CN104947490A - Regeneration method of special wastepaper and application of regenerated special wastepaper - Google Patents
Regeneration method of special wastepaper and application of regenerated special wastepaper Download PDFInfo
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- CN104947490A CN104947490A CN201410111917.9A CN201410111917A CN104947490A CN 104947490 A CN104947490 A CN 104947490A CN 201410111917 A CN201410111917 A CN 201410111917A CN 104947490 A CN104947490 A CN 104947490A
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- waste paper
- deinking
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- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
- D21C5/00—Other processes for obtaining cellulose, e.g. cooking cotton linters ; Processes characterised by the choice of cellulose-containing starting materials
- D21C5/02—Working-up waste paper
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21B—FIBROUS RAW MATERIALS OR THEIR MECHANICAL TREATMENT
- D21B1/00—Fibrous raw materials or their mechanical treatment
- D21B1/04—Fibrous raw materials or their mechanical treatment by dividing raw materials into small particles, e.g. fibres
- D21B1/12—Fibrous raw materials or their mechanical treatment by dividing raw materials into small particles, e.g. fibres by wet methods, by the use of steam
- D21B1/30—Defibrating by other means
- D21B1/34—Kneading or mixing; Pulpers
- D21B1/345—Pulpers
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
- D21C5/00—Other processes for obtaining cellulose, e.g. cooking cotton linters ; Processes characterised by the choice of cellulose-containing starting materials
- D21C5/02—Working-up waste paper
- D21C5/025—De-inking
- D21C5/027—Chemicals therefor
-
- 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
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21D—TREATMENT OF THE MATERIALS BEFORE PASSING TO THE PAPER-MAKING MACHINE
- D21D5/00—Purification of the pulp suspension by mechanical means; Apparatus therefor
- D21D5/02—Straining or screening the pulp
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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
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- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Wood Science & Technology (AREA)
- Health & Medical Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Toxicology (AREA)
- Paper (AREA)
Abstract
The invention discloses a regeneration method of special wastepaper. The regeneration method comprises the steps of performing soaking deinking, sieving for liquid removal or/and normal-temperature pulping on the special wastepaper, and then performing optional sieving and water washing, strong grinding, sieving for impurity removal, or/and sieving and rewashing, or/and adding water for thickening and screen hydration, thereby obtaining regenerated paper pulp or regenerated paper. The regeneration method of the special wastepaper which includes Renminbi paper and air filter paper and has the characteristics of wet strength, difficult separation, difficult deinking, high impurity content and unsuitability for high-temperature hot water crushing and grinding is advantageous for resource recycling.
Description
Technical field
The invention belongs to the technical field that waste paper regenerated middle special type is waste paper regenerated, relate to strong, the difficult separation of a kind of high humidity, difficult deinking, high and unsuitable high-temperature-hot-water is broken containing mixing, the extraordinary waste paper of defibrination---the application of renovation process of useless RMB paper or air filter paper and products thereof.
Background technology
Waste paper regenerated preparation, regeneration paper pulp is the important basic industry of the first in the world Hao Zhi big country that this paper grade pulp raw material mix of China is rare, is the important industry node of paper industrial chain Implementing Circular Economy.Common newsprint or the regeneration of wrapping paper, the regeneration technology route flow process usually adopted according to the order of sequence: common mixed paper waste, through entering the processing step such as water, pulping, screening, concentrated, defibrination, online copy paper, obtains regenerated paper pulp or and recycled writing paper, recycled writing paper dregs of rice product.But this technique be not suitable for have strong, difficult separations of high humidity, difficult deinking, containing assorted high and should not the regeneration of extraordinary waste paper of broken, the defibrination of high-temperature-hot-water.
Production practices according to Jia Long Paper Co., Ltd find, have at least the extraordinary waste paper of following kind to be difficult to regenerate by traditional handicraft:
Regenerate as useless RMB paper can occur by the technique of conventional regeneration Produce Newsprint or wrapping paper: 1. fiber separation difficulty; 2. deinking difficulty, product whiteness is low; 3. after contacting the hot water of more than 60 DEG C, the auxiliary components such as the bonding of stripping in bank note can make intermediate circulating water be clamminess, and the precipitation recycle difficulty of water, if outer row can pollute; 4. the wire in useless RMB paper is broken into numerous dust point class impurity, this type of impurity removal difficulty after broken, defibrination.
In addition, can occur with the paper product trimming material that the technique of conventional regeneration Produce Newsprint or wrapping paper regenerates as air filter paper: material is after broken, defibrination, the fibre separation index that product is usually required can not be reached, the beating degree required by copy paper technique cannot be met; Deinking difficulty, containing assorted high.
