CN105401477B - It is a kind of that the method for improving straw pulp beating degree and intensity is discongested by reinforcing - Google Patents
It is a kind of that the method for improving straw pulp beating degree and intensity is discongested by reinforcing Download PDFInfo
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- CN105401477B CN105401477B CN201510709429.2A CN201510709429A CN105401477B CN 105401477 B CN105401477 B CN 105401477B CN 201510709429 A CN201510709429 A CN 201510709429A CN 105401477 B CN105401477 B CN 105401477B
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- 239000010902 straw Substances 0.000 title claims abstract description 71
- 238000010009 beating Methods 0.000 title claims abstract description 70
- 230000003014 reinforcing effect Effects 0.000 title claims abstract description 34
- 238000000034 method Methods 0.000 title claims abstract description 27
- 238000005516 engineering process Methods 0.000 claims abstract description 5
- 239000000725 suspension Substances 0.000 claims description 42
- 229920001131 Pulp (paper) Polymers 0.000 claims description 36
- 239000002002 slurry Substances 0.000 claims description 25
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 15
- 241000209140 Triticum Species 0.000 claims description 14
- 235000021307 Triticum Nutrition 0.000 claims description 14
- 239000000203 mixture Substances 0.000 claims description 8
- 244000025254 Cannabis sativa Species 0.000 claims description 4
- 229920002472 Starch Polymers 0.000 claims description 3
- 235000019698 starch Nutrition 0.000 claims description 3
- 239000008107 starch Substances 0.000 claims description 3
- 230000033228 biological regulation Effects 0.000 claims description 2
- 239000007788 liquid Substances 0.000 claims 1
- 238000005728 strengthening Methods 0.000 claims 1
- 239000000835 fiber Substances 0.000 abstract description 52
- 238000005360 mashing Methods 0.000 abstract description 8
- 230000000694 effects Effects 0.000 abstract description 5
- 238000005520 cutting process Methods 0.000 abstract description 3
- 238000004134 energy conservation Methods 0.000 abstract description 2
- 241000209094 Oryza Species 0.000 description 10
- 235000007164 Oryza sativa Nutrition 0.000 description 10
- 235000009566 rice Nutrition 0.000 description 10
- 238000004519 manufacturing process Methods 0.000 description 8
- 238000002360 preparation method Methods 0.000 description 8
- 238000004458 analytical method Methods 0.000 description 6
- 230000000877 morphologic effect Effects 0.000 description 6
- 230000000704 physical effect Effects 0.000 description 6
- 238000005070 sampling Methods 0.000 description 6
- 238000010561 standard procedure Methods 0.000 description 6
- 238000004537 pulping Methods 0.000 description 3
- 239000002994 raw material Substances 0.000 description 3
- 230000000630 rising effect Effects 0.000 description 3
- 244000007853 Sarothamnus scoparius Species 0.000 description 2
- 210000004027 cell Anatomy 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 238000000746 purification Methods 0.000 description 2
- 201000004384 Alopecia Diseases 0.000 description 1
- 241001668545 Pascopyrum Species 0.000 description 1
- 239000002154 agricultural waste Substances 0.000 description 1
- 210000002421 cell wall Anatomy 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 208000024963 hair loss Diseases 0.000 description 1
- 230000003676 hair loss Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 239000012925 reference material Substances 0.000 description 1
- 238000010025 steaming Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21D—TREATMENT OF THE MATERIALS BEFORE PASSING TO THE PAPER-MAKING MACHINE
- D21D1/00—Methods of beating or refining; Beaters of the Hollander type
- D21D1/02—Methods of beating; Beaters of the Hollander type
- D21D1/08—Beaters with means for driving the pulp quickly
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Abstract
The method for improving straw pulp beating degree and intensity is discongested by reinforcing the invention discloses a kind of, the inventive method discongests technology and straw pulp is discongested using reinforcing, straw pulp can not make its beating degree up to 70oSR by mashing effect；There is the inventive method, beating degree few to fibre cutting to rise fast, pulp strength high, obvious upgrading effect, energy-conservation and efficient advantage.
