CN105178075A - Application of efficient penetrating agent in high-yield pulp making - Google Patents
Application of efficient penetrating agent in high-yield pulp making Download PDFInfo
- Publication number
- CN105178075A CN105178075A CN201510594746.4A CN201510594746A CN105178075A CN 105178075 A CN105178075 A CN 105178075A CN 201510594746 A CN201510594746 A CN 201510594746A CN 105178075 A CN105178075 A CN 105178075A
- Authority
- CN
- China
- Prior art keywords
- consumption
- oven dry
- dry stock
- pulp
- yield
- 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.)
- Pending
Links
Abstract
The invention discloses application of an efficient penetrating agent in high-yield pulp making. The application is mainly characterized in that in high-yield pulp making, the efficient penetrating agent which has alkali resistance and oxidative resistance, is easy to dissolve in water and has good emulsifying and penetrating properties is selected to accelerate penetration of pre-immersing chemical liquid and increase the treatment degree of wood chips, improve pulp grinding quality, reduce the wood chip fiber loss in pulp grinding, increase the yield of pulp grinding and improve physical strength of pulp grinding. According to the technological method, the efficient penetrating agent is pumped into an inlet of a chemical mixing tank pump through a metering pump to be mixed with sodium hydroxide, sodium silicate, chelating agents and other chemicals, the mixture is pumped to an MSD outlet expansion pup joint through the chemical mixing tank pump to be mixed with hydrogen peroxide, and then the new mixture enters an immerser to react with the wood chips. According to the quality of needed pulp, the usage amount of H2O2 and NaOH is optimized. The cost of producing the high-yield pulp is lower, the physical strength of the pulp is better, the pulp making yield is higher, and the content of COD in discharged waste water is lower.
Description
Technical field
The present invention relates to the application of a kind of high-efficient penetrant in high yield cooking.
Background technology
Mainly rely in current reducing rules actual production and improve the control of MSD moment of torsion and increase the reaction time or increase chemicals usage, increase the extruding tearing effects to wood chip, make wood chip fully absorb chemicals.But MSD height moment of torsion, height are torn, under high concentration chemicals condition, wood chip fibre stream vector can be caused to increase; Make the wearing and tearing of the helical axis of MSD, blade, screen frame, tread plate aggravate, service life shortens simultaneously.And wood chip preimpregnation effect is bad, Specific energy will be caused to increase, the intensity of slurry reduces.
Summary of the invention
The object of the present invention is to provide the application of a kind of high-efficient penetrant in high yield cooking.
The present invention accelerates the degree for the treatment of of preimpregnation medicinal liquid osmosis to wood chip, improve defibrination environment, the process to wood chip is strengthened than traditional increase chemicals usage and the mode in reaction time, technique is simple, defibrination yield improves, COD content in waste water reduces, to energy-saving and emission-reduction and resources conservation significant.High-efficient penetrant, application operating is convenient, and production run is stablized, and the slurry physical strength of production improves, and makes it have wider applicability, and wood chip fiber loss reduces, and slurrying cost reduces.The high yield pulp physical strength applying the production of this technology is good, may be used for manufacturing paper with pulp of multiple paper product, its proportioning more than 30%.Be suitable for join that the paper kind of copying has that hectographic printing is low, light paper, xerography, digital printing paper, film coated base paper, papers for books and periodicals etc.
