CN101319471A - Environment friendly energy-saving circulation type non-pollution pulping process and its system apparatus - Google Patents
Environment friendly energy-saving circulation type non-pollution pulping process and its system apparatus Download PDFInfo
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- CN101319471A CN101319471A CNA2008100978682A CN200810097868A CN101319471A CN 101319471 A CN101319471 A CN 101319471A CN A2008100978682 A CNA2008100978682 A CN A2008100978682A CN 200810097868 A CN200810097868 A CN 200810097868A CN 101319471 A CN101319471 A CN 101319471A
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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
- D21C1/00—Pretreatment of the finely-divided materials before digesting
- D21C1/06—Pretreatment of the finely-divided materials before digesting with alkaline reacting compounds
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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
- D21C3/00—Pulping cellulose-containing materials
- D21C3/02—Pulping cellulose-containing materials with inorganic bases or alkaline reacting compounds, e.g. sulfate processes
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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
- D21C3/00—Pulping cellulose-containing materials
- D21C3/22—Other features of pulping processes
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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
- D21C7/00—Digesters
-
- 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
- D21C9/00—After-treatment of cellulose pulp, e.g. of wood pulp, or cotton linters ; Treatment of dilute or dewatered pulp or process improvement taking place after obtaining the raw cellulosic material and not provided for elsewhere
- D21C9/10—Bleaching ; Apparatus therefor
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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
- D21C9/00—After-treatment of cellulose pulp, e.g. of wood pulp, or cotton linters ; Treatment of dilute or dewatered pulp or process improvement taking place after obtaining the raw cellulosic material and not provided for elsewhere
- D21C9/10—Bleaching ; Apparatus therefor
- D21C9/147—Bleaching ; Apparatus therefor with oxygen or its allotropic modifications
-
- 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
- D21C9/00—After-treatment of cellulose pulp, e.g. of wood pulp, or cotton linters ; Treatment of dilute or dewatered pulp or process improvement taking place after obtaining the raw cellulosic material and not provided for elsewhere
- D21C9/10—Bleaching ; Apparatus therefor
- D21C9/16—Bleaching ; Apparatus therefor with per compounds
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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Wood Science & Technology (AREA)
- Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Paper (AREA)
Abstract
The invention relates to an environment-friendly energy-saving cyclic-type pollution-free pulping process and a system device thereof. The process comprises the following procedures of cutting material, screening, dedusting, thinning raw material, integrating steaming with bleaching, grinding pulp, screening, purifying, concentrating, treating water, granulating, supplying heat and generating electricity through biomass gasification, etc. The procedure of integrating steaming with bleaching comprises the following processes of presoaking, steaming, cooking and bleaching the raw material, wherein a presoaking agent is added to carry out presoaking for 30-60 min at a temperature between 50 and 100 DEG C; a steaming- cooking agent is added after presoaking, and oxygen is supplied to carry out steaming- cooking delignification reaction at the same time, with oxygen pressure kept between 0.1 and 0.3 MPa, for 45-90 min, at a temperature between 60 and 100 DEG C; bleaching agent is added after steaming- cooking, and the oxygen pressure continues to be kept, and bleaching reaction is carried out for 45-120 min at a temperature between 60 and 100 DEG C. The pulping process solves the pollution problems of lack liquor from pulping, especially straw pulping, washing sewage, discharged waste residue, etc., and solves the problem that is complex working procedure and serious pollution widely exist in the prior pulping in a real sense.
Description
Technical field
The present invention relates to a kind of pulping process and device thereof, particularly relate to a kind of environment friendly energy-saving circulation type non-pollution pulping process and system and device thereof.
Background technology
At present, China is the various places that spread all over the country, the paper mill of raw material with grass fiber or timber, soda pulping process technology is adopted in most of paper mill, form by operations such as blank, dedusting, boiling, washing, screening and bleachings, in boiling, washing and screening process, the discharging large amount of sewage, suspended matter and organic substance concentration height in the water, color and luster is dark, and acid or alkalescence are big, and biodegradability is poor.Tradition pulping process complex procedures is not only wasted water, acid or alkali, a large amount of fibers that run off, and brought severe contamination to environment.In order to reduce environmental pollution, country has closed medium and small pulping and paper-making factory of thousands of families, has caused very big social loss.There is the enterprise of certain scale in thousands of families, are badly in need of a kind of low cost, reliable non-pollution pulping process and device thereof.
