CN109024044A - It is a kind of to prepare the method for paper pulp, the paper pulp of preparation and application with water lettuce - Google Patents
It is a kind of to prepare the method for paper pulp, the paper pulp of preparation and application with water lettuce Download PDFInfo
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- CN109024044A CN109024044A CN201810890265.1A CN201810890265A CN109024044A CN 109024044 A CN109024044 A CN 109024044A CN 201810890265 A CN201810890265 A CN 201810890265A CN 109024044 A CN109024044 A CN 109024044A
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- water
- paper pulp
- mashing
- lettuce
- pulp
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- 229920001131 Pulp (paper) Polymers 0.000 title claims abstract description 79
- 244000207867 Pistia stratiotes Species 0.000 title claims abstract description 77
- 235000006440 Pistia stratiotes Nutrition 0.000 title claims abstract description 77
- 238000000034 method Methods 0.000 title claims abstract description 51
- 238000002360 preparation method Methods 0.000 title claims description 13
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 107
- 239000000835 fiber Substances 0.000 claims abstract description 79
- 238000005360 mashing Methods 0.000 claims abstract description 71
- 239000002002 slurry Substances 0.000 claims abstract description 41
- 238000009835 boiling Methods 0.000 claims abstract description 29
- 238000000926 separation method Methods 0.000 claims abstract description 12
- 229920002678 cellulose Polymers 0.000 claims description 13
- 239000001913 cellulose Substances 0.000 claims description 13
- 238000010438 heat treatment Methods 0.000 claims description 11
- 238000005453 pelletization Methods 0.000 claims description 8
- 238000005516 engineering process Methods 0.000 abstract description 6
- 238000004537 pulping Methods 0.000 abstract description 5
- 230000007613 environmental effect Effects 0.000 abstract description 4
- 239000002351 wastewater Substances 0.000 abstract description 4
- 230000033228 biological regulation Effects 0.000 abstract description 3
- 239000003795 chemical substances by application Substances 0.000 abstract description 2
- 239000000126 substance Substances 0.000 abstract description 2
- 239000000047 product Substances 0.000 description 13
- 239000002994 raw material Substances 0.000 description 12
- 238000010009 beating Methods 0.000 description 9
- 238000003860 storage Methods 0.000 description 9
- 238000004519 manufacturing process Methods 0.000 description 8
- 239000000243 solution Substances 0.000 description 7
- 241000169203 Eichhornia Species 0.000 description 6
- 230000000052 comparative effect Effects 0.000 description 5
- 238000001035 drying Methods 0.000 description 4
- 240000003826 Eichhornia crassipes Species 0.000 description 3
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 3
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- 239000003054 catalyst Substances 0.000 description 3
- 239000002537 cosmetic Substances 0.000 description 3
- 239000008236 heating water Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000000465 moulding Methods 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- UIIMBOGNXHQVGW-UHFFFAOYSA-M Sodium bicarbonate Chemical compound [Na+].OC([O-])=O UIIMBOGNXHQVGW-UHFFFAOYSA-M 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 2
- 230000003796 beauty Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 239000000284 extract Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000004806 packaging method and process Methods 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 210000002966 serum Anatomy 0.000 description 2
- 238000005406 washing Methods 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- RSWGJHLUYNHPMX-UHFFFAOYSA-N Abietic-Saeure Natural products C12CCC(C(C)C)=CC2=CCC2C1(C)CCCC2(C)C(O)=O RSWGJHLUYNHPMX-UHFFFAOYSA-N 0.000 description 1
- 239000004925 Acrylic resin Substances 0.000 description 1
- 229920000178 Acrylic resin Polymers 0.000 description 1
- 241001093951 Ailanthus altissima Species 0.000 description 1
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 1
- 235000017491 Bambusa tulda Nutrition 0.000 description 1
- 229920000742 Cotton Polymers 0.000 description 1
- 241000169076 Monochoria korsakowii Species 0.000 description 1
- 240000002853 Nelumbo nucifera Species 0.000 description 1
- 235000006508 Nelumbo nucifera Nutrition 0.000 description 1
- 235000006510 Nelumbo pentapetala Nutrition 0.000 description 1
- 244000082204 Phyllostachys viridis Species 0.000 description 1
