CN1786340A - Corrugated paper produced by steam blasting straw to pulp and its production method - Google Patents
Corrugated paper produced by steam blasting straw to pulp and its production method Download PDFInfo
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Abstract
The invention relates to light weight high fatigue resistance semi-chemical corrugated paper produced by steam blasting stalk Kraft process and its manufacturing method. The method includes the following steps: using stalk as the raw material; do steam blasting after coarse cutting; adding its 0.5-2% bone dry weight into caustic soda; filling in steam blasting pot; vapor phase boiling temperature is 145-180 deg.C; pressure is 0.9-2.0MPa; treatment is time 12-18 min; gaining steam blasting stalk; washing and extracting; coarse beating; sieving; purifying; fine beating; gaining steam blasting ryegrass pulp; mixing the pulp and the existing natural color long fiber with 50-70% and 30-50% of their absolute dry percentages; facing wire and forming; pressing; drying; balling up to gain finished products. The invention has the advantages of low energy consumption, low pollution, and high yield. And it is good for environmental protection. The produced semi-chemical corrugated paper has the features of light weight, high fatigue resistance, and flat appearance.
Description
Technical field
The present invention relates to a kind of fluting medium and production method thereof, especially relate to a kind of fluting medium and production method thereof of utilizing steam blasting straw to pulp to produce.
Background technology
Fluting medium can also be used to packing furniture, big part electrical equipment, Counterfeit Item, rubber except that being widely used in packaging for foodstuff.Because this body structure of corrugated board has very high strength/weight ratio, is a kind of very good packaging material.China's paper products are fluting medium especially, mainly based on non-wood pulp structure, traditional pulping process is boiling plant material under certain pressure and temp with alkali or acid, wherein account for raw material half the non-cellulose raw material and whole industrial chemicals as waste discharge, not only energy consumption is big, yield is low, and need a large amount of chemicalss, and make pulping process produce a large amount of waste gas and waste liquids, cause extremely serious environmental pollution.
Steam explosion pulping is to utilize steam explosion to having a kind of new technology that cyto-architectural plant fiber material is handled slurrying.Under the effect of certain steam, temperature, pressure and a small amount of chemicals, make the chemical composition generation physics of fibrous raw material, the variation of chemistry, and in moment that pressure discharges suddenly, intracellular steam expands suddenly, thereby make fiber be emanated, disperse, part is peeled off lignin, and raw material torn is fubril, as " explosion " taken place.The pulping waste liquor pollutional load is compared with traditional pulping process and is reduced about 1/5～1/4.Domestic research to explosion pulping begins starting from twentieth century the mid-80, and has delivered some research papers.But the object of technology and research is timber, and all adopts chemicals to go ahead of the rest and carry out explosion again after the preliminary treatment, not only expends a large amount of chemical substances, and has the serious problem of environmental pollution.1999, Chinese Academy Of Sciences Process Engineering Research Institute proposed not add the low pressure explosion imagination of chemicals at straw, and then utilizes 1m
3It is quick-fried that the quick-fried equipment of vapour has carried out spray, sprays material after quick-fried and pull an oar under laboratory conditions and copy sheet.After after being expounded through peer review, thinking only has 1m
3The quick-fried test of single cylinder vapour and laboratory slurrying machine hand skill and imperfection and reliable, must carry out pilot scale after, can drop into large-scale industrial production.Before application patent of the present invention, some units and part expert also study and inquire into through long " steam blasting " method both at home and abroad, but have not all reached the degree that large industrialized is produced.
The patent No. is 99111449, Granted publication day is on January 8th, 2003, denomination of invention is for " utilizing the pollution-free method of the quick-fried straw kind of low pressure vapour plant system paper pulp ", patentee are the patent of invention of Chemical Industry ﹠ Metallrygy Research Office of CAS, relates to a kind of pollution-free method of utilizing low pressure steam puffed stalk class plant system paper pulp.It is characterized in that will be rough lumber be that the straw plant of 20～30 millimeters long is packed in the steam-explosion jar, with the water of spray pattern adding with respect to raw material dry weight about 34%, after the pressure of 1.2～1.7MPa was handled about 10 minutes down, instant decompression discharged, and promptly gets steam puffed stalk class plant; Gained steam puffed stalk class plant is with 5 times water extracting 3 times, up to obtain copying paper with traditional handicraft.
