CN101806008B - Pulping process for obtaining non-fibrous matters in dry mode without generating water - Google Patents
Pulping process for obtaining non-fibrous matters in dry mode without generating water Download PDFInfo
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- CN101806008B CN101806008B CN2010101505344A CN201010150534A CN101806008B CN 101806008 B CN101806008 B CN 101806008B CN 2010101505344 A CN2010101505344 A CN 2010101505344A CN 201010150534 A CN201010150534 A CN 201010150534A CN 101806008 B CN101806008 B CN 101806008B
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Abstract
The invention discloses a pulping process for obtaining non-fibrous matters in a dry mode without generating water. The pulping process is characterized by mainly comprising the following steps of: (1) cutting off raw materials for pulping and slightly dedusting; (2) disintegrating by adopting a method of pulverizing, grinding, rubbing or extruding; (3) screening to obtain non-fibrous matters; (4) bleaching; and (5) obtaining finished pulp. The invention completely belongs to pulping processes without any pollution. The invention has the great advantages that 40 percent of gramineous plant non-fibrous matters obtained in a dry mode are the best farming feeds, and a large quantity of grains can be saved; the yield of white pulp is 55 percent, the pulp does not need to be washed, and the pulping process generates no water; the whiteness of the pulp is high, the strength of paper is good, and yellowing can be avoided; and the pulping cost, the equipment investment and various consumptions are low, and the process is simple.
Description
(1) technical field
The present invention relates to a kind of pulping process, particularly a kind of obtaining non-fibrous matters in dry mode reaches the pulping process that does not produce water.
(2) background technology
China has become world papermaking big country, and the paper amount belongs to first, but paper fibre is in short supply, more than 50% be to lean on external waste paper and the wood pulp of import, 40% lean on domestic waste paper, produce paper, the papermaking profits tax is extremely low, is less than 10% profits tax.The papermaking price is high, let alone large quantities of paper outlet.The papermaking enterprise that has is purchaseed overseas equipment and technology in bulk, and they make great efforts to produce the more than ten years, and basic also unclear external equipment of all profits and technological money are the foreigners and they support, are not again our common people, and also pollute our home.
Paper industry itself is exactly the industry that the degree of association is very strong, and we will revitalize papermaking enterprise, must thoroughly solve the pollution of non-wood pulp slurrying, lets papermaking enterprise come the service for compatriots, comes our common people of affluence.
Obtaining non-fibrous matters in dry mode reaches the pulping process that does not produce water, in long-term like this environment, produces.
(3) summary of the invention
The present invention is in order to remedy the deficiency of prior art, a kind of obtaining non-fibrous matters in dry mode is provided and do not produced the pulping process of water, be a kind of energy-conservation, cost is low, have no pollutions, also can produce the pulping process of breeding feed.
The present invention realizes through following technical scheme:
A kind of obtaining non-fibrous matters in dry mode reaches the pulping process that does not produce water, it is characterized in that: mainly be made up of following steps:
1.. pulping raw material is cut off slight dedusting;
2.. size degradation: adopt the method for pulverizing, consult, grind or pushing;
3.. screening: get non-fibrous material;
4.. bleaching;
5.. the finished product slurry.
Obtaining non-fibrous matters in dry mode of the present invention and do not produce the pulping process of water, the said step pulping raw material in 1. is meant grass class, broad-leaved class or conifer; Cutting off slight dedusting, is exactly to cut off the slight dedusting in back to pulping raw material, does not allow pulping raw material that any loss is arranged.The size degradation of said step in 2. smashed the pulping raw material after the dedusting exactly with equipment.The screening of said step in 3. is to select non-fibrous material with 60-80 purpose mesh screen.
