CN104153243A - New pulping promotion fiber modification bio-enzyme preparation - Google Patents
New pulping promotion fiber modification bio-enzyme preparation Download PDFInfo
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- CN104153243A CN104153243A CN201310174693.1A CN201310174693A CN104153243A CN 104153243 A CN104153243 A CN 104153243A CN 201310174693 A CN201310174693 A CN 201310174693A CN 104153243 A CN104153243 A CN 104153243A
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Abstract
The invention discloses a new pulping promotion fiber modification bio-enzyme preparation characterized by including an aqueous solution, the aqueous solution contains fatty alcohol-polyoxyethylene ether accounting for 0.2%-1% of the total mass, polyoxyethylene accounting for 0.1%-2% and calcium propionate accounting for 0.01%-0.05%, the aqueous solution also contains endo-cellulase, exo-cellulase and xylanase. According to the actual required amount of the bio-enzyme preparation during pulping in papermaking production, the bio-enzyme preparation is prepared, the prepared bio-enzyme preparation is required to be used in certain conditions such as temperature of 25 to 70 DEG C, the pH value of 4.0-9.0 and the time of 30-150min. The new pulping promotion fiber modification bio-enzyme preparation mainly solves the problem of high energy consumption of pulping working process, greatly reduces the power consumption required for pulping in papermaking production, solves the problem of long pulping time, insufficient folding endurance, edge bursting and the like, and improves comprehensively the production benefit of a paper plant.
Description
Technical field
The present invention relates to a kind of fibre modification biological enzyme formulation of novel promotion making beating, be mainly used in the preliminary treatment before sulfate wood pulp making beating in paper industry.
Background technology
Paper industry is one of pillar industry of Chinese national economy, and traditional paper technology is seriously polluted to environment.Along with the increase of country to environmental protection dynamics, energy-conservation, the reduction of discharging situation of China's papermaking enterprise have obtained certain change, and some pollute large, and the enterprise that production scale is little is closed.In the National Program for Medium-to Long-term Scientific and Technological Development (2006～the year two thousand twenty) that at the beginning of 2006, China puts into effect, one of theme of major fields 3 (environment) is exactly comprehensive anti-pollution and recycling waste.On February 7th, 2010, Chinese Ministry of Environmental Protection has carried out national Pollutant source investigation statistics for the first time, the wastewater flow rate being discharged by paper industry for 2007 ranked first position in China's industrial wastewater, wherein COD (COD) discharge capacity accounts for 31.3% of all industry, within 2012, paper industry COD discharge capacity accounts for 35% of national industrial total amount, therefore carry out the cleaner production of slurrying, papermaking, reduce discharge of wastewater very necessary.Along with people require to improve environment, conserve forests, save the energy and raw material, the cry of reduction papermaking cost grows to even greater heights; add environmental requirement more and more stricter; paper making raw material price rises steadily and Pressure on Energy, and papermaking enterprise energy-saving and emission-reduction cause the attention of countries in the world government and enterprise.Papermaking enterprise energy-saving and emission-reduction can promote the raising of paper industry concentration degree, promote industry restructuring, are conducive to the future development of the modernization paper industry of environmentally friendly, resource-conserving.
Making beating, is a very important operation of papermaking, and making beating needs to consume a large amount of energy, accounts for from timber to becoming paper to produce 15%～18% of total energy consumption.Account for the sulfate pulp of global chemical pulp annual production 89%, it is difficult for making beating, consumes a large amount of energy, and all power consumption 200～300kWh/t starches, and high shiny beating average power consumption is 250～500kWh/t slurry.Reducing the particularly beating energy consumption of sulfate pulp of paper pulp, is a strategic problem of paper industry energy-saving and emission-reduction.Paper industry is energy-conservation two kinds of approach: from management aspect, reduce energy consumption of unit product; Utilize new technology to reduce energy consumption of unit product.Simultaneously, along with the rise of commercial pulp price and the amount of increase of paper product price less, the reduction of paper product profit margin, the existence of part papermaking enterprise is more and more difficult, can only replace import slurry by the relatively cheap domestic slurry of buying, for enterprise creates profit, but use domestic slurry to have risk, the especially impact on art paper intensity that strength ratio import slurry is poor, cause paper strength to decline.Because folding explosion problem becomes large and medium-sized art paper manufacturing enterprise urgent need to solve the problem after part halftone paper printing always, if produce pulp strength variation again, that problem will be more serious.More much type art paper paper machines is gone into operation and is discharged the current of production capacity at home, how when guaranteeing paper product profit, to guarantee or the quality that improves art paper becomes the most important thing of each large papermaking enterprise.
