CN106400561A - Method for preparing paper pulp from waste traditional Chinese medicine dregs - Google Patents
Method for preparing paper pulp from waste traditional Chinese medicine dregs Download PDFInfo
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- CN106400561A CN106400561A CN201610994370.0A CN201610994370A CN106400561A CN 106400561 A CN106400561 A CN 106400561A CN 201610994370 A CN201610994370 A CN 201610994370A CN 106400561 A CN106400561 A CN 106400561A
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- Prior art keywords
- chinese medicine
- mill
- medicine slag
- slurry
- thread rolling
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- 238000000034 method Methods 0.000 title claims abstract description 81
- 239000003814 drug Substances 0.000 title claims abstract description 64
- 229920001131 Pulp (paper) Polymers 0.000 title claims abstract description 10
- 239000002699 waste material Substances 0.000 title abstract description 10
- 238000005096 rolling process Methods 0.000 claims abstract description 33
- 230000029087 digestion Effects 0.000 claims abstract description 21
- 239000002002 slurry Substances 0.000 claims description 70
- 239000002893 slag Substances 0.000 claims description 50
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 21
- KCXVZYZYPLLWCC-UHFFFAOYSA-N EDTA Chemical compound OC(=O)CN(CC(O)=O)CCN(CC(O)=O)CC(O)=O KCXVZYZYPLLWCC-UHFFFAOYSA-N 0.000 claims description 15
- 238000004537 pulping Methods 0.000 claims description 13
- 238000012545 processing Methods 0.000 claims description 10
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 claims description 9
- 239000007787 solid Substances 0.000 claims description 8
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 claims description 7
- MHAJPDPJQMAIIY-UHFFFAOYSA-N hydrogen peroxide Substances OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 claims description 7
- 229960002163 hydrogen peroxide Drugs 0.000 claims description 4
- 238000002360 preparation method Methods 0.000 claims description 4
- 238000004519 manufacturing process Methods 0.000 claims description 2
- 150000003839 salts Chemical class 0.000 claims 1
- RMAQACBXLXPBSY-UHFFFAOYSA-N silicic acid Chemical compound O[Si](O)(O)O RMAQACBXLXPBSY-UHFFFAOYSA-N 0.000 claims 1
- 235000012239 silicon dioxide Nutrition 0.000 claims 1
- 239000000126 substance Substances 0.000 abstract description 8
- 239000000463 material Substances 0.000 abstract description 7
- 239000002351 wastewater Substances 0.000 abstract description 6
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 abstract description 3
- 229920002522 Wood fibre Polymers 0.000 abstract description 3
- 150000001875 compounds Chemical class 0.000 abstract description 3
- 238000010297 mechanical methods and process Methods 0.000 abstract 1
- 229910052717 sulfur Inorganic materials 0.000 abstract 1
- 239000011593 sulfur Substances 0.000 abstract 1
- 239000002025 wood fiber Substances 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 33
- 239000000123 paper Substances 0.000 description 20
- 241000222336 Ganoderma Species 0.000 description 16
- CSNNHWWHGAXBCP-UHFFFAOYSA-L magnesium sulphate Substances [Mg+2].[O-][S+2]([O-])([O-])[O-] CSNNHWWHGAXBCP-UHFFFAOYSA-L 0.000 description 7
- 230000009172 bursting Effects 0.000 description 5
- 230000018044 dehydration Effects 0.000 description 5
- 238000006297 dehydration reaction Methods 0.000 description 5
- 229910052909 inorganic silicate Inorganic materials 0.000 description 5
- 238000005470 impregnation Methods 0.000 description 4
- 229910052943 magnesium sulfate Inorganic materials 0.000 description 4
- 230000035484 reaction time Effects 0.000 description 4
- 230000000052 comparative effect Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000009955 starching Methods 0.000 description 3
- 229920002472 Starch Polymers 0.000 description 2
- 239000005864 Sulphur Substances 0.000 description 2
- 238000007598 dipping method Methods 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 229940079593 drug Drugs 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 238000004134 energy conservation Methods 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000012216 screening Methods 0.000 description 2
- 235000019698 starch Nutrition 0.000 description 2
- 239000008107 starch Substances 0.000 description 2