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 1
- 239000004372 Polyvinyl alcohol Substances 0.000 description 1
- KHPCPRHQVVSZAH-HUOMCSJISA-N Rosin Natural products O(C/C=C/c1ccccc1)[C@H]1[C@H](O)[C@@H](O)[C@@H](O)[C@@H](CO)O1 KHPCPRHQVVSZAH-HUOMCSJISA-N 0.000 description 1
- 240000008042 Zea mays Species 0.000 description 1
- 235000005824 Zea mays ssp. parviglumis Nutrition 0.000 description 1
- 235000002017 Zea mays subsp mays Nutrition 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 239000011425 bamboo Substances 0.000 description 1
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 description 1
- 239000000920 calcium hydroxide Substances 0.000 description 1
- 229910001861 calcium hydroxide Inorganic materials 0.000 description 1
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 235000005822 corn Nutrition 0.000 description 1
- 235000019784 crude fat Nutrition 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 229960000935 dehydrated alcohol Drugs 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 235000005911 diet Nutrition 0.000 description 1
- 230000037213 diet Effects 0.000 description 1
- 238000010790 dilution Methods 0.000 description 1
- 239000012895 dilution Substances 0.000 description 1
- FPAFDBFIGPHWGO-UHFFFAOYSA-N dioxosilane;oxomagnesium;hydrate Chemical compound O.[Mg]=O.[Mg]=O.[Mg]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O FPAFDBFIGPHWGO-UHFFFAOYSA-N 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 235000019441 ethanol Nutrition 0.000 description 1
- 229960004756 ethanol Drugs 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000003978 infusion fluid Substances 0.000 description 1
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 description 1
- 229910052622 kaolinite Inorganic materials 0.000 description 1
- 239000011268 mixed slurry Substances 0.000 description 1
- LNOPIUAQISRISI-UHFFFAOYSA-N n'-hydroxy-2-propan-2-ylsulfonylethanimidamide Chemical compound CC(C)S(=O)(=O)CC(N)=NO LNOPIUAQISRISI-UHFFFAOYSA-N 0.000 description 1
- 239000005416 organic matter Substances 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 239000008188 pellet Substances 0.000 description 1
- 229920002451 polyvinyl alcohol Polymers 0.000 description 1
- 235000019422 polyvinyl alcohol Nutrition 0.000 description 1
- 229940068984 polyvinyl alcohol Drugs 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 102000004169 proteins and genes Human genes 0.000 description 1
- 108090000623 proteins and genes Proteins 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 235000020095 red wine Nutrition 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 239000013049 sediment Substances 0.000 description 1
- 230000014639 sexual reproduction Effects 0.000 description 1
- 238000007873 sieving Methods 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 229910000030 sodium bicarbonate Inorganic materials 0.000 description 1
- 235000017557 sodium bicarbonate Nutrition 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 239000010902 straw Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 230000002195 synergetic effect Effects 0.000 description 1
- 239000004408 titanium dioxide Substances 0.000 description 1
- KHPCPRHQVVSZAH-UHFFFAOYSA-N trans-cinnamyl beta-D-glucopyranoside Natural products OC1C(O)C(O)C(CO)OC1OCC=CC1=CC=CC=C1 KHPCPRHQVVSZAH-UHFFFAOYSA-N 0.000 description 1
- 238000009941 weaving Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Classifications
-
- 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
- D21D1/02—Methods of beating; Beaters of the Hollander type
Landscapes
- Paper (AREA)
Abstract
The present invention provides a kind of methods for preparing paper pulp with water lettuce, including first mix water lettuce and boiling water, mashing water are obtained after speed change mashing, then separate mashing water, obtain fibre pulp and roll.In method provided by the present invention, pulping process is boiling water speed regulation mashing, effectively increase the quality and efficiency of mashing, in pulping process, water, slurry separation water circulation use technology are used, do not generate discharge of wastewater, without additional other chemical addition agents, the Environmental security performance of process is improved while reducing cost, full branch water lettuce is used to produce paper support paper pulp by the present invention, it can be relieved or even solve the problems, such as that water lettuce without business outlet, reduces government and skims, fills loss of the water lettuce in terms of manpower, financial resources, environment.