The annual growing amount of useless RMB paper China is about more than 20,000 tons, and the paper product trimming material of various filter paper, only just has more than 1 ten thousand tons every year in Zhejiang area, and these waste paper resources to be regenerated are burnt at present in vain.
Detect from network at present, China has useless coin paper recycling approach: with bits of waste paper money Production and Packaging case, as CN1282819 discloses a kind of method of bits of waste paper money Production and Packaging case, it adds appropriate pollopas adhesive, paraffin emulsifier, ammonium chloride curing agent after being pulverized by useless coin, mixed material extrusion forming in box-shaped mould, mould electromagnetic medium radiation heating.It is sturdy and durable that inventor introduces its obtained packing case, moistureproof attractive in appearance, nontoxic, pollution-free.This kind of packing case can be used for print paper money industry and banking system uses as Turnover Box.CN1282819 does not mention how by waste paper coin regeneration paper pulp.
In addition, also detect from network, have one section the research of slurrying " wet-strength paper again ", its network address is:
(http://news.pack.cn/hydt/market/2004-08/2004081410072485.shtml) and (http://news.pack.cn/hydt/market/2004-08/2004081410204958.shtml), this literary composition proposes:
When 1, adopting potassium peroxydisulfate method to useless coin regeneration slurrying, suitable Pulping conditions is: potassium peroxydisulfate consumption 6%, acid, alkali treatment pH value 11, processing time 70min, slurrying temperature 70 C, under slurrying concentration 13% condition, best to the whiteness of useless coin slurrying pulping again, brisement reaches maximum, and screening reject rate is minimum simultaneously;
When 2, adopting aluminum sulfate method to useless coin regeneration slurrying, suitable Pulping conditions is: addition of aluminum sulfate is 7%, faintly acid, processing time 100min slurrying temperature 70 C, starches dense 13% condition, best to the whiteness of useless coin slurrying pulping again, brisement reaches maximum, and screening reject rate is minimum simultaneously.But the processing and utilizing problem of the water that is clamminess how generated in temperature 70 C process do not mentioned in this literary composition.
In addition, numerous and diverse field is developed because current paper industry technology has been one, the Chinese patent literature of relevant technologies progress is vast as the open sea, add industrializing implementation and will drop into huge manpower, financial resources, those of ordinary skill in the art is caused to can't come round to the idea creative work, the substance realizing being different from prior art improves, even if be only the complementary combinations utilizing existing technical literature, also be very difficult, so in the art, the various patents application of annual proposition, many seeming is the simple combination on prior art basis, all contained numerous intelligence in fact, financial resources and carry a large amount of creative work of economy and environment risk.
Summary of the invention
For the defect of prior art, the object of this invention is to provide and a kind ofly at least comprise RMB paper, air filter paper, there is strong high, difficult separation of wetting, difficult deinking, high and unsuitable high-temperature-hot-water is broken containing mixing, the renovation process of the extraordinary waste paper of defibrination feature, is beneficial to the recycle of resource.
Another object of the present invention is to provide a kind of purposes of the product prepared by said method.
Design of the present invention is:
1, to soak at normal temperatures deinking, adopt containing high-strength penetrating solvent, highly basic emulsification, prevent deinked fiber from dyeing again and there is the deinking agent of bleaching agent composition institute prescription of oxidation, reducibility, at room temperature not only realized powerful deinking object but also do not made heat water in paper be clamminess the water circulation in the composition obstruction technique of dissolving.
2, adopt high dense mill or/and pipeline high-speed rotary cutter, implement powerful defibrination or/and powerful meticulous pulping.
3, intensive filtration.
Technical scheme of the present invention is as follows:
The invention provides a kind of renovation process of extraordinary waste paper, comprise the following steps:
By extraordinary waste paper through soaking deinking step, de-liquid step of sieving or/and normal temperature pulping step process, and then carry out, or/and the water-washing step that sieves, powerful refining step, removing impurities of sieving step wash step or/and add water thicken step, online dehydration again or/and sieve, obtaining regenerated paper pulp or recycled writing paper.
Described extraordinary waste paper is useless RMB paper or the one containing chemical fibre matter air filter paper paper products trimming material and its waster.
Described immersion deinking step comprises the following steps: under agitation extraordinary waste paper and deinking chemicals are dropped in fermentation vat and carry out soak at room temperature deinking, extraordinary waste paper with the mass ratio containing mass percent being the deinking chemicals of 3 ~ 5% aquas is: be 1000:(1800 ~ 2500 by the weight ratio of over dry waste paper and deinking chemicals), soak time is 5 ~ 16 hours.
The temperature of described normal temperature is 0 ~ 35 DEG C.