Its claim is " a kind of pollution-free method of utilizing low pressure steam puffed stalk class plant system paper pulp; comprise the processing of straw plant and slurries; it is characterized in that with rough lumber being that the straw plant of 20～30 millimeters long is packed in the steam-explosion jar; add water with respect to raw material dry weight about 34% with spray pattern; after the pressure of 1.2～1.7MPa is handled about 10 minutes down; instant decompression release promptly gets steam puffed stalk class plant; Gained steam puffed stalk class plant is with 5 times water extracting 3 times, and after the bursting charge dilution after the extracting, the concentration with 10% adds disc mill pulls an oar, up to obtaining paper with traditional handicraft.”
Summary of the invention
The low quantitative high-strength corrugated base paper and the production method thereof that the purpose of this invention is to provide a kind of low energy consumption that utilizes steam blasting straw to pulp to produce, low pollution, high yield.
To achieve these goals, a kind of low quantitative high-strength corrugated base paper that utilizes steam blasting straw to pulp to produce of the present invention, it is characterized in that: be raw material with the straw, after rough lumber, carry out steam blasting, in the steam blasting operation, press 0.5～2% adding caustic soda of the oven dry weight of straw raw material, in the steam-explosion jar of packing into, handled 12～18 minutes under 145～180 ℃ of vapor phase pulping temperature, 0.9～2.0MPa pressure, instant decompression discharges and obtains the quick-fried straw of vapour; Wash then that extraction, thick making beating, screening purify, smart pulping process and make the steam exploded wheat straw slurry; Then the steam exploded wheat straw slurry that makes is mixed with existing true qualities long fiber pulp, its slurry mixing match by over dry total amount percentage is: steam exploded wheat straw slurry over dry total amount: 50～70%, and true qualities long fiber pulp over dry total amount: 30～50%; Then mixed approach flow is shaped, squeezing, dry, batch and make finished product.
According to described a kind of low quantitative high-strength corrugated base paper that utilizes steam blasting straw to pulp to produce, it is characterized in that: in described steam blasting operation, press 1～1.5% adding caustic soda of the oven dry weight of straw raw material, pack in the steam-explosion jar, under 150～170 ℃ of vapor phase pulping temperature, handled 3～8 minutes under 0.9Mpa～1.1Mpa pressure earlier, handled 8～11 minutes under 1.4Mpa～1.8Mpa pressure then, instant decompression discharges and obtains the quick-fried straw of vapour.
According to described a kind of low quantitative high-strength corrugated base paper that utilizes steam blasting straw to pulp to produce, it is characterized in that: in described steam blasting operation, press 1.5% adding caustic soda of the oven dry weight of straw raw material, pack in the steam-explosion jar, under 150～170 ℃ of vapor phase pulping temperature, handled 5 minutes under 1.0Mpa pressure earlier, handled 10 minutes under 1.6Mpa pressure then, instant decompression discharges and obtains the quick-fried straw of vapour.
According to described a kind of low quantitative high-strength corrugated base paper that utilizes steam blasting straw to pulp to produce, it is characterized in that: described steam exploded wheat straw slurry with existing true qualities long fiber pulp mixing match by over dry total amount percentage is: steam exploded wheat straw slurry over dry total amount: 60%, and true qualities long fiber pulp over dry total amount: 40%.
