CN108660831A - A kind of production method for producing the paper pulp of corrugating medium - Google Patents
A kind of production method for producing the paper pulp of corrugating medium Download PDFInfo
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- CN108660831A CN108660831A CN201810280904.2A CN201810280904A CN108660831A CN 108660831 A CN108660831 A CN 108660831A CN 201810280904 A CN201810280904 A CN 201810280904A CN 108660831 A CN108660831 A CN 108660831A
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- 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
- D21B1/32—Defibrating by other means of 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
- D21B1/32—Defibrating by other means of waste paper
- D21B1/325—Defibrating by other means of waste paper de-inking devices
- D21B1/327—Defibrating by other means of waste paper de-inking devices using flotation devices
-
- 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
- D21C5/005—Treatment of cellulose-containing material with microorganisms or enzymes
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H11/00—Pulp or paper, comprising cellulose or lignocellulose fibres of natural origin only
- D21H11/14—Secondary fibres
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
- D21H17/20—Macromolecular organic compounds
- D21H17/21—Macromolecular organic compounds of natural origin; Derivatives thereof
- D21H17/24—Polysaccharides
- D21H17/28—Starch
- D21H17/29—Starch cationic
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
- D21H17/63—Inorganic compounds
- D21H17/66—Salts, e.g. alums
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
- D21H17/63—Inorganic compounds
- D21H17/67—Water-insoluble compounds, e.g. fillers, pigments
- D21H17/68—Water-insoluble compounds, e.g. fillers, pigments siliceous, e.g. clays
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H21/00—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties
- D21H21/02—Agents for preventing deposition on the paper mill equipment, e.g. pitch or slime control
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H21/00—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties
- D21H21/06—Paper forming aids
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H21/00—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties
- D21H21/06—Paper forming aids
- D21H21/10—Retention agents or drainage improvers
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H21/00—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties
- D21H21/14—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties characterised by function or properties in or on the paper
- D21H21/30—Luminescent or fluorescent substances, e.g. for optical bleaching
-
- 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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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
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Abstract
The invention discloses a kind of production methods for producing the paper pulp of corrugating medium, including size degradation slurrying step, prepare thick slurry step, microorganism decontamination step, screening purifying step, floatation and ink removing step, chelating pre-treatment step, sodium borohydride pre-treatment step and step with slurry, the present invention can be low-quality waste paper in the case where exempting from classification, reduce processing step, low-quality waste paper is prepared into paper pulp, it can be used in producing high-end high intensity corrugating medium, production process clean environment firendly, it is pollution-free, turn waste into wealth, reduces environmental pollution.
Description
Technical field
The present invention relates to the technical fields of regenerated papermaking, more particularly, to a kind of life for producing the paper pulp of corrugating medium
Production method.
Background technology
In the prior art, frequently with low-quality waste paper and high-quality waste paper be hybridly prepared into paper pulp, this needs a large amount of manpower
The screening of waste paper type is carried out, in addition, commonly using a large amount of chemical agent to old paper stock prepare paper pulp during
It is handled, this causes multiple chemical to pollute old paper stock, it is difficult to be directly used in the corrugating medium of production high intensity, produce
Journey needs to increase more processing step, increases controlling unit and production cost, it is therefore necessary to improve.
Invention content
In view of the deficienciess of the prior art, the present invention is to provide a kind of producer for producing the paper pulp of corrugating medium
Method, the preprocess method can be reduced processing step, low-quality waste paper are prepared into paper low-quality waste paper in the case where exempting from classification
Slurry, production process clean environment firendly is pollution-free, turns waste into wealth, reduces environmental pollution.
