CN104790244A - Turbulence roller - Google Patents

Turbulence roller Download PDF

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Publication number
CN104790244A
CN104790244A CN201510198047.8A CN201510198047A CN104790244A CN 104790244 A CN104790244 A CN 104790244A CN 201510198047 A CN201510198047 A CN 201510198047A CN 104790244 A CN104790244 A CN 104790244A
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CN
China
Prior art keywords
annular friction
roller
roller core
turbulent flow
friction sheet
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN201510198047.8A
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Chinese (zh)
Other versions
CN104790244B (en
Inventor
侯顺利
林晓林
王海琛
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Shaanxi University of Science and Technology
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Shaanxi University of Science and Technology
Priority date (The priority date 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 date listed.)
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Publication date
Application filed by Shaanxi University of Science and Technology filed Critical Shaanxi University of Science and Technology
Priority to CN201510198047.8A priority Critical patent/CN104790244B/en
Publication of CN104790244A publication Critical patent/CN104790244A/en
Application granted granted Critical
Publication of CN104790244B publication Critical patent/CN104790244B/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • DTEXTILES; PAPER
    • D21PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21FPAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
    • D21F1/00Wet end of machines for making continuous webs of paper
    • D21F1/02Head boxes of Fourdrinier machines
    • D21F1/026Details of the turbulence section
    • DTEXTILES; PAPER
    • D21PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21FPAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
    • D21F1/00Wet end of machines for making continuous webs of paper
    • D21F1/04Head boxes of cylinder machines
    • DTEXTILES; PAPER
    • D21PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21FPAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
    • D21F1/00Wet end of machines for making continuous webs of paper
    • D21F1/06Regulating pulp flow

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  • Paper (AREA)

Abstract

The invention discloses a turbulence roller. The turbulence roller comprises a roller core, the roller core is sleeved with multiple annular friction pieces detachably, a spacer sleeve is detachably installed between every two adjacent annular friction pieces, the roller core, the annular friction pieces and the spacer sleeves are arranged coaxially, multiple protruding strips are distributed on both surfaces of each annular friction piece, the protruding strips are arrayed in a radialized mode on the surfaces of each annular friction piece, and the protruding strips of the two opposite surfaces of every two adjacent annular friction pieces are arranged in a staggered mode. By means of the turbulence roller, turbulence which is small in size and high in intensity can be generated, large transverse flow does not occur, when the deviation of basis weight in cross direction of paper sheets is adjusted through dilution water, the range of transverse diffusion of the dilution water added at certain points can not be excessively large, so that accurate adjustment is achieved, the transverse array of fibers in the paper sheets can be increased, and therefore the tensile force difference between the longitudinal direction and the transverse direction can be decreased.