Described deinking chemicals is caustic soda NaOH, sodium metasilicate Na
2onSiO
2, gasoline C
4h
10~ C
12h
26, oxydol H
2o
2the mass percent that is made into of one or more combination be the aqua of 3 ~ 5%; The better dosage scope of described deinking chemicals wherein each kind of medicament component and over dry waste paper per ton is 20 ~ 30kg/T that the dosage of caustic soda NaOH accounts for over dry waste paper dosage, sodium metasilicate Na
2onSiO
2dosage account for 12 ~ 25kg/T of over dry waste paper dosage, gasoline C
4h
10~ C
12h
26dosage account for 25 ~ 30L/T of over dry waste paper dosage, oxydol H
2o
2dosage account for 4 ~ 15kg/T of over dry waste paper dosage.
Described de-liquid step of sieving comprises the following steps: be import a turn sieve by through soaking the material after deinking step process, sieve material by gravity or by rotary centrifugal force effect, drench de-or revolve and remove institute in material and carry the deinking liquid of black matter precipitation, obtaining the wet sheet of solid content 15 ~ 50% or/and l Water Paper considers material to be worth doing; Or turn while sieve removes liquid crossing, then to sieve material with the water purification drip washing coming from intercycle water purifying tank; Drench from sieve the liquid taken off and be imported into black matter circulating sedimentation tank, the supernatant liquor of sedimentation basin is led back to be soaked in deinking step fermentation vat used, or leads back in the incidental deinking chemicals dosing chamber of fermentation vat, and adds deinking chemicals and appropriate water again; The black matter precipitation slag mud of concentration filter gained from black matter circulating sedimentation tank, after remaking harmless treatment, makes Nutrition Soil and utilizes.
Described normal temperature pulping step comprises the following steps: by the wet sheet of gained after de-liquid process of sieving or/and l Water Paper bits material imports pulper, and wet sheet after going out machine is or/and l Water Paper bits material becomes crude pulp; While pulper carries out pulping processing, then in pulper, add the water purification coming from intercycle water purifying tank, wash by the material just at pulping, synchronously again the water outlet in pulper is imported intercycle water purifying tank, make precipitation purified treatment.
The described water-washing step that sieves comprises the following steps: imported by the crude pulp of gained after the process of normal temperature pulping and turn sieve, by Action of Gravity Field, drenches and to remove in material the rare liquid of deinking that institute carries black matter precipitation, and obtaining solid content is 15 ~ 50% wetly slightly to starch; Or while slightly starching and turning sieve, then to sieve material with the water purification drip washing coming from intercycle water purifying tank; Drench the rare liquid water of the deinking of taking off from sieve and import intercycle water purifying tank, make precipitation purified treatment.
Described powerful refining step comprises the following steps: the wet thick slurry of the rear gained of washing process that sieves is imported high concentration plate mill and carries out high consistency refining, what obtain beating degree 25 ~ 55 ° of SR contains assorted dispersate paper pulp; Or/and adopt pipeline high-speed rotary cutter machine again, carry out powerful defibrination and the meticulous pulping of brute force.
Described removing impurities step of sieving comprises the following steps: the impure dispersate paper pulp of gained after powerful defibrination process being crossed aperture is that the pressurized screen of 10 ~ 35 μm carries out removing impurities, obtain the fine screen paper pulp that concentration is 0.3 ~ 0.5%, the dust point impurity that its diameter of the paper be copied into this paper pulp is less than below 1mm is no more than 500/m
2.
Described sieving is washed step again and is comprised the following steps: imported by the turbid liquid of the fine screen paper pulp of gained after removing impurities process of sieving and turn sieve, sieve material by gravity or/and by rotary centrifugal force effect, drench de-or/and revolve the water liquid removing and carry in material, obtain the turbid liquid that solid content is the clean paper pulp of essence of 3 ~ 5%.
Described de-liquid step of sieving, the water-washing step that sieves, removing impurities of sieving step, turn sieve washed again in step that sieves are cross sections is that turning of six seamed edges is sieved.
Described adding water thickens step and comprises the following steps: wash process again by sieving after the clean paper pulp of essence of gained add water furnishing solid content be 2 ~ 5% paper pulp turbid liquid.
Described online dehydration comprises the following steps: the paper pulp turbid liquid being 2 ~ 5% by gained solid content after the adjustment concentration process that adds water carries out online copy paper or claims papermaking, realize being separated of paper pulp fiber and water, be dehydrated into the wet commodity regenerated paper pulp that moisture is 30 ~ 50%; Maybe the clean paper pulp of essence be copied into of surfing the Net is crossed steam cylinder direct drying, obtain recycled writing paper or recycled writing paper pulp that moisture is 7 ~ 15%.
