CN114164713B - Preparation method of ecological fish reef made of crop straw raw materials - Google Patents
Preparation method of ecological fish reef made of crop straw raw materials Download PDFInfo
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- CN114164713B CN114164713B CN202111469866.3A CN202111469866A CN114164713B CN 114164713 B CN114164713 B CN 114164713B CN 202111469866 A CN202111469866 A CN 202111469866A CN 114164713 B CN114164713 B CN 114164713B
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- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21J—FIBREBOARD; MANUFACTURE OF ARTICLES FROM CELLULOSIC FIBROUS SUSPENSIONS OR FROM PAPIER-MACHE
- D21J3/00—Manufacture of articles by pressing wet fibre pulp, or papier-mâché, between moulds
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01F—PROCESSING OF HARVESTED PRODUCE; HAY OR STRAW PRESSES; DEVICES FOR STORING AGRICULTURAL OR HORTICULTURAL PRODUCE
- A01F29/00—Cutting apparatus specially adapted for cutting hay, straw or the like
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01K—ANIMAL HUSBANDRY; CARE OF BIRDS, FISHES, INSECTS; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
- A01K61/00—Culture of aquatic animals
- A01K61/70—Artificial fishing banks or reefs
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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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- 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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- 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
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- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21D—TREATMENT OF THE MATERIALS BEFORE PASSING TO THE PAPER-MAKING MACHINE
- D21D1/00—Methods of beating or refining; Beaters of the Hollander type
- D21D1/20—Methods of refining
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- 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
- D21H21/00—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties
- D21H21/06—Paper forming aids
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
- Y02A40/80—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in fisheries management
- Y02A40/81—Aquaculture, e.g. of fish
Abstract
A preparation method of an ecological fish reef made of crop straw raw materials relates to the preparation of the ecological fish reef. The concrete fish reef aims to solve the problem that the lake bottom is influenced by being easily covered by water sludge and continuously thrown in the existing concrete fish reef. The method comprises the following steps: 1. cutting agricultural waste straws into sections, and performing dust removal, winnowing, dipping and dehydration to obtain dehydrated materials; 2. carrying out double-roller milling and high-concentration milling on the dehydrated material to obtain a material A; 3. and mixing the material A, polyamide epichlorohydrin resin and water to obtain fiber slurry, and heating and compacting after molding by using a mold to obtain the ecological fish reef. The ecological fish reef larvae and juveniles prepared by the method have the advantages of good trapping effect, degradability, good aquatic environment restoration effect and realization of clean production in the preparation process. The method can realize regular fixed-point repeated feeding, avoids the problem of fish reef failure caused by sludge coverage, does not cause great change of the bottom appearance of lakes and reservoirs, and is favorable for improving the environment of poor-nutrition sediment in the degradation process and the product. The method is suitable for preparing the ecological fish reef.
Description
Technical Field
The invention relates to preparation of an ecological fish reef.
Background
The artificial fish reef is an artificial structure used for restoring and improving the environment in natural water area environment, and can provide places for fish and other aquatic organisms to breed, grow, make baits and shelter enemies. In the marine environment, people often build artificial fish reefs by using abandoned ships, warships, oil drums, wood, concrete and the like, and in the inland water area environment, the artificial fish reefs are mostly built by adopting concrete. In recent years, most researches have been carried out to prepare artificial fish reef concrete by replacing sand and stone or cement in the concrete with wastes such as sludge, slag, steel slag, coal slag and the like.
However, although wastes such as sludge, slag, steel slag, and coal slag are low in cost, pollutants such as heavy metals in these materials slowly permeate out of water, and cause environmental pollution in water. The artificial fish reef prepared from the common concrete has high manufacturing cost and can consume a large amount of resources such as cement, gravel and the like. Therefore, the artificial fish reef with low development cost and environmental friendliness is a problem which is focused on and urgently needs to be solved in the research field of the artificial fish reef in the inland water area environment.
