CN110093800A - A kind of method of wet mechanical activation high consistency refining - Google Patents
A kind of method of wet mechanical activation high consistency refining Download PDFInfo
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- CN110093800A CN110093800A CN201810092714.8A CN201810092714A CN110093800A CN 110093800 A CN110093800 A CN 110093800A CN 201810092714 A CN201810092714 A CN 201810092714A CN 110093800 A CN110093800 A CN 110093800A
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- Prior art keywords
- mechanical activation
- pulp
- raw material
- defibrination
- concentration
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- 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
- D21D1/20—Methods of refining
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Abstract
The present invention relates to a kind of methods of wet mechanical activation high consistency refining, the specific steps are as follows: load weighted pulp is added in the beaker equipped with water, the raw material to be ground that concentration is 1%-5% is tuned into, stirs evenly 10min under room temperature；Deployed raw material and grinding media volume are placed in ball mill according to 100g: 150-250g ratio, charged pressure is the CO of 0-2MPa2Gas, in 40-120 DEG C of at a temperature of defibrination 0.5-3h, grinding is slurried, and the technique after producing slurry is identical as original paper technology.The present invention substitutes traditional grinding method using high energy ball mill to plant pulp mechanical activation, make mutual extrusion between plant fiber, friction, commissure by mechanical force, improve the kink index of pulp degree of refinement and fiber, increase hydration reaction interface, reduce water consumption, the cohesive force of paper, folding resistance, anti-tensile be improved significantly.
Description
Technical field
The present invention relates to the field of papermaking of defibrination, in particular to a kind of pulp is highly concentrated in hygrometric state and mill by mechanical activation
Paste-making method.
Background technique
Mechanical activation is an emerging overlapping edges technology, belongs to the scope of mechanical (power) chemistry.It refers to solids
Matter destroys the high stability of natural polymers in the effect for the strong mechanical force such as rubbed, collided, impacted, sheared
Ordered structure makes solid generate plastic deformation while cracking, forms the defect of certain type, to be conducive to fiber
Cutting is easy to implement high concentration defibrination.The defibrination process of paper industry, refining concentration are the great influences for influencing defibrination quality
Factor, refining concentration is relatively higher, and the quality of paper products is better.In paper industry, it is traditional in, low refining process easily causes
The excessive cutting of paper-making fibre, leads to that paper strength is poor and energy consumption is higher, and water consumption is also larger, so that manufacturing enterprise's cost
It is promoted.In recent years, high concentration defibrination technology had certain progress, but averagely long for pulp material hardness, toughness, fiber
The complexity of degree, hydrophily etc., high consistency refining there is also technologies immature, defibrination unstable quality, effects of energy saving and emission reduction
The deficiencies of bad, limits the development of high consistency refining technology.Therefore, in order to strengthen mill for the minimizing requirement of process, fibre is ground
The length of dimension is uniform, and fibrous refinement degree is high, and swelling good, concentration of slurry is uniform, and paper surface is smooth, toughness is high, and yield is high,
Low energy consumption, and developing more defibrination technical methods is just particularly important, and there is no pulp highly concentrated in hygrometric state at present and by machinery
The grinding method patent application of activation.
Summary of the invention
An object of the present invention, which is to provide mechanical activation under a kind of hygrometric state, facilitates the method for fibre modification destruction, passes through
Mechanical activation refines pulp rapidly, improves specific surface area, increases the interface of hydration reaction, to reduce the side of water consumption
Method.The second object of the present invention is to provide a kind of method of wet mechanical activation high consistency refining, it is dense to improve slurry for enhanced leaching
Degree, and then paper performance is improved, to solve the deficiency of above-mentioned traditional grinding method.
In order to achieve the above objectives, the technical solution of the present invention is as follows:
Mechanical activation facilitates fibre modification destruction under a kind of hygrometric state, thus the method for reducing water consumption, raw material to be ground is dense
Degree is adjusted to 1%-5%, mechanical activation condition are as follows: atmosphere (CO in ball mill2Gas) pressure be 0-2MPa, temperature is at 40-120 DEG C
Between, time 0.5-3h.The liquid is deionized water, admittedly for various plant fiber biomass pulps.
A kind of method of wet mechanical activation high consistency refining, the specific steps are as follows:
Load weighted pulp is added in the beaker equipped with water, is tuned into concentration for the raw material to be ground of 1%-5%, under room temperature
Stir evenly 10min；
Deployed raw material and grinding media volume are placed in ball mill according to 100g: 150-250g ratio, are filled with pressure
Power is the CO of 0-2MPa2Gas, in 40-120 DEG C of at a temperature of defibrination 0.5-3h, grinding is slurried, technique and original after producing slurry
There is paper technology identical.