Description
Technical field
It is more particularly to a kind of that raising straw pulp beating degree is discongested by reinforcing the invention belongs to straw pulp machinery processing technology field
With the field of intensity.
Background technology
Paddy and wheat grass as the huge agricultural crop straw of the class resource of China one, its be used as paper making raw material have it is considerable
Prospect.Continuously improve as pulping technique is constantly progressive and there is problem to careless class pulping system, careless class cleans system
Pulp-water puts down the raising that there has also been by a relatively large margin.It is serious in short supply in China's timber resources and govern pulp and paper industry hair for a long time
Under the overall background of exhibition, as long as the work that paddy and wheat straw pulp cleans preparation is carried out, while the guarantor of paddy and wheat straw pulp quality
The field of card and application is expanded work and is carried out, then can significantly alleviate the pressure that China's Papermaking Resource supplies wretched insufficiency, accelerates grass
The developing steps of class pulp and paper industry, the level of overall lifting China paper industry.
The preparation of careless class paper pulp, even fully achieves cleanly production, can only also say be complete from grass as raw material to
The process of paper pulp fiber conversion.As for the application from careless class paper pulp to paper product, then because its fiber is relatively short, it is not easy to point
Silk brooming, and containing more non-fiber cell, to come into paper tape dry linting, hair loss, relatively low physical strength the problems such as, make its base
Originally it is confined to that the minimum class paper pulp of added value can only be acknowledged as in the application in low and middle-end paper product.
Generally, the initial beating degree of careless class paper pulp is more in more than 30oSR.When papermaking is used it for, discongested using conventional
And the mode of slight mashing is processed and is entered paper manufacturing systems.This mashing processing mode is not also for making straw pulp beating degree
Rise too fast, obvious cut-out is produced to fiber, because the beating degree of paddy and wheat straw pulp is generally to after 45oSR, its thing into slurry
Reason intensity, particularly tearing strength just occur decline, and there is fatefulue destruction to make to paddy and wheat straw pulp fiber for mashing hereafter
With.Therefore, the substantially all non-wire-dividing broom purification of paddy and wheat straw pulp is just used for papermaking, expects that it has positive tribute to paper physical intensity
Offer and also just do not know where to begin.If straw pulp has certain wire-dividing broom purification degree, it can not be reduced again into the physical strength of paper, or even
Also to obtain stronger paper strength is exactly a bottleneck problem for urgently cracking.
The content of the invention
The side that straw pulp beating degree improves pulp strength simultaneously is improved present invention aim at a kind of being discongested by reinforcing is provided
Method, fiber after being processed using the method outside fibrillating is good, rare cut-out, the characteristics of paper strength is preferable, and process
Process energy conservation, efficiently.
The present invention is discongested in the method for improving straw pulp beating degree and intensity by reinforcing, and straw pulp is with agricultural waste material rice
The paper pulp that grass, wheat straw obtain as raw material through conventional chemical steaming.
The present invention is carried out by the method that raising straw pulp beating degree and intensity are discongested in reinforcing according to step in detail below, Wen Zhong
Percentage is mass percent unless otherwise indicated：
（1）Weigh a certain amount of straw pulp to be placed in beaker, add water and be adjusted to the fibre of mass percent concentration 3%~10%
Dimension suspension；
（2）By step（1）In mix up the dense pulp suspension of slurry and be transferred in Pulp dredger, set wherein in fluffer
There is the agitating shaft with helical blade, helical blade thickness is 10~15mm, and pitch is 40~60mm；It is closed right at 20~30 DEG C
Pulp suspension carries out reinforcing and discongests, and regulation discongests speed and time to reach 38 ° of SR~70 ° SR of predetermined beating degree；
Wherein straw pulp is rice straw pulp, then beating degree is 40 ° of SR~70 ° SR, if Straw Pulp then beating degree be 38 ° of SR~
60°SR。
（3）Reinforcing discongest after the completion of, turn down and discongest speed to 60~150 r/min, with keep the slurry in fluffer with
Paddle motion is entwined without there is fiber collision, reduces the chance for producing wadding agglomerate or dough, and now fluffer is stirred
Mixing the rotation of blade does not influence the beating degree of slurry；
（4）The beating degree that slurry is determined slurry by national standard is taken, when freeness value fails to reach set goals, is repeated
Step（2）、（3）Continue to discongest slurry, untill predetermined freeness value is met；
（5）The straw pulp of predetermined beating degree is discongested, handsheet, the constant temperature and humidity page reference material of page are carried out by national standard
Manage the measure of intensity.