In existing technique, the optimization space of the saving of beating energy consumption from equipment and flow process is minimum.How the intensity of paper is improved by chemical intensifier, but effect is limited, and cost is high, also can bring other aspect problems of paper machine operation and paper, as surface printing performance, anionic trash etc.Therefore by biotechnology Integral lifting paper industry technical merits more clean, energy-saving and environmental protection, the image that changes high energy consumption high pollution is imperative.
Biotechnology receives more concern, because it can reduce destruction to environment, saves the energy, improve the quality of products.Compare with general abiotic catalyst, enzyme has the features such as mildness, selectivity, high efficiency and adjustability.By enzyme preliminary treatment, can improve paper pulp fiber, reduce beating energy consumption, also likely improve water filtering performance and the quality of finished paper of paper pulp.The application technology of biology enzyme in papermaking is more and more ripe, the fibre modification biological enzyme formulation that wherein novel promotion is pulled an oar, except what everybody knew in the past, be that it reduces the effect of refining energy consumption aspect, how to utilize the fibre modification biological enzyme formulation of novel promotion making beating to improve paper strength, by many personages that are devoted to papermaking biology enzyme, paid close attention to.
Summary of the invention
The object of the present invention is to provide a kind of fibre modification biological enzyme formulation of novel promotion making beating, mainly solve the problem that beater floor energy consumption is high, greatly reduce the required power consumption of defibrination in paper, through suitable technique, coordinate simultaneously, solve the problems such as beating time is long, folding strength is not enough, chip, comprehensively improve paper plant's productivity effect.
For this reason, the invention provides a kind of fibre modification biological enzyme formulation of novel promotion making beating, particular content is as follows:
1, a kind of fibre modification biological enzyme formulation of novel promotion making beating, it is characterized in that, comprise the aqueous solution, in the aqueous solution, contain and account for fatty alcohol-polyoxyethylene ether that the percentage of gross mass is 0.2%～1%, 0.1%～2% polyethylene glycol oxide and 0.01%～0.05% calcium propionate, in the aqueous solution, also contain endo cellulase, circumscribed cellulase and zytase.
Preferably, in the fibre modification biological enzyme formulation of described novel promotion making beating, the content of described endo cellulase, circumscribed cellulase and zytase is in every 1g aqueous solution, to contain endo cellulase 1000～1500u, circumscribed cellulase 200～300u and zytase 0～500u; Because the cellulase adding and the weight of zytase are very light, can ignore, so can not affect the proportion of the aqueous solution.
2, a compound method for the fibre modification biological enzyme formulation of novel promotion making beating, is characterized in that, comprises the following steps:
1) first polyethylene glycol oxide and deionized water are turned and carry out stirring action 1.5～2.5 hours with per minute 40～50, then use 200～270 mesh filter screen impurity screenings, obtain concentration and be 5～10% polyoxyethylene aqueous solution;
2) with deionized water by calcium propionate with get fatty alcohol-polyoxyethylene ether and be placed in agitator tank and carry out dissolved dilution;
3) polyoxyethylene aqueous solution is poured in agitator tank, with calcium propionate with get fatty alcohol-polyoxyethylene ether solution and mix, add endo cellulase, circumscribed cellulase and zytase, reach to contain in the aqueous solution and account for the fatty alcohol-polyoxyethylene ether that the percentage of gross mass is 0.2%～1%, 0.1%～2% polyethylene glycol oxide and 0.01%～0.05% calcium propionate, in the aqueous solution, also contain endo cellulase, circumscribed cellulase and zytase, wherein in every 1g aqueous solution, contain endo cellulase 1000～1500u, circumscribed cellulase 200～300u and zytase 0～500u,
4) speed turning with per minute kind 30～40 stirs 20～50min.