The bleaching of said step in 4. comprises the steps: that a adds alkali, spiral spice, heating; B. add hydrogen peroxide; C. bleaching action.Add alkali among the said step a, be meant adding NaOH; The spiral spice is meant to add NaOH and water, in spiral, mixes the fibre bundle raw material thoroughly; Heating is in helix tube, to add the small amount of steam heating; Add hydrogen peroxide among the said step b, be meant the fibre bundle raw material after the heating is added hydrogen peroxide, carry out high dense mill defibrination again, or defibrination not, directly the fibre bundle raw material is bleached; Bleaching action among the said step c is meant that the fine fibre raw material behind the high dense mill mill dissolves in the device or floats the reaction of carrying out in the tower 60-90 minute, temperature 90-95 ℃ in bleaching.The weight ratio of the NaOH among the said step a is the fibre bundle raw material: water: NaOH=100: (200-300): (1-8); Be heated to 80 ℃ to the fibre bundle raw material, the reaction time is 1-5 minute, just falls into high dense mill feeding screw.Hydrogen peroxide among the said step b is in the dense mill feeding screw of height, to add, and weight ratio is: the fibre bundle raw material: hydrogen peroxide=100: (1-13).
Obtaining non-fibrous matters in dry mode of the present invention and do not produce the pulping process of water, said step are 2., the pulverizing in 3. is to pulverize for 1-3 time, and screening also be to screen for 1-3 time, and screening net is 60 orders-80 orders.Till becoming fibre bundle to pulping raw material.The finished product slurry of said step in 5. is the high whiteness paper pulp after the bleaching, just can sell or papermaking.
The present invention researches and develops according to the characteristic of grass class and structure.Non-fibrous material is more, and it is the natural enemy of slurrying, also is the root of polluting.Take out non-fibrous material, slurrying has just naturally been oversimplified.
Non-fibrous material itself is exactly a kind of flour, in crushing process.It is easy to broken, break away from cellulose, and cellulose is very difficult broken.In screening process, cellulose is gone up all basically and is remained.
For stalk, in pulverizing, just can do the non-fibrous material of taking-up 40%, and 60% be fibre bundle.40% the non-fibrous material that takes out, thin just as fine flour is a kind of optimum feed of breed, do not add any batching, also can sell for 600 yuan one ton.
Cellulose is nonnutritive, goes back indigestibility, and the material of nutritious value is all in non-fibrous material.So just can turn waste into wealth, for aquaculture is saved a large amount of grain.These non-fibrous materials also have very big value in industry.
In pulping process, fiber is prone to bleaching, and white pulp yield is more than 55%.Paper pulp also need not wash, and it is fine to produce the back strength of paper, brightness reversion not, and cost is very low.
Sheerly a kind of pulping process that has no pollution of the present invention.Biggest advantage of the present invention is: the dried grass class non-fibrous material 40% of getting is a kind of breeding feed of the best, and can saves a large amount of grain; White pulp yield 55%, paper pulp need not wash, and pulping process does not produce a water again; Pulp brightness is high, the intensity of paper is good, brightness reversion not; The slurrying cost is low, equipment investment is low, various consumption is low, technology is simple.
(4) specific embodiment
Embodiment 1: the slurrying step of making raw material with wheat straw is following:
1. it is long to be cut into the 2-3 centimetre to wheat straw, and slight dedusting purifies wheat straw, lets wheat straw have no loss as far as possible, lets the breeding feed of producing not have dust.
2. break into Powderedly with pulverizer or the disintegrating apparatus wheat straw after dedusting, carry out the choosing of 60 order mesh screens.Pulverize, screening 1-3 time is for well, with regard to ability output softness and smooth fibre bundle.
3. purify good fibre bundle; Get into storage bin, have metering screw to deliver to the spice spiral to the fibre bundle raw material, at this moment add alkali, Jia Shui, reacting by heating 1-3 minute; Add hydrogen peroxide again; Carry out high dense mill defibrination, let fibre bundle become fine fibre, percentage by weight is: fibre bundle raw material: water: alkali: hydrogen peroxide=100: (200-300): (1-8): (1-13).
