174 results about "Snail shell" patented technology

The invention relates to a construction method of an ecological revetment formed by splicing and fixing ecological prefabricated bricks on a protection slope. The construction method comprises the following steps of: (1) mixing cinder, cement, yellow sand and crushed wheatstraw in a valume ratio of 0.4 to 0.1 to 0.3 to 0.2 and then stirring into ecological concrete; (2) making ecological prefabricated bricks with the ecological concrete and arranging trough holes on the prefabricated brick surfaces; (3) laying snail shells with the cut-through tails at one side of the prefabricated bricks before the concrete is dried to form the outer surface of the embankment, wherein the through holes formed on the embankment blocks are not blocked by snail shells; (4) fully drying, filling the through holes and the hollow cavities of the surface snail shells with silt containing herbaceous plant seeds and drying the silt to form the ecological prefabricated bricks; and (5) splicing and fixing a plurality of prefabricated bricks on the protection slope to form the ecological embankment. The invention is suitable for building ecological embankments for rivers and lakes reservoirs and can be also used for paving ecological walls and ecological roads.

The invention belongs to the technical field of fertilizers, and particularly relates to an organic fertilizer and a preparation method thereof. The organic fertilizer is composed of the following components in parts by mass: 40-80 parts of silkworm litter, 50-100 parts of wet pond silt, 5-15 parts of snail shell, 10-20 parts of straw, 15-25 parts of animal manure, 5-10 parts of microbial fermentation bacterium and 5-10 parts of aboriginal bacterium. The organic fertilizer is convenient in production and application methods, and is safe and effective. The verification proves that the organic fertilizer has the characteristics of enhancing the crop yield, reducing the chemical fertilizer and pesticide consumptions and the like. The organic fertilizer is prepared by carrying out compost fermentation on the silkworm litter and snail shell under the action of the microbial fermentation bacterium and aboriginal bacterium, can solve the problems of soil solidifying and hardening due to long-term use of the chemical fertilizer and pesticide, and can effectively enhance the crop quality.

The invention relates to an open type sea area sink cage long line breed method and device. The method comprises the following steps that firstly, a plurality of breed cages are taken, abalone or snails or the abalone and the snails are placed in the breed cages; secondly, the upper end of each breed cage is connected with a floating ball, and the lower end of each breed cage is connected with a floating rope; thirdly, the floating ropes are connected with balance weights, and the floating ropes sink in the sea area with the depth of 8-15 meters through the balance weights. The breed cages are placed in the sea area with the depth of 8-15 meters, and therefore the breed space is enlarged. The breed cages are placed in the sea area with the depth of 8-15 meters, and therefore predators are avoided, a large number of mussels and other creatures are prevented from being attracted to abalone shells or snail shells, and accordingly the growth of the abalone or the snails is not affected. The breed cages are placed in the sea area with the depth of 8-15 meters, and the effect of red tides and typhoons to breeding of the abalone or the snails is reduced.

The invention provides a planting method for selenium-enriched navel oranges and belongs to the field of agricultural planting. The planting method specifically comprises the following steps: firstly, selecting a land suitable for navel oranges to grow to prepare soil; selecting proper navel orange seedlings for fixed planting; before fixed planting, applying a base fertilizer which is prepared from a self-made organic fertilizer, a phosphate fertilizer and a potassium fertilizer into fixed planting holes, wherein the self-made organic fertilizer is prepared by mixing and fermenting navel orange rotten branches, fir rotten branches, rice hulls, water hyacinth, banana sticks, rape seed cakes, snail shells, azadirachta indica, pig manure and a corrosion catalyst; transplanting the seedlings to a field and pouring fixed planting water; and performing reasonable field management till fruits are harvested. The planting method provided by the invention can improve the percentage of fertile fruit of the navel oranges, save the fertilizer, improve the output, increase the selenium content in the fruits and improve the nutritional value. The method is suitable for large-scaled systematized planting, thereby increasing both production and income for planters.

