226results about How to "To achieve a virtuous circle" patented technology

The invention discloses a method for producing synthesis gas by using slurries containing hydrocarbon matter. The method comprises the following six parts of: the preparation of the slurries containing the hydrocarbon matter, the pressurization high-temperature gasification of slurries containing the hydrocarbon matter, the cooling and ash removal by bubbling water-bath temperature-reduction of high-temperature crude synthesis gas, the temperature-reduction dust removal and washing purification of the crude synthesis gas, the discharging of the crude ash, and the processing of the water containing fine ash. The method is not only applicable to the pressurization high-temperature gasification of solid-state or liquid-state hydrocarbon matter, but also applicable to the pressurization high-temperature gasification of the mixture of various solid-state and / or liquid-state hydrocarbon matters simultaneously. The method has good gasification index, simple device, less investment and convenient operation, is easy for upsizing, and has the positive effects of being wide in the applicable range of raw materials, being environment friendly and the like.

The invention provides an integral prevention and control method for dark plum pest diseases and belongs to the field of fruit tree pest disease prevention and treatment. The integrated assembly is carried out on five prevention and treatment measures including pest condition monitoring, agricultural prevention and treatment, physical prevention and treatment, biological prevention and treatment and chemical prevention and treatment by aiming at the four phenological periods including the sprouting and flowering period, the young sprout growth and fruit development period, the fruit harvesting and nutrition recovering period and the leaf falling and dormancy period in the annual growth process of the dark plum, the respective defects in the use process are overcome, the cooperated pest disease control effect is sufficiently realized, and the integral prevention and control measures applicable to the pest diseases in each phonological period are provided. The method provided by the invention can be used for effectively controlling the occurrence and the harm of the major pest diseases of the dark plum, the harm of the pest diseases of the dark plum is controlled in an economic threshold value range, the use times and the consumption of pesticide are obviously reduced, the important significance is realized on the public-hazard-free dark plum production and the environment protection, and the harmless production of the dark plum and the virtuous cycle of the natural ecological system are realized.

The invention discloses a saline-alkali soil improving agent, and a preparation method thereof. The preparation method comprises following steps: fermented plant fiber and fermented animal excreta are uniformly mixed and grinded so as to obtain a mixture of 80 to 100 meshes; wood vinegar and water are added, uniform mixing is carried out, and an obtained mixed material is subjected to pelletizing and drying until water content ranges from 3 to 8%, wherein the adding amount of water accounts for 5 to 30% of the total weight amount of the mixture; an obtained product is sieved so as to obtain a granular mixture with a particle size ranging from 3 to 5mm; the granular mixture is subjected to drying and cooling, and a microorganism agent is sprayed onto the surface of the granular mixture; and an obtained semifinished product is uniformly mixed with a mixture A and a mixture B so as to obtain a finished product, wherein the mixture A is obtained via uniform mixing and grinding of ground phosphate rock, vermiculite, medical stone, sodium alginate, and polyacrylamide to 120 to 200 meshes, and the mixture B is obtained via uniform mixing and grinding of humic acid and furfural residue to 80 to 100 meshes. The saline-alkali soil improving agent is capable of reducing soil alkalinity, activating soil, reducing salinity and alkalinity effectively, improving saline-alkali soil structure, improving soil fertilizer conservation and water-holding capacity, improving saline-alkali soil physical and chemical properties, and realizing positive cycling of saline-alkali soil.

The invention discloses an intelligent garbage classification monitoring device, which comprises a garbage temporary storage box, a door, a card reader, a card, a photographing assembly and a server, wherein the door is locked through a locking mechanism; the card reader is arranged on the inner side wall of the outer box body, and the chip of the card reader is in communication connection with the locking mechanism of the door; the photographing assembly comprises a first camera arranged around the garbage temporary storage box and a second camera arranged on the inner side wall at the top part of the outer box body; and the server is in communication connection with a weighing device, the card reader and the photographing assembly through a network module. Through real-time monitoring and acquiring picture information of people throwing garbage everyday and carrying out comprehensive analysis on the data, a reward is given to a resident with correct garbage classification and throwing, a resident with wrong classification is punished, the resident is promoted to automatically classify the garbage, and a virtuous cycle is realized. Besides, the invention also provides a system for using the intelligent garbage classification monitoring device for garbage classification management, visual management is carried out on garbage classification, and the working efficiency is improved.