Description

A kind of turbulent flow roller
Technical field
The present invention relates to the turbulence device in the head box of paper machine and similar machinery thereof, be specifically related to a kind of turbulent flow roller, for disperseing the fibrous suspension in head box, to form uniform page or web of fiber.
Background technology
Head box is a key device of paper machine, plays key effect for the page that mass of manufacturing paper with pulp is good.Turbulent flow roller belongs to the neat and well spaced element of head box, and its key effect is exactly produce suitable turbulent flow, and the fleeces agglomerate in slurry is dispersed, and slurry stream also will be kept stable simultaneously.
The head box that at present, low-speed paper machine is used mostly is doctor-roll head box.Doctor-roll is hollow roll, and its roll surface is dispersed with many through holes.Slurry can produce larger lateral flow when flowing through doctor-roll, although can loosen collagen fibre group, slurry stream can be made stable not.Need in its downstream to arrange longer buffering area, but longer buffering area can make again dispersed fleeces agglomerate again wad a quilt with cotton poly-for this reason, thus affect the evenness of page.Particularly when in pulp distributor with dilution water adjusting device time, fixed point dilution water and main body slurry stream are when flowing through roomy casing, and the stirring again through doctor-roll produces larger lateral flow, greatly will weaken the effect that dilution water regulates.Have experiment verified in existing doctor-roll head box, adopt dilution water to regulate have little effect.
Summary of the invention
The object of the present invention is to provide a kind of turbulent flow roller, to overcome the defect that above-mentioned prior art exists, the present invention can produce the high turbulent flow of size small intensity, and larger lateral flow can not be produced, when using dilution water to regulate page quantitative difference of banner, the scope of the dilution water horizontal proliferation that fixed point adds would not be excessive, thus realize precisely regulating.
For achieving the above object, the present invention adopts following technical scheme:
A kind of turbulent flow roller, comprise roller core, roller core is removably arranged with some annular friction sheets outward, often all removably spacer sleeve is installed between adjacent two annular friction sheets, described roller core, annular friction sheet and spacer sleeve are coaxially arranged, two surfaces of annular friction sheet are all distributed with some raised lines, and raised line arranges radially on the surface of annular friction sheet, and the raised line mutual dislocation on relative two faces of adjacent two annular friction sheets is arranged.
Further, annular friction sheet is set in outside roller core equably.
Further, the distance often between adjacent two annular friction sheets is 10 ~ 30mm.
Further, the shape of cross section of described raised line is triangle, and leg-of-mutton any limit is all less than 4mm.
Further, the circumferencial direction of described raised line annularly friction plate is uniformly distributed.
Further, described roller core is hollow roller core or solid roller core.
Further, the thickness of each annular friction sheet is 1 ~ 3mm.
Further, the material of annular friction sheet and spacer sleeve is adhesive.
Compared with prior art, the present invention has following useful technique effect:
The present invention is compared with doctor-roll, by annular friction sheet sheathed on roller core, two surfaces of simultaneously annular friction sheet are all distributed with some raised lines, this structure not only can produce the turbulent flow that size is little and intensity is high, and larger lateral flow can not be produced, when using dilution water to regulate page quantitative difference of banner, the scope of the dilution water horizontal proliferation added of fixing a point would not be excessive, thus realize precisely regulating.Raised line mutual dislocation on adjacent annular friction plate apparent surface is arranged, make the microturbulence of generation can transmit more farther, be conducive to uniformly dispersing fibre, and more lateral turbulence can be produced, fluid is made to produce the high-frequency teeter of small size, can increase the cross direction profiles of fiber like this, the vertical lateral pull dwindling into paper is poor.Annular friction sheet and roller core do not need to weld; but fix with spacer sleeve; thermal deformation can not be caused; and be conducive to scale and modularized production; annular friction sheet and spacer sleeve are all removably mounted on roller core simultaneously; when there is the situation that wearing and tearing or other needs are changed, can dismantle easily and changing parts.
Further, the section shape and size of raised line affects size and the propagation distance of turbulent flow, and the shape and the size that rationally arrange raised line are conducive to forming more equally distributed high-strength microturbulence.
Further, the thickness of distance between adjacent two annular friction sheets and annular friction sheet is rationally set, can under the prerequisite producing more equally distributed high-strength microturbulence, slurry can not be made to miscarry raw larger lateral flow, and turbulent flow roller can be made to have a suitable weight.
Further, annular friction sheet and spacer sleeve adopt adhesive to make, to keep clean surface better.
Accompanying drawing explanation
Fig. 1 is longitudinal sectional view of the present invention;
Fig. 2 is transverse sectional view of the present invention;
Fig. 3 be in the present invention raised line at the partial schematic diagram of annular friction sheet surface distributed;
Fig. 4 is adjacent annular Friction Disk Surface raised line shape and position view in the present invention.
Wherein, 1, roller core; 2, spacer sleeve; 3, annular friction sheet; 4, raised line.
Detailed description of the invention
Below in conjunction with accompanying drawing, the present invention is described in further detail:
See Fig. 1 to Fig. 4, a kind of turbulent flow roller, comprise roller core 1, described roller core 1 is hollow roller core or solid roller core, roller core 1 is outer is removably arranged with some annular friction sheets 3, described annular friction sheet 3 is set in outside roller core 1 equably, distance often between adjacent two annular friction sheets 3 is 10 ~ 30mm, the thickness of each annular friction sheet 3 is 1 ~ 3mm, often between adjacent two annular friction sheets 3, spacer sleeve 2 is all removably installed, described roller core 1, annular friction sheet 3 and spacer sleeve 2 are coaxially arranged, two surfaces of annular friction sheet 3 are all evenly distributed with some raised lines 4, the shape of cross section of raised line 4 is triangle, and leg-of-mutton any limit is less than 4mm, raised line 4 annularly friction plate 3 arranges radially, and raised line 4 mutual dislocation on relative two faces of adjacent two annular friction sheets 3 is arranged.
Below implementation process of the present invention is described in further detail:
The present invention comprises a roller core 1, roller core 1 is hollow roller core or solid roller core, multiple annular friction sheet 3 is had at roller core 1 overcoat, spacer sleeve 2 is provided with between annular friction sheet, spacer sleeve 2 and roller core 1, annular friction sheet 3 are coaxial, by non-solder as screw thread is stepped up at two ends, or the conventional method such as key connection makes spacer sleeve 2, annular friction sheet 3 interfixes, without relative motion with roller core 1.The present invention is laterally arranged in the slurry in head box casing, configures corresponding bearing arrangement and transmission device.Slurry is from when flowing through between annular friction sheet 3, and along with rotary motion of the present invention, due to the existence of speed difference, annular friction sheet 3 pairs of slurries can produce friction and shear action, thus in slurry stream turbulization.
Because two surfaces of annular friction sheet 3 are provided with raised line 4, turbulence intensity can be improved, flow because slurry is parallel to annular friction sheet 3, compared with doctor-roll, larger lateral flow can not be produced, when using dilution water to regulate page quantitative difference of banner, the scope of the dilution water horizontal proliferation added of fixing a point would not be excessive, thus realize precisely regulating.
The shape of cross section of raised line 4 affects intensity and the uniformity of turbulent flow, the cross section of raised line 4 is designed to triangle and is conducive to the microturbulence of annular friction sheet 3 near surface to transmit more farther, so that it is more even to make turbulent flow distribute.Annular friction sheet 3 in the present invention and spacer sleeve 2 can also adopt adhesive to make, to keep clean surface better.
The mutual alignment relation of raised line 4 not only affects being uniformly distributed of turbulent flow, but also affects flow direction.Raised line 4 mutual alignment on adjacent two annular friction sheet 3 surfaces is set to intervening portion by the present invention, instead of just to or symmetric position, turbulent flow not only can be made to transmit more farther, turbulent flow is distributed more even, the more important thing is the flow effect that can produce and swing, make more fiber transversely arranged, thus improve the defect that in existing page, fiber longitudinal arrangement is more, make page indulge lateral performance more consistent, generally state with vertical lateral pull extent.
It is to starch the needs producing high-strength microturbulence in stream that any length of side of the cross-sectional triangle of raised line 4 is less than 4 millimeters.The size impact of raised line 4 size of turbulent flow, and research shows, in fibrous suspension, the ideal dimensions of high-strength microturbulence should below 4 millimeters.
Additionally by change rotary speed of the present invention, turbulence intensity can be changed, to adapt to the needs of different material and product.The present invention overcomes many drawbacks that existing doctor-roll head box turbulent flow is oversize, turbulence intensity skewness, lateral flow large, starch stream instability, effectively can not use the quantitative difference of banner of dilution water adjustment page.But also can increase the transversely arranged of fiber in page, thus it is poor to reduce vertical lateral pull.

