CN106400560B - A kind of technique of enzymatic isolation method manufacture paper pulp - Google Patents
A kind of technique of enzymatic isolation method manufacture paper pulp Download PDFInfo
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- CN106400560B CN106400560B CN201610738887.3A CN201610738887A CN106400560B CN 106400560 B CN106400560 B CN 106400560B CN 201610738887 A CN201610738887 A CN 201610738887A CN 106400560 B CN106400560 B CN 106400560B
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- enzymatic isolation
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- 229920001131 Pulp (paper) Polymers 0.000 title claims abstract description 51
- 238000000034 method Methods 0.000 title claims abstract description 42
- 230000002255 enzymatic effect Effects 0.000 title claims abstract description 16
- 238000002955 isolation Methods 0.000 title claims abstract description 16
- 238000004519 manufacturing process Methods 0.000 title claims description 21
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 43
- 238000004537 pulping Methods 0.000 claims abstract description 39
- 239000002994 raw material Substances 0.000 claims abstract description 28
- 239000002002 slurry Substances 0.000 claims abstract description 26
- 239000002245 particle Substances 0.000 claims abstract description 25
- 241000196324 Embryophyta Species 0.000 claims abstract description 22
- 102000004317 Lyases Human genes 0.000 claims abstract description 17
- 108090000856 Lyases Proteins 0.000 claims abstract description 17
- 102000016938 Catalase Human genes 0.000 claims abstract description 14
- 108010053835 Catalase Proteins 0.000 claims abstract description 14
- 241000209504 Poaceae Species 0.000 claims abstract description 13
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 claims abstract description 9
- 238000005202 decontamination Methods 0.000 claims abstract description 8
- 230000003588 decontaminative effect Effects 0.000 claims abstract description 8
- 238000004898 kneading Methods 0.000 claims abstract description 8
- 239000003513 alkali Substances 0.000 claims abstract description 7
- 238000004061 bleaching Methods 0.000 claims abstract description 6
- 238000006243 chemical reaction Methods 0.000 claims abstract description 4
- 238000010438 heat treatment Methods 0.000 claims description 29
- 239000000463 material Substances 0.000 claims description 22
- 239000012752 auxiliary agent Substances 0.000 claims description 20
- 235000014676 Phragmites communis Nutrition 0.000 claims description 10
- 239000011425 bamboo Substances 0.000 claims description 9
- 229920000742 Cotton Polymers 0.000 claims description 7
- 244000299507 Gossypium hirsutum Species 0.000 claims description 7
- 239000002585 base Substances 0.000 claims description 7
- 235000017166 Bambusa arundinacea Nutrition 0.000 claims description 6
- 235000017491 Bambusa tulda Nutrition 0.000 claims description 6
- 235000015334 Phyllostachys viridis Nutrition 0.000 claims description 6
- 239000000654 additive Substances 0.000 claims description 6
- 230000000996 additive effect Effects 0.000 claims description 6
- 239000003638 chemical reducing agent Substances 0.000 claims description 6
- 238000004321 preservation Methods 0.000 claims description 6
- 239000003795 chemical substances by application Substances 0.000 claims description 4
- 239000011229 interlayer Substances 0.000 claims description 4
- 240000006394 Sorghum bicolor Species 0.000 claims description 3
- 235000011684 Sorghum saccharatum Nutrition 0.000 claims description 3
- 235000021307 Triticum Nutrition 0.000 claims description 3
- 230000010354 integration Effects 0.000 claims description 3
- 238000003756 stirring Methods 0.000 claims description 3
- 240000007594 Oryza sativa Species 0.000 claims description 2
- 235000007164 Oryza sativa Nutrition 0.000 claims description 2
- 240000000111 Saccharum officinarum Species 0.000 claims description 2
- 235000007201 Saccharum officinarum Nutrition 0.000 claims description 2
- 240000008042 Zea mays Species 0.000 claims description 2
- 235000005824 Zea mays ssp. parviglumis Nutrition 0.000 claims description 2
- 235000002017 Zea mays subsp mays Nutrition 0.000 claims description 2
- 235000005822 corn Nutrition 0.000 claims description 2
- 238000007670 refining Methods 0.000 claims description 2
- 235000009566 rice Nutrition 0.000 claims description 2
- 244000082204 Phyllostachys viridis Species 0.000 claims 1
- 244000098338 Triticum aestivum Species 0.000 claims 1
- 230000035484 reaction time Effects 0.000 claims 1
- 230000008569 process Effects 0.000 abstract description 17
- 239000007788 liquid Substances 0.000 abstract description 4
- 238000007599 discharging Methods 0.000 abstract description 2
- 239000000123 paper Substances 0.000 description 20
- 239000010902 straw Substances 0.000 description 15
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 10
- 238000002156 mixing Methods 0.000 description 8
- 239000000126 substance Substances 0.000 description 8
- 239000000835 fiber Substances 0.000 description 7