The invention relates to a welding spot quality detection method based on a deep learning target detection algorithm and an implementation system thereof, and the method comprises the following steps:(1) collecting data and carrying out the pre-processing: collecting the position and category of each welding spot in a picture, carrying out the marking, and enabling the size of the picture to be unified; (2) extracting features; (3) automatically generating a plurality of suggested areas by using an RPN network, and mapping the suggested areas to the feature map of the last layer of the deep convolutional neural network model; (4) screening and generating a feature map with a fixed size; And (5) sending the welding spots into a boundary regression network and a classifier to obtain positions and types of the welding spots so as to prompt detection personnel whether to reprocess the circuit board or not. According to the invention, automation is completely realized, professional knowledge of welding spot detection is not needed, the problem of unstable working efficiency of workers is fundamentally avoided, a large number of quality inspectors do not need to be employed, a large amount of labor force is liberated, and meanwhile, the production cost is saved for enterprises.

The invention discloses a livestock feed additive composition and the preparation method and the application thereof. The livestock feed additive composition comprises following ingredients by weight percentages: 70 to 90 percent of medicated leaven, 70 to 90 percent of sweetflag, 35 to 45 percent of tangerine peel, 35 to 45 percent of dyers woad leaves, 35 to 45 percent of isatis root, 25 to 35 percent of white peony, 25 to 35 percent of divaricate saposhnikovia root, 25 to 35 percent of fennel, 25 to 35 percent of liquorice and 90 to 110 percent of lack tartary buckwheat. The invention adopts natural Chinese herbal medicine, can fully avoid damaging human bodies by added chemical synthetic drugs and toxic chemical substances, does not generate the cross drug resistance of the drugs shared by human beings and livestock, is favorable to the enhancement of the organism immunity of livestock and improves the metabolism capability of the livestock so as to achieve the aims of resisting diseases and promoting the growth of the livestock .

The invention is suitable for the technical field of Internet, and provides an education resource sharing method based on a block chain. The method comprises the following steps of receiving right confirmation information uploaded by a copyright owner, carrying out right confirmation verification according to the right confirmation information, and if the verification is passed, generating an intelligent contract; displaying a digital education work according to a preset display mode; generating a transaction contract when purchase information containing partial ownership of the digital education work is received, and sending the transaction contract to the copyright owner and a copyright purchaser; and if the transaction contract is judged to be effective, changing the ownership of the digital education work according to the purchasing information, and storing the change information in the block chain. According to the embodiments of the invention, the digital education work is guaranteed to be fair and equitable through the unique advantages of the block chain, and a great number of digital education works can be effectively managed, so that an open and transparent environment can be provided, and the copyright owner of the digital education work and scattered investors can better buy and sell digital rights in order to obtain copyright benefits simultaneously.

The invention discloses a microcapsule intumescent flame-retarding starch-based degradable material and a method for preparing the same. The method is characterized in that: starch is mixed with plasticizer and compatibilizer, heated to between 70 and 100 DEG C, added with biodegradable high molecular compound, microcapsule intumescent flame retardant and flame-retarding catalyst, and the intumescent flame-retarding starch-based degradable material which is formed by the starch, the plasticizer, the compatibilizer, the biodegradable high molecular compound, the microcapsule intumescent flame retardant and the flame-retarding catalyst is obtained by extruding obtained powder lot for granulation. The method utilizes the flame-retarding synergistic effect of C, N and P, introduces the microcapsule intumescent flame retardant to inhibit untoward reaction of the flame retardant and the starch, and improves the flammability of the material; and the product obtained has excellent flexibility and mechanical property, good water resistance and oil resistance and good flame retardant property, is nontoxic and harmless, can be completely biodegraded, and can be used in the fields such as packages, laminated materials, sport and sanitary articles and so on.

