CN109706771A - A kind of method that hot steam collaboration cellulase treatment wheat straw prepares primary colors biological mechanical pulp - Google Patents
A kind of method that hot steam collaboration cellulase treatment wheat straw prepares primary colors biological mechanical pulp Download PDFInfo
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Abstract
This disclosure relates to a kind of method that hot steam collaboration cellulase treatment wheat straw prepares primary colors biological mechanical pulp, using the waste of crops wheat as pulping raw material, Steam treatment wheat straw is steamed using heat, simultaneously plus micro alkali adjusts the pH value of hot water in 10-14, to dissolve out part hemicellulose in wheat straw, lignin, after the substances such as pectin, after the saturation softening of wheat straw decatize hydro-thermal, carry out screw extrusion processing, make wheat straw physics sub-wire, then cellulase treatment is carried out, after cellulase treatment, fiber further softens, then defibrination is carried out to wheat straw, reach the requirement of production primary colors packaging group paper and paper base material.
Description
Technical field
The disclosure belongs to paper technology and field of new materials, and in particular to a kind of hot steam collaboration cellulase treatment wheat straw system
The method of standby primary colors biological mechanical pulp.
Background technique
Here statement only provides background information related with the disclosure, without necessarily constituting the prior art.
Paper industry is important basic raw material industry, and particularly significant status is occupied in national economy.It is sent out with society
Exhibition and social civilization are closely bound up, and the level of consumption of paper and cardboard is to measure the important mark of a modernization of the country and civilization degree
One of will.The problem of traditional paper industry shortage of resources, will further highlight.It solves the problems, such as that paper making raw material is in short supply as early as possible to compel in eyebrow
Eyelash.
It is general only to utilize wheat straw waste but at present in pulping and papermaking processes, and wheat leaf, leaf sheath etc. are removed, Wu Fashi
The complete utilization of existing small wheat harvesting waste.
Summary of the invention
For background technique, the disclosure proposes a kind of biology of whole wheat grass castoff heat steam treatment collaboration cellulase treatment
The preparation process of mechanical pulp, the waste wheat straw after wheat being obtained grain, is received together comprising wheat straw waste, Mai Ye and leaf sheath
Collection, and carry out heat steaming steam collaboration cellulase treatment and prepare primary colors biological mechanical pulp, it is the harvested waste wheat to wheat
Grass carries out a kind of completely new bio-mechanical pulping process of complete utilization.
Specific technical solution is as follows:
In the first aspect of the disclosure, a kind of biological mechanical pulp system of hot water and steam processing collaboration cellulase treatment is provided
Preparation Method, method includes the following steps:
(1) it to obtain the waste wheat straw after wheat grain as raw material, is mixed according to the liquor ratio and wheat straw of 1:3-1:8
It closes, adds micro alkali, so that the aqueous pH value of wheat straw is 10-14, then pass to hot water and steam, hot water and steam treatment process continues
In 15-60min, 100-120 DEG C of vapor (steam) temperature；
(2) wheat straw is carried out extruding sub-wire by hot steam after treatment；
(3) wheat straw after sub-wire is acted on alkaline biological complex enzyme, treatment temperature is 40-60 DEG C, handles the time
For 30-90min；
(4) wheat straw after biological treatment is subjected to defibrination.
In the second aspect of the disclosure, the biological mechanical pulp being prepared using the above method is provided.
In terms of the third of the disclosure, the biological mechanical pulp is provided and is preparing the application in boxboard.
At the 4th aspect of the disclosure, the paper base material being prepared using the biological mechanical pulp is provided.
Compared with the relevant technologies that the present inventor knows, the one of technical solution of the disclosure has following beneficial to effect
Fruit:
The disclosure is raw material using agropyron waste, using biotechnology and mechanical means, is guaranteeing that paper waste follows
Ring utilizes, and in the case where not increasing discharge of wastewater, not causing environmental pollution, has developed excellent biological mechanical pulp preparation side
Method largely solves the problems, such as raw material of papermaking fiber shortage.Meanwhile agricultural wastes obtain high value added utilization, it can
It is effectively docked with agriculture, rural areas and farmers problem, prevents the burning of agricultural waste material from source, realize economic and social benefit bumper harvests.