Preferably, the polyethylene glycol oxide in the compound method of the fibre modification biological enzyme formulation of described novel promotion making beating, step 1) and deionized water are with the speed stirring of 50 turn/min 2.0 hours.
Preferably, in the compound method of the fibre modification biological enzyme formulation of described novel promotion making beating, described screen pack the best is 230 orders.
Preferably, in the compound method of the fibre modification biological enzyme formulation of described novel promotion making beating, described step 4), with per minute 40 speed that turn, stir aqueous solution 30min.
3, in a kind of application of fibre modification biological enzyme formulation of novel promotion making beating, the biological enzyme formulation of application as described in 1, and the condition of reacting required is: temperature, 25 ℃～70 ℃; PH value, 4.0～9.0; Time, 30～150min.
Preferably, in the application of the fibre modification biological enzyme formulation of described a kind of novel promotion making beating, the condition of described biological enzyme formulation reaction is: temperature, 40 ℃～60 ℃; PH value, 5.0～7.0; Time, 60～120min.
The present invention contains effective cellulase components, restriction endonuclease can effectively promote fibre cutting and swollen, goes far towards the reduction of Specific energy, and excision enzyme and zytase effectively promote the sub-wire of fiber ends, expose abundant hydroxyl and carboxyl, promote adhesion between fiber.The synergy of plurality of enzymes makes the wire-dividing broom purification degree of fiber surface higher simultaneously, thereby avoids strength excessively to cut off, and has retained longer fibre length, and the folding strength of paper and tearability are improved.The lifting of run-inflation effect is effective fortifying fibre Hydrogenbond power also, improves fines retention.Auxiliary agent is put forward dispersion and the stability of biology enzyme component in the aqueous solution, diffusion and infiltration while promoting to use in paper pulp; Calcium propionate has antisepsis, and products quality guarantee is stable.
The specific embodiment:
Specific embodiment 1
At certain coated manila production line, use endo cellulase 1200u/g, circumscribed cellulase 200u/g, zytase 0u/g, fatty alcohol-polyoxyethylene ether-20 mass fraction is 0.5%, polyethylene glycol oxide (PE0-15, relative molecular weight are 3000000～5000000) mass fraction 1.0%, the mix proportion scheme that calcium propionate mass fraction is 0.02%, slurry per ton is used 133g biological enzyme formulation.Biological enzyme formulation needs configured in advance good, and its compound method is as follows:
1) first polyethylene glycol oxide and deionized water are turned and carry out stirring action 2.5 hours with per minute 40, then use 270 mesh filter screen impurity screenings, obtain concentration and be 10% polyoxyethylene aqueous solution;
2) with deionized water by calcium propionate with get fatty alcohol-polyoxyethylene ether and be placed in agitator tank and carry out dissolved dilution;
3) polyoxyethylene aqueous solution is poured in agitator tank, with calcium propionate with get fatty alcohol-polyoxyethylene ether solution and mix, add endo cellulase, circumscribed cellulase and zytase, reach to contain in the aqueous solution and account for fatty alcohol-polyoxyethylene ether that the percentage of gross mass is 0.5%, 1.0 polyethylene glycol oxide and 0.02% calcium propionate, in the aqueous solution, also contain endo cellulase, circumscribed cellulase and zytase, wherein in every 1g aqueous solution, contain endo cellulase 1200u, circumscribed cellulase 200u and zytase 0u;
4) speed turning with per minute kind 30 stirs 50min.
First in pulping pot, drop into the reuse plain boiled water of approximately 40 cubic metres of enough water, water temperature is 40～50 ℃, pH value is 7.2～7.3, then drop into approximately 1.8 tons of over dry pulpboards, add 240g biological enzyme formulation, pulping finishes the front slurry of the mill tower that disposed slurry is delivered to 270 cubes of material simultaneously, and liquid level remains on 200 cubes of left and right, per hourly with slurry, measure approximately 8 tons of oven dry stocks, slurry stops and after 90～100 minutes, starts defibrination to beating degree and reach 30～33 ° of SR.Result shows, making beating enzyme can be saved bleached sulphate softwood pulp Specific energy and reach 70kwh/ ton slurry, greatly saved energy consumption, the making beating enzyme product that has successfully replaced the internationally famous biotech company of Denmark, and obtain stable application, and through long-time, using simultaneously, to a certain degree improve the problems such as folding strength deficiency that this type of high-grade culture paper faces, chip, interlayer adhesion improves, and makes into paper folding strength and improves 3 left and right.