The step（2）What reinforcing was discongested discongests speed for 1500~5000r/min, 5~40min of process time.
Advantage of the present invention relative to prior art：
（1）For straw chemical pulp, Wheat Straw Pulp, discongest mode with reinforcing and discongested, the beating degree of rice straw pulp is most
Height can rise to 70 ° of SR or so, and the beating degree highest of Straw Pulp can rise to 60 ° of SR or so；
（2）Paddy and wheat straw pulp discongests the rising that its beating degree is realized mainly by the fibrillating to paper pulp fiber through reinforcing, i.e.,
When being to beating degree high, the cutting action to fiber can ignore；
（3）The physical strength of paper pulp is discongested always in increased trend, is passed to comprehensive physical strength ratio during beating degree high
30% or so is higher by during system mashing.
Traditional defibering method is played a part of to be mainly dispersed paper pulp fiber to paper pulp.It is to wood pulp
Even if discongesting fully, 1 to 2 ° of beating degree of SR can only be also increased at most.Comparatively speaking, straw pulp is discongested equipment and is dredged through tradition
Xie Hou, the beating degree maximum of straw can rise 55 ° of SR or so, wheat straw can be close to 50 ° of SR, and the required time of discongesting can be very
It is long.Therefore, when needing for the beating degree of paddy and wheat straw pulp to bring up to 45 ° of more than SR, using the beater or defibrination in laboratory
Machine reinforcing mashing effect, fiber fibrillating is accelerated by increasing the cut-out of fiber with brooming to reach raising pulp freeness
Purpose.However, the reason for paddy and wheat straw pulp is because of mashing cut staple, under its pulp strength is often occurred as soon as before and after 45 ° of SR
Drop, the particularly decline with the tearing strength of the proportional relation of fibre length is obvious.This causes that intensity itself is just relatively low
Paddy and wheat straw pulp application added value is greatly limited.
Using the fluffer of discongesting with reinforcing effect be then acted on by the hydraulic shear that enhances and blade with starch
The obtuse angle touching effect of fiber and discongest blade rotational speed with the frequency that increases hydraulic shear and collide with fiber by improving and
Intensity, entirely discongests process and avoids the shear action of as pulping process sharp knife blade to fibre cutting, so as to protect always
Hold paper pulp fiber length to be basically unchanged, the raising to the intensity of paper pulp fiber plays an important role；Discongesting lifting beating degree
During, the rising of beating degree mainly by heteroproteose cell crack and the softening of fiber finer cell wall, outside fine fibre are turned into
Increased trend is all also presented always for realizing, therefore before tear, anti-tensile, the pop strength to 55 ° of SR of paper pulp, beats afterwards
The rising of the degree of beating just becomes small to this several influences of index, and even rice straw pulp has arrived the beating degree high of nearly 70 ° of SR, also substantially not
See that pulp strength declines, and Straw Pulp is when discongesting the beating degree high of nearly 60 ° of SR, its pulp strength has also risen.Based on this
A little effects, the application of technology is discongested by this reinforcing, and straw pulp can not only exempt the process of mashing, the beating degree of paper pulp is increased
To the scope of beating degree high, while the physical strength of paper pulp can also be lifted, its application in the middle of medium-to-high grade paper product can be expanded.
