CN104005250A - Method for eliminating starch interferent in OCC raw material papermaking white water - Google Patents
Method for eliminating starch interferent in OCC raw material papermaking white water Download PDFInfo
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- CN104005250A CN104005250A CN201310059308.9A CN201310059308A CN104005250A CN 104005250 A CN104005250 A CN 104005250A CN 201310059308 A CN201310059308 A CN 201310059308A CN 104005250 A CN104005250 A CN 104005250A
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Abstract
The invention belongs to the papermaking field and particularly relates to a method for eliminating starch interferent in OCC raw material papermaking white water. OCC raw materials contain 4-6% of starch enhancer, parts of starch adhered to the surface of fiber during the pulping process and before paper material wiring can be dissolved in water to become the major water-soluble anion interferent in a papermaking wet part system; even the white water is filtered through a multi-disc filtering machine, the ultraclean water of the white water cannot be applied to washing wire felts. According to the method for eliminating the starch interferent in the OCC raw material papermaking white water, bio-enzymes are utilized to degrade the macromolecule interferent in the papermaking white water, blocking of forming wires or squeezing felts due to the macromolecule interferent during the white water recycling process can be eliminated, and the degraded white water can substitute for clean water. The method for eliminating the starch interferent in the OCC raw material papermaking white water has the advantages of degrading the macromolecule starch in the papermaking white water through the bio-enzymes, eliminating the influence of the starch interferent in the white water on water quality and enabling the degraded white water to substitute for the clean water for cleaning the forming wires and the squeezing felts. The method for eliminating the starch interferent in the OCC raw material papermaking white water is simple and practical and can be applied to starchy anion materials control in white water and clean papermaking production of OCC raw material papermaking enterprises.
Description
One, technical field:
The invention belongs to field of papermaking, be specifically related to the removal method of chaff interference in a kind of OCC raw material mthod of white water from paper making.
Two, background technology:
Paper process plain boiled water constituent is complicated, and COD load is high, and reuse and intractability are large, is a difficult problem for puzzlement paper industry cleaner production and energy-saving and emission-reduction always.The paper pulp fiber of Production and Packaging paper and cardboard, is all almost OCC raw material, and along with waste paper is recycled number of times increase, the quality of reclaimed fibre raw material is in continuous decline.Starch is hydrophilic natural macromolecule, and starch and modified starch are with its wide material sources, cheap, is the paper making intensifier of papermaking enterprise consumption maximum.
Yet, take in the boxboard and production of fluting base paper process that OCC is paper making raw material, be attached to the starch on fiber or paper surface, because of its hydrophilic characteristic, soak for a long time and mechanical friction, considerable part starch enters dissolving in process water, becomes anionic species rubbish.Due to the reuse repeatedly of process water, in process water, the amount of starch is in continuous accumulation, and inaction consumes cationic functional auxiliary agent, blocks felt space, affects mthod of white water from paper making circulating and recovering.In addition, starch circulates and accumulation in plain boiled water, very easily causes the breeding of microorganism, further worsens plain boiled water water quality and causes paper defects.
At present, the control method that papermaking enterprise generally adopts is Gaoyang charge density low-molecular weight polymer or poly-dielectric, by Electrostatic Absorption and migrate out wet end.Yet, for take the system of OCC as paper making raw material production boxboard and fluting medium completely, owing to having used a large amount of starch as reinforcing agent in boxboard and production of fluting base paper process, and this starch reinforcing agent generally adopts the method for enzymolysis to make, substantially without electrically, though have micro-negative charge also easily the calcium ions and magnesium ions with water in be combined and lose electrical.Therefore, adopt conventional method to be difficult to prove effective, need constantly to supplement fresh water to maintain the clean of system.
Starch consists of amylose and amylopectin, and α-amylase can effectively be cut off α-Isosorbide-5-Nitrae glycosidic bond connection amylose and become glucose, and carbohydrase can cut off α-1, and the amylopectin that 6 glycosidic bonds connect becomes glucose.In mthod of white water from paper making, utilize the efficient single-minded characteristic of amylase, can effectively get rid of the accumulation of starch in process water, eliminate the obstruction to felt space, make mthod of white water from paper making circulating and recovering more.
Original intention of the present invention is to utilize α-amylase and carbohydrase coordinated enzymatic hydrolysis starch to become glucose, eliminate the harm of starch based chaff interference to net blanket, production process and product quality in plain boiled water, for papermaking enterprise is to starch based anionic species control in plain boiled water, the application of clean paper making technology, provide a kind of method.
Three, summary of the invention:
The present invention is intended to utilize the starch in amylase enzymolysis plain boiled water to become glucose, eliminates out the macromolecule starch in the super pure water of multi-disc type filter, substitutes clear water cleaning for paper making forming net and press felt.
The present invention specifically comprises the following steps:
(1) plain boiled water filters through multi-disc type filter, isolates solid content.
(2) go out the super pure water of multi-disc type filter, be warmed up to 50～65 ℃, add amylase to process 1～2hr.