A kind of production method of utilizing the low quantitative high-strength corrugated base paper of steam blasting straw to pulp production, it is characterized in that: be raw material with the straw, after rough lumber, carry out steam blasting, in the steam blasting operation, press 0.5～2% adding caustic soda of the oven dry weight of straw raw material, pack in the steam-explosion jar, handled 12～18 minutes under 145～180 ℃ of vapor phase pulping temperature, 0.9～2.0MPa pressure, instant decompression discharges and obtains the quick-fried straw of vapour; Wash then that extraction, thick making beating, screening purify, smart pulping process and make the steam exploded wheat straw slurry; Then the steam exploded wheat straw slurry that makes is mixed with existing true qualities long fiber pulp, its slurry mixing match by over dry total amount percentage is: steam exploded wheat straw slurry over dry total amount: 50～70%, and true qualities long fiber pulp over dry total amount: 30～50%; Then mixed approach flow is shaped, squeezing, dry, batch and make finished product.
According to the described production method of utilizing the low quantitative high-strength corrugated base paper of steam blasting straw to pulp production, it is characterized in that: in described steam blasting operation, press 1～1.5% adding caustic soda of the oven dry weight of straw raw material, pack in the steam-explosion jar, under 150～170 ℃ of vapor phase pulping temperature, handled 3～8 minutes under 0.9Mpa～1.1Mpa pressure earlier, handled 8～11 minutes under 1.4Mpa～1.8Mpa pressure then, instant decompression discharges and obtains the quick-fried straw of vapour.
According to the described production method of utilizing the low quantitative high-strength corrugated base paper of steam blasting straw to pulp production, it is characterized in that: in described steam blasting operation, press 1.5% adding caustic soda of the oven dry weight of straw raw material, pack in the steam-explosion jar, under 150～170 ℃ of vapor phase pulping temperature, handled 5 minutes under 1.0Mpa pressure earlier, handled 10 minutes under 1.6Mpa pressure then, instant decompression discharges and obtains the quick-fried straw of vapour; Described steam exploded wheat straw slurry with existing true qualities long fiber pulp mixing match by over dry total amount percentage is: steam exploded wheat straw slurry over dry total amount: 60%, and true qualities long fiber pulp over dry total amount: 40%.
According to the described production method of utilizing the low quantitative high-strength corrugated base paper of steam blasting straw to pulp production, it is characterized in that: in the pulp washing abstraction process:
Press master advances to starch cloth slurry concentration 5.0～10%
Press master pulp concentration 26.0～30.0%
Fiber content 3g/l in the shove liquid.
According to the described production method of utilizing the low quantitative high-strength corrugated base paper of steam blasting straw to pulp production,
It is characterized in that: in the thick pulping process:
18～20 ° of SR of beating degree
Weight in wet base 7.0～8.0g
In the smart pulping process:
23～25 ° of SR of beating degree
Fiber wet weight 3.0～5.0g.
According to the described production method of utilizing the low quantitative high-strength corrugated base paper of steam blasting straw to pulp production, it is characterized in that: in the Top wire former operation:
27 ± 3 ° of SR of pulping beating degree
Pulping weight in wet base 4.0～6.0g
Online concentration 0.8～1.0%
Online pH value 6.0～8.0.
The present invention is based on and utilizes middle pressure steam explosion treatment crop stalk, the characteristics that can make fiber be dispersed, emanate, the new method of opening up Applied Physics principle pulping and paper-making.Purpose is to overcome contaminated environment that prior art exists, production process complexity, the product yield is low, production cost is high shortcoming, and an advanced person, novelty, process route unique, that be easy to suitability for industrialized production be provided, in the method first Application 4 50m
3Steam-explosion jar, equipment debugging by repeatedly and a large amount of slurries detect test, continue to optimize production technology, finally progressively capture every technical barrier, successfully output qualified slurry, be the contaminated solution problem simultaneously, take sewage special treatment technology, reach hierarchical processing and recycle purpose, really realized the zero-emission of waste water.Make being applied in the large scale industry production of the quick-fried technology success of vapour.The method has low energy consumption, low pollutes, the character of high yield, and the packing of producing and refrigeration specialized package fluting medium have low quantitatively, high strength, the uniform characteristics of smooth appearance.
