CN102733244B - Method and structure for preventing paper scraping in drying box of dissolving pulp machine - Google Patents
Method and structure for preventing paper scraping in drying box of dissolving pulp machine Download PDFInfo
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- CN102733244B CN102733244B CN201210240436.9A CN201210240436A CN102733244B CN 102733244 B CN102733244 B CN 102733244B CN 201210240436 A CN201210240436 A CN 201210240436A CN 102733244 B CN102733244 B CN 102733244B
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- paper web
- drying box
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- 238000001035 drying Methods 0.000 title claims abstract description 40
- 238000007790 scraping Methods 0.000 title claims abstract description 26
- 238000000034 method Methods 0.000 title claims abstract description 20
- 229920000875 Dissolving pulp Polymers 0.000 title claims abstract description 18
- 230000008676 import Effects 0.000 claims description 11
- 238000007665 sagging Methods 0.000 claims description 7
- 238000004140 cleaning Methods 0.000 abstract description 3
- 238000003475 lamination Methods 0.000 abstract 1
- 230000000903 blocking effect Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 229920002488 Hemicellulose Polymers 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
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Abstract
The invention provides a method and a structure for preventing paper scraping in a drying box of a dissolving pulp machine. The method comprises that in the drying conveying process, an upward support force is added when the dryness of a conveying paper web is between 53% and 60%, the drying box comprises a drying box body, conveying paper webs, a paper web inlet, a paper web outlet, turning rollers and tuyeres, wherein the conveying webs between the paper web inlet and the paper web outlet sequentially wind the turning rollers arranged alternatively in a horizontal manner to form a plurality of laminations distributed up and down, carrier rollers are arranged between the turning rollers and the tuyeres, and the highest points of the carrier rollers and the lowest points of the turning rollers are on the same horizontal plane. Compared with the prior art, the method and the structure for preventing paper scraping in the drying box of the dissolving pulp machine have the advantages that the friction between the paper webs, a guide plate and the tuyeres can be reduced, the paper scraping is avoided, and the problems that the travel speed can not be quickened, paper furs caused by scraping paper fall into the drying box so as to block a radiator, so that the temperature in the drying box is not uniform, and the cleaning workload is increased and the like can be solved.
Description
Technical field
The present invention relates to field of papermaking, a kind ofly specifically prevent method and the structure thereof of in dissolving pulp trigger drying box, scraping paper.
Background technology
Paper scraped by pulp machine drying box is the technical barrier that puzzlement pulp machine is manufactured paper with pulp always.Dissolving pulp hemicellulose level is very low, and slurry paper degree is very low, and pulpboard own is manufactured paper with pulp just very difficult, and in drying box, scrape paper, easily cause production normally not run, production efficiency is low.If generation is scraped paper and will easily be caused disconnected paper, the speed of a motor vehicle can not be put forward; And the paper hair produced falls in drying box, blocking radiator, causes drying box internal temperature uneven, increases cleaning work amount, so how to solve dissolving pulp trigger drying box, to scrape the problem of paper tape very urgent.
Summary of the invention
For the deficiencies in the prior art, now provide a kind of workable, method and structure thereof of preventing from scraping in dissolving pulp trigger drying box paper of effectively avoiding scraping paper.
Technical scheme of the present invention is, a kind ofly prevents the method for scraping paper in dissolving pulp trigger drying box, in dry course of conveying, is provided with to the conveying paper web of later roller side-lower paper web throughput direction the support force preventing from carrying paper web sagging.In the technical program, when carrying paper web through later roller revolution because conveying paper web moisture is large, paper web is heavier can produce a downward inertia, conveying paper web is made to be easy to occur scraping paper, even disconnected paper, now in later roller side-lower conveying web direction, provide support force upwards to conveying paper web, can reduce sagging, avoid causing through guide plate and tuyere scraping paper.
As preferably, described support force is provided by one in carrying roller, supporting plate or air-flow.Adopt this preferred version, bracing or strutting arrangement both can have been adopted to provide support power, air-flow also can be adopted to provide support power, can according to circumstances make optimal selection in actual use procedure.
As preferably, when the mass dryness fraction of conveying paper web is below 60%, be provided with support force.Adopt this preferred version, can ensure to provide upwards support force to conveying paper web in due course, avoid the appearance of scraping paper.
As preferably, the mass dryness fraction of paper web is carried to be provided with support force when 52%-60%.To adopt after this preferred version can more accurately, more suitably time force, avoid the appearance of scraping paper.
Adopt said method, a kind of drying box structure preventing from scraping in dissolving pulp trigger drying box paper is provided, described drying box comprises drying box casing, conveying paper web, paper web import, paper web exports, later roller and tuyere, described paper web import, the later roller be arranged alternately about the conveying paper web priority pile warp between paper web outlet forms some stratiforms distributed up and down, described being arranged alternately refers to that left and right two is turned one's head roller and staggered up and down, the peak of the minimum point of later roller up and the later roller in below is in same level, describedly later be provided with carrying roller between roller and tuyere, the minimum point of the peak of described carrying roller and later roller is in same level.