Specific embodiment
Below by embodiment the invention will be further described explanation, but the scope of the present invention be not limited to it is described in
Hold, all percentages are mass percent unless otherwise indicated in embodiment.
Embodiment 1：This discongests the method for improving straw pulp beating degree and intensity by reinforcing, and particular content is as follows：
The present embodiment determines its beating degree, pulp strength index, specifically with rice straw pulp as object is discongested after being discongested through reinforcing
Step is as follows：
（1）Weigh straw pulp and add water and be adjusted to the fibrous suspension of mass percent concentration 10%, rubbed in preparation point
Dissipate uniform；
（2）By step（1）In mix up that the dense pulp suspension of slurry is transferred to Pulp dredger discongest groove, it is closed good to dredge
The agitating shaft with helical blade is provided with solution machine, wherein fluffer, vane thickness is 10mm, and pitch is 40mm, then 25
DEG C, reinforcing carried out to pulp suspension under 2000 r/min discongest 5min, to reach 40 ° of SR of predetermined beating degree；
（3）Turn down step（2）To 60 r/min, opening discongests groove lid to the revolution of middle fluffer, with special sampling cup from groove
20mL pulp suspensions are taken in the slurry of interior Uniform Flow, i.e., equivalent to the paper pulp fiber that oven-dry weight is 2 g, two parts of confessions is taken altogether and is beaten
Degree of beating parallel determination, while taking a small amount of for fibre morphology sign, then stopping fluffer rotation；
（4）By step（3）Middle taken pulp suspension is transferred to beating degree and determines in special 1000 mL graduated cylinders, adds water
To 1000mL, the freeness value for discongesting rear fibrous suspension is determined by standard method, reach predetermined freeness value；
（5）The morphological parameters for discongesting rear paper pulp fiber are determined using fiber quality analyzer；
（6）Take out step（4）In the paper pulp discongested, a portion be used to being measured physical property of pulp and point
Analysis, manufacturing paper with pulp for page is carried out with the measure of physical index by standard.
Discongest the result of rice straw pulp：Beating degree：40 ° of SR, average fiber length：0.398mm, tear index：4.68mN·
m2/ g, tensile index：54.9Nm/g, burst index：2.54kPa·m2/g。
Embodiment 2：This discongests the method for improving straw pulp beating degree and intensity by reinforcing, comprises the following steps that：
（1）Weigh straw pulp and add water and be adjusted to the fibrous suspension of mass percent concentration 6%, rubbed in preparation point
Dissipate uniform；
（2）By step（1）In mix up that the dense pulp suspension of slurry is transferred to Pulp dredger discongest groove, it is closed good to dredge
The agitating shaft with helical blade is provided with solution machine, wherein fluffer, vane thickness is 15mm, and pitch is 50mm, then 20
DEG C, reinforcing carried out to pulp suspension under 3500 r/min discongest 25min, to reach 50 ° of SR of predetermined beating degree；
（3）Turn down step（2）To 100 r/min, opening discongests groove lid to the revolution of middle fluffer, with special sampling cup from groove
33.3mL pulp suspensions are taken in the slurry of interior Uniform Flow, i.e., equivalent to the paper pulp fiber that oven-dry weight is 2 g, two parts of confessions is taken altogether
Beating degree parallel determination, while taking a small amount of for fibre morphology sign, then stopping fluffer rotation；
（4）By step（3）Middle taken pulp suspension is transferred to beating degree and determines in special 1000 mL graduated cylinders, adds water
To 1000mL, the freeness value for discongesting rear fibrous suspension is determined by standard method, reach predetermined freeness value；
（5）The morphological parameters for discongesting rear paper pulp fiber are determined using fiber quality analyzer；
（6）Take out step（4）In the paper pulp discongested, a portion be used to being measured physical property of pulp and point
Analysis, manufacturing paper with pulp for page is carried out with the measure of physical index by standard.