The present invention utilizes steam blasting straw to pulp production to hang down the quantitative high-strength corrugated base paper fluting medium, and paper machine speed can reach 300 meters/minute, and daily production capacity can reach 150 tons.
Description of drawings
Fig. 1 is a process chart of the present invention.
Fig. 2 is a concrete process chart of the present invention.
The specific embodiment
Technical scheme of the present invention is as follows:
(20～30mm) is raw material with the straw after cutting off in the present invention, after dedusting, utilize middle pressure steam explosion treatment fiber, again through washing extraction, thick making beating, screening, purification, concentrated, smart pulping process slurrying, and mix the high-strength corrugated base paper of manufacturing paper with pulp with a small amount of true qualities long stuff.
Specifically technological process is as shown in Figure 1 and Figure 2:
Technological process comprises: straw, rough lumber (20～30mm), steam blasting, washing extract, thick making beating, screening purification, smart making beating, Top wire former, squeezing, drying, batch.
Among the present invention, straw can be agricultural byproducts such as straw, wheat straw, cornstalk, beanstalk, sorghum stalks, bagasse, cotton seed bar.
A kind of low quantitative high-strength corrugated base paper that utilizes steam blasting straw to pulp to produce of the present invention, it is characterized in that: be raw material with the straw, after rough lumber, carry out steam blasting, in the steam blasting operation, press 0.5～2% adding caustic soda (NaoH) of the oven dry weight of straw raw material, pack in the steam-explosion jar, 145～180 ℃ of vapor phase pulping temperature, handled under 0.9～2.0MPa pressure 12～18 minutes, instant decompression discharges and obtains the quick-fried straw of vapour; Wash then that extraction, thick making beating, screening purify, smart pulping process and make the steam exploded wheat straw slurry; Then the steam exploded wheat straw slurry that makes is mixed with existing true qualities long fiber pulp, its slurry mixing match by over dry total amount percentage is: steam exploded wheat straw slurry over dry total amount: 50～70%, and true qualities long fiber pulp over dry total amount: 30～50%; Then mixed approach flow is shaped, squeezing, dry, batch and make finished product.
Among the present invention, steam blasting refers to the straw of rough lumber (20～30mm is long) of packing in the steam-explosion jar of certain scale, and adds 0.5～2% caustic soda, wherein preferably presses 1～1.5% adding caustic soda of the oven dry weight of straw raw material.Preferred 150 ℃～170 ℃ of vapor phase pulping temperature.Preferably handled 3～8 minutes under 0.9Mpa～1.1Mpa pressure earlier during pressurized treatments, it is better wherein to handle 5 minutes effects under 1.0Mpa pressure.1.4Mpa～1.8Mpa pressure was handled 8～11 minutes down then, and it is better wherein to handle 10 minutes effects under 1.6Mpa pressure, and instant decompression discharges and promptly gets the quick-fried straw of vapour then.
In the inventive method, at the washing abstraction process because the pulp fiber of vapour after quick-fried is thick, very, general low pressure reduction washing facility result of use is undesirable, has finally adopted double helix shove equipment.Through repeatedly demonstration, according to the characteristics of the quick-fried slurry of vapour, press master advances to starch cloth slurry concentration 5.0～10% at last.
In the inventive method, because the dispersion of the quick-fried generation of vapour, the material of segregation, though changing in shape through spraying quick-fried back major part, but still can not manufacture paper with pulp by pulping, this needs a preprocessing process, so that the operation of back ordinary production continuously, at the characteristic of material, selected to be cut to the master, discongesting is the making beating mode of assisting, and has guaranteed the quality of pulping, paste mill grinding concentration 2.8～3.0%, its making beating degree has certain requirement: 18～20 ° of SR of beating degree, weight in wet base 7.0～8.0g.
