CN104452398B - The energy-conservation enhancing grinding method of slow stock is produced in a kind of compound pre-treatment - Google Patents
The energy-conservation enhancing grinding method of slow stock is produced in a kind of compound pre-treatment Download PDFInfo
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- CN104452398B CN104452398B CN201410582212.5A CN201410582212A CN104452398B CN 104452398 B CN104452398 B CN 104452398B CN 201410582212 A CN201410582212 A CN 201410582212A CN 104452398 B CN104452398 B CN 104452398B
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- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21D—TREATMENT OF THE MATERIALS BEFORE PASSING TO THE PAPER-MAKING MACHINE
- D21D1/00—Methods of beating or refining; Beaters of the Hollander type
- D21D1/20—Methods of refining
- D21D1/30—Disc mills
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- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
- D21H17/005—Microorganisms or enzymes
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
- D21H17/20—Macromolecular organic compounds
- D21H17/21—Macromolecular organic compounds of natural origin; Derivatives thereof
- D21H17/24—Polysaccharides
- D21H17/25—Cellulose
- D21H17/26—Ethers thereof
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
- D21H17/63—Inorganic compounds
- D21H17/64—Alkaline compounds
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Abstract
The present invention discloses the energy-conservation enhancing grinding method that slow stock is produced in a kind of compound pre-treatment, and step is as follows: paper pulp fiber is dissolved in water by (1), discongests evenly, then carries out pre-treatment; (2) adding cellulase treatment in the paper pulp after process, biological enzyme consumption is 10-60IU/g, temperature 40-60 DEG C, pH=6-9, pulp density 3-8wt%, process 10-30min; (3) slurry in step (2) is carried out continous way mill making beating, store for subsequent use. The method of the present invention significantly improves the efficiency of follow-up cellulase treatment, overcome enzyme processing time in biological enzyme auxiliary mill slurry production excessively long, the mill energy-conservation shortcoming becoming paper physical strength not take into account with fiber of slurry, having saved the refining energy consumption producing slow stock and mill slurry time, wherein chemical bleaching needle slurry, needlebush reducing rules save refining energy consumption 15%-45%; And the physical properties of paper of paper pulp fiber can be improved.
Description
Technical field
The invention belongs to Pulp and Paper Engineering energy-saving clean production field, relate to the energy-conservation enhancing grinding method that slow stock is produced in a kind of compound pre-treatment, it is the energy-conservation mill slurry technology of a kind of pre-treatment+cellulase treatment, by one or more pretreatment modes to improve the efficiency of follow-up cellulase treatment, reduce the cellulase treatment time, there is the two-fold advantage saved refining energy consumption and become the physicals of paper with raising paper pulp, it is specially adapted to the mill slurry of slow stock.
Background technology
At present, paper industry is just facing from " high flow rate, high energy consumption, high pollution " to the transition of " less energy-consumption, low water consumption, low stain ". Compared with general abiotic catalyzer, enzyme has the features such as mildness, specificity, high efficiency, adjustability and the feature of environmental protection, the every field being widely used in pulp and paper industry, is mainly used at present mainly for the treatment of deinking, the cleaning promoting bleaching, auxiliary mill slurry, slime and deposit control, wet portion and size press portion, starch conversion, sewage disposal discharge etc.
Making beating is exactly make paper pulp fiber produce to extrude by the effect of physical mechanical, be out of shape, cut off, moisten a series of effects such as swollen, fibrillation. The result of making beating makes fiber bend, distorts, curling, tear, conquassation and cut-out. Becoming pulp fibres all to there occurs significant change at fibrous property or water filtering performance, on paper machine production process, the quality index of paper all has decisive impact with becoming in these changes.
Ultrasonic wave is a kind of elastic mechanical ripple in material medium. Ultrasonic wave forms the mechanical vibration of insulating particles in material medium, and the mechanical effect that this kind causes in submicroscopic scope containing the ultrasonic vibration of energy has: mechanical mass transfer effect, add heat effect and cavatition. Mechanical effect and activating effect can be produced due to hyperacoustic cavatition, therefore adopt ultrasound-assisted enzymolysis, enzymolysis time can be shortened dramatically, it is to increase enzymolysis efficiency.