The invention provides the regenerated paper pulp purposes that said method prepares at least to comprise: mix its copy whiteness processed be 60 ~ 80 cultural paper, pulling force is at the kraft wrapping of more than 4kN/m, film coated base paper or compound braided bag body paper.
The present invention compared with the existing technology, has the following advantages and beneficial effect:
1, the present invention and conventional regeneration method are with compared with the hot water of more than 60 DEG C, have intermediate circulating water and can not to be clamminess and without the need to by the advantage that can heat, and this advantage is convenient to the precipitation recycle of intermediate circulating water and energy-conservation.
2, the effect of acid and alkali in immersion treatment of the present invention, avoids equipment acid corrosion.
3, pulping of the present invention is separated good, aperture crossed by impure dispersate paper pulp is after the pressurized screen of 10 ~ 35 μm, the fine screen paper pulp turbid liquid of gained, the pure pulp that is copied into of surfing the Net, dust point impurity content can control the dust point impurity number≤10/m being less than below 1mm at diameter
2.
Accompanying drawing explanation
Fig. 1 is the process chart of the renovation process of extraordinary waste paper shown in embodiment.
Detailed description of the invention
Below in conjunction with embodiment shown in the drawings, the present invention is further illustrated.
Embodiment 1
Get a kind of have strong, the resistance to deinking of high humidity, defibrination feature broken containing assorted high and unsuitable high-temperature-hot-water extraordinary waste paper---useless 10 tons, RMB paper, as shown in Figure 1, Fig. 1 is the process chart of the renovation process of extraordinary waste paper shown in embodiment.Be implemented as follows step regeneration according to the order of sequence, specifically:
The first step: soak deinking step: the RMB paper that given up by 10 tons of extraordinary waste paper is placed in a 60m
3implement the process of soak at room temperature deinking chemicals in fermentation vat, useless RMB paper stock throws in fermentation vat that soak time is at 8 hours, and normal temperature refers to the room temperature of 0 ~ 35 DEG C, arranges a mechanical agitation in fermentation vat.
The mass percent that described deinking chemicals is caustic soda, one or more combination of sodium metasilicate, gasoline, hydrogen peroxide is made into is the aqua of 3 ~ 5%; The various medicament component of described deinking chemicals and the better dosage scope of over dry waste paper per ton are: the dosage of caustic soda NaOH accounts for 20kg/T or 25kg/T or the 30kg/T of over dry waste paper dosage, sodium metasilicate Na
2onSiO
2dosage account for 12kg/T or 20kg/T or the 25kg/T of over dry waste paper dosage, gasoline C
4h
10~ C
12h
26dosage account for 25L/T or 30L/T of over dry waste paper dosage, oxydol H
2o
2dosage account for 4kg/T or 10kg/T or the 15kg/T of over dry waste paper dosage.The process of described enforcement soak at room temperature deinking chemicals its to feed intake by over dry waste paper and deinking chemicals weight ratio be 1000:1800 or 1000:2500.
Second step: de-liquid step of sieving, material after first step process is imported and turns sieve, described turn of sieve can be cross section be six seamed edges turn sieve, sieve material by gravity or/and by rotary centrifugal force effect, drench de-or/and revolve and remove institute in material and carry the dense liquid of a large amount of deinkings of black matter precipitation, obtain solid content 30% or to 45% wet sheet or/and l Water Paper considers material to be worth doing; Or turn while sieve removes liquid crossing, then with coming from the water purification of intercycle water purifying tank, drip washing is sieved material; Be imported into black matter sedimentation basin from the liquid taken off of sieve pouring, the supernatant liquor of sedimentation basin is led back in fermentation vat described in the first step, and recruits deinking chemicals and appropriate water again in fermentation vat; From the black matter precipitation slag mud of black matter sedimentation basin concentration filter gained and from intercycle water purifying tank the precipitation of gained, obtain the Nutrition Soil making plant utilization after remaking the harmless treatment comprised for dealing with earthworm;
Or/and the 3rd step: normal temperature pulping step, by the solid content 30% of gained after second step process or to 45% wet sheet or/and l Water Paper bits material import pulper, wet sheet after going out machine or/and l Water Paper bits material become the pulpy crude pulp accompanying paper scrap; While pulping processing implemented by pulper, then in pulper, add the water purification coming from intercycle water purifying tank, to being implemented washing further by the material just at pulping, synchronously again the water outlet in pulper is imported intercycle water purifying tank, make precipitation purified treatment;
Or/and the 4th step: sieve water-washing step, the crude pulp of gained after the 3rd step process is imported and turns sieve, drenched by Action of Gravity Field and to remove in material institute and carry the rare liquid of a large amount of deinkings that black matter precipitates, obtain solid content 30% or the wet crude pulp to 45%; Or while crude pulp is crossed and turned sieve, then to sieve material with the water purification drip washing coming from intercycle water purifying tank; Import intercycle water purifying tank by drenching the rare liquid water of a large amount of deinkings of taking off from sieve, make precipitation purified treatment;
5th step: powerful refining step, imports disc mill by the wet crude pulp of gained after the 4th step process and implements high consistency refining, obtain beating degree 35 ° of SR or/and have resemble the flour matter dust points such as wire containing assorted dispersate paper pulp;
6th step: removing impurities of sieving step, the impure dispersate paper pulp of gained after the 5th step process is crossed the pressurized screen of aperture 10 μm or 25 μm or 35 μm scopes, implement removing impurities, obtain the fine screen paper pulp that concentration is 0.3 ~ 0.5%, the dust point impurity that its diameter of the paper be copied into this paper pulp is less than below 1mm is no more than 10/m
2.
