CN104727177A - Control method of forming part device - Google Patents
Control method of forming part device Download PDFInfo
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- CN104727177A CN104727177A CN201510148396.9A CN201510148396A CN104727177A CN 104727177 A CN104727177 A CN 104727177A CN 201510148396 A CN201510148396 A CN 201510148396A CN 104727177 A CN104727177 A CN 104727177A
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- Prior art keywords
- paper
- shake
- control method
- forming section
- section device
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- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
- D21F1/00—Wet end of machines for making continuous webs of paper
- D21F1/18—Shaking apparatus for wire-cloths and associated parts
- D21F1/20—Shaking apparatus for wire-cloths and associated parts in Fourdrinier machines
Abstract
The invention belongs to the technical field of papermaking of household paper, and particularly relates to a control method of a forming part device. The control method of the forming part device assists in improving the interweaving effect of pulp fibers. Shaking parameters are adjusted and optimized, pulp on a net is shaken on points where the pulp makes contact with the net, the fibers can be evenly distributed, orientation of transverse fibers is enhanced, and the control method has a remarkable optimization effect on the evenness, the longitudinal and transverse strength ratio, the surface quality and the like of finished paper.
Description
Technical field
The invention belongs to the technical field of paper for daily use papermaking, be specially a kind of control method of forming section device.
Background technology
Paper for daily use is quantitatively lower, generally at 10-30g/m
2, Substance is lower, requires higher to the evenness of paper.In paper for daily use field of papermaking, Fourdrinier yankee machine is most widely used type, is manufacturing paper with pulp in paper for daily use process, the evenness generally by regulating the jet nit point of slurry to improve paper.Pulp suspension to be injected into certain spray angle and effluxvelocity through head box be coated on breast roll bag net and forming web on.The position that pulp suspension sprays is called jet nit point, jet nit point is for long mesh paper making machine, it is an extremely important parameter, it determines original shaping, thus affects paper formation and retention, and the various physical property of paper has much relations with evenness, evenness is bad, not only affect the physical property of paper, also affect the outward appearance of paper, finally affect into the using character of paper.Application number is: the Chinese invention patent of 201310080979.3 " improving the method for pulp fiber intertexture effect " provides a kind of method improving pulp fiber intertexture effect, the method uses fourdrinier machine, this fourdrinier machine comprises the head case of accommodating slurry, the breast roll that proximity heads case is arranged and for no reason net, this for no reason net comprise forming web and be coated on bag net on breast roll, this case is provided with a mouth spray with to bag net and forming web jetting slurry pulp suspension, this mouth spray is made up of top lip of slice setting up and down and aulaeum, this breast roll is positioned at below aulaeum, the position that pulp suspension sprays is called jet nit point, on this breast roll, the centreline definition of vertical forming net initiating terminal is vertical center line, the method is that the bag of 8-12mm is online by the vertical center line that the starting point that adjust site is positioned at horizontal range breast roll, between aulaeum and breast roll, vertical interval is 3.7-3.8mm, reach the object of the intertexture effect improving pulp fiber.The present invention, by reducing page in the online original shaping of the bag of breast roll, effectively improves the slurry intertexture effect of pulp suspension at jet nit point, promotes paper product quality.But this regulative mode is very single, sometimes only by the evenness that adjust site and can not well improve paper.
Shake machine is important equipment in the paper machine, by the shake to online slurry, fiber is uniformly distributed and strengthens the orientation of transverse fiber, thus for becoming the evenness, aspect intensity ratio, one-tenth paper surface quality etc. of paper to have significant optimization function.Traditional shake machine is when application, and the highest operating speed of paper machine is at 300m/min, and along with the raising of the paper machine operation speed of a motor vehicle, traditional shake machine does not all more and more meet instructions for use on amplitude, shake frequency.Because paper for daily use is quantitatively lower, the speed of a motor vehicle is higher, requires very high, generally believe shake DeGrain in current industry to formation of sheet, and at present, shake machine is not still applied to paper for daily use and manufactures paper with pulp field by papermaking producer.