For achieving the above object, technical scheme of the present invention is as follows: the application of a kind of high-efficient penetrant in high yield cooking, it is characterized in that: (1) pulping fibre raw material: the wood chip choosing italian poplar, paper mulberry, dry land willow, strand length 19-25mm, thickness 4 ± 1mm, wood chip closes lattice rate≤80% mass percent, bark rate≤0.6%, wood chip moisture content≤40%; (2) the slurrying technological process of production: → chip washing → 1 section extruding preimpregnation of getting the raw materials ready, 1# preimpregnation liquid adds → 2 sections of extruding preimpregnation, 2# preimpregnation liquid adds → 1 section of mill, bleaching liquid addition point → 1# cyclone separator → cooling spiral → high dense drift tower → 1# dewatering thickener → 2 section mill → eliminating potential pool → double plate mill → intermediate pool → pressurized screen → good stock tank → polydisc → in dense storage starch tower; (3) high-efficient penetrant addition manner and addition: high-efficient penetrant is pumped into chemicals mixing channel pump intake by measuring pump and mixes with NaOH, sodium metasilicate, chelating agent, be pumped into MSD through chemicals mixing channel to export and enter macerator after expansion short circuit mixes with hydrogen peroxide and wood chip reacts, high-efficient penetrant addition is 0.15-0.6kgadmt
-1; (4) main process technology of production condition: (A) 1# Presoaker: liquid level 0-15%, NaOH consumption 0-0.1% to oven dry stock, H
2o
2consumption 0-0.5%, to oven dry stock, Na
2siO
3consumption 0.5-1.0% to oven dry stock, MgSO
4consumption 0-0.6% to oven dry stock, DTPA consumption 0-0.35% to oven dry stock, 1# reaction warehouse material level 30-70%, exhaust temperature 50-90 DEG C; (B) 2# Presoaker: liquid level 0-15%, NaOH consumption 2.0-4.0% to oven dry stock, H
2o
2consumption 2.0-3.5% to oven dry stock, Na
2siO
3consumption 1.0-2.0% to oven dry stock, MgSO
4consumption 0-0.5% to oven dry stock, DTPA consumption 0-0.15% to oven dry stock, 2# reaction warehouse material level 30-70%, exhaust temperature 70-95 DEG C; (C) bleach: liquid addition point is 1# disc mill blow-off pipe and high ration LLE top cooling spiral, NaOH consumption: 1.0-2.5% to oven dry stock, H
2o
2consumption: 2.0-3.5% to oven dry stock, Na
2siO
3consumption: 1.0-3.0% to oven dry stock, bleaching levels: 20-35%, bleaching temperature: 80-95 DEG C, bleaching time: 60-90min; (5) disposed slurry mass property is bleached: pulp brightness 78-85%ISO, freedom 150-250ml, tensile index 35-45Nm/g, bulk 2.3-2.9, light scattering coefficient 43-46m
2/ kg, absorption coefficient of light 0.82-1.0m
2/ kg, dirt count 60-150mm
2/ kg, fibre bundle content 0-0.3%.
High-efficient penetrant of the present invention is the aqueous solution of sodium alkyl sulfonate, fatty alcohol-polyoxyethylene ether, sulfamic acid, anhydrous sodium sulfate.
2# preimpregnation liquid addition point ton oven dry stock chemicals addition of the present invention is: NaOH20-40, H
2o
220-35kg, Na
2siO
310-20kg, MgSO
4consumption 0-5kg, DTPA consumption 0-1.5kg, reaction warehouse material level 30-70%, exhaust temperature 70-95 DEG C; Slurry ISO whiteness 76-85% obtained after the dense drift of height, tensile strength 37N.m/g, light scattering coefficient 45m
2/ kg, absorption coefficient of light 0.86m
2/ kg, fibre bundle content 0.2%, bulk 2.56cm
3/ g.
The present invention adds a kind of high-efficient penetrant in reducing rules preimpregnation liquid, this bleeding agent is a kind of anion surfactant, soluble in water and common organic solvents, there is good emulsification and permeance property, there is alkali resistance and oxidative resistance simultaneously, the surface tension that can reduce liquid solid-liquid interface is added when preimpregnation wood chip, increase the spreadability of liquid at the surface of solids, in the diffusivity of wood chip inside, permeability and swelling, improve the ability of the dipping swollen fiber of chemicals, thus reach fully softening wood chip, wood chip is easily ground, reduce refining energy consumption, extend the grinding machine life-span, reduce chemicals consumption, reduce COD discharge in waste water, promote yield: power consumption reduces 100kWhadmt
-1, sodium hydroxide concentration reduces 3-4kgadmt
-1, hydrogen peroxide use reduces 2-3kgadmt
-1, the COD in waste water reduces 20%.Both can bring economic benefit, have environmental benefit again.
Manufacturing technique of the present invention is simple, and the application technology of high-efficient penetrant, can produce the high yield pulp that physical strength is higher, makes it have wider applicability, and can substitute more chemical pulp copy paper, resource is more saved; Simultaneously wood chip fiber loss reduces, and defibrination yield is higher, and the COD content in waste water reduces, to energy-saving and emission-reduction and resources conservation significant.