In inland water bodies, particularly lake water bodies, bottom sludge is seriously deposited, after the concrete artificial fish reef is put into the lake water bodies, the concrete artificial fish reef is easily covered by the sludge, the aims of protecting and proliferating fish and improving the fish harvest yield cannot be fulfilled, and if the concrete artificial fish reef is continuously put into the lake water bodies, the space at the bottom of the lake is occupied, and the bottom of the lake is influenced. At present, an economical and environment-friendly novel artificial fish reef is needed, the function of the existing concrete fish reef can be realized, and the environmental problems of sludge covering and substrate influence can be effectively solved. The biomass material is utilized to manufacture the environment-friendly artificial fish reef which is degradable, low in cost, capable of being thrown for many times and free of pollution, and the artificial fish reef is one of ideas for solving the problems.
Disclosure of Invention
The invention aims to solve the problem that the existing concrete fish reef is easily covered by water sludge and the lake bottom is affected by continuous feeding, and provides a preparation method of the ecological fish reef made of crop straw raw materials.
A preparation method of an ecological fish reef made of crop straw raw materials is realized according to the following steps:
1. cutting agricultural waste straws into sections of 4-5 cm by using a straw cutter, treating the sections by a dust remover and a wind selector in sequence, then putting the sections into a normal-pressure presoaking device, dipping the sections into a KOH solution with the mass fraction of 2-8%, and dehydrating the sections by using a spiral dehydrator after dipping is finished until the water content is less than 50% to obtain dehydrated materials;
2. the dehydrated materials sequentially enter a 1-section double-roll mill, a 2-section double-roll mill and a 3-section double-roll mill, the grinding concentration is 10-30%, the grinding disc gaps are 0.5-1.0 mm, the materials which are milled out from the 3-section double-roll mill are conveyed through a screw conveyor and enter a high-concentration mill, and a material A is obtained;
3. and mixing the material A with polyamide epichlorohydrin resin, adding water, uniformly mixing to obtain fiber slurry, putting the fiber slurry into a slurry suction forming die in a fish reef shape, adsorbing fibers with the thickness of 0.8-1.2 cm on the surface of the die through vacuum suction filtration, removing the die to form a fish reef parison, putting the fish reef parison into a hot pressing forming female die, heating, compacting and drying at 170-185 ℃, taking out the fish parison, cooling at room temperature to obtain the ecological fish reef, and finishing the preparation of the crop straw raw material ecological fish reef.
The ecological fish reef prepared by the invention has the advantages that:
1) Good trapping effect of fish larvae
The prepared ecological fish reef adopts the biomass raw material, and is subjected to chemical modification aiming at reducing the content of extract and high-efficiency fiber grinding and separating, so that the aquatic compatibility of the material is improved, the specific surface area and the hydrophilicity of the material are enlarged, the adhesion to spawning of fish is improved, the nidation rate of the viscous and sinking fish eggs is improved, and the effect of attracting and collecting young fish after the fish eggs are hatched is improved. Compared with the concrete material fish reef with the similar structure, the straw raw material ecological fish reef carp egg attachment amount per mu in the artificial culture environment is improved by 13-19%.
2) Degradable
The raw materials of the ecological fish reef body are crop straws, can be naturally degraded, lays a foundation for regular fixed-point putting under the background that the shape of the lake bed is basically not changed, and avoids the failure problem of the concrete fish reef caused by sludge deposition. Under the condition that straw raw material ecological fish reef lake environment is molded and molded by using polyamide epichlorohydrin resin as a wet strength agent, the wet strength after throwing is 55% of the dry strength of the product; after three months of putting, the wet strength is 43 percent of the dry strength of the product, and the weight loss rate of the product is 13 percent; after one year of release, the wet strength is 26% of the dry strength of the product, the product basically loses the designed shape, and the weight loss rate of the product is 34%.