Claims (8)

1. a turbulent flow roller, it is characterized in that, comprise roller core (1), roller core (1) is removably arranged with some annular friction sheets (3) outward, often between adjacent two annular friction sheets (3), spacer sleeve (2) is all removably installed, described roller core (1), annular friction sheet (3) and spacer sleeve (2) are coaxially arranged, two surfaces of annular friction sheet (3) are all distributed with some raised lines (4), raised line (4) arranges radially on the surface of annular friction sheet (3), and raised line (4) mutual dislocation on relative two faces of adjacent two annular friction sheets (3) is arranged.
2. a kind of turbulent flow roller according to claim 1, is characterized in that, annular friction sheet (3) is set in roller core (1) outward equably.
3. a kind of turbulent flow roller according to claim 2, is characterized in that, the distance often between adjacent two annular friction sheets (3) is 10 ~ 30mm.
4. a kind of turbulent flow roller according to claim 1, is characterized in that, the shape of cross section of described raised line (4) is triangle, and leg-of-mutton any limit is all less than 4mm.
5. a kind of turbulent flow roller according to claim 1, is characterized in that, the circumferencial direction of described raised line (4) annularly friction plate (3) is uniformly distributed.
6. a kind of turbulent flow roller according to claim 1, is characterized in that, described roller core (1) is hollow roller core or solid roller core.
7. a kind of turbulent flow roller according to claim 1, is characterized in that, the thickness of each annular friction sheet is 1 ~ 3mm.
8. a kind of turbulent flow roller according to claim 1, is characterized in that, the material of annular friction sheet (3) and spacer sleeve (2) is adhesive.
CN201510198047.8A 2015-04-23 2015-04-23 A kind of turbulent flow roller Expired - Fee Related CN104790244B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201510198047.8A CN104790244B (en) 2015-04-23 2015-04-23 A kind of turbulent flow roller

