CN1408942A - Pulping technology for paper-making by biological dry steaming without black liquor and pollution - Google Patents
Pulping technology for paper-making by biological dry steaming without black liquor and pollution Download PDFInfo
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- CN1408942A CN1408942A CN 02135392 CN02135392A CN1408942A CN 1408942 A CN1408942 A CN 1408942A CN 02135392 CN02135392 CN 02135392 CN 02135392 A CN02135392 A CN 02135392A CN 1408942 A CN1408942 A CN 1408942A
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Abstract
The pulping process includes soaking whear or rice straw in alkali liquor, mixing with biological assistant, dry steaming ni a sealed container with introduced steam and pulping in a pulping machine. The pulp is then bleached for making paper. The present invention digests pulp via biological fermentation and pulps via dry steaming process instead of traditional boiling process producing black liquor. Producing no black liquor and no relevant treating equipment results in saving in water, low power consumption and lowered production cost.
Description
One, technical field
The present invention relates to a kind of is the pulping technology for paper-making of raw material with the grass fiber, and specifically a kind of is the paper-making by biological dry steaming without black liquor and pollution pulping technique of raw material with the grass fiber.
Two, background technology
The pulping technology for paper-making of China is mainly alkaline process, ammonium sulfite, neutral Ya Nafa and half chemical method etc.These several traditional pulping technology for paper-making have a large amount of black liquor to discharge in digestion process, caused the serious environmental pollution, and present improvement to pulping technology for paper-making, all be the improvement of carrying out around the processing of black liquor, therefore, need to be equipped with sewage disposal device, equipment investment is big, general producer is difficult to bear, and brings bigger burden to enterprise, and has increased cost.
Three, summary of the invention
The purpose of this invention is to provide a kind of novel papermaking pulping technique that replaces boiling with dry blowing, promptly there are not black liquor and pollution, pulping technology for paper-making by biological dry steaming, this technology does not produce black liquor, pollution-free, saved the black liquor treatment facility, and can save a large amount of industrial waters, energy savings, reduced production cost.
The technical scheme that the present invention takes is: utilize the principle of biodegradation non-fibrous material, and adopt the dry blowing method to produce paper making pulp.Be about to wheat straw (or straw) after dipping by lye and biological assistant mixing and draining, put into closed container, do not add water, feeding steam carries out dry blowing and produces paper pulp.
Technical process of the present invention is: step 1: immersion → step 2: mixing → step 3: dry blowing → step 4: slurrying;
Step 1: soak: clean, dry wheat straw (or straw) is put into alkali lye soak, soak time is 0.5-2.5 hour, pulls wheat straw (or straw) then out and drains, and alkali lye is that sodium hydrate content (by weight) is the aqueous solution of 15-35%.
Step 2: mix: the wheat straw (or straw) after immersion is drained evenly mixes with biological assistant, its weight ratio is wheat straw (or straw): biological assistant=1: 0.02～0.04, biological assistant is by cellulase, invertase, carbohydrase, amino acid, bleeding agent JF
CUrea, magnesium sulfate, saccharomyces cerevisiae, starch, filler etc. evenly mix by a certain percentage and form.Its content (by weight) is: cellulase 0.3～1%, invertase 0.3～1%, carbohydrase 0.8～1.2%, amino acid 8～11%, bleeding agent JF
C7～12%, urea 17～22%, magnesium sulfate 15～22%, saccharomyces cerevisiae 3～6%, starch 9～12%, all the other are filler.Filler is the mixture of talcum powder or calcium powder or bone meal etc. or these several materials.
Step 3: dry blowing: the wheat straw (or straw) that will evenly be mixed with biological assistant is put into airtight container, feeds steam and carries out dry blowing, and the temperature of dry blowing is 98-120 ℃, and the time is 3-5 hour, and pressure is the 1-4 kilogram.Progressively release is cooled to normal pressure, normal temperature then, the wheat straw (or straw) after the taking-up dry blowing.
Step 4: slurrying: the wheat straw after the dry blowing (or straw) is put into clear water soaked 1-2 hour, pull out and drain, put into beater then and pull an oar, just make paper pulp.
The paper pulp of producing after the making beating just can be used for bleaching, papermaking.
Water after soaking wheat straw (or straw) adds flocculant, precipitates, and gets the upper strata clear water and still can be back to immersion wheat straw (or straw), promptly can be recycled, and its sediment takes out, can be used as after drying biological organic fertilizer and uses.
