CN106638073B - A kind of husk processing method of efficient and environment-friendly type - Google Patents
A kind of husk processing method of efficient and environment-friendly type Download PDFInfo
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- CN106638073B CN106638073B CN201610984079.5A CN201610984079A CN106638073B CN 106638073 B CN106638073 B CN 106638073B CN 201610984079 A CN201610984079 A CN 201610984079A CN 106638073 B CN106638073 B CN 106638073B
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- 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
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08H—DERIVATIVES OF NATURAL MACROMOLECULAR COMPOUNDS
- C08H8/00—Macromolecular compounds derived from lignocellulosic materials
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- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01C—CHEMICAL OR BIOLOGICAL TREATMENT OF NATURAL FILAMENTARY OR FIBROUS MATERIAL TO OBTAIN FILAMENTS OR FIBRES FOR SPINNING; CARBONISING RAGS TO RECOVER ANIMAL FIBRES
- D01C1/00—Treatment of vegetable material
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- 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
- D21B1/021—Pretreatment of the raw materials by chemical or physical means by chemical means
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- 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
- D21B1/023—Cleaning wood chips or other raw materials
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- Chemical Kinetics & Catalysis (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Wood Science & Technology (AREA)
- General Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Molecular Biology (AREA)
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Abstract
The present invention relates to a kind of husk processing methods of efficient and environment-friendly type, comprising the following steps: softening and detoxification, cleaning, drying and lye infiltration, screening.The present invention impregnates dust and bacteria removing using limewash；And the lye by spraying room temperature toward high temperature husk, it not only can be with micro dissolution pectin and hemicellulose, and husk can slough remaining stain, impurity again under the action of expanding with heat and contract with cold, more importantly husk residual minim alkali metal can be made, its alkalescent is conducive to the bonding of adhesive in rice husk powder process, impurity is further understood finally by vibration screening, strengthens the cleaning of husk again.Present invention process is simple, required device simple and low in cost；Whole process is generated without intractable waste water, environmental friendliness and no harm；Yield is up to 90% or more；The intensity that husk through this process is reprocessed into plant-fiber product has a distinct increment.
Description
Technical field
The husk processing side of the pretreatment of plant fiber of the present invention more particularly to a kind of efficient and environment-friendly type
Method.
Background technique
The husks class such as rice husk, sorghum husk is to represent the natural reproducible energy that plant fiber is a kind of substantial amounts of nature
Source, being efficiently used is the important channel for solving shortage of resources.However the husks such as rice husk, sorghum husk class in growth and was placed
Cheng Zhong has been easy mildew, dust etc. in its surfaces externally and internally and has been enriched with growth, and especially moist hot environment is even more serious, these moulds
Color spot, aflatoxin and other microbial metabolic products, dust and excoemum etc. cause seriously to be restricted when its recycling, drop
The combination and compatibility of low fiber and other substances, and ingredient of husk itself such as lignin, pectin, hemicellulose etc.
Limit the process change of husk fiber.It is shown according to document, is the alkali metal serial solution of representative to plant fibre using sodium hydroxide
The dissolution of the lignin and pectin, hemicellulose of dimension plays the role of more significant.But at the same time, waste water caused by base extraction
In be rich in a large amount of lignin, color is black, and taste is smelly, is the papermaking type waste water for the discoloration for making us what is said or talked about so far, and very intractable
Technical problem.And base extraction is during dedusting cleans, and is also to have to microbial contaminations such as mould and aflatoxins
Biggish restriction effect, it is often more important that, the dissolution of hemicellulose, pectin etc. greatly reduces the yield of husk, according to preceding
The data of phase show that the husk proportion of goods damageds of soda boiling method are up to 40%.
Summary of the invention
The purpose of the present invention is to overcome the above shortcomings and to provide a kind of husk surfaces externally and internally clean out it is thorough, at low cost
Husk processing method that is honest and clean, generating the convenient and fast efficient and environment-friendly type of wastewater treatment.