4. the fine fibre behind the mill heat 90-95 ℃, and reaction is 60-90 minute in floating tower, starch in vain, whiteness reaches more than 80%.
5. paper pulp need not wash, and adds acid and transfers PH, after screening, can produce paper.
Embodiment 2: the slurrying step of making raw material with cotton stalk is following:
1. cutting off cotton stalk or smash slight dedusting, mainly is to be to purify feed.
2. break into Powderedly with pulverizer or the disintegrating apparatus cotton stalk after dedusting, carry out the choosing of 60 order mesh screens.Pulverize, screen 1-3 time for well, just can produce the fibre bundle of soft smooth.
3. purify good fibre bundle, get into storage bin, have metering screw to deliver to the spice spiral to fibre bundle, at this moment add alkali, Jia Shui, heating, reacted 4 minutes, add hydrogen peroxide again and carry out high dense mill defibrination.Percentage by weight is: fibre bundle raw material: water: alkali: hydrogen peroxide=100: (200-300): (1-7): (1-12).
4. the fine fibre behind the mill heat 90-95 ℃, and reaction is 60-90 minute in floating tower, starch in vain, whiteness reaches more than 90%.
5. paper pulp need not wash, and adds acid and transfers PH, can produce paper after the choosing of wearable pulp screen.Cotton stalk pulp is best paper pulp, and can produce various cultural papers.
Embodiment 3: the slurrying step of making raw material with poplar is following:
1. the poplar sheet must be done.
2. pulverize three screenings for three times.
3. the good fibre bundle of screening gets into storage bin, has metering screw to send into the spice spiral.Add alkali, add water, heated 5 minutes, add hydrogen peroxide again and carry out high dense mill defibrination, percentage by weight is: fibre bundle raw material: water: alkali: hydrogen peroxide=100: (200-300): (1-7) :) (1-7);
4. the good fine fibre of mill heat 90-95 ℃, is floating the tower internal reaction 90-120 minute, starch in vain, whiteness is up to more than 85%.
5. paper pulp need not wash, and adds acid and transfers PH, can produce paper through defibrination, screening.
One ton of over dry is starched in vain, produces 150 kilograms of wood powders.
Claims (7)
1. an obtaining non-fibrous matters in dry mode reaches the pulping process that does not produce water, it is characterized in that: mainly be made up of following steps:
1.. pulping raw material is cut off slight dedusting;
2.. size degradation: adopt the method for pulverizing, consult, grind or pushing;
3.. screening: get non-fibrous material;
4.. bleaching;
5.. the finished product slurry;
The size degradation of said step in 2. smashed the pulping raw material after the dedusting exactly with equipment;
The screening of said step in 3. is to select non-fibrous material with 60-80 purpose mesh screen;
The bleaching of said step in 4. comprises the steps: that a adds alkali, spiral spice, heating; B. add hydrogen peroxide; C. bleaching action;
Add alkali among the said step a, be meant adding NaOH; The spiral spice is meant to add NaOH and water, in spiral, mixes the fibre bundle raw material thoroughly; Heating is in helix tube, to add the small amount of steam heating; Add hydrogen peroxide among the said step b, be meant the fibre bundle raw material after the heating is added hydrogen peroxide, carry out high dense mill defibrination again, or defibrination not, directly the fibre bundle raw material is bleached; Bleaching action among the said step c is meant that the fine fibre raw material behind the high dense mill mill carries out 60-90 minute reaction, temperature 90-95 ℃ in the molten device of bleaching.
2. according to the said obtaining non-fibrous matters in dry mode of claim 1 and do not produce the pulping process of water, it is characterized in that: the pulping raw material of said step in 1. is meant grass class, broad-leaved class or conifer; Cutting off slight dedusting, is exactly to cut off the slight dedusting in back to pulping raw material, does not allow pulping raw material that any loss is arranged.