The present invention soaks clean, dry wheat straw (or straw) earlier earlier in alkali lye, non-grass fiber, lignin are expanded, add biological assistant then, and heating, each biology enzyme makes degraded and saccharification such as non-grass fiber, lignin, pectin at a certain temperature, just can produce paper pulp, use for bleaching, papermaking.Because the present invention utilizes the biodegradation principle, and replaced " cooking process " to produce pulp technology with " dry blowing method ", whole process of production does not have the black liquor discharging, the severe contamination of fundamentally having avoided black liquor to cause, can save a large amount of black liquor treatment facilities, save investment, reduce production cost, and saved a large amount of rinsing industrial waters, saved the energy.Therefore the present invention have with " dry blowing method " replaced " cooking process ", whole process of production do not have black liquor, pollution-free, protected environment, saved the black liquor treatment facility, saved a large amount of industrial waters, saved the energy, reduced characteristics such as production cost.
Four, concrete technical application scheme
Put into the alkali lye pond of containing alkali lye with selecting clean, dry wheat straw (or straw), alkali lye in the alkali lye pond is to contain 30% sodium hydroxide solution, soak, soak time is 1 hour, non-grass fiber, lignin in the wheat straw (or straw) are expanded, pull wheat straw (or straw) then out, drain and get final product.
To evenly mix through the biological assistant of the wheat straw (or straw) and 2.5% (with the hay weight ratio) after soak, draining.Biological assistant (by weight) is by cellulase 0.5%, invertase 0.5%, carbohydrase 1%, amino acid/11 0%, bleeding agent JF
C10%, urea 20%, magnesium sulfate 20%, saccharomyces cerevisiae 5%, starch 10%, all the other are that talcum powder is formed.
The wheat straw (or straw) that is mixed with biological assistant is put into closed container, do not add water, feed steam and carry out dry blowing, when closed container adopted the steaming pond, vapor (steam) temperature was controlled at 100～110 ℃, and the pressure that steams in the pond is normal pressure, and the time of steaming is 4～5 hours.When closed container adopted rotary spherical digester, vapor (steam) temperature was 110～120 ℃, and the pressure in the rotary spherical digester is 2.5～3 kilograms, and the time is 3～4 hours, while and steam and rotate rotary spherical digester, wheat straw (or straw) is heated evenly.
Soaked 1～2 hour with clear water taking out, put into clear water reserviors after wheat straw (or straw) cooling of steaming, pull out then, drain well, the wheat straw (or straw) after again clear water being soaked is put into beater and pulls an oar, just made the paper pulp of paper grade (stock), for bleaching, paper grade (stock).Water after soaking wheat straw (or straw) adds flocculant, makes contamination precipitation in the water, and its upper strata clear water still can be back to and soak wheat straw (or straw), and sediment can be used as the fertilizer use after drying.
Because pulping process of the present invention is to utilize biological assistant at a certain temperature with degraded and saccharification such as non-grass fiber, lignin, pectin, replaced traditional " cooking process " with " dry blowing method ", whole process of production does not produce black liquor, also just avoided the severe contamination of black liquor, saved the industrial water of equipment that black liquor is handled and a large amount of rinsings, for paper-making pulping provide a kind of replace conventional method, no black liquor and pollution, utilize the biodegradation principle, with the paper-making pulping new technology of " dry blowing " replacement " boiling ".
Claims (3)
1, a kind of is the paper-making by biological dry steaming without black liquor and pollution pulping technique of raw material with the grass fiber, it is characterized in that adopting " dry blowing method " to produce paper pulp, be about to wheat straw (or straw) after dipping by lye and biological assistant mixing and draining, put into closed container, do not add water, feeding steam carries out dry blowing and produces paper pulp.
2, paper-making by biological dry steaming without black liquor and pollution pulping technique according to claim 1, it is characterized in that: technical process is: step 1: immersion → step 2: mixing → step 3: dry blowing → step 4: slurrying;
Step 1: soak: clean, dry wheat straw (or straw) is put into alkali lye soak, soak time is 0.5-2.5 hour, pulls wheat straw (or straw) then out and drains;
Step 2: mix: the wheat straw (or straw) after immersion is drained evenly mixes with biological assistant, and its weight ratio is wheat straw (or straw): biological assistant=1: 0.02～0.04;
Step 3: dry blowing: the wheat straw (or straw) that will evenly be mixed with biological assistant is put into closed container, feeds steam and carries out dry blowing, and the temperature of dry blowing is 98-120 ℃, and the time is 3-5 hour, and pressure is the 1-4 kilogram;
Step 4: slurrying: the wheat straw after the dry blowing (or straw) is put into clear water soaked 1-2 hour, pull out and drain, put into the beater making beating then, just make paper pulp.