Description
Technical field
The invention belongs to pulp technology for making paper, and in particular to a kind of to prepare the method for paper pulp, the paper pulp of preparation with water lettuce
And application.
Background technique
In the packagings such as agricultural product, industrial goods, pottery, household electrical appliance, cosmetics and diet product are set off, existing packaging
It sets off much still using foamed product, foamed product will cause environmental pollution.And pulp goods be due to that can degrade, it will not
It pollutes the environment, paper pulp is set off with the one-pass molding of paper mould technology is utilized, and is using the technical indicators such as function, appearance
It can match in excellence or beauty and substitute the internal liner packages such as foamed product.
Paper pulp is the raw material for producing various paper products, with paper pulp set off using it is more and more extensive and to environmental protection generate
Positive effect, more and more paper pulp raw materials, which are hewed out, to be come.Water lettuce (also known as Water hyacinth, Eichhornia crassipes, water hyacinth), can both have
Sexual reproduction again can vegetative propagation, the speed of growth even it is fast cross salvaging speed, spread unchecked in rivers and lakes, water lettuce complete stool it is organic at
Point content includes crude fibre 25.46%, thick protein 12.07%, coarse ash 15.53%, and crude fat 1.72% is other
45.22% is nitrogen-free extracts.Since water lettuce content of cellulose is lower than straw and log etc., it is not suitable for producing high-grade paper
Paper pulp raw material, but can be used for producing the Package paper tray paper pulp for needing to be added partially filled agent, using water lettuce complete stool it is organic at
Divide manufacture paper support paper pulp, is to become public hazards as the good outlet of environment protection package product raw material, had both been beneficial to environmental protection, restoring mature econogy
Balance, and advantageously account for water hyacinth and spread unchecked to cause to block the fairway, influence the global harm problem of communications and transportation.
CN106223106B discloses a kind of preparation method of the weaving paper of stable structure, including prepare raw material, feedstock processing,
Magma preparation, mixed slurry preparation and several steps of manufacturing paper with pulp, the invention accelerate size degradation water lettuce and cotton with tree-of-heaven bark infusion liquid
Fiber in line rod increases its short fibre content therewith, reduces mechanical damage, while waxy corn slurries during processing may be used
It to penetrate into fiber holes, is combined with fiber, can effectively improve tenacity of fibre, also utilize carboxyl acrylic resin and other originals
Material synergistic effect, improves the waterproofness of product, and in product preparation process, raw material availability is high for the invention, products obtained therefrom tool
There are higher intensity and toughness, be easy to weave, stable structure, weatherability is strong, is not easy to go mouldy.CN101105017 discloses one kind
The fibrous raw material water hyacinth fibre paste that can be suitably used for the purposes such as papermaking is passed through using Monochoria korsakowii class Series of Water cucurbit fibre object
Paper pulp manufacturing technique process is processed into fiber pulp, and feature is that have water hyacinth fibre, calcium hydroxide, talcum powder, kaolinite in component
Soil, titanium dioxide composition, water hyacinth contain good fiber quality, and finished fiber pulp makes for papermaking and cellulose chemical products raw material
With.CN107326744A discloses a kind of preparation method of tipping paper, which, which cleans fresh Eichhornia crassipes, dries rear and ethyl alcohol
Solution mixes, and after heating water bath, ultrasonic disperse mixes with sodium hydroxide solution after sieving, drying, it is mixed to add sulfuric acid solution
It closing, heating water bath and after sulfamic acid solution is added dropwise, heating water bath stands to obtain mixed liquor, mixed liquor mixed with dehydrated alcohol,
Filtering is stood, is mixed after washing, drying with poly-vinyl alcohol solution and sodium bicarbonate solution, and be centrifugated, collects lower sediment,
It after extrusion forming, is mixed after washing, drying with bamboo fibre slurries, is beaten to obtain modified mixed serum, will finally be modified mixed serum,
Processing, drying, crimped, winding molding are mixed and squeezed with gum rosin, silica again, the tipping paper of invention preparation is adopted
With the Eichhornia crassipes fiber of short texture, escaping gas can be effectively adsorbed, further decreases the organic matter volatilization of tipping paper material
Phenomenon improves the workability energy of material.