The disclosure is directed in traditional pulping and papermaking processes, and the wheat leaf in wheat straw removes, only utilizes the practical feelings of wheat straw waste
Condition has been put forward for the first time the complete utilization technology of small wheat harvesting waste for whole wheat waste (wheat straw waste, Mai Ye and leaf sheath),
Propose the new concept of the softening of hot steam saturation, primary colors biological mechanical pulp；It has been put forward for the first time hot steam and has cooperateed with alkaline compound bio
Enzyme prepares the new technology of preparing of high-intensitive primary colors biological mechanical pulp, and the more traditional mechanical pulp of the technology compares, and can save mill
40% or more energy consumption is starched, every physical index has reached the requirement of production wrapping paper and paper base material.Especially in boxboard paper bag
Package material has relatively broad application.
The disclosure is using the waste of crops wheat as pulping raw material, using normal pressure hot steam Steam treatment wheat straw,
Simultaneously plus micro alkali adjusts the aqueous pH value of wheat straw in 10-14, to dissolve out the objects such as part hemicellulose, lignin, pectin in wheat straw
After matter, after heat intermedium vapo(u)rous softening, screw extrusion processing is carried out, makes wheat straw physics sub-wire, then carries out cellulase treatment,
After cellulase treatment, fiber further softens, and then carries out defibrination to wheat straw, reaches production primary colors packaging group paper and paper base material
Requirement.Especially there is relatively broad application in boxboard.
In the preparation process of entire biological mechanical pulp, only with hot steam, micro alkali, alkaline biological complex enzyme, to
The pH value of biological mechanical pulp is close to neutrality when defibrination is completed, and defibrination washing water is handled using multi-effect evaporator, and recycling solid is residual
Slag is burned for boiler, and for hot steam pretreatment section, entire production process is not necessarily to alkali collection, keeps away from source recycling thermal energy
The pollution to environment is exempted from.Whole wheat grass waste prepares biological mechanical pulp, at low cost, pollution-free, and added value is high, while to solve
The problem of agricultural waste material burns provides effective solution approach.The technology meets national resources saving, economic circulation, section
The industrial policy of energy emission reduction.
Specific embodiment
It is noted that described further below be all exemplary, it is intended to provide further instruction to the disclosure.Unless another
It indicates, all technical and scientific terms used herein has usual with disclosure person of an ordinary skill in the technical field
The identical meanings of understanding.
It should be noted that term used herein above is merely to describe specific embodiment, and be not intended to restricted root
According to the illustrative embodiments of the disclosure.As used herein, unless the context clearly indicates otherwise, otherwise singular
Also it is intended to include plural form, additionally, it should be understood that, when in the present specification using term "comprising" and/or " packet
Include " when, indicate existing characteristics, step, operation and/or their combination.
In the disclosure, liquor ratio refers to the cooking liquor ratio of raw material, liquor ratio: boiling over dry raw material weight and the total liquid measure volume of boiling
The ratio between.
In first typical embodiment of the disclosure, a kind of life of hot steam processing collaboration cellulase treatment is provided
Object mechanical pulp preparation method, method includes the following steps:
(1) it to obtain the waste wheat straw after wheat grain as raw material, is mixed according to the liquor ratio and wheat straw of 1:3-1:8
It closes, adds micro alkali, so that the aqueous pH value of wheat straw is 10-14, then pass to hot water and steam, hot water and steam treatment process continues
In 15-60min, 100-120 DEG C of vapor (steam) temperature；
(2) wheat straw is carried out extruding sub-wire by hot steam after treatment；
(3) wheat straw after sub-wire is acted on alkaline biological complex enzyme, treatment temperature is 40-60 DEG C, handles the time
For 30-90min；
(4) wheat straw after biological treatment is subjected to defibrination.
Raw material used in the disclosure is the waste wheat straw obtained after wheat grain, including wheat leaf, stalk and leaf sheath,
In, its chemical composition of different parts and chemical structure difference, in terms of chemical composition, ash content, the alkali extractive of Mai Ye and leaf sheath
All it is higher than stalk position with pentosan content, content of cellulose is far below stalk position；In terms of chemical structure, stalk position
Fiber is longer, and basal part of stem is longer than in the middle part of stem, and the fibrocyte of Mai Ye and leaf sheath is shorter than stalk position and thick.As it can be seen that not
It is very uneven with its raw material mix of wheat straw position and chemical composition and fibre morphology, the subsequent slurries for preparing excellent properties are made
At very big difficulty.In general, in the prior art using the more of careless class stalk papermaking, but pass through the sharp of the applicant
Meaning research, obtains a kind of pulping technique for whole wheat waste, by the pulping technique, can be improved the benefit at each wheat straw position
With rate, the higher paper base material of surface strength is obtained.And the fiber uniformity for the biological mechanical pulp being prepared by the technology
It is good, it is especially suitable for preparing the wrapping papers such as boxboard and paper base material, alternative imported waste paper raw material.
