CN204059086U - Calender - Google Patents
Calender Download PDFInfo
- Publication number
- CN204059086U CN204059086U CN201420264855.0U CN201420264855U CN204059086U CN 204059086 U CN204059086 U CN 204059086U CN 201420264855 U CN201420264855 U CN 201420264855U CN 204059086 U CN204059086 U CN 204059086U
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- CN
- China
- Prior art keywords
- calender
- roller
- fiber web
- calenders
- nip
- 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.)
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Classifications
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21G—CALENDERS; ACCESSORIES FOR PAPER-MAKING MACHINES
- D21G1/00—Calenders; Smoothing apparatus
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21G—CALENDERS; ACCESSORIES FOR PAPER-MAKING MACHINES
- D21G1/00—Calenders; Smoothing apparatus
- D21G1/02—Rolls; Their bearings
- D21G1/0246—Hard rolls
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21G—CALENDERS; ACCESSORIES FOR PAPER-MAKING MACHINES
- D21G1/00—Calenders; Smoothing apparatus
- D21G1/02—Rolls; Their bearings
- D21G1/0253—Heating or cooling the rolls; Regulating the temperature
- D21G1/0266—Heating or cooling the rolls; Regulating the temperature using a heat-transfer fluid
Abstract
The utility model relates to a kind of calender for press polish fiber web (10), this calender comprises two rollers (11 of a formation calendering nip (N), 12), framework (14), roller (11,12) is mutually loaded against ground with the charger (19) providing the nip load in calendering nip (N), driver (13) and CD-ROM drive motor (15).The roller (11,12) of calender is the hard hot-rolling on the two sides of the fiber web of press polish simultaneously.
Description
Technical field
The utility model relates generally to the calender of fiber web machine.
Background technology
Perform press polish normally in order to improve attribute; The thickness of surface properties (as level and smooth and gloss) and fiber web (such as paper web or board web).According to the position of calender in fibrous-web manufacturing line and the grade of fiber web to be produced, press polish has different functions.Such as, when producing the fiber web grade through coating, use precalender before coating, and press polish fiber web in final calender after coating.
Calender can be the integral part of fibrous-web manufacturing line or coating machine, i.e. online calender.When calender forms separate unit, be then called as off-line calender.Fiber web imports online calender from the drying section of fiber web machine or coating machine.Fiber web imports off-line calender from reel machine.
In press polish, web enters nip, namely mutual against roller between the calendering nip that formed, in this nip, web starts distortion under the effect of temperature, humidity and nip pressure.
The calender of number of different types is used to the press polish of fiber web: in hard nip calender (machine calender), typically has 1-2 nip, and press polish in the nip of web between two hard rollers; In soft press-polishing machine, typically have 1-4 nip, and at least one nip roll in nip is the polymer roll of pressure release surface.In hard nip calender and soft press-polishing machine, one of nip roll is heatable hot-rolling.Glazing calender has the roller of 5-11 nip and 6-12 calender usually, wherein has the roller of 2-5 calender to be hot-rolling, and the roller of 4-7 calender is the polymer-coated roller of pressure release surface.
In the calender of hard nip, fiber web press polish between two or more hard roller.Two roller hard nips calender is mainly used in press polish does not need the web of weight light: for the pre-press polish before being coated with for the uncoated ornamenting without wood pulp paper grade.The hard nip calender of other type is multiple roll hard nip calender.The most normally, two roller hard nips calender comprises, the side at open frame and the both sides in closed frame, the cast iron roll of the heating supported by the bearing block of the roller on framework and migration roller.The roller of heating is the roller of double-walled roller or peripheral boring, and wherein hot water is recycled to make roll surface temperature be heated to 80-120 DEG C.Migration roller is dancer, CD roller, the skew roller of hydrostatic support, hydraulic pressure migration dancer or zone controlled migration roller.Nip roll by pneumatic bellows, cylinder or hydraulic cylinder, or is loaded against ground mutually by hydrostatic roller self.One or two driver is used according to the speed of calender.
Summary of the invention
An object of the present utility model is to provide a kind of novel calender.
The utility model one object special, with good conditionsi is to provide a kind of calender with the more friendly and more cheap structure of simple environment.
In order to realize above mentioning disclosed object with following, according to a kind of calender for press polish fiber web of the present utility model, described calender comprises two rollers of a formation calendering nip, framework, described roller is loaded against ground mutually with the charger providing the nip load in described calendering nip, driver and CD-ROM drive motor, and described roller is the hard hot-rolling on the two sides of the fiber web of press polish simultaneously.