To achieve the goals above, the technical scheme is that：A kind of production for producing the paper pulp of corrugating medium
Method includes the following steps,
1) size degradation slurrying step：Rotary drum pulping machine is put into using low-quality waste paper as wastepaper as raw material, is added in rotary drum pulping machine
Enter calcium carbonate, the weight input ratio of calcium carbonate is that low-quality waste paper per ton puts into 1~5 kilogram of calcium carbonate, warm under highly concentrated state
And continuous disperse, magma is made；
2) thick slurry step is prepared：Magma made from size degradation slurrying step is carried out using two sections of HC Cleaners of level-one highly concentrated
Then two sections of scalpings of level-one are passed through in removal of impurities, thick slurry is made；
3) microorganism decontamination step：Coarse slurry pump is sent into fluid bed reaction apparatus by jet pipe, thick slurry is pumped in pump line
While, the spray Zi, one of the lunar mansions for being arranged in jet pipe side spray into fluid bed reaction apparatus using Phycomycetes made of microorganism
Treatment fluid makes microbiological treatment liquid be mixed in naturally in thick slurry, fluid bed reaction apparatus base injcction high speed and high pressure air 4~
12 hours, decontamination paper pulp is made；
4) purifying step is screened：Decontamination paper pulp sequence is pumped to four sections of highly concentrated centrifugation desander, level-one heavy desanders
With dense sieve in three sections of level-one, removal is present in the loose type suspended particulate in decontamination paper pulp, by highly concentrated centrifugation desander to removing
Dirty paper pulp carries out scalping processing, and purified treatment is carried out to decontamination paper pulp by four sections of heavy desanders of level-one, by three sections of level-one
In dense sieve carry out purification process, purified slurry is made；
5) floatation and ink removing step：Purified slurry is pumped to flotation cell, and calcium oxalate is put into flotation cell, flotation cell into
Row floatation and ink removing is handled, and is floated on purified slurry upper layer in the ink separation in purified slurry, is extracted on purified slurry by oil pump
The ink of layer removes the residual ink in free purified slurry, obtains the de inked pulp that whiteness is 67~72%ISO；
6) sodium borohydride pre-processes：Old paper stock is pumped to progress sodium borohydride pretreatment in reaction tank, it will before handling
The concentration control of old paper stock is old paper stock input 10~15 per ton in 8~10wt%, the weight input ratio of sodium borohydride
Kilogram sodium borohydride, pH value control heats old paper stock 9~10, by the heater mounted on bottom of pond, by old paper stock
At 75~85 DEG C, processing time is 3~8min, obtains pretreatment slurry for temperature control；
7) with slurry：Pretreatment slurry is pumped to stock proportioner, is carried out in stock proportioner with slurry, weight ratio with slurry is, often
Ton pretreatment slurry put into 1~2 kilogram of fluorescent whitening agent, 3~5 kilograms of cationic starches, 3~5 kilograms of water repellent agents, 3~5 kilograms
High-purity Polyaluminum Chloride, 5~10 kilograms of bentonites, 3~5 kilograms of particulate super-cells and 1~2 kilogram of stickies control
Agent obtains the paper pulp for producing high intensity corrugating medium.
Further, in the size degradation slurrying step, the slurry concentration of magma is adjusted to 3.5~4.5wt%；
In the thick slurry step step of preparation, it is the vanning of 2.0~4.0mm that HC Cleaner, which selects screen-aperture, except
The impurity that grain size is more than sieve pore is separated off in slag device, the concentration slightly starched is adjusted to 60%~70wt%.
Further, it in the microorganism decontamination step, selects opened upper end and bottom is configured with the volume of aerator
The fluid bed reaction apparatus that 10 tons of great Rong, microorganism decontamination step spray into high-speed compressed air by aerator, and aeration continues
1.5~3 hours time promoted the breeding potential of microorganism, the organic matter in slightly being starched by microorganism decomposition using oxygen in air
Resolve into small organic molecule, ink resolves into small molecule ink, small organic molecule and small molecule ink condense into density at
0.7~0.75 loose type suspended particulate.
Further, in the microorganism decontamination step, microbiological treatment liquid is walked by microculture included below
Suddenly it obtains, it is specific as follows：
A) screened stock solution is produced, selects the magma produced in size degradation slurrying step as training raw material, it first will training
Raw material impurity elimination simultaneously rinses, and using thin defibrination process, finally handles to obtain screened stock solution, the concentration tune of screened stock solution by refined filtration
Section is 40%~50wt%；
B) it cultivates, obtained screened stock solution is placed at 25 DEG C~35 DEG C in the open-top receptacle that volume is 1~3 ton, weight
Dispensing ratio is that addition 1~2kg pears heads are mould in screened stock solution per ton, is continuously slowly sprayed from open-top receptacle bottom in incubation
Enter air, ventilatory capacity is 1L/ minutes, and is slowly stirred by blender, cultivates 48~72 hours, obtains microorganism virgin pulp liquid；
Microorganism virgin pulp liquid is pumped to biological degeneration storehouse by c) biological degeneration, is then injected into clear water, and the weight of clear water is launched
Ratio is that 10~20 tons of clear water are added in microorganism virgin pulp liquid per ton, forms dilution mixed liquor, close after being uniformly mixed
High pressure oxygen is injected into biological degeneration storehouse after closing, the pressure in biological degeneration storehouse is made to be maintained at 2~3MPa, and biological degeneration storehouse
Interior temperature is controlled at 35 DEG C~45 DEG C, is continuously slowly pumped into phosphorus powder to biological degeneration storehouse by metering pump, phosphorus powder is pumped into speed
For 1~3 gram/minute, stop pumping phosphorus powder after uninterrupted pumping is 24~36 hours small, makes in dilution mixed liquor uniformly dispersing by pears
The transparent microspore of mould generation；
Pressure in high pressure oxygen increase storehouse is injected into biological degeneration storehouse after stopping pumping phosphorus powder, passes through biological degeneration storehouse
The exhaust outlet at top reduces air pressure in storehouse, makes the fluctuating change between 5~10MPa of the pressure in biological degeneration storehouse, opens simultaneously
Far infrared fluorescent tube in biological degeneration storehouse, the far-infrared light for being 8~14 microns to dilution mixed liquor illumination wavelength, duration
24~36 hours, make the transparent microspore being distributed in dilution mixed liquor in change pressure, high pressure oxygen and far-infrared light
Hydroxylase is generated under comprehensive function, hydroxylase is evenly distributed in dilution mixed liquor, obtains microbiological treatment liquid.
