CN104928958A - Method of producing corrugated paper with straw - Google Patents
Method of producing corrugated paper with straw Download PDFInfo
- Publication number
- CN104928958A CN104928958A CN201510268337.5A CN201510268337A CN104928958A CN 104928958 A CN104928958 A CN 104928958A CN 201510268337 A CN201510268337 A CN 201510268337A CN 104928958 A CN104928958 A CN 104928958A
- Authority
- CN
- China
- Prior art keywords
- stalk
- straw
- corrugated paper
- hydrogen peroxide
- pickling
- 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
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Classifications
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21B—FIBROUS RAW MATERIALS OR THEIR MECHANICAL TREATMENT
- D21B1/00—Fibrous raw materials or their mechanical treatment
- D21B1/04—Fibrous raw materials or their mechanical treatment by dividing raw materials into small particles, e.g. fibres
- D21B1/12—Fibrous raw materials or their mechanical treatment by dividing raw materials into small particles, e.g. fibres by wet methods, by the use of steam
- D21B1/14—Disintegrating in mills
- D21B1/16—Disintegrating in mills in the presence of chemical agents
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
- D21C1/00—Pretreatment of the finely-divided materials before digesting
- D21C1/04—Pretreatment of the finely-divided materials before digesting with acid reacting compounds
Abstract
The invention discloses a method of producing corrugated paper with straw. The method includes the steps of preparing of raw materials, pretreatment of the straw, chemical pre-impregnating, primary hot grinding, tertiary hot grinding, screening, pulping, sheet making, and finishing. The short process is used in the production process, thus a washing and concentrating step is shortened and the pumping step is omitted. In the whole pulping process, power consumption is 10% lower than the power consumption for chemical pulps, water consumption is more than 70% higher than that for chemical pumps, boiling time is shorter, fuel consumption is decreased by 10% to 20%, the pulping rate is up to greater than 80%, and the production cost is lowered. On the basis of production of the high-strength corrugated paper, direct production cost of the paper is less than 1000 RMB per ton, and the economic benefit is excellent.
Description
Technical field
The present invention relates to a kind of straw that utilizes for the method for corrugated paper, belong to paper pulp papermaking technical field.
Background technology
Stalk is the principal by product of crops, is also a kind of important living resources, and China is a large agricultural country, and the year amount of regeneration of stalk reaches 600,000,000 tons.The agricultural crop straws such as cornstalk, sorghum stalk, cotton stalk are as a kind of plant material, and the Yin Qiyeduopi defect such as less own, after chemical method boiling, yield is low in addition waits the trouble on producing, and cornstalk class straw just almost has no chance with papermaking since ancient times.In recent years because life of farmers level improves, straw neither made animal feeding-stuff, heating of not also being used as to light a fire, and autumn harvest a large amount of cornstalk in season is burned, and not only caused the great wasting of resources but also full of smoke, became new environmental hazard.Thus develop the utilization of stalk resource, become the task of top priority.Through great efforts, cornstalk, cotton stalk etc. now can have been utilized to carry out pollution-free pulping and produced boxboard and high-strength corrugated base paper, and technique is simple, with low cost, the real good method for the reasonable production that turns waste into wealth.Along with developing rapidly of human civilization, people are after material life reaches certain level, and to life condition, the protection of natural environment is also strengthened day by day.The chemical pulping process that paper industry is continued to use always, due to a large amount of alkaline pollution in its waste discharge and the very high and color of black liquor COD, BOD value dark dark and environmental pollution that is that cause is self-evident, how to solve the contradiction between environmental protection, production, use three, just become the problem that paper industry is main.Finding a kind of low stain or free of contamination pulping process is the problem that we study always, particularly Production and Packaging paper using, as the paper such as boxboard or fluting medium kind, exchanging for regard to the cost that there is no need with sacrificing raw material and environmental protection.
Summary of the invention
Technical problem to be solved by this invention is: provide a kind of simple to operate, cost is low, utilize straw for the method for corrugated paper.
For solving the problems of the technologies described above, the technical solution used in the present invention is, utilize straw for a method for corrugated paper, its preparation process is: raw material → stalk preliminary treatment → Chemical impregnation → mono-section defibrator process slurry → tri-sections of defibrator process slurry → screening → making beating → handsheet → finished paper;
Described stalk preliminary treatment: add reactor after stalk being treated to 4 ~ 5cm segment, then add the mixed aqueous solution of pickling and hydrogen peroxide, control temperature 60-90 DEG C, stirring reaction 10-25min; Stalk in reactor to be taken out, the stalk that suction filtration takes out, the solution in removing stalk, and then with the NaOH solution washing more than 3 times of 5Wt.%-25Wt.%, naturally dry to moisture content of straws and be less than 15Wt.%;
The mixed aqueous solution addition of described pickling and hydrogen peroxide adds 5000 ~ 6000mL by 1Kg stalk; The NaOH aqueous solution of described 5Wt.%-25Wt.%, needs 1000 ~ 2000mL in each washing stalk amount used by 1Kg stalk; In described pickling and hydrogen peroxide mixed liquor, pickling mass concentration is 20 ~ 25Wt.%, and hydrogen peroxide mass concentration is 20 ~ 40Wt.%;
Normal pressure defibrator process: grinding plate of pulping machine gap is 0.06 ~ 0.8mm;
Screening the pulp: mesh size is 0.3 ~ 0.5mm.
