CN106638073A - Efficient and environment-friendly husk processing method - Google Patents
Efficient and environment-friendly husk processing method Download PDFInfo
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- CN106638073A CN106638073A CN201610984079.5A CN201610984079A CN106638073A CN 106638073 A CN106638073 A CN 106638073A CN 201610984079 A CN201610984079 A CN 201610984079A CN 106638073 A CN106638073 A CN 106638073A
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- husk
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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
-
- 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
-
- 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
-
- 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
-
- 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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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Life Sciences & Earth Sciences (AREA)
- Mechanical Engineering (AREA)
- Wood Science & Technology (AREA)
- General Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Materials Engineering (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
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- Molecular Biology (AREA)
- Zoology (AREA)
- Textile Engineering (AREA)
- Processing Of Solid Wastes (AREA)
- Cereal-Derived Products (AREA)
Abstract
The invention relates to an efficient and environment-friendly husk processing method. The method comprises the following steps of softening, detoxification, washing, drying, soaking with alkali liquor and screening. Husk is soaked with limewater for removal of dust and bacteria; the normal-temperature alkali liquor is sprayed to the high-temperature husk so that pectin and hemicellulose can be slightly dissolved, residual dark spots and impurities on the husk can be removed again under the action of heat expansion and cold contraction, and more importantly, trace amounts of alkali metals can remains in the husk, and the alkalescence of the alkali metals is beneficial to bonding of an adhesive in the processing process of husk powder; finally, the impurities are further removed by vibratory screening, and the cleaning of the husk is enhanced again. The process is simple, the required device is simple and the cost is low; no wastewater difficult to process is generated in the whole process, and the whole process is environmentally friendly and harmless; the yield is up to 90% or above; the strength of a plant fiber product made from the husk processed through the method is greatly improved.
Description
Technical field
The pretreatment of string according to the present invention, more particularly to a kind of husk process side of efficient and environment-friendly type
Method.
Background technology
The husk class such as rice husk, sorghum husk is to represent the natural reproducible energy that string is a kind of substantial amounts of nature
Its effectively utilizes is to solve the important channel of shortage of resources by source.But the husk such as rice husk, sorghum husk class is in growth and places
Cheng Zhong, easily has mildew, dust etc. to grow in its surfaces externally and internally enrichment, 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 during its resource, drop
The combination of low fiber and other materials and compatibility, and the composition of husk itself such as lignin, pectin, hemicellulose etc.
Limit the process change of husk fiber.Show according to document, the alkali metal serial solution with NaOH as representative is fine to plant
The lignin and pectin of dimension, the dissolution of hemicellulose play the role of more significant.But at the same time, the waste water produced by base extraction
In be rich in substantial amounts of lignin, color is black, and taste is smelly, is the papermaking type waste water of the discoloration for making us what is said or talked about so far, is also very thorny
Technical barrier.It is also have to microorganism pollutions such as mould and aflatoxins and base extraction is during dedusting removal of impurities
Larger restriction effect, it is often more important that, the dissolution of hemicellulose, pectin etc. greatly reduces the yield of husk, according to front
The data display of phase, the husk proportion of goods damageds of soda boiling method are up to 40%.
The content of the invention
It is an object of the invention to overcome above-mentioned deficiency, there is provided a kind of husk surfaces externally and internally clean out thoroughly, low cost
Husk processing method that is honest and clean, producing wastewater treatment easily efficient and environment-friendly type.
For achieving the above object, technical solution of the invention is that a kind of husk processing method of efficient and environment-friendly type is wrapped
Include following steps；
S1, softening and detoxification：Lime, nonionic surfactant and water are added to husk, normal temperature 1-24 is placed in after stirring
Hour, then husk is isolated, the weight ratio of husk, lime, nonionic surfactant and water is 100：0.5-5：0.001-
0.01：50-500；
S2, cleaning：Stirring and washing device, and injected clear water are placed in the husk after detoxification by softening, then are stirred cleaning, finally
It is filtrated to get husk；
S3, drying and alkali lye infiltration；Dry at husk is placed in into 80-120 DEG C to partial desiccation state, then spray concentration is 0.5-
10% alkali metal soln is to wet face state, repeat the above steps 2-4 time, then dries to drying at husk is placed in into 80-120 DEG C；
S4, screening：The dried husk of step S3 is placed in into vibrating screener, vibration screening is carried out.