- 235000006508 Nelumbo nucifera Nutrition 0.000 description 1
- 240000002853 Nelumbo nucifera Species 0.000 description 1
- 235000006510 Nelumbo pentapetala Nutrition 0.000 description 1
- 229910052910 alkali metal silicate Inorganic materials 0.000 description 1
- 229910052784 alkaline earth metal Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 229940126678 chinese medicines Drugs 0.000 description 1
- 230000001149 cognitive effect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 150000004676 glycans Chemical class 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 229920001282 polysaccharide Polymers 0.000 description 1
- 239000005017 polysaccharide Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- CKPKEQOGKBPTSV-UHFFFAOYSA-M sodium;hydrogen peroxide;hydroxide Chemical compound [OH-].[Na+].OO CKPKEQOGKBPTSV-UHFFFAOYSA-M 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
Classifications
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21B—FIBROUS RAW MATERIALS OR THEIR MECHANICAL TREATMENT
- D21B1/00—Fibrous raw materials or their mechanical treatment
- D21B1/04—Fibrous raw materials or their mechanical treatment by dividing raw materials into small particles, e.g. fibres
- D21B1/12—Fibrous raw materials or their mechanical treatment by dividing raw materials into small particles, e.g. fibres by wet methods, by the use of steam
- D21B1/14—Disintegrating in mills
- D21B1/16—Disintegrating in mills in the presence of chemical agents
-
- 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
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H11/00—Pulp or paper, comprising cellulose or lignocellulose fibres of natural origin only
- D21H11/12—Pulp from non-woody plants or crops, e.g. cotton, flax, straw, bagasse
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Wood Science & Technology (AREA)
- Mechanical Engineering (AREA)
- Paper (AREA)
Abstract
The invention provides a method for preparing paper pulp from waste traditional Chinese medicine dregs. The method comprises the steps of S1, conducting thread rolling treatment on the waste traditional Chinese medicine dregs; S2, conducting digestion treatment on the tread rolled waste traditional Chinese medicine dregs; S3, conducting second mill grinding treatment on the waste traditional Chinese medicine dregs after a first mill grinding treatment to obtain the pulp material. Compared with the prior art, according to the properties of the medicine dregs, with a chemical mechanical method, not only the pulp material with high strength is prepared, but also whiteness of the pulp material is raised; with the pulp preparing method, waste water contains no sulfur-containing compound, and pollution load of waste water is reduced; moreover, a more efficient and energy-saving method for preparing paper by large scale utilization of renewable waste resources such as the waste traditional Chinese medicine dregs is provided; large scale reclamation of the waste traditional Chinese medicine dregs achieves utilization of wood fiber resources and the method has good social benefits and economic benefits.
Description
Technical field
The invention belongs to pulping technology for paper-making field, more particularly, to a kind of method using discarded Chinese medicine slag paper-making pulping.
Background technology
In recent years, the development with modern science and technology and people are cognitive to all kinds of Chinese medicines and the attention to life and health,
The production of Chinese medicine, exploitation scale degree improve year by year, and the dregs of a decoction producing therewith also get more and more.Most of Chinese medicine produces and opens
Send out enterprise, in the process of Chinese medicine dreg, because of a variety of causes such as human and material resources, mostly take burning, stacking, landfill etc. simple
Extensive processing mode, the dregs of a decoction are high because of its water content, easily rot, left drug composition etc., and these processing modes are slightly
Improper can bring about great environmental pollution.Therefore, how effectively Chinese medicine slag reasonably to be comprehensively utilized so as to not dirty
Dye environment, can be preferably mankind's service, it has also become numerous scholars fall over each other one of problem of researching and solving again.
