CN107475781B - Efficient environment-friendly straw cotton making method and cotton making method - Google Patents
Efficient environment-friendly straw cotton making method and cotton making method Download PDFInfo
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- CN107475781B CN107475781B CN201710769462.3A CN201710769462A CN107475781B CN 107475781 B CN107475781 B CN 107475781B CN 201710769462 A CN201710769462 A CN 201710769462A CN 107475781 B CN107475781 B CN 107475781B
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- 239000010902 straw Substances 0.000 title claims abstract description 66
- 238000000034 method Methods 0.000 title claims abstract description 46
- 229920000742 Cotton Polymers 0.000 title abstract description 31
- 239000002699 waste material Substances 0.000 claims abstract description 35
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 32
- 238000004061 bleaching Methods 0.000 claims abstract description 20
- 238000004519 manufacturing process Methods 0.000 claims abstract description 18
- 239000002912 waste gas Substances 0.000 claims abstract description 17
- 239000002351 wastewater Substances 0.000 claims abstract description 15
- 238000005406 washing Methods 0.000 claims abstract description 13
- 238000012216 screening Methods 0.000 claims abstract description 8
- 239000002994 raw material Substances 0.000 claims abstract description 6
- 230000003203 everyday effect Effects 0.000 claims abstract description 4
- 238000004898 kneading Methods 0.000 claims abstract description 4
- 239000000843 powder Substances 0.000 claims abstract description 4
- 238000003860 storage Methods 0.000 claims abstract description 4
- 239000003513 alkali Substances 0.000 claims description 26
- 238000003756 stirring Methods 0.000 claims description 20
- 239000000835 fiber Substances 0.000 claims description 16
- 238000005096 rolling process Methods 0.000 claims description 16
- ZKQDCIXGCQPQNV-UHFFFAOYSA-N Calcium hypochlorite Chemical compound [Ca+2].Cl[O-].Cl[O-] ZKQDCIXGCQPQNV-UHFFFAOYSA-N 0.000 claims description 15
- 239000007844 bleaching agent Substances 0.000 claims description 15
- 244000025254 Cannabis sativa Species 0.000 claims description 9
- 239000013589 supplement Substances 0.000 claims description 7
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims description 6
- 238000010438 heat treatment Methods 0.000 claims description 6
- 239000002893 slag Substances 0.000 claims description 6
- 238000009833 condensation Methods 0.000 claims description 5
- 230000005494 condensation Effects 0.000 claims description 5
- 230000003113 alkalizing effect Effects 0.000 claims description 3
- 239000007864 aqueous solution Substances 0.000 claims description 3
- 238000004140 cleaning Methods 0.000 claims description 3
- 238000001035 drying Methods 0.000 claims description 3
- 238000005485 electric heating Methods 0.000 claims description 3
- 229920005610 lignin Polymers 0.000 claims description 3
- 239000007788 liquid Substances 0.000 claims description 3
- 238000004064 recycling Methods 0.000 claims description 3
- 230000000630 rising effect Effects 0.000 claims description 3
- 238000004062 sedimentation Methods 0.000 claims description 3
- HRZFUMHJMZEROT-UHFFFAOYSA-L sodium disulfite Chemical compound [Na+].[Na+].[O-]S(=O)S([O-])(=O)=O HRZFUMHJMZEROT-UHFFFAOYSA-L 0.000 claims description 3
- 229940001584 sodium metabisulfite Drugs 0.000 claims description 3
- 235000010262 sodium metabisulphite Nutrition 0.000 claims description 3
- AKHNMLFCWUSKQB-UHFFFAOYSA-L sodium thiosulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=S AKHNMLFCWUSKQB-UHFFFAOYSA-L 0.000 claims description 3
- 235000019345 sodium thiosulphate Nutrition 0.000 claims description 3
- 239000000243 solution Substances 0.000 claims description 3
- 238000007599 discharging Methods 0.000 claims 2
- 230000001376 precipitating effect Effects 0.000 claims 1
- 238000003825 pressing Methods 0.000 claims 1
- 238000003912 environmental pollution Methods 0.000 abstract description 2
- 239000000575 pesticide Substances 0.000 abstract description 2
- 238000009264 composting Methods 0.000 abstract 1
- 241000209094 Oryza Species 0.000 description 4
- 235000007164 Oryza sativa Nutrition 0.000 description 4
- 230000008901 benefit Effects 0.000 description 4
- 235000009566 rice Nutrition 0.000 description 4
- 239000000047 product Substances 0.000 description 3
- 230000002378 acidificating effect Effects 0.000 description 2
- 239000006227 byproduct Substances 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 235000013339 cereals Nutrition 0.000 description 1
- 238000010924 continuous production Methods 0.000 description 1
- 239000003337 fertilizer Substances 0.000 description 1
- 230000020477 pH reduction Effects 0.000 description 1
Classifications
-
- 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