In step (1), waste wheat straw is cut into the standby raw material of 3-6cm long, is air-dried.
In step (1), the liquor ratio is 1:3-1:8 (g/mL), by a large amount of experimental verification and analysis, using the liquid
After a certain time, aqueous pH gradually declines the solution of ratio in wheat straw, so that the pH for the biological mechanical pulp being prepared is in
Neutral or alkalescent.So that the pH for the biological mechanical pulp being prepared is in neutrality.
In step (1), wheat straw is specifically handled using hot steam, so that the fiber of wheat straw is more soft, is passed through
Verification experimental verification can prepare the preferable boxboard of folding strength compared to other methods are used.
In step (1), micro alkali is added, adjusting the aqueous pH value of wheat straw is 10-14, and the purpose of the alkali of addition is: a side
Face can make wheat straw dissolve out the substances such as least a portion of hemicellulose, lignin and pectin, and on the other hand, auxiliary hot steam as soon as possible will
Wheat straw softening does basis for next step screw extrusion.
In step (1), hot steam treatment temperature is 100-120 DEG C, time 15-60min.By verification experimental verification, temperature
If too low, effectively whole wheat grass waste cannot be absorbed water and softened, subsequent sub-wire effect is influenced.Compared with hot water treatment,
The applicant has been surprisingly found that, using hot steam, treated that wheat straw fiber is more soft, and the paper base material being prepared is not only resistance to
Broken index, tear index and ring crush index are higher, and folding resistance is very good, is especially suitable for preparing fluting medium and boxboard
Non- surface layer paper and paper base material.
In step (2), extruding sub-wire is carried out using screw extruder, process conditions are: the compression ratio control of screw extruder
System is in 1:(3-6).
Wheat straw after full water softening such as is sheared in screw extruder, is stretched, reversed and is suppressed at the synthesis of various power
Effect, further such that the hemicellulose in wheat straw dissolves out, fiber is significantly improved by a degree of damage, screw extrusion
The permeance property of the biological enzyme of wheat straw, so that the function and effect of biological enzyme are more preferable, dosage is reduced.By verification experimental verification, will compress
Than controlling in 1:(3-6), smaller on the reduction of fibre length influence, long fiber fraction variation is smaller.
In step (3), liquor ratio is controlled at 1:3-8 (g/mL).
For the specific wheat straw waste materials after extruding, the alkaline biological complex enzyme selected is zytase, fiber
The compound enzyme of three kinds of enzymes of plain enzyme and pectase, total dosage is: 10-80IU/mL, the enzyme of zytase, cellulase and pectase
Ratio living is (3~6): (2~4): (1~1.5), and liquor ratio is controlled at 1:3-8 (g/mL)；Preferably, the total dosage of enzyme is 20~80
IU/mL。
By verification experimental verification, the disclosure is raw using zytase, cellulase and pectase the compounding alkalinity of special ratios
Object complex enzyme, degradation effect is significant, is better than complex enzyme in the prior art.
The biological enzyme of use believes biological enzyme formulation Chinese companies from Shandong Longke Enzyme Co., Ltd., Novi.
In step (4), defibrination number is determined according to production needs, and the beating degree of defibrination is controlled in 25-50 ° of SR.
Refining process condition: high consistency refining, 3000~4000r/ of the speed of mainshaft are carried out using KPF series high concentration plate mill
Min, using one section or two sections of defibrinations, grinding clearance 0.15-0.5mm.
Wheat straw after biological treatment is carried out defibrination with fiberizer, while utilizing the heat and height generated during defibrination
Temperature makes biological enzyme inactivation prevent from influencing the intensity of subsequent paper pulp, according to different selection one section of defibrination or two of pulp freeness
Section defibrination.By verification experimental verification, using above-mentioned beating degree and refining process condition, the biological mechanical pulp when system that is prepared
The standby higher fluting medium of paper strength and the non-surface layer paper of boxboard and paper base material.