The invention discloses a method for ecologically culturing high-quality red testis river crabs, which fully utilizes natural conditions and resources of ponds, natural waters, rivers, reservoirs, lakes and wetlands, starts from biological, ecological and environmental mechanisms, follows the characteristics of respective econiches occupied by various organisms in biology, is based on biological characteristics of river crabs such as life habit, feeding habit, growth and development and the like, reasonably applies ecological balance breeding technology and nutrient balance technology, builds the best ecological environment of the culture of the river crabs, and meets the nutritional need of the growth and development of the river crabs to raise the high-quality 'red testis' river crabs. The ecological culture method comprises the following steps of: culture pond pretreatment, aquatic plant cultivation, shellfish transplantation, freshwater shrimp stocking, crab seedling stocking, siniperca chuatsi delivery, water quality control, bait feeding, and disease control. The method for culturing the river crabs can produce the high-quality and high-grade 'red testis' river crabs, can greatly improve the economic benefit of crab farmers, and can greatly improve the sustainable development of crab culture industry and the ecological benefit, the economic benefit and the social benefit of crab culture.

The invention provides the application of a silkworm raising byproduct of a silkworm excrement fermentation waste to the edible fungus culture. The silkworm excrement is taken as the biogas fermentation raw material; and the marsh liquid and marsh refuse after the biogas fermentation can be further reutilized. The marsh liquid can be taken as the liquid fertilizer for the earthing edible fungus culture after being processed; and the marsh refuse can be taken as the fungus culture material after being processed. Therefore, the edible fungus culture cost can be reduced. While another silkworm raising byproduct of mulberry twigs can be prepared into fungus rods for the production of the edible fungus after clipping, crushing, sterilization and inoculation. The invention can improve the comprehensive utilization of the silkworm raising byproducts, reduce the environmental pollution, realize the cyclic production of the edible fungus, and reduce the production cost of the edible fungus.

The invention relates to the field of civil engineering bridges, in particular to a bridge total external prestress concrete segment spliced light thin-walled box girder formed by splicing a plurality of prefabricated segments. The bridge total external prestress concrete segment spliced light thin-walled box girder comprises pier top segments, turning segments and external prestress steel penetrating the pier top segments and the turning segments. The bridge total external prestress concrete segment spliced light thin-walled box girder has the beneficial effects that a brand new box girder structural form is created, a vacancy in the prestress technology in China is filled up, and the problems that the theory is vague and the standard is vacant in the domestic external prestress concrete bridge structural design are solved with the concept of a 'multi-span hidden type extradosed cable-stayed bridge'; the external prestress steel is totally arranged outside girder body concrete, corrugated pipes do not need to be embedded, and the grouting construction is not needed; and the concrete pouring quality is high, the splicing and bridge forming speed is high, and the splicing speed of seven days for one span can be achieved for medium and small span bridges.

The invention provides a method for preparing SrCuSi4O10 and BaCuSi4O10 blue pigments through a hydrothermal technique, and belongs to the technical field of hydrothermal chemistry. The method uses copper oxide powder or copper salt, barium salt or strontium salt, and silicate as raw materials, and NH4OH as a mineralizing agent and comprises the following hydrothermal reaction processes: mixing a reactant with distilled water according to a stoichiometric ratio of an objective product, adjusting the pH value of a solution to be greater than 10 and less than 14, putting in a high-pressure reactor so as to enable the filling degree to reach 40%-90%, sealing and reacting for 5-72 hours at the temperature of 230-300 DEG C; and cooling and filtering so as to obtain products. The invention provides a new reaction route and a green preparation method for SrCuSi4O10 and BaCuSi4O10 difficult to prepare. The products are multi-level structure microparticles, have high purity, regular morphology and good dispersity and are uniform in particle size. The preparation method is simple, efficient and high in yield; waste liquid generated in a hydrothermal reaction process can be recycled.

