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294results about How to "Environmentally friendly" patented technology

Molten steel slag centrifugal granulation treatment and waste heat recovery system

The invention relates to a molten steel slag centrifugal granulation treatment and waste heat recovery system which is characterized in that a slag inlet is formed in the top of a centrifugal granulation bin, a rotating disc and a rotation driving motor are arranged in the centrifugal granulation bin, the rotating disc is arranged below the slag inlet, and the rotating disc is driven by the rotation driving motor; the low-melting-point eutectic metal self-flowing bed waste heat boiler is arranged below the centrifugal granulation bin, a self-flowing bed waste heat boiler heat exchange pipe is arranged in the low-melting-point eutectic metal self-flowing bed waste heat boiler, and low-melting-point eutectic metal is loaded in the self-flowing bed waste heat boiler heat exchange pipe. High-grade waste heat recovery of the high-temperature molten steel slag is achieved, the blank of heat energy recovery of a steel mill is filled up, and energy conservation, emission reduction and carbon reduction of the steel mill are greatly promoted. The two links of centrifugal granulation treatment and waste heat recovery are comprehensively and integrally designed, the structure is simpler and more compact, the efficiency is higher, operation is easy and convenient, the production implementation process is safe, and the device can be applied and popularized in ferrous metallurgy enterprises.
Owner:魏冬

Photo-crosslinking conductive ink based on aliphatic polycarbonate as well as preparation method and application of photo-crosslinking conductive ink

The invention provides photo-crosslinking conductive ink based on aliphatic polycarbonate as well as a preparation method and application of the photo-crosslinking conductive ink. The photo-crosslinking conductive ink comprises an aliphatic polycarbonate polymer, a plasticizer, a crosslinking agent, a crosslinking catalyst and a photo-crosslinking agent. According to the invention, a carbonate monomer 5-methyl-5-carboxyl trimethylene carbonate initiated by PEG2000 is adopted, and an aliphatic polycarbonate polymer is synthesized through a copolymerization reaction and is used as a main matrix material of the conductive ink; the conductive ink not only has good conductivity, but also has biocompatibility and environmental friendliness, and the application range of the conductive ink in the fields of medical instruments, biosensors and the like is widened; the excellent mechanical property ensures that the conductive ink can keep structural integrity and functional stability in practical application, and the conductive ink is particularly suitable for flexible electronic devices and wearable equipment which need to be frequently bent and stretched. The preparation steps are simple and convenient, the process is controllable, raw materials are easy to obtain, energy consumption in the process is low, and the cost advantage is achieved.
Owner:NINGDE NORMAL UNIV

Electrode material for lithium extraction and preparation method thereof

The invention relates to an electrode material for lithium extraction, a preparation method of the electrode material, a lithium extraction electrode and a lithium extraction system, belongs to the field of salt lake lithium extraction, and solves at least one of the problems of fast capacity fading, relatively low overall lithium extraction efficiency and short service life of a lithium extraction electrode for an alkaline solution in the prior art. A preparation method of an electrode material for lithium extraction comprises the following steps: mixing an electrode active material with a rare earth salt solution, and forming a phosphate rare earth layer on the surface of the electrode active material in an in-situ coating manner; the electrode active material comprises lithium iron phosphate and a doped derivative thereof. When the preparation method, the obtained electrode material, the lithium extraction electrode and the lithium extraction system are applied to lithium extraction of salt lake brine, especially alkaline brine, at least one of the cycle performance, the lithium extraction efficiency and the service life is remarkably improved.
Owner:CENT SOUTH UNIV

Method for degrading micro-plastic by using composite semiconductor photocatalyst

The invention discloses a method for degrading micro-plastics by using a composite semiconductor photocatalyst, and relates to the field of environmental protection, in the preparation process, transition metal copper powder and semiconductor material titanium dioxide are firstly mixed and dispersed in absolute ethyl alcohol, so that the copper powder and the titanium dioxide can be ensured to be fully and uniformly mixed together; and filtering, drying and calcining together to obtain the copper oxide and titanium dioxide composite semiconductor material. The defect that titanium dioxide is low in response to visible light is effectively overcome, electron-hole separation is promoted, the electron-hole mobility is improved, the catalyst convenient to prepare is provided for photocatalytic degradation of micro-plastics at normal temperature and normal pressure, and the method has the advantages of being simple in process, low in price, mild in reaction condition and the like.
Owner:TIANJIN UNIVERSITY OF TECHNOLOGY

CeO2-MnOx superfine nanofiber catalyst as well as electrostatic spinning preparation method and application thereof