After adopting the above technical scheme, the invention has the advantages that compared with the prior art,：
1. innovation substitutes the recycling paper material of high-quality high price using low-quality waste paper, without optimizing apolegamy to raw material, according to
Advanced Preparation equipment is held in the palm, by continuing to optimize the selection of equipment operation performance and chemicals, realizes the preparation of low-quality waste paper
Paper pulp；The pulp brightness prepared simultaneously is increased to 90% ISO whiteness by 80%；Intensity reaches high intensity corrugating medium simultaneously
It is required that can be used in producing high-end high intensity corrugating medium.
2. the organic pollution in reclaimed waste paper is consumed as food conducive to the microorganism of handling, can in turn by
Organic pollution is resolved into after production and the complete innocuous substance of environment, being carried out and the fiber point in paper pulp by later stage process
From the pulp quality finally obtained is significantly improved.
3. the present invention can effectively inhibit the quality of waste paper fibre in traditional bleaching process to decay so that plant fiber passes through back
After bleaching, larger decline will not occur for intensity, can improve the reuse number of waste paper fibre, this will bring huge society
It can benefit, economic benefit and environmental benefit.
Specific implementation mode
It is only below presently preferred embodiments of the present invention, is not intended to limit the scope of the present invention.
A kind of production method for the paper pulp being used to produce corrugating medium, includes the following steps,
1) size degradation slurrying step：Rotary drum pulping machine is put into using low-quality waste paper as wastepaper as raw material, is added in rotary drum pulping machine
Enter calcium carbonate, the weight input ratio of calcium carbonate is that low-quality waste paper per ton puts into 1~5 kilogram of calcium carbonate, warm under highly concentrated state
And continuous disperse, magma is made, the slurry concentration of magma is adjusted to 3.5~4.5wt%.
2) thick slurry step is prepared：Magma made from size degradation slurrying step is carried out using two sections of HC Cleaners of level-one highly concentrated
Removal of impurities, it is the vanning of 2.0~4.0mm that HC Cleaner, which selects screen-aperture, and grain size is separated off in scummer and is more than sieve pore
Impurity, then pass through two sections of scalpings of level-one, thick slurry be made, the concentration slightly starched is adjusted to 60%~70wt%.
3) microorganism decontamination step：
This step needs first to make microbiological treatment liquid, and microbiological treatment liquid is by microculture step included below
It obtains, it is specific as follows：
A) screened stock solution is produced, selects the magma produced in size degradation slurrying step as training raw material, it first will training
Raw material impurity elimination simultaneously rinses, and using thin defibrination process, finally handles to obtain screened stock solution, the concentration tune of screened stock solution by refined filtration
Section is 40%~50wt%.
B) it cultivates, obtained screened stock solution is placed at 25 DEG C~35 DEG C in the open-top receptacle that volume is 1~3 ton, weight
Dispensing ratio is that addition 1~2kg pears heads are mould in screened stock solution per ton, is continuously slowly sprayed from open-top receptacle bottom in incubation
Enter air, ventilatory capacity is 1L/ minutes, and is slowly stirred by blender, is cultivated 48~72 hours, this step main purpose is to increase
The quantity for adding pears head mould, while it being made to be evenly distributed, obtain microorganism virgin pulp liquid.