Traditional Chinese medicine enterprise when carrying out medicine and producing, because its to the pursuit of target component and existing extraction means, extract effect
The restriction of rate is so that substantial amounts of crude fibre and polysaccharide remain in the dregs of a decoction.Discarded Chinese medicine slag has obtained portion in a lot of fields
Divide application, but because its amount is big, and complicated component, it can be digested and assimilated by current also rare field on a large scale.If can be by this
A little higher Chinese medicine slags of crude fiber content are used for making speciality paper, will significantly improve the utilization rate of the dregs of a decoction.However, general Chinese medicine slag
Sugar amount is high, easily caking, color is deep, is unsuitable for traditional pulping process such as direct defibrination or boiling and carries out slurrying.
Therefore, for the characteristic of this new papermaking material of Chinese medicine slag, a kind of technique side being suitable to the preparation of its paper pulp of exploitation
Method is beneficial to realize the scale application of the dregs of a decoction.
Content of the invention
In view of this, the technical problem to be solved in the present invention is to provide a kind of side using discarded Chinese medicine slag paper-making pulping
Method, the slurry that the method obtains has higher intensity and whiteness.
The invention provides a kind of method using discarded Chinese medicine slag paper-making pulping, including：
S1) discarded Chinese medicine slag is carried out thread rolling process；
S2 the discarded Chinese medicine slag after) processing thread rolling carries out clearing up process；
S3) carry out first paragraph mill process by clearing up the discarded Chinese medicine slag after process；
S4) the discarded Chinese medicine slag after the process of first paragraph mill is carried out second segment mill process, obtain slurry.
Preferably, described step S1) in first discarded Chinese medicine slag is first preheated, then carry out thread rolling process.
Preferably, when described thread rolling is processed, the solid content of discarded Chinese medicine slag is 20～30wt%；The temperature of discarded Chinese medicine slag
For 40 DEG C～60 DEG C.
Preferably, described clearing up processes digestion solution used for NaOH-hydrogenperoxide steam generator；Mistake in described digestion solution
The concentration of hydrogen oxide is 1～4wt%；In described digestion solution, the concentration of NaOH is 1～2wt%.
Preferably, the discarded Chinese medicine slag after described thread rolling is processed is (1～3) with the mass ratio of digestion solution：(9～7).
Preferably, also include EDTA in described digestion solution；The concentration of described EDTA be 1～
2wt%；
Sulfate and silicate is also included in described digestion solution；The concentration of described sulfate is 0.02～0.1wt%；Described
The concentration of silicate is 2～3wt%.
Preferably, the described time clearing up process is 60～90min.
Preferably, during described first paragraph mill is processed, mill spacing is 0.5～0.3mm；Described first paragraph mill process when
Between be 30～60min；
During described second segment mill is processed, mill spacing is 0.3～0.1mm；The time that described second segment mill is processed is 30～
60min.
Preferably, described step S4) also include：
After second segment mill is processed, sieved, collected 50～100 mesh slurries.
Present invention also offers a kind of preparation method of paper, including：
Slurry is mixed with wood pulp and manufactures paper with pulp, obtain paper.
The invention provides a kind of method using discarded Chinese medicine slag paper-making pulping, including：S1) discarded Chinese medicine slag is carried out
Thread rolling is processed；S2 the discarded Chinese medicine slag after) processing thread rolling carries out clearing up process；S3) the discarded Chinese medicine slag after process will be cleared up
Carry out first paragraph mill process；S4) the discarded Chinese medicine slag after the process of first paragraph mill is carried out second segment mill process, starched
Material.Compared with prior art, the present invention, according to the characteristic of the dregs of a decoction, has not only been prepared from chemical mechanical pulping and has had higher-strength
Slurry, also improve the whiteness of slurry；Simultaneously using the compound not containing sulphur in this pulping process waste water, alleviate waste water
Pollutional load；And provide more efficient, energy-conservation for extensive using the renewable waste resource papermaking such as dregs of a decoction discarded object
Method；The extensive resource of dregs of a decoction discarded object achieve wood fibre resource using having good social benefit and warp
Ji benefit.