In second typical embodiment of the disclosure, the bio-mechanical being prepared using the above method is provided
Slurry.By measurement, the fiber in the biological mechanical pulp is staggeredly uniform, fiber softening, fibre length than more uniform, paper strength compared with
It is good.It is verified by subsequent experimental, paper base material burst index, tear index and ring crush index prepared by this kind of biological mechanical pulp is equal
It is higher, it is suitble to prepare boxboard.
In the typical embodiment of third of the disclosure, the biological mechanical pulp is provided in preparing boxboard
Using.
In the 4th typical embodiment of the disclosure, the paper base material that the biological mechanical pulp is prepared is provided
Material, the paper base material are boxboard.Mainly corrugated case is made with after corrugating media bonding in boxboard, for packing household electric
Device, household items, needle cotton fabric, cultural goods, outer packing of Chinese and Western patent medicine etc..The disclosure is prepared using above-mentioned biological mechanical pulp
Obtained boxboard burst index, tear index and ring crush index is higher, and folding resistance is good.
In order to enable those skilled in the art can clearly understand the technical solution of the disclosure, below with reference to tool
The technical solution of the disclosure is described in detail in the embodiment of body.
Embodiment 1
A kind of method that hot steam collaboration cellulase treatment wheat straw prepares primary colors biological mechanical pulp, the case study on implementation prepare wheat
Grassland colour biological mechanical pulp, and test it and prepare slurry performance.
(1) the air-dried wheat straw after physics being selected dedusting is cut into the standby raw material of 5cm long, is put into wheat straw processor or reaction
In kettle, wheat straw is mixed according to the liquor ratio of 1:5 (g/mL), to being added in mixture micro alkali (NaOH or KOH), is adjusted
The aqueous pH value of wheat straw is 14.
(2) it is passed through hot water and steam, 110 DEG C of temperature, time 20min makes to dissolve out least a portion of hemicellulose, lignin in wheat straw
With the substances such as pectin, soften heat intermedium saturated water, softens wheat straw aqueous pH value when processing terminate 8.
(3) hot steam satisfy water softening wheat straw squeezed on screw extruder, adjust the pressure of extruder, make wheat
Grass reaches uniform good sub-wire effect.The saturation softening sub-wire of wheat straw is preferable, is once squeezed；The compression of screw extruder
Than controlling in 1:4.
(4) wheat straw and alkaline biological enzyme after softening sub-wire handle 50min in biological processor or bioreactor, temperature
At 50 DEG C, liquor ratio control is stirred continuously mixing wheat straw, acts on wheat straw sufficiently with biological enzyme, into one at 1:6 (g/mL) for degree control
Step softening wheat straw fiber.
The alkalinity biological complex enzyme is for the compound enzyme of three kinds of zytase, cellulase and pectase enzymes, total dosage
It is 60IU/mL (1ml feed liquid uses 60IU biological enzyme), the enzyme activity ratio of zytase, cellulase and pectase is 5:3:
1。
(5) wheat straw after biological treatment is carried out two sections of defibrinations with fiberizer, pulp freeness is made to reach 42 ° of SR.
The technological parameter of the defibrination are as follows: using KPF high concentration plate mill carry out high consistency refining, speed of mainshaft 3000r/min,
Grinding clearance is 0.25mm.
(6) mix it uniformly discongesting device through fiber and discongest the good wheat straw biological mechanical pulp of defibrination, then in page
It is copied on former and type 120g/m is made2Boxboard.Then its physical strength is measured.It is former that every physical index has reached production
The requirement of color wrapping paper and paper base material.
(7) biological enzyme after screw extrusion is adjusted to the compound enzyme using two kinds of enzymes of zytase and pectase, it is total to use
Amount is 60IU/mL, and the enzyme activity ratio of zytase and pectase is 5:1, other techniques are constant to be tested as a comparison, the life of acquisition
Object mechanical pulp sample 1 as a comparison.
Comparative sample 2: step (1) and (2) are replaced are as follows: the air-dried wheat straw after physics being selected dedusting is cut into the standby of 5cm long
It with raw material, is put into normal-temperature reaction kettle, hot water treatment is carried out to wheat straw according to the liquor ratio of 1:5 (g/mL), temperature is at 90 DEG C, processing
Time controls in 20min.To micro alkali KOH is added in the hot water and wheat straw mixture in reaction kettle, the pH value of hot water is adjusted
13, make to dissolve out the substances such as least a portion of hemicellulose, lignin and pectin in wheat straw, while wheat straw satisfies water softening, locate
The aqueous pH value of wheat straw reaches 8 when reason terminates.