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01B—MECHANICAL TREATMENT OF NATURAL FIBROUS OR FILAMENTARY MATERIAL TO OBTAIN FIBRES OF FILAMENTS, e.g. FOR SPINNING
- D01B1/00—Mechanical separation of fibres from plant material, e.g. seeds, leaves, stalks
- D01B1/10—Separating vegetable fibres from stalks or leaves
- D01B1/14—Breaking or scutching, e.g. of flax; Decorticating
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01B—MECHANICAL TREATMENT OF NATURAL FIBROUS OR FILAMENTARY MATERIAL TO OBTAIN FIBRES OF FILAMENTS, e.g. FOR SPINNING
- D01B1/00—Mechanical separation of fibres from plant material, e.g. seeds, leaves, stalks
- D01B1/10—Separating vegetable fibres from stalks or leaves
- D01B1/14—Breaking or scutching, e.g. of flax; Decorticating
- D01B1/30—Details of machines
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06L—DRY-CLEANING, WASHING OR BLEACHING FIBRES, FILAMENTS, THREADS, YARNS, FABRICS, FEATHERS OR MADE-UP FIBROUS GOODS; BLEACHING LEATHER OR FURS
- D06L4/00—Bleaching fibres, filaments, threads, yarns, fabrics, feathers or made-up fibrous goods; Bleaching leather or furs
- D06L4/10—Bleaching fibres, filaments, threads, yarns, fabrics, feathers or made-up fibrous goods; Bleaching leather or furs using agents which develop oxygen
- D06L4/12—Bleaching fibres, filaments, threads, yarns, fabrics, feathers or made-up fibrous goods; Bleaching leather or furs using agents which develop oxygen combined with specific additives
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06L—DRY-CLEANING, WASHING OR BLEACHING FIBRES, FILAMENTS, THREADS, YARNS, FABRICS, FEATHERS OR MADE-UP FIBROUS GOODS; BLEACHING LEATHER OR FURS
- D06L4/00—Bleaching fibres, filaments, threads, yarns, fabrics, feathers or made-up fibrous goods; Bleaching leather or furs
- D06L4/10—Bleaching fibres, filaments, threads, yarns, fabrics, feathers or made-up fibrous goods; Bleaching leather or furs using agents which develop oxygen
- D06L4/13—Bleaching fibres, filaments, threads, yarns, fabrics, feathers or made-up fibrous goods; Bleaching leather or furs using agents which develop oxygen using inorganic agents
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06L—DRY-CLEANING, WASHING OR BLEACHING FIBRES, FILAMENTS, THREADS, YARNS, FABRICS, FEATHERS OR MADE-UP FIBROUS GOODS; BLEACHING LEATHER OR FURS
- D06L4/00—Bleaching fibres, filaments, threads, yarns, fabrics, feathers or made-up fibrous goods; Bleaching leather or furs
- D06L4/20—Bleaching fibres, filaments, threads, yarns, fabrics, feathers or made-up fibrous goods; Bleaching leather or furs using agents which contain halogen
- D06L4/21—Bleaching fibres, filaments, threads, yarns, fabrics, feathers or made-up fibrous goods; Bleaching leather or furs using agents which contain halogen combined with specific additives
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06L—DRY-CLEANING, WASHING OR BLEACHING FIBRES, FILAMENTS, THREADS, YARNS, FABRICS, FEATHERS OR MADE-UP FIBROUS GOODS; BLEACHING LEATHER OR FURS
- D06L4/00—Bleaching fibres, filaments, threads, yarns, fabrics, feathers or made-up fibrous goods; Bleaching leather or furs
- D06L4/20—Bleaching fibres, filaments, threads, yarns, fabrics, feathers or made-up fibrous goods; Bleaching leather or furs using agents which contain halogen
- D06L4/22—Bleaching fibres, filaments, threads, yarns, fabrics, feathers or made-up fibrous goods; Bleaching leather or furs using agents which contain halogen using inorganic agents
- D06L4/23—Bleaching fibres, filaments, threads, yarns, fabrics, feathers or made-up fibrous goods; Bleaching leather or furs using agents which contain halogen using inorganic agents using hypohalogenites
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06L—DRY-CLEANING, WASHING OR BLEACHING FIBRES, FILAMENTS, THREADS, YARNS, FABRICS, FEATHERS OR MADE-UP FIBROUS GOODS; BLEACHING LEATHER OR FURS
- D06L4/00—Bleaching fibres, filaments, threads, yarns, fabrics, feathers or made-up fibrous goods; Bleaching leather or furs
- D06L4/70—Multi-step processes
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- Inorganic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Chemical & Material Sciences (AREA)
- Molecular Biology (AREA)
- Wood Science & Technology (AREA)
- Zoology (AREA)
- Health & Medical Sciences (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