Described roller is roller that is similar and that can exchange.
Described calender only comprises a spare roll.
At least one in the roller of described calender is set to crowned roll, and the hardness of described roller has drying cylinder type structure higher than 350HV10, and the diameter of the roller of described calender is 400-1100mm.
At least one in the roller of described calender is directly connected to the makers' vapour system for heating of fiber web.
Described driver is the belt drive or the direct driver that are connected to described one of them roller of roller, and described driver and described calender integrate.
Described calender is configured to a unit, and the weight of calender unit is 10-100 ton, and the height of described calender is 1-5m.
The framework of described calender is constructed by firm plate, and does not comprise case structure and also do not comprise girder structure.
Described calender comprises the lifting bracket be integrated with described framework integration.
Described roller is the roller do not heated.
Described calender comprises the scraper of the energy gravitational load for leading fiber web.
Described charger is Pneumatic loading, advantageously pneumatic bellows.
Described calender comprises the mechanical brake of one of the roller being connected to described calender.
Described calender is manually operated calender, and comprises the console of an integrated part as described calender.
Described calender is online calender or off-line calender, and described calender is the calender being applicable to all types of fiber web grade of press polish.
According to the Novel plating press of advantageous scheme of the present utility model, there is many favourable features:
According to a scheme, calender comprises two hard hot-rollings of a formation calendering nip, and the two sides of the fiber web of press polish simultaneously, therefore advantageously provide the symmetrical press polish of fiber web.Advantageously, roller is similar also therefore interchangeable, and in addition, calender just only needs a spare roll.The migration of roller is provided by least one crowned roll (crowning) in two rollers.The edge of fiber web loads advantageous by adjustment nip and distributes.
According to another program, calender comprises a hard hot-rolling and a migration roller of a formation calendering nip, and the two sides of the fiber web of press polish simultaneously.Advantageously, migration roller is dancer, i.e. the hollow roll (chamber roll) of free-runing operation.
Hard hot-rolling advantageously has and is greater than 350HV
10hardness and advantageously there is drying cylinder type structure, i.e. cover type (mantle type) structure but not peripheral hole structure.The diameter of roller is 400-1100mm.Hot-rolling is directly connected to the makers' vapour system of fiber web and heats, and the pressure of heating steam is 1-40 bar.
According to another favorable characteristics, roller does not heat.
Advantageously, calender comprises the driver being connected to one of two rollers, and this driver and calender one and between the multiple frameworks being advantageously located at calender, namely advantageously near the roller of calender, but do not extend along the longitudinal direction in the length of the roller of calender.Advantageously, this driver is belt drive or direct driver.
Advantageously, calender comprises the CD-ROM drive motor being positioned at calender, namely advantageously near the roller of calender, but does not extend along the longitudinal direction in the length of the roller of calender, and more advantageously, CD-ROM drive motor is between the bearing of roller.
Be configured to a unit according to calender of the present utility model, and the whole weight preparing the calender (comprising roller) started is 10-100 ton, can as single shipped.Advantageously, calender is connected to exterior source of energy.
Advantageously, the framework of calender is constructed by firm plate, and does not comprise case structure or girder structure, thus the raw material of 5-75% saved by the structural material realizing calender.Advantageously, lifting bracket and framework integration are integrated and integrate with a part for calender complex thus.Advantageously, the height of calender is 1-5m.
Advantageously, can the scraper of gravitational load be used for leading fiber web.Scraper can be only short-movie scraper, also can be vibrations scraper.In addition, do not use web importing or the spreader roll of deriving calender, do not need web joint unit yet.
Calender comprises Pneumatic loading, and for mutually loading felt wrapped roll against ground, and advantageously provide the nip load of 5-100kN/m, advantageously, Pneumatic loading is the pneumatic bellows adding gas carrier or air.Because do not need hydraulic power unit or hydraulic hose, so achieve this simple structure.
The structure of calender provides security for himself, and does not need independent safety means.Calender comprises the mechanical brake of one of the roller being connected to calender, and be wound around around roller if there is possible web, then calendering nip is forced to open, and mechanical brake stops calender.
Advantageously, calender is manually operated, and the controller of calender be local and with calender one.Such as console is a part integrated of calender.Make simple to operate like this, and do not need the other system that is connected in fibrous-web manufacturing line.
According in calender of the present utility model, because whole components of calender have simple structure, so the demand safeguarded is minimized.In addition, because calender is uncomplicated, so looking up the fault is simple in possible failure condition.
Online calender or the use of off-line calender is can be used as according to calender of the present utility model.In addition, calender can be replace the new calender to be installed of existing calender or calender that is modern or refitting.