Enzymatic beating is exactly use biological enzyme pretreatment slurry under certain condition, can by degraded LCC layer, P layer, the lignin of S layer, hemicellulose, and promote that cellulose crystallite district transforms to Mierocrystalline cellulose pars amorpha, the water suction profit of final promotion fiber is swollen and fibrillation degree, beatability is improved, plays reduction refining energy consumption; Meanwhile, cellulase treatment can improve the quantity forming hydrogen bonded between fiber, improves the physical strength that fiber becomes paper.
Existing biology making beating enzyme has started industrialization, and energy-conservation at mill slurry, improve physical properties of paper, alleviate mill slurry COD of sewage, BOD loading and improve the field such as reusing rate and achieve significant effect. But also there are some problems, such as cellulase treatment efficiency is lower, treatment time length is not suitable for the high-speed continuous production of present papermaking; The physicochemical environment of biological enzyme effect is narrower, and fluctuation is big; Biological enzyme can be degraded the Mierocrystalline cellulose of paper pulp fiber and hemicellulose, is lowered into the physical strength etc. of paper. Therefore, the present invention discloses the energy-conservation enhancing grinding method that slow stock is produced in a kind of compound pre-treatment, by the compound pre-treatment of paper pulp fiber, improve physical aspect and the chemical structure of paper pulp fiber, for follow-up cellulase treatment provides excellent physical and chemical factor, overcoming the restriction of the treatment time length in the auxiliary refining process of biological enzyme, physicochemical environment harshness, refining energy consumption reduces, fiber physical properties of paper improves, and the mill slurry being widely used in slow stock is produced.
Summary of the invention
The object of the invention is that the treatment time overcome in the auxiliary refining process of biological enzyme is long, physicochemical environment is harsh, Mierocrystalline cellulose or the easy bio-enzyme degradation of half fiber, the weakness becoming paper physical strength low, by adopting pre-treatment+ferment treatment+mill slurry, or pre-treatment/ferment treatment/mill slurry mode, particularly adopt the default pretreatment mode of ultrasonic wave or sodium hydroxide or tensio-active agent, provide the energy-conservation enhancing grinding method that slow stock is produced in a kind of compound pre-treatment, the paper pulp fiber of raising provided by the invention belongs to slow stock, tissue paper can be widely used in, oil-proof paper, condenser paper, cigarette tissue, tissue paper, bank-note paper, false proof paper, in the industrial papers such as passport paper.
In order to realize above-mentioned purpose, the present invention adopts following technical scheme to realize:
The concrete steps of the energy-conservation enhancing grinding method that slow stock is produced in the compound pre-treatment of the present invention are as follows:
(1) paper pulp fiber is dissolved in water, discongests evenly, then carry out pre-treatment;
(2) adding cellulase treatment in the paper pulp after process, biological enzyme consumption is 10-60IU/g, temperature 40-60 DEG C, pH=6-9, pulp density 3-8wt%, process 10-30min;
(3) slurry in step (2) is carried out continous way mill making beating, store for subsequent use.
In step (1), described paper pulp fiber is plant paper pulp fiber, chemical pulp, semi-chemical pulp, high yield pulp or paper waste.
In step (1), pre-treatment is the individual curing adopting ultrasonic wave or sodium hydroxide or tensio-active agent, or the subsequent treatment of both or three arbitrarily, or process while both or three arbitrarily.
The concrete grammar of ultrasonic pretreatment is: be dissolved in water by paper pulp fiber, discongest evenly, pulp density is 3-8wt%, pH=6-9, is placed in ultrasonic oscillator (or ultrasonic wave shake plate) by temperature 20-50 DEG C, ultrasonic power 40-4000W, ultrasonic frequency is 40-400kHz, stir process, and the treatment time is 5-20min.
The concrete grammar of NaOH pretreatment is: be dissolved in water by paper pulp fiber, discongest evenly, pulp density is 3-8wt%, temperature 20-50 DEG C, add the aqueous sodium hydroxide solution of 0.2-1wt%, stir process, treatment time is 10-30min, washing, after pre-treatment, alkali lye is by extruding recycling, repeats reclamation rate >=80%.