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 that moisture content is less than 8%.
Further, when step S3 is dried or sprayed alkali metal soln, husk is overturn, it is ensured that dry
It is dry or sprinkling uniform.
Further, nonionic surfactant is tween or peregal.Tween has foreign odor also known as polysorbate, warm
And slight bitter.Polysorbate is by sorb（Sugar）Alcohol is obtained by three-step reaction.Peregal is natural fatty alcohol and ethyleneoxide addition
Thing, outward appearance is milky or ecru ointment shape.
Further, the vibratory sieve chip select of step S4 vibrating screener is 20-60 mesh.
By using above-mentioned technical scheme, the invention has the beneficial effects as follows：The present invention adopts limewash to soak with dedusting
It is degerming；And by spraying the alkali lye of normal temperature toward high temperature husk, not only can micro dissolution pectin and hemicellulose, and husk is in warm
Remaining stain, impurity can be again sloughed in the presence of swollen shrinkage, what is more important can make husk residual minim alkali metal, its
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, and equipment needed thereby is simple and with low cost；Whole process is without intractable waste water
Produce, environmental friendliness and no harm；Yield is up to more than 90%；The husk of Jing this PROCESS FOR TREATMENT is reprocessed into the strong of plant-fiber product
Degree has a distinct increment.
Specific embodiment
Embodiment 1
1st, the material of following parts by weight is placed in after container stirs and is placed in normal temperature 24 hours after leaching rice husk, its semilate rice
100 parts of shell, 0.5 part of lime, 0.01 part of peregal, 200 parts of water.
2nd, the rice husk isolated is statically placed in into stirring and washing device, and injected clear water, then is stirred cleaning 1 hour, finally
Refilter and obtain rice husk.
3rd, drying at first the rice husk of above-mentioned steps being placed in into 80 DEG C is until water content is 10%, then horse back is to the spray of high temperature rice husk
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
Drying rice husk is until its water content is less than 5%.For ensure drying and spray uniformity, this step can it is large-scale, with upset
Carry out with the drying production line of conveying function.
4th, dry husk is placed in into purpose vibrating screener, carries out vibration screening.
Embodiment 2
1st, the material of following parts by weight is placed in after container stirs and is placed in normal temperature 1 hour after leaching sorghum husk, wherein
100 parts of sorghum husk, 1 part of lime, 0.001 part of tween, 50 parts of water.
2nd, the sorghum husk isolated is statically placed in into stirring and washing device, and injected clear water, then is stirred cleaning, finally filtered
Obtain rice husk.
3rd, drying at first the sorghum husk of above-mentioned steps being placed in into 120 DEG C is until water content is 20%, then horse back is high to high temperature
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 less than 8%.
4th, dry sorghum husk is placed in into purpose vibrating screener, carries out vibration screening.
Embodiment 3
1st, the material of following parts by weight is placed in after container stirs and is placed in normal temperature 12 hours after leaching rice husk, wherein buckwheat
100 parts of wheat husk, 5 parts of lime, 0.03 part of tween, 500 parts of water.
2nd, the buckwheat shell isolated is statically placed in into stirring and washing device, and injected clear water, then is stirred cleaning, finally filtered
Obtain rice husk.
3rd, drying at first the buckwheat shell of above-mentioned steps being placed in into 90 DEG C is until water content is 16%, then horse back is 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 less than 5%.
4th, dry buckwheat shell is placed in into purpose vibrating screener, carries out vibration screening.
Embodiment 4
1st, the material of following parts by weight is placed in after container stirs and is placed in normal temperature 2 hours after leaching buckwheat shell, wherein
100 parts of buckwheat shell, 1 part of lime, 0.001 part of tween, 200 parts of water.
2nd, the buckwheat shell isolated is statically placed in into stirring and washing device, and injected clear water, then is stirred cleaning, finally filtered
Obtain rice husk.
3rd, drying at first the buckwheat shell of above-mentioned steps being placed in into 100 DEG C is until water content is 18%, then horse back is to high temperature buckwheat
The alkali metal soln of wheat husk sprinkling 0.5% constantly repeats above-mentioned drying and sprinkling step 3 time up to wet face state, final equally to exist
Buckwheat shell is dried at 100 DEG C until its water content is less than 7%.