Or/and the 7th step: sieve and wash step again, the turbid liquid of the fine screen paper pulp of gained after the 6th step process is imported and turns sieve, sieve material by gravity or/and by rotary centrifugal force effect, drench de-or/and revolve to remove in material carry the water liquid of a large amount of poles light color, obtain the turbid liquid of the clean regenerated paper pulp of essence of solid content 3% or 4% or 5%;
Or/and the 8th step: add water and thicken step, the paper pulp turbid liquid of furnishing solid content 3% that the turbid liquid of the clean regenerated paper pulp of essence of gained after the 7th step process is added water;
9th step: online dehydration, by copy paper net on the paper pulp turbid liquid of the solid content 3% of gained after the 8th step process, is dehydrated into moisture
30% or 40% or
50%wet commodity regenerated paper pulp; Maybe by the copy paper of online or become that the paper pulp dregs of rice are further crosses steam cylinder, obtain moisture 7% or 9% or 15% dry recycled writing paper or recycled writing paper pulp; Described wet commodity regenerated paper pulp, dry recycled writing paper or recycled writing paper pulp are the final products of the present embodiment, and product yield counts 95 ~ 99% by over dry, and lost part is made into the Nutrition Soil of by-product.
According to different material and finished product, 5th step described in the present embodiment can require that carrying out step selects to the 9th step.
The regenerated paper pulp that the present invention is prepared by said method, its purposes at least comprises: can by mix adapted as whiteness be 60 ~ 80 cultural paper, pulling force is at the kraft wrapping of more than 4kN/m, film coated base paper or compound braided bag body paper.
Embodiment 2
There is the extraordinary waste paper of strong, the resistance to deinking feature of high humidity---containing a chemical fibre matter air filter paper paper products trimming material, implement regeneration as follows, specifically:
The first step: soak deinking step, 8 tons of chemical fibre matter air filter paper paper products trimming material are placed in a 60m
3the process of soak at room temperature deinking chemicals is implemented in fermentation vat, implement the process of soak at room temperature deinking chemicals, it feeds intake by the kg weight ratio of the extraordinary waste paper of over dry and deinking chemicals is that 1000:2000 or 1000:2500 feeds intake in fermentation vat, soak time is at 10 hours, described normal temperature refers to the room temperature of 0 ~ 35 DEG C, arranges a mechanical agitation in fermentation vat;
Second step: de-liquid step of sieving, material after first step process is imported and turns sieve, described turn of sieve can be cross section be six seamed edges turn sieve, sieve material by gravity or/and by rotary centrifugal force effect, drench de-or/and revolve and remove institute in material and carry the dense liquid of a large amount of deinkings of black matter precipitation, obtain the wet sheet of solid content 30% or 50% or/and l Water Paper considers material to be worth doing; Or turn while sieve removes liquid crossing, then with coming from the water purification of intercycle water purifying tank, drip washing is sieved material; Be imported into black matter sedimentation basin from the liquid taken off of sieve pouring, the supernatant liquor of sedimentation basin is led back in fermentation vat described in the first step, or the incidental Chu Chizhong containing deinking chemicals of fermentation vat, and recruits and add deinking chemicals and appropriate water; From black matter sedimentation basin concentration filter gained black matter precipitation slag mud and from intercycle water purifying tank the precipitation of gained, after remaking the harmless treatment comprised for dealing with earthworm, obtain the Nutrition Soil making plant utilization;
3rd step: normal temperature pulping step, by the wet sheet of the solid content 30% or 50% of gained after second step process or/and l Water Paper bits material imports pulper, wet sheet after going out machine is or/and l Water Paper bits material becomes the pulpy crude pulp accompanying paper scrap; While pulping processing implemented by pulper, then in pulper, add the water purification coming from intercycle water purifying tank, to being implemented washing further by the material just at pulping, synchronously again the water outlet in pulper is imported intercycle water purifying tank, make precipitation purified treatment;