The pretreated concrete grammar of tensio-active agent is: be dissolved in water by paper pulp fiber, discongests evenly, and pulp density is 3-8wt%, pH=6-9, temperature 20-50 DEG C, adds tensio-active agent 0.05-0.5wt%, stir process 10-30min; Tensio-active agent is carboxymethyl cellulose, one or more in cationic starch or alkylbenzene sulfonate, preferred surfactant is, carboxymethyl cellulose: cationic starch: alkylbenzene sulfonate weight ratio=1:(0.5-2): (0��1).
In step (2), biological enzyme is one or more in neutral xylanase, cellulase, carboxymethylcelluloenzyme enzyme, laccase or manganese peroxidase.
In step (3), during mill making beating adopts, low dense mill is pulled an oar, and refining concentration is 3-8wt%; Adopt the multistage production technique in proper order of pre-treatment+cellulase treatment+mill slurry, or adopt the synchronous production technique of pre-treatment/cellulase treatment/mill slurry, or the treatment process in proper order of mill slurry+pre-treatment+cellulase treatment+mill slurry, or the production in series technique of mill slurry+pre-treatment/cellulase treatment/mill slurry; The beating degree of mill disposed slurry is 50-75 �� of SR, belongs to slow stock.
Compared with mill slurry production technology auxiliary with existing biological enzyme, it is an advantage of the invention that the compound pre-treatment by paper pulp fiber, improve physical aspect and the chemical structure of paper pulp fiber, for follow-up cellulase treatment provides excellent physical and chemical factor, overcome the treatment time in the auxiliary refining process of biological enzyme long, the restriction of physicochemical environment harshness, cellulase treatment time��30min, or biological enzyme directly applies in continous way mill slurry production, the refining energy consumption producing slow stock and mill slurry time are saved, wherein chemical bleaching needle slurry, needlebush reducing rules saves refining energy consumption 15%-45%, and the physical properties of paper of paper pulp fiber can be improved. refining energy consumption reduces, and fiber physical properties of paper improves, and the mill slurry being widely used in slow stock is produced, and the paper pulp of production can be applicable in the industrial papers such as tissue paper, oil-proof paper, condenser paper, cigarette tissue, tissue paper, bank-note paper, false proof paper, passport paper.
Accompanying drawing explanation
Fig. 1 is the process flow sheet of the energy-conservation enhancing grinding method of the compound pre-treatment production slow stock of the present invention.
Embodiment
Below by specific embodiment, the present invention will be further elaborated; but not limiting the scope of the invention; on the basis of the technical scheme of the present invention, those skilled in the art do not need to pay various amendment or distortion that creative work can make still within protection scope of the present invention.
Embodiment 1:
Paper pulp fiber is dissolved in water, it is placed in ultrasonic oscillator, stir process: macrofiber KP bleached pulp concentration is 4.2%, pH=7.7, temperature 23 DEG C, ultrasonic power 250W, ultrasonic frequency is 40kHz, and the treatment time is that process disposed slurry is added cellulose complex enzyme 30IU/g by 5min, temperature 40 DEG C, pH=6.5, starches dense 4.2%, process 30min; PFI mill slurry is to 71 �� of SR. Paper pulp energy consumption saves 32%, and tensile index increases by 15%.
Embodiment 2:
Paper pulp fiber is dissolved in water, adds aqueous sodium hydroxide solution pre-treatment: macrofiber KP bleached pulp concentration is 6%, and sodium hydroxide concentration is 0.5%, temperature 35 DEG C, and the treatment time is 10min; Process disposed slurry being added cellulose complex enzyme 30IU/g, temperature 40 DEG C, pH=6.5, starches dense 4.3%, process 30min; PFI mill slurry is to 70 �� of SR. Paper pulp energy consumption saves 28%, and tensile index increases by 5%.
Embodiment 3:
Paper pulp fiber is dissolved in water, adds tensio-active agent pre-treatment: macrofiber KP bleached pulp concentration is 6%, pH=7.2, temperature 25 DEG C, dosage of surfactant 0.15%, stir process 15min; Tensio-active agent is, carboxymethyl cellulose: cationic starch: Sodium dodecylbenzene sulfonate=1:1:0.2; Process disposed slurry being added cellulose complex enzyme 30IU/g, temperature 40 DEG C, pH=6.5, starches dense 4.3%, process 30min; PFI mill slurry is to 68 �� of SR. Paper pulp energy consumption saves 17%, and tensile index increases by 16%.