To achieve the above object, the technical solution of the invention is as follows, a kind of husk processing method of efficient and environment-friendly type, packet
Include following steps；
S1, softening and detoxification: lime, nonionic surfactant and water is added to husk, stirs evenly and is placed on room temperature
1-24 hours, then isolate husk, husk, lime, nonionic surfactant and water weight ratio be 100:0.5-5:
0.001-0.01:50-500；
S2, cleaning: being placed in stirring and washing device, and injected clear water for the husk after softening and detoxification, then be stirred cleaning,
Husk is finally obtained by filtration；
S3, drying and lye infiltration；Husk is placed at 80-120 DEG C and is dried to partial desiccation state, then spray concentration is
The alkali metal soln of 0.5-10% repeats the above steps 2-4 times to wet face state, then husk is placed at 80-120 DEG C and is dried to
It is dry；
S4, screening: husk of the step S3 after dry is placed in vibrating screener, carries out vibration screening.
Further, the partial desiccation state of step S3 refers to that moisture content is 10-80%.
Further, the drying regime of step S3 refers to moisture content lower than 8%.
Further, when step S3 is dried or sprayed alkali metal soln, husk is overturn, guarantees to dry
It is dry or sprinkling uniform.
Further, nonionic surfactant is tween or peregal.Tween is also known as polysorbate, there is foreign odor, warm
And slight bitter.Polysorbate is made by sorb (sugar) alcohol by three-step reaction.Peregal is natural fatty alcohol and ethyleneoxide addition
Object, appearance are milky or ecru ointment shape.
Further, the vibrating screen chip select of step S4 vibrating screener is 20-60 mesh.
By using above-mentioned technical solution, the beneficial effects of the present invention are: the present invention uses limewash to impregnate with dedusting
Degerming；And the lye by spraying room temperature toward high temperature husk, it not only can be with micro dissolution pectin and hemicellulose, and husk is in warm
Remaining stain, impurity can be sloughed under the action of swollen shrinkage again, more importantly husk residual minim alkali metal can be made,
Alkalescent is conducive to the bonding of adhesive in rice husk powder process, further understands impurity finally by vibration screening, again
Strengthen the cleaning of husk.Present invention process is simple, required device simple and low in cost；Whole process is without intractable waste water
It generates, environmental friendliness and no harm；Yield is up to 90% or more；Husk through this process is reprocessed into the strong of plant-fiber product
Degree has a distinct increment.
Specific embodiment
Embodiment 1
1, it the material of following parts by weight is placed in container stirs evenly and be placed on room temperature 24 hours after filtering out rice husk,
100 parts of middle rice husk, 0.5 part of lime, 0.01 part of peregal, 200 parts of water.
2, the rice husk isolated is statically placed in stirring and washing device, and injected clear water, then is stirred cleaning 1 hour, finally
It refilters to obtain rice husk.
3, the rice husk of above-mentioned steps is first placed in drying at 80 DEG C until water content is 10%, then is sprayed to high temperature rice husk at once
0.5% alkali metal soln is spilt until wet face state, constantly repeats above-mentioned drying and sprinkling step 2 time, finally equally at 80 DEG C
Rice husk is dried until its water content is lower than 5%.For the uniformity for guaranteeing drying and sprinkling, this step can it is large-scale, there is overturning
It is carried out with the drying production line of conveying function.
4, dry husk is placed in purpose vibrating screener, carries out vibration screening.
Embodiment 2
1, it the material of following parts by weight is placed in container stirs evenly and be placed on room temperature 1 hour after filtering out sorghum husk,
Wherein 100 parts of sorghum husk, 1 part of lime, 0.001 part of tween, 50 parts of water.
2, the sorghum husk isolated is statically placed in stirring and washing device, and injected clear water, then is stirred cleaning, finally filtered
Obtain rice husk.