The present invention substitutes traditional grinding method using high energy ball mill to plant pulp mechanical activation, and method has such as
Lower advantage: 1. making mutual extrusion between plant fiber, friction, commissure by mechanical force, improves pulp degree of refinement and slurry
The surface area for expecting fiber, increases hydration reaction interface, reduces water consumption；2. reaction temperature is within the scope of 40-120 DEG C, right
Production equipment requirement is relatively low, easily operated；3. the gas medium CO in reaction system2, it is slightly soluble in water, is generated in solution
H+Concentration can accelerate reaction rate, shorten the reaction time, improve defibrination efficiency.
Specific embodiment
It is used to further illustrate the method that the present invention describes below by way of specific implementation example, but is not intended to limit this hair
It is bright.
Embodiment 1
(1) process flow: → slurry concentration adjusting is slurried in allotment raw material → mechanical activation.Sugarcane pulp 150g is taken, is added
Deionized water, being deployed into concentration is 1% to defibrination material, stirs 10min at room temperature；It will be to defibrination material and medium according to 100g:
The ratio of 150-250g is placed in ball mill, adjusts CO2Gas flow, until ball grinder interior pressure is 1.5Mpa, at 80 DEG C
React 0.5h；Slurries are collected, slurry concentration is adjusted, is produced by original paper technology.
(2) defibrination raw material: sugarcane pulp
(3) under refining concentration: 20%
Embodiment 2
(1) process flow: → slurry concentration adjusting is slurried in allotment raw material → mechanical activation.Sugarcane pulp 150g is taken, is added
Deionized water, being deployed into concentration is 3% to defibrination material, stirs 10min at room temperature；It will be to defibrination material and medium according to 100g:
The ratio of 150-250g is placed in ball mill, adjusts CO2Gas flow, until ball grinder interior pressure is 0.5Mpa, at 120 DEG C
React 1.5h；Slurries are collected, slurry concentration is adjusted, is produced by original paper technology.
(2) defibrination raw material: sugarcane pulp
(3) under refining concentration: 21%
Embodiment 3
(1) process flow: → slurry concentration adjusting is slurried in allotment raw material → mechanical activation.Sugarcane pulp 150g is taken, is added
Deionized water, being deployed into concentration is 5% to defibrination material, stirs 10min at room temperature；It will be to defibrination material and medium according to 100g:
The ratio of 150-250g is placed in ball mill, adjusts CO2Gas flow, until ball grinder interior pressure is 2Mpa, it is anti-at 40 DEG C
Answer 3h；Slurries are collected, slurry concentration is adjusted, is produced by original paper technology.
(2) defibrination raw material: sugarcane pulp
(3) under refining concentration: 23%
Embodiment 4
(1) process flow: → slurry concentration adjusting is slurried in allotment raw material → mechanical activation.Sugarcane pulp 150g is taken, is added
Deionized water, being deployed into concentration is 5% to defibrination material, stirs 10min at room temperature；It will be to defibrination material and medium according to 100g:
The ratio of 150-250g is placed in ball mill, adjusts CO2Gas flow, until ball grinder interior pressure is 1.5Mpa, at 80 DEG C
React 3h；Slurries are collected, slurry concentration is adjusted, is produced by original paper technology.
(2) defibrination raw material: sugarcane pulp
(3) under refining concentration: 22%
Embodiment 5
(1) process flow: → slurry concentration adjusting is slurried in allotment raw material → mechanical activation.Eucalyptus pulp 150g is taken, is added
Deionized water, being deployed into concentration is 3% to defibrination material, stirs 10min at room temperature；It will be to defibrination material and medium according to 100g:
The ratio of 150-250g is placed in ball mill, adjusts CO2Gas flow, until ball grinder interior pressure is 0.5Mpa, at 40 DEG C
React 3h；Slurries are collected, slurry concentration is adjusted, is produced by original paper technology.
(2) defibrination raw material: eucalyptus pulp
(3) under refining concentration: 21%
Embodiment 6
(1) process flow: → slurry concentration adjusting is slurried in allotment raw material → mechanical activation.Sugarcane pulp 150g is taken, is added
Deionized water, being deployed into concentration is 5% to defibrination material, stirs 10min at room temperature；It will be to defibrination material and medium according to 100g:
The ratio of 150-250g is placed in ball mill, adjusts CO2Gas flow, until ball grinder interior pressure is 1.5Mpa, at 80 DEG C
React 3h；Slurries are collected, slurry concentration is adjusted, is produced by original paper technology.
(2) defibrination raw material: sugarcane pulp
(3) under refining concentration: 21%
Embodiment 7
(1) process flow: → slurry concentration adjusting is slurried in allotment raw material → mechanical activation.Wheat straw pulp 150g is taken, is added
Deionized water, being deployed into concentration is 1% to defibrination material, stirs 10min at room temperature；It will be to defibrination material and medium according to 100g:
The ratio of 150-250g is placed in ball mill, adjusts CO2Gas flow, until ball grinder interior pressure is 1.5Mpa, at 80 DEG C
React 3h；Slurries are collected, slurry concentration is adjusted, is produced by original paper technology.