Embodiment 4-8:
Its process mill slurry process of embodiment 2-8 with embodiment 1,2,3, the consumption of selected pulpwood, pretreatment mode mill slurry mode, biological enzyme and kind, and embodiment the performance test results is in table 1.
Energy-conservation refining process and the test result strengthening mill slurry of table 1
The performance test results is in table 1, as can be seen from the experimental result of table 1, the energy-conservation enhancing grinding method of slow stock is produced in the present invention's a kind of compound pre-treatment, adopt the default combination pretreatment mode of ultrasonic wave or sodium hydroxide or tensio-active agent, for follow-up cellulase treatment provides excellent physical and chemical factor, give the good mill slurry performance of paper pulp and become paper tensile strength.
Performance test is tested
Performance test 1: bioenzyme activity
In the world the definition of a biological enzyme unit (IU) is referred to the biological enzyme quantity needed for every minute generation 1mmol product. The enzyme measuring cellulase by China National Light Industrial Products Department's industry standard " QB2583-2005 cellulase preparation " is lived, and the enzyme measuring zytase by national standard " GB/T23874-2009 Xylanase activity measuring method " is lived.
Manganese peroxidase enzyme assay: take methyl catechol as substrate, under manganese peroxidase and Mn2+ effect, methyl catechol is oxidized to four O-methoxies and connects phenol, can measure the formation that color products four O-methoxy connects phenol at 465nm place. Reaction conditions is: Na-succinate buffer or Sodium.alpha.-hydroxypropionate damping fluid, pH4.0��4.5,0.2mmol/LMnSO4, 0.1mmol/LH2O2, 0.4mmol/L methyl catechol, mensuration wavelength is 465nm.
The mensuration of laccase activity: ABTS (2,2-joins nitrogen-two (3-ethyl-benzothiazole-6-sulfonic acid) di-ammonium salts) is substrate mensuration laccase activity. Reaction conditions is: 0.1mmol/L sodium-acetate buffer (pH5.0) 2ml of 0.5mmol/LABTS, starts reaction after adding 1ml enzyme liquid, surveys the absorbancy change of ��=420nm place, and ABTSization product is at the ��=36000dm at 420nm place3M-1/ cm, 1 enzyme activity unit ABTS of every minute 1 ��m of ol is converted required enzyme amount.
Performance test 2: beating degree
The mensuration of Xiao's Bai Shi beating degree, see standard GB/T/T3332-1982. Get the slurry being equivalent to 2g oven dry stock, pour into and measure in graduated cylinder, add clear water and be diluted to 1000ml, stir with glass stick, rotate handwheel in the counterclockwise direction, put taper and be placed on off-position. Fall slurry in water-filtering cartridge thereupon. Start handwheel, mention conical lid, by the filtered water of copper net, flow out by bottom outlet and lateral flow tubes respectively via separate chamber. After lateral flow tubes stopping is dripped, making beating angle value can be read from special graduated cylinder.
Performance test 3: energy efficient
Wherein, A, represents through pretreated paper pulp fiber, and the auxiliary PFI mill slurry of enzyme is to the electricity consumption of 70 �� 2 �� of SR, and kw h, B, represent not pretreated blank sheet pulp fibres PFI and grind the electricity consumption of slurry to 70 �� 2 �� of SR, kw h;
Performance test 4: tensile index
Tensile index adopts tensile strength instrument to measure, according to standard GB/T/T453-1989.
Compared to the shortcoming and defect of prior art, the present invention has following useful effect: by the compound pre-treatment of paper pulp fiber, improve physical aspect and the chemical structure of paper pulp fiber, for follow-up cellulase treatment provides excellent physical and chemical factor, overcome the treatment time in the auxiliary refining process of biological enzyme long, the restriction of physicochemical environment harshness, achieve the dual raising of energy-conservation mill slurry and physical properties of paper raising, the cellulase treatment time is short, can be applicable to the continuous mill of slow stock slurry produce, the paper pulp produced can be applicable to tissue paper, oil-proof paper, condenser paper, cigarette tissue, tissue paper, bank-note paper, false proof paper, in the industrial papers such as passport paper.
Although it has been shown and described that embodiments of the invention, for the ordinary skill in the art, be appreciated that and these embodiments can be carried out multiple change, amendment, replacement and modification without departing from the principles and spirit of the present invention, the scope of the present invention by claims and etc. jljl limit.