- 230000032258 transport Effects 0.000 description 6
- 239000002699 waste material Substances 0.000 description 6
- 241001330002 Bambuseae Species 0.000 description 5
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical class [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 5
- 239000003814 drug Substances 0.000 description 5
- 239000004576 sand Substances 0.000 description 5
- 235000011121 sodium hydroxide Nutrition 0.000 description 5
- 238000003860 storage Methods 0.000 description 5
- 244000046109 Sorghum vulgare var. nervosum Species 0.000 description 4
- 229940079593 drug Drugs 0.000 description 4
- 238000005265 energy consumption Methods 0.000 description 4
- 238000004140 cleaning Methods 0.000 description 3
- 239000010410 layer Substances 0.000 description 3
- 238000012544 monitoring process Methods 0.000 description 3
- 239000007921 spray Substances 0.000 description 3
- 244000025254 Cannabis sativa Species 0.000 description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 2
- 241000209140 Triticum Species 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- 239000002518 antifoaming agent Substances 0.000 description 2
- 238000009835 boiling Methods 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 229910052739 hydrogen Inorganic materials 0.000 description 2
- 239000001257 hydrogen Substances 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012806 monitoring device Methods 0.000 description 2
- 150000002978 peroxides Chemical class 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 230000004044 response Effects 0.000 description 2
- 241000609240 Ambelania acida Species 0.000 description 1
- 229920002488 Hemicellulose Polymers 0.000 description 1
- 240000006240 Linum usitatissimum Species 0.000 description 1
- 235000004431 Linum usitatissimum Nutrition 0.000 description 1
- 241000274582 Pycnanthus angolensis Species 0.000 description 1
- 244000062793 Sorghum vulgare Species 0.000 description 1
- 230000003078 antioxidant effect Effects 0.000 description 1
- 239000010905 bagasse Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000012993 chemical processing Methods 0.000 description 1
- 239000013064 chemical raw material Substances 0.000 description 1
- 239000000356 contaminant Substances 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004945 emulsification Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000005530 etching Methods 0.000 description 1
- 235000013305 food Nutrition 0.000 description 1
- 229910001385 heavy metal Inorganic materials 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 239000010842 industrial wastewater Substances 0.000 description 1
- 229920005610 lignin Polymers 0.000 description 1
- 235000019713 millet Nutrition 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 239000011087 paperboard Substances 0.000 description 1
- 239000000447 pesticide residue Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 239000005418 vegetable material Substances 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
Classifications
-
- 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
- D21B—FIBROUS RAW MATERIALS OR THEIR MECHANICAL TREATMENT
- D21B1/00—Fibrous raw materials or their mechanical treatment
- D21B1/02—Pretreatment of the raw materials by chemical or physical means
-
- 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
- D21B1/06—Fibrous raw materials or their mechanical treatment by dividing raw materials into small particles, e.g. fibres by dry methods
- D21B1/061—Fibrous raw materials or their mechanical treatment by dividing raw materials into small particles, e.g. fibres by dry methods using cutting devices
-
- 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
- D21C7/10—Heating devices
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Biochemistry (AREA)
- Microbiology (AREA)
- Wood Science & Technology (AREA)
- Paper (AREA)
Abstract
The invention discloses the techniques that a kind of enzymatic isolation method manufactures paper pulp, include the following steps：(1) using the stalk of herbaceous plant and/or gramineae plant as raw material, segment, decontamination simultaneously cleans；(2) stalk section of clean herbaceous plant and/or gramineae plant is sent into chopping in wire kneading machine and obtains particle；(3) particle is added after water mixes and is sent into pulper, simultaneously alkali is added and lyases carries out enzymolysis slurrying in heat temperature raising；(4) catalase reaction is added 10 ~ 30 minutes, removes the hydrogen peroxide of plant cell, bleaching is carried out to slurry；(5) slurry pH value is adjusted to 67, pulp.Paper pulp successively is made after lyases and catalase enzymolysis using the stalk of herbaceous plant and/or gramineae plant as raw material in the technique, and the pulping process used time is short, rate height is slurried, and without black liquid discharging.
Description
Technical field
The present invention relates to the techniques that a kind of enzymatic isolation method manufactures paper pulp.