Discongest the result of rice straw pulp：Beating degree：55 ° of SR, average fiber length：0.398mm, tear index：4.84mN·
m2/ g, tensile index：55.7Nm/g, burst index：3.07kPa·m2/g。
Embodiment 3：The method for improving straw pulp beating degree and intensity is discongested in this laboratory by reinforcing, and particular content is as follows：
The straw pulp that the present embodiment is discongested is rice straw pulp, is comprised the following steps that：
（1）Weigh straw pulp and add water and be adjusted to the fibrous suspension of mass percent concentration 3%, rubbed in preparation point
Dissipate uniform；
（2）By step（1）In mix up that the dense pulp suspension of slurry is transferred to Pulp dredger discongest groove, it is closed good to dredge
The agitating shaft with helical blade is provided with solution machine, wherein fluffer, vane thickness is 12mm, and pitch is 60mm, then 30
DEG C, reinforcing carried out to pulp suspension under 4500 r/min discongest 35min, to reach 70 ° of SR of predetermined beating degree；
（3）Turn down step（2）To 150 r/min, opening discongests groove lid to the revolution of middle fluffer, with special sampling cup from groove
66.7mL pulp suspensions are taken in the slurry of interior Uniform Flow, i.e., equivalent to the paper pulp fiber that oven-dry weight is 2 g, two parts of confessions is taken altogether
Beating degree parallel determination, while taking a small amount of for fibre morphology sign, then stopping fluffer rotation；
（4）By step（3）Middle taken pulp suspension is transferred to beating degree and determines in special 1000 mL graduated cylinders, adds water
To 1000mL, the freeness value for discongesting rear fibrous suspension is determined by standard method；
（5）65 ° of SR of freeness value of measure fail to reach set goals, then need to cover notch, by step（2）、（3）Continue
The slurry 5min in groove is discongested, its freeness value is determined, predetermined freeness value is met；
（6）The morphological parameters for discongesting rear paper pulp fiber are determined using fiber quality analyzer；
（7）Take out step（5）In the paper pulp discongested, a portion be used to being measured physical property of pulp and point
Analysis, manufacturing paper with pulp for page is carried out with the measure of physical index by standard.
Discongest the result of rice straw pulp：Beating degree：70 ° of SR, average fiber length：0.397mm, tear index：4.93mN·
m2/ g, tensile index：58.5Nm/g, burst index：3.14kPa·m2/g。
Embodiment 4：The method for improving straw pulp beating degree and intensity is discongested in this laboratory by reinforcing, and the present embodiment is with wheat straw
Starch to discongest object, its beating degree, pulp strength index are determined after being discongested through reinforcing, comprise the following steps that：
（1）Weigh Straw Pulp and add water and be adjusted to the fibrous suspension of mass percent concentration 10%, rubbed in preparation
It is uniformly dispersed；
（2）By step（1）In mix up that the dense pulp suspension of slurry is transferred to Pulp dredger discongest groove, it is closed good to dredge
The agitating shaft with helical blade is provided with solution machine, wherein fluffer, vane thickness is 10mm, and pitch is 40mm, then 25
DEG C, reinforcing carried out to pulp suspension under 2000 r/min discongest 5min, to reach 38 ° of SR of predetermined beating degree；
（3）Turn down step（2）To 60 r/min, opening discongests groove lid to the revolution of middle fluffer, with special sampling cup from groove
20mL pulp suspensions are taken in the slurry of interior Uniform Flow, i.e., equivalent to the paper pulp fiber that oven-dry weight is 2 g, two parts of confessions is taken altogether and is beaten
Degree of beating parallel determination, while taking a small amount of for fibre morphology sign, then stopping fluffer rotation；
（4）By step（3）Middle taken pulp suspension is transferred to beating degree and determines in special 1000 mL graduated cylinders, adds water
To 1000mL, the freeness value for discongesting rear fibrous suspension is determined by standard method, reach predetermined freeness value；
（5）The morphological parameters for discongesting rear paper pulp fiber are determined using fiber quality analyzer；
（6）Take out step（4）In the paper pulp discongested, a portion be used to being measured physical property of pulp and point
Analysis, manufacturing paper with pulp for page is carried out with the measure of physical index by standard.