3, the sorghum husk of above-mentioned steps is first placed at 120 DEG C drying until water content is 20%, then at once to high temperature height
The alkali metal soln of fine strain of millet shell sprinkling 1% is until wet face state, constantly repeats above-mentioned drying and sprinkling step 3 time, finally equally 20
Sorghum husk is dried at DEG C until its water content is lower than 8%.
4, dry sorghum husk is placed in purpose vibrating screener, carries out vibration screening.
Embodiment 3
1, it the material of following parts by weight is placed in container stirs evenly and be placed on room temperature 12 hours after filtering out rice husk,
100 parts of middle buckwheat shell, 5 parts of lime, 0.03 part of tween, 500 parts of water.
2, the buckwheat shell isolated is statically placed in stirring and washing device, and injected clear water, then is stirred cleaning, finally filtered
Obtain rice husk.
3, the buckwheat shell of above-mentioned steps is first placed at 90 DEG C drying until water content is 16%, then at once to high temperature buckwheat
The alkali metal soln of shell sprinkling 10% is until wet face state, constantly repeats above-mentioned drying and sprinkling step 2 time, finally equally 90
Buckwheat shell is dried at DEG C until its water content is lower than 5%.
4, dry buckwheat shell is placed in purpose vibrating screener, carries out vibration screening.
Embodiment 4
1, it the material of following parts by weight is placed in container stirs evenly and be placed on room temperature 2 hours after filtering out buckwheat shell,
Wherein 100 parts of buckwheat shell, 1 part of lime, 0.001 part of tween, 200 parts of water.
2, the buckwheat shell isolated is statically placed in stirring and washing device, and injected clear water, then is stirred cleaning, finally filtered
Obtain rice husk.
3, the buckwheat shell of above-mentioned steps is first placed at 100 DEG C drying until water content is 18%, then at once to high temperature buckwheat
The alkali metal soln of wheat husk sprinkling 0.5% is until wet face state, constantly repeats above-mentioned drying and sprinkling step 3 time, finally equally exist
Buckwheat shell is dried at 100 DEG C until its water content is lower than 7%.
4, dry buckwheat shell is placed in purpose vibrating screener, carries out vibration screening.
Embodiment 5
1, it the material of following parts by weight is placed in container stirs evenly and be placed on room temperature 10 hours after filtering out rice husk,
100 parts of middle rice husk, 3 parts of lime, 0.08 part of peregal, 300 parts of water.
2, the rice husk isolated is statically placed in stirring and washing device, and injected clear water, then is stirred cleaning, finally filtered
To rice husk.
3, the rice husk of above-mentioned steps is first placed in drying at 95 DEG C until water content is 19%, then is sprayed to high temperature rice husk at once
6% alkali metal soln is spilt until wet face state, constantly repeats above-mentioned drying and sprinkling step 2 time, finally equally dry at 95 DEG C
Dry rice husk is until its water content is lower than 8%.
4, dry husk is placed in purpose vibrating screener, carries out vibration screening.
Embodiment 6
1, it the material of following parts by weight is placed in container stirs evenly and be placed on room temperature 6 hours after filtering out rice husk,
100 parts of middle rice husk, 2 parts of lime, 0.04 part of peregal, 150 parts of water.
2, the rice husk isolated is statically placed in stirring and washing device, and injected clear water, then is stirred cleaning, finally filtered
To rice husk.
3, the rice husk of above-mentioned steps is first placed in drying at 100 DEG C until water content is 16%, then is sprayed to high temperature rice husk at once
0.7% alkali metal soln is spilt until wet face state, constantly repeats above-mentioned drying and sprinkling step 4 time, finally equally at 100 DEG C
Lower drying rice husk is until its water content is lower than 8%.
4, dry husk is placed in purpose vibrating screener, carries out vibration screening.