Specific embodiment 2
Certain workshop is used 18% bleaching needle-point leaf pulp and 82% bleached hardwood pulp to produce neutral sizing, use endo cellulase 1000u/ml, circumscribed cellulase 300u/ml, zytase 100u/ml, fatty alcohol-polyoxyethylene ether-20 mass fraction is 0.3%, polyethylene glycol oxide (PE0-15, relative molecular weight are 3000000～5000000) mass fraction 0.8%, the biological enzyme formulation scheme that calcium propionate mass fraction is 0.03%, slurry per ton is used biological enzyme formulation 150g.Biological enzyme formulation needs configured in advance good, and its compound method is as follows:
1) first polyethylene glycol oxide and deionized water are turned and carry out stirring action 1.5 hours with per minute 59, then use 230 mesh filter screen impurity screenings, obtain concentration and be 5% polyoxyethylene aqueous solution;
2) with deionized water by calcium propionate with get fatty alcohol-polyoxyethylene ether and be placed in agitator tank and carry out dissolved dilution;
3) polyoxyethylene aqueous solution is poured in agitator tank, with calcium propionate with get fatty alcohol-polyoxyethylene ether solution and mix, add endo cellulase, circumscribed cellulase and zytase, reach to contain in the aqueous solution and account for fatty alcohol-polyoxyethylene ether that the percentage of gross mass is 0.3%, 0.8 polyethylene glycol oxide and 0.03% calcium propionate, in the aqueous solution, also contain endo cellulase, circumscribed cellulase and zytase, wherein in every 1g aqueous solution, contain endo cellulase 1000u, circumscribed cellulase 300u and zytase 100u;
4) speed turning with per minute kind 40 stirs 30min.
First in pulping pot, add approximately 20 cubic metres of reuse plain boiled waters and part hot water, water temperature is 65～70 ℃, pH value is 8.5～8.8, when adding water, drop in proportion 1.4 tons of oven dry stocks of pulpboard, now in pulping pot, add biological enzyme formulation 210g, pulping is transported to the front slurry of the mill tower of approximately 100 cubic metres, liquid level approximately 80% after approximately 15 minutes, per hour with approximately 8 tons, slurry, slurry started defibrination to 56～60 ° of SR of beating degree after 30～40 minutes.Guaranteeing that under weight in wet base index stable case, beating degree reduces slightly, produce dehydration and drying property good, become paper index steadily increasing, greatly shorten the defibrination time simultaneously, ton slurry Specific energy reduces by 80～100 degree, approximately 50 yuan of costs.
Specific embodiment 3
The high shiny beating of certain station-service true qualities kp softwood pulp is produced kraft capacitor paper, use endo cellulase 1500u/ml, circumscribed cellulase 250u/ml, zytase 300u/ml, fatty alcohol-polyoxyethylene ether-20 mass fraction is 0.8%, polyethylene glycol oxide (PE0-15, relative molecular weight are 3000000～5000000) mass fraction 1.5%, the biological enzyme formulation scheme that calcium propionate mass fraction is 0.05%, slurry per ton is used biological enzyme formulation 280g.Biological enzyme formulation needs configured in advance good, and its compound method is as follows:
1) first polyethylene glycol oxide and deionized water are turned and carry out stirring action 2.0 hours with per minute 45, then use 200 mesh filter screen impurity screenings, obtain concentration and be 8% polyoxyethylene aqueous solution;
2) with deionized water by calcium propionate with get fatty alcohol-polyoxyethylene ether and be placed in agitator tank and carry out dissolved dilution;
3) polyoxyethylene aqueous solution is poured in agitator tank, with calcium propionate with get fatty alcohol-polyoxyethylene ether solution and mix, add endo cellulase, circumscribed cellulase and zytase, reach to contain in the aqueous solution and account for fatty alcohol-polyoxyethylene ether that the percentage of gross mass is 0.8%, 1.5% polyethylene glycol oxide and 0.05% calcium propionate, in the aqueous solution, also contain endo cellulase, circumscribed cellulase and zytase, wherein in every 1g aqueous solution, contain endo cellulase 1500u, circumscribed cellulase 250u and zytase 300u;
4) speed turning with per minute kind 35 stirs 40min.