3. according to the said obtaining non-fibrous matters in dry mode of claim 1 and do not produce the pulping process of water, it is characterized in that: the finished product slurry of said step in 5. is the high whiteness paper pulp after the bleaching, is used for selling or papermaking.
4. reach the pulping process that does not produce water according to the said obtaining non-fibrous matters in dry mode of claim 1; It is characterized in that: said step 2., the pulverizing in 3. is to pulverize for 1-3 time; Screening also be to screen for 1-3 time, and screening net is 60 orders-80 orders, become fibre bundle to pulping raw material till.
5. reach the pulping process that does not produce water according to the said obtaining non-fibrous matters in dry mode of claim 1, it is characterized in that: the weight ratio of the NaOH among the said step a is the fibre bundle raw material: water: NaOH=100: (200-300): (1-8); Be heated to 80 ℃ to the fibre bundle raw material, the reaction time is 1-5 minute, just falls into high dense mill feeding screw.
6. reach the pulping process that does not produce water according to the said obtaining non-fibrous matters in dry mode of claim 1, it is characterized in that: the hydrogen peroxide among the said step b is in the dense mill feeding screw of height, to add, and weight ratio is: the fibre bundle raw material: hydrogen peroxide=100: (1-13).
7. reach the pulping process that does not produce water according to the said obtaining non-fibrous matters in dry mode of claim 1, it is characterized in that: the bleaching among the said step c is dissolved device for floating tower.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101505344A CN101806008B (en) | 2010-04-20 | 2010-04-20 | Pulping process for obtaining non-fibrous matters in dry mode without generating water |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101505344A CN101806008B (en) | 2010-04-20 | 2010-04-20 | Pulping process for obtaining non-fibrous matters in dry mode without generating water |
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| CN101806008A CN101806008A (en) | 2010-08-18 |
| CN101806008B true CN101806008B (en) | 2012-07-04 |
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| CN2010101505344A Expired - Fee Related CN101806008B (en) | 2010-04-20 | 2010-04-20 | Pulping process for obtaining non-fibrous matters in dry mode without generating water |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104343031A (en) * | 2013-08-10 | 2015-02-11 | 南通盛海植物纤维有限公司 | Bleaching-free non-pollution biological waste water recycling process |
| CN106758456A (en) * | 2017-01-23 | 2017-05-31 | 刘长如 | Sodium metasilicate low-temp reaction pulping process |
| CN110396843A (en) * | 2019-07-15 | 2019-11-01 | 苏州绿驰机械设备有限公司 | A kind of separating plant non-fibrous material and fibrous matter technique |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1298984A (en) * | 1999-12-07 | 2001-06-13 | 范维金 | Grass pulp without pollution and method for reclaiming its by-product |
| CN101200862A (en) * | 2007-05-30 | 2008-06-18 | 山东华林环保科技有限公司 | Clean pulping process |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1298984A (en) * | 1999-12-07 | 2001-06-13 | 范维金 | Grass pulp without pollution and method for reclaiming its by-product |
| CN101200862A (en) * | 2007-05-30 | 2008-06-18 | 山东华林环保科技有限公司 | Clean pulping process |
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Effective date of registration: 20160524 Address after: City of Victoria 100027 Beijing Chaoyang District City South Xiaohongmen Township chengshousi Road No. 308 outside the city four storey Commercial Building No. 1098 Patentee after: Long (Beijing) Paper Technology Co.,Ltd. Address before: Li wa Cun, Chengguan town in Shandong province Heze city Chengwu County 274200 Patentee before: Liu Changru |
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Application publication date: 20100818 Assignee: Henan Changru Ecological Technology Co.,Ltd. Assignor: Long (Beijing) Paper Technology Co.,Ltd. Contract record no.: X2020980000166 Denomination of invention: Pulping process for obtaining non-fibrous matters in dry mode without generating water Granted publication date: 20120704 License type: Exclusive License Record date: 20200119 |
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