The press polish of all types of fiber web grade is can be applicable to according to calender of the present utility model.
Paper and paperboard has many different types, and can be divided into two grades according to basic weight: the basic weight of individual layer is 25-300g/m
2paper and the basic weight of multilayer technique manufacture be 150-600g/m
2cardboard.It should be noted that the boundary line between paper and Board is flexible, because the cardboard of the lightest grade of basic weight is also lighter than the paper of the heaviest grade.Generally speaking, paper is used for printing, and cardboard is used for packaging.
Description is subsequently that some are applied to the example of the value of fiber web at present, may have significant change with disclosed value.These describe mainly based on source publication: the Rautiainen that paper industrial engineering (IE) association publishes, P. " Paper Science & Technology " write, Helsinki 2009,404 pages, a 3rd part papermaking section (Papermaking Science and Technology, section Papermaking Part3, edited by Rautiainen, P., published by Paper Engineers ' Association, Helsinki2009,404pages).
(namely containing wooden) printing paper based on mechanical pulp comprises newsprint, uncoated magazine paper and coated magazine paper.
The Newsprint Furnish in the present age mainly comprises the Deinking Pulp (DlP) of 80 to 100%.Remaining batching is mechanical pulp (normally TMP).But, also there is 100% mechanical fiber to prepare burden the newsprint made.Newsprint based on DlP contains the filler of nearly 20%.Approximately 8% based on the filer content in the Newsprint Furnish of protofibre.
The general value of CSWO newsprint can be thought as follows: basic weight 40-48.8g/m
2, PPS s10 roughness (SCAN-P76-95) 4.0-4.5 μm, Bendtsen roughness (SCAN-P21:67) 150ml/min, density 600-750kg/m
3, brightness (ISO2470:1999) 58-59% and opacity (ISO2470:1998) 92-95%.
Uncoated magazine paper (SC-is supercalendered) level comprises the filler of the mechanical pulp of 50%-70%, the chemical pulp of 5%-25% and 10%-30% usually.Paper also can contain DIP.The typical value of the SC paper of press polish comprises basic weight 40-60g/m at (comprising such as SC-C, SC-B and SC-A/A+)
2, content of ashes (SCAN-P5:63) 0-35%, Hunter glossiness (ISO/DIS8254/1) <20-50%, PPS s10 roughness (SCAN-P76:95) 1.0-2.5 μm, density 700-1250kg/m
3, brightness (ISO2470:1999) 62-75% and opacity (ISO2470:1998) 90-95%.
Coated mechanical paper comprises such as MFC (paper machine finished coated), LWC (light basis weight coating), MWC (in be quantitatively coated with) and HWC (height is quantitatively coated with) level.Coated mechanical paper is usually containing the machinery of 45%-75% or the chemical pulp of regenerated fiber and 25%-55%.Semi-chemical pulp is usually in the LWC paper grade of Far East manufacture.Filer content is approximately 5%-10%.The scope of grammes per square metre is usually at 40-80g/m
2.
The general value of LWC paper can be thought as follows: basic weight 40-70g/m
2, Hunter glossiness 50-65%, PPS s10 roughness 1.0-1.5 μm (hectographic printing) and 0.6-1.0 μm (notch board), density 1100-1250kg/m
3, brightness 70-75% and opacity 89-94%.
The general value of MFC paper (paper machine finished coated) can be thought as follows: basic weight 48-70g/m
2, Hunter glossiness 25-40%, PPS s10 roughness 2.2-2.8 μm, density 900-950kg/m
3, brightness 70-75% and opacity 91-95%.
The general value of MWC paper (in be quantitatively coated with) can be thought as follows: basic weight 70-90g/m
2, Hunter glossiness 65-70%, PPS s10 roughness 0.6-1.0 μm, density 1150-1250kg/m
3, brightness 70-75% and opacity 89-94%.
Two parts are divided into: uncoated with coating without wood pulp paper.Traditionally, the batching without wood pulp paper contains bleach chemical pulp and is less than the mechanical pulp of 10%.
The representative value of uncoated WFU copy paper is: grammes per square metre 70-80g/m
2, Bendtsen roughness 150-250ml/min and bulk >1.3cm
3/ g; Offset printing paper for uncoated: grammes per square metre 60-240g/m
2, Bendtsen roughness 100-200ml/min and bulk 1.2-1.3cm
3/ g; And for color photocopying paper: grammes per square metre 100g/m
2, Bendtsen roughness <50ml/min and bulk 1.1cm
3/ g.