Specific embodiment
Below in conjunction with the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described,
Obviously, described embodiment is only a part of embodiment of the present invention, rather than whole embodiments.Based in the present invention
Embodiment, the every other embodiment that those of ordinary skill in the art are obtained under the premise of not making creative work, all
Belong to the scope of protection of the invention.
The invention provides a kind of method using discarded Chinese medicine slag paper-making pulping, including：S1) discarded Chinese medicine slag is carried out
Thread rolling is processed；S2 the discarded Chinese medicine slag after) processing thread rolling carries out clearing up process；S3) the discarded Chinese medicine slag after process will be cleared up
Carry out first paragraph mill process；S4) the discarded Chinese medicine slag after the process of first paragraph mill is carried out second segment mill process, starched
Material.
The present invention is not particularly limited to the source of all raw materials.
Wherein, described discarded Chinese medicine slag is discarded Chinese medicine slag well known to those skilled in the art, has no special limit
System, is preferably the glossy ganoderma dregs of a decoction in the present invention.
Preferably first discarded Chinese medicine slag is preheated in the present invention, then carried out thread rolling process；It is useless when described thread rolling is processed
The solid content abandoning Chinese medicine slag is preferably 20～30wt%, more preferably 20～25wt%；Discarded Chinese medicine slag when described thread rolling is processed
Temperature be preferably 40 DEG C～60 DEG C, more preferably 45 DEG C～55 DEG C, further preferably for 50 DEG C；Described thread rolling is processed preferably in thread rolling
Carry out in machine.
Discarded Chinese medicine slag after thread rolling is processed carries out clearing up process；Described clearing up processes digestion solution used for hydroxide
Sodium-hydrogenperoxide steam generator；In described digestion solution, the concentration of hydrogen peroxide is preferably 1～4wt%, more preferably 2～4wt%, then
It is preferably 3～4wt%, most preferably 3wt%；In described digestion solution, the concentration of NaOH is preferably 1～2wt%, more preferably
For 1.5～2wt%, further preferably for 1.5wt%；In the present invention, described digestion solution preferably also includes EDTA (EDTA)；
The concentration of described EDTA is preferably 1～2wt%, more preferably 1.5～2wt%, further preferably for 1.5wt%；Described
Digestion solution preferably also includes sulfate and silicate；Described sulfate is sulfate well known to those skilled in the art, and
No special restriction, is preferably alkali earth metal sulfate, more preferably MgSO in the present invention4；Described silicate is this area skill
Silicate known to art personnel, has no special restriction, is preferably alkali silicate, more preferably in the present invention
Na2SiO4；The concentration of described sulfate is preferably 0.02～0.1wt%, more preferably 0.05～0.1wt%, further preferably for 0.08
～0.1wt%, most preferably 0.1wt%；The concentration of described silicate is preferably 2～3wt%, more preferably 2.5～3wt%,
It is further preferably 3wt%.
According to the present invention, the discarded Chinese medicine slag after described thread rolling is processed carries out clearing up after thread rolling preferably processes by process
Discarded Chinese medicine slag carries out digestion solution dipping；Described thread rolling process after discarded Chinese medicine slag and the mass ratio of digestion solution be preferably (1～
3)：(9～7), the mass concentration in clearing up mixture of the discarded Chinese medicine slag after that is, thread rolling is processed is 10～30wt%；Described clear up
The time processing is preferably 60～90min, more preferably 60～80min, further preferably for 60～70min, most preferably 60min.
Preferably will clear up after the discarded Chinese medicine slag washing after process, carry out first paragraph mill process；Described first paragraph mill
During process, mill spacing is 0.5～0.3mm, more preferably 0.5～0.4mm；The time that described first paragraph mill is processed is preferably 30
～60min, more preferably 30～50min, further preferably for 30～40min, most preferably 30min.First paragraph mill is excellent after processing
From water, slurry is gone out.