Non-pollution pulping process is the important directions of field of papermaking research always, there are many new technical matters and scheme to occur, explore the method for dealing with problems from different angles, as Deutsche Bundespatent NO.19730486, the scheme of introducing is to flood wood chip with liquefied ammonia, and under 20bar pressure, keep 20min, feeding steam blasting again handles, handling the back fibrous raw material enters in the container, use ethanol: the solution of water=1: 1, extracting fibrous raw material repeatedly contains 85% lignin and 90% hemicellulose in the ethanol water.The scheme that Chinese patent CN1184183A introduces is to adopt NaOH, Na
2SO
4Deng alkaline matter, add the black liquor character that alcohols material such as a certain amount of ethanol improves soda pulping process again, the viscosity that reduces silicon alkali is so that the chemical recovery system operation.
Said method does not still overcome some defectives of traditional pulping process, need be as boiling than higher temperature, and the pulping system power consumption is high; Boiling and bleaching process are interrupted, complexity is tediously long, and black digestion liquid, float pollutants such as back raffinate, sediment waste residue and do not have a kind of effective environment-friendly treatment method, thereby pulp and paper industry is badly in need of a kind of low cost, the reliable non-pollution pulping process of low energy consumption and device thereof.
Summary of the invention
In order to overcome the deficiency of existing pulping technique and pulping system equipment.The invention provides a kind of environment friendly energy-saving circulation type non-pollution pulping process and system and device thereof, the waste pollution problems such as waste residue of solved the particularly careless class black liquor of pulp making of slurrying pollution problem, washing concentrating sewage pollution problem, deviating from have truly solved the complex procedures, the with serious pollution problem that extensively exist in traditional pulping process.
Environment friendly energy-saving circulation type non-pollution pulping process of the present invention comprises blank, the screening dedusting, raw material divides the silk refinement, one is floated in steaming, operations such as defibrination and screening purification, it is characterized in that: steaming is floated the one operation and is comprised the raw material preimpregnation, boiling and bleaching process, it is to add preimpregnation medicament preimpregnation raw material 30-60min earlier that the one operation is floated in described steaming, the preimpregnation temperature is 50-100 ℃, add steaming preparation after the preimpregnation, the oxygen that feeds 0.1-0.3Mpa simultaneously carries out the boiling delignification reaction, reaction time is 45-90min, reaction temperature is 60-100 ℃, the bleaching medicament is continued to add in the intact back of boiling, continue aerating oxygen simultaneously and keep oxygen to press 0.1-0.3Mpa, the bleaching action time is 45-120min, and bleaching temperature is 60-100 ℃.
Described preimpregnation medicament comprises EDTA 0.2-1%, alkali 0.5-3.5%.
Described steaming preparation comprises alkali 2-6%, magnesium sulfate 0.5-2%.
Described bleaching pharmacy kit contains sodium metasilicate 1-5%, alkali 2-6%, hydrogen peroxide 1-4% and magnesium sulfate 0.5-2%.
Described alkali comprises NaOH, potassium hydroxide and calcium hydroxide.
Above-mentioned chemical content is all with the weight percent meter of over dry raw material, and the omnidistance time of the bleaching integrated operation of described steaming is 120-270min, and reaction temperature is that 50-100 ℃, reaction density are 15-20% (in oven dry stock).
The system and device of environment friendly energy-saving circulation type non-pollution pulping process of the present invention comprises:
1. blank equipment; 2. screening cleaner; 3. raw material divides the silk thinning apparatus; 4. multifunctional steam floats the one pulping equipment; 5. dehydration equipment; 6. slurry bunkerage; 7. refining equipment; 8. screening cleaning equipment; 9. concentrator; 10. biochemical materialization treatment facility; 11. filtering equipment; 12. mixing device; 13. drying equipment; 14. pulverizing Granulation Equipments; 15. living beings gasification heating system; 16. living beings gasification power generation system.
Wastewater treatment cycling and reutilization system: useless, the raffinate of deviating from by dewatering system equipment by water treatments such as physical sedimentation, filtrations after, flow into the reuse storage cistern, circulating and recovering each watering equipment in whole system.