In coating based on (WFC) in paper pulp printing paper, the amount of coating according to demand with the application of expection and changing significantly.Being below the representative value based on paper pulp printing paper of once with twice coating is: the basic weight 90g/m be once coated with
2, Hunter glossiness 65-80%, PPS s10 roughness 0.75-1.1 μm, brightness 80-88% and opacity 91-94%, and the basic weight 130g/m of twice coating
2, Hunter glossiness 70-80%, PPS s10 roughness 0.65-0.95 μm, brightness 83-90% and opacity 95-97%.
Container cardboard comprises boxboard and corrugating medium.Lining is divided into ox-hide lining, regeneration lining and fine flour lining according to its batching basis.Lining typically is 1-3 layer paperboard, its grammes per square metre 100-300g/m
2range.
Boxboard is normally uncoated, but the production of coating fine flour lining meets the requirements at the higher level to impressionability gradually.
Main carton board level is folding boxboard (FBB), bleached pulp liner board (WLC), whole sulphate bleached paperboard (SBS) and liquid packaging paperboard (LPB).Usually, these grades are typically for different types of consumer package.Container board grade changes (150-400g/m between 1 layer to 5 layer paperboards
2).End face scribbles 1 layer to 3 layers (20-40g/m usually
2), its backsize is less or be not coated with.The cardboard of same grade has large-scale different qualitative data.Owing to using mechanical pulp or chemi-mechanical pulp in the intermediate layer of base board, the bulk of FBB is the highest.The intermediate layer of WLC mainly comprises regenerated fiber, and SBS is specifically made up of chemical pulp.
The bulk of FBB is typically at 1.1-1.9cm
3between/g, and the scope of WLC is at 1.1-1.6cm
3/ g, and the scope of SBS is at 0.95-1.3cm
3/ g.The PPS-s10-smoothness of FBB is between 0.8-2.1 μm, and WLC is between 1.3-4.5 μm, and SBS is between 0.7-2.1 μm.
Separate paper is used for many terminals and uses the label backing paper in applying, such as packaging for foodstuff and office's label.The most general separate paper in Europe is the supercalendering glassine paper scribbling silicone, to provide good antistick characteristic.
The representative value of supercalendering separate paper is: basic weight 60-95g/m
2, thickness 55-79 μm, IGT12-15cm, intensive side Cobb Unger0.9-1.6g/m
2, open sides Cobb Unger1.2-2.5g/m
2.
Coated tag is used as antiseized facial tissue, is also used as coating hanging paper and flexible package.The grammes per square metre of coated tag is 60-120g/m
2, and typically single-blade coating by coating machine applying glue or pre-coating and in one side.Some the typical paper attributes being coated with the label paper of also press polish are basic weight 50-100g/m
2, Hunter glossiness 70-85%, PPS s10 roughness 0.6-1.0 μm, Bekk smoothness 1500-2000s and thickness 45-90 μm.
Accompanying drawing explanation
Hereinafter with reference to accompanying drawing, the utility model is described, wherein
Fig. 1 shows the schematic diagram of an example according to calender of the present utility model.
Detailed description of the invention
In the example of fig. 1, calender 10 comprises the hard hot-rolling 11,12 of the calendering nip N of two formation calenders 10.It is advantageous that roller is similar and interchangeable.According to another scheme, calender 10 comprises a hard hot-rolling 12 and a migration roller 11 of the calendering nip N forming calender.
Hard hot-rolling 11,12 advantageously has the hardness higher than 350HV10 and advantageously has drying cylinder type structure, i.e. cover type structure.The diameter of roller is 400-1100mm.
Hot-rolling 11,12 is directly connected to the makers' vapour system (not shown) of fiber web and heats.Calender 10 comprises the driver 13 that is connected to one of two rollers 11,12, and this driver 13 is advantageously located in the framework 14 of calender with calender one.Calender also comprises CD-ROM drive motor 15, CD-ROM drive motor 15 between the framework 14 of calender, more advantageously between the bearing 16 of roller 11,12.Calender 10 is configured to a complex.The framework 14 of calender is constructed by firm plate, and does not comprise case structure or girder structure.Lifting bracket 17 and framework 14 integrate and integrate with a part for calender unit thus.Advantageously, the height H of calender 10 is 1-5m.Can the scraper 18 of gravitational load for leading fiber web.As seen from Figure 1, do not use web importing or the spreader roll of deriving calender 10, there is not web joint unit yet.