4th, dry buckwheat shell is placed in into purpose vibrating screener, carries out vibration screening.
Embodiment 5
1st, the material of following parts by weight is placed in after container stirs and is placed in normal temperature 10 hours after leaching rice husk, its semilate rice
100 parts of shell, 3 parts of lime, 0.08 part of peregal, 300 parts of water.
2nd, the rice husk isolated is statically placed in into stirring and washing device, and injected clear water, then is stirred cleaning, finally filtered
To rice husk.
3rd, drying at first the rice husk of above-mentioned steps being placed in into 95 DEG C is until water content is 19%, then horse back is to the spray of high temperature rice husk
6% alkali metal soln is spilt until wet face state, constantly repeats above-mentioned drying and sprinkling step 2 time, the final the same baking at 95 DEG C
Dry rice husk is until its water content is less than 8%.
4th, dry husk is placed in into purpose vibrating screener, carries out vibration screening.
Embodiment 6
1st, the material of following parts by weight is placed in after container stirs and is placed in normal temperature 6 hours after leaching rice husk, its semilate rice
100 parts of shell, 2 parts of lime, 0.04 part of peregal, 150 parts of water.
2nd, the rice husk isolated is statically placed in into stirring and washing device, and injected clear water, then is stirred cleaning, finally filtered
To rice husk.
3rd, drying at first the rice husk of above-mentioned steps being placed in into 100 DEG C is until water content is 16%, then horse back is to the spray of high temperature rice husk
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 less than 8%.
4th, dry husk is placed in into purpose vibrating screener, carries out vibration screening.
It is above-described, only presently preferred embodiments of the present invention, it is impossible to limit the scope that the present invention is implemented, it is every according to
Impartial change that scope of the present invention patent is made and decoration, all should still fall within the range of the present invention covers.
Claims (7)
1. the husk processing method of a kind of efficient and environment-friendly type, it is characterised in that comprise the following steps；
S1, softening and detoxification：Lime, nonionic surfactant and water are added to husk, normal temperature 1-24 is placed in after stirring
Hour, then husk is isolated, the weight ratio of husk, lime, nonionic surfactant and water is 100：0.5-5：0.001-
0.01：50-500；
S2, cleaning：Stirring and washing device, and injected clear water are placed in the husk after detoxification by softening, then are stirred cleaning, finally
It is filtrated to get husk；
S3, drying and alkali lye infiltration；Dry at husk is placed in into 80-120 DEG C to partial desiccation state, then spray concentration is 0.5-
10% alkali metal soln is to wet face state, repeat the above steps 2-4 time, then dries to drying at husk is placed in into 80-120 DEG C；
S4, screening：The dried husk of step S3 is placed in into vibrating screener, vibration screening is carried out.
2. the husk processing method of efficient and environment-friendly type according to claim 1, it is characterised in that the partial desiccation state of step S3
Refer to that moisture content is 10-20%.
3. the husk processing method of efficient and environment-friendly type according to claim 1, it is characterised in that the drying regime of step S3 is
Refer to that moisture content is less than 8%.
4. the husk processing method of efficient and environment-friendly type according to claim 1, it is characterised in that alkali metal soln be NaOH,
KOH or LiOH.
5. 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.
6. 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, it is ensured that what is dried or spray is uniform.
7. the husk processing method of efficient and environment-friendly type according to claim 1, it is characterised in that step S4 vibrating screener
Vibratory sieve chip select is 20-60 mesh.
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| CN201610984079.5A CN106638073B (en) | 2016-11-09 | 2016-11-09 | A kind of husk processing method of efficient and environment-friendly type |
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| CN201610984079.5A CN106638073B (en) | 2016-11-09 | 2016-11-09 | A kind of husk processing method of efficient and environment-friendly type |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110882995A (en) * | 2019-10-25 | 2020-03-17 | 湖州练市佳良米业有限公司 | Automatic production process for treating chaff |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110882995A (en) * | 2019-10-25 | 2020-03-17 | 湖州练市佳良米业有限公司 | Automatic production process for treating chaff |
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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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