The waste residue cycle of treatment is utilized system again: by other non-raw material impurity such as screening dedusting broken thin raw material down and by the sediment after the biochemical materialization processing, the high concentration waste residue of making through filtering equipment, evenly mix various waste residues by hybrid system equipment, after handling by dry, pulverizing Granulation Equipments again, enter living beings gasification heating system, living beings gasification power generation system respectively, produce heat energy and electric energy and be back in the whole environment friendly energy-saving circulation type non-pollution pulping process system and device.
Environment friendly energy-saving circulation type non-pollution pulping process of the present invention and system and device thereof are applicable to annual various straw or like vegetable raw material and wood type raw material.
The concrete equipment of the system and device of environment friendly energy-saving circulation type non-pollution pulping process of the present invention is as follows:
Blank equipment is to select the corollary equipment adapt at different material, as rotor formula chaffcutter, cut reed machine, disk chipper etc.;
The screening cleaner is can select equipment such as railroad duster, bicone dust removal machine, cyclopneumatic separator for use at different material;
It is can select the different silk thinning apparatus that divide such as propellers formula, fly cutter chip, toothed disc type for use at raw material type that raw material divides the silk thinning apparatus;
Dehydration and concentration systems equipment can be selected thickening equipment such as single Double screw pulp extruder, belt filter press, Var-nip press for use;
The slurry bunkerage is the stock tank of a constant volume and makes slurry be in the agitator of even suspended state;
Refining equipment can select for use high dense formula, in the fiberizer of dense formula, low dense formula, kind select a refining equipment that adapts at the difference slurry;
The screening cleaning equipment can be selected screening cleaning equipments such as pressurized screen, selectifier, screen centrifuge for use;
Biochemical materialization treatment facility is equipment such as precipitation, flocculation, filtration, is used to handle the waste water of COD＜3000mg/L.
Filter press is used for biochemical materialization and handles the postprecipitation thing, and press filtration becomes the high concentration waste residue.
Mixing device is that the waste residue that system's each several part produces is mixed fully mutually, can select the double-roll type blender for use.
Drying equipment is to mixed high concentration waste residue drying and dehydrating, reach the mass dryness fraction that biomass granulation needs, the power cycles reuse that drying source can adopt the biogas elelctrochemical power generation to produce, with electrical drying, conduction oil drying, and the modes such as heat energy steam drying of living beings gasification heat supply generation; Pulverizing granulating system, living beings gasification heating system, living beings elelctrochemical power generation system are that living beings are comprehensively utilized again, produce the system and device of heat energy and power cycles reuse.
Environment friendly energy-saving circulation type non-pollution pulping process of the present invention and system and device thereof integrate boiling and bleaching, pollution-free material discharging, waste water and dregs recycle in whole pulping process and the system and device running thereof.In the boiling and bleaching process, do not wash, do not dewater in the centre; Advantage with cleaning pulpings such as significantly saving water and energy, and harmful carcinogen such as Han bioxin not in the water of deviating from behind the slurry bleaching, about the water COD content 2000-3000mg/L that deviates from, by circulating and recovering after the water treatments such as physical filtering, precipitation in system, the sediment press filtration that each section deviate from concentrates, the waste residue behind the combination drying, accomplishes and makes the best use of everything; By the pulverizing granulation, the biogas elelctrochemical power generation, living beings gasification heat supply produces electric energy and heat energy circulating and recovering in system.Environment friendly energy-saving circulation type non-pollution pulping process of the present invention and system and device thereof have fundamentally solved problems such as the high pollution, high energy consumption of pulp and paper industry; and promote the cycling and reutilization and the sustainable development of agricultural resource, and the ecological environment of protecting us to depend on for existence.
Description of drawings
Fig. 1 is a process chart of the present invention.
The specific embodiment
The present invention is further illustrated below in conjunction with embodiment.
Raw material: wheat straw or straw
Raw material, enters the spiral roll-type and divides the silk machine to carry out raw material branch silk thinning processing through railroad duster screening dedusting by rotor formula chaffcutter blank, enters multifunctional steam again and floats in the one pulping equipment.The preimpregnation medicament is added multifunctional steam to be floated in the one pulping equipment, the preimpregnation time is 30min, temperature is 50 ℃, and preimpregnation finishes the back and feeds steaming preparation and oxygen, keeps oxygen to press and is 0.1Mpa, reaction time is 45min, reaction temperature is 60 ℃, and boiling finishes the back and continues to feed the bleaching medicament, and the bleaching action time is 45min, temperature is 60 ℃, bleaching terminal point discharge.Wherein, the preimpregnation medicament comprises EDTA0.2%, alkali 0.5%; Steaming preparation comprises alkali 2%, magnesium sulfate 0.5%; The bleaching pharmacy kit contains sodium metasilicate 1%, alkali 2%, hydrogen peroxide 1% and magnesium sulfate 0.5%.