An efficient environment-friendly straw cotton making method and a cotton making method. Cotton is the largest economic crop in agricultural products in China, the planting of the cotton occupies a large area of cultivated land, pesticides and manpower, and the traditional straw cotton-making method often has the appearance of waste water, waste gas and waste residues, which causes environmental pollution. An efficient environment-friendly straw cotton making method comprises the following steps: (1) kneading and softening the straws: collecting the broken straw scraps accumulated every day, screening the broken straw scraps by an automatic screening machine, conveying the straw scraps with the thickness of more than 50mm to a first alkalization pool by a conveyor belt to be used as a production raw material, and using the produced broken powder for composting; (2) alkalization: (3) washing with water: (4) acidifying: (5) bleaching: (6) baking: (7) checking the weight and putting in storage. The invention is applied to a method for preparing cotton by straws.
Description
Technical Field
The invention relates to a method for finely utilizing a byproduct of harvested crops, namely straw stalks, and provides efficient and environment-friendly straw cotton making and a cotton making method.
Background
China is a big agricultural country, wherein the planting area of rice reaches more than 6 hundred million mu, and a large amount of byproducts, namely straw stalks, are produced every year. Because the prior processing of agricultural products is not focused enough and corresponding processing equipment is lacked, a large amount of rice straws are wasted, even a large part of rice straws are burnt in a rice field, so that resources are wasted and the atmosphere is polluted. The cotton has wide application, is also used as an important industrial raw material in large quantity except for cotton clothing, needs a large quantity of cotton, and therefore becomes the largest economic crop in agricultural products in China, the planting of the cotton occupies large-area cultivated land, pesticides and manpower, and the traditional straw cotton-making method often has the appearance of waste water, waste gas and waste residues, thereby causing environmental pollution.
Disclosure of Invention
The invention aims to provide efficient and environment-friendly straw cotton making and a cotton making method.
The above purpose is realized by the following technical scheme:
an efficient environment-friendly straw cotton making method comprises the following steps: (1) kneading and softening the straws: breaking and crushing the straws by a special automatic breaking machine;
and (3) debris treatment: collecting the broken straw scraps accumulated every day, screening the broken straw scraps by an automatic screening machine, conveying the straw scraps with the size of more than 50mm to a first alkalization pool by a conveyor belt to be used as a production raw material, and using the produced broken powder for retting fertilizer;
(2) alkalization:
the method is carried out in two sections; firstly, after the kneaded straw is conveyed to a primary alkali pool, when the temperature of the primary alkali pool reaches 40-60 ℃ and the pH value is above 10, alkalifying for thirty minutes by stirring an alkali solution in the primary alkali pool by an arc stirring wheel, and after the alkalifying is finished, starting a rolling filter conveyor to convey the straw to a second alkalifying pool; secondly, raising the temperature of the alkali liquor with the pH value of l3 in the second alkalization pool to 80-120 ℃, and alkalizing for twenty minutes under the stirring of a roller;
(3) washing with water:
conveying the softened and flat straw by a roll filtration conveyor, removing more than ninety percent of lignin, stirring and washing soft straw fibers containing hemilignin for twenty minutes by using clean water, injecting the clean water while washing, and conveying alkali-containing water back to the first alkali pool and the second alkali pool for repeated use;
(4) acidifying: rolling and inputting the washed grass fibers into a hydrochloric acid aqueous solution with the pH value of 1 in a water pool, rolling and stirring for twenty minutes, and inputting the grass fibers into the next pool;
(5) bleaching:
firstly, bleaching: adding bleaching powder into a pool, wherein the adding amount of the bleaching powder is thirteen thousandth of the water amount in the pool, then adding sodium metabisulfite accounting for six to eight percent of the total amount of the bleaching powder, carrying out stirring bleaching, and inputting the primarily bleached grass fibers into a second bleaching pool while rolling;
bleaching: adding bleaching powder equivalent to clear water in a pool to 2-4% of the pool water, then adding sodium thiosulfate equivalent to 1-3% of the bleaching powder, finally adding the bleached and dried white fiber, repeatedly stirring for twenty-six minutes, removing water by rolling, and inputting into the next procedure;
(6) baking: an electric heating or air heating dryer is adopted, and the air heating dryer works for thirty to forty minutes to be dried and then is taken out;
(7) checking the weight and putting in storage.