In the method for the present invention, owing to only added 1.5% caustic soda in the quick-fried process of vapour, cellulose, hemicellulose lose seldom in the straw, and lignin is retained in the slurry in a large number, and the pulp yield height can reach 65～75%, improve 15～30% than chemical pulping.
The quick-fried slurry of described vapour is after the essence making beating reaches the technic index of regulation, mix with true qualities long stuff (the optimised process index is a beating degree 30 ± 2, weight in wet base 5～7), best proportioning is the quick-fried slurry 60% of vapour, true qualities long stuff over dry total amount 40% is manufactured paper with pulp into paper through online.
At squeezing process, owing in the quick-fried process of vapour, only added 1.5% caustic soda, it is higher relatively to contain lignin in the quick-fried disposed slurry of vapour, the relative chemical pulp of fibrillating degree is less, therefore drainage rate is very fast in the shaping expressing process, required squeezing linear pressure (is generally precompressed zone line pressure: 50～70KN/m than chemical pulp is low, one nip line pressure, 120～180KN/m, two nip line pressures 150～200KN/m), whole piece explosion pulping production line centralized Control, only need two people operation, greatly reduce working strength of workers, the automaticity height.
Blasting process only consumes steam, and its consumption is 0.7～1.5 ton of steam/ton straw.
In the present invention, the discarded object that pulping and paper-making produces adopts the design concept of cleaner production to carry out closed circulation and uses, and waste residue is used to make biological organic fertilizer, recycle after the waste liquid hierarchical processing.
Operations such as among the present invention, washing extraction, thick making beating, screening purify, essence making beating require certain process conditions, and according to the raw material difference, optimum condition is different.
Embodiment:
Procedure for preparation:
Tablet length 20～30mm
Dust content≤4%
The steam blasting operation:
Among the present invention, the steam blasting straw of rough lumber (20～30mm is long) that refers to pack in the steam-explosion jar of certain scale, and add a small amount of caustic soda is 145～180 ℃ of vapor phase pulping temperature, locate 12～18 minutes under 0.9～2MPa pressure.Preferably handled 5 minutes under 150～170 ℃ of vapor phase pulping temperature, 0.9～1.1MPa pressure, handled 10 minutes down in 1.4～1.8MPa pressure then, instant decompression discharges and promptly gets the quick-fried straw of vapour then.
This operation capital equipment is steam-explosion jar and jetting storehouse, after the steam blasting disposed slurry drops into jetting storehouse, must be through four spiral conveyors and a main spiral conveyor, and establish sparge pipe in the spiral second half section, directly feeding is to the press master pulp distributor.Concrete technological parameter is as follows:
Liquor ratio 1: 1
Alkali charge (pressing the oven dry weight of straw raw material) 0.5～2%, best 1.5%
Low pressure 0.9～1.1Mpa, best 1.0Mpa
Dwell time 3～8Min, best 5Min
High pressure 1.4～1.8Mpa, best 1.6Mpa
Dwell time 8～11Min, best 10Min
145～180 ℃ of vapor phase pulping temperature, preferred 150 ℃～170 ℃, best 160 ℃.(illustrate: if temperature is low excessively, can't split fibre; Temperature is too high, and quick-fried too broken of slurry is unfavorable for papermaking equally.)