Concentrated by the acroll press washer dehydration by the slurry behind the bleaching terminal point discharge, the bleaching slurry enters stock tank and is adjusted to finite concentration, and the effect by agitator makes slurry be in even suspended state.Enter the defibrination unit again and finish grind slurry, slurry is delivered to pressurized screen again and is screened, and good slurry is sent into the acroll press washer thickening, and thick slurry is back to fiberizer stock tank before defibrination again, reaches the requirement that paper is copied in the online of sizing mixing by the good slurry after concentrating.
Water after the raffinate that the acroll press washer that uses in dewatering system and concentration systems is deviate from is handled by biochemical materializations such as physical sedimentation filtrations is back to each section of system, the sediment flocculate is made the high concentration waste residue by filter press, after connection fully mixes by double roller mixer with the broken thin raw material under the screening dedusting and other non-raw material impurity sand grains etc., carry out steam drying, pulverize granulation again, send into biogas elelctrochemical power generation equipment and living beings gasification heating equipment, produce a large amount of electric energy and heat energy, be back to again in each system equipment and use.
Embodiment 2
Raw material: reed
Raw material is cut reed machine or dise reed cutter blank by the rotor formula, through bicone dust removal machine screening dedusting, enters disc type and divides the silk machine to carry out a raw material branch silk thinning processing, enters multifunctional steam again and floats in the one pulping equipment.The preimpregnation medicament is added multifunctional steam to be floated in the one pulping equipment, the preimpregnation time is 60min, temperature is 100 ℃, and preimpregnation finishes the back and feeds steaming preparation and oxygen, keeps oxygen to press and is 0.3Mpa, reaction time is 90min, reaction temperature is 100 ℃, and boiling finishes the back and continues to feed bleaching medicament, bleaching action time 120min, 100 ℃ of temperature, bleaching terminal point discharge.Wherein, the preimpregnation medicament comprises EDTA 1.0%, alkali 3.5%; Steaming preparation comprises alkali 6%, magnesium sulfate 2%; The bleaching pharmacy kit contains sodium metasilicate 5%, alkali 6%, hydrogen peroxide 4% and magnesium sulfate 2%.
Concentrated by the dehydration of single-screw squeezer by the slurry behind the bleaching terminal point discharge, the bleaching slurry enters stock tank and is adjusted to finite concentration, and the effect by agitator makes slurry be in even suspended state.Enter the defibrination unit again and finish grind slurry, slurry is delivered to screen centrifuge again and is screened, and good slurry is sent into the thickening of single-screw squeezer, and thick slurry is back to fiberizer stock tank before defibrination again, reaches the requirement that paper is copied in the online of sizing mixing by the good slurry after concentrating.
Water after the raffinate that the single-screw squeezer that uses in dewatering system and concentration systems is deviate from is handled by biochemical materializations such as physical sedimentation filtrations is back to each section of system, the sediment flocculate is made the high concentration waste residue by filter press, after connection fully mixes by double roller mixer with the broken thin raw material under the screening dedusting and other non-raw material impurity sand grains etc., carry out steam drying, pulverize granulation again, send into biogas elelctrochemical power generation equipment and living beings gasification heating equipment, produce a large amount of electric energy and heat energies, be back to again in each system equipment and use.
Embodiment 3
Raw material: cotton stalk
Raw material, enters the fly cutter chip and divides the silk machine to carry out raw material branch silk thinning processing through roll-type dust removal machine screening dedusting by rotor formula chaffcutter blank, enters multifunctional steam again and floats in the one pulping equipment.The preimpregnation medicament is added multifunctional steam to be floated in the one pulping equipment, the preimpregnation time is 45min, temperature is 80 ℃, and preimpregnation finishes the back and feeds steaming preparation and oxygen, keeps oxygen to press and is 0.2Mpa, reaction time is 70min, reaction temperature is 80 ℃, and boiling finishes the back and continues to feed bleaching medicament, bleaching action time 80min, 80 ℃ of temperature, bleaching terminal point discharge.Wherein, the preimpregnation medicament comprises EDTA 0.6%, alkali 2%; Steaming preparation comprises alkali 4%, magnesium sulfate 1.2%; The bleaching pharmacy kit contains sodium metasilicate 3%, alkali 4%, hydrogen peroxide 2.5% and magnesium sulfate 1.2%.