Summary of the invention
The object of the invention is to the control method that a kind of forming section device is provided for current Problems existing, be specially and a kind of auxiliary control method improving pulp fiber intertexture effect forming section device is provided.Adjustment is carried out with preferred to shake parameter, at slurry jet nit point by the shake to online slurry, fiber is uniformly distributed and strengthens the orientation of transverse fiber, thus for becoming the evenness, aspect intensity ratio, one-tenth paper surface quality etc. of paper to have significant optimization function.
Technical scheme of the present invention is:
A kind of control method of forming section device, this forming section device comprise be equipped with slurry head case, proximity heads case arrange breast roll, be positioned at breast roll downstream multiple function rollers, be coated on the forming net on breast roll and function roller and be connected to the low-disturbance power shaker of breast roll one end with connecting rod, it is characterized in that, the following formulae discovery of oscillation intensity of described low-disturbance power shaker:
X＝K*A*f
2/V，
In formula: X-shake intensity,
A-shake amplitude, mm,
F-frequency, secondary/min,
The V-speed of a motor vehicle, m/m in,
K-conversion constant, K=0.012,
Wherein, each shake parameter is arranged as follows:
Shake amplitude-A is in 5 to 20mm scope;
Frequency-f is in 300 to 600 times/min scope;
The speed of a motor vehicle-V is in 300 to 1200m/min scope;
Shake intensity-X is in 30 to 60 scopes.
When shake intensity-X is in 30 to 60 scopes, can reaches and improve paper-forming evenness effect.
In order to reach best shake effect, parameters is preferably as follows:
Feature of the present invention also has:
Further, preferred shake amplitude-A is in 8 to 16mm scope.
Further, optimized frequency-f is in 350 to 600 times/min scope.
Further, the preferred speed of a motor vehicle-V is in 500 to 1000m/min scope.
Further, preferred shake intensity-X is in 35 to 48 scopes.
Again further preferably, described parameters is preferably as follows:
Further, preferred shake amplitude-A is in 10 to 12mm scope.
Further, optimized frequency-f is in 400 to 600 times/min scope.
Further, the preferred speed of a motor vehicle-V is in 700 to 900m/min scope.
Beneficial effect of the present invention is:
Shake machine is applied to paper for daily use and manufactures paper with pulp aspect by the present invention, adjustment is carried out with preferred to shake parameter, the setting of shake parameter plays conclusive effect to shake effect, at slurry jet nit point by the shake to online slurry, fiber is uniformly distributed and strengthens the orientation of transverse fiber, thus for becoming the evenness, aspect intensity ratio, one-tenth paper surface quality etc. of paper to have significant optimization function.
In a word, the present invention can reach beyond thought effect by the setting of shake parameter, overcomes industry prejudice.
Accompanying drawing explanation
Fig. 1 is forming section device front view schematic diagram;
Fig. 2 is the left view schematic diagram of breast roll and low-disturbance power shaker linking relationship;
Wherein, 1-head case, 2-breast roll, 3-forming net, 4-low-disturbance power shaker, 5-connecting rod, 6-function roller.
Detailed description of the invention
Below by specific embodiment, technical scheme of the present invention is described in detail.
Embodiment 1
A kind of control method of forming section device, this forming section device comprise be equipped with slurry head case, proximity heads case arrange breast roll, be positioned at breast roll downstream multiple function rollers, be coated on the forming net on breast roll and function roller and be connected to the low-disturbance power shaker of breast roll one end with connecting rod
The following formulae discovery of oscillation intensity of described low-disturbance power shaker:
X＝K*A*f
2/V，
In formula: X-shake intensity,
A-shake amplitude, mm,
F-frequency, secondary/min,
The V-speed of a motor vehicle, m/m in,
K-conversion constant, K=0.012,
Wherein, each shake parameter is arranged as follows:
When shake intensity-X is in 30 to 60 scopes, can reaches and improve paper-forming evenness effect.
Long mesh paper making machine, manufacturing paper with pulp is quantitatively 16.5g/m
2paper for daily use, physical property requires: vertical lateral pull ratio is 1.7.
Do not having under shake action condition, the evenness of paper is 105, and vertical lateral pull ratio is 1.4.
Low-disturbance power shaker shake setting parameter is: amplitude A 5mm, frequency f 300 times/min, result is: when paper motor speed is 300m/min, try to achieve oscillation intensity and be only 18, now the evenness index of paper is 108, vertical lateral pull ratio is 1.45, and this shaping on paper improves almost without any impact.