To sum up, existing water lettuce papermaking in the related technology, has the following problems: 1, manufacturing process need to add a variety of chemistry
Additive not only increases cost, and there is also potential hazards；2, preparation process step is more, more many and diverse.Therefore, exploitation one is still needed to
The new method for preparing paper pulp using water lettuce of kind.
Summary of the invention
For solve in the prior art, water lettuce prepare paper pulp need to add it is a variety of chemistry addition catalyst and preparation process it is many and diverse
The problem of, an object of the present invention is to provide a kind of method for preparing paper pulp with water lettuce.
The second object of the present invention is to provide the paper pulp of above method preparation.
The third object of the present invention is to provide above-mentioned paper pulp and is preparing the application in paper support.
To achieve the above object, the invention adopts the following technical scheme:
A method of paper pulp is prepared with water lettuce, comprising the following steps:
(1) water lettuce and boiling water are mixed, obtains fibre pulp after speed change mashing；
(2) fibre pulp of separating step (1) obtains crude fibre paper pulp A and mashing water；
(3) crude fibre paper pulp A described in step (2) is rolled to get paper pulp is arrived；
The method further includes, when step (2) it is described mashing water in cellulose mass percentage > 50% when,
Separation mashing water obtains crude fibre slurry B and water, and crude fibre slurry B, which is sent to step (3), to be rolled, and send after water heating to step (1)
It is recycled.
Preferably, the method further includes before step (1), by water lettuce pelletizing.
It is further preferred that volume < 15mm of the pelletizing3。
Preferably, after step (1) water lettuce and boiling water mix, water lettuce is immersed in boiling water, water lettuce and barrel
Volume ratio < 60%.
Preferably, the process of step (1) speed change mashing includes: after being first beaten 2~5min at a slow speed, then middling speed mashing 2
~5min, 3~10min of last high speed mashing.
It is further preferred that it is described at a slow speed, middling speed and high speed be respectively 150rpm, 250rpm and 600rpm.
Preferably, step (3) is described rolls equipment used as two roller rollers.
It is further preferred that the gap between two roller is 0.01mm.
It is further preferred that described roll is completed by two roller rollers, rolling is to eliminate small shot-like particle.
The above method is preparing the application in paper support paper pulp.
The paper pulp rolled is sent to slurry can storage for use, and the paper pulp is with slurry according to the paper support progress for producing different requirements,
Paper reincarnation can be entered to produce, without additional other chemistry addition catalyst in production process.
The above method is preparing the application in paper support paper pulp.
Paper pulp is set off with the one-pass molding of paper mould technology is utilized, and can be equal to using technical indicators such as function, appearances
Beauty and the substitution internal liner packages such as foamed product, can be applied to that egg tray, industrial goods tray, household electrical appliance are set off, pottery serves as a contrast
Support, red wine support, cosmetics are set off to be set off with paper pulp such as medical kind disposable pallets.
During application method provided by the present invention, the skill of a set of commercial procurement water lettuce raw material can be first formulated
Art standard includes the length, width and height size of packing in standard, allows water content and allows the indexs such as sundries amount, floats water after examination
It is spare that lotus is deposited in stock ground.
When mashing, will be cut into granular water lettuce raw material be sent to speed regulation beater in be beaten, methods of beating of the invention has
Following feature:
(1) mashing cutter drive motor uses frequency control motor, using at a slow speed, middling speed, high speed three speed raising beat
The quality and efficiency of slurry；
(2) the Small circular aperture water flowing that diameter is 0.1mm and 0.5mm, barrel are prepared in barrel periphery matched with mashing cutter
The water of periphery follows the programming of mashing, by water automatic heating to 100 DEG C before being beaten after charging；
(3) cutter and barrel are beaten after the height that boiling water submerges has played a programming, automatic rise leaves water surface progress
It extracts crude fibre paper pulp out and fills into water lettuce pellet, enter back into next mashing programming, fill into water lettuce pellet-and drop to boiling water
In-at a slow speed-Medium-High mashing for one programming；
(4) when mashing water is detected cellulose mass percentage > 50%, beating schedule pause, mashing water is pumped to
Water, slurry separator, slurry, which is transported to, to roll, and water sends beater recycling back to, and is automatically replenished and arrives water level line.