Adopt after such scheme, the fiber that can solve due to dissolving pulp is shorter, and containing larger moisture, paper web is heavier, produces certain stroke, sagging, can contact friction through guide plate and tuyere, and what cause scrapes paper phenomenon.Due at tuyere with later add carrying roller between roller, can make to carry paper web to hold paper web sagging in operation through the process that later roller turns to, reduce the friction of paper web and guide plate, tuyere, avoid scraping paper.
As preferably, described carrying roller is provided with two and first and second turns one's head in roller side-lower conveying web direction after being separately positioned on paper web import.After adopting this preferred version, make paper web in the process of conveying, along with the increase of the mass dryness fraction of paper web, certain impact can be born, tuyere can be entered through guide plate stably, avoid the generation of scraping paper.
As preferably, described carrying roller is smooth roll.This preferred version selects smooth roll, and when ensure that from later roller rotary head, paper web enters the stationarity of tuyere through guide plate, decreases the resistance in transmission, is not scraping paper.
The beneficial effect that the present invention is compared with prior art produced is: due at tuyere with later add carrying roller between roller, provide the support force preventing from carrying paper web sagging, make to carry paper web to pass through the process that later roller turns to and hold paper web sagging in operation, reduce the friction of paper web and guide plate, tuyere, avoid scraping paper, solve and can not put forward the speed of a motor vehicle, the paper hair produced falls in drying box, blocking radiator, causes drying box internal temperature uneven, increases the problems such as cleaning work amount.
Accompanying drawing explanation
Accompanying drawing 1 is structural representation of the present invention;
Accompanying drawing 2 is local of the present invention power schematic diagrames;
Accompanying drawing 3 is partial structurtes schematic diagrames of the present invention.
Shown in figure:
1, paper web import, 2, tuyere, 3, conveying paper web, 4, carrying roller, 4-1, Left-side support power, 4-2, right side carrying roller, 5, paper web outlet, 6, drying box casing, 7, later roller.
Detailed description of the invention
Below in conjunction with accompanying drawing, a kind of detailed description of the invention of scraping the method for paper in dissolving pulp trigger drying box that prevents of the present invention is described in detail below.
As accompanying drawing 1, Fig. 2, shown in Fig. 3, describedly a kind ofly prevent method and the structure thereof of in dissolving pulp trigger drying box, scraping paper, described drying box comprises drying box casing 6, conveying paper web 3, paper web import 1, paper web outlet 5, later roller 7 and tuyere 2, described paper web import 1, the later roller 7 be arranged alternately about the conveying paper web 3 priority pile warp between paper web outlet 5 forms some stratiforms distributed up and down, described being arranged alternately refers to that left and right two is turned one's head roller about 7 and staggered, the peak of the minimum point of later roller 7 up and the later roller 7 in below is in same level, describedly later be provided with carrying roller 4 between roller 7 and tuyere 2, the minimum point of the peak of described carrying roller 4 and later roller 7 is in same level, the tuyere 2 blowing to conveying paper web 3 is turned one's head evenly to be provided with between roller 7 in left and right in drying box casing 6, described carrying roller 4 is provided with two and is separately positioned on paper web import 1 rear first and second turns one's head on roller 7 side-lower conveying paper web 3 direction, described carrying roller 4 is smooth roll.
In the present embodiment, described conveying paper web 3 enters drying box inside from paper web import 4, first by later roller 7 conversion direction on right side, held up by right side carrying roller 4-2, paper web mass dryness fraction is now 53%-54%, through guide plate and tuyere 2, drying is carried out to it, be transported to left side later roller 7 place conversion direction, paper web mass dryness fraction is now 56%-57%, paper web is made to hold up then to enter tuyere 2 through guide plate stably by Left-side support power 4-1, along with the minimizing of conveying paper web 3 moisture, paper web can bear certain impact, tuyere 2 can be entered stably through guide plate, scrape paper to obtain and solve thoroughly.
In the above-described embodiments, preferred forms of the present invention is described, obviously, under inventive concept of the present invention, still can make a lot of change, as increased carrying roller 4 when mass dryness fraction is also below 60% when roller 7 is turned one's head in conveying paper web arrival the 3rd on later roller 7 side-lower conveying paper web 3 direction.At this, should illustrate, any change made under inventive concept of the present invention all will fall within the scope of protection of the present invention.
Claims (5)
1. prevent a method of scraping paper in dissolving pulp trigger drying box, it is characterized in that: in dry course of conveying, be provided with to the conveying paper web of later roller side-lower paper web throughput direction the support force preventing from carrying paper web sagging, described support force is provided by carrying roller; Carrying roller (4) is provided with two and is separately positioned on paper web import (1) and first and second turns one's head on roller (7) side-lower conveying paper web (3) direction afterwards.
2. according to claim 1ly a kind ofly prevent the method for scraping paper in dissolving pulp trigger drying box, it is characterized in that: when the mass dryness fraction of conveying paper web is below 60%, be provided with support force.