Microorganism virgin pulp liquid is pumped to biological degeneration storehouse by c) biological degeneration, is then injected into clear water, and the weight of clear water is launched
Ratio is that 10~20 tons of clear water are added in microorganism virgin pulp liquid per ton, forms dilution mixed liquor, close after being uniformly mixed
High pressure oxygen is injected into biological degeneration storehouse after closing, the pressure in biological degeneration storehouse is made to be maintained at 2~3MPa, and biological degeneration storehouse
Interior temperature is controlled at 35 DEG C~45 DEG C, is continuously slowly pumped into phosphorus powder to biological degeneration storehouse by metering pump, phosphorus powder is pumped into speed
For 1~3 gram/minute, stop pumping phosphorus powder after uninterrupted pumping is 24~36 hours small, the mould absorption phosphorus powder of pears head as nutrient, and
Transparent microspore is generated, makes in dilution mixed liquor uniformly dispersing by the transparent microspore of the mould generation of pears head.
Pressure in high pressure oxygen increase storehouse is injected into biological degeneration storehouse after stopping pumping phosphorus powder, passes through biological degeneration storehouse
The exhaust outlet at top reduces air pressure in storehouse, makes the fluctuating change between 5~10MPa of the pressure in biological degeneration storehouse, opens simultaneously
Far infrared fluorescent tube in biological degeneration storehouse, the far-infrared light for being 8~14 microns to dilution mixed liquor illumination wavelength, duration
24~36 hours, the transparent microspore in dilution mixed liquor was distributed in the comprehensive of change pressure, high pressure oxygen and far-infrared light
Under cooperation is used, the partial outer membrane of transparent microspore can be first destroyed by infrared ray, transparent microspore generates under change pressure effect
Different degrees of swell or diminution, the transparent microspore that contacts with each other therebetween mutually merge regeneration by its outer membrane cut, and fusion is again
Raw transparent microspore generates hydroxylase simultaneously in regenerative process, and hydroxylase is evenly distributed in dilution mixed liquor, obtains
Microbiological treatment liquid.
Microorganism decontamination step is sent coarse slurry pump into fluid bed reaction apparatus by jet pipe, is slightly starched in pump line pumping
Meanwhile it is sprayed into fluid bed reaction apparatus using at microorganism made of Phycomycetes by the way that the spray Zi, one of the lunar mansions in jet pipe side is arranged
Liquid is managed, so that microbiological treatment liquid is mixed in naturally in thick slurry, in fluid bed reaction apparatus base injcction high speed and high pressure air 4~12
Hour, it is slightly starched by high speed and high pressure air agitation, makes slightly to starch inside and outside rolling, merge regenerated transparent microspore and hydroxylase exists
Rapid dispersion and transfer, decompose some organic pollutants and ink in thick slurry, are merging regenerated transparent microspore and hydroxylating
Enzyme disperses in transfer process, and the regenerated transparent microspore of fusion and hydroxylase can also absorb some organic pollutants as foster
Point, with the activity of transparent microspore and hydroxylase in the microbiological treatment liquid inside promotion, accelerate the breeding speed of microorganism
Degree and decomposition rate complete microorganism decontamination step, and decontamination paper pulp is made.
Preferably, the fluidized-bed reaction of 10 tons of the volume great Rong of selection opened upper end and bottom configured with aerator is set
Standby, microorganism decontamination step sprays into high-speed compressed air by aerator, is aerated 1.5~3 hours duration, utilizes air
Middle oxygen promotes the breeding potential of microorganism, and the organic matter in slightly being starched by microorganism decomposition resolves into small organic molecule, ink
Small molecule ink is resolved into, small organic molecule and small molecule ink condense into density into 0.7~0.75 loose type suspension
Grain.The present invention is decontaminated using microorganism, the organic pollution in secondary stock is enough decomposed using microbiological treatment liquid energy, and reduce
The content of pollutant in later stage waste water water body is handled, reduces the influence to environment, production process is pollution-free.
4) purifying step is screened：Decontamination paper pulp sequence is pumped to four sections of highly concentrated centrifugation desander, level-one heavy desanders
With dense sieve in three sections of level-one, removal is present in the loose type suspended particulate in decontamination paper pulp, by highly concentrated centrifugation desander to removing
Dirty paper pulp carries out scalping processing, and purified treatment is carried out to decontamination paper pulp by four sections of heavy desanders of level-one, by three sections of level-one
In dense sieve carry out purification process, purified slurry is made；
5) floatation and ink removing step：Purified slurry is pumped to flotation cell, and calcium oxalate is put into flotation cell, flotation cell into
Row floatation and ink removing is handled, and is floated on purified slurry upper layer in the ink separation in purified slurry, is extracted on purified slurry by oil pump
The ink of layer removes the residual ink in free purified slurry, obtains the de inked pulp that whiteness is 67~72%ISO.