The invention relates to the field of compound fertilizer, and in particular to a coating slow-released compound fertilizer for improving soil and promoting growth. The fertilizer is prepared from the following raw materials by weight: 10-15 parts of diatomite of 1250-2000 mesh, 15-18 parts of composted livestock and poultry manure, 2-4 parts of zinc sulfate, 12-15 parts of ammonium nitrate, 6-8 parts of potassium humate, 5-8 parts of calcium sulfate, 3-5 parts of magnesium sulfate, 2-3 parts of ferrous sulfate, 6-8 parts of a Tripterygium wilfordii aqueous extract, 2-5 parts of beer yeast, 4-5 parts of southern magnolia fallen leaves, 10-12 parts of wheat bran, 5-7 parts of Astragalus adsurgens all grass, 1-2 parts of snail shell powder, 1-3 parts of betaine, 4-6 parts of pigeon manure, 20-22 parts of urea, 14-16 parts of zein, 4-5 parts of polyvinyl butyral, a proper amount of 90% ethanol water solution, 2-3 parts of oleic acid, 1-3 parts of glycerol monostearate and 4-5 parts of an auxiliary. The compound fertilizer provided by the invention has extensive raw material sources and comprehensive and rich nutrients, utilizes diatomite and modified zein slow-released coating agent to form double coating on the nutrients in the production process, so as to realize lasting fertilizer efficiency; and the compound fertilizer contains a variety of natural soil improvers, improves soil vitality, and can continuously improve the yield and quality of crops.

A preparation method of Dendrobium nutrient fertilizer, which is composed of: chicken manure powder, pigeon manure powder, sponge gourd stem and leaf powder, sweet potato leaf powder, sesame cake powder, soybean cake powder, broad-leaved wood chips, plant ash powder, snail shell powder, shrimp Shell powder, rice husk powder, broken rice powder, corn cob powder, sorghum cake powder, sea fish meal, rapeseed cake powder, Datura powder, tea bitter powder, Chuanwu powder, the percentages described are percentages by weight; Containing various nutrients, the grown Dendrobium orchid leaves are fat, thick and tender, densely grown, strong in growth, good in light reception, rich in corolla colors, tall and straight inflorescences, bright and eye-catching, and excellent in landscape effects.

The invention discloses an apple planting method, comprising the steps of: wedding management, insect pest management, watering management, fertilization management, pruning, flower thinning and fruit thinning. According to the invention, the apple planting method is improved from various links, so that the apple quality is relatively good, the yield is relatively high, the management and planting costs are reduced, and the market position of apple is improved. Particularly, according to the apple planting method disclosed by the invention, an organic fertilizer obtained by fermenting pig manure, fowl dung, urine of horses, sweet potato wastes, egg shells and field snail shells is applied in cooperation with a plant source pesticide to attract and kill pests and ensure that apples are supplied with sufficient nutrients; and moreover, scientific watering and fertilization managements are carried out, thereby improving the quality of the apples.

The invention discloses a preparation method of a wear-resistant SBS (styrene butadiene styrene) sole material. The preparation method comprises the following steps: step 1, calcium carbonate, maleic anhydride, ethylene glycol and water are mixed, and modified calcium carbonate is obtained; step 2, modified calcium carbonate, neodymium oxide, strontium carbonate, alumina, magnesium oxide and absolute ethyl alcohol are mixed uniformly and sintered, and a first mixture is obtained; step 3, polyethylene glycol is added to the first mixture, the materials are sintered, and a second mixture is obtained; step 4, ethylene glycol, water, linoleic acid, sodium dodecylbenzenesulphonate, styrene and potassium sulfate are added to the second mixture for a reaction, and a third mixture is obtained; step 5, SBS, the third mixture, polystyrene, UHMWPE (ultrahigh molecular weight polyethylene), carbon black, terpene resin, lanthanum oxide, cerium oxide, zirconia, PEEK (polyether-ether-ketone) resin, oxidized polyethylene wax, macadimia nut shell powder, snail shell powder and bamboo fibers are uniformly mixed and subjected to milling, and the wear-resistant SBS sole material is obtained. The SBS sole material has the advantages of high strength and good wear resistance.