Background technology
In the prior art, paper industry is one of six big contaminated industries in the world.China's paper industry year waste discharge
Amount accounts for the 1/6 of national discharged volume of industrial waste water up to 4,000,000,000 tons.In the process for carrying out chemical pulping and chemical bleaching with vegetable material
In, the waste liquid containing a large amount of lignin, hemicellulose and harmful substance is dumped into rivers and lakes, causes serious environment dirty
Dye and ecological disruption.In existing paper technology, slurrying and bleaching process are the master operations that aforementioned contaminants generate, due to
The energy consumption of ground wood pulp is big in mechanical pulping process and finished product paper quality be not so good as with the method for chemistry or half chemical processing paper pulp at
Product paper quality so that current paper mill still generally uses the method slurrying of chemistry or half chemical, that is, uses highly basic boiling will be former
Material, the fibre plants such as timber, straw, straw, bagasse, reed, waste of flax, cotton stem isolate fiber, to obtain paper
Pulp fibres.
Have the shortcomings that in existing pulping technique following：
(1) etching apparatus：The above method will consume a large amount of acid, alkali, salt, and will long time treatment at high temperature under high pressure,
The production equipments such as rotary spherical digester are easy to be corroded.
Pollute environment：A large amount of alkaline waste water (black liquor) is will produce in process of production, if being directly discharged to the Nature
In, the serious environmental pollutions such as pollution, the soil hardening to water source can be caused.
Energy consumption is big：The pulping raw material stage is handled due to the use of strong acid and strong base and is all needed with a large amount of water after bleaching stage
It washs repeatedly, so not only power consumption but also water consumption.
Production cost is high：Black liquor needs to be recycled, and not only reclaimer investment is big, but also the operating cost of pollution treatment instrument is high
It is high, thus cause the raising of production cost.
Utilization rate is low：Use the utilization rate of the raw material of prior art processing for 40~45%.
Mixing time is long, it usually needs 6 ~ 8 hours.
Paper pulp Year's consumption in China's is at more than 7,000 ten thousand tons at present, and paper pulp basic need is from external import, and paper pulp market is not for
It should ask.And straw pulp cost is less than wood pulp, if making full use of herbaceous plant and/or gramineae plant slurrying, that will alleviate China
The inlet pressure of wood pulp.But at present using grass as raw material, traditional chemical pulping technique is mostly used, pollution discharge is extremely serious,
And chemical raw material destroys the fiber of grass, not only goes outSlurryRate is low, and reduces the quality of straw pulp and finished paper, thus at present
Straw pulp can only produce the low grade products such as boxboard, corrugated paper, tiling paper, toilet paper, low-grade writing paper, sacrificial paper, it is difficult to it is full
Sufficient China market demand.
Invention content
The object of the present invention is to provide the technique that a kind of environmental protection, low cost, efficient enzymatic isolation method manufacture paper pulp, the technique with
The stalk of herbaceous plant and/or gramineae plant is raw material, and paper pulp, system successively is made after lyases and catalase enzymolysis
The slurry process used time is short, rate height is slurried, and without black liquid discharging.
The purpose of the present invention is what is realized by following technical measures：A kind of technique of enzymatic isolation method manufacture paper pulp, including
Following steps：
(1) using the stalk of herbaceous plant and/or gramineae plant as raw material, segment, decontamination simultaneously cleans；
(2) stalk section of clean herbaceous plant and/or gramineae plant is sent into chopping in wire kneading machine and obtains particle；
(3) particle is added after water mixes and is sent into pulper, simultaneously alkali and lyases progress is added in heat temperature raising
Digest slurrying；
(4) catalase reaction is added 10 ~ 30 minutes, removes the hydrogen peroxide of plant cell, slurry is bleached
Processing；
(5) slurry pH value is adjusted to 6-7, pulp.
The invention also includes refining steps, i.e., the slurry come out from pulper, can be with using the emulsification of high-density paste mill defibrination
Obtain finer and smoother paper pulp.
The invention also includes paper pulp finished product making steps, that is, use pulp machine by paper pulp manufactured Board, particle or starchiness, side
Just it stores and transports.
The stalk of draft/gramineae plant of the present invention include reed, bamboo, wheat, corn, rape, cotton, sugarcane,
The agricultural crop straws such as rice, sorghum.
The additive amount of lyases of the present invention is the 0.1 ~ 1% of raw material dry weight.
The additive amount of catalase of the present invention is the 2 ~ 12% of raw material dry weight.
In step (3) of the present invention, the ratio of particle and water is 1 ﹕ 4 ~ 6.
In step (3) of the present invention, the material that particle and water are constituted is heated to 40 ~ 110 DEG C, lyases is anti-with material
30 ~ 60 minutes between seasonable.
In step (4) of the present invention, if there are many bubbles in paper pulp, antifoaming agent can be added in paper pulp and remove bubble removing.Institute
The additive amount for the antifoaming agent stated only needs that bubble removing can be removed.PH regulators can be added in step (4), promote anti-oxidant
Effect, prevents slurry rancid；With complex, have prevent oxidation or take off become reaction, stable color, reduction turbidity,
Enhance gelling characteristic.The additive amount of the regulator is raw material dry weight 0.1 ~ 2%.