3) Good aquatic environment repairing effect
The characteristic of high carbohydrate content of the ecological fish reef determines the use process and degradation products of the ecological fish reef, and the ecological fish reef has a certain repairing effect on the poor nutrition bottom sediment of the aquatic ecological environment. Through research and calculation, the total organic carbon content of lake sediment in a throwing area can be improved by 10 percent after the ecological fish reef lake environment with straw raw materials is continuously thrown for three years.
4) The preparation process realizes clean production
For the traditional separation (pulping) of high-lignin fiber of rice straw raw material, if a disc grinder is used as fiber separation equipment to form a traditional pulping process, the pulping waste liquid generally adopts an anaerobic-aerobic-advanced treatment combined biological treatment technology, the discharge concentration of the treated waste water can meet the requirements of discharge standard of water pollutants for pulping and paper making industry (GB 3544-2008), but the treatment cost of each ton of the waste water is at least more than 5.0 RMB; the fiber separation wastewater can be recycled together with the prepared solid waste, and the produced organic compound fertilizer is sold as a commodity, so that the fiber separation of the solid waste and the liquid waste without the prepared material is realized, and the clean production is realized.
The ecological fish reef for the lake and reservoir water body is prepared by selecting crop straws which are large in reserves, low in price and renewable as raw materials, adopting a green fiber separation means and combining a molding forming technology, and has the characteristics of good aquatic environment compatibility, large specific surface area, degradability, capability of keeping high lignin content and low water-soluble substance content of fiber materials and the like.
The raw material of the ecological fish reef is a biological raw material, and after the raw material is subjected to green fiber separation modification, the content of water-soluble substances is greatly reduced, and the ecological fish reef is non-toxic and odorless, so that on one hand, the compatibility of aquatic organisms is improved, on the other hand, the ecological fish reef does not pollute the aquatic environment, and the compatibility of the aquatic environment is comprehensively improved; the crop straw raw material used by the ecological fish reef has good porosity, and the advantage of large porosity of the ecological fish reef is further exerted after green fiber separation and combined molding, recombination and molding, so that the specific surface area of the ecological fish reef is increased, the ecological fish reef is more favorable for attachment and propagation of algae, microorganisms and the like, and the aquatic environment is improved; the degradable ecological fish reef can realize regular fixed-point repeated putting, avoids the problem of fish reef failure caused by sludge coverage, does not cause great change of the bottom appearance of the lake or the reservoir due to repeated putting, and is beneficial to improving the environment of poor nutrition bottom sludge in the degradation process and products, thereby finally achieving the purpose of repairing and improving the aquatic environment for a long time.
The preparation of the solid waste and the liquid waste without material preparation is completed on the premise of ensuring the good fiber bonding strength of the ecological fish reef, so that the clean production is realized; by utilizing the multifunctional characteristic of the double-roller mill, high-concentration waste liquid is extracted while fiber is separated, the waste liquid is recycled, the water consumption for fiber separation is reduced, the total amount of the fiber separation waste liquid is reduced, the concentration of the waste liquid is improved, the waste liquid concentration process is omitted, and conditions are created for resource utilization of the fiber separation waste liquid; by utilizing the multifunctional characteristic of the double-roller mill, the internal multi-section countercurrent washing of pulp is carried out, the fiber separation process is simplified, and the investment of fixed assets is reduced; solid waste generated in the material preparation process of crop straw raw materials is mixed with the waste liquid with high concentration in the fiber separation process for composting treatment, so that the high-efficiency compound fertilizer is produced, and the resource utilization of the solid waste and the liquid waste is realized. By utilizing a double-roll grinding knife-free grinding structure and a dynamic extrusion grinding principle, the grinding separation of the high-lignin-content fibers is realized on the premise of keeping the fiber length to the maximum extent, the fiber separation quality is improved, and the bonding strength of the fibers of the ecological fish reef is ensured.
The method is suitable for preparing the ecological fish reef.