A concrete brick taking shell-animal shells as coarse aggregate is mainly prepared by adding proper amount of water into the following raw materials in parts by weight: 28-32 parts of shell aggregate, 20-25 parts of a fishing net, 405-412 parts of sand, 120-128 parts of fly ash, and 370-375 parts of portland cement. The shell aggregate is a mixed aggregate of natural snail shells with different dimensions, and the fishing net is fragments which is obtained by performing crushing processing on waste fishing nets and has the maximum width no more than 1 cm. The concrete brick product is high in strength, light in self weight and strong in construction adaptability, and has the advantages of sound insulation, thermal insulation and the like at the same time because of addition of the shell aggregate. Some islands are far from mainland, high-quality construction materials and construction teams are difficult to obtain, so the manner of using local materials is well accepted, and the local characteristics of islands are be fully embodied.

The invention relates to the field of building materials, and definitely relates to a concrete building block possessing a raw material containing shell-animal shells as an aggregate and a preparation method thereof. The concrete building block possessing the raw material containing shell-animal shells as the aggregate is prepared by adding proper amount of water into the following raw materials in parts by weight: 36-38 parts of shell aggregate, 460-469 parts of sand, 120-128 parts of fly ash, and 370-375 parts of portland cement. The shell aggregate is a mixed aggregate of natural snail shells with different dimensions. The concrete brick product is high in strength, light in self weight and strong in construction adaptability, and has the advantages of sound insulation, thermal insulation and the like at the same time because of addition of the shell aggregate. Some islands are far from mainland, high-quality construction materials and construction teams are difficult to obtain, so the manner of using local materials is well accepted, and the local characteristics of islands are be fully embodied.

The invention is a ventilator, comprising: framework, snail shell arranged in the framework, motor bracket arranged at the hatch in the snail shell, and motor arranged in the motor bracket, where the framework is of metal material, and it is characterized in that the motor bracket is of metal material. Because of good heat radiation performance and solidity, it has better safety and stability.

The invention belongs to the field of extracting glusulase, and particularly relates to an extraction method of glusulase. The extraction method comprises the following steps: selecting healthy snails, collecting snail slime with active enzyme from the snails through an extracting device, separating a snail shell from snail meat of the snails, the snail slime of which are extracted, and the like. The extraction method has the advantages of extracting high effective constituents from slime of live snails, establishing a quality base for snail slime extract, being a quality guarantee of the snail slime extract, thus being essential to the extraction of snail slime.

A heating ventilating fan comprises a body frame with an opening, a fan snail shell with a built-in fan, a heater assembly fixed at an air outlet of the fan snail shell and a temperature controller for detecting the indoor temperature. The temperature controller is buried on an air path wall. The heating ventilating fan has the advantages that the thinning change of the product is achieved when the structure is simplified and noise is reduced.

The invention relates to a ventilator, which comprises a framework, a snail shell and a fan, wherein the framework is provided with an opening, the snail shell is arranged in the framework and is provided with a wind suction opening, the fan is arranged in the snail shell, a circuit board box is arranged on the snail shell, a silencing plate is fixedly arranged on the outer periphery of the air suction opening of the snail shell of the ventilator, the silencing plate is in a streamline structure formed by using a rotating shaft of the fan as the center through rotating a 90-degree range in the direction opposite to the rotating direction of the fan from a tongue part of the snail shell and then enlarging towards the outside from the air suction opening in the rotating shaft direction of the fan, and the silencing plate has the arc-shaped chamfer shape set to be matched with the circumference of the air suction opening. The ventilator has the advantages that the silencing plate in the streamline structure is arranged in a high static pressure region rotating for 90 degrees in the direction opposite to the rotating direction of the fan from the tongue part of the snail shell, a good noise reduction effect is realized, in addition, the position of the existing circuit board box is changed, the existing circuit board box is changed to a position at the outer side of the silencing plate, and the air flowing of the air suction opening is not blocked, so the noise is further reduced.

