CN101225615B - Method for producing low basis weight newsprint by 100 percent deinking waste pulp added with retention and drainage agent - Google Patents
Method for producing low basis weight newsprint by 100 percent deinking waste pulp added with retention and drainage agent Download PDFInfo
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- CN101225615B CN101225615B CN2008100256474A CN200810025647A CN101225615B CN 101225615 B CN101225615 B CN 101225615B CN 2008100256474 A CN2008100256474 A CN 2008100256474A CN 200810025647 A CN200810025647 A CN 200810025647A CN 101225615 B CN101225615 B CN 101225615B
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/64—Paper recycling
Abstract
The invention discloses a preparation method for low basis weight newsprint by using 100% de-inking waste paper pulp added with retention and filter aid, which comprises a plurality of steps: add 100% de-inking waste paper pulp into a proportioning tank of a high-speed paper machine; then add calcium carbonate and fixing cation modified polyamines; add starch at the entrance of a machine chest; use tray water to flush the pulp at the outlet of the machine chest; control the wite pulp concentration at 1.0%; after desanding and deaerating, add the retention aid cation water soluble macromolecule polyacrylamide derivative at the outlet of a sizing pump and the inlet of a vertical screen; add filter aid polyethylenimine at the outlet of the vertical screen; the pulp is sent into a head box of the high-speed paper machine; thus, the low basis weight newsprint can be produced. The preparation method for low basis weight newsprint by using 100% de-inking waste paper pulp added with retention and filter aid has the advantages that by adopting 100% de-inking waste paper pulp, the preparation method saves fiber material for making paper on the basis of changing the material structure of the newsprint, greatly reducing the consumption of timber, water and electricity and the emission of pollutant, relieving the environmental pollution and lowering the production cost.
Description
Technical field
The invention belongs to environmental protection and utilization of resources field, particularly a kind of employing 100% deinked pulp (DIP) adds the method for the low quantitative newsprint of retention and drainage aid agent production.
Background technology
Low quantitative newsprint belongs to international high-end product, especially adopts 100% deinking waste newsprint slurry (DIP) to produce low quantitative newsprint on high-speed paper machine, needs the interpolation retention and drainage aid agent to prevent the loss of fiber fines and filler in the slurry; Reduce the concentration of machine water, improve the mass dryness fraction that enters press section, reduce the steam consumption of drying section, improve the drainage speed of paper pulp, adapt to the operation of high-speed paper machine.
That at present, the newsprint of producing on high-speed paper machine at existing employing 100% deinking waste newsprint is common quantitatively is 47～49g/m
2, existing technology can only be with 85% deinked pulp (DIP), and 15% chip groundwood (TMP) is produced 47～49g/m
2Newsprint; Perhaps adopt deinked pulp (DIP) production 47～49g/m of 100%
2Newsprint; If produce low quantitative newsprint, often indexs such as opacity, tensile index and the tear index requirement that do not reach QUALITY STANDARD.
Summary of the invention
In order to solve above-mentioned the deficiencies in the prior art part, the object of the present invention is to provide a kind of utilize 100% deinked pulp (DIP) for raw material, add binary or ternary retention and drainage aid agent, on high-speed paper machine, produce the 45g/m that quality reaches and be better than GB/T 1910-2006 newsprint standard
2Low quantitative newsprint.
Purpose of the present invention is achieved through the following technical solutions: the method that a kind of employing 100% deinked pulp adds the low quantitative newsprint of retention and drainage aid agent production, it is characterized in that, adding the binary retention and drainage aid agent is retention agent cation type water-soluble polymer polyacrylamide derivative and filter aid polymine, and perhaps the ternary retention and drainage aid agent is promptly being decided the cation-modified polyamine of agent, retention agent cation type water-soluble polymer polyacrylamide derivative and filter aid polymine in paper pulp; In joining stock tank, add and deciding the cation-modified polyamine of agent, at import department's adding retention agent cation type water-soluble polymer polyacrylamide derivative of paper machine starching delivery side of pump, upright sieve; Outlet at upright sieve adds the filter aid polymine.