Detailed description of the invention
High-efficient penetrant is pumped into chemicals mixing channel pump intake by measuring pump mix with chemicals such as NaOH, sodium metasilicate, chelating agents, be pumped into MSD through chemicals mixing channel to export and enter macerator after expansion short circuit mixes with hydrogen peroxide and wood chip reacts, and optimize H
2o
2with NaOH consumption.Its production procedure is, to get the raw materials ready---chip washing---1 section of extruding preimpregnation (1# preimpregnation liquid adds)---2 sections of extruding preimpregnation (2# preimpregnation liquid adds, and adds high-efficient penetrant)---1 section of mill (bleaching liquid addition point)---high dense drift tower of 1# cyclone separator---cooling spiral---; Ton oven dry stock high yield pulp1 high-efficient penetrant addition is 0.15-0.6kg; 2# preimpregnation liquid addition point ton oven dry stock chemicals addition is: NaOH20-40, H
2o
220-35kg, Na
2siO
310-20kg, MgSO
4consumption 0-5kg, DTPA consumption 0-1.5kg, reaction warehouse material level 30-70%, exhaust temperature 70-95 DEG C; Slurry ISO whiteness 76-85%, tensile strength 37N.m/g, light scattering coefficient 45m obtained after the dense drift of height
2/ kg, absorption coefficient of light 0.86m
2/ kg, fibre bundle content 0.2%, bulk 2.56cm
3/ g.
Claims (3)
1. the application of high-efficient penetrant in high yield cooking, it is characterized in that: (1) pulping fibre raw material: the wood chip choosing italian poplar, paper mulberry, dry land willow, strand length 19-25mm, thickness 4 ± 1mm, wood chip He Ge Shuais≤80% mass percent, bark rate≤0.6%, wood chip moisture content≤40%; (2) the slurrying technological process of production: → chip washing → 1 section extruding preimpregnation of getting the raw materials ready, 1# preimpregnation liquid adds → 2 sections of extruding preimpregnation, 2# preimpregnation liquid adds → 1 section of mill, bleaching liquid addition point → 1# cyclone separator → cooling spiral → high dense drift tower → 1# dewatering thickener → 2 section mill → eliminating potential pool → double plate mill → intermediate pool → pressurized screen → good stock tank → polydisc → in dense storage starch tower; (3) high-efficient penetrant addition manner and addition: high-efficient penetrant is pumped into chemicals mixing channel pump intake by measuring pump and mixes with NaOH, sodium metasilicate, chelating agent, be pumped into MSD through chemicals mixing channel to export and enter macerator after expansion short circuit mixes with hydrogen peroxide and wood chip reacts, high-efficient penetrant addition is 0.15-0.6kgadmt
-1; (4) main process technology of production condition: (A) 1# Presoaker: liquid level 0-15%, NaOH consumption 0-0.1% to oven dry stock, H
2o
2consumption 0-0.5%, to oven dry stock, Na
2siO
3consumption 0.5-1.0% to oven dry stock, MgSO
4consumption 0-0.6% to oven dry stock, DTPA consumption 0-0.35% to oven dry stock, 1# reaction warehouse material level 30-70%, exhaust temperature 50-90 DEG C; (B) 2# Presoaker: liquid level 0-15%, NaOH consumption 2.0-4.0% to oven dry stock, H
2o
2consumption 2.0-3.5% to oven dry stock, Na
2siO
3consumption 1.0-2.0% to oven dry stock, MgSO
4consumption 0-0.5% to oven dry stock, DTPA consumption 0-0.15% to oven dry stock, 2# reaction warehouse material level 30-70%, exhaust temperature 70-95 DEG C; (C) bleach: liquid addition point is 1# disc mill blow-off pipe and high ration LLE top cooling spiral, NaOH consumption: 1.0-2.5% to oven dry stock, H
2o
2consumption: 2.0-3.5% to oven dry stock, Na
2siO
3consumption: 1.0-3.0% to oven dry stock, bleaching levels: 20-35%, bleaching temperature: 80-95 DEG C, bleaching time: 60-90min; (5) disposed slurry mass property is bleached: pulp brightness 78-85%ISO, freedom 150-250ml, tensile index 35-45Nm/g, bulk 2.3-2.9, light scattering coefficient 43-46m
2/ kg, absorption coefficient of light 0.82-1.0m
2/ kg, dirt count 60-150mm
2/ kg, fibre bundle content 0-0.3%.