Discarded Chinese medicine slag after first paragraph mill is processed carries out second segment mill process；Described second segment mill is processed
When, mill spacing is 0.2～0.1mm, more preferably 0.2mm；The time that described second segment mill is processed is preferably 30～60min,
More preferably 30～50min, further preferably for 30～40min, most preferably 30min.Second segment mill preferably will with water after processing
Slurry is gone out.
According to the present invention, second segment mill is preferably sieved after processing, by the classifying screen of different meshes, collect 50～
100 mesh slurries.
According to the present invention, preferably also include for the slurry obtaining carrying out processed, be more preferably dehydrated with drier
Process；The rotating speed of described processed is preferably 5000～20000r/min, more preferably 5000～15000r/min, further preferably
For 10000r/min；The time of described processed some love 20～60min, more preferably 20～40min within doors, further preferably for
30min.
After processed, preferably also by the equilibrium water conten at low temperature of the slurry after processed；The temperature of described equilibrium water conten
Degree is preferably 2 DEG C～6 DEG C, more preferably 3 DEG C～5 DEG C, further preferably for 4 DEG C；The time of described equilibrium water conten be preferably 10～
30h, more preferably 15～30h, further preferably for 20～30h, most preferably 24h.
After equilibrium water conten, preferably also dried；The temperature of described drying is preferably 100 DEG C～120 DEG C, more preferably
100 DEG C～110 DEG C, further preferably for 105 DEG C；The time of described drying be preferably 2～6h, more preferably 4～5h, further preferably for
4h.
The present invention, according to the characteristic of the dregs of a decoction, has not only prepared the slurry with higher-strength from chemical mechanical pulping, also
Improve the whiteness of slurry；Simultaneously using the compound not containing sulphur in this pulping process waste water, the pollution alleviating waste water is born
Lotus；And provide more efficient, energy-conservation method for extensive using the renewable waste resource papermaking such as dregs of a decoction discarded object；Medicine
The extensive resource of slag discarded object achieve wood fibre resource using having good Social benefit and economic benefit.
Present invention also offers a kind of preparation method of paper, including：Slurry obtained above is mixed with wood pulp and manufactures paper with pulp,
Obtain paper；Described wood pulp is wood pulp well known to those skilled in the art, has no special restriction, is preferably in the present invention
Silver-colored star wood pulp；Described slurry is preferably 1 with the mass ratio of wood pulp：(1～10), more preferably 1：(2～8), further preferably for 1：(4
～6), most preferably 1：4.
In order to further illustrate the present invention, the one kind with reference to embodiments present invention being provided is made using discarded Chinese medicine slag
The method of slurry made of paper is described in detail.
In following examples reagent used be commercially available；Detection method in embodiments of the present invention is as follows：Good starch
Rate is the quality of slurry before the quality/screening the pulp of slurry after screening the pulp；Whiteness：GB/T 22879-2008《Paper and the mensure of cardboard CIE whiteness,
C/2 ° (indoor lighting conditions)》；Tearing strength：GB/T 455-2002《Paper and the mensure of cardboard tearability》；Bursting strength：GB/T
454-2002《The mensure of paper bursting strength》；Tensile strength：GB/T 12914-2008《Paper and the mensure of cardboard tensile strength》.
Embodiment 1
The glossy ganoderma dregs of a decoction that pharmacy corporation is discarded, follow these steps to carry out slurrying：
1.1 keep glossy ganoderma dregs of a decoction solids content to be 20%, and temperature is 50 DEG C, carries out thread rolling process to the gained glossy ganoderma dregs of a decoction.
Starch during 1.2 impregnation process dense for 30wt%, H in digestion solution2O2Consumption 3wt%, EDTA (EDTA) consumption
1.5wt%, MgSO4Consumption 0.1wt%, Na2SiO4Consumption 3wt%, NaOH consumption 1.5wt%, reaction time 60min.