The invention discloses a novel three-dimensional compound planting method for an ecological tea garden. Overshadowing trees are planted suitably to reach a shading coefficient of 20 to 30 percent on the two sides of a road of the tea garden and around the tea garden. Green manure is planted between rows and in open spaces of the tea garden. Poultries are stocked, and stocking density is 50 to 100 chickens per mu. A balance relationship between the natural environment and animals, plants and microorganisms is used for the symbiotic cooperation of many kinds of animals and plants and the contradictive and supplemental balance of many kinds of insects in a food chain to realize the virtuous circle of a biologic chain. Energy and substances such as soil productivity, sunlight and water are fully used for realizing a multilevel green protection ecosystem, controlling water and soil loss, preventing pest and disease damage, preventing the use of chemical pesticides in the tea garden, solving the problem of pesticide residues on tealeaves and ensuring the yield and quality of the tealeaves.

The invention relates to an inspection managing method for a drainage pipeline network, which can realize the intelligentization of the management of the inspection of the drainage pipeline network, the correct record and convenient recheck of the inspection tracks and the record and feedback of the event processing information and meet the requirements of the inspection staff and a monitoring center to communicate information effectively and timely. The method effectively avoids the problems that inspection points in the inspection of the drainage pipeline network are omitted, the management of the inspection is ineffective, and the inspection efficiency is low, and the method can achieve the real-time convenient collection of different kinds of data and comprehensive management; the inspection managing method for municipal drainage pipeline network is characterized by carrying out the inspection process of the pipeline network through a pipeline network inspection system; and the network inspection system is established by adopting combination of an M / S mode and a B / S mode and comprises an M / S inspection management sub-system and a B / S inspection management sub-system.

The invention relates to pig feed addictive the process for producing the additive composition, and the use of the additive composition, which is characterized in that, no chemosynthesis antimicrobial agent and toxic hazardous material are present, the composition is prepared from crude Chinese medicinal preparations.

The invention discloses a saline-alkali land improvement fertilizer and a preparation method thereof. The preparation method comprises the following steps: uniformly mixing 5-20 parts of phosphogypsum, 3-5 parts of a sodium ion adsorbent and 5-10 parts of medical stone in a mixing machine so as to obtain a material A; uniformly mixing 5-10 parts of an acidic conditioning agent, 15-40 parts of soluble humic acid and 20-35 parts of wood vinegar liquid, adding the obtained liquid B into the material A in the mixing machine, performing uniform mixing and stirring so as to obtain slurry C, feeding 35-50 parts of farmyard manure and 15-20 parts of straw powder into the slurry C, performing uniform mixing, feeding 2-5 parts of a microbial agent and 10-15 parts of 61-65% Tween-80 into the material liquid, and performing uniform mixing, thereby obtaining the saline-alkali land improvement fertilizer. As multiple saline-alkali land improvement measures that the soil salinity and alkalinity are improved by using a chemical method, the physical and chemical properties and the structure of soil are improved by using microorganisms, nutrient components of soil are improved by adding fertilizers, and the like, are integrated, the saline-alkali land improvement fertilizer is good in saline-alkali land improvement effects, and long in action time, and virtuous circle of saline-alkali land soil is achieved.

The invention relates to a formula of cotton stalk scrap bag-carried feed of auricularia polytricha and a cultivating method of auricularia polytricha, in particular to a technique of cultivating the auricularia polytricha by using cotton stalk scraps as a main material to replace most of sawdust. The cultivating method comprises the main steps of feed preparation, formula preparation, bag makingand management from inoculation to fungus generation. The cultivating method of the auricularia polytricha has the advantages of making full use of agricultural wastes, reducing production cost, reducing consumption of forest products, realizing virtuous circle of substances and achieving larger ecological benefit.