Screen centrifuge or vanning is adopted in described screening the pulp process.
Described pickling is sulfuric acid.
Described aqueous hydrogen peroxide solution preferred mass concentration is 20 ~ 25Wt.%.
Described stalk is selected from mixing a kind of or several arbitrarily in following stalk: rice straw, wheat straw waste, cotton stalk, maize straw, soybean stalk, hybrid giant napier.
Owing to have employed technique scheme, tool of the present invention has the following advantages and effect:
1) this invention takes many boiling-offs-mono-chemistry to carry out cellulose extraction with double solvents process integration, decrease the harm to environment, improve the recovery rate of regenerated cellulose.
2) because production process have employed shorter technological process, decrease washing and enrichment process, save pumping procedure.Whole pulping process power consumption actual specific chemical pulp reduces 10%, water saving more than 70%, and digestion time is short, and capable of saving fuel 10 ~ 20%, pulping yield, up to more than 80%, reduces production cost.To produce high-strength corrugated paper, the production cost that should connect of paper per ton is less than 1000 yuan, and economic benefit is very good.
Detailed description of the invention
Below by specific embodiment, the present invention is described in further detail.
Embodiment 1
Reactor is added after 500g rice straw is treated to 4 ~ 5cm segment, add containing pickling (mass percentage is the aqueous sulfuric acid of 20Wt.%) again, the mixed aqueous solution (2000mL) of hydrogen peroxide (20Wt.%) (pickling and hydrogen peroxide mass ratio are 1:1) adds reactor, regulate reaction temperature 60 DEG C, reaction 10min, stalk is taken out from reactor, the stalk that suction filtration takes out, solution in removing stalk, the NaOH aqueous solution that 2100mL concentration is 5Wt.% is used to divide three washing stalks, after having washed, naturally dry to moisture content of straws and be less than 15Wt.%,
Liquor ratio is 1:5, sends in fiberizer carry out defibrination process when maximum temperature is 140 DEG C after being incubated 40min.Inflow is about 3.5L/min, and the mill spacing of one section of mill is 0.1mm, and after defibrination, beating degree is 16 ° of sR; The mill spacing of second segment is 0.08mm, and after defibrination, beating degree is 30 ° of SR; 3rd section of defibrination spacing adopts 0.05mm, and the beating degree after defibrination is 38 ° of sR.The yield of paper pulp is 63.8%.Then pull an oar in beater, beating consistency is 1.5%, stops, carrying out handsheet when beating degree is 45 ° of about SR, and l Water Paper page is dried squeeze process in hydraulic press after again, after constant temperature and humidity process, survey physical strength.
Claims (5)
1. utilize straw for a method for corrugated paper, its preparation process is: raw material → stalk preliminary treatment → Chemical impregnation → mono-section defibrator process slurry → tri-sections of defibrator process slurry → screening → making beating → handsheet → finished paper;
Described stalk preliminary treatment: add reactor after stalk being treated to 4 ~ 5cm segment, then add the mixed aqueous solution of pickling and hydrogen peroxide, control temperature 60-90 DEG C, stirring reaction 10-25min; Stalk in reactor to be taken out, the stalk that suction filtration takes out, the solution in removing stalk, and then with the NaOH solution washing more than 3 times of 5Wt.%-25Wt.%, naturally dry to moisture content of straws and be less than 15Wt.%;
The mixed aqueous solution addition of described pickling and hydrogen peroxide adds 5000 ~ 6000mL by 1Kg stalk; The NaOH aqueous solution of described 5Wt.%-25Wt.%, needs 1000 ~ 2000mL in each washing stalk amount used by 1Kg stalk; In described pickling and hydrogen peroxide mixed liquor, pickling mass concentration is 20 ~ 25Wt.%, and hydrogen peroxide mass concentration is 20 ~ 40Wt.%;
Normal pressure defibrator process: grinding plate of pulping machine gap is 0.06 ~ 0.8mm;
Screening the pulp: mesh size is 0.3 ~ 0.5mm.
2. a kind of straw that utilizes according to claim 1 is for the method for corrugated paper, it is characterized in that: adopt screen centrifuge or vanning in described screening the pulp process.
3. a kind of straw that utilizes according to claim 1 is for the method for corrugated paper, it is characterized in that: described pickling is sulfuric acid.