In the prior art, when preparing paper support paper pulp using other raw materials, pulp density does not reach requirement after mashing
When concentration, need to be concentrated paper pulp discharge part dilution water, there is Railway Project in the process: 1, the water being discharged can generation environment
The problem of pollution；2, terminate primary mashing, start to need when new beating schedule again by water heat temperature raising, energy consumption is big；3, it arranges
The water removed needs to supplement, and increases water consumption.And in the present invention, barrel is placed in the pre-heated boiling water of beater, and water lettuce is being expected
The concentration of paper pulp needed for can reach production paper support by the way that speed change mashing is disposable in cylinder, no wastewater discharge, the full branch of water lettuce is all
It can use, no waste mine generates.Barrel side wall and bottom are equipped with micropore, these micropores make barrel and the boiling water phase in beater
It is logical, after completing a beating schedule, barrel is risen by automatic hoisting mechanism, after barrel rises, mashing water is arranged from micropore
It flows back in beater, is taken away the crude fibre paper pulp in barrel out by pumping, then barrel is fallen back in beater again, to
Start next beating schedule after charging again in barrel.During this, mashing water remains the state that high temperature even boils,
There is no need to save energy consumption again by water from low-temperature heat, pulping process of the invention does not have discharge of wastewater, in addition, when beating
It when crude fibre concentration in pulp-water reaches requirement, is directly extracted out as paper pulp, overall process does not have any waste and gives up
Water discharge.
Beneficial effects of the present invention
1. compared with prior art, in method provided by the present invention, water, slurry separation water circulation use technology have been used,
Do not generate discharge of wastewater；
2. the present invention, in pulping process, pulping process is boiling water speed regulation mashing, the quality and effect of mashing are effectively increased
Rate；
3. in method provided by the present invention, without additional other chemistry addition catalyst, being mentioned while reducing cost
The Environmental security performance of process is risen；
4. full branch water lettuce is used to produce paper support paper pulp by the present invention, it can be relieved and even solve water lettuce without business outlet
The problem of, it reduces government and skims, fills loss of the water lettuce in terms of manpower, financial resources, environment.
Detailed description of the invention
Fig. 1 is the flow diagram of the method for the present invention.
Specific embodiment
The following is specific embodiments of the present invention, and is described with reference to the drawings and further retouches to technical solution of the present invention work
It states, however, the present invention is not limited to these examples.
Embodiment 1
A method of paper pulp is prepared with water lettuce, comprising the following steps:
(1) water lettuce and boiling water are mixed, water lettuce is immersed in boiling water, volume ratio < 60% of water lettuce and barrel, first
After being beaten 2min at a slow speed, then middling speed is beaten 2min, obtains fibre pulp after last high speed mashing 3min；
(2) fibre pulp of separating step (1) obtains crude fibre paper pulp A and mashing water；
(3) crude fibre paper pulp A described in step (2) is rolled；
When step (2) it is described mashing water in cellulose mass percentage > 50% when, separation mashing water, obtain thick fibre
Dimension slurry B and water, crude fibre slurry B, which is sent to step (3), to be rolled, and is sent after water heating to step (1) and is recycled, at a slow speed, middling speed
It is respectively 150rpm, 250rpm and 600rpm with high speed.It is stand-by to be sent to slurry can storage for the paper pulp rolled.
Embodiment 2
A method of paper pulp is prepared with water lettuce, comprising the following steps:
(1) water lettuce and boiling water are mixed, water lettuce is immersed in boiling water, volume ratio < 60% of water lettuce and barrel, first
After being beaten 5min at a slow speed, then middling speed is beaten 5min, obtains fibre pulp after last high speed mashing 10min；
(2) fibre pulp of separating step (1) obtains crude fibre paper pulp A and mashing water；
(3) crude fibre paper pulp A described in step (2) is rolled；
When step (2) it is described mashing water in cellulose mass percentage > 50% when, separation mashing water, obtain thick fibre
Dimension slurry B and water, crude fibre slurry B, which is sent to step (3), to be rolled, and is sent after water heating to step (1) and is recycled, at a slow speed, middling speed
It is respectively 150rpm, 250rpm and 600rpm with high speed.It is stand-by to be sent to slurry can storage for the paper pulp rolled.