Claims (4)
1. the energy-conservation enhancing grinding method of a compound pre-treatment production slow stock, it is characterised in that:
The concrete steps of described method are as follows:
(1) being dissolved in water by paper pulp fiber, discongest evenly, then carry out pre-treatment, pre-treatment is the individual curing adopting ultrasonic wave or tensio-active agent, or both process in proper order, or processes while both;
The concrete grammar of ultrasonic pretreatment is: be dissolved in water by paper pulp fiber, discongest evenly, pulp density is 3-8wt%, pH=6-9, is placed in ultrasonic oscillator or ultrasonic wave shake plate by temperature 20-50 DEG C, ultrasonic power 40-4000W, ultrasonic frequency is 40-400kHz, stir process, and the treatment time is 5-20min;
The pretreated concrete grammar of tensio-active agent is: be dissolved in water by paper pulp fiber, discongests evenly, and pulp density is 3-8wt%, pH=6-9, temperature 20-50 DEG C, adds tensio-active agent 0.05-0.5wt%, stir process 10-30min; Tensio-active agent is one or more in carboxymethyl cellulose, cationic starch or alkylbenzene sulfonate;
(2) adding cellulase treatment in the paper pulp after process, biological enzyme consumption is 10-60IU/g, temperature 40-60 DEG C, pH=6-9, pulp density 3-8wt%, process 10-30min;
(3) slurry in step (2) is carried out continous way mill making beating, store for subsequent use.
2. the energy-conservation enhancing grinding method of slow stock is produced in compound pre-treatment as claimed in claim 1, it is characterised in that: in step (1), described paper pulp fiber is plant paper pulp fiber, chemical pulp, semi-chemical pulp, high yield pulp or paper waste.
3. the energy-conservation enhancing grinding method of slow stock is produced in compound pre-treatment as claimed in claim 1, it is characterized in that: in step (2), biological enzyme is one or more in neutral xylanase, cellulase, carboxymethylcelluloenzyme enzyme, laccase or manganese peroxidase.
4. the energy-conservation enhancing grinding method of slow stock is produced in compound pre-treatment as claimed in claim 1, it is characterised in that: in step (3), during mill making beating adopts, low dense mill is pulled an oar, and refining concentration is 3-8wt%; Adopt the multistage production technique in proper order of pre-treatment+cellulase treatment+mill slurry, or adopt the synchronous production technique of pre-treatment/cellulase treatment/mill slurry, or the treatment process in proper order of mill slurry+pre-treatment+cellulase treatment+mill slurry, or the production technique in proper order of mill slurry+pre-treatment/cellulase treatment/mill slurry; The beating degree of mill disposed slurry is 50-75 �� of SR, belongs to slow stock.
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH073683A (en) * | 1993-06-16 | 1995-01-06 | Mitsubishi Gas Chem Co Inc | Method for delignifying/bleaching chemical pulp for manufacturing paper |
| CN101130936A (en) * | 2007-09-05 | 2008-02-27 | 山东轻工业学院 | Method for reducing energy consumption during wet refining of mechanical pulp |
| CN101220567A (en) * | 2008-01-24 | 2008-07-16 | 广东轻工职业技术学院 | Method for controlling with 100aste newsprint paper deinked pulp esterase |
| CN102061323A (en) * | 2010-11-10 | 2011-05-18 | 山东龙力生物科技股份有限公司 | Comprehensive utilization process of wood cellulose |
-
2014
- 2014-10-27 CN CN201410582212.5A patent/CN104452398B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH073683A (en) * | 1993-06-16 | 1995-01-06 | Mitsubishi Gas Chem Co Inc | Method for delignifying/bleaching chemical pulp for manufacturing paper |
| CN101130936A (en) * | 2007-09-05 | 2008-02-27 | 山东轻工业学院 | Method for reducing energy consumption during wet refining of mechanical pulp |
| CN101220567A (en) * | 2008-01-24 | 2008-07-16 | 广东轻工职业技术学院 | Method for controlling with 100aste newsprint paper deinked pulp esterase |
| CN102061323A (en) * | 2010-11-10 | 2011-05-18 | 山东龙力生物科技股份有限公司 | Comprehensive utilization process of wood cellulose |
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