The invention has the advantages that:
Proposed a kind ofly to utilize the starch in amylase enzymolysis mthod of white water from paper making to become reducing sugar, eliminate starch based chaff interference in plain boiled water, realize clean for paper making forming net and press felt of super pure water, compare with at present super pure water application, the present invention has following advantage:
(1) the super pure water after amylase processing can substitute clear water completely, reduces a ton paper fresh water consumption.
(2) remain in the amylase in super clear water, needn't carry out inactivation treatment.
(3) the removal method of starch chaff interference in OCC raw material mthod of white water from paper making of the present invention, only needing increases a cistern, and technological process is simple.
Four, the specific embodiment
Example 1: in paper machine white water, solid content is separated, and its step is as follows:
(1) by paper machine residue plain boiled water, through multi-disc type filter, filter;
(2) go out the super pure current excess of imports clear water collecting tank of multi-disc type filter.
Example 2: amylorrhexis in mthod of white water from paper making, step is as follows:
(1) super pure water is warmed up to 50～65 ℃;
(2) in super pure water, add the amylase of amount of starch 0.01～0.001% to carry out enzymolysis 1～2h, enzymolysis finishes;
(3) the super pure water after enzymolysis is for paper machine screen cloth and press felt rinse water.
Claims (6)
1. the removal method of starch chaff interference in a kind of OCC raw material mthod of white water from paper making provided by the present invention, comprises the following steps:
(1) plain boiled water filters through multi-disc type filter, isolates solid content.
(2) go out the super pure water of multi-disc type filter, be warmed up to 50～65 ℃, add amylase to process 1～2hr.
2. according to the removal method of starch chaff interference in claim 1 OCC raw material mthod of white water from paper making, it is characterized in that amylase effectively cuts off starch α-Isosorbide-5-Nitrae glycosidic bond in mthod of white water from paper making and becomes glucose.
3. according to the removal method of starch chaff interference in claim 1 OCC raw material mthod of white water from paper making, it is characterized in that going out the starch in the super pure water of multi-disc type filter with amylase enzymolysis.
4. according to the removal method of starch chaff interference in claim 1 OCC raw material mthod of white water from paper making, it is characterized in that the super pure water of multi-disc type filter need be warmed up to 50～65 ℃.
5. according to the removal method of starch chaff interference in claim 1 OCC raw material mthod of white water from paper making, it is characterized in that adding the amylase of amount of starch 0.01～0.001% in super pure water.
6. according to the removal method of starch chaff interference in claim 1 OCC raw material mthod of white water from paper making, it is characterized in that amylase enzymolysis time 1～2h.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310059308.9A CN104005250B (en) | 2013-02-26 | 2013-02-26 | The minimizing technology of starch chaff interference in a kind of OCC raw material mthod of white water from paper making |
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| CN201310059308.9A CN104005250B (en) | 2013-02-26 | 2013-02-26 | The minimizing technology of starch chaff interference in a kind of OCC raw material mthod of white water from paper making |
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| CN104005250A true CN104005250A (en) | 2014-08-27 |
| CN104005250B CN104005250B (en) | 2016-12-28 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106012642A (en) * | 2016-06-29 | 2016-10-12 | 南京林业大学 | Comprehensive utilization method of OCC paper pulp raw material papermaking white water |
| CN112064416A (en) * | 2020-09-04 | 2020-12-11 | 江苏好健康新材料有限公司 | Multifunctional kitchen odor-removing dust-free paper and manufacturing method thereof |
| CN112301780A (en) * | 2020-09-18 | 2021-02-02 | 江苏理文造纸有限公司 | Anionic garbage control process for papermaking system |
| CN114105402A (en) * | 2021-10-22 | 2022-03-01 | 江苏理文造纸有限公司 | Papermaking white water anion garbage control process |
| CN115772821A (en) * | 2022-12-05 | 2023-03-10 | 天津科技大学 | Method for recycling secondary starch in waste paper pulping white water and application |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106012642A (en) * | 2016-06-29 | 2016-10-12 | 南京林业大学 | Comprehensive utilization method of OCC paper pulp raw material papermaking white water |
| CN112064416A (en) * | 2020-09-04 | 2020-12-11 | 江苏好健康新材料有限公司 | Multifunctional kitchen odor-removing dust-free paper and manufacturing method thereof |
| CN112301780A (en) * | 2020-09-18 | 2021-02-02 | 江苏理文造纸有限公司 | Anionic garbage control process for papermaking system |
| CN114105402A (en) * | 2021-10-22 | 2022-03-01 | 江苏理文造纸有限公司 | Papermaking white water anion garbage control process |
| CN115772821A (en) * | 2022-12-05 | 2023-03-10 | 天津科技大学 | Method for recycling secondary starch in waste paper pulping white water and application |
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| Publication number | Publication date |
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| CN104005250B (en) | 2016-12-28 |
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Effective date of registration: 20180514 Address after: 223600 the northern side of Yinshan Road, the eastern side of the sponge plant in Shuyang County, Suqian, Jiangsu. Patentee after: Jiangsu Ningshu Paper Industry Co., Ltd. Address before: No. 159, dragon pan Road, Xuanwu District, Nanjing, Jiangsu Patentee before: Nanjing Forestry University |