4. a kind of straw that utilizes according to claim 1 is for the method for corrugated paper, it is characterized in that: described aqueous hydrogen peroxide solution preferred mass concentration is 20 ~ 25Wt.%.
5. a kind of straw that utilizes according to claim 1 is for the method for corrugated paper, it is characterized in that: described stalk is selected from mixing a kind of or several arbitrarily in following stalk: rice straw, wheat straw waste, cotton stalk, maize straw, soybean stalk, hybrid giant napier.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510268337.5A CN104928958A (en) | 2015-05-25 | 2015-05-25 | Method of producing corrugated paper with straw |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510268337.5A CN104928958A (en) | 2015-05-25 | 2015-05-25 | Method of producing corrugated paper with straw |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104928958A true CN104928958A (en) | 2015-09-23 |
Family
ID=54116368
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510268337.5A Pending CN104928958A (en) | 2015-05-25 | 2015-05-25 | Method of producing corrugated paper with straw |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104928958A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107009686A (en) * | 2017-04-26 | 2017-08-04 | 杨太松 | A kind of stalk cellulose corrugated paper moistureproof with antibacterial and preparation method thereof |
| CN108442171A (en) * | 2018-03-22 | 2018-08-24 | 哈尔滨工业大学 | A kind of corrugating media material prepared using stalk as raw material and method |
| CN109750546A (en) * | 2018-12-13 | 2019-05-14 | 华南理工大学 | A kind of preparation method of oil-tea camellia husks high yield pulp |
| CN113774707A (en) * | 2021-06-18 | 2021-12-10 | 绿壳(海南)生物环保科技集团有限公司 | Green preparation method of grass-based paperboard |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0199481A1 (en) * | 1985-04-04 | 1986-10-29 | Caxton Paper Limited | A process for the manufacture of cellulose pulps |
| CN1928219A (en) * | 2006-09-27 | 2007-03-14 | 张荣斌 | Process for preparing straw fiber |
| CN102154906A (en) * | 2011-04-20 | 2011-08-17 | 山东泉林纸业有限责任公司 | Paper pulp prepared from maize straw, preparation method thereof and paper product prepared from paper pulp |
| CN102561094A (en) * | 2012-01-06 | 2012-07-11 | 黑龙江浩源生物科技有限公司 | Method for making pulp and paper by using cornstalk xylose residue |
| CN102787380A (en) * | 2012-08-08 | 2012-11-21 | 张家港市天一纺织有限公司 | Method for preparing straw regenerated cellulose fiber |
| CN104631204A (en) * | 2015-01-27 | 2015-05-20 | 北京金梦地模塑科技开发有限公司 | Production process method for novel crop straw environment-friendly material |
-
2015
- 2015-05-25 CN CN201510268337.5A patent/CN104928958A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0199481A1 (en) * | 1985-04-04 | 1986-10-29 | Caxton Paper Limited | A process for the manufacture of cellulose pulps |
| CN1928219A (en) * | 2006-09-27 | 2007-03-14 | 张荣斌 | Process for preparing straw fiber |
| CN102154906A (en) * | 2011-04-20 | 2011-08-17 | 山东泉林纸业有限责任公司 | Paper pulp prepared from maize straw, preparation method thereof and paper product prepared from paper pulp |
| CN102561094A (en) * | 2012-01-06 | 2012-07-11 | 黑龙江浩源生物科技有限公司 | Method for making pulp and paper by using cornstalk xylose residue |
| CN102787380A (en) * | 2012-08-08 | 2012-11-21 | 张家港市天一纺织有限公司 | Method for preparing straw regenerated cellulose fiber |
| CN104631204A (en) * | 2015-01-27 | 2015-05-20 | 北京金梦地模塑科技开发有限公司 | Production process method for novel crop straw environment-friendly material |
Non-Patent Citations (1)
| Title |
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| 吴养育 杨会: "利用农作物秸秆原料生产包装用纸板", 《中国造纸学报》 * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107009686A (en) * | 2017-04-26 | 2017-08-04 | 杨太松 | A kind of stalk cellulose corrugated paper moistureproof with antibacterial and preparation method thereof |
| CN108442171A (en) * | 2018-03-22 | 2018-08-24 | 哈尔滨工业大学 | A kind of corrugating media material prepared using stalk as raw material and method |
| CN109750546A (en) * | 2018-12-13 | 2019-05-14 | 华南理工大学 | A kind of preparation method of oil-tea camellia husks high yield pulp |
| CN109750546B (en) * | 2018-12-13 | 2021-08-10 | 华南理工大学 | Preparation method of high-yield oil-tea camellia shell pulp |
| CN113774707A (en) * | 2021-06-18 | 2021-12-10 | 绿壳(海南)生物环保科技集团有限公司 | Green preparation method of grass-based paperboard |
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Application publication date: 20150923 |