Currently, machinery pulping and chemical pulping process are required to carry out boiling, shove, pulp washing, the processes such as bleaching, and per pass
Process can use corresponding equipment, and not only equipment is huge, and production line cost of investment is high, and need substep to carry out in slurrying,
It operates relatively complicated.The present inventor devises a kind of integration system pulp grinder, more convenient for the implementation of the method for the present invention.Specifically,
The pulper includes pulping tank, auxiliary agent pipe, heating device and at least one blender；The pulping tank includes tank body and cover,
Feed inlet is set on the cover, and discharge port is arranged in the tank base, and the blender includes agitating paddle and driving device, institute
It states agitating paddle to be mounted in tank body in the vertical direction, both ends are separately mounted on cover and the bearing of tank base, described to stir
The agitating shaft upper end for mixing paddle is pierced by cover and connect with the driving device on the cover, and the heating device setting is in tank body
Interior, the auxiliary agent pipe is arranged in tank body, and drug entering side extend out to outside tank body from tank body top and connect with auxiliary agent feedway.
When carrying out slurrying using pulper provided by the invention, the mixed material that raw material and water are constituted can be put into pulping tank from feed inlet
Interior, material is heated to preset temperature by heating device, and is started agitating paddle and be stirred, according to response hierarchy in pulping process
Alkali, lyases and the auxiliary agents such as catalase and regulator are added from auxiliary agent pipe.
The agitating shaft of the agitating paddle is hollow tube, and the hollow tube upper port with vapour source for connecting, hypomere tube body
Tube wall on several steam holes are set, steam be passed through into the hollow pipeline when pulping raw material needs heating carry out heating and rise
Temperature, to constitute the heating device of the present invention, such design is not only simple in structure, and keeps the structure of pulping tank more simple, and
And this clean energy resource of steam can be used, reduce energy consumption.
As an embodiment of the present invention, the blade of the agitating paddle is distributed in agitating shaft middle and lower sections, and accounts for agitating shaft
2/3 height.
Blender of the present invention is two sets, and the distance between agitating shaft central axes of the agitating paddle of two sets of blenders are tank
The half of body diameter；The blade width of single agitating paddle accounts for about 1/6th of entire tank body.
Agitating paddle of the present invention is ribbon flight agitating paddle, and blade helical angle is 52 °, is conducive to material and is helped with various
Agent is sufficiently mixed.
The drug entering side of auxiliary agent pipe of the present invention is equipped with several interfaces, for being connected from different auxiliary agent feedways.
Further, the pulper further includes cleaning device, which includes annular water inlet pipe and be arranged in ring
Several nozzles on shape water inlet pipe are constituted, and all water inlet pipes settings are pierced by outside tank body and water supply installation in top of the tank its water inlet end
Connection, the nozzle are uniformly distributed along annular water inlet pipe circumferential direction, spray water after pulp and rinse the slurry on tank skin,
Not only pulper is cleaned, but also slurry is avoided to waste.
Further, the pulper further includes spare heating device, for being not enough to short in agitating shaft supply steam
When rising to preset temperature in the time, the spare heating device is enabled, increases quantity of steam, achievees the purpose that fast heating.It is described standby
It is made of with heating device at least 4 steam pipes being connect with external steam source, the steam pipe is axially disposed in tank body
It is uniformly distributed on wall and along tank body circumferential direction, steam hole is arranged in the hypomere tube body of the steam pipe.
Tank body middle part of sliding channel of the present invention is equipped with casing, and it is interior and to tank body center that the front end of the casing is located at tank body
Line extends, and temperature monitoring unit is placed in described sleeve pipe, is used to monitor the temperature of material when slurrying.The temperature monitoring device is
Thermometer or temperature sensor.
Further, steam drain is also set up on the tank body of the pulping tank.
The side wall of the tank body is double-layer structure, and heat-preservation cotton is equipped in interlayer.
The invention also includes automatic control devices, for controlling medicine feeding apparatus, agitating device etc..
The present invention has following beneficial effect compared with prior art：
(1) present invention is common by lyases and a small amount of alkali using the stalk of herbaceous plant and/or gramineae plant as raw material
Effect makes the fluffy softening of plant fiber, obtains fiber.The entire technique used time is short, and rate height is slurried, and not black in process of production
Liquid generates, and avoids the pollution to environment.
(2) for slurry made of the present invention without being rinsed with water repeatedly, entire pulping process water consumption is traditional handicraft
10%。
(3) the chemical assistant dosage that uses of the present invention is considerably less, is only the 0.5% of traditional handicraft, plant fiber not by
To destruction, fiber is long in slurry, and manufactured paper folding resistance is strong.