The invention discloses a device for hatching and culturing Salmonidae fishes with a controllable temperature, which relates to a fish hatching and culturing device and aims at solving the problems that the hatching rate and survival rate of Salmonidae fishes are low due to the poorer culturing environment and the uncontrollable culturing environment when hatching floating larva and culturing newly hatched young fries in the prior art. The device is characterized in that a closed separation zone, a water storage tank and a refrigeration zone are arranged on the upper part in an aquarium; the closed separation zone is communicated with one end of a water return pipe; a filter layer, a heating rod, a water pump and an aerating pore plate are arranged in the water storage tank; the other endof the water return pipe is communicated with the water storage tank and is arranged above the filter layer; the aerating pore pipe is communicated with an oxygen pump which is arranged outside the aquarium; the water pump is communicated with an ultraviolet light sterilizing device which is arranged outside the water storage tank through a pipeline; the ultraviolet light sterilizing device is communicated with the refrigeration zone through the pipeline; a temperature sensor is arranged in the refrigeration zone; the refrigeration zone is communicated with the closed separation zone through the pipeline; and the refrigeration zone is communicated with a compressor which is arranged outside the aquarium through an expansion valve. The device can be used for hatching and culturing the Salmonidae fishes.

The invention relates to an integrated planting and breeding method employing an ecological planting and breeding cycle chain mode. The method is based on hills, mountain areas and forest lands, and chooses to interplant vegetables and breed native chickens under the forest, and chooses to build homes for pigs and an aquaculture pool at the foot of mountain areas. Young native chickens are subjected to conventional cultivation, and then stocking is conducted in the forest lands. The aquaculture pool is used for culturing aquatic products or fishing and entertainment. Feces of pigs, produced through pig breeding, and weeds and leaves in the forest lands are put into a biogas digester, and the obtained biogas after harmless treatment is used as clean-energy fuel to cook food for pigs. The fertilizer which is applied to interplanted vegetables in forest lands and under forests is formed by mixed fermentation of chicken manure produced through chicken breeding and biogas slurry from the biogas digester, and other fertilizers are not applied. The biogas residues and vegetables waste leaves are used to raise insects and chickens or breed aquatic products, thereby realizing the recycling of manure and urine. Through adoption of the integrated planting and breeding method, virtuous circle of materials and energy in the forest ecosystem is realized, and the efficiency of agricultural production is improved and the effective cycle of planting and breeding is realized.

The invention relates to a cultivation and breeding seamless linking circulation mode for promoting ecologic balance. The cultivation and breeding seamless linking circulation mode comprises a planting area, a livestock breeding area, a special cultivation and breeding area and a biological energy production area. Compared with the prior art, the circulation mode provided by the invention is capable of organically combining cultivation, livestock breeding and special cultivation and breeding, wastes such as straw generated in the cultivation industry can be utilized with high values, meanwhile wastes generated in the breeding industry are processed and treated to form an organic fertilizer which can promote the cultivation industry and can be used as a base material for special breeding, effective circulation and seamless linking of cultivation and breeding, the purposes of providing green agricultural products such as fruits and vegetables, pasture, meat, eggs, high-quality animal products and special traditional Chinese medicine materials can be achieved, the agricultural production efficiency can be improved, and the quality of agricultural products can be improved. A mode that companies and farmers are combined can be adopted, a driving effect can be brought into play step by step, and thus good circulation of the mode can be achieved.

The invention discloses a saline-alkali soil improving method. The saline-alkali soil improving method comprises the following steps of A, deep-ploughing and levelling saline-alkali soil; B, performing buried pipe salt removal on the leveled soil; C, after buried pipes are laid to irrigate the saline-alkali soil; D, applying soil targeted conditioning agent to the processed saline-alkali soil; E,planting saline-alkali tolerant rice. The saline-alkali soil improving method sets a wireless transmission mode inside a planting area to achieve remote rice growth monitoring, can significantly improve the physical structure of the saline-alkali soil, reduce the total salt content of the saline-alkali soil, activate soil, preserve water and fertilizer, increase the organic content of the soil, improve the physicochemical properties of the saline-alkali soil and further achieve long-term virtuous cycle of the saline-alkali soil.

The invention provides a small-sized mobile grain stock drying warehouse, which consists of ventilation drying warehouse and hot air stove, wherein the ventilation drying warehouse and hot air stove are set on the same chassis; the indexable conveyor is set in the bottom outlet of ventilation drying warehouse; the grain lifter is set on one side of ventilation drying warehouse, which circulates the grain between outlet and inlet of ventilation drying warehouse; the base of hot air stove contains straw burning furnace; the heat-exchanger is set on the top of hot air stove, whose hot air outlet connects the ventilation drying warehouse through hot air pipe. The invention can dry the grain timely to improve the quality of grain and adapts the straw as fuel to reduce the coal consumption, whose ash is fertilizer for field directly.