Detailed Description
The first embodiment is as follows: the embodiment provides a preparation method of an ecological fish reef made of crop straw raw materials, which is realized by the following steps:
1. cutting agricultural waste straws into sections of 4-5 cm by using a straw cutter, sequentially treating the sections by using a dust remover and an air separator, then putting the sections into a normal-pressure pre-soaking device, soaking the pre-soaking device into KOH solution with the mass fraction of 2-8%, and dehydrating the pre-soaking device by using a spiral dehydrator until the water content is less than 50% to obtain a dehydrated material;
2. the dehydrated materials sequentially enter a 1-section double-roll mill, a 2-section double-roll mill and a 3-section double-roll mill, the grinding concentration is 10-30%, the grinding disc gaps are 0.5-1.0 mm, the materials which are milled out from the 3-section double-roll mill are conveyed through a screw conveyor and enter a high-concentration mill, and a material A is obtained;
3. and mixing the material A with polyamide epichlorohydrin resin, adding water, uniformly mixing to obtain fiber slurry, putting the fiber slurry into a slurry suction forming die in a fish reef shape, adsorbing fibers with the thickness of 0.8-1.2 cm on the surface of the die through vacuum suction filtration, removing the die to form a fish reef parison, putting the fish reef parison into a hot pressing forming female die, heating, compacting and drying at 170-185 ℃, taking out the fish parison, cooling at room temperature to obtain the ecological fish reef, and finishing the preparation of the crop straw raw material ecological fish reef.
The purpose of the high-concentration grinding in the second step of the embodiment is to separate the straw fiber.
In the second step of the embodiment, the waste liquid squeezed out by the grinding in the 1-stage double-roller mill and the waste materials generated in the operation of the straw cutter, the dust remover and the air separator in the first step enter a solid-liquid mixer for mixed composting treatment, so that the high-efficiency compound fertilizer is produced, and the resource utilization of solid and liquid waste is realized.
In step three of the present embodiment, the polyamide epichlorohydrin resin is used as a wet strength agent.
In the third step of the present embodiment, the slurry suction forming mold in the shape of a fish reef is used as a mold and a filter medium.
The second embodiment is as follows: the difference between the first embodiment and the second embodiment is that in the first step, the roller-type straw cutter or the disk-type straw cutter is adopted as the straw cutter. Other steps and parameters are the same as those in the first embodiment.
The third concrete implementation mode: the present embodiment is different from the first or second embodiment in that, in the first step, the dust remover adopts a roller dust remover, a cylindrical sieve sheet machine or a conical sieve sheet machine. Other steps and parameters are the same as those in the first or second embodiment.
The fourth concrete implementation mode: the present embodiment is different from the first to third embodiments in that the air separator in the first step is a louvered air separator. Other steps and parameters are the same as those in one of the first to third embodiments.
The fifth concrete implementation mode: the difference between the first embodiment and the fourth embodiment is that the dipping temperature in the first step is 80-95 ℃ and the dipping time is 2-15 min. Other steps and parameters are the same as in one of the first to fourth embodiments.
The sixth specific implementation mode: the difference between the embodiment mode and one of the first to fifth embodiment modes is that the refining concentration in the second step is 20 percent, and the grinding disc gap is 0.8mm. Other steps and parameters are the same as those in one of the first to fifth embodiments.
The seventh embodiment: the difference between the embodiment and one of the first to sixth embodiments is that water is added into the 3 rd-stage double-roller mill in the second step, and then the waste liquid squeezed out by the mill is sequentially refluxed into the 2-stage double-roller mill and the 1-stage double-roller mill, so that the waste liquid is recycled. Other steps and parameters are the same as those in one of the first to sixth embodiments.
The specific implementation mode is eight: the difference between this embodiment and the first to seventh embodiments is that, in the second step, high concentration milling: the concentration of the ground pulp is 20-30%, and the gap between the grinding discs is 0.8mm. Other steps and parameters are the same as those in one of the first to seventh embodiments.
The specific implementation method nine: the difference between the present embodiment and one of the first to eighth embodiments is that the mass volume ratio of the material a, the polyamide epichlorohydrin resin and the water in the third step is 100g. Other steps and parameters are the same as those in one to eight of the embodiments.