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201510198047.8A CN104790244B (en) 2015-04-23 2015-04-23 A kind of turbulent flow roller

Publications (2)

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CN104790244A true CN104790244A (en) 2015-07-22
CN104790244B CN104790244B (en) 2016-08-24

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109629307A (en) * 2018-12-29 2019-04-16 周柏太 A kind of paper machine headbox
CN111218837A (en) * 2020-03-09 2020-06-02 合肥宏图彩印有限公司 Multi-mode head box
CN114080278A (en) * 2019-06-07 2022-02-22 Ipco德国有限责任公司 Distribution roller for a dispensing apparatus

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU715684A1 (en) * 1978-01-31 1980-02-15 Центральный Научно-Исследовательский И Проектно-Конструкторский Институт По Проектированию Оборудования Для Целлюлозно-Бумажной Промышленности Head box of paper-making machine
US4285767A (en) * 1978-03-13 1981-08-25 Beloit Corporation Headbox having adjustable flow passages
JPS59157394A (en) * 1983-02-22 1984-09-06 製紙技術研究組合 Paper stock dispersing apparatus in headbox
BR8604170A (en) * 1986-09-01 1988-05-03 Gunnar Nocolai Edvard Krogh EQUIPMENT FOR THE PREPARATION OF CELLULOSIC PULP FOR THE MANUFACTURE OF PAPER
US5100513A (en) * 1990-12-17 1992-03-31 Crawford Robert R Defloccing and distribution rolls for papermachine headbox
DE20011456U1 (en) * 2000-06-29 2000-09-07 Voith Sulzer Papiertech Patent Headbox for the production of a fibrous web
CN103184703A (en) * 2013-03-19 2013-07-03 陕西科技大学 Flow box

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU715684A1 (en) * 1978-01-31 1980-02-15 Центральный Научно-Исследовательский И Проектно-Конструкторский Институт По Проектированию Оборудования Для Целлюлозно-Бумажной Промышленности Head box of paper-making machine
US4285767A (en) * 1978-03-13 1981-08-25 Beloit Corporation Headbox having adjustable flow passages
JPS59157394A (en) * 1983-02-22 1984-09-06 製紙技術研究組合 Paper stock dispersing apparatus in headbox
BR8604170A (en) * 1986-09-01 1988-05-03 Gunnar Nocolai Edvard Krogh EQUIPMENT FOR THE PREPARATION OF CELLULOSIC PULP FOR THE MANUFACTURE OF PAPER
US5100513A (en) * 1990-12-17 1992-03-31 Crawford Robert R Defloccing and distribution rolls for papermachine headbox
DE20011456U1 (en) * 2000-06-29 2000-09-07 Voith Sulzer Papiertech Patent Headbox for the production of a fibrous web
CN103184703A (en) * 2013-03-19 2013-07-03 陕西科技大学 Flow box

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109629307A (en) * 2018-12-29 2019-04-16 周柏太 A kind of paper machine headbox
CN114080278A (en) * 2019-06-07 2022-02-22 Ipco德国有限责任公司 Distribution roller for a dispensing apparatus
US11911935B2 (en) 2019-06-07 2024-02-27 Ipco Germany Gmbh Spreader roll for a distributing device
CN111218837A (en) * 2020-03-09 2020-06-02 合肥宏图彩印有限公司 Multi-mode head box

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Granted publication date: 20160824