The washing abstraction process:
Press master advances to starch cloth slurry concentration 5.0～10%
Press master pulp concentration 26.0～30.0%
Fiber content in the shove liquid≤2～4g/l
Thick pulping process:
Paste mill grinding concentration 2.8～3.0%
18～20 ° of SR of beating degree
Weight in wet base 7.0～8.0g
The screening cleaning procedure:
Screening concentration 1.5～2.0%
Advance to starch pressure 0.15～0.25MPa
Inlet outlet pressure differential 0.015～0.05MPa
Concentrate the pulp washing operation:
Pulp concentration 4.0～6.0%
Smart pulping process:
23～25 ° of SR of beating degree
Fiber wet weight 3.0～5.0g
The proportioning process that the present invention adopts the steam exploded wheat straw slurry to mix with a small amount of true qualities long fiber pulp on raw material, thus the paper color improved into, improve into the paper physical index.Its wet end furnish (oven dry weight) is:
The quick-fried slurry 50～70% of vapour, best 60%
True qualities long fiber pulp 30～50%, best 40%
The Top wire former operation:
The quick-fried slurry of described vapour mixes with a small amount of true qualities long stuff (the optimised process index is a beating degree 30 ± 2, weight in wet base 5～7) after the essence making beating reaches the technic index of regulation, and paper is manufactured paper with pulp in online, and its Top wire former technological parameter is:
27 ± 3 ° of SR of pulping beating degree
Pulping weight in wet base 4.0～6.0g
Online concentration 0.8～1.0%
Online pH value 6.0～8.0
The press section technological parameter:
Vacuum is inhaled and is moved roller vacuum: 0.05～0.08MPa
Suction press roll vacuum: 0.05～0.08MPa
Precompressed zone line pressure: 50～70KN/m
Top felt moisture absorption case vacuum: 0.02～0.03MPa
Following felt moisture absorption case vacuum: 0.02～0.03MPa
Two press (big roller footpath 1) line pressure: 120～180KN/m
Top felt moisture absorption case vacuum: 0.02～0.03MPa
Three press (big roller footpath 2) line pressure: 150～200KN/m
Top felt moisture absorption case vacuum: 0.02～0.03MPa
Following felt moisture absorption case vacuum: 0.02～0.03MPa
The fluting medium of this explained hereafter can reach the A level, and physical index is as follows:
Quantitative 110g/m
2
Ring crush intensity index 6.5～7.1Nm/g
Fracture length 3.7～4.3km
Tightness 〉=0.5g/cm
3
Moisture 8.0 ± 2%
Claims (10)
1, a kind of low quantitative high-strength corrugated base paper that utilizes steam blasting straw to pulp to produce, it is characterized in that: be raw material with the straw, after rough lumber, carry out steam blasting, in the steam blasting operation, press 0.5～2% adding caustic soda of the oven dry weight of straw raw material, pack in the steam-explosion jar, handled 12～18 minutes under 145～180 ℃ of vapor phase pulping temperature, 0.9～2.0MPa pressure, instant decompression discharges and obtains the quick-fried straw of vapour; Wash then that extraction, thick making beating, screening purify, smart pulping process and make the steam exploded wheat straw slurry; Then the steam exploded wheat straw slurry that makes is mixed with existing true qualities long fiber pulp, its slurry mixing match by over dry total amount percentage is: steam exploded wheat straw slurry over dry total amount: 50～70%, and true qualities long fiber pulp over dry total amount: 30～50%; Then mixed approach flow is shaped, squeezing, dry, batch and make finished product.
2, a kind of low quantitative high-strength corrugated base paper that utilizes steam blasting straw to pulp to produce according to claim 1, it is characterized in that: in described steam blasting operation, press 1～1.5% adding caustic soda of the oven dry weight of straw raw material, pack in the steam-explosion jar, under 150～170 ℃ of vapor phase pulping temperature, handled 3～8 minutes under 0.9Mpa～1.1Mpa pressure earlier, handled 8～11 minutes under 1.4Mpa～1.8Mpa pressure then, instant decompression discharges and obtains the quick-fried straw of vapour.
3, a kind of low quantitative high-strength corrugated base paper that utilizes steam blasting straw to pulp to produce according to claim 2, it is characterized in that: in described steam blasting operation, press 1.5% adding caustic soda of the oven dry weight of straw raw material, pack in the steam-explosion jar, under 150～170 ℃ of vapor phase pulping temperature, handled 5 minutes under 1.0Mpa pressure earlier, handled 10 minutes under 1.6Mpa pressure then, instant decompression discharges and obtains the quick-fried straw of vapour.