The high-efficiency environment-friendly straw cotton-making and cotton-making method is characterized in that steam generated in the alkalization process passes through an alkalization pool, an automatic hot steam condensation device is arranged on the alkalization pool, rising hot steam is condensed and flows back to the alkalization pool for continuous use, generated waste residues pass through a waste residue siphon inlet arranged below the alkalization pool, each batch of alkalized straw is siphoned once according to an electric button, the waste residues are sucked into a large sedimentation pool, are dug out after a certain time and are input into a wall body plate workshop by a conveying belt for making house decorative plates, no waste water is generated in the process, and water needs to be supplemented periodically.
The efficient environment-friendly straw cotton production method and the cotton production method have the advantages that when the amount of waste water generated in the washing process is a little large, the waste water is sucked into the two alkalization pools to be used as alkalization supplement liquid, the discharged waste residues are siphoned periodically and discharged into the waste residue second pool to be precipitated and reused, and no waste steam is generated in the washing process.
The efficient environment-friendly straw cotton making method comprises the following steps: the waste gas is acidic, the condensation equipment is arranged on the alkalization tank and is condensed for recycling, and the generated small amount of waste residue is recycled by siphoning into a special residue settling tank.
The high-efficiency environment-friendly straw cotton production method comprises the steps that when waste gas generated in the bleaching process is in weak alkalinity, special collecting equipment is arranged on the straw cotton production method, the waste gas is collected and condensed, then the waste gas is fed into a first alkalization tank for supplement and reuse, and the generated scrap slag is fed into a slag settling tank outside a workshop after being siphoned from the lower part and then is recycled.
The high-efficiency environment-friendly straw cotton making and the cotton making method have the advantages that waste gas generated in the drying process is collected and condensed and then is pumped into the cleaning pool for reuse, and no waste water or waste residue is generated in the process.
The invention has the following beneficial effects:
1. the invention can put an end to burning, protect the environment, change waste into valuables, increase the income of planting field economy, reduce cotton planting, enlarge the planting area of grain crops, and improve the original semi-mechanized semi-manual backward production process with three wastes (waste gas, waste water and waste residue) generation into a full-intelligent three-waste-free flow production line. The most obvious characteristic of the improved method for preparing cotton by using straws is that three wastes are eliminated while production is carried out, namely, the three wastes are converted into the wastes for reuse while continuous production is carried out, thereby fundamentally eliminating the three wastes and changing the wastes into the wastes for reuse, saving investment and simultaneously realizing green production. And the zero emission of the whole production process is really realized.
2. The invention has the advantages of high yield, high benefit, good product quality, white color, less manpower, high safety, saving various production raw materials and reducing part of cost.
Detailed Description
The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are described herein for the purpose of illustration and explanation and not limitation.