1.3 by the dregs of a decoction of gained in step 1.2, carry out mill process, and adjusting mill spacing is 0.5mm；The mill time is
Slurry, after terminating, is gone out by 30min with water.
1.4 by step 1.3 thick slurry carry out second segment mill process, adjusting mill spacing is 0.2mm；The mill time is
Slurry, after terminating, is gone out by 30min with water.
1.5 by slurry the classifying screen by different meshes, collect 50～100 mesh slurries；
1.6 use drier by gained slurry through row dehydration, rotating speed 10000r/min, time 30min.
Slurry equilibrium water conten, refrigerator temperature are 4 DEG C by 1.7, and the equilibrium water conten time is 24h.
1.8 dry slurry at 105 DEG C, and the time is 4h, measures moisture.
Slurry after equilibrium water conten is starched according to 1 by 1.9 with silver-colored star:4 ratio is joined and is copied, Substance 80g/m2.
Result：After slurrying, the good pulp yield of gained is 48.1%；The whiteness of paper is 27.74ISO, and tearability is 1274mN,
Bursting strength is 99.7Kpa, and tensile strength is 1.75KN/m.
Embodiment 2
The glossy ganoderma dregs of a decoction that discard pharmacy corporation and the thick slurry of embodiment 1 gained, follow these steps to slurrying：
2.1 keep glossy ganoderma dregs of a decoction solids content to be 25%, and temperature is 50 DEG C, carries out thread rolling process to the gained glossy ganoderma dregs of a decoction.
Starching dense during 2.2 impregnation process is 30%, H2O2Consumption 3%, EDTA (EDTA) consumption 1.5%, MgSO4
Consumption 0.1%, Na2SiO4Consumption 3%, NaOH consumption 1.5%, reaction time 60min
The dregs of a decoction of gained in step 2.2 are carried out mill process by 2.3, and adjusting mill spacing is 0.4mm；The mill time is
Slurry, after terminating, is gone out from discharging opening by 30min with water.
2.4 by step 2.3 thick slurry carry out second segment mill process, adjusting mill spacing is 0.2mm, and the time is
Slurry is gone out after terminating by 30min with water.
2.5 by slurry the classifying screen by different meshes, collect 50～100 mesh slurries.
2.6 use drier by gained slurry through row dehydration, rotating speed 10000r/min, time 30min.
Slurry equilibrium water conten, refrigerator temperature are 4 DEG C by 2.7, and the equilibrium water conten time is 24h.
2.8 dry slurry at 105 DEG C, and the time is 4h, measures moisture.
Slurry after equilibrium water conten is starched according to 1 by 2.9 with silver-colored star:4 ratio is joined and is copied, Substance 80g/m2.
Result：After slurrying, good pulp yield is 53.4%；The whiteness of paper is 27.36ISO, and tearability is 1256mN, resistance to broken
Spend for 99.3KPa, tensile strength is 1.73KN/m.
Embodiment 3
The glossy ganoderma dregs of a decoction that discard pharmacy corporation and the thick slurry of embodiment 2 gained, follow these steps to slurrying：
3.1 keep glossy ganoderma dregs of a decoction solids content to be 25%, and temperature is 50 DEG C, carries out thread rolling process to the gained glossy ganoderma dregs of a decoction.
Starching dense during 3.2 impregnation process is 15%, H2O2Consumption 3%, EDTA (EDTA) consumption 1.5%, MgSO4
Consumption 0.1%, Na2SiO4Consumption 3%, NaOH consumption 1.5%, reaction time 60min.
The dregs of a decoction of gained in step 3.2 are carried out mill process by 3.3, and adjusting mill spacing is 0.4mm, and the mill time is
Slurry, after terminating, is gone out from discharging opening by 30min with water.
3.4 by step 3.3 thick slurry carry out second segment mill process, adjusting mill spacing is 0.2mm, and the time is
30min, after terminating, with water by slurry from going out.
3.5 by slurry the classifying screen by different meshes, collect 50～100 mesh slurries.
3.6 use drier by gained slurry through row dehydration, rotating speed 10000r/min, time 30min.