3. according to claim 1ly a kind ofly prevent the method for scraping paper in dissolving pulp trigger drying box, it is characterized in that: the mass dryness fraction of conveying paper web is provided with support force when 52%-60%.
4. one kind prevents the drying box structure of scraping paper in dissolving pulp trigger drying box for method described in claim arbitrary in claims 1 to 3, it is characterized in that, described drying box comprises drying box casing (6), conveying paper web (3), paper web import (1), paper web outlet (5), later roller (7) and tuyere (2), described paper web import (1), the later roller (7) be arranged alternately about conveying paper web (3) the priority pile warp between paper web outlet (5) forms some stratiforms distributed up and down, described being arranged alternately refers to that left and right two is turned one's head roller (7) and staggered up and down, the peak of the minimum point of later roller (7) up and the later roller (7) in below is in same level, it is characterized in that: be describedly later provided with carrying roller (4) between roller (7) and tuyere (2), the minimum point of the peak of described carrying roller (4) and later roller (7) is in same level.
5. according to claim 4ly a kind ofly prevent the drying box structure of scraping paper in dissolving pulp trigger drying box, it is characterized in that: described carrying roller (4) is smooth roll.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210240436.9A CN102733244B (en) | 2012-07-12 | 2012-07-12 | Method and structure for preventing paper scraping in drying box of dissolving pulp machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210240436.9A CN102733244B (en) | 2012-07-12 | 2012-07-12 | Method and structure for preventing paper scraping in drying box of dissolving pulp machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102733244A CN102733244A (en) | 2012-10-17 |
| CN102733244B true CN102733244B (en) | 2015-04-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210240436.9A Active CN102733244B (en) | 2012-07-12 | 2012-07-12 | Method and structure for preventing paper scraping in drying box of dissolving pulp machine |
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| Country | Link |
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| CN (1) | CN102733244B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112007831B (en) * | 2020-08-31 | 2023-03-21 | 温州职业技术学院 | Gluing and drying device of examination paper book gluing and binding production line |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE684139C (en) * | 1937-11-27 | 1939-11-23 | Svenska Flaektfabriken Ab | Drying system for webs made of paper, cellulose, fabric or similar materials |
| US2460042A (en) * | 1945-01-13 | 1949-01-25 | Rice Barton Corp | Method of making cockle paper |
| CH280046A (en) * | 1950-01-28 | 1951-12-31 | Naville Raoul | Conveyor device for webs of paper, cellulose felt, fabric or the like. |
| US2821285A (en) * | 1956-04-09 | 1958-01-28 | Ross Engineering Of Canada Ltd | Conveyor system for pulp dryers |
| DE2646814C2 (en) * | 1976-10-16 | 1985-03-28 | Lindauer Dornier Gmbh, 8990 Lindau | Dryer for material webs guided over endlessly circulating conveyor belts |
| FR2486641A2 (en) * | 1980-07-11 | 1982-01-15 | Greenbank Cast Basalt Eng | Drying appts. for continuous lengths of paper - where staggered chambers feed compressed air to either side of paper web |
| FI92421B (en) * | 1992-03-19 | 1994-07-29 | Valmet Paper Machinery Inc | Method for Air Drying of Substances, Nozzle Blower for an Air Dryer and Cellulose Dryer |
| FI102981B (en) * | 1997-08-18 | 1999-03-31 | Valmet Corp | Method and apparatus for drying a pulp web |
| FI119153B (en) * | 2006-11-14 | 2008-08-15 | Metso Paper Inc | End portion of an air dryer, air dryer, procedure in the end portion of an air dryer and use of a fan |
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- 2012-07-12 CN CN201210240436.9A patent/CN102733244B/en active Active
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| CN102733244A (en) | 2012-10-17 |
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Denomination of invention: The invention relates to a method for preventing scraping in a drying box of a dissolving pulp machine and a structure thereof Effective date of registration: 20211229 Granted publication date: 20150401 Pledgee: Bank of Jining Limited by Share Ltd. Qufu branch Pledgor: SHANDONG TAIYANGZHIYE Co.,Ltd. Registration number: Y2021980016992 |
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Date of cancellation: 20230609 Granted publication date: 20150401 Pledgee: Bank of Jining Limited by Share Ltd. Qufu branch Pledgor: SHANDONG TAIYANGZHIYE Co.,Ltd. Registration number: Y2021980016992 |
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Effective date of registration: 20240902 Address after: 272100 No.66 Xiguan Street, Yanzhou District, Jining City, Shandong Province Patentee after: SHANDONG TAIYANGZHIYE Co.,Ltd. Country or region after: China Patentee after: Shandong International Paper sun paperboard Co.,Ltd. Patentee after: Shandong Wanguo sun food packaging material Co.,Ltd. Patentee after: Guangxi Taiyang paper board Co.,Ltd. Address before: 272100 Friendship Road 1, Jining, Shandong, Yanzhou Patentee before: SHANDONG TAIYANGZHIYE Co.,Ltd. Country or region before: China |