6) sodium borohydride pre-processes：Old paper stock is pumped to progress sodium borohydride pretreatment in reaction tank, it will before handling
The concentration control of old paper stock is old paper stock input 10~15 per ton in 8~10wt%, the weight input ratio of sodium borohydride
Kilogram sodium borohydride, pH value control heats old paper stock 9~10, by the heater mounted on bottom of pond, by old paper stock
At 75~85 DEG C, processing time is 3~8min, obtains pretreatment slurry for temperature control；
7) with slurry：Pretreatment slurry is pumped to stock proportioner, is carried out in stock proportioner with slurry, weight ratio with slurry is, often
Ton pretreatment slurry put into 1~2 kilogram of fluorescent whitening agent, 3~5 kilograms of cationic starches, 3~5 kilograms of water repellent agents, 3~5 kilograms
High-purity Polyaluminum Chloride, 5~10 kilograms of bentonites, 3~5 kilograms of particulate super-cells and 1~2 kilogram of stickies control
Agent obtains the paper pulp for producing high intensity corrugating medium.
The above content is only presently preferred embodiments of the present invention, for those of ordinary skill in the art, according to the present invention
Thought, there will be changes in the specific implementation manner and application range, and the content of the present specification should not be construed as to the present invention
Limitation.
Claims (4)
1. a kind of production method for producing the paper pulp of corrugating medium, it is characterised in that：Include the following steps,
1) size degradation slurrying step：Rotary drum pulping machine is put into using low-quality waste paper as wastepaper as raw material, carbon is added in rotary drum pulping machine
The weight input ratio of sour calcium, calcium carbonate is that low-quality waste paper per ton puts into 1~5 kilogram of calcium carbonate, mildly connects under highly concentrated state
Continuous size degradation, is made magma；
2) thick slurry step is prepared：Highly concentrated remove is carried out to magma made from size degradation slurrying step using two sections of HC Cleaners of level-one
It is miscellaneous, then pass through two sections of scalpings of level-one, thick slurry is made；
3) microorganism decontamination step：Coarse slurry pump is sent into fluid bed reaction apparatus by jet pipe, is slightly starched in pump line pumping same
When, the spray Zi, one of the lunar mansions for being arranged in jet pipe side spray into fluid bed reaction apparatus using Phycomycetes made of microbiological treatment
Liquid makes microbiological treatment liquid be mixed in naturally in thick slurry, small in fluid bed reaction apparatus base injcction high speed and high pressure air 4~12
When, decontamination paper pulp is made；
4) purifying step is screened：Decontamination paper pulp sequence is pumped to highly concentrated centrifugation desander, four sections of heavy desanders of level-one and one
Dense sieve in three sections of grade, removal is present in the loose type suspended particulate in decontamination paper pulp, by highly concentrated centrifugation desander to decontaminating paper
Slurry carries out scalping processing, purified treatment is carried out to decontamination paper pulp by four sections of heavy desanders of level-one, by dense in three sections of level-one
Sieve carries out purification process, and purified slurry is made；
5) floatation and ink removing step：Purified slurry is pumped to flotation cell, and calcium oxalate is put into flotation cell, is floated in flotation cell
It selects deinking to handle, floats on purified slurry upper layer in the ink separation in purified slurry, purified slurry upper layer is extracted by oil pump
Ink removes the residual ink in free purified slurry, obtains the de inked pulp that whiteness is 67~72%ISO；
6) sodium borohydride pre-processes：Old paper stock is pumped to progress sodium borohydride pretreatment in reaction tank, by waste paper before processing
In 8~10wt%, the weight input ratio of sodium borohydride is that old paper stock per ton puts into 10~15 kilograms for the concentration control of paper pulp
Sodium borohydride, pH value control heats old paper stock 9~10, by the heater mounted on bottom of pond, by the temperature of old paper stock
At 75~85 DEG C, processing time is 3~8min, obtains pretreatment slurry for control；
7) with slurry：Pretreatment slurry is pumped to stock proportioner, is carried out in stock proportioner with slurry, weight ratio with slurry is, per ton pre-
Handle slurry put into 1~2 kilogram of fluorescent whitening agent, 3~5 kilograms of cationic starches, 3~5 kilograms of water repellent agents, 3~5 kilograms it is high-purity
Aluminium polychloride, 5~10 kilograms of bentonites, 3~5 kilograms of particulate super-cells and 1~2 kilogram of stickies control agent,
Obtain the paper pulp for producing high intensity corrugating medium.