Slurry equilibrium water conten, refrigerator temperature are 4 DEG C by 3.7, and the equilibrium water conten time is 24h.
3.8 dry slurry at 105 DEG C, and the time is 4h, measures moisture.
Slurry after equilibrium water conten is starched according to 1 by 3.9 with silver-colored star:4 ratio is joined and is copied, Substance 80g/m2.
Result：After slurrying, good pulp yield is 65.4%；The whiteness of paper is 28.54ISO, and tearability is 1260mN, resistance to broken
Spend for 97.1KPa, tensile strength is 1.72KN/m.
Embodiment 4
The glossy ganoderma dregs of a decoction that discard pharmacy corporation and the thick slurry of embodiment 3 gained, follow these steps to slurrying：
4.1 keep glossy ganoderma dregs of a decoction solids content to be 25%, and temperature is 50 DEG C, carries out thread rolling process to the gained glossy ganoderma dregs of a decoction.
Starching dense during 4.2 impregnation process is 10%, H2O2Consumption 3%, EDTA (EDTA) consumption 1.5%, MgSO4
Consumption 0.1%, Na2SiO4Consumption 3%, NaOH consumption 1.5%, reaction time 60min.
The dregs of a decoction of gained in step 4.2 are carried out mill process by 4.3, and adjusting mill spacing is 0.5mm, and the mill time is
Slurry, after terminating, is gone out by 30min with water.
4.4 by step 4.3 thick slurry carry out second segment mill process, adjusting mill spacing is 0.2mm, and the time is
Slurry, after terminating, is gone out by 30min with water.
4.5 by slurry the classifying screen by different meshes, collect 50～100 mesh slurries.
4.6 use drier by gained slurry through row dehydration, rotating speed 10000r/min, time 30min.
Slurry equilibrium water conten, refrigerator temperature are 4 DEG C by 4.7, and the equilibrium water conten time is 24h.
4.8 dry slurry at 105 DEG C, and the time is 4h, measures moisture.
Slurry after equilibrium water conten is starched according to 1 by 4.9 with silver-colored star:4 ratio is joined and is copied, Substance 80g/m2.
Result：After slurrying, good pulp yield is 66.3%；The whiteness of paper is 28.86ISO, and tearability is 1230mN, resistance to broken
Spend for 95.1KPa, tensile strength is 1.69KN/m.
Comparative example 1
The glossy ganoderma dregs of a decoction that pharmacy corporation is discarded, follow these steps to carry out slurrying：
1.1 keep glossy ganoderma dregs of a decoction solids content to be 20%, carry out thread rolling process to the gained glossy ganoderma dregs of a decoction.
1.2 by the dregs of a decoction of gained in step 1.1, carry out mill process, and adjusting mill spacing is 0.5mm；The mill time is
Slurry, after terminating, is gone out by 30min with water.
1.3 by step 1.2 thick slurry carry out second segment mill process, adjusting mill spacing is 0.2mm；The mill time is
Slurry, after terminating, is gone out by 30min with water.
1.4 by slurry the classifying screen by different meshes, collect 50～100 mesh slurries；
1.5 use drier by gained slurry through row dehydration, rotating speed 10000r/min, time 30min.
Slurry equilibrium water conten, refrigerator temperature are 4 DEG C by 1.6, and the equilibrium water conten time is 24h.
1.7 dry slurry at 105 DEG C, and the time is 4h, measures moisture.
Slurry after equilibrium water conten is starched according to 1 by 1.8 with silver-colored star:4 ratio is joined and is copied, Substance 80g/m2.
Result：After slurrying, the good pulp yield of gained is 39.1%；The whiteness of paper is 24.13ISO, and tearability is 1005mN,
Bursting strength is 90.5Kpa, and tensile strength is 1.23KN/m.