When shake setting parameter is: frequency f 450 times/min, other parameters remain unchanged, and trying to achieve vibration characteristic value is 40.5, and now the evenness index of paper is 160, and vertical lateral pull ratio is 1.68, and this is shaped to paper and has greatly improved.
Embodiment 2
Long mesh paper making machine, manufacturing paper with pulp is quantitatively 16.5g/m
2paper for daily use.Low-disturbance power shaker shake setting parameter is: amplitude A 20mm, frequency f 450 times/min, result is: when paper motor speed is 800m/min, try to achieve oscillation intensity and be only 60.8, now the evenness index of paper is 118, vertical lateral pull ratio is 1.83, and this is shaped to improve on paper and does not almost affect.
When shake setting parameter is: amplitude A 12mm, other parameters remain unchanged, and trying to achieve vibration characteristic value is 36.5, and now the evenness index of paper is 148, and vertical lateral pull ratio is 1.65, and this has greatly improved to paper is shaping.
Embodiment 3
Long mesh paper making machine, manufacturing paper with pulp is quantitatively the paper for daily use of 16.5g/ ㎡.Low-disturbance power shaker shake setting parameter is: amplitude A 20mm, frequency f 600 times/min, result is: when paper motor speed is 1200m/min, trying to achieve oscillation intensity is 72, now the evenness index of paper is 110, vertical lateral pull ratio is 1.92, and this shaping on paper improves almost not to be affected.
When shake setting parameter is: amplitude A 13mm, other parameters remain unchanged, and trying to achieve vibration characteristic value is 46.8, and now the evenness index of paper is 166, and vertical lateral pull ratio is 1.71, and this has greatly improved to paper is shaping.
Embodiment 4
Long mesh paper making machine, manufacturing paper with pulp is quantitatively 16.5g/m
2paper for daily use.Low-disturbance power shaker shake setting parameter is: amplitude A 12mm, frequency f 450 times/min, and result is: when paper motor speed is 300m/min, trying to achieve oscillation intensity is 97.2, now the evenness index of paper is 105, and vertical lateral pull ratio is 2.0, and this does not have improvement result to the shaping of paper.
When paper machine setting parameter is: the speed of a motor vehicle is 800m/min, and other parameters remain unchanged, trying to achieve vibration characteristic value is 36.5, and now the evenness index of paper is 150, and vertical lateral pull ratio is 1.65, and this has greatly improved to paper is shaping.
Embodiment 5
Long mesh paper making machine, manufacturing paper with pulp is quantitatively 16.5g/m
2paper for daily use.Low-disturbance power shaker shake setting parameter is: amplitude A 11mm, frequency f 450 times/min, result is: when paper motor speed is 850m/min, try to achieve oscillation intensity and be only 31.4, now the evenness index of paper is 122, vertical lateral pull ratio is 1.58, and this has some improvement to the shaping of paper.
When shake setting parameter is: frequency f 550 times/min, other parameters remain unchanged, and trying to achieve vibration characteristic value is 47, and now the evenness index of paper is 168, and vertical lateral pull ratio is 1.70, and this has greatly improved to paper is shaping.
Embodiment 6
Long mesh paper making machine, manufacturing paper with pulp is quantitatively 16.5g/m
2paper for daily use.Low-disturbance power shaker shake setting parameter is: amplitude A 13mm, frequency f 500 times/min, and result is: when paper motor speed is 1200m/min, trying to achieve oscillation intensity is 32.5, now the evenness index of paper is 130, and vertical lateral pull ratio is 1.60, and this is formed with certain improvement to paper.
When shake setting parameter is: frequency f 600 times/min, other parameters remain unchanged, and trying to achieve vibration characteristic value is 46.8, and now the evenness index of paper is 166, and vertical lateral pull ratio is 1.71, and this has greatly improved to paper is shaping.
Repeatedly test run shows, owing to adopting the shaker of low-disturbance power, can reach high vibration frequency; And under very high paper machine speed, when low-disturbance power shaker runs, paper machine is not almost injured.
The present invention carries out adjustment with preferred to shake parameter and paper machine parameter, at slurry jet nit point by the shake to online slurry, fiber is uniformly distributed and strengthens the orientation of transverse fiber, thus for becoming the evenness, aspect intensity ratio, one-tenth paper surface quality etc. of paper to have significant optimization function.