Calender 10 comprises Pneumatic loading 19, for making the roller 11,12 of calender mutually be loaded against ground, and the load of calander nip N advantageously 5-100kN/m, and advantageously, Pneumatic loading is the pneumatic bellows adding gas carrier or air.
Calender comprises the mechanical brake (not shown) of one of the roller 11,12 being connected to calender 10, is wound around around roller if there is possible web, then calendering nip N can be forced to open and mechanical brake stopping calender 10.
Console 20 is a part integrated of calender and is fixed to framework 14.
Claims (18)
1. the calender for press polish fiber web (10), described calender comprises two rollers (11 of a formation calendering nip (N), 12), framework (14), make described roller (11,12) charger (19) of the nip load in described calendering nip (N), driver (13) and CD-ROM drive motor (15) are mutually provided against ground to provide, it is characterized in that, described roller (11,12) is the hard hot-rolling on the two sides of the fiber web of press polish simultaneously.
2. calender according to claim 1, is characterized in that, described roller (11,12) is roller that is similar and that can exchange.
3. calender according to claim 2, is characterized in that, described calender (10) only comprises a spare roll.
4. calender according to claim 1, is characterized in that, at least one in the roller (11,12) of described calender is set to crowned roll, and the hardness of described roller (11,12) is higher than 350HV
10and have drying cylinder type structure, and the diameter of the roller of described calender is 400-1100mm.
5. calender according to claim 1, is characterized in that, at least one in the roller of described calender is directly connected to the makers' vapour system for heating of fiber web.
6. calender according to claim 1, it is characterized in that, described driver (13) is the belt drive or the direct driver that are connected to one of them roller of described roller (11), and described driver and described calender integrate.
7. the calender according to any one of claim 1-6, is characterized in that, described calender is configured to a unit, and the weight of calender unit is 10-100 ton, and the height of described calender (10) is 1-5m.
8. the calender according to any one of claim 1-6, is characterized in that, the framework (14) of described calender (10) is constructed by firm plate, and does not comprise case structure and also do not comprise girder structure.
9. calender according to claim 1, is characterized in that, described calender (10) comprises the lifting bracket (17) integrated with described framework (14).
10. the calender according to any one of claim 1-4,6 or 9, is characterized in that, described roller (11,12) is the roller do not heated.
11. calenders according to claim 7, is characterized in that, described roller (11,12) is the roller do not heated.
12. calenders according to claim 8, is characterized in that, described roller (11,12) is the roller do not heated.
13. calenders according to claim 1, is characterized in that, described calender (10) comprises the scraper (18) of the energy gravitational load for leading fiber web.
14. calenders according to claim 1, is characterized in that, described charger is Pneumatic loading (19).
15. calenders according to claim 14, is characterized in that, described charger is pneumatic bellows.
16. calenders according to claim 1, is characterized in that, described calender (10) comprises the mechanical brake of one of the roller (11,12) being connected to described calender.
17. calenders according to claim 1, is characterized in that, described calender (10) is manually operated calender, and comprise the console (20) as an integrated part of described calender (10).
18. calenders according to any one of claim 1-6, it is characterized in that, described calender (10) is online calender or off-line calender, and described calender (10) is the calender being applicable to all types of fiber web grade of press polish.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP13170039.5A EP2808444B1 (en) | 2013-05-31 | 2013-05-31 | Calender arrangement |
| EP13170039 | 2013-05-31 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204059086U true CN204059086U (en) | 2014-12-31 |
Family
ID=48534272
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420264855.0U Active CN204059086U (en) | 2013-05-31 | 2014-05-22 | Calender |
Country Status (2)
| Country | Link |
|---|---|
| EP (1) | EP2808444B1 (en) |
| CN (1) | CN204059086U (en) |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FI20030377A0 (en) * | 2003-03-13 | 2003-03-13 | Metso Paper Inc | Method of calendering and calender |
| FI117869B (en) * | 2006-01-02 | 2007-03-30 | Metso Paper Inc | Calendering method for low-gloss fibrous web such as paper, board or a corresponding web, involves calendering low-gloss fibrous web in hard nip zone which has hard-matte-surface rough surfaces manufactured with predetermined roughness |
| FI8227U1 (en) * | 2008-10-28 | 2009-03-23 | Metso Paper Inc | Fiber machine roller |
-
2013
- 2013-05-31 EP EP13170039.5A patent/EP2808444B1/en active Active
-
2014
- 2014-05-22 CN CN201420264855.0U patent/CN204059086U/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| EP2808444B1 (en) | 2016-01-06 |
| EP2808444A1 (en) | 2014-12-03 |
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| GR01 | Patent grant |