Above-mentioned employing 100% deinked pulp (DIP) adds the method for the low quantitative newsprint of retention and drainage aid agent production, comprise the steps: to add 100% deinked pulp (DIP) in joining in the stock tank of high-speed paper machine, what add the calcium carbonate of 1%～2% (to oven dry stock) and 0～400PPM then is deciding the cation-modified polyamine of agent; At the inlet of machine chest, add the starch of 4～8kg/t paper; Outlet at machine chest is dashed slurry with machine water, and online slurry concentration is controlled at 1.0%; After desander desanding, deaerator degasification, at the adding 100～300PPM of import department of starching delivery side of pump, upright sieve retention agent cation type water-soluble polymer polyacrylamide derivative; The filter aid polymine that adds 400～800PPM in the outlet of upright sieve; Paper pulp is sent to the flow box of high-speed paper machine, can produce to obtain low quantitative newsprint.
In order to realize the present invention better, described to decide the preferred addition of the cation-modified polyamine of agent be 100～200PPM.
Described cation-modified polyamine is Cationfast PR8154.
Described retention agent cation type water-soluble polymer polyacrylamide derivative is PolyminPR8193.
Described filter aid polymine is Polymin SK.
Described low quantitative newsprint is 45g/m
2Low quantitative newsprint.
Describedly deciding the cation-modified polyamine that agent Cationfast PR8154 is the high electric charge of a kind of low molecular weight, be added in and join stock tank, anionic trash in the slurry is anchored on the fiber, thereby the deposit in the minimizing system is significantly given full play to the effectiveness of follow-up auxiliary agent; Retention agent Polymin PR8193 is the cation type water-soluble polymer polyacrylamide derivative of the low electric charge of a kind of high molecular, be added in starching delivery side of pump, the import of upright sieve, make fiber fines by bridge formation mechanism, resin, coacervation things such as filler are adsorbed onto on the fiber surface; Filter aid Polymin SK is a kind of high molecular weight polyethyleneimine, be added in upright sieve outlet, in slurry system, form uniform micro-floccule, improve the drainability of slurry and the retention of fiber fines, raising enters the mass dryness fraction of press section page, thereby has reduced the consumption of drying section steam.
The present invention adds retention and drainage aid agent in 100% deinking waste newsprint slurry (DIP), the quality of production reaches and be better than the 45g/m of GB/T1910-2006 newsprint standard on high-speed paper machine
2Low quantitative newsprint.
The present invention compared with prior art has following advantage and beneficial effect:
1, adopts 100% deinked pulp (DIP) to make raw material, produce and reach GB GB1910-2006 high-class product.Adopt 100% deinked pulp (DIP); On the basis that changes the newsprint raw material mix, save raw material of papermaking fiber, also newsprint can be produced without timber, and forest, water, electric consumption and pollutant emission can be significantly reduced, alleviate environmental pollution, reduce production costs; Low quantitative 45g/m
2Newsprint compare 49g/m
2Newsprint increased by 8% printing area.
2, the present invention adopts binary or ternary retention aid and filtering aid system, the 45g/m that the kind of its auxiliary agent, addition and interpolation point are produced
2Low quantitative newsprint, its machine water concentration is 0.37%, is generally 0.45%～0.65% than its machine water concentration of existing technology and has reduced by 18%～43%.Meanwhile, improved DIP freedom, shorten drying time, improved the web dryness that enters press section, reduced the consumption of steam.
3, adopt binary retention aid and filtering aid system, lack than ternary retention aid and filtering aid system and used a kind of agent of deciding, reach GB GB1910-2006 high-class product 45g/m can producing equally
2Hang down under the prerequisite of quantitative newsprint, saved production cost, reduced the operating cost of producing.
Description of drawings
Fig. 1 is a process chart of the present invention.
Fig. 2 is another process chart of the present invention.
The specific embodiment
The present invention is described in further detail below in conjunction with embodiment and accompanying drawing, but embodiments of the present invention are not limited thereto.