2. the application of high-efficient penetrant according to claim 1 in high yield cooking, is characterized in that: described high-efficient penetrant is the aqueous solution of sodium alkyl sulfonate, fatty alcohol-polyoxyethylene ether, sulfamic acid, anhydrous sodium sulfate.
3. the application of high-efficient penetrant according to claim 1 and 2 in high yield cooking, is characterized in that: described 2# preimpregnation liquid addition point ton oven dry stock chemicals addition is: NaOH20-40, H
2o
220-35kg, Na
2siO
310-20kg, MgSO
4consumption 0-5kg, DTPA consumption 0-1.5kg, reaction warehouse material level 30-70%, exhaust temperature 70-95 DEG C; Slurry ISO whiteness 76-85% obtained after the dense drift of height, tensile strength 37N.m/g, light scattering coefficient 45m
2/ kg, absorption coefficient of light 0.86m
2/ kg, fibre bundle content 0.2%, bulk 2.56cm
3/ g.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510594746.4A CN105178075A (en) | 2015-09-18 | 2015-09-18 | Application of efficient penetrating agent in high-yield pulp making |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510594746.4A CN105178075A (en) | 2015-09-18 | 2015-09-18 | Application of efficient penetrating agent in high-yield pulp making |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105178075A true CN105178075A (en) | 2015-12-23 |
Family
ID=54900468
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510594746.4A Pending CN105178075A (en) | 2015-09-18 | 2015-09-18 | Application of efficient penetrating agent in high-yield pulp making |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105178075A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106702802A (en) * | 2016-12-30 | 2017-05-24 | 中国科学院过程工程研究所 | Method for extracting high-purity cellulose from stalks in ionic liquid-sulfamic acid binary system |
| CN108411674A (en) * | 2018-04-26 | 2018-08-17 | 上海锴晨实业有限公司 | A kind of biological enzyme slurrying special type softening agent and preparation method thereof |
| CN110820403A (en) * | 2018-08-08 | 2020-02-21 | 岳阳林纸股份有限公司 | PRC-APMP pulping method of bamboo willow |
| CN113355933A (en) * | 2020-10-23 | 2021-09-07 | 高树森 | Environment-friendly pulping and papermaking composition, modifier and environment-friendly pulping and papermaking method |
| CN113605121A (en) * | 2021-08-10 | 2021-11-05 | 浙江金龙再生资源科技股份有限公司 | Preparation method of high-strength biochemical mechanical pulp |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1327101A (en) * | 2001-05-19 | 2001-12-19 | 赵炳晨 | Formula for paper making assistant |
| RU2230845C1 (en) * | 2003-04-17 | 2004-06-20 | Открытое акционерное общество "Целлюлозно-бумажный комбинат "Кама" | Method of preparing bleached chemico-thermomechanical wood pulp from broad-leaved wood |
| CN102660891A (en) * | 2012-06-06 | 2012-09-12 | 湖南美莱精化有限公司 | Papermaking chemical mechanical pulp presoak softener and preparation method thereof |
| CN104372704A (en) * | 2014-09-15 | 2015-02-25 | 岳阳林纸股份有限公司 | Chemical-mechanical pulp H2O2+OBA relay axurilary bleaching method |
-
2015
- 2015-09-18 CN CN201510594746.4A patent/CN105178075A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1327101A (en) * | 2001-05-19 | 2001-12-19 | 赵炳晨 | Formula for paper making assistant |
| RU2230845C1 (en) * | 2003-04-17 | 2004-06-20 | Открытое акционерное общество "Целлюлозно-бумажный комбинат "Кама" | Method of preparing bleached chemico-thermomechanical wood pulp from broad-leaved wood |
| CN102660891A (en) * | 2012-06-06 | 2012-09-12 | 湖南美莱精化有限公司 | Papermaking chemical mechanical pulp presoak softener and preparation method thereof |
| CN104372704A (en) * | 2014-09-15 | 2015-02-25 | 岳阳林纸股份有限公司 | Chemical-mechanical pulp H2O2+OBA relay axurilary bleaching method |
Non-Patent Citations (1)
| Title |
|---|
| 汪志平等: "渗透剂在P_RCAPMP制浆中的应用", 《纸和造纸》 * |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106702802A (en) * | 2016-12-30 | 2017-05-24 | 中国科学院过程工程研究所 | Method for extracting high-purity cellulose from stalks in ionic liquid-sulfamic acid binary system |