(4) paper pulp produced by the present invention is free of pesticide residue, heavy metal is free of, in nature after manufactured product is discarded
It 90 days or so in boundary can be degradable.
(5) the paper brightness of gained pulp manufacture is at 80 degree or more.
(6) gained paper pulp raw material is easy to preserve, and can for a long time preserve, will not occur mould in the case of room temperature and ventilation
Become, the holding time is 1 year.
(7) gained paper pulp raw material is especially suitable for making except currency type paper, the special paper products of in addition to paper, as chancery paper,
Package paper, cutlery box, food wrapper, paper bag etc..
(8) present invention uses the stalk of herbaceous plant and/or gramineae plant for raw material, and water consumption is few, and slurrying is at low cost,
It is only the 60% of traditional chemical slurrying cost.
(9) present invention uses dedicated pulper, integrates and adds agent, heating and slurrying automatically, in an equipment
It is low can to complete work, the costs of investment such as mixing, heat temperature raising and the slurrying of material and auxiliary agent.
(10) pulper provided by the invention is mainly made of pulping tank, heating device and agitating device, and pulping tank is equipped with
Auxiliary agent pipe can require that corresponding pulping agents are added from the auxiliary agent pipe according to pulping process.Heating device is to the original in pulping tank
Material carries out heat temperature raising, and agitating device is then uniformly mixed on the one hand material and auxiliary agent, is on the other hand turned in heat temperature raising
Animal material is allowed to be heated evenly.
(11) agitating shaft of agitating device of the invention is the hollow tube being connected to vapour source, is arranged on hypomere tube body
Several steam holes, when carrying out slurrying steam can be passed through into material heats up, which constitutes the heating dress of the present invention
It sets, makes pulper structure more simple and compact.
(12) present invention also sets up cleaning device, sprays water after pulp and rinses the slurry on tank skin, both cleaned
Pulper, and slurry is avoided to waste.
(13) present invention also sets up spare heating device, for being not enough to rise in a short time in agitating shaft supply steam
When to preset temperature, the spare heating device is enabled, increases quantity of steam, achievees the purpose that fast heating.The spare heating device
It is made of at least 4 steam pipes, is heated, be not only simple in structure using steam, and use clean energy resource, reduce energy consumption.
(14) two sets of blenders of present invention setting, the distance between agitating shaft central axes of two sets of blenders are that tank body is straight
The half of diameter, and the blade width of single each agitating paddle accounts for about 1/6th of entire tank body, is more advantageous to material in this way
It stirs, material mixing is made to be more uniformly distributed.
(15) side wall of pulping tank of the invention is double-layer structure, is equipped with heat-preservation cotton in interlayer, strengthens heat-insulating property.
Description of the drawings
Fig. 1 is the sectional view of pulper of the present invention；
Fig. 2 is pulper bottom surface of the present invention schematic diagram.
Specific implementation mode
Pulper as illustrated in fig. 1 and 2 is the pulper that the following embodiments of the present invention are used comprising pulping tank 1, auxiliary agent
Pipe 2, heating device and two sets of blenders.Pulping tank 1 includes tank body and cover, and feed inlet 4 is arranged on cover, is set at feed inlet 4
Set one-way cover.The side wall of tank body is double-layer structure, and heat-preservation cotton is equipped in interlayer, and four support legs 14 and two are arranged in tank base
A bearing 15, middle part are provided material mouth 6, autocontrol valve are arranged at discharge port 6.Two sets of blenders include agitating paddle 3
And driving device.Often the driving device of set blender is made of motor 11 and speed reducer 12.The agitating paddle 3 of each set blender is along perpendicular
It is mounted in tank body to direction, both ends are separately mounted on cover and the bearing 15 of tank base, the agitating shaft 31 of agitating paddle 3
Upper end is pierced by cover and connect the agitating shaft 31 of agitating paddle 3 with the speed reducer 12 being arranged on cover for hollow tube, on the hollow tube
Port and being connected into vapour interface 13 above speed reducer, for being connected to vapour source.The pipe of the hypomere pipeline section of the hollow tube
Several steam holes 33 are set on wall, being passed through steam into the hollow tube when pulping raw material needs heating carries out heat temperature raising,
Then agitating shaft constitutes the heating device of the present embodiment.In the present embodiment between the center line of the agitating shaft 31 of two sets of blenders
Distance is the half of tank diameter；32 width of uniaxial blade accounts for about 1/6th of entire tank body.The paddle of each agitating paddle 3
Leaf 32 is distributed in 31 middle and lower sections of agitating shaft, and accounts for the height of agitating shaft 2/3.Agitating paddle 3 is ribbon flight agitating paddle, blade 32
Helical angle is 52 °, is conducive to material and is sufficiently mixed with various auxiliary agents.Auxiliary agent pipe 2 is arranged in tank body, and drug entering side is from tank body
Portion extend out to outside tank body and is connect with auxiliary agent feedway.The drug entering side of auxiliary agent pipe 2 is equipped with several interfaces, for being supplied from different auxiliary agents
It is connected to device.