(2) defibrination raw material: wheat straw pulp
(3) under refining concentration: 22%
Embodiment 8
(1) process flow: → slurry concentration adjusting is slurried in allotment raw material → mechanical activation.Wheat straw pulp 150g is taken, is added
Deionized water, being deployed into concentration is 3% to defibrination material, stirs 10min at room temperature；It will be to defibrination material and medium according to 100g:
The ratio of 150-250g is placed in ball mill, adjusts CO2Gas flow, until ball grinder interior pressure is 2.0Mpa, at 120 DEG C
React 3h；Slurries are collected, slurry concentration is adjusted, is produced by original paper technology.
(2) defibrination raw material: wheat straw pulp
(3) under refining concentration: 20%
Embodiment 9
(1) process flow: → slurry concentration adjusting is slurried in allotment raw material → mechanical activation.Eucalyptus pulp 150g is taken, is added
Deionized water, being deployed into concentration is 1% to defibrination material, stirs 10min at room temperature；It will be to defibrination material and medium according to 100g:
The ratio of 150-250g is placed in ball mill, adjusts CO2Gas flow, until ball grinder interior pressure is 1.5Mpa, at 80 DEG C
React 3h；Slurries are collected, slurry concentration is adjusted, is produced by original paper technology.
(2) defibrination raw material: eucalyptus pulp
(3) under refining concentration: 23%
In practical applications, slurry concentration can be promoted to 21% or so the present invention, convert power consumption, water consumption, each to reduce about
20% and 35%.Therefore, the present invention can increase mutual extrusion between plant fiber, friction and commissure and act on, the cohesive force of paper,
Folding resistance, anti-tensile test result are good, and reduction effect is significant in electricity consumption and water consumption.
Claims (4)
1. a kind of method of wet mechanical activation high consistency refining, which is characterized in that method includes the following steps:
(1) load weighted pulp is added in the beaker equipped with water, is tuned into concentration for the raw material to be ground of 1%-5%, under room temperature
Stir evenly 10min；
(2) deployed raw material and grinding media volume are placed in ball mill according to 100g: 150-250g ratio, charged pressure
For the CO of 0-2MPa2Gas, in 40-120 DEG C of at a temperature of defibrination 0.5-3h, grinding is slurried, produce slurry after technique with it is original
Paper technology is identical.
2. a kind of method of wet mechanical activation high consistency refining according to claim 1, it is characterised in that: the reaction is applicable in
Consolidate admixture in liquid.
3. a kind of method of wet mechanical activation high consistency refining according to claim 1, it is characterised in that: pulp material is tuned into
Concentration is the raw material to be ground of 1%-5%.
4. a kind of method of wet mechanical activation high consistency refining according to claim 1, it is characterised in that: in CO2Gas pressure
For 0-2MPa, for temperature at 40-120 DEG C, the time of mechanical activation is 0.5-3h.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810092714.8A CN110093800A (en) | 2018-01-30 | 2018-01-30 | A kind of method of wet mechanical activation high consistency refining |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810092714.8A CN110093800A (en) | 2018-01-30 | 2018-01-30 | A kind of method of wet mechanical activation high consistency refining |
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| Publication Number | Publication Date |
|---|---|
| CN110093800A true CN110093800A (en) | 2019-08-06 |
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| CN201810092714.8A Pending CN110093800A (en) | 2018-01-30 | 2018-01-30 | A kind of method of wet mechanical activation high consistency refining |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0281273A1 (en) * | 1987-02-27 | 1988-09-07 | The BOC Group, Inc. | Cellulosic pulp |
| CN102617750A (en) * | 2012-03-07 | 2012-08-01 | 中国科技开发院广西分院 | Method for preparing micro-molecular dextran by catalyzing carbon dioxide |
| CN102942797A (en) * | 2012-10-17 | 2013-02-27 | 广西大学 | Plant fiber wood-plastic composite material and preparation method thereof |
| CN103696308A (en) * | 2012-09-27 | 2014-04-02 | 湖南桃花江实业有限公司 | Environment-friendly separation process for valuable components in biomass materials |
| CN106947002A (en) * | 2016-09-13 | 2017-07-14 | 广西科开成林科技有限公司 | A kind of method that mechanical activation prepares scintilla dextran |
-
2018
- 2018-01-30 CN CN201810092714.8A patent/CN110093800A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0281273A1 (en) * | 1987-02-27 | 1988-09-07 | The BOC Group, Inc. | Cellulosic pulp |
| CN102617750A (en) * | 2012-03-07 | 2012-08-01 | 中国科技开发院广西分院 | Method for preparing micro-molecular dextran by catalyzing carbon dioxide |
| CN103696308A (en) * | 2012-09-27 | 2014-04-02 | 湖南桃花江实业有限公司 | Environment-friendly separation process for valuable components in biomass materials |
| CN102942797A (en) * | 2012-10-17 | 2013-02-27 | 广西大学 | Plant fiber wood-plastic composite material and preparation method thereof |
| CN106947002A (en) * | 2016-09-13 | 2017-07-14 | 广西科开成林科技有限公司 | A kind of method that mechanical activation prepares scintilla dextran |
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Application publication date: 20190806 |