3, paper-making by biological dry steaming without black liquor and pollution pulping technique according to claim 2, it is characterized in that step 2: the biological assistant described in the mixing includes cellulase, invertase, carbohydrase, amino acid, bleeding agent JF
C, urea, magnesium sulfate, saccharomyces cerevisiae, starch, filler, its content (by weight) is: cellulase 0.3～1%, invertase 0.3～1%, carbohydrase 0.8～1.2%, amino acid 8～11%, bleeding agent JF
C～12%, urea 17～22%, magnesium sulfate 15～22%, saccharomyces cerevisiae 3～6%, starch 9～12%, all the other are filler.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02135392 CN1408942A (en) | 2002-08-29 | 2002-08-29 | Pulping technology for paper-making by biological dry steaming without black liquor and pollution |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02135392 CN1408942A (en) | 2002-08-29 | 2002-08-29 | Pulping technology for paper-making by biological dry steaming without black liquor and pollution |
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| CN1408942A true CN1408942A (en) | 2003-04-09 |
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| CN 02135392 Pending CN1408942A (en) | 2002-08-29 | 2002-08-29 | Pulping technology for paper-making by biological dry steaming without black liquor and pollution |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101210394B (en) * | 2006-12-29 | 2010-05-19 | 汪官久 | Technique for producing pure biological paper pulp |
| CN101225614B (en) * | 2008-02-02 | 2011-07-27 | 陈淑华 | Paper-making technique employing bio-fermentation pulping method instead of chemical pulping technique |
| CN102230288A (en) * | 2011-07-08 | 2011-11-02 | 李树泉 | Straw bio-enzyme degradation aid and degradation pulping process |
| CN101748633B (en) * | 2008-12-19 | 2012-07-04 | 北京英力生科新材料技术有限公司 | Novel cellulose extraction process |
| CN101899794B (en) * | 2009-05-27 | 2012-07-04 | 北京英力生科新材料技术有限公司 | Green process for extracting fibers from plants |
| CN102776595A (en) * | 2012-08-16 | 2012-11-14 | 泰安市奇能化工科技有限公司 | Method for producing rayon fiber through plant fiber liquefaction |
| WO2013082735A1 (en) * | 2011-12-07 | 2013-06-13 | 北京英力生科新材料技术有限公司 | Chemical mechanical pulping method |
| CN104611964A (en) * | 2015-01-15 | 2015-05-13 | 陕西科技大学 | Acacia mangium sulfite method based high-brightness semi-chemical pulp producing method |
| CN104727174A (en) * | 2013-12-18 | 2015-06-24 | 广西岑溪市英力生科技术有限公司 | Novel black liquor-free clean bamboo pulp production process with smart washing |
| CN115726208A (en) * | 2021-08-31 | 2023-03-03 | 山东双圆生物科技有限公司 | Pulping catalyst, preparation method and application thereof |
-
2002
- 2002-08-29 CN CN 02135392 patent/CN1408942A/en active Pending
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101210394B (en) * | 2006-12-29 | 2010-05-19 | 汪官久 | Technique for producing pure biological paper pulp |
| CN101225614B (en) * | 2008-02-02 | 2011-07-27 | 陈淑华 | Paper-making technique employing bio-fermentation pulping method instead of chemical pulping technique |
| CN101748633B (en) * | 2008-12-19 | 2012-07-04 | 北京英力生科新材料技术有限公司 | Novel cellulose extraction process |
| CN101899794B (en) * | 2009-05-27 | 2012-07-04 | 北京英力生科新材料技术有限公司 | Green process for extracting fibers from plants |
| CN102230288B (en) * | 2011-07-08 | 2013-06-05 | 泰安市奇能化工科技有限公司 | Straw bio-enzyme degradation aid and degradation pulping process |
| CN102230288A (en) * | 2011-07-08 | 2011-11-02 | 李树泉 | Straw bio-enzyme degradation aid and degradation pulping process |
| WO2013082735A1 (en) * | 2011-12-07 | 2013-06-13 | 北京英力生科新材料技术有限公司 | Chemical mechanical pulping method |
| CN102776595A (en) * | 2012-08-16 | 2012-11-14 | 泰安市奇能化工科技有限公司 | Method for producing rayon fiber through plant fiber liquefaction |
| CN102776595B (en) * | 2012-08-16 | 2013-12-11 | 泰安市奇能化工科技有限公司 | Method for producing rayon fiber through plant fiber liquefaction |
| CN104727174A (en) * | 2013-12-18 | 2015-06-24 | 广西岑溪市英力生科技术有限公司 | Novel black liquor-free clean bamboo pulp production process with smart washing |
| CN104727174B (en) * | 2013-12-18 | 2017-04-19 | 北京英力生科新材料技术有限公司 | Black liquor-free clean bamboo pulp production process with smart washing |
| CN104611964A (en) * | 2015-01-15 | 2015-05-13 | 陕西科技大学 | Acacia mangium sulfite method based high-brightness semi-chemical pulp producing method |
| CN104611964B (en) * | 2015-01-15 | 2016-04-20 | 陕西科技大学 | A kind of pulping process of Acacia sulphite process high whiteness semi-chemical pulp |
| CN115726208A (en) * | 2021-08-31 | 2023-03-03 | 山东双圆生物科技有限公司 | Pulping catalyst, preparation method and application thereof |
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