The detailed implementation mode is ten: the difference between the present embodiment and one of the first to ninth embodiments is that the pressure for heating and compacting in the third step is 0.4 to 0.8MPa, and the time is 30 to 50s. Other steps and parameters are the same as those in one of the first to ninth embodiments.
The beneficial effects of the present invention are demonstrated by the following examples:
example (b):
a preparation method of an ecological fish reef made of crop straw raw materials is realized according to the following steps:
1. cutting agricultural waste straws into sections of 4-5 cm by using a straw cutter, treating the sections by a dust remover and an air separator in sequence, then putting the sections into a normal-pressure presoaking device, soaking the sections into 5% of KOH solution by mass fraction, and dehydrating the sections by using a spiral dehydrator after soaking is finished until the water content is less than 50% to obtain dehydrated materials;
2. the dehydrated material sequentially enters a 1-section double-roll mill, a 2-section double-roll mill and a 3-section double-roll mill, the grinding concentration is 20%, the gap between the grinding discs is 0.8mm, the material which is milled out of the 3-section double-roll mill is conveyed by a screw conveyer and enters a high-concentration mill, and a material A is obtained;
3. and mixing the material A with polyamide epichlorohydrin resin, adding water, uniformly mixing to obtain fiber slurry, putting the fiber slurry into a slurry suction forming die in a fish reef shape, adsorbing fibers with the thickness of 1.0cm on the surface of the die through vacuum suction filtration, removing the die to form a fish reef parison, putting the fish reef parison into a hot-pressing forming female die, heating, compacting and drying at 210 ℃, taking out the fish parison, cooling at room temperature to obtain the ecological fish reef, and finishing the preparation of the crop straw raw material ecological fish reef.
In the first step of this embodiment, the roller-type straw cutter is used as the straw cutter.
In the first step of this embodiment, a roller dust remover is used as the dust remover.
In the first step of this embodiment, the air separator is a louvered air separator.
In the first step of this example, the dipping temperature was 85 ℃ and the dipping time was 10min.
In the second step of this embodiment, water is added to the 3 rd-stage double-roller mill, and then the waste liquid squeezed out by the mill is sequentially returned to the 2-stage double-roller mill and the 1-stage double-roller mill, so that the waste liquid is recycled.
In the second step of this example, high concentration milling: the grinding concentration is 20-30%, and the grinding disc gap is 0.8mm.
In the third step of this example, the mass-to-volume ratio of material a, polyamide epichlorohydrin resin and water is 100g.
In the third step of this embodiment, the pressure of heating and compacting is 0.4-0.8 MPa, and the time is 30-50 s.
In the second step of the embodiment, the waste liquid squeezed out by the grinding in the 1-segment double-roll mill and the waste materials generated in the operation of the straw cutter, the dust remover and the air separator in the first step enter a solid-liquid mixer for mixed composting treatment to produce the high-efficiency compound fertilizer, so that the resource utilization of solid and liquid waste is realized.
The ecological fish reef prepared in the embodiment has the following effects:
1) Good attracting effect of fish larvae
The prepared ecological fish reef adopts the biomass raw material, and is subjected to chemical modification aiming at reducing the content of extract and high-efficiency fiber grinding and separating, so that the aquatic compatibility of the material is improved, the specific surface area and the hydrophilicity of the material are enlarged, the adhesion to spawning of fish is improved, the nidation rate of the viscous and sinking fish eggs is improved, and the effect of attracting and collecting young fish after the fish eggs are hatched is improved. Compared with the concrete material fish reef with a similar structure, the straw raw material ecological fish reef roe adhesion in the artificial culture environment is improved by 19% per mu.