The present embodiment also sets up cleaning device, which includes annular water inlet pipe 10 and be arranged on annular water inlet pipe
Several nozzles 9 constitute, the setting of annular water inlet pipe 10 is pierced by top of the tank its water inlet end outside tank body to be connect with water supply installation, institute
There is nozzle 9 to be uniformly distributed along the circumferential direction of annular water inlet pipe 10, sprays water after pulp and rinse the slurry on tank skin, both
Pulper is cleaned, and slurry is avoided to waste.
The present embodiment also sets up spare heating device, pre- for being not enough to rise in a short time in agitating shaft supply steam
If when temperature, enabling the spare heating device, increases quantity of steam, achieve the purpose that fast heating.The spare heating device is by extremely
Few 4 steam pipes 7 are constituted, and steam pipe 7 is axially mounted in inner tank wall and is uniformly distributed along tank body circumferential direction, steam pipe 7
Hypomere tube body be arranged steam hole 8.
The tank body middle part of sliding channel of the pulping tank of the present embodiment is equipped with casing 5, and the front end of the casing 5 is located in tank body simultaneously
Extend to tank body center line, internal to place temperature monitoring unit (not shown), temperature when slurrying for monitoring material.
Temperature monitoring device is thermometer or temperature sensor.
Steam drain (not shown) can be set in the present embodiment on the tank body of pulping tank 1, tank can be expelled upon
Interior excess steam.
When carrying out slurrying using pulper provided by the invention, the mixed material that raw material and water are constituted can be from feed inlet 4
It is put into pulping tank 1, be passed through steam toward agitating shaft is heated to preset temperature by material, and starts agitating paddle 3 and be stirred, and makes
The auxiliary agents such as alkali, lyases and catalase and regulator are added during slurry from auxiliary agent pipe according to response hierarchy.Slurrying
After, discharge port is opened, slurry is discharged.
Embodiment one
(1) using wheat-straw as raw material, segment, long 0.5-1cm, dedusting goes sand, decontamination simultaneously to clean；
(2) clean wheat-straw section is sent into chopping in wire kneading machine and obtains wheat straw particle；
(3) wheat-straw is pressed in wheat-straw particle：Water=1:Water mixing is added in 5 ratio, is then fed into pulper, by every
Ton wheat-straw calculates 30 kilogram sodium hydroxides of addition and 1 kilogram of lyases, is heated to 80 DEG C, keeps the temperature slurrying 60 minutes, slurrying
The blender of slurrying is stirred with the 13-30 per minute rotating speeds turned in journey；
(4) it presses wheat-straw per ton and calculates 20 kilograms of catalases of addition, react 15 minutes, remove the mistake of plant cell
Hydrogen oxide；
(5) pulp-water pH value is adjusted to 6-7, pulp, pulping rate 95%, 80 or more whiteness with hydrochloric acid；
(6) slurry come out from pulper is emulsified by high-density paste mill defibrination, obtains finer and smoother paper pulp；
(7) it uses pulp machine by paper pulp manufactured Board, particle or starchiness finished product, facilitates storage and transport.
Embodiment two
(1) using reed as raw material, segment, long 0.5-1cm, dedusting goes sand, decontamination simultaneously to clean；
(2) clean reed section is sent into chopping in wire kneading machine and obtains reed particle；
(3) reed is pressed in reed particle:Water=1:Water mixing is added in 5 ratio, is then fed into pulper, by per ton
Reed calculates 50 kilogram sodium hydroxides of addition and 10 kilograms of lyases, is heated to 80 DEG C, heat preservation slurrying 60 minutes, in pulping process
The blender of slurrying is stirred with the 13-30 per minute rotating speeds turned；
(4) it presses reed per ton and calculates 50 kilograms of catalases of addition, react 15 minutes, remove the peroxide of plant cell
Change hydrogen；
(5) pulp-water pH value is adjusted to 6-7, pulp, pulping rate 95%, 80 or more whiteness with hydrochloric acid；
(6) slurry come out from pulper is emulsified by high-density paste mill defibrination, obtains finer and smoother paper pulp；
(7) it uses pulp machine by paper pulp manufactured Board, particle or starchiness finished product, facilitates storage and transport.