The invention provides a raising method for selenium-enriched laying hens, and belongs to the technical field of stock farming. The raising method comprises the steps that firstly, a raising pond is selected, a henhouse with a ventilation device and an illumination device is built, laying hens are divided into a brood period, a growing period and a laying hen period according to different weak ages to be raised separately, the laying hens are fed with disease-prevention liquid medicine periodically, and feed of the laying hens is prepared from maize meal, bean pulp, wheat bran, smashed soybeans, pinecone powder, snail shell powder, bone meal, mountain flour, additives and plant extractives. The invention further provides a manufacturing method of the feed of the laying hens. The feed adopted by the raising method is formed by scientific combination, the feed contains abundant bioactivators, the effective components of the raw materials affect each other, the synergistic effect is achieved, laying hen feeding can be promoted, the immunity of the laying hens is improved, the disease incidence rate is decreased, the nutritive value of the laid eggs can be increased, the eggs contain various nutrient substances including the selenium element, and therefore the earnings of a farmer can be increased.

A food processing machine belongs to the technical field of food processing equipment. It includes feeding device, cleaning device, rolling device and screening device. The cleaning device includes a cleaning box, a spray head, a main shaft placed in the cleaning box, a secondary shaft, a conversion shaft, and a main motor and a secondary motor. The bottom of the cleaning box is a cone. Shaped structure, the main motor is connected with the main shaft, and the bottom of which is equipped with spiral cleaning blades; the auxiliary motor is connected with the conversion shaft, and the conversion shaft is equipped with gears; There are gears, which form a pair of transmission gear pairs with the gears on the conversion shaft. There are several arc-shaped cleaning blades at the bottom of the auxiliary shaft; the rolling device includes several pairs of rolling groups and conveyor belts. The conveyor belt is connected to the screening device through guide plates . The invention has a simple and reasonable structure, is easy to manufacture, is convenient to clean the snail shell, separate the shell from the meat, and can also clean and crush other similar food shells. The utility model has good performance and has a broad market space.

The invention relates to a method for preparing a supported catalyst based on calcium-based waste and a method for synthesizing a carbon quantum dot-carbon nanotube composite material with high adsorption performance through the catalyst. The preparation method comprises the following steps: (1) preparing a catalyst: preparing a calcium oxide carrier by using egg shells, duck egg shells, goose egg shells, quail egg shells, pigeon egg shells, ostrich egg shells, lobster shells, abalone shells, crab shells, shells, snail shells and oyster shells, and then preparing the catalyst by using one or more transition metal salts as precursors through an impregnation method; (2) synthesizing a carbon quantum dot-carbon nanotube composite material by using the catalyst prepared in the step (1), taking ethanol as a carbon source and adopting a chemical vapor deposition method; and (3) treating the composite material with dilute acid to obtain the purified composite material. The prepared carbon quantum dot-carbon nanotube composite material has the advantages of unique structure, large specific surface area and the like. Further study on the adsorption performance shows that the maximum adsorption capacity on methylene blue can reach 299.4 mg / g.

The invention relates to a high-efficiency organic fertilizer for vegetables in greenhouses and a preparation method of the high-efficiency organic fertilizer, and belongs to the technical field of the fertilizer. The high-efficiency organic fertilizer for the vegetables in the greenhouses is prepared from raw materials in parts by weight as follows: 22-30 parts of hare manure, 25-40 parts of pigeon's excrement, 12-20 parts of sheep manure, 5-10 parts of wormcast, 11-25 parts of grass carbon, 3-7 parts of snail shells, 8-12 parts of egg shells, 3-5 parts of cicada slough, 10-15 parts of rapeseed meal, 10-15 parts of soya bean meal, 25-40 parts of medical stone, 12-20 parts of pumice and 12-20 parts of zeolite. The high-efficiency organic fertilizer for the vegetables in the greenhouses is prepared from natural materials with certain method, does not contain toxic constituents, contains plenty of nutrient elements and minerals required by vegetable growth, can increase and update soil organic matters, promote microorganism reproduction and improve the physical and chemical properties and the biological activity of soil, thereby improving the soil.