2) Degradable
The raw materials of the ecological fish reef body are crop straws, can be naturally degraded, lays a foundation for regular fixed-point putting under the background that the shape of the lake bed is basically not changed, and avoids the failure problem of the concrete fish reef caused by sludge deposition. Under the condition that straw raw material ecological fish reef lake environment is molded and molded by using polyamide epichlorohydrin resin as a wet strength agent, the wet strength after throwing is 55% of the dry strength of the product; after the product is put for three months, the wet strength is 43 percent of the dry strength of the product, and the weight loss rate of the product is 13 percent; after one year of release, the wet strength is 26% of the dry strength of the product, the product basically loses the designed shape, and the weight loss rate of the product is 34%.
3) Good aquatic environment repairing effect
The characteristic of high carbohydrate content of the ecological fish reef determines the use process and degradation products of the ecological fish reef, and the ecological fish reef has a certain repairing effect on the poor nutrition bottom sediment of the aquatic ecological environment. Through research and calculation, the total organic carbon content of lake sediment in a throwing area can be improved by 10 percent after the ecological fish reef lake environment with straw raw materials is continuously thrown for three years.
4) The preparation process realizes clean production
For the traditional separation (pulping) of high-lignin fiber of rice straw raw material, if a disc grinder is used as fiber separation equipment to form a traditional pulping process, the pulping waste liquid generally adopts an anaerobic-aerobic-advanced treatment combined biological treatment technology, the discharge concentration of the treated waste water can meet the requirements of discharge standard of water pollutants for pulping and paper making industry (GB 3544-2008), but the treatment cost of each ton of the waste water is at least more than 5.0 RMB; the fiber separation wastewater can be recycled together with the solid wastes of the prepared materials, the produced organic compound fertilizer is sold as a commodity, the fiber separation of the solid wastes and the liquid wastes without the prepared materials is realized, and the clean production is realized.
Claims (10)
1. A preparation method of an ecological fish reef made of crop straw raw materials is characterized by comprising the following steps:
1. cutting agricultural waste straws into sections of 4-5 cm by using a straw cutter, treating the sections by a dust remover and a wind selector in sequence, then putting the sections into a normal-pressure presoaking device, dipping the sections into a KOH solution with the mass fraction of 2-8%, and dehydrating the sections by using a spiral dehydrator after dipping is finished until the water content is less than 50% to obtain dehydrated materials;
2. the dehydrated materials sequentially enter a 1-section double-roll mill, a 2-section double-roll mill and a 3-section double-roll mill, the grinding concentration is 10-30%, the grinding disc gaps are 0.5-1.0 mm, the materials which are milled out from the 3-section double-roll mill are conveyed through a screw conveyor and enter a high-concentration mill, and a material A is obtained;
3. mixing the material A with polyamide epichlorohydrin resin, adding water, uniformly mixing to obtain fiber slurry, then putting the fiber slurry into a slurry suction forming die in a fish reef shape, adsorbing fibers with the thickness of 0.8-1.2 cm on the surface of the die through vacuum suction filtration, removing the die to form a fish reef parison, putting the fish reef parison into a hot pressing forming female die, heating, compacting and drying at 170-185 ℃, taking out the fish reef, and cooling at room temperature to obtain an ecological fish reef, thereby completing the preparation of the crop straw raw material ecological fish reef;
wherein the agricultural waste straws in the step one take straws as raw materials.
2. The preparation method of the ecological fish reef made of the crop straw raw material according to claim 1, which is characterized in that: in the step one, the straw cutter adopts a knife roller type straw cutter or a knife disc type straw cutter.
3. The preparation method of the ecological fish reef made of the crop straw raw material according to claim 1, which is characterized in that: in the first step, the dust remover adopts a roller dust remover, a cylindrical sieve sheet machine or a conical sieve sheet machine.
4. The preparation method of the ecological fish reef made of the crop straw raw material according to claim 1, which is characterized in that: in the first step, the winnowing machine is a louvered winnowing machine.
5. The preparation method of the ecological fish reef made of the crop straw raw material according to claim 1, which is characterized in that: in the first step, the dipping temperature is 80-95 ℃, and the dipping time is 2-15 min.