4th step: sieve water-washing step, imports the crude pulp of gained after the 3rd step process and turns sieve, by Action of Gravity Field, drenches and to remove in material institute and carry a large amount of deinking alkene liquids that black matter precipitates, obtain solid content 30% or the wet crude pulp to 50%; Or while crude pulp is crossed and turned sieve, then to sieve material with the water purification drip washing coming from intercycle water purifying tank; Drench from sieve the rare liquid water of a large amount of deinkings taken off by this step, import intercycle water purifying tank, make precipitation purified treatment;
5th step: powerful refining step, the wet crude pulp of gained after the 4th step process is imported disc mill and implements high consistency refining, go out machine material and be imported into pipeline high-speed rotary cutter machine again, implement powerful defibrination and force meticulous pulping, obtain beating degree 25 ° of SR or ~ 45 ° SR and slightly containing non-fibrous dust point containing dispersate paper pulp of mixing;
6th step: removing impurities of sieving step, crosses the pressurized screen of aperture 10 μm or 35 μm scopes by the impure dispersate paper pulp of gained after the 5th step process, implements removing impurities, obtains the dust point impurity number ≈ 5/dm being less than 1mm containing diameter
2the turbid liquid of 0.4% or 0.5% fine screen paper pulp of paper;
7th step: sieve and wash step again, the turbid liquid of the fine screen paper pulp of gained after the 6th step process is imported and turns sieve, sieve material by gravity or/and by rotary centrifugal force effect, drench de-or/and revolve to remove in material carry the water liquid of a large amount of poles light color, obtain the turbid liquid of the clean regenerated paper pulp of essence of solid content 4% or 5%;
8th step: add water and thicken step, the paper pulp turbid liquid of furnishing solid content 2% or 5% that the clean regenerated paper pulp of essence of gained after mistake the 7th step process is added water;
9th step: online dehydration, by copy paper net on the paper pulp turbid liquid of the solid content 2% or 5% of gained after mistake the 8th step process, is dehydrated into the wet commodity regenerated paper pulp of moisture 30% or 50%.
Described deinking chemicals caustic soda NaOH as described below, sodium metasilicate Na
2onSiO
2, oxydol H
2o
2be made into the aqua that percentage by weight is 3% or 4% or 5%:
Caustic soda NaOH dosage, the weighing scale by pure NaOH: 20kg/T or 25kg/T or 30kg/T over dry waste paper,
Sodium metasilicate Na
2oSiO
2by pure Na
2oSiO
2weighing scale: 12kg/T or 18kg/T or 25kg/T over dry waste paper,
Oxydol H
2o
2by pure H
2o
2weighing scale: 4kg/T or 7kg/T or 10kg/T over dry waste paper.
Above-mentioned is can understand and apply the invention for ease of those skilled in the art to the description of embodiment.Person skilled in the art obviously easily can make various amendment to these embodiments, and need not through performing creative labour illustrating the embodiment of General Principle application to be converted in other embodiments at this.Therefore, the invention is not restricted to embodiment here, those skilled in the art, according to announcement of the present invention, are not departing from improvement that scope makes and amendment all should within protection scope of the present invention.
Claims (14)
1. the renovation process of an extraordinary waste paper, it is characterized in that: comprise the following steps: by extraordinary waste paper through soaking deinking step, de-liquid step of sieving or/and normal temperature pulping step process, and then carry out, or/and the water-washing step that sieves, powerful refining step, removing impurities of sieving step wash step or/and add water thicken step, online dehydration again or/and sieve, obtaining regenerated paper pulp or recycled writing paper.
2. the renovation process of extraordinary waste paper according to claim 1, is characterized in that: described extraordinary waste paper is useless RMB paper or the one containing chemical fibre matter air filter paper paper products trimming material and its waster.
3. the renovation process of extraordinary waste paper according to claim 1, it is characterized in that: described immersion deinking step comprises the following steps: under agitation extraordinary waste paper and deinking chemicals are dropped in fermentation vat and carry out soak at room temperature deinking, extraordinary waste paper with the mass ratio containing mass percent being the deinking chemicals of 3 ~ 5% aquas is: be 1000:(1800 ~ 2500 by the weight ratio of over dry waste paper and deinking chemicals), soak time is 5 ~ 16 hours.