The invention provides a domestic duck feed, which relates to a breeding feed of egg laying domestic ducks. The invention provides the domestic duck feed capable of increasing the feed nutrition and increasing the egg condition by using an organic additive. 5-100 g wolfberry and 10-200 snail shells are added to every one kilogram of basic feed. The snail shells are of granular shapes which are convenient for domestic ducks to eat; and 20-100 g dry powder particles obtained by grinding the wolfberry roots are further added to every one kilogram of basic feed. Snail shells are garbage and waste, which are hard to be treated by people, in daily life; according to the invention, snail shells are crushed and processed in granules which are convenient for domestic ducks to eat; and therefore, on the one hand, the snail shells (including field snail shells) are of cyan shapes so that the eggshell color are more similar to the cyan color; on the other hand, the feed is rich in calcium so that more calcium can be supplemented for the domestic ducks.

The invention relates to a manufacturing method for electroplated display artistic porcelain decorated by boat snail shells. The manufacturing method comprises the following four steps of: selecting petuntse; processing porcelain blank; processing and treating boat snail shells; and decorating the porcelain by the boat snail shells. The display artistic porcelain manufactured by the manufacturing method disclosed by the invention has natural surface grains and strong third dimension; the manufacturing method is capable of recycling pure natural and waste boat snail shells, converting the waste materials into economic benefits, so that the production cost is saved, the energy resources are saved and the environment protection is facilitated.

The invention discloses a fixed structure to assemble ventilation fan, which is characterized by the following: comprising with snail shell, motor, flabellum and hull constructed by flange; also comprising location device arranged between the flange and assembled face of wood strip; filling the gap between the flange and the top of the wood strip; fixing the ventilation fan on the wood strip; keeping gap between the ventilation fan hull and the inner side of the wall. This invention can decrease vibration of the ventilation fan through buffer and gap of the location device, which can increase stability of the product.

The invention relates to a river snail shell removing machine, structure of which consists of a funnel, a motor, a reducer, a helical shaft, a helical tube, a bracket and the like. A funnel opening is arranged above a large end of the helical tube and is connected with the funnel into a whole. A reducer base is connected with the bracket into a whole. An input shaft end of the reducer is connected with the motor, an output shaft end of the reducer is connected with the helical shaft, pitches of threads which are distributed on the helical shaft are in a trapezoid shape after being unfolded, the helical tube is sleeved outside the helical shaft, and the helical tube is a conical shape. When the river snail shell removing machine is in use, the motor is started to rotate, river snails entering the helical shaft are pushed by the helical shaft to continuously move forwards, the peripheral space of the river snails is gradually reduced, a river snail shell is smashed under the situation of bearing inner force from different directions, and then the smashed river snail shell and river snail meat are collectively discharged from a small end of the helical tube.

A preparation method of crabapple flower nutrient fertilizer, which is composed of: loofah naan powder, corn leaf powder, straw powder, broad-leaved wood chips, buckwheat shell powder, wood ash powder, snail shell powder, shrimp shell powder, dried rabbit dung, dried sheep dung , barley straw powder, bran powder, rapeseed cake powder, cottonseed cake powder, nuxychon seed powder, neem leaf powder, bitter gourd powder, tripterygium twig powder, the percentages described are percentages by weight; the cost of the nutrient fertilizer cultivated by the invention Inexpensive, easy to obtain raw materials, simple preparation and preparation methods, rich in various nutrients in the ingredients, promote the rapid growth and development of crabapple flowers, strong growth, good disease prevention performance, and the blooming crabapple flowers are large in size, bright and attractive .