Example 1:
an efficient environment-friendly straw cotton making method comprises the following steps:
(1) kneading and softening the straws: breaking and crushing the straws by a special automatic breaking machine;
the method comprises the following steps of (1) debris treatment, namely collecting broken straw scraps accumulated every day, screening the broken straw scraps through an automatic screening machine, conveying the straw scraps with the thickness of more than 50mm to a first alkalization pool through a conveyor belt to serve as a production raw material, and using produced broken powder for retting;
(2) alkalization:
the method is carried out in two sections; firstly, after the kneaded straw is conveyed to a primary alkali pool, when the temperature of the primary alkali pool reaches 40-60 ℃ and the pH value is above 10, alkalifying for thirty minutes by stirring an alkali solution in the primary alkali pool by an arc stirring wheel, and after the alkalifying is finished, starting a rolling filter conveyor to convey the straw to a second alkalifying pool; secondly, raising the temperature of the alkali liquor with the pH value of l3 in the second alkalization pool to 80-120 ℃, and alkalizing for twenty minutes under the stirring of a roller;
(3) washing with water:
conveying the softened and flat straw by a roll filtration conveyor, removing more than ninety percent of lignin, stirring and washing soft straw fibers containing hemilignin for twenty minutes by using clean water, injecting the clean water while washing, and conveying alkali-containing water back to the first alkali pool and the second alkali pool for repeated use;
(4) acidifying: rolling and inputting the washed grass fibers into a hydrochloric acid aqueous solution with the pH value of 1 in a water pool, rolling and stirring for twenty minutes, and inputting the grass fibers into the next pool;
(5) bleaching:
firstly, bleaching: adding bleaching powder into clear water, wherein the adding amount of the bleaching powder is thirteen thousandth of the water amount in the water pool, then adding sodium metabisulfite accounting for six to eight percent of the total amount of the bleaching powder, carrying out stirring bleaching, and inputting the primarily bleached grass fibers into a second bleaching pool while rolling;
bleaching: adding bleaching powder equivalent to clear water in a pool to 2-4% of the pool water, then adding sodium thiosulfate equivalent to 1-3% of the bleaching powder, finally adding the bleached and dried white fiber, repeatedly stirring for twenty-six minutes, removing water by rolling, and inputting into the next procedure;
(6) baking: an electric heating or air heating dryer is adopted, and the air heating dryer works for thirty to forty minutes to be dried and then is taken out;
(7) checking the weight and putting in storage.
Example 2:
according to the embodiment 1, the high-efficiency environment-friendly straw cotton-making and cotton-making method is characterized in that steam generated in the alkalization process passes through an alkalization pool, an automatic hot steam condensation device is arranged, rising hot steam is condensed and flows back to the pool for continuous use, generated waste residues pass through a waste residue siphon suction port arranged below the pool, each batch of alkalized straw is siphoned once according to an electric button, the waste residues are sucked into a large sedimentation tank, the straw is dug out after a certain time, a conveying belt is used for conveying the straw into a wall body plate workshop for manufacturing house decorative plates, no waste water is generated in the process, and water needs to be supplemented periodically.
Example 3:
according to the efficient and environment-friendly straw cotton manufacturing and cotton manufacturing method of the embodiment 1 or 2, when the amount of waste water generated in the washing process is a little large, the waste water is sucked into two alkalization pools to be used as alkalization supplement liquid, the discharged waste residues are siphoned periodically and discharged into a waste residue second pool to be precipitated and reused, and no waste gas is generated in the washing process.
Example 4:
according to the efficient environment-friendly straw cotton-making method and the cotton-making method of the embodiment 1, 2 or 3, the method comprises the following steps: wherein in the acidification process: the waste gas is acidic, the condensation equipment is arranged on the alkalization tank and is condensed for recycling, and the generated small amount of waste residue is recycled by siphoning into a special residue settling tank.
Example 5:
according to the high-efficiency environment-friendly straw cotton-making and cotton-making method of the embodiment 1, 2, 3 or 4, when waste gas generated in the bleaching process is alkalescent, special collecting equipment is arranged on the straw cotton-making and cotton-making method, the waste gas is collected and condensed, then the waste gas is pumped into a first alkalization tank for supplement and reuse, and generated chip slag is pumped into a slag settling tank outside a workshop after siphon arrangement and is reused.
Example 6:
according to the efficient and environment-friendly straw cotton-making and cotton-making method of the embodiment 1, 2, 3, 4 or 5, waste gas generated in the drying process is collected and condensed and then is sent into a cleaning pool for reuse, and no waste water or waste residue is generated in the process.