Above-described, only presently preferred embodiments of the present invention cannot limit the scope of implementation of the present invention, it is all according to
Equivalent change made by scope of the present invention patent and decoration, should still belong in the range of the present invention covers.
Claims (5)
1. a kind of husk processing method of efficient and environment-friendly type, which comprises the following steps:
S1, softening and detoxification: lime, nonionic surfactant and water is added to husk, stirs evenly and is placed on room temperature 1-24
Hour, then isolate husk, husk, lime, nonionic surfactant and water weight ratio be 100:0.5-5:0.001-
0.01:50-500；
S2, cleaning: the husk after softening and detoxification is placed in stirring and washing device, and injected clear water, then is stirred cleaning, finally
Husk is obtained by filtration；
S3, drying and lye infiltration: husk being placed at 80-120 DEG C after being dried to partial desiccation state, then spray concentration is 0.5-
10% alkali metal soln repeats to dry and sprinkling 2-4 times to wet face state, then husk is placed at 80-120 DEG C be dried to it is dry
It is dry；
S4, screening: husk of the step S3 after dry is placed in vibrating screener, carries out vibration screening；
The partial desiccation state of step S3 refers to that moisture content is 10-20%, and the drying regime of step S3 refers to moisture content lower than 8%.
2. the husk processing method of efficient and environment-friendly type according to claim 1, it is characterised in that: alkali metal soln NaOH,
KOH or LiOH.
3. the husk processing method of efficient and environment-friendly type according to claim 1, it is characterised in that: nonionic surfactant is
Tween or peregal.
4. the husk processing method of efficient and environment-friendly type according to claim 1, it is characterised in that: step S3 is dried or sprayed
When spilling alkali metal soln, husk is overturn, guarantee drying or sprayed uniform.
5. the husk processing method of efficient and environment-friendly type according to claim 1, it is characterised in that: step S4 vibrating screener
Vibrating screen chip select is 20-60 mesh.
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| CN102839556A (en) * | 2011-06-23 | 2012-12-26 | 陈培豪 | Method for preprocessing plant cellulose raw material |
| CN105696396A (en) * | 2016-03-24 | 2016-06-22 | 广西壮族自治区中国科学院广西植物研究所 | Method for recovering hemicellulose, lignin and alkaline liquor from hemicellulose extraction liquid by separating flow |
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| CN1054732C (en) * | 1994-07-07 | 2000-07-26 | 石光生 | Method for preparation of aflatoxin radically-removed low sodium salt enriched health-care soya sauce |
| CN104313059A (en) * | 2013-09-30 | 2015-01-28 | 昆山市巴城镇顺拓工程机械配件厂 | Method for producing fuel ethanol by using cereal husk |
| CN103639005B (en) * | 2013-12-27 | 2016-05-25 | 江西天下粮仓粮油实业有限公司 | A kind of special equipment of husk mixture process |
| RU2557227C1 (en) * | 2014-05-23 | 2015-07-20 | Владимир Георгиевич Андреев | Method of processing plant biomass |
| CN105821691B (en) * | 2016-03-29 | 2017-05-31 | 厦门壳氏新材料科技有限公司 | A kind of method for removing rice husk impurity |
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| CN102839556A (en) * | 2011-06-23 | 2012-12-26 | 陈培豪 | Method for preprocessing plant cellulose raw material |
| CN105696396A (en) * | 2016-03-24 | 2016-06-22 | 广西壮族自治区中国科学院广西植物研究所 | Method for recovering hemicellulose, lignin and alkaline liquor from hemicellulose extraction liquid by separating flow |
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Denomination of invention: An efficient and environment-friendly grain husk treatment method Effective date of registration: 20211202 Granted publication date: 20181214 Pledgee: XIAMEN SHENGDA KAIJIA MACHINE CO.,LTD. Pledgor: XIAMEN KESHI NEW MATERIAL TECHNOLOGY CO.,LTD. Registration number: Y2021350000161 |
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