The invention belongs to the field of processing devices of field snails and aims to provide a snail meat washing machine capable of efficiently removing snail shell and sand. The technical scheme adopted by the invention is as follows: the snail meat washing machine comprises a washing barrel, a stirring mechanism and a water supply mechanism, wherein the water supply mechanism is used for pouring water into the washing barrel; a plurality of snail shell discharging gaps extending along the radial direction of the washing barrel are formed in the bottom surface of the washing barrel; the snail shell discharging gaps are uniformly distributed along the center of the bottom surface of the washing barrel; a discharging opening capable of being opened and closed is also formed in the bottom surface of the washing barrel; the stirring mechanism comprises a rotating shaft; the rotating shaft extends vertically and is located at the center of the washing barrel; the rotating shaft is driven by a speed reducing motor which is fixedly arranged on a mounting plate; a plurality of stirring rods are arranged at the lower part of the rotating shaft; a flexible sheet is fixedly arranged on a stirring rod located at the bottom of the rotating shaft; the flexible sheet is in contact with the bottom surface of the washing barrel. The snail meat washing machine is capable of rapidly and efficiently removing the sand and the snail shell in the snail meat and is simple in structure and convenient to use.

The invention discloses a coating and a preparation method thereof. The coating is prepared from raw materials in parts by mass as follows: 6-13 parts of poly (vinyl versatate), 8-13 parts of maleic resin, 4-9 parts of monomethoxy polyethylene glycol butyraldehyde, 8-10 parts of isopentyldiol, 4-7 parts of a steroid mixture, 8-13 parts of polyethylene glycol terephthalate, 3-8 parts of river-snail shell powder, 5-8 parts of 4',4''-dyhydroxyl-2-formic acid-triphenylmethane, 8-13 parts of epoxy resin, 3-5 parts of montmorillonite, 2-4 parts of calomel, 2-4 parts of lime, 5-10 parts of trimethylolpropane tris(3-aziridinylpropanoate), 4-7 parts of dicyandiamide and 3-5 parts of titanium dioxide. The coating and the preparation method have the benefits as follows: the coating can resist to oil contamination and has moisture-proof and anti-cracking performance and is stable in performance, the strength and the stability are greatly improved, further, the cost is lower, the production cost is reduced, and the coating is environment-friendly and insect-resistant.

The invention discloses a method for processing a French style baked snail food. The raw materials are composed of vanilla snails, vanilla mashed garlic butter and snail vacant shells. The method for processing the vanilla snail comprises the following steps: cleaning fresh snails, adding thymus quinpuecostatus, rosemary, lindera communis hemsl, common fennel, organo, sweet basil and chicken powder, boiling with salt, adding edible oil or butter dry scallion, mashed garlic and black pepper and fine crushing, frying, spraying brandy, fennel wine and red wine and then taking out of a pan. The method for processing the vanilla mashed garlic butter comprises the following steps: overrunning the butter, adding thymus vulgaris, dry scallion, mashed garlic, almond powder, white pepper, salt, brandy and fennel wine, uniformly stirring and overrunning. The vanilla snail is placed in the snail shell, and the vanilla mashed garlic butter is used for sealing the snail shell. The application of the French style baked snail food is characterized in that the snail is placed in a baking oven for 6-8 minutes with the temperature of 200 DEG C-220 DEG C, and can be placed in a cold storage with the temperature of minus 18 DEG C for long-term storage, the product has the characteristics of fragrant flavor, smooth and tender meat quality, rich vanilla garlic fragrance and no antiseptic. The added composition takes plants as raw materials, and has the advantages of green, nutrition and health.