Claims (1)
1. A high-efficiency environment-friendly straw cotton-making method comprises the following steps: the method is characterized in that:
(1) kneading and softening the straws: breaking and crushing the straws by a special automatic breaking machine;
and (3) debris treatment: collecting the broken straw scraps accumulated every day, screening the broken straw scraps by an automatic screening machine, conveying the straw scraps with the thickness of more than 50mm to a primary alkali pool through a conveyor belt to serve as production raw materials, and using the produced broken powder for retting;
(2) alkalization:
the method is carried out in two sections; firstly, after the kneaded straw is conveyed to a primary alkali pool, when the temperature of the primary alkali pool reaches 40-60 ℃ and the pH value is above 10, alkalifying for thirty minutes by stirring an alkali solution in the primary alkali pool by an arc stirring wheel, and after the alkalifying is finished, starting a rolling filter conveyor to convey the straw to a second alkalifying pool; secondly, raising the temperature of the alkali liquor with the pH value of l3 in the second alkalization pool to 80-120 ℃, and alkalizing for twenty minutes under the stirring of a roller;
(3) washing with water:
the soft and flat straw fiber which is conveyed by the rolling filter conveyor and is removed with more than ninety percent of lignin is stirred and washed by clean water for twenty minutes, clean water is injected while the straw fiber is washed, and alkali-containing water is conveyed back to the primary alkali pool and the secondary alkali pool for repeated use;
(4) acidifying: rolling and inputting the washed grass fibers into a hydrochloric acid aqueous solution with the pH value of 1 in a water pool, rolling and stirring for twenty minutes, and inputting the grass fibers into the next pool;
(5) bleaching:
firstly, bleaching: adding bleaching powder into a pool, wherein the adding amount of the bleaching powder is thirteen thousandth of the water amount in the pool, then adding sodium metabisulfite accounting for six to eight percent of the total amount of the bleaching powder, carrying out stirring bleaching, and inputting the primarily bleached grass fibers into a second bleaching pool while rolling;
bleaching: adding bleaching powder to 2-4% of the pool water, then adding sodium thiosulfate which is 1-3% of the bleaching powder, finally adding the white fiber which is bleached and rolled to be dry, repeatedly stirring for twenty-six minutes, rolling to remove water, and inputting into the next procedure;
(6) baking: an electric heating or air heating dryer is adopted, and the air heating dryer works for thirty to forty minutes to be dried and then is taken out;
(7) checking the weight and putting in storage;
wherein steam generated in the alkalization process passes through an alkalization pool and is provided with automatic hot steam condensation equipment, rising hot steam is condensed and flows back to the pool for continuous use, generated waste residues pass through a waste residue siphon inlet arranged below the pool, straws are siphoned once by pressing a button every time when alkalization is carried out on a batch of straws, the waste residues are sucked into a large sedimentation pool, are dug out after a certain time, are input into a wall plate workshop by a conveying belt and are used for manufacturing house decorative plates, no waste water is generated, and regular water supplement is needed;
when the amount of waste water generated in the washing process is a little large, sucking the waste water into two alkalization pools as alkalization supplement liquid, discharging waste residues, siphoning the discharged waste residues periodically, discharging the waste residues into a waste residue second pool, precipitating and recycling, and generating no waste steam;
when waste gas generated in the bleaching process is alkalescent, special collecting equipment is arranged on the bleaching machine, the waste gas is condensed while being collected and then is pumped into a primary alkali tank for supplement and reuse, and the generated scrap slag is pumped into a slag settling tank outside a workshop after being siphoned from below and is reused;
wherein, the waste gas generated in the drying process is collected and condensed and then is pumped into a cleaning pool for reuse, and no waste water or waste residue is generated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201710769462.3A CN107475781B (en) | 2017-08-31 | 2017-08-31 | Efficient environment-friendly straw cotton making method and cotton making method |
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| CN201710769462.3A CN107475781B (en) | 2017-08-31 | 2017-08-31 | Efficient environment-friendly straw cotton making method and cotton making method |
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| CN107475781B true CN107475781B (en) | 2020-08-04 |
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| CN1152038A (en) * | 1995-12-10 | 1997-06-18 | 鞠馥阳 | Method of making plant fibre |
| CN102086532A (en) * | 2010-12-20 | 2011-06-08 | 胡肇眉 | Method for manufacturing cotton from straws |
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