2. a kind of production method for producing the paper pulp of corrugating medium according to claim 1, it is characterised in that：It is described
In size degradation slurrying step, the slurry concentration of magma is adjusted to 3.5~4.5wt%；
In the thick slurry step step of preparation, it is the vanning of 2.0~4.0mm that HC Cleaner, which selects screen-aperture, in scummer
In be separated off the impurity that grain size is more than sieve pore, the concentration slightly starched is adjusted to 60%~70wt%.
3. a kind of production method for producing the paper pulp of corrugating medium according to claim 1, it is characterised in that：It is described
In microorganism decontamination step, selects opened upper end and the fluidized-bed reaction of volume great Rong 10 ton of the bottom configured with aerator is set
Standby, microorganism decontamination step sprays into high-speed compressed air by aerator, is aerated 1.5~3 hours duration, utilizes air
Middle oxygen promotes the breeding potential of microorganism, and the organic matter in slightly being starched by microorganism decomposition resolves into small organic molecule, ink
Small molecule ink is resolved into, small organic molecule and small molecule ink condense into density into 0.7~0.75 loose type suspension
Grain.
4. a kind of production method for producing the paper pulp of corrugating medium according to claim 1, it is characterised in that：It is described
In microorganism decontamination step, microbiological treatment liquid is obtained by microculture step included below, specific as follows：
A) screened stock solution is produced, selects the magma produced in size degradation slurrying step as training raw material, will first train raw material
Impurity elimination simultaneously rinses, and using thin defibrination process, finally handles to obtain screened stock solution by refined filtration, the concentration of screened stock solution is adjusted to
40%~50wt%；
B) it cultivates, obtained screened stock solution is placed at 25 DEG C~35 DEG C in the open-top receptacle that volume is 1~3 ton, weight is launched
Ratio is that addition 1~2kg pears heads are mould in screened stock solution per ton, and sky is continuously slowly sprayed into from open-top receptacle bottom in incubation
Gas, ventilatory capacity is 1L/ minutes, and is slowly stirred by blender, cultivates 48~72 hours, obtains microorganism virgin pulp liquid；
Microorganism virgin pulp liquid is pumped to biological degeneration storehouse by c) biological degeneration, is then injected into clear water, and the weight of clear water launches ratio
It is that 10~20 tons of clear water are added in microorganism virgin pulp liquid per ton, dilution mixed liquor is formed, after being uniformly mixed, after closed
High pressure oxygen is injected into biological degeneration storehouse, so that the pressure in biological degeneration storehouse is maintained at 2~3MPa, and in biological degeneration storehouse
Temperature is controlled at 35 DEG C~45 DEG C, and continuously slowly phosphorus powder is pumped into biological degeneration storehouse by metering pump, phosphorus powder be pumped into speed be 1~
3 gram/minutes stop pumping phosphorus powder after uninterrupted pumping is 24~36 hours small, keep uniformly dispersing in dilution mixed liquor mould by pears head
The transparent microspore generated；
Pressure in high pressure oxygen increase storehouse is injected into biological degeneration storehouse after stopping pumping phosphorus powder, passes through biological degeneration the top of the warehouse
Exhaust outlet reduce storehouse in air pressure, make the fluctuating change between 5~10MPa of the pressure in biological degeneration storehouse, while opening biology
The far infrared fluorescent tube being denaturalized in storehouse, the far-infrared light for being 8~14 microns to dilution mixed liquor illumination wavelength, the duration 24~
36 hours, make the transparent microspore being distributed in dilution mixed liquor in the synthesis of change pressure, high pressure oxygen and far-infrared light
Effect is lower to generate hydroxylase, and hydroxylase is evenly distributed in dilution mixed liquor, obtains microbiological treatment liquid.
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| CN112663372A (en) * | 2020-12-25 | 2021-04-16 | 东莞顺裕纸业有限公司 | Production method for reconstructing corrugated medium paper by using waste paper and capable of reducing pulping energy consumption |
| CN112746512A (en) * | 2021-02-22 | 2021-05-04 | 张思磊 | Corrugated paper recovery processing equipment for environmental protection machinery |
| CN113481752A (en) * | 2021-07-23 | 2021-10-08 | 广州造纸股份有限公司 | Ultralow-quantitative corrugated base paper and preparation method thereof |
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