The invention relates to a utilizing method for producing zinc oxide products by utilizing zinc-containing dust ash of a steel plant and recycling ferric carbon for returning to smelting. Zinc in the dust ash is leached by use of an ammonia method; materials which have the zinc content greater than 15% and contain non-vulcanized zinc are added for increasing the concentration of a zinc solution; leachate is purified, cleaned and subjected to ammonia distilling, and zinc oxide is prepared after electrolytic zinc preparation or zinc deposition; and original dust ash tailings or screened dust ash tailings are sent into a blast furnace for smelting, or a conventional pyrogenic process is adopted for recycling ferric carbon from the original dust ash tailings or the screened dust ash tailings, and collected secondary zinc oxide dust ash is used for the front end leaching, so that the zinc concentration of the leachate is increased. The utilizing method can be applicable to dust ash, with the zinc content as lower as 4% or even lower, of the steel plant; by use of a conventional method, the zinc extraction rate and the removing rate of harmful substances including alkali metal, fluorine and chlorine are both above 90%; the dust ash tailing recovery process is high in equipment adaptability, and appropriate treatment processes can be chosen according to existing equipment; and efficiency is high, the environment is protected, and comprehensive cyclic utilization of the zinc-containing dust ash is achieved.

The invention relates to a loach ecological cycle running water culture system. The system comprises a rectangular loach culture pond, a drainage ditch, tubificidae culture ditches, wetland purification trenches and a clean water convergence trench, drainage pipes are arranged on the pool wall of the rectangular loach culture pond, the drainage ditch and the tubificidae culture ditches are arranged at the outer side of one end of the rectangular loach culture pond, and the clean water convergence trench is arranged at the other end of the rectangular loach culture pond. The wetland purification trenches are arranged at one side of the rectangular loach culture pond, and a water body flows through the bottom layers of loach culture pools, the drainage ditch, the tubificidae culture ditches, the wetland purification trenches, the clean water convergence trench and the loach culture pools in sequence. According to the loach ecological cycle running water culture system, by the adoption of the soilless running water culture mode, bottom mud is replaced with submerged plants, the loach inhabiting and ingestion environment is optimized, waste water for culturing loaches is utilized for culturing tubificidaes, living bait is provided for the loaches, a wetland system is utilized for purifying water, the efficient cyclic utilization of the water body is achieved, the loach quality is improved, and the loach output is increased.

The invention relates to a renewing and transforming method for oasis protection forest in drought regions. The method is characterized by comprising the following steps of: in front of wind sand, carrying out row alternated cutting mode on an original Populus bolleana forest belt, (namely retaining one row of Populus bolleana and cutting one row of Populus bolleana, then retaining one row of Populus bolleana and cutting one row of Populus bolleana, and the like), and separately planting Populus bolleana seedlings and russian olive seedlings in the cut rows in the forest belt in an inter-plant mixing mode; carrying out early-stage protection on the seedlings by utilizing the retained Populus bolleana to guarantee the survival and growth of the Populus bolleana seedlings and russian olive seedlings; and cutting the retained Populus bolleana after newly planted Populus bolleana and russian olive have a certain protection effect, and renewing the oasis protection forest by the same method. By the adoption of the method provided by the invention, healthy growth and protection function of the oasis protection forest can be achieved and fine circulation of wood can be provided.

The invention relates to the field of environmental protection, and discloses a sand dune slope greening recovery device. The sand dune slope greening recovery device comprises an ecological bag, a connecting buckle provided with a pawl, a drainage pipe, a soil improvement fiber composition, vegetation seeds and an anti-erosion fiber composition. The ecological bag has excellent physical performance, good water-permeating performance and good ultraviolet ray resistant performance. The sand dune slope greening recovery device well satisfies soil and nutrient substances needed by the growth of sand dune slope plants to achieve the purpose of restoring a natural environment, protecting ecological balance and beautifying the environment, the growth of the plants is promoted, twisted and gnarled root systems effectively fix a sand dune, the growth of the plants years after years effectively improves the sandy soil layer, the ecological circulation is improved, and a certain noise reductionand dust removing effect is achieved.