The invention discloses a CeO2-MnOx superfine nanofiber catalyst as well as an electrostatic spinning preparation method and application thereof, and belongs to the technical field of material preparation and environmental protection. N-N dimethylformamide (DMF) is adopted as a solvent, cerium nitrate hexahydrate and manganese acetate tetrahydrate are adopted as precursor salts, polyvinylpyrrolidone (PVP) is adopted as a flocculating agent, a gelatinous precursor solution is formed, jet stretching is performed under the high-voltage electrostatic effect, a nanofiber membrane is obtained at the collecting end, and after drying, the CeO2-MnOx superfine nanofiber is obtained through calcination of a stepped heating program. The diameter of the catalyst is 300-400 nm, the catalyst has good oxidation reduction capacity, by means of the efficient electron transfer capacity of the nanofiber morphology and the confinement effect of a fiber cavity, the catalyst shows excellent ultralow-temperature denitration activity and sulfur resistance, denitration reaction is carried out within the temperature range of 75-225 DEG C, the NO conversion rate can be 95% or above, and the catalyst has the advantages of being low in cost and high in efficiency. The catalyst can be applied to the field of flue gas ammonia selective catalytic denitration in non-power industry, and has a good industrial application prospect.
Owner:JIANGSU UNIV OF SCI & TECH

Automatic pruning device for highway green belt

The invention relates to the technical field of green belt trimming application, in particular to an automatic highway green belt trimming device which comprises a cross beam, a limiting assembly, a trimming assembly and a smashing assembly.The automatic highway green belt trimming device is exquisite in design, compact in size and capable of working under the condition of not occupying too much space; the cross beam serves as a main structural part, the supporting legs are vertically fixed to the bottom end of the cross beam, the advancing wheels are installed at the bottom ends of the supporting legs, and through the design, the device can move front and back on an expressway without occupying too much lane space, pruning work can be completed without arranging a roadblock, integration of a hub motor enables the advancing wheels to have the self-walking function, and the practicability is high. Therefore, the trimming device can move autonomously without additional traction or pushing force, the self-walking function greatly improves the efficiency of trimming operation, reduces the labor intensity of workers, and enables the trimming operation to be more flexible and quicker.
Owner:宿州学院

Damp-heat-resistant insulating material, preparation method thereof and environment-friendly electric wire

The invention provides a damp-heat-resistant insulating material, a preparation method thereof and an environment-friendly electric wire, and the damp-heat-resistant insulating material is prepared from the following raw materials in parts by weight: 50-70 parts of EVA (Ethylene-Vinyl Acetate) resin; 10 to 30 parts of linear low density polyethylene; 10 to 20 parts of ethylene propylene diene monomer; 10 to 20 parts of a compatilizer; 152 to 208 parts of a modified flame retardant; 5-10 parts of an auxiliary agent; 5-8 parts of an anti-termite master batch; the modified flame retardant is a flame retardant treated by an amino silane coupling agent, a vinyl silane coupling agent and a polysiloxane coupling agent. The insulating material provided by the invention can resist the temperature of-40 DEG C to 105 DEG C, has excellent humidity and heat resistance and oxidation resistance, and also has the properties of flame retardance, fire resistance, termite resistance, ultraviolet resistance, environmental protection and the like.
Owner:JIANGSUSNGSHANG CABLE GROUP +1

Efficient flame-retardant artificial board, flame retardant and preparation method thereof

ActiveCN119570498AImprove the carbonization effectblock deliveryWood working apparatusDomestic articlesCelluloseCarbon layer
The invention discloses a high-efficiency flame-retardant artificial board, a flame retardant and a preparation method thereof. The flame retardant for the artificial board comprises a polyphosphate compound, ammonium borate, boric acid and delignified biomass cellulose in a mass ratio of 5: (3-5): (2-5): (2-4). According to the flame retardant, by means of the synergistic effect of the polyphosphate compound, ammonium borate and boric acid, the carbonization capacity of an artificial board under the high-temperature condition is remarkably enhanced, a compact carbon layer is formed, therefore, heat and oxygen transfer is effectively prevented, and the flame retardant effect is greatly improved. The oxygen index of the prepared environment-friendly efficient flame-retardant artificial board reaches 37% or above, toxic and harmful gas is not released in the combustion process, and the environment-friendly performance is good. The cellulose is used as a carrier of the flame retardant, and the oxidation resistance of the boric acid is combined, so that the mechanical property of the artificial board is improved, the thermal stability of the artificial board is improved, and the good balance of the flame retardant property and the mechanical property is realized.
Owner:ZHEJIANG FORESTRY UNIVERSITY