The invention discloses a method for brewing cucumis metuliferus fruit wine. According to the method, fresh cucumis metuliferus is adopted as a main raw material, polygonatum odoratum is added as an adjuvant, and the fruit wine is prepared through the steps of carrying out raw material screening, carrying out cleaning, carrying out raw material pretreatment, carrying out sweetness and acidity regulating, carrying out fermenting, carrying out mixing, carrying out blending, carrying out filtering, carrying out pouring and carrying out packaging. According to the method, cucumis metuliferus serves as the main raw material, polygonatum odoratum serves as the adjuvant, traditional Chinese medicine ingredients such as white snail shells, Scirpus triqueter, Drymoglossum bones, Cassiope selaginoides, Yunnan alpinia henryi, Litsea coreana, radix scutellariae, radix paeoniae alba, dandelion, Begonia yunnanensis and the like are added, nutritive values of cucumis metuliferus and polygonatum odoratum are fully utilized, and the used raw materials and the added traditional Chinese medicine ingredients are in synergy, so that the fruit wine prepared by the method has original nutritional ingredients of the raw materials, has the healthcare effects of warming the middle-jiao and strengthening the spleen and regulating Qi and nourishing the stomach and is beneficial to human health; and the preparation method is scientific and feasible and is high in operability, and the finished product fruit wine is golden-yellow or pale-yellow, is mellow, fresh and lasting-sweet in wine taste, faint-fragrant in flavor, coexisting in liquor fragrance and fruit fragrance and has a remarkable economic value.

The invention discloses a preparation method of a fuel additive and belongs to the technical field of fuel additives. The preparation method comprises the steps that firstly, snail shells are taken and smashed for ultrasonic oscillation, filtrate and filtration residues are respectively collected after filtration, then polyisobutylene, maleic anhydride and the like are subjected to stirring reaction, pH is regulated, standing is performed for layering, an organic phase is collected to obtain polyisobutylene succinimide, then silver oxide, aluminum oxide and the like are mixed with the filtration residues, the mixture is ball-milled into powder, the mixed powder is mixed with methyl alcohol to obtain mixed liquid, the mixed liquid is mixed with the filtrate, the polyisobutylene succinimide and the like to obtain a base material, and finally the base material, castor oil, potassium nitrate and the like are stirred and discharged to obtain the fuel additive. The prepared fuel additive is suitable for long-term storage and transportation, an oil layer emulsification phenomenon does not occur, engine running is not affected, the fuel additive does not contain sulfur, phosphorus and other substances, is green, environmentally friendly, does not destroy the environment or harm human and has a broad application prospect.

The invention provides an Aristichthys nobilis disease control breeding method, and belongs to the technical field of a husbandry technology. The breeding method includes: constructing a breeding pool, wherein the pool includes a water inlet and a water outlet; evenly scattering quick lime to the whole pool to perform disinfection according to the use mount of 55-60 Kg / mu; leading water to the pool after 10-12 days; applying a basic fertilizer to the pool water, wherein the basic fertilizer is made of plant ash, banana leaves, peat, snail shells, bagasse, bone powder, cow dung, manganese citrate, calcium superphosphate, ferrous sulfate and copper pyrophosphate; allowing the water to stand for 10-15 days, and putting Aristichthys nobilis fries to the pool; feeding the fries with fodder for 2-3 times each day; strictly managing the pool water quality during breeding, putting a water quality adjustment agent to the water once every 19-21 days, opening the water inlet and the water outlet of the pool to change the water every 19 days, starting an aerator to input oxygen to the pool, and spraying the whole pool with a disease control medicine to perform disinfection every 26-29 days. The breeding method can decrease the morbidity of the Aristichthys nobilis, can improve the utilization rate of the fodder, and can improve the yield and quality of products.

The invention provides a method for extracting chitin from snail shells and particularly relates to the technical field of aquatic product processing waste comprehensive utilization. The method includes: grinding, removing protein, removing calcium, decoloring and drying. The method has the advantages that the coordination of guanidine ion liquid and acid mixed liquid in the calcium removing and decoloring steps is beneficial to chitin structure protection and the removing of metal compound impurities such as calcium and pigment impurities; meanwhile, the ionic liquid for dissolving the chitincan be recycled, and greenness and environment protection are achieved; the chitin extraction rate of the method is more than twice of that of a conventional extraction method, the deacetylation degree of the extracted chitin is more than 30% lower than that of chitin extracted by the conventional extraction method, and the purity of the chitin is increased evidently; the method is simple to operate, controllable in process and easy to achieve large-scale production; the waste snail shells after snail meat production can be sufficiently utilized, and environment protection and resource savingare benefited.