Other steps such as embodiment 1.
The physical performance index that is slurried that a kind of wheat straw hot steam of table 1 collaboration cellulase treatment prepares biological mechanical pulp compares one
Look at table
Embodiment 2
A kind of method that hot steam collaboration cellulase treatment wheat straw prepares primary colors biological mechanical pulp, the case study on implementation prepare wheat
Grassland colour biological mechanical pulp, and test it and prepare slurry performance.
(1) the air-dried wheat straw after physics being selected dedusting is cut into the standby raw material of 4cm long, is put into wheat straw processor or reaction
In kettle, wheat straw is mixed according to the liquor ratio of 1:4 (g/mL), to being added in mixture micro alkali (NaOH or KOH), is adjusted
The aqueous pH value of wheat straw is 14.
(2) it is passed through hot water and steam, 100 DEG C of temperature, time 30min makes to dissolve out least a portion of hemicellulose, lignin in wheat straw
With the substances such as pectin, soften heat intermedium saturated water, softens wheat straw aqueous pH value when processing terminate 9.
(3) wheat straw the full water softening of heat is squeezed on screw extruder, is adjusted the pressure of extruder, is reached wheat straw
To uniform good sub-wire effect.The saturation softening sub-wire of wheat straw is preferable, is once squeezed；The compression ratio control of screw extruder
System is in 1:3.
(4) wheat straw and alkaline biological enzyme after softening sub-wire handle 60min in biological processor or bioreactor, temperature
At 55 DEG C, liquor ratio control is stirred continuously mixing wheat straw, acts on wheat straw sufficiently with biological enzyme, into one at 1:5 (g/mL) for degree control
Step softening wheat straw fiber.
The alkalinity biological complex enzyme is for the compound enzyme of three kinds of zytase, cellulase and pectase enzymes, total dosage
It is 80IU/mL, the enzyme activity ratio of zytase, cellulase and pectase is 5:3:1.5.
(5) wheat straw after biological treatment is carried out two sections of defibrinations with fiberizer, pulp freeness is made to reach 45 ° of SR.
The technological parameter of the defibrination are as follows: using KPF high concentration plate mill carry out high consistency refining, speed of mainshaft 3000r/min,
Grinding clearance is 0.25mm.
(6) mix it uniformly discongesting device through fiber and discongest the good wheat straw biological mechanical pulp of defibrination, then in page
It is copied on former and type 80g/m is made2Primary colors boxboard.Then its physical strength is measured.Every physical index has reached life
Produce the requirement of primary colors wrapping paper and paper base material.
(7) biological enzyme after screw extrusion is adjusted to answering using zytase, cellulase and three kinds of enzymes of pectase
With enzyme, total dosage is 60IU/mL, and the enzyme activity ratio of zytase, cellulase and pectase is 1:1:1, other techniques are constant
It tests as a comparison, the biological mechanical pulp of acquisition sample 1 as a comparison.
Comparative sample 2: step (1) and (2) are replaced are as follows: the air-dried wheat straw after physics being selected dedusting is cut into the standby of 4cm long
It with raw material, is put into normal-temperature reaction kettle, hot water treatment is carried out to wheat straw according to the liquor ratio of 1:4 (g/mL), temperature is at 100 DEG C, place
Time control is managed in 30min.To micro alkali KOH is added in the hot water and wheat straw mixture in reaction kettle, the pH of hot water is adjusted
Value makes to dissolve out the substances such as least a portion of hemicellulose, lignin and pectin in wheat straw 14, while wheat straw satisfies water softening,
The aqueous pH value of wheat straw reaches 9 when processing terminate.
Other steps such as embodiment 2.
The physical performance index that is slurried that a kind of wheat straw hot steam of table 2 collaboration cellulase treatment prepares biological mechanical pulp compares one
Look at table
Embodiment 3
A kind of method that hot steam collaboration cellulase treatment wheat straw prepares primary colors biological mechanical pulp, the embodiment prepare wheat straw
Primary colors biological mechanical pulp, and test it and prepare slurry performance.
(1) the air-dried wheat straw after physics being selected dedusting is cut into the standby raw material of 6cm long, is put into wheat straw processor or reaction
In kettle, wheat straw is mixed according to the liquor ratio of 1:6 (g/mL), to being added in mixture micro alkali (NaOH or KOH), is adjusted
The aqueous pH value of wheat straw is 13.