Concentrated by the dehydration of single-screw squeezer by the slurry behind the bleaching terminal point discharge, the bleaching slurry enters stock tank and is adjusted to finite concentration, and the effect by agitator makes slurry be in even suspended state.Enter the defibrination unit again and finish grind slurry, slurry is delivered to screen centrifuge again and is screened, and good slurry is sent into the belt filter press thickening, and thick slurry is back to fiberizer stock tank before defibrination again, reaches the requirement that paper is copied in the online of sizing mixing by the good slurry after concentrating.
Water after the raffinate that single-screw squeezer that uses in dewatering system and concentration systems and belt filter press are deviate from is handled by biochemical materializations such as physical sedimentation filtrations is back to each section of system, the sediment flocculate is made the high concentration waste residue by filter press, after connection fully mixes by double roller mixer with the broken thin raw material under the screening dedusting and other non-raw material impurity sand grains etc., carry out steam drying, pulverize granulation again, send into biogas elelctrochemical power generation equipment and living beings gasification heating equipment, produce a large amount of electric energy and heat energies, be back to again in each system equipment and use.
Claims (8)
1, a kind of environment friendly energy-saving circulation type non-pollution pulping process, this technology comprises blank, the screening dedusting, the raw material refinement, the one operation is floated in steaming, defibrination and screening purify, it is characterized in that: steaming is floated the one operation and is comprised the raw material preimpregnation, boiling and bleaching process, it is to add preimpregnation medicament preimpregnation raw material 30-60min earlier that the one operation is floated in described steaming, the preimpregnation temperature is 50-100 ℃, add steaming preparation after the preimpregnation, the oxygen that feeds 0.1-0.3Mpa simultaneously carries out the boiling delignification reaction, reaction time is 45-90min, reaction temperature is 60-100 ℃, the bleaching medicament is continued to add in the intact back of boiling, continue aerating oxygen simultaneously and keep oxygen to press 0.1-0.3Mpa, the bleaching action time is 45-120min, and bleaching temperature is 60-100 ℃.
2, pulping process according to claim 1 is characterized in that: described preimpregnation medicament comprises EDTA 0.2-1%, alkali 0.5-3.5% with the weight percent meter of over dry raw material.
3, pulping process according to claim 1 and 2 is characterized in that: described steaming preparation comprises alkali 2-6%, magnesium sulfate 0.5-2% with the weight percent meter of over dry raw material.
4, according to the described pulping process of one of claim 1-3, it is characterized in that: described bleaching medicament comprises sodium metasilicate 1-5%, alkali 2-6%, hydrogen peroxide 1-4% and magnesium sulfate 0.5-2% with the weight percent meter of over dry raw material.
5, according to the described pulping process of one of claim 14, it is characterized in that: described alkali comprises NaOH, potassium hydroxide and calcium hydroxide.
6, according to the described pulping process of one of claim 1-5, it is characterized in that: described steaming is floated the reaction density of one operation and is counted 15-20% with oven dry stock.
7, according to the described pulping process of one of claim 1-6, it is characterized in that: described pulping process is used for annual various straw or like vegetable raw material and wood type raw material.