Embodiment three
(1) using kaoliang stalk as raw material, segment, long 0.5-1cm, dedusting goes sand, decontamination simultaneously to clean；
(2) clean sorghum rod segment is sent into chopping in wire kneading machine and obtains crushed straw aggregate；
(3) it will be sent into pulper in kaoliang stalk particle, by kaoliang stalk:Water=1:Water is added in 6 ratio, by height per ton
Fine strain of millet bar calculates 30 kilogram sodium hydroxides of addition and 9 kilograms of lyases, is heated to 70 DEG C, heat preservation slurrying 55 minutes, in pulping process
The blender of slurrying is stirred with the 13-30 per minute rotating speeds turned；
(4) it presses kaoliang stalk per ton and calculates 50 kilograms of catalases of addition, react 15 minutes, remove the mistake of plant cell
Hydrogen oxide；
(5) pulp-water pH value is adjusted to 6-7, pulp, pulping rate 95%, 80 or more whiteness with hydrochloric acid；
(6) slurry come out from pulper is emulsified by high-density paste mill defibrination, obtains finer and smoother paper pulp；
(7) it uses pulp machine by paper pulp manufactured Board, particle or starchiness finished product, facilitates storage and transport.
Example IV
(1) withBambooFor raw material, segment, long 0.5-1cm are processed, dedusting goes sand, decontamination simultaneously to clean；
(2) it cleansBambooSection is sent into chopping in wire kneading machine and obtains bamboo particle；
(3) it is pressed in bamboo particleBamboo:Water=1:Water mixing is added in 5 ratio, is then fed into pulper, by per ton
Bamboo calculates 50 kilogram sodium hydroxides of addition and 20 kilograms of lyases, is heated to 110 DEG C, keeps the temperature slurrying 60 minutes, pulping process
The blender of middle slurrying is stirred with the 13-30 per minute rotating speeds turned；
(4) it presses bamboo per ton and calculates 60 kilograms of catalases of addition, react 30 minutes, remove the peroxide of plant cell
Change hydrogen；
(5) paper pulp pH value is adjusted to 6-7, pulp, pulping rate 95%, 80 or more whiteness with hydrochloric acid；
(6) the paper pulp high-density paste mill defibrination come out from pulper emulsifies, and obtains finer and smoother paper pulp；
(7) it uses pulp machine by paper pulp manufactured Board, particle or starchiness finished product, facilitates storage and transport.
Embodiment five
(1) using cornstalk as raw material, segment, long 0.5-1cm, dedusting goes sand, decontamination simultaneously to clean；
(2) clean stalk section is sent into chopping in wire kneading machine and obtains crushed straw aggregate；
(3) cornstalk is pressed in cornstalk particle:Water=1:Water mixing is added in 5 ratio, is then fed into pulper, presses
Cornstalk per ton calculates 40 kilogram sodium hydroxides of addition and 10 kilograms of lyases, is heated to 98 DEG C, keeps the temperature slurrying 60 minutes, slurrying
The blender of slurrying is stirred with the 13-30 per minute rotating speeds turned in the process；
(4) it presses cornstalk per ton and calculates 50 kilograms of catalases of addition, react 20 minutes, remove the mistake of plant cell
Hydrogen oxide；
(5) paper pulp pH value is adjusted to 6-7, pulp, pulping rate 95%, 80 or more whiteness with hydrochloric acid；
(6) the paper pulp high-density paste mill defibrination come out from pulper emulsifies, and obtains finer and smoother paper pulp；
(7) it uses pulp machine by paper pulp manufactured Board, particle or starchiness finished product, facilitates storage and transport.
The present invention can be summarized with others without prejudice to the concrete form of the spirit or essential characteristics of the present invention.The present invention's
Above-described embodiment can only all be considered the description of the invention rather than limit that every substantial technological according to the present invention is to above
Any subtle modifications, equivalent variations and modifications, belong in the range of technical solution of the present invention made by embodiment.