(2) it is passed through hot water and steam, 110 DEG C of temperature, time 20min makes to dissolve out least a portion of hemicellulose, lignin in wheat straw
With the substances such as pectin, soften heat intermedium saturated water, softens wheat straw aqueous pH value when processing terminate 8.
(3) wheat straw the full water softening of heat is squeezed on screw extruder, is adjusted the pressure of extruder, is reached wheat straw
To uniform good sub-wire effect.The saturation softening sub-wire of wheat straw is preferable, is once squeezed；The compression ratio control of screw extruder
System is in 1:4.
(4) wheat straw and alkaline biological enzyme after softening sub-wire handle 90min in biological processor or bioreactor, temperature
At 50 DEG C, liquor ratio control is stirred continuously mixing wheat straw, acts on wheat straw sufficiently with biological enzyme, into one at 1:5 (g/mL) for degree control
Step softening wheat straw fiber.
The alkalinity biological complex enzyme is for the compound enzyme of three kinds of zytase, cellulase and pectase enzymes, total dosage
It is 40IU/mL, the enzyme activity ratio of zytase, cellulase and pectase is 6:4:1.
(5) wheat straw after biological treatment is carried out two sections of defibrinations with fiberizer, pulp freeness is made to reach 38 ° of SR.
The technological parameter of the defibrination are as follows: using KPF high concentration plate mill carry out high consistency refining, speed of mainshaft 3000r/min,
Grinding clearance is 0.15mm.
(6) mix it uniformly discongesting device through fiber and discongest the good wheat straw biological mechanical pulp of defibrination, then in page
It is copied on former and type 60g/m is made2Primary colors boxboard.Then its physical strength is measured.Every physical index has reached life
Produce the requirement of primary colors wrapping paper and paper base material.
(7) the cellulase treatment section after screw press to be removed, other techniques are constant to be used as blank sample to compare test,
The mechanical pulp of acquisition sample 1 as a comparison.
Comparative sample 2: step (1) and (2) are replaced are as follows: the air-dried wheat straw after physics being selected dedusting is cut into the standby of 6cm long
It with raw material, is put into normal-temperature reaction kettle, hot water treatment is carried out to wheat straw according to the liquor ratio of 1:6 (g/mL), temperature is at 90 DEG C, processing
Time controls in 20min.To micro alkali KOH is added in the hot water and wheat straw mixture in reaction kettle, the pH value of hot water is adjusted
13, make to dissolve out the substances such as least a portion of hemicellulose, lignin and pectin in wheat straw, while wheat straw satisfies water softening, locate
The aqueous pH value of wheat straw reaches 8 when reason terminates.
Other steps such as embodiment 3.
The physical performance index that is slurried that a kind of wheat straw hot steam of table 3 collaboration cellulase treatment prepares biological mechanical pulp compares one
Look at table
Above-described embodiment is the preferable embodiment of the disclosure, but embodiment of the present disclosure is not by above-described embodiment
It limits, made changes, modifications, substitutions, combinations, simplifications under other any spiritual essence and principles without departing from the disclosure,
It should be equivalent substitute mode, be included within the protection scope of the disclosure.
Claims (10)
1. a kind of biological mechanical pulp preparation method of hot steam processing collaboration cellulase treatment, characterized in that this method include with
Lower step:
(1) it to obtain the waste wheat straw after wheat grain as raw material, is mixed, is added with wheat straw according to the liquor ratio of 1:3-1:8
Add alkali, so that the aqueous pH value of wheat straw is 10-14, then passes to hot water and steam, hot water and steam treatment process continues in 15-
60min, 100-120 DEG C of vapor (steam) temperature；
(2) wheat straw is carried out extruding sub-wire by hot steam after treatment；
(3) wheat straw after sub-wire is acted on alkaline biological complex enzyme, treatment temperature is 40-60 DEG C, and the processing time is 30-
90min；
(4) wheat straw after biological treatment is subjected to defibrination.
2. preparation method as described in claim 1, characterized in that in step (1), waste wheat straw is cut into 3-6cm's long
Standby raw material air-dries.
3. preparation method as described in claim 1, characterized in that in step (1), the pH value of wheat straw when processing terminate
Reach 7-9.
4. preparation method as described in claim 1, characterized in that in step (2), squeeze using screw extruder and divide
Silk, process conditions are: the compression ratio of screw extruder is controlled in 1:(3-6).