4. the renovation process of extraordinary waste paper according to claim 3, is characterized in that: the temperature of described normal temperature is 0 ~ 35 DEG C;
Or described deinking chemicals be caustic soda, the mass percent that is made into of one or more combination of sodium metasilicate, gasoline, hydrogen peroxide is the aqua of 3 ~ 5%; The dosage scope of described deinking chemicals wherein each kind of medicament component and over dry waste paper per ton is 20 ~ 30kg/T that the dosage of caustic soda accounts for over dry waste paper dosage, the dosage of sodium metasilicate accounts for 12 ~ 25kg/T of over dry waste paper dosage, the dosage of gasoline accounts for 25 ~ 30L/T of over dry waste paper dosage, and the dosage of hydrogen peroxide accounts for 4 ~ 15kg/T of over dry waste paper dosage.
5. the renovation process of extraordinary waste paper according to claim 1, it is characterized in that: described in de-liquid step of sieving comprise the following steps: be import turn sieve by through soaking the material after deinking step process, sieve material by gravity or by rotary centrifugal force effect, drench de-or revolve and remove institute in material and carry the deinking liquid of black matter precipitation, obtaining the wet sheet of solid content 15 ~ 50% or/and l Water Paper considers material to be worth doing; Or turn while sieve removes liquid crossing, then to sieve material with the water purification drip washing coming from intercycle water purifying tank; Drench from sieve the liquid taken off and be imported into black matter circulating sedimentation tank, the supernatant liquor of sedimentation basin is led back to be soaked in deinking step fermentation vat used, or leads back in the incidental deinking chemicals dosing chamber of fermentation vat, and adds deinking chemicals and appropriate water again; The black matter precipitation slag mud of concentration filter gained from black matter circulating sedimentation tank, after remaking harmless treatment, makes Nutrition Soil and utilizes.
6. the renovation process of extraordinary waste paper according to claim 1, it is characterized in that: described normal temperature pulping step comprises the following steps: by the wet sheet of gained after de-liquid process of sieving or/and l Water Paper bits material imports pulper, wet sheet after going out machine is or/and l Water Paper bits material becomes crude pulp; While pulper carries out pulping processing, then in pulper, add the water purification coming from intercycle water purifying tank, wash by the material just at pulping, synchronously again the water outlet in pulper is imported intercycle water purifying tank, make precipitation purified treatment.
7. the renovation process of extraordinary waste paper according to claim 1, it is characterized in that: described in the water-washing step that sieves comprise the following steps: the crude pulp of gained after the process of normal temperature pulping is imported and turns sieve, pass through Action of Gravity Field, drench and to remove in material the rare liquid of deinking that institute carries black matter precipitation, obtaining solid content is 15 ~ 50% wetly slightly to starch; Or while slightly starching and turning sieve, then to sieve material with the water purification drip washing coming from intercycle water purifying tank; Drench the rare liquid water of the deinking of taking off from sieve and import intercycle water purifying tank, make precipitation purified treatment.
8. the renovation process of extraordinary waste paper according to claim 1, it is characterized in that: described powerful refining step comprises the following steps: the wet thick slurry of the rear gained of washing process that sieves is imported high concentration plate mill and carries out high consistency refining, what obtain beating degree 25 ~ 55 ° of SR contains assorted dispersate paper pulp; Or/and adopt pipeline high-speed rotary cutter machine again, carry out powerful defibrination and the meticulous pulping of brute force.
9. the renovation process of extraordinary waste paper according to claim 1, it is characterized in that: described in removing impurities step of sieving comprise the following steps: the impure dispersate paper pulp of gained after powerful defibrination process being crossed aperture is that the pressurized screen of 10 ~ 35 μm carries out removing impurities, obtain the fine screen paper pulp that concentration is 0.3 ~ 0.5%, the dust point impurity that its diameter of the paper be copied into this paper pulp is less than below 1mm is no more than 500/m
2.
10. the renovation process of extraordinary waste paper according to claim 1, it is characterized in that: described in sieve and wash step again and comprise the following steps: the turbid liquid of the fine screen paper pulp of gained after removing impurities process of sieving is imported and turns sieve, sieve material by gravity or/and by rotary centrifugal force effect, drench de-or/and revolve the water liquid removing and carry in material, obtain the turbid liquid that solid content is the clean paper pulp of essence of 3 ~ 5%.
11. according to claim 5,7,9, the renovation process of 10 arbitrary described extraordinary waste paper, it is characterized in that: described in sieve de-liquid step, the water-washing step that sieves, removing impurities of sieving step, sieve wash again in step to turn sieve be cross section be six seamed edges turn sieve.
The renovation process of 12. extraordinary waste paper according to claim 1, is characterized in that: described in add water and thicken step and comprise the following steps: wash process again by sieving after the clean paper pulp of essence of gained add water furnishing solid content be 2 ~ 5% paper pulp turbid liquid.