In trough-style pulp beater, drop into approximately 1.5 tons of pulp boards, add water to concentration to be about 5%, temperature is 25～30 ℃, pH value is 6.8～7.0, then start after stone Kun trough-style pulp beater makes slurry concentration evenly and drop into about 420g biological enzyme formulation, slurry stops after 60～80 minutes, to continue to pull an oar to beating degree and reaches 96 ° of SR.Result shortens the time of former slot type making beating greatly, from original making beating, within 11 hours, foreshortens to 9 hours, and ton slurry is saved power consumption and reached 200kwh, effectively saves the energy.
Specific embodiment 4
Certain workshop produces fine tissue with 30% needle slurry and 70% broad-leaved slurry, use endo cellulase 1300u/ml, circumscribed cellulase 250u/ml, zytase 500u/ml, fatty alcohol-polyoxyethylene ether-20 mass fraction is 0.2%, polyethylene glycol oxide (PE0-15, relative molecular weight are 3000000～5000000) mass fraction 0.5%, the making beating enzyme scheme that calcium propionate mass fraction is 0.05%, slurry per ton is used biology enzyme 110ml. slurry per ton to use biology enzyme 100ml.Biological enzyme formulation needs configured in advance good, and its compound method is as follows:
1) first polyethylene glycol oxide and deionized water are turned and carry out stirring action 2.0 hours with per minute 45, then use 200 mesh filter screen impurity screenings, obtain concentration and be 10% polyoxyethylene aqueous solution;
2) with deionized water by calcium propionate with get fatty alcohol-polyoxyethylene ether and be placed in agitator tank and carry out dissolved dilution;
3) polyoxyethylene aqueous solution is poured in agitator tank, with calcium propionate with get fatty alcohol-polyoxyethylene ether solution and mix, add endo cellulase, circumscribed cellulase and zytase, reach to contain in the aqueous solution and account for fatty alcohol-polyoxyethylene ether that the percentage of gross mass is 0.2%, 0.5% polyethylene glycol oxide and 0.05% calcium propionate, in the aqueous solution, also contain endo cellulase, circumscribed cellulase and zytase, wherein in every 1g aqueous solution, contain endo cellulase 1300u, circumscribed cellulase 250u and zytase 500u;
4) speed turning with per minute kind 40 stirs 30min.
Needle slurry pulping is the continuous pulping of hydrabrusher, producing is 30～40 ℃ by plain boiled water temperature, and due to pulpboard slant acidity, slurry pH value is 4.3～4.5, pulping amount per hour is about 4.8 tons of oven dry stocks, when pulping feeds intake, with measuring pump, with the flow of 8ml/ minute, adds making beating enzyme.Broken good slurry is transported to and unloads slurry tower before slurry slurry tower and mill, starts defibrination and make beating degree reach 28～30 ° of SR after 120～150 minutes, and the behaviour that then slurry carries out paper makes.Result makes former Specific energy be reduced to 180kwh/t oven dry stock from 240kwh/t oven dry stock, becomes paper tension intensity to have 30% raising, has reduced 2 kilograms of health body paper per ton of dry strength agent use amount, makes comprehensive production cost reduce by 40 yuan/ton.
Claims (8)
1. the fibre modification biological enzyme formulation of a novel promotion making beating, it is characterized in that, comprise the aqueous solution, in the aqueous solution, contain and account for fatty alcohol-polyoxyethylene ether that the percentage of gross mass is 0.2%～1%, 0.1%～2% polyethylene glycol oxide and 0.01%～0.05% calcium propionate, in the aqueous solution, also contain endo cellulase, circumscribed cellulase and zytase.
2. the fibre modification biological enzyme formulation that novel promotion as claimed in claim 1 is pulled an oar, it is characterized in that, the content of described endo cellulase, circumscribed cellulase and zytase is in every 1g aqueous solution, to contain endo cellulase 1000～1500u, circumscribed cellulase 200～300u and zytase 0～500u.