6. The preparation method of the ecological fish reef made of the crop straw raw material according to claim 1, which is characterized in that: in the second step, the grinding concentration is 20 percent, and the grinding disc gap is 0.8mm.
7. The preparation method of the ecological fish reef made of the crop straw raw material according to claim 1, which is characterized in that: and step two, adding water into the 3 rd-segment double-roller mill, and then refluxing the waste liquid squeezed out by the mill into the 2-segment double-roller mill and the 1-segment double-roller mill in sequence to realize the recycling of the waste liquid.
8. The preparation method of the ecological fish reef made of the crop straw raw material according to claim 1, which is characterized in that: high-concentration grinding in the step two: the concentration of the ground pulp is 20-30%, and the gap between the grinding discs is 0.8mm.
9. The preparation method of the ecological fish reef made of the crop straw raw material according to claim 1, which is characterized in that: the mass volume ratio of the material A, the polyamide epichlorohydrin resin and the water in the third step is 100g.
10. The preparation method of the ecological fish reef made of the crop straw as the raw material according to claim 1, wherein the preparation method comprises the following steps: the pressure of heating and compacting in the third step is 0.4-0.8 MPa, and the time is 30-50 s.
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6451722B1 (en) * | 1998-07-28 | 2002-09-17 | Ho Sung Kim | Method for manufacturing artificial reef based on industrial waste |
| CN106702798A (en) * | 2017-03-23 | 2017-05-24 | 东北林业大学 | Method of utilizing waste liquid and waste residue of corn pulping to prepare fertilizer |
| WO2017175935A1 (en) * | 2016-04-05 | 2017-10-12 | 상록엔비텍(주) | Artificial reef fabrication method |
| CN110891746A (en) * | 2017-05-26 | 2020-03-17 | 足迹国际有限责任公司 | Method and apparatus for inline die cutting of vacuum formed molded pulp containers |
| KR20200079972A (en) * | 2018-12-26 | 2020-07-06 | 김진태 | A floating movable eco-friendly artificial reefs |
| CN111519476A (en) * | 2020-05-18 | 2020-08-11 | 杭州西红柿环保科技有限公司 | Full-degradable alcohol-proof paper pulp molded product and preparation method thereof |
| CN113171002A (en) * | 2021-04-26 | 2021-07-27 | 杭州西红柿环保科技有限公司 | Full-degradable paper pulp non-softening cup |
-
2021
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Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6451722B1 (en) * | 1998-07-28 | 2002-09-17 | Ho Sung Kim | Method for manufacturing artificial reef based on industrial waste |
| WO2017175935A1 (en) * | 2016-04-05 | 2017-10-12 | 상록엔비텍(주) | Artificial reef fabrication method |
| CN106702798A (en) * | 2017-03-23 | 2017-05-24 | 东北林业大学 | Method of utilizing waste liquid and waste residue of corn pulping to prepare fertilizer |
| CN110891746A (en) * | 2017-05-26 | 2020-03-17 | 足迹国际有限责任公司 | Method and apparatus for inline die cutting of vacuum formed molded pulp containers |
| KR20200079972A (en) * | 2018-12-26 | 2020-07-06 | 김진태 | A floating movable eco-friendly artificial reefs |
| CN111519476A (en) * | 2020-05-18 | 2020-08-11 | 杭州西红柿环保科技有限公司 | Full-degradable alcohol-proof paper pulp molded product and preparation method thereof |
| CN113171002A (en) * | 2021-04-26 | 2021-07-27 | 杭州西红柿环保科技有限公司 | Full-degradable paper pulp non-softening cup |
Non-Patent Citations (2)
| Title |
|---|
| 不同材料人工鱼礁应用效果评价;张伟等;《安徽农业科学》;20081031(第30期);第13203-13206 * |
| 生态混凝土制作人工鱼礁的研究介绍;刘爱霞;《农技服务》;20161231(第18期);第107-110页 * |
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| CN114164713A (en) | 2022-03-11 |
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