Embodiment 1
As shown in Figure 1, adopt 100% deinked pulp (DIP) to add the method for the low quantitative newsprint of ternary retention and drainage aid agent production, comprise the steps:
The high-speed paper machine that the present invention adopts is in the pulp feeding system of Metso OptiConcept horizontal twin wire paper machine (1400 meters/minute of fabric width 5300mm, the clean wide 4800mm of paper, the speed of a motor vehicle), forms by joining stock tank, machine chest, desander, deaerator, starching pump, upright sieve, these equipment of flow box; In joining stock tank, add 100% (mass percent) deinked pulp (DIP), and then add the calcium carbonate of 1.5% (to oven dry stock) and 400PPM deciding agent Cationfast PR8154 (producing) by German BASF AG, at the inlet of machine chest, add the starch of 6kg/t paper; Outlet at machine chest is dashed slurry with machine water, and online slurry concentration is controlled at 1.0%; After desander desanding, deaerator degasification, at the adding 200PPM of the import department retention agent Polymin PR8193 (producing) of starching delivery side of pump, upright sieve by German BASF AG; The filter aid Polymin SK (producing) that adds 600PPM in the outlet of upright sieve by German BASF AG; Paper pulp is sent to the flow box of high-speed paper machine.Can produce and obtain 45g/m
2Low quantitative newsprint.Take a sample on producing and detect, the quality of finished paper index reaches and above the GB/T1910-2006 standard.Wherein online slurry creation data and become that every quality index of paper sees Table 1, table 2.
Table 1 online slurry test data
| Sample number | PCD | Zate | #1 white water consistency % | #2 white water consistency % | Online slurry concentration % | Keep % |
| Embodiment 1 | -201 | -25.1 | 0.37 | 0.39 | 0.95 | 59.58 |
| Embodiment 2 | -175 | -18.6 | 0.37 | 0.38 | 0.96 | 60.73 |
Table 2 becomes every quality index of paper
Embodiment 2
As shown in Figure 1, adopt 100% deinked pulp (DIP) to add the method for the low quantitative newsprint of ternary retention and drainage aid agent production, comprise the steps:
High-speed paper machine join that 100% in the stock tank (mass percent) deinked pulp (DIP) adds the calcium carbonate of 1% (to oven dry stock) and 100PPM deciding the cation-modified polyamine CationfastPR8154 of agent, at the inlet of machine chest, add the starch of 4kg/t paper; Outlet at machine chest is dashed slurry with machine water, and online slurry concentration is controlled at 1.0%; After desander desanding, deaerator degasification, at the adding 100PPM of import department of starching delivery side of pump, upright sieve retention agent cation type water-soluble polymer polyacrylamide derivative Polymin PR8193; The filter aid polymine Polymin SK that adds 400PPM in the outlet of upright sieve; Paper pulp is sent to the flow box of high-speed paper machine, can produce to obtain 45g/m
2Low quantitative newsprint.Take a sample on producing and detect, the quality of finished paper index reaches and above the GB/T1910-2006 standard.Wherein online slurry test data and become that every quality index of paper sees Table 1, table 2.
Table 3 online slurry test data
| Sample number | PCD | Zate | #1 white water consistency % | #2 white water consistency % | Online slurry concentration % | Keep % |
| 1# | -211 | -23.2 | 0.36 | 0.38 | 0.98 | 57.67 |
| 2# | -185 | -17.3 | 0.35 | 0.37 | 0.97 | 59.38 |
Table 4 becomes every quality index of paper
Embodiment 3
As shown in Figure 2, adopt 100% deinked pulp (DIP) to add the method for the low quantitative newsprint of binary retention and drainage aid agent production, comprise the steps:
The calcium carbonate that 100% in the stock tank (mass percent) deinked pulp (DIP) adds 2% (to oven dry stock) of joining at high-speed paper machine at the inlet of machine chest, adds the starch of 8kg/t paper; Outlet at machine chest is dashed slurry with machine water, and online slurry concentration is controlled at 1.0%; After desander desanding, deaerator degasification, at the adding 300PPM of import department of starching delivery side of pump, upright sieve retention agent cation type water-soluble polymer polyacrylamide derivative Polymin PR8193; The filter aid polymine Polymin SK that adds 800PPM in the outlet of upright sieve; Paper pulp is sent to the flow box of high-speed paper machine, can produce to obtain 45g/m
2Low quantitative newsprint.The quality index of this newsprint such as table 3, table 4.