The renovation process of 13. extraordinary waste paper according to claim 1, it is characterized in that: described online dehydration comprises the following steps: the paper pulp turbid liquid being 2 ~ 5% by gained solid content after the adjustment concentration process that adds water carries out online copy paper or claims papermaking, realize being separated of paper pulp fiber and water, be dehydrated into the wet commodity regenerated paper pulp that moisture is 30 ~ 50%; Maybe the clean paper pulp of essence be copied into of surfing the Net is crossed steam cylinder direct drying, obtain recycled writing paper or recycled writing paper pulp that moisture is 7 ~ 15%.
14. the regenerated paper pulp purposes that the arbitrary described method of a claim 1 to 13 prepares at least comprises: mix its copy whiteness processed be 60% ~ 80% cultural paper, pulling force is at the kraft wrapping of more than 4kN/m, film coated base paper or compound braided bag body paper.
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105735021A (en) * | 2016-04-19 | 2016-07-06 | 长沙正达轻科纸业设备有限公司 | Process and device for performing high concentration treatment on high wet strength paper |
| CN107022916A (en) * | 2017-05-25 | 2017-08-08 | 江苏美灯纸业有限公司 | A kind of waste paper currency system paste-making method |
| CN107090731A (en) * | 2017-05-25 | 2017-08-25 | 江苏美灯纸业有限公司 | A kind of waste beer mark is beaten preprocess method |
| CN107164986A (en) * | 2017-07-06 | 2017-09-15 | 杨晓东 | It is a kind of to add the method that loofah fiber manufactures recycled writing paper |
| CN107447567A (en) * | 2017-09-30 | 2017-12-08 | 枣庄市恒宇纸业有限公司 | A kind of processing unit of papermaking equipment slurry |
| CN107974855A (en) * | 2017-12-06 | 2018-05-01 | 常州凯奥机电科技有限公司 | A kind of paper deinking method |
| CN110284367A (en) * | 2019-07-01 | 2019-09-27 | 湖南五强溪特种纸业有限公司 | A method of explosive pipe crimping paper is produced using waste paper |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1219628A (en) * | 1997-12-08 | 1999-06-16 | 卢章文 | Comprehensive preparation method for normal temp. deinking agent for waste paper |
| DE10153409A1 (en) * | 2001-10-30 | 2003-05-15 | Basf Ag | Production of high-quality, high-brightness papermaking pulp, e.g. from recycled paper, uses an N-alkylammonium-acetonitrile salt as low temperature bleach activator for per compounds |
| CN103526629A (en) * | 2013-10-23 | 2014-01-22 | 齐鲁工业大学 | Pulping process of waste paper with high wet strength |
-
2014
- 2014-03-24 CN CN201410111917.9A patent/CN104947490A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1219628A (en) * | 1997-12-08 | 1999-06-16 | 卢章文 | Comprehensive preparation method for normal temp. deinking agent for waste paper |
| DE10153409A1 (en) * | 2001-10-30 | 2003-05-15 | Basf Ag | Production of high-quality, high-brightness papermaking pulp, e.g. from recycled paper, uses an N-alkylammonium-acetonitrile salt as low temperature bleach activator for per compounds |
| CN103526629A (en) * | 2013-10-23 | 2014-01-22 | 齐鲁工业大学 | Pulping process of waste paper with high wet strength |
Non-Patent Citations (1)
| Title |
|---|
| 姜林宗等: ""废钞脱墨工艺生产性应用试验"", 《上海造纸》 * |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105735021A (en) * | 2016-04-19 | 2016-07-06 | 长沙正达轻科纸业设备有限公司 | Process and device for performing high concentration treatment on high wet strength paper |
| CN107022916A (en) * | 2017-05-25 | 2017-08-08 | 江苏美灯纸业有限公司 | A kind of waste paper currency system paste-making method |
| CN107090731A (en) * | 2017-05-25 | 2017-08-25 | 江苏美灯纸业有限公司 | A kind of waste beer mark is beaten preprocess method |
| CN107164986A (en) * | 2017-07-06 | 2017-09-15 | 杨晓东 | It is a kind of to add the method that loofah fiber manufactures recycled writing paper |
| CN107447567A (en) * | 2017-09-30 | 2017-12-08 | 枣庄市恒宇纸业有限公司 | A kind of processing unit of papermaking equipment slurry |
| CN107974855A (en) * | 2017-12-06 | 2018-05-01 | 常州凯奥机电科技有限公司 | A kind of paper deinking method |
| CN110284367A (en) * | 2019-07-01 | 2019-09-27 | 湖南五强溪特种纸业有限公司 | A method of explosive pipe crimping paper is produced using waste paper |
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