Discongest the result of Straw Pulp：Beating degree：38.4 ° of SR, average fiber length：0.557mm, tear index：
5.25mN·m2/ g, tensile index：62.2Nm/g, burst index：3.46kPa·m2/g。
Embodiment 5：The method for improving straw pulp beating degree and intensity is discongested in this laboratory by reinforcing, what the present embodiment was discongested
Straw pulp is rice straw pulp, is comprised the following steps that：
（1）Weigh straw pulp and add water and be adjusted to the fibrous suspension of mass percent concentration 6%, rubbed in preparation point
Dissipate uniform；
（2）By step（1）In mix up that the dense pulp suspension of slurry is transferred to Pulp dredger discongest groove, it is closed good to dredge
The agitating shaft with helical blade is provided with solution machine, wherein fluffer, vane thickness is 12mm, and pitch is 50mm, then 30
DEG C, reinforcing carried out to pulp suspension under 3500 r/min discongest 20min, to reach 52 ° of SR of predetermined beating degree；
（3）Turn down step（2）To 100 r/min, opening discongests groove lid to the revolution of middle fluffer, with special sampling cup from groove
33.3mL pulp suspensions are taken in the slurry of interior Uniform Flow, i.e., equivalent to the paper pulp fiber that oven-dry weight is 2 g, two parts of confessions is taken altogether
Beating degree parallel determination, while taking a small amount of for fibre morphology sign, then stopping fluffer rotation；
（4）By step（3）Middle taken pulp suspension is transferred to beating degree and determines in special 1000 mL graduated cylinders, adds water
To 1000mL, the freeness value for discongesting rear fibrous suspension is determined by standard method；
（5）（4）49 ° of SR of freeness value of measure fail to reach set goals, then need to cover notch, by step（2）、（3）
Continue to discongest the slurry 5min in groove, determine its freeness value, meet predetermined freeness value；
（6）The morphological parameters for discongesting rear paper pulp fiber are determined using fiber quality analyzer；
（7）Take out step（5）In the paper pulp discongested, a portion be used to being measured physical property of pulp and point
Analysis, manufacturing paper with pulp for page is carried out with the measure of physical index by standard.
Discongest the result of Straw Pulp：Beating degree：52 ° of SR, average fiber length：0.551mm, tear index：5.39mN·
m2/ g, tensile index：68.7Nm/g, burst index：3.55kPa·m2/g。
Embodiment 6：This discongests the method for improving straw pulp beating degree and intensity by reinforcing, and the straw pulp that the present embodiment is discongested is
Straw Pulp, comprises the following steps that：
（1）Weigh Straw Pulp and add water and be adjusted to the fibrous suspension of mass percent concentration 3%, rubbed in preparation
It is uniformly dispersed；
（2）By step（1）In mix up that the dense pulp suspension of slurry is transferred to Pulp dredger discongest groove, it is closed good to dredge
The agitating shaft with helical blade is provided with solution machine, wherein fluffer, vane thickness is 15mm, and pitch is 60mm, then 20
DEG C, reinforcing carried out to pulp suspension under 4500r/min discongest 40min, to reach 60 ° of SR of predetermined beating degree；
（3）Turn down step（2）To 150 r/min, opening discongests groove lid to the revolution of middle fluffer, with special sampling cup from groove
66.7mL pulp suspensions are taken in the slurry of interior Uniform Flow, i.e., equivalent to the paper pulp fiber that oven-dry weight is 2 g, two parts of confessions is taken altogether
Beating degree parallel determination, while taking a small amount of for fibre morphology sign, then stopping fluffer rotation；
（4）By step（3）Middle taken pulp suspension is transferred to beating degree and determines in special 1000 mL graduated cylinders, adds water
To 1000mL, the freeness value for discongesting rear fibrous suspension is determined by standard method, reach predetermined freeness value；
（5）The morphological parameters for discongesting rear paper pulp fiber are determined using fiber quality analyzer；
（6）Take out step（4）In the paper pulp discongested, a portion be used to being measured physical property of pulp and point
Analysis, manufacturing paper with pulp for page is carried out with the measure of physical index by standard.