The invention discloses a method for producing high-purity nanometer zinc oxide by using ammonia process decarburization of steel plant dust. The method for producing high-purity nanometer zinc oxide by using ammonia process decarburization of steel plant dust comprises the following steps of: carrying out leaching with an ammonia-ammonium carbonate solution as the leaching agent, adding 0.3-0.5kg of sodium fluosilicate into the leaching agent per cubic meter to obtain a leaching solution, then adding 50-60kg white lime into the leaching solution per cubic meter to carry out heating decarburization, and carrying out purification and impurity removal and then refining treatment. According to the method, the ammonia process is used for treating steel plant dust, and the existing ammonia process is adaptively improved, the leaching speed and the leaching rate of zinc in the dust are improved, and zinc oxide with the purity of more than 99.7 percent can be obtained; the method has the advantages of low energy consumption and high efficiency, and thoroughly solves the problem of zinc load of steel plant dust as the leaching agent can be recycled, thereby meeting the requirement of purifying the toxic components including zinc and alkali metals and realizing good production circulation.

The invention relates to a method for continuously producing benzotriazole. The method is characterized by being realized through a continuous production system and comprises the following specific steps: putting process water and solid sodium nitrite according to a mass ration of (0.4-0.6): 1 into a dissolving kettle to form a sodium nitrite solution; respectively pumping o-phenylenediamine and the sodium nitrite solution into a reactor for reacting; feeding a reaction product inside a protective reactor, fully reacting and feeding into an acidifying kettle, feeding gas generated in the acidification process in an alkaline washing tower, and separating the acidified reaction liquid to form a crude product benzotriazole and wastewater; feeding the crude product benzotriazole into a water washing kettle, and bagging and recovering solid sodium sulfate; feeding into the water washing kettle, layering the solution and dehydrating the lower layer material. By the method, the productivity is improved, the energy consumption of a product is decreased and the environmental pollution is effectively reduced; enterprises obtain considerable benefits so that the virtuous circulation is achieved.

The invention relates to the field of environmental protection and discloses an ecological bag and a rock slope re-greening device. A preparation method of the ecological bag comprises the following steps: (1) mixing polypropylene fiber colloidal particles and anti-aging polypropylene master batches, so as to obtain a mixture; (2) heating and fusing the mixture of the step (1), carrying out extrusion to form filaments, and carrying out oiling, traction, crimpy cutting and drying formation, so as to obtain an anti-aging polypropylene short fiber; and (3) carrying out loosening, carding, lapping, needling, heat setting and winding on the anti-aging polypropylene short fiber, so as to obtain the ecological bag. According to the ecological bag and the rock slope re-greening device, the technical defects that an unaesthetic structure is formed, the ecological environment is easily damaged, and the covered structure is unsteady after a rock slope is covered by virtue of existing lattice girder method, slurry stone-laying method and guniting method are effectively solved.

The invention discloses a method for producing high purity nanometer zinc oxide by using ammonia process of steel plant dust. According to the method, white lime of 3-5 percent of the mass of steel plant dust is added for activation before leaching, then leaching is carried out with an ammonia-ammonium carbonate solution as the leaching agent, 0.3-0.5kg of sodium fluosilicate is added into the leaching agent per cubic meter, and purification and impurity removal are carried out and then refining treatment is carried out. According to the method, the ammonia process is used for treating steel plant dust, the existing ammonia process is adaptively improved, and high purity nanometer zinc oxide with larger specific surface area can be obtained; and the method has the advantages of low energy consumption and high efficiency, and thoroughly solves the problem of zinc load of steel plant dust as the leaching agent can be recycled, thereby meeting the requirement of purifying the toxic components including zinc and alkali metals and realizing good production circulation.