Embodiment 3
A method of paper pulp is prepared with water lettuce, comprising the following steps:
(1) water lettuce and boiling water are mixed, water lettuce is immersed in boiling water, volume ratio < 60% of water lettuce and barrel, first
After being beaten 3min at a slow speed, then middling speed is beaten 3min, obtains fibre pulp after last high speed mashing 5min；
(2) fibre pulp of separating step (1) obtains crude fibre paper pulp A and mashing water；
(3) crude fibre paper pulp A described in step (2) is rolled；
When step (2) it is described mashing water in cellulose mass percentage > 50% when, separation mashing water, obtain thick fibre
Dimension slurry B and water, crude fibre slurry B, which is sent to step (3), to be rolled, and is sent after water heating to step (1) and is recycled, at a slow speed, middling speed
It is respectively 150rpm, 250rpm and 600rpm with high speed.It is stand-by to be sent to slurry can storage for the paper pulp rolled.
Embodiment 4
A method of paper pulp is prepared with water lettuce, comprising the following steps:
(1) by water lettuce pelletizing, volume < 15mm of pelletizing3；
(2) water lettuce and boiling water are mixed, water lettuce is immersed in boiling water, volume ratio < 60% of water lettuce and barrel, first
After being beaten 3min at a slow speed, then middling speed is beaten 3min, obtains fibre pulp after last high speed mashing 5min；
(3) fibre pulp of separating step (2) obtains crude fibre paper pulp A and mashing water；
(4) crude fibre paper pulp A described in step (2) is rolled；
When step (3) it is described mashing water in cellulose mass percentage > 50% when, separation mashing water, obtain thick fibre
Dimension slurry B and water, crude fibre slurry B, which is sent to step (4), to be rolled, and is sent after water heating to step (2) and is recycled.The paper rolled
It is stand-by to be sent to slurry can storage for slurry.
Comparative example 1 (is only beaten at a slow speed)
A method of paper pulp is prepared with water lettuce, comprising the following steps:
(1) water lettuce and boiling water are mixed, water lettuce is immersed in boiling water, volume ratio < 60% of water lettuce and barrel, slowly
Fibre pulp is obtained after speed mashing 15min, beating rate at a slow speed is 150rpm；
(2) fibre pulp of separating step (1) obtains crude fibre paper pulp A and mashing water；
(3) crude fibre paper pulp A described in step (2) is rolled；
When step (2) it is described mashing water in cellulose mass percentage > 50% when, separation mashing water, obtain thick fibre
Dimension slurry B and water, crude fibre slurry B, which is sent to step (3), to be rolled, and is sent after water heating to step (1) and is recycled.The paper rolled
It is stand-by to be sent to slurry can storage for slurry.
Comparative example 2 (only middling speed mashing)
A method of paper pulp is prepared with water lettuce, comprising the following steps:
(1) water lettuce and boiling water being mixed, water lettuce is immersed in boiling water, volume ratio < 60% of water lettuce and barrel, in
Fibre pulp, middling speed 250rpm are obtained after speed mashing 10min；
(2) fibre pulp of separating step (1) obtains crude fibre paper pulp A and mashing water；
(3) crude fibre paper pulp A described in step (2) is rolled；
When step (2) it is described mashing water in cellulose mass percentage > 50% when, separation mashing water, obtain thick fibre
Dimension slurry B and water, crude fibre slurry B, which is sent to step (3), to be rolled, and is sent after water heating to step (1) and is recycled.The paper rolled
It is stand-by to be sent to slurry can storage for slurry.