Claims (10)
1. a kind of technique of enzymatic isolation method manufacture paper pulp, characterized in that include the following steps：
(1) using the stalk of herbaceous plant and/or gramineae plant as raw material, segment, decontamination simultaneously cleans；
(2) stalk section of clean herbaceous plant and/or gramineae plant is sent into chopping in wire kneading machine and obtains particle；
(3) particle is added after water mixes and is sent into integration system pulp grinder, simultaneously alkali and lyases progress is added in heat temperature raising
Digest slurrying；
(4) catalase reaction is added 10 ~ 30 minutes, removes the hydrogen peroxide of plant cell, slurry is carried out at bleaching
Reason；
(5) slurry pH value is adjusted to 6-7, pulp；
The integration system pulp grinder includes pulping tank（1）, auxiliary agent pipe（2）, heating device and two sets of blenders；Pulping tank（1）
Including tank body and cover, feed inlet is set on cover（4）, feed inlet（4）Place's setting one-way cover；The side wall of tank body is double-deck ties
Structure, heat-preservation cotton is equipped in interlayer, and four support legs are arranged in tank base（14）And two bearings（15）, material is provided in middle part
Mouthful（6）, discharge port（6）Place's setting autocontrol valve；Two sets of blenders include agitating paddle（3）And driving device；Often set stirs
The driving device of device is mixed by motor（11）And speed reducer（12）It constitutes；The agitating paddle of each set blender（3）It installs in the vertical direction
In tank body, both ends are separately mounted to cover and the bearing of tank base（15）On, agitating paddle（3）Agitating shaft（31）Upper end
Portion is pierced by cover and the speed reducer on setting cover（12）Connection；Agitating paddle（3）Agitating shaft（31）For hollow tube, the hollow tube
Upper port with above the speed reducer into vapour interface（13）Connection, for being connected to vapour source；The hypomere pipeline section of the hollow tube
Tube wall on several steam holes are set（33）, when pulping raw material needs heating toward agitating shaft（31）In be passed through steam and heated
Heating, agitating shaft（31）Constitute heating device.
2. the technique for manufacturing paper pulp according to claim 1 enzymatic isolation method, characterized in that the stalk of the draft/gramineae plant includes
Reed, bamboo, wheat, corn, rape, cotton, sugarcane, rice or sorghum stalk.
3. the technique for manufacturing paper pulp according to claim 1 enzymatic isolation method, characterized in that further include refining step, i.e., go out from pulper
The slurry come is emulsified using high-density paste mill defibrination, obtains finer and smoother paper pulp.
4. the technique for manufacturing paper pulp according to claim 3 enzymatic isolation method, characterized in that further include paper pulp finished product making step, that is, adopt
With pulp machine by paper pulp manufactured Board, particle or starchiness.
5. the technique for manufacturing paper pulp according to claims 1 or 2 or 3 or 4 enzymatic isolation methods, characterized in that the addition of the lyases
Amount is the 0.1 ~ 1% of raw material dry weight.
6. the technique for manufacturing paper pulp according to claim 5 enzymatic isolation method, characterized in that the additive amount of the catalase is raw material
The 2 ~ 12% of dry weight.
7. the technique for manufacturing paper pulp according to claim 6 enzymatic isolation method, characterized in that in the step (3), the ratio of particle and water
For 1 ﹕ 4 ~ 6.
8. the technique for manufacturing paper pulp according to claim 6 enzymatic isolation method, characterized in that in the step (3), particle and water are constituted
Material be heated to 40 ~ 110 DEG C, lyases and 30 ~ 60 minutes material reaction time.
9. the technique for manufacturing paper pulp according to claim 6 enzymatic isolation method, characterized in that in the step (4), defoaming is added in slurry
Bubble removing is removed in agent.
10. the technique for manufacturing paper pulp according to claim 6 enzymatic isolation method, characterized in that in the step (4), pH is added in slurry
The additive amount of regulator, the pH regulators is raw material dry weight 0.1 ~ 2%.
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|---|---|---|---|---|
| US5620565A (en) * | 1994-06-29 | 1997-04-15 | Kimberly-Clark Corporation | Production of soft paper products from high and low coarseness fibers |
| CN101210394A (en) * | 2006-12-29 | 2008-07-02 | 汪官久 | Production process of pure biological paper pulp |
| CN102230288A (en) * | 2011-07-08 | 2011-11-02 | 李树泉 | Straw bio-enzyme degradation aid and degradation pulping process |
| CN102277761A (en) * | 2011-07-19 | 2011-12-14 | 中国制浆造纸研究院 | Method for preparing oligosaccharide and paper pulp |
| CN103174047A (en) * | 2013-04-16 | 2013-06-26 | 枣庄鸿润纸业有限公司 | Process for refining wheat-straw pulp by hydrogen peroxide enzyme method |
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5620565A (en) * | 1994-06-29 | 1997-04-15 | Kimberly-Clark Corporation | Production of soft paper products from high and low coarseness fibers |
| CN101210394A (en) * | 2006-12-29 | 2008-07-02 | 汪官久 | Production process of pure biological paper pulp |
| CN102230288A (en) * | 2011-07-08 | 2011-11-02 | 李树泉 | Straw bio-enzyme degradation aid and degradation pulping process |
| CN102277761A (en) * | 2011-07-19 | 2011-12-14 | 中国制浆造纸研究院 | Method for preparing oligosaccharide and paper pulp |
| CN103174047A (en) * | 2013-04-16 | 2013-06-26 | 枣庄鸿润纸业有限公司 | Process for refining wheat-straw pulp by hydrogen peroxide enzyme method |
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