Claims (8)
1. the control method of a forming section device, this forming section device comprise be equipped with slurry head case, proximity heads case arrange breast roll, be positioned at breast roll downstream multiple function rollers, be coated on the forming net on breast roll and function roller and be connected to the low-disturbance power shaker of breast roll one end with connecting rod, it is characterized in that, the following formulae discovery of oscillation intensity of described low-disturbance power shaker:
X＝K*A*f
2/V，
In formula: X-shake intensity,
A-shake amplitude, mm,
F-frequency, secondary/min,
The V-speed of a motor vehicle, m/min,
K-conversion constant, K=0.012,
Wherein, each shake parameter is arranged as follows:
Shake amplitude-A is in 5 to 20mm scope;
Frequency-f is in 300 to 600 times/min scope;
The speed of a motor vehicle-V is in 300 to 1200m/min scope;
Shake intensity-X is in 30 to 60 scopes.
2. the control method of forming section device according to claim 1, is characterized in that, described shake amplitude-A is in 8 to 16mm scope.
3. the control method of forming section device according to claim 1, is characterized in that, described frequency-f is in 350 to 600 times/min scope.
4. the control method of forming section device according to claim 1, is characterized in that, the described speed of a motor vehicle-V is in 500 to 1000m/min scope.
5. the control method of forming section device according to claim 1, is characterized in that, described shake intensity-X is in 35 to 48 scopes.
6. the control method of forming section device according to claim 2, is characterized in that, described shake amplitude-A is in 10 to 12mm scope.
7. the control method of forming section device according to claim 3, is characterized in that, described frequency-f is in 400 to 600 times/min scope.
8. the control method of forming section device according to claim 4, is characterized in that, the described speed of a motor vehicle-V is in 700 to 900m/min scope.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510148396.9A CN104727177B (en) | 2015-03-31 | 2015-03-31 | A kind of control method of shaping part device |
Applications Claiming Priority (1)
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|---|---|---|---|
| CN201510148396.9A CN104727177B (en) | 2015-03-31 | 2015-03-31 | A kind of control method of shaping part device |
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| CN104727177A true CN104727177A (en) | 2015-06-24 |
| CN104727177B CN104727177B (en) | 2017-03-08 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112585317A (en) * | 2018-08-30 | 2021-03-30 | 福伊特专利有限公司 | Method and machine for producing a multi-layer fibrous web |
| CN114280921A (en) * | 2021-12-15 | 2022-04-05 | 浙江华章科技有限公司 | Parameter optimization method and device for shaking device and storage medium |
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| CN2498198Y (en) * | 2001-07-12 | 2002-07-03 | 高建国 | Filtering paper fabricating apparatus |
| CN202466292U (en) * | 2010-08-11 | 2012-10-03 | 沃依特专利有限责任公司 | Shaking device and machine for manufacturing fiber web |
| CN202688762U (en) * | 2010-08-11 | 2013-01-23 | 沃依特专利有限责任公司 | Vibratory equipment and machine for manufacturing web of fibers |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2498198Y (en) * | 2001-07-12 | 2002-07-03 | 高建国 | Filtering paper fabricating apparatus |
| CN202466292U (en) * | 2010-08-11 | 2012-10-03 | 沃依特专利有限责任公司 | Shaking device and machine for manufacturing fiber web |
| CN202688762U (en) * | 2010-08-11 | 2013-01-23 | 沃依特专利有限责任公司 | Vibratory equipment and machine for manufacturing web of fibers |
| CN202688763U (en) * | 2010-08-11 | 2013-01-23 | 沃依特专利有限责任公司 | Vibratory equipment and machine for manufacturing web of fibers |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112585317A (en) * | 2018-08-30 | 2021-03-30 | 福伊特专利有限公司 | Method and machine for producing a multi-layer fibrous web |
| CN114280921A (en) * | 2021-12-15 | 2022-04-05 | 浙江华章科技有限公司 | Parameter optimization method and device for shaking device and storage medium |
| CN114280921B (en) * | 2021-12-15 | 2023-11-14 | 浙江华章科技有限公司 | Method and device for optimizing parameters of shaking device and storage medium |
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| CN104727177B (en) | 2017-03-08 |
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