3. a compound method for the fibre modification biological enzyme formulation of novel promotion making beating, is characterized in that, comprises the following steps:
1) first polyethylene glycol oxide and deionized water are turned and carry out stirring action 1.5～2.5 hours with per minute 40～50, then use 200～270 mesh filter screen impurity screenings, obtain concentration and be 5～10% polyoxyethylene aqueous solution;
2) with deionized water by calcium propionate with get fatty alcohol-polyoxyethylene ether and be placed in agitator tank and carry out dissolved dilution;
3) polyoxyethylene aqueous solution is poured in agitator tank, with calcium propionate with get fatty alcohol-polyoxyethylene ether solution and mix, add endo cellulase, circumscribed cellulase and zytase, reach to contain in the aqueous solution and account for the fatty alcohol-polyoxyethylene ether that the percentage of gross mass is 0.2%～1%, 0.1%～2% polyethylene glycol oxide and 0.01%～0.05% calcium propionate, in the aqueous solution, also contain endo cellulase, circumscribed cellulase and zytase, wherein in every 1g aqueous solution, contain endo cellulase 1000～1500u, circumscribed cellulase 200～300u and zytase 0～500u,
4) speed turning with per minute kind 30～40 stirs 20～50min.
4. the compound method of the fibre modification biological enzyme formulation of novel promotion making beating as claimed in claim 3, is characterized in that step 1) in polyethylene glycol oxide and deionized water be with the speed stirring of 50 turn/min 2.0 hours.
5. the compound method of the fibre modification biological enzyme formulation of novel promotion making beating as claimed in claim 3, is characterized in that, described screen pack the best is 230 orders.
6. the compound method of the fibre modification biological enzyme formulation of novel promotion making beating as claimed in claim 3, is characterized in that described step 4) in per minute 40 speed that turn, stir aqueous solution 30min.
7. an application for the fibre modification biological enzyme formulation of novel promotion making beating, is characterized in that, apply biological enzyme formulation as claimed in claim 1, and the condition of reacting required is: temperature, 25 ℃～70 ℃; PH value, 4.0～9.0; Time, 30～150min.
8. the application of the fibre modification biological enzyme formulation of a kind of novel promotion making beating as claimed in claim 7, is characterized in that, the condition of described biological enzyme formulation reaction is: temperature, 40 ℃～60 ℃; PH value, 5.0～7.0; Time, 60～120min.
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Citations (4)
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| US5725732A (en) * | 1994-11-18 | 1998-03-10 | P. H. Glatfelter Company | Process for treating hardwood pulp with an enzyme mixture to reduce vessel element picking |
| WO2001036740A2 (en) * | 1999-11-19 | 2001-05-25 | Buckman Laboratories International, Inc. | Paper making processes using enzyme and polymer combinations |
| CN1924188A (en) * | 2006-09-20 | 2007-03-07 | 山东轻工业学院 | Biological treatment method of non-wood pulp |
| CN101613980A (en) * | 2009-07-18 | 2009-12-30 | 大庆天成生物纤维制品有限责任公司 | A kind of biological assistant of grass as raw material cleaning pulping |
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2013
- 2013-05-13 CN CN201310174693.1A patent/CN104153243A/en active Pending
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|---|---|---|---|---|
| US5725732A (en) * | 1994-11-18 | 1998-03-10 | P. H. Glatfelter Company | Process for treating hardwood pulp with an enzyme mixture to reduce vessel element picking |
| WO2001036740A2 (en) * | 1999-11-19 | 2001-05-25 | Buckman Laboratories International, Inc. | Paper making processes using enzyme and polymer combinations |
| CN1924188A (en) * | 2006-09-20 | 2007-03-07 | 山东轻工业学院 | Biological treatment method of non-wood pulp |
| CN101613980A (en) * | 2009-07-18 | 2009-12-30 | 大庆天成生物纤维制品有限责任公司 | A kind of biological assistant of grass as raw material cleaning pulping |
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| 计红果 等: "聚乙二醇增强纤维素酶水解玉米秸秆", 《华中科技大学学报（自然科学版）》 * |
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