Discongest the result of Straw Pulp：Beating degree：60 ° of SR, average fiber length：0.548mm, tear index：5.42mN·
m2/ g, tensile index：70.4Nm/g, burst index：3.72kPa·m2/g。
Claims (2)
1. it is a kind of that the method for improving straw pulp beating degree and intensity is discongested by reinforcing, it is characterised in that concrete technology step is as follows：
（1）Weigh straw pulp and add water and be adjusted to the fibrous suspension of mass percent concentration 3%~10%；
（2）By step（1）In mix up the dense pulp suspension of slurry and be transferred in Pulp dredger, be wherein provided with band in fluffer
The agitating shaft of helical blade, vane thickness is 10~15mm, and pitch is 40~60mm, closed to pulp suspension at 20~30 DEG C
Liquid carries out reinforcing and discongests, and regulation discongests speed and time to reach 38 ° of SR~70 ° SR of predetermined beating degree；
（3）After the completion of reinforcing is discongested, turn down and discongest speed to 60~150 r/min；
（4）The beating degree that slurry is determined slurry by national standard is taken, when freeness value fails to reach set goals, repeat step
（2）、（3）Continue to discongest slurry, untill predetermined freeness value is met；
（5）The straw pulp of predetermined beating degree is discongested, it is strong to carry out the handsheet of page, constant temperature and humidity page standard physical by national standard
The measure of degree；
Above-mentioned steps（2）The middle speed of discongesting discongested of strengthening is 1500~5000r/min, 5~40min of process time.
It is 2. according to claim 1 that the method for improving straw pulp beating degree and intensity is discongested by reinforcing, it is characterised in that：Grass
Starch is straw chemical pulp or Wheat Straw Pulp.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510709429.2A CN105401477B (en) | 2015-10-28 | 2015-10-28 | It is a kind of that the method for improving straw pulp beating degree and intensity is discongested by reinforcing |
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| CN201510709429.2A CN105401477B (en) | 2015-10-28 | 2015-10-28 | It is a kind of that the method for improving straw pulp beating degree and intensity is discongested by reinforcing |
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| CN105401477B true CN105401477B (en) | 2017-05-31 |
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| CN108169412B (en) * | 2017-11-28 | 2020-11-17 | 昆明理工大学 | Method for representing difficulty degree of fluffing performance of tobacco raw materials in paper-making reconstituted tobacco slurry |
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| CN1030474C (en) * | 1994-04-12 | 1995-12-06 | 黑龙江省萝北县人民政府 | Non-alkali paper making process |
| DE202004010166U1 (en) * | 2004-06-28 | 2004-10-14 | Estanit Gmbh | Refining machine, to break cellulose suspensions down into fibers, has a swing platform over the vessel to carry the propeller drive opened on swing supports against closing spring forces |
| CN102106599B (en) * | 2011-01-11 | 2013-04-17 | 中国海诚工程科技股份有限公司 | Pulping defibering technology for tobacco raw material of tobacco sheets in paper making method |
| CN102337700B (en) * | 2011-10-20 | 2014-04-09 | 山东泉林纸业有限责任公司 | Pulping method of boiling grass fiber materials and sodium carbonate |
| CN102936861A (en) * | 2012-12-10 | 2013-02-20 | 轻工业西安机械设计研究院 | Extrusion fluffer |
| CN103850145A (en) * | 2014-03-07 | 2014-06-11 | 北京正利恒丰浆纸有限公司 | Natural color fluff pulp and preparation method thereof |
| CN103981754A (en) * | 2014-05-30 | 2014-08-13 | 杭州家得好日用品有限公司 | Bamboo-fiber mosquito repelling and killing tablet and preparation method thereof |
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