5. preparation method as described in claim 1, characterized in that in step (3), alkaline biological complex enzyme be zytase,
The compound enzyme of three kinds of enzymes of cellulase and pectase, total dosage is: 10-80IU/mL, zytase, cellulase and pectase
Enzyme activity ratio be (3~6): (2~4): (1~1.5)；Preferably, the total dosage of enzyme is 20~80IU/mL.
6. preparation method as described in claim 1, characterized in that in step (4), defibrination number is determined according to production needs,
The beating degree of defibrination is controlled in 25-50 ° of SR.
7. preparation method as described in claim 1, characterized in that in step (4), refining process condition: high using KPF series
Dense disc mill carries out high consistency refining, and 3000~4000r/min of the speed of mainshaft is using one section or two sections of defibrinations, grinding clearance
0.15-0.5mm。
8. the biological mechanical pulp being prepared using method according to any one of claims 1 to 7.
9. biological mechanical pulp according to any one of claims 8 is preparing the application in boxboard.
10. the paper base material being prepared using biological mechanical pulp according to any one of claims 8, characterized in that the paper base material
For boxboard.
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112160180A (en) * | 2020-09-15 | 2021-01-01 | 内蒙古林乐生物能源有限责任公司 | Production process of biochemical mechanical pulp |
| CN112853793A (en) * | 2020-12-31 | 2021-05-28 | 齐鲁工业大学 | Method for preparing primary-color biomechanical pulp by treating wheat straws with hot steam and biological enzyme and fully utilizing byproducts |
| CN114837007A (en) * | 2022-06-01 | 2022-08-02 | 齐鲁工业大学 | Method for pulping wheat straw by using composite microbial inoculum |
| CN114921992A (en) * | 2022-06-01 | 2022-08-19 | 齐鲁工业大学 | Preparation method of bio-enzyme treated bio-mechanical pulp |
| CN116427198A (en) * | 2023-04-10 | 2023-07-14 | 齐鲁工业大学(山东省科学院) | Wheat straw pulping method based on cellulase treatment technology |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1681992A (en) * | 2002-09-06 | 2005-10-12 | 斯托拉恩索公司 | Method of producing mechanical pulp and the mechanical pulp thus produced |
| CN103555702A (en) * | 2013-10-19 | 2014-02-05 | 沅江浣溪沙酶技术有限公司 | Production method and application of complex enzyme liquid for chemi-mechanical pulping |
| CN105780568A (en) * | 2016-04-23 | 2016-07-20 | 李树泉 | Pulp making technology through performing biological enzyme softening lignin removal twice combined with mechanical method |
| WO2018051275A2 (en) * | 2016-09-16 | 2018-03-22 | Basf Se | Methods of modifying pulp comprising cellulase enzymes and products thereof |
-
2018
- 2018-12-29 CN CN201811640587.7A patent/CN109706771B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1681992A (en) * | 2002-09-06 | 2005-10-12 | 斯托拉恩索公司 | Method of producing mechanical pulp and the mechanical pulp thus produced |
| CN103555702A (en) * | 2013-10-19 | 2014-02-05 | 沅江浣溪沙酶技术有限公司 | Production method and application of complex enzyme liquid for chemi-mechanical pulping |
| CN105780568A (en) * | 2016-04-23 | 2016-07-20 | 李树泉 | Pulp making technology through performing biological enzyme softening lignin removal twice combined with mechanical method |
| WO2018051275A2 (en) * | 2016-09-16 | 2018-03-22 | Basf Se | Methods of modifying pulp comprising cellulase enzymes and products thereof |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112160180A (en) * | 2020-09-15 | 2021-01-01 | 内蒙古林乐生物能源有限责任公司 | Production process of biochemical mechanical pulp |
| CN112853793A (en) * | 2020-12-31 | 2021-05-28 | 齐鲁工业大学 | Method for preparing primary-color biomechanical pulp by treating wheat straws with hot steam and biological enzyme and fully utilizing byproducts |
| CN114837007A (en) * | 2022-06-01 | 2022-08-02 | 齐鲁工业大学 | Method for pulping wheat straw by using composite microbial inoculum |
| CN114921992A (en) * | 2022-06-01 | 2022-08-19 | 齐鲁工业大学 | Preparation method of bio-enzyme treated bio-mechanical pulp |
| CN116427198A (en) * | 2023-04-10 | 2023-07-14 | 齐鲁工业大学(山东省科学院) | Wheat straw pulping method based on cellulase treatment technology |
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