Only thread rolling-defibrination process are carried out to the dregs of a decoction in a comparative example, and thread rolling has been carried out at normal temperatures, is unfavorable for
Dregs of a decoction sub-wire swollen；And the present invention is during thread rolling, the temperature of the dregs of a decoction of raising, and to the dregs of a decoction after thread rolling
Learn dipping, so that yield, the whiteness of dregs of a decoction paper and physical property that the dregs of a decoction are starched all is improved.
Slurry after the equilibrium water conten that embodiment 1～embodiment 4 obtains is starched according to 1 with silver-colored star:4 ratio is joined and is copied gained paper
The performance opened is detected, obtains the results are shown in Table 1.
Table 1 different schemes gained dregs of a decoction paper performance testing result contrasts
| Whiteness (ISO) | Tearability mN | Bursting strength KPa | Tensile strength KN/m | |
| Embodiment 1 | 27.74 | 1274 | 99.7 | 1.75 |
| Embodiment 2 | 27.36 | 1256 | 99.3 | 1.73 |
| Embodiment 3 | 28.54 | 1260 | 97.1 | 1.72 |
| Embodiment 4 | 28.86 | 1230 | 95.1 | 1.69 |
| Comparative example 1 | 24.13 | 1005 | 90.5 | 1.23 |
Claims (10)
1. a kind of method using discarded Chinese medicine slag paper-making pulping is it is characterised in that include：
S1) discarded Chinese medicine slag is carried out thread rolling process；
S2 the discarded Chinese medicine slag after) processing thread rolling carries out clearing up process；
S3) carry out first paragraph mill process by clearing up the discarded Chinese medicine slag after process；
S4) the discarded Chinese medicine slag after the process of first paragraph mill is carried out second segment mill process, obtain slurry.
2. method according to claim 1 is it is characterised in that described step S1) in first discarded Chinese medicine slag is first carried out pre-
Heat, then carry out thread rolling process.
3. method according to claim 2 is it is characterised in that the solid content discarding Chinese medicine slag when described thread rolling is processed is 20
～30wt%；The temperature of discarded Chinese medicine slag is 40 DEG C～60 DEG C.
4. method according to claim 1 it is characterised in that described clear up process digestion solution used be NaOH-
Hydrogenperoxide steam generator；In described digestion solution, the concentration of hydrogen peroxide is 1～4wt%；The concentration of NaOH in described digestion solution
For 1～2wt%.
5. method according to claim 4 it is characterised in that described thread rolling process after discarded Chinese medicine slag and digestion solution
Mass ratio is (1～3)：(9～7).
6. method according to claim 4 is it is characterised in that also include EDTA in described digestion solution；Described
The concentration of EDTA is 1～2wt%；
Sulfate and silicate is also included in described digestion solution；The concentration of described sulfate is 0.02～0.1wt%；Described silicic acid
The concentration of salt is 2～3wt%.
7. method according to claim 1 is it is characterised in that the described time clearing up process is 60～90min.
8. method according to claim 1 it is characterised in that described first paragraph mill process in mill spacing be 0.5～
0.3mm；The time that described first paragraph mill is processed is 30～60min；
During described second segment mill is processed, mill spacing is 0.3～0.1mm；The time that described second segment mill is processed is 30～
60min.
9. method according to claim 1 is it is characterised in that described step S4) also include：
After second segment mill is processed, sieved, collected 50～100 mesh slurries.
10. a kind of preparation method of paper, its feature exists, including：
Claim 1～9 any one is obtained slurry mix with wood pulp manufacturing paper with pulp, obtain paper.
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| CN109331756A (en) * | 2018-10-31 | 2019-02-15 | 江南大学 | A kind of pretreatment unit and technique of paper products filler |
| CN110080026A (en) * | 2019-04-22 | 2019-08-02 | 华南理工大学 | A kind of bio-mechanical pulping process, biological mechanical pulp and application based on waste bacterium rod |
| CN111545553A (en) * | 2020-05-18 | 2020-08-18 | 长沙季丰科技有限公司 | Environment-friendly treatment method and recycling method of traditional Chinese medicine residues |
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