| CN108411674A (en) * | 2018-04-26 | 2018-08-17 | 上海锴晨实业有限公司 | A kind of biological enzyme slurrying special type softening agent and preparation method thereof |
| CN108411674B (en) * | 2018-04-26 | 2020-09-08 | 上海锴晨实业有限公司 | Special biological enzyme softening agent for pulping and preparation method thereof |
| CN110820403A (en) * | 2018-08-08 | 2020-02-21 | 岳阳林纸股份有限公司 | PRC-APMP pulping method of bamboo willow |
| CN113355933A (en) * | 2020-10-23 | 2021-09-07 | 高树森 | Environment-friendly pulping and papermaking composition, modifier and environment-friendly pulping and papermaking method |
| CN113355933B (en) * | 2020-10-23 | 2023-06-20 | 高树森 | Environment-friendly pulping and papermaking composition, modifier and environment-friendly pulping and papermaking method |
| CN113605121A (en) * | 2021-08-10 | 2021-11-05 | 浙江金龙再生资源科技股份有限公司 | Preparation method of high-strength biochemical mechanical pulp |
| CN113605121B (en) * | 2021-08-10 | 2023-10-13 | 浙江金龙再生资源科技股份有限公司 | Preparation method of high-strength biochemical slurry |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105178075A (en) | Application of efficient penetrating agent in high-yield pulp making | |
| US8133352B2 (en) | Method and apparatus for reducing impurities in cellulose fibers for manufacture of fiber reinforced cement composite materials | |
| CN100590255C (en) | Technique for chemomechanical pulp-making of poplar wood | |
| CN103243597B (en) | A kind of non-wood material free pulping method | |
| CN102587181B (en) | Environment-friendly clean pulping process | |
| CN101694075B (en) | Low energy consumption clean paper pulp extracting method and papermaking process thereof | |
| CN104099795B (en) | A kind of wet strong waste paper recycling chemical mechanical pulp-making method | |
| CN101638858A (en) | New pulping process of chemical mechanical pulp (CEMP) employing oil palm EFB high concentration extrusion displacement method | |
| CN103510418A (en) | New process for black liquor free chemical preparation of pulp | |
| CN101451320A (en) | Grass type low brightness pulp, preparation method and use thereof | |
| CN108071041A (en) | A kind of preparation method of mixing material bleaching reducing rules | |
| CN100400743C (en) | Quick cold soaking and mechanical pulping process for grass family | |
| CN102277786A (en) | Preparation method for double-sided gummed paper or electrostatic copy paper | |
| CN104790239B (en) | A kind of preparation method for the chemical-mechanical pulping penetrating agent with timber as raw material | |
| CN102926253A (en) | Method for pulping through needlebush pre-conditioning refiner chemical alkaline peroxide mechanical pulp (P-RC APMP) | |
| CN107974856A (en) | A kind of method that green chelating agent is applied in paper pulp hydrogen peroxide bleaching | |
| CN104611965A (en) | Pulping method for gum wood high-brightness semi-chemical pulp | |
| CN105624138A (en) | Compound enzyme preparation for promoting fiber modification through pulping novel household paper and preparation method and application thereof | |
| CN104372704A (en) | Chemical-mechanical pulp H2O2+OBA relay axurilary bleaching method | |
| CN102021854B (en) | Method for pulping cotton linter | |
| CN101942779A (en) | Retention aid used for manufacturing toilet paper | |
| CN104611964B (en) | A kind of pulping process of Acacia sulphite process high whiteness semi-chemical pulp | |
| CN104703718B (en) | The chemical treatment of lignocellulose fiber beam material and relative method and system | |
| CN102899951B (en) | Method for cleanly bleaching chemimechanical pulp | |
| CN104452395A (en) | Method and device for oxygen delignification for bagasse pulping |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20151223 |
|
| WD01 | Invention patent application deemed withdrawn after publication |