8, according to the system and device of one of claim 1-7 described pulping process, this system and device comprises that blank equipment, screening cleaner, raw material divide the silk thinning apparatus, steam and float one pulping equipment, refining equipment, screening cleaning equipment and concentrator, it is characterized in that: described system and device also comprises biochemical materialization treatment facility, pulverizing Granulation Equipments, living beings gasification heating system and living beings gasification power generation system, and the heat energy and the electric energy of generation are back in the environment friendly energy-saving circulation type non-pollution pulping process.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100978682A CN101319471A (en) | 2008-05-20 | 2008-05-20 | Environment friendly energy-saving circulation type non-pollution pulping process and its system apparatus |
| PCT/CN2008/001776 WO2009140808A1 (en) | 2008-05-20 | 2008-10-21 | A process and system for pulping which are environmental protective, energy saving, circulating and green |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100978682A CN101319471A (en) | 2008-05-20 | 2008-05-20 | Environment friendly energy-saving circulation type non-pollution pulping process and its system apparatus |
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| CN101319471A true CN101319471A (en) | 2008-12-10 |
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| CNA2008100978682A Pending CN101319471A (en) | 2008-05-20 | 2008-05-20 | Environment friendly energy-saving circulation type non-pollution pulping process and its system apparatus |
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| WO (1) | WO2009140808A1 (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009140808A1 (en) * | 2008-05-20 | 2009-11-26 | Li Gangrong | A process and system for pulping which are environmental protective, energy saving, circulating and green |
| CN101935555A (en) * | 2010-08-23 | 2011-01-05 | 东莞市飞龙达造纸设备有限公司 | Production process and equipment of one-component and multicomponent biomass solid and liquid fuels |
| CN102154871A (en) * | 2011-02-25 | 2011-08-17 | 李政 | Method for pulping without producing strongly alkaline high-pollution black liquor |
| CN102817262A (en) * | 2011-04-30 | 2012-12-12 | 李刚荣 | High-yield environment-friendly papermaking and pulping process method and system |
| CN103757955A (en) * | 2014-01-06 | 2014-04-30 | 南京林业大学 | Novel alkaline peroxide mechanical pulp technology improving method for improving pulp strength |
| CN104271834A (en) * | 2012-03-13 | 2015-01-07 | 乌维·达格能 | Composition of fibrous material |
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| CN107366191A (en) * | 2017-08-02 | 2017-11-21 | 合肥龙发包装有限公司 | A kind of preparation method of fire resisting insect prevention packing board |
| WO2022061487A1 (en) * | 2020-09-22 | 2022-03-31 | 江苏丰迪科技有限公司 | Fiber pulp feeding device |
| CN113389085B (en) * | 2021-06-29 | 2023-02-10 | 王晓光 | Green and environment-friendly chemi-mechanical pulp soaking additive and method for straw pulping by using same |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU5558196A (en) * | 1995-04-20 | 1996-11-07 | R-J Holding Company | Pulping process |
| CN1621609A (en) * | 2003-11-24 | 2005-06-01 | 梅秀泉 | Integral slurrying method including oxygen delignify and bleaching and apparatus thereof |
| CN101105011B (en) * | 2004-01-17 | 2010-05-12 | 梅秀泉 | Oxygen delignification and bleaching integration paste preparing method and device for realizing the same method |
| CN1844565A (en) * | 2006-04-28 | 2006-10-11 | 湖南泰格林纸集团有限责任公司 | Process for circulation production of wood, plate, pulp, and paper |
| CN101319471A (en) * | 2008-05-20 | 2008-12-10 | 李刚荣 | Environment friendly energy-saving circulation type non-pollution pulping process and its system apparatus |
-
2008
- 2008-05-20 CN CNA2008100978682A patent/CN101319471A/en active Pending
- 2008-10-21 WO PCT/CN2008/001776 patent/WO2009140808A1/en active Application Filing
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009140808A1 (en) * | 2008-05-20 | 2009-11-26 | Li Gangrong | A process and system for pulping which are environmental protective, energy saving, circulating and green |
| CN101935555A (en) * | 2010-08-23 | 2011-01-05 | 东莞市飞龙达造纸设备有限公司 | Production process and equipment of one-component and multicomponent biomass solid and liquid fuels |
| CN102154871A (en) * | 2011-02-25 | 2011-08-17 | 李政 | Method for pulping without producing strongly alkaline high-pollution black liquor |
| CN102154871B (en) * | 2011-02-25 | 2013-06-26 | 李政 | Method for pulping without producing strongly alkaline high-pollution black liquor |
| CN102817262A (en) * | 2011-04-30 | 2012-12-12 | 李刚荣 | High-yield environment-friendly papermaking and pulping process method and system |
| CN102817262B (en) * | 2011-04-30 | 2014-06-04 | 李刚荣 | High-yield environment-friendly papermaking and pulping process method and system |
| CN104271834A (en) * | 2012-03-13 | 2015-01-07 | 乌维·达格能 | Composition of fibrous material |
| CN103757955A (en) * | 2014-01-06 | 2014-04-30 | 南京林业大学 | Novel alkaline peroxide mechanical pulp technology improving method for improving pulp strength |
| CN103757955B (en) * | 2014-01-06 | 2016-08-24 | 南京林业大学 | A kind of APMP technique of improving improves the new method of pulp strength |
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| Publication number | Publication date |
|---|---|
| WO2009140808A1 (en) | 2009-11-26 |
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