4, a kind of low quantitative high-strength corrugated base paper that utilizes steam blasting straw to pulp to produce according to claim 1, it is characterized in that: described steam exploded wheat straw slurry with existing true qualities long fiber pulp mixing match by over dry total amount percentage is: steam exploded wheat straw slurry over dry total amount: 60%, and true qualities long fiber pulp over dry total amount: 40%.
5, a kind of production method of utilizing the low quantitative high-strength corrugated base paper of steam blasting straw to pulp production, it is characterized in that: be raw material with the straw, after rough lumber, carry out steam blasting, in the steam blasting operation, press 0.5～2% adding caustic soda of the oven dry weight of straw raw material, pack in the steam-explosion jar, handled 12～18 minutes under 145～180 ℃ of vapor phase pulping temperature, 0.9～2.0MPa pressure, instant decompression discharges and obtains the quick-fried straw of vapour; Wash then that extraction, thick making beating, screening purify, smart pulping process and make the steam exploded wheat straw slurry; Then the steam exploded wheat straw slurry that makes is mixed with existing true qualities long fiber pulp, its slurry mixing match by over dry total amount percentage is: steam exploded wheat straw slurry over dry total amount: 50～70%, and true qualities long fiber pulp over dry total amount: 30～50%; Then mixed approach flow is shaped, squeezing, dry, batch and make finished product.
6, the production method of utilizing the low quantitative high-strength corrugated base paper of steam blasting straw to pulp production according to claim 5, it is characterized in that: in described steam blasting operation, press 1～1.5% adding caustic soda of the oven dry weight of straw raw material, pack in the steam-explosion jar, under 150～170 ℃ of vapor phase pulping temperature, handled 3～8 minutes under 0.9Mpa～1.1Mpa pressure earlier, handled 8～11 minutes under 1.4Mpa～1.8Mpa pressure then, instant decompression discharges and obtains the quick-fried straw of vapour.
7, the production method of utilizing the low quantitative high-strength corrugated base paper of steam blasting straw to pulp production according to claim 6, it is characterized in that: in described steam blasting operation, press 1.5% adding caustic soda of the oven dry weight of straw raw material, pack in the steam-explosion jar, under 150～170 ℃ of vapor phase pulping temperature, handled 5 minutes under 1.0Mpa pressure earlier, handled 10 minutes under 1.6Mpa pressure then, instant decompression discharges and obtains the quick-fried straw of vapour; Described steam exploded wheat straw slurry with existing true qualities long fiber pulp mixing match by over dry total amount percentage is: steam exploded wheat straw slurry over dry total amount: 60%, and true qualities long fiber pulp over dry total amount: 40%.
8, the production method of utilizing the low quantitative high-strength corrugated base paper of steam blasting straw to pulp production according to claim 5 is characterized in that: in the pulp washing abstraction process:
Press master advances to starch cloth slurry concentration 5.0～10%
Press master pulp concentration 26.0～30.0%
Fiber content 3g/l in the shove liquid.
9, the production method of utilizing the low quantitative high-strength corrugated base paper of steam blasting straw to pulp production according to claim 5 is characterized in that: in the thick pulping process:
18～20 ° of SR of beating degree
Weight in wet base 7.0～8.0g
In the smart pulping process:
23～25 ° of SR of beating degree
Fiber wet weight 3.0～5.0g.
10, the production method of utilizing the low quantitative high-strength corrugated base paper of steam blasting straw to pulp production according to claim 5 is characterized in that: in the Top wire former operation:
27 ± 3 ° of SR of pulping beating degree
Pulping weight in wet base 4.0～6.0g
Online concentration 0.8～1.0%
Online pH value 6.0～8.0.
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| CN101824771B (en) * | 2009-06-13 | 2012-04-04 | 汇鑫生物浆纸股份有限公司 | Production process of high-strength corrugated base paper |
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| CN104313928A (en) * | 2014-08-29 | 2015-01-28 | 济南米铎碳新能源科技有限公司 | Method for efficiently separating hemicellulose from straws |
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