Comparative example 3 (only high speed is beaten)
A method of paper pulp is prepared with water lettuce, comprising the following steps:
(1) water lettuce and boiling water are mixed, water lettuce is immersed in boiling water, volume ratio < 60% of water lettuce and barrel, high
Fibre pulp is obtained after speed mashing 10min, is at a high speed 600rpm；
(2) fibre pulp of separating step (1) obtains crude fibre paper pulp A and mashing water；
(3) crude fibre paper pulp A described in step (2) is rolled；
When step (2) it is described mashing water in cellulose mass percentage > 50% when, separation mashing water, obtain thick fibre
Dimension slurry B and water, crude fibre slurry B, which is sent to step (3), to be rolled, and is sent after water heating to step (1) and is recycled.The paper rolled
It is stand-by to be sent to slurry can storage for slurry.
Comparative example 4 (is only beaten with high speed at a slow speed)
A method of paper pulp is prepared with water lettuce, comprising the following steps:
(1) water lettuce and boiling water are mixed, water lettuce is immersed in boiling water, volume ratio < 60% of water lettuce and barrel, first
After being beaten 3min at a slow speed, fibre pulp is obtained after last high speed mashing 10min；
(2) fibre pulp of separating step (1) obtains crude fibre paper pulp A and mashing water；
(3) crude fibre paper pulp A described in step (2) is rolled；
When step (2) it is described mashing water in cellulose mass percentage > 50% when, separation mashing water, obtain thick fibre
Slurry B and water are tieed up, crude fibre slurry B, which is sent to step (3), to be rolled, and is sent after water heating to step (1) and is recycled, at a slow speed and at a high speed
Respectively 150rpm and 600rpm.It is stand-by to be sent to slurry can storage for the paper pulp rolled.
Detect example
The pulp production paper support prepared with Examples 1 to 3, the paper support of production and commercially available plain paper support do not have difference, completely
It can satisfy agricultural product (such as egg tray), the requirement that industrial goods, household electrical appliance and cosmetics are set off.
Embodiment 4 increases pelletizing step, and pelletizing step reduces raw material particle size when starting mashing, can shorten subsequent
Beating time.
Comparative example 1~4 without using it is of the invention at a slow speed, the mode of middling speed and higher speed gear mashing, the quality of mashing
It is reduced with efficiency, after being first beaten 2~5min at a slow speed using the present invention, then 2~5min of middling speed mashing, last mashing 3 at a high speed~
The methods of beating of 10min, not only the quality of crude fibre paper pulp is more excellent, and mashing is more efficient, while also can reduce to blade
Abrasion, extends the service life of blade.
Claims (9)
1. a kind of method for preparing paper pulp with water lettuce, which comprises the following steps:
(1) water lettuce and boiling water are mixed, obtains fibre pulp after speed change mashing；
(2) fibre pulp of separating step (1) obtains crude fibre paper pulp A and mashing water；
(3) crude fibre paper pulp A described in step (2) is rolled to get paper pulp is arrived；
The method further includes, when step (2) it is described mashing water in cellulose mass percentage > 50% when, separation
It is beaten water, obtains crude fibre slurry B and water, crude fibre slurry B, which is sent to step (3), to be rolled, and is sent after water heating to step (1) and is recycled
It uses.
2. the method for preparing paper pulp with water lettuce according to claim 1, which is characterized in that the method further includes
Before step (1), by water lettuce pelletizing.
3. the method for preparing paper pulp with water lettuce according to claim 2, which is characterized in that volume < 15mm of the pelletizing3。
4. the method for preparing paper pulp with water lettuce according to claim 1, which is characterized in that step (1) water lettuce and
After boiling water mixing, water lettuce is immersed in boiling water, volume ratio < 60% of water lettuce and barrel.
5. the method for preparing paper pulp with water lettuce according to claim 1, which is characterized in that step (1) the speed change mashing
Process include: that then middling speed is beaten 2~5min, 3~10min of last high speed mashing after being first beaten 2~5min at a slow speed.
6. the method for preparing paper pulp with water lettuce according to claim 5, which is characterized in that it is described at a slow speed, middling speed and high speed
Revolving speed be respectively 150rpm, 250rpm and 600rpm.
7. the method for preparing paper pulp with water lettuce according to claim 1, which is characterized in that rolled described in step (3) used
Equipment be two roller rollers, the gap between two roller is 0.01mm.
8. a kind of paper pulp of method preparation as described in any one of claims 1 to 7.
9. a kind of paper pulp as claimed in claim 8 is preparing the application in paper support.
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