that are uniformly distributed with in the present embodiment, and an electromagnetic induction heater can be installed in every strip metal band inside, heating this metal tape, thus the page face that heating contacts with metal tape.Every strip metal band and supporting three driven rollers and electromagnetic induction heater are placed in and form a relatively independent subsystem in the mechanism, and this subsystem can integral body move apart dryer surface when needed.
After each METAL HEATING PROCESS belting, all be provided with an open area; On this regional major diameter drying cylinder, place the humid air suction and move case; So that the water vapour that flashes off in the paper is moved apart drying system rapidly, the humid air suction moves case and through pipeline and vavuum pump connection water vapour is discharged into recovery system.
Described major diameter drying cylinder adds the drying cylinder of thermal medium heating with steam or other; Described metal tape is that steel material is manufactured, and its thickness is 0.8-1.0mm, is endless belt; Electromagnetic induction heater can be settled in metal tape inside, and this electromagnetic induction heater frequency is more than 2kHz.When the requirement of production paper mass needs or machine dried ability when needing, available this electromagnetic induction heater heats metal tape, thereby forms the situation to the two-sided heating of paper.
Operation principle of the present invention is:
Paper changes traffic direction behind the paper feed deflector roll, contact and be heated with major diameter drying cylinder outer rim, and get into by formed coating district between metal tape and the major diameter drying cylinder, and in this coated the district, paper was heated (single or double), and its internal moisture is partly vaporized.Can only overflow from coating district's periphery because of water vapour, coat district's internal water steam pressure and be greater than ambient pressure.After paper left the coating district, because of the open sides pressure reduces suddenly, the bulk of paper can be followed water vapour flash distillation effusion and increase, and the water vapour of from paper, overflowing moves case by the humid air suction and siphons away, and sends into humid air and reclaims and exhaust system.
Relating to the content that the present invention is not described in detail is prior art.
Claims (6)
1. but the device of a segmentation heating metal strip dry paper; It is characterized in that: move case by major diameter drying cylinder, METAL HEATING PROCESS belting and humid air suction and constitute; On the major diameter drying cylinder outer rim cylinder below paper feed deflector roll and the paper delivery deflector roll, be uniformly distributed with the METAL HEATING PROCESS belting is installed; This METAL HEATING PROCESS belting is made up of the guiding tensioning driven roller and the electromagnetic induction heater of support dress in metal tape, the metal tape; Wherein two diameters of guiding tensioning driven roller are identical and be fitted on the major diameter drying cylinder outer rim cylinder, and one of them driven roller of these two guiding tensioning driven rollers is connected with motor, and every strip metal band inside all is equipped with electromagnetic induction heater.
2. but the device of segmentation heating metal strip dry paper according to claim 1 is characterized in that: the METAL HEATING PROCESS belting is three that are uniformly distributed with.
3. but the device of segmentation heating metal strip dry paper according to claim 1 and 2 is characterized in that: after each METAL HEATING PROCESS belting, all be provided with an open area, on this regional major diameter drying cylinder, place the humid air suction and move case.
4. but the device of segmentation heating metal strip dry paper according to claim 1 is characterized in that: said metal tape is that steel material is manufactured, and is endless belt, and its thickness is 0.8-1.0mm.
5. but the device of segmentation heating metal strip dry paper according to claim 1 is characterized in that: said electromagnetic induction heater frequency is more than 2kHz.
6. but the device of segmentation heating metal strip dry paper according to claim 1 and 2 is characterized in that: the guiding tensioning driven roller of support dress is three in the said metal tape, and it is adjustable to set one of them end positions in three driven rollers.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105500072A CN102041706B (en) | 2010-11-18 | 2010-11-18 | Device for drying paper with segmented heating metal tapes |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105500072A CN102041706B (en) | 2010-11-18 | 2010-11-18 | Device for drying paper with segmented heating metal tapes |
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| Publication Number | Publication Date |
|---|---|
| CN102041706A CN102041706A (en) | 2011-05-04 |
| CN102041706B true CN102041706B (en) | 2012-01-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010105500072A Expired - Fee Related CN102041706B (en) | 2010-11-18 | 2010-11-18 | Device for drying paper with segmented heating metal tapes |
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| CN (1) | CN102041706B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103103856B (en) * | 2012-12-27 | 2015-09-23 | 齐鲁工业大学 | Paper electromagnetic drying heat blower |
| CN105667083B (en) * | 2016-01-21 | 2018-05-01 | 成都印钞有限公司 | A kind of paper drying process and its drying device for intaglio printing press paper collection part |
| CN207496126U (en) * | 2017-03-29 | 2018-06-15 | 西安精密印刷机械研究院有限公司 | A kind of corrugated board drying and shaping equipment and corrugated paper board production line |
| CN112254485B (en) * | 2020-11-03 | 2022-07-29 | 山东北方造纸机械有限公司 | High-efficient environmental protection drying device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1379834A (en) * | 1999-10-27 | 2002-11-13 | 斯托拉·科帕伯格斯·伯格斯拉格斯公司 | Device and method for manufacturing paper or cardboard |
| CN1662706A (en) * | 2002-06-24 | 2005-08-31 | 沃伊斯造纸专利有限公司 | Device for coating and drying the front and back of a web, particularly one consisting of paper or cardboard |
| DE102004027938A1 (en) * | 2004-06-08 | 2005-12-29 | Voith Paper Patent Gmbh | Drying section of papermaking plant with heated cylinder contacting one side of web, includes additional heating on opposite side, to minimize product curling tendency |
| CN101463576A (en) * | 2007-12-21 | 2009-06-24 | 美卓造纸机械公司 | Belt assembly and paper- or board making machine comprising the belt assembly |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2874473B1 (en) * | 2004-08-19 | 2008-10-10 | Michel Boulard | METHOD AND DEVICE FOR THERMALLY PROCESSING FLEXIBLE MATERIAL |
| DE102005000793A1 (en) * | 2005-01-05 | 2006-07-13 | Voith Paper Patent Gmbh | support band |
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2010
- 2010-11-18 CN CN2010105500072A patent/CN102041706B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1379834A (en) * | 1999-10-27 | 2002-11-13 | 斯托拉·科帕伯格斯·伯格斯拉格斯公司 | Device and method for manufacturing paper or cardboard |
| CN1662706A (en) * | 2002-06-24 | 2005-08-31 | 沃伊斯造纸专利有限公司 | Device for coating and drying the front and back of a web, particularly one consisting of paper or cardboard |
| DE102004027938A1 (en) * | 2004-06-08 | 2005-12-29 | Voith Paper Patent Gmbh | Drying section of papermaking plant with heated cylinder contacting one side of web, includes additional heating on opposite side, to minimize product curling tendency |
| CN101463576A (en) * | 2007-12-21 | 2009-06-24 | 美卓造纸机械公司 | Belt assembly and paper- or board making machine comprising the belt assembly |
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| Publication number | Publication date |
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| CN102041706A (en) | 2011-05-04 |
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