The foregoing description is a preferred implementation of the present invention; but embodiments of the present invention are not restricted to the described embodiments; other any do not deviate from change, the modification done under spiritual essence of the present invention and the principle, substitutes, combination, simplify; all should be the substitute mode of equivalence, be included within protection scope of the present invention.
Claims (5)
1. one kind is adopted 100% deinked pulp to add the method that quantitative newsprint is hanged down in retention and drainage aid agent production, it is characterized in that, adding the binary retention and drainage aid agent is retention agent cation type water-soluble polymer polyacrylamide and filter aid polymine, and perhaps the ternary retention and drainage aid agent is promptly being decided the cation-modified polyamine of agent, retention agent cation type water-soluble polymer polyacrylamide and filter aid polymine in paper pulp; Import department at paper machine starching delivery side of pump, upright sieve adds retention agent cation type water-soluble polymer polyacrylamide; Outlet at upright sieve adds the filter aid polymine; Choose wantonly in joining stock tank, to add and deciding the cation-modified polyamine of agent;
Described low quantitative newsprint is 45g/m
2Low quantitative newsprint.
2. the method that a kind of employing 100% deinked pulp according to claim 1 adds the low quantitative newsprint of retention and drainage aid agent production comprises the steps:
Add 100% deinked pulp in joining in the stock tank of high-speed paper machine, what add 1%～2% calcium carbonate and 0～400ppm then is deciding the cation-modified polyamine of agent; At the inlet of machine chest, add the starch of 4～8kg/t paper; Outlet at machine chest is dashed slurry with machine water, and online slurry concentration is controlled at 1.0%; After desander desanding, deaerator degasification, at the adding 100～300ppm of import department of starching delivery side of pump, upright sieve retention agent cation type water-soluble polymer polyacrylamide; The filter aid polymine that adds 400～800ppm in the outlet of upright sieve; Slurry is sent to the flow box of high-speed paper machine, can produce to obtain low quantitative newsprint.
3. a kind of employing 100% deinked pulp according to claim 2 adds the method for the low quantitative newsprint of retention and drainage aid agent production, it is characterized in that: described to decide the cation-modified polyamine addition of agent be 100～200ppm.
4. the method that a kind of employing 100% deinked pulp according to claim 2 adds the low quantitative newsprint of retention and drainage aid agent production, it is characterized in that: described retention agent cation type water-soluble polymer polyacrylamide is Polymin PR8193.
5. the method that a kind of employing 100% deinked pulp according to claim 2 adds the low quantitative newsprint of retention and drainage aid agent production, it is characterized in that: described filter aid polymine is Polymin SK.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2008100256474A CN101225615B (en) | 2008-01-04 | 2008-01-04 | Method for producing low basis weight newsprint by 100 percent deinking waste pulp added with retention and drainage agent |
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| CN101225615B true CN101225615B (en) | 2010-09-01 |
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| FI20085969L (en) * | 2008-10-15 | 2010-04-16 | Kautar Oy | Acidic water and its use for removal of water or separation of suspended matter |
| CN101806017B (en) * | 2010-04-07 | 2012-04-18 | 浙江凯恩特种材料股份有限公司 | Dual-direction combination-type papermaking enhancing process and device |
| CN102242522B (en) * | 2010-04-07 | 2012-07-25 | 浙江凯丰纸业有限公司 | Device used for bidirectional combined papermaking enhancing process |
| CN102002889A (en) * | 2010-10-29 | 2011-04-06 | 天津市奥东化工有限公司 | Special anion garbage capturing agent for paper making |
| CN102154934B (en) * | 2010-12-31 | 2012-08-01 | 中冶纸业银河有限公司 | Novel retention and filtration aid system for light paper |
| CN109594401A (en) * | 2018-12-25 | 2019-04-09 | 山东华泰纸业股份有限公司 | A kind of production technology using low-quality waste paper production high-quality newsprint |
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