Method for extracting vanadium from vanadium slag through chlorination

PendingCN119614856AImprove chlorination efficiencyImprove utilizationProcess efficiency improvementSolid carbonSlag
The invention relates to the technical field of chemical metallurgy, and discloses a method for extracting vanadium from vanadium slag through chlorination, which comprises the following steps: S1, fully mixing vanadium slag and a solid carbonizer according to a certain proportion, adding water for wetting, and briquetting; s2, performing inert atmosphere carbonization roasting on the material obtained by briquetting in the step S1; s3, cooling the carbonized slag roasted in the step S2, and then crushing and screening; s4, carrying out chlorination reaction on the screened material obtained in S3; and S5, condensing and separating gaseous volatile components generated in the chlorination reaction in the step S4 to obtain a liquid mixture of vanadium tetrachloride and titanium tetrachloride and a solid mixture of manganese chloride and ferric chloride. According to the scheme, the chlorination efficiency of vanadium and titanium can be greatly improved, and comprehensive utilization of multi-metal resources in the vanadium slag is facilitated.
Owner:PANZHIHUA IRON & STEEL RES INST OF PANGANG GROUP

Multi-stage treatment method and system for lead smelting wastewater

InactiveCN121758007APrioritize separationCan cope with fluctuations in water qualityWater contaminantsWaste water treatment from metallurgical processLead smeltingElectrical battery
The invention relates to the technical field of wastewater treatment, in particular to a multi-stage treatment method and system for lead smelting wastewater. The method comprises the following steps: acquiring water quality data of the multi-source lead-acid storage battery smelting wastewater, and based on the water quality data, analyzing to obtain a battery wastewater multiphase feature set; on the basis, the information of the stabilized intermediate water body is obtained by dynamically adjusting the hydrogen ion concentration, breaking a complexing structure and preferentially separating fluoride; on the basis, the antimony valence state and the antimony concentration are monitored in real time, the oxidizing agent type and the reaction intensity are matched in a self-adaptive mode, oriented efficient conversion of antimony is achieved, and low-antimony pre-sedimentation water outlet information is obtained; on the basis, according to the dynamic proportion of the inlet water hydrogen ion concentration to the lead and antimony ions, a precipitation path control instruction is automatically switched, a purified water body with lead and antimony synchronously and deeply removed is obtained, and a lead smelting wastewater multi-stage treatment log is output. Harmful pollutants in the lead smelting wastewater process are efficiently removed, the method adapts to water quality fluctuation, consumption reduction and cost saving are achieved, compliance treatment of wastewater is achieved, and environment-friendly and economic values are achieved.
Owner:江西金德铅业股份有限公司

Integrated cooperative processing system and method based on multi-source waste

The invention belongs to the technical field of garbage treatment, and particularly relates to an integrated cooperative treatment system and method based on multi-source waste. Comprising a household garbage treatment unit, a medical garbage treatment unit and a mixing unit and is used for collecting and mixing household garbage, medical garbage and sludge carbon and conveying the mixture to an incineration unit; the sludge co-processing unit is used for drying and carbonizing the sludge to generate sludge carbon and pyrolysis gas; and the incineration unit is used for incinerating the conveyed multi-source waste mixture, the incineration unit is connected with a detection unit and a control unit, flue gas is monitored in real time, the temperature of the incineration unit is regulated and controlled, and the conveying rate and the matching relation of the household garbage and the medical garbage are controlled, so that the concentration of chlorobenzene generated by the incineration unit is regulated. Synergistic efficient incineration of the household garbage, the medical garbage and the sludge is achieved, generation of harmful substances such as dioxin is effectively reduced while the incineration efficiency is improved, and cooperative treatment of various wastes can be achieved when the same household garbage is incinerated.
Owner:XI AN JIAOTONG UNIV

Production method of steel bar for heavy-load automobile half shaft

The invention belongs to the technical field of bar production, and particularly relates to a production method of a steel bar for a heavy-load automobile half axle, and the steel bar comprises the following chemical components in percentage by mass: 0.39-0.42% of C, 0.25-0.35% of Si, 1.45-1.70% of Mn, less than or equal to 0.013% of P, less than or equal to 0.006% of S, less than or equal to 0.25% of Cr, less than or equal to 0.25% of Ni, 0.15-0.20% of Mo, 0.06-0.10% of V, less than or equal to 0.15% of Cu and the balance of Fe and inevitable impurities. The method has the advantages that high-performance, high-purity and low-cost production of the steel bar for the heavy-duty automobile half shaft is realized through green short-process production of'ecological electric furnace + LF + RH + continuous casting 'in combination with low-carbon component design and a controlled rolling and controlled cooling process. And macrostructures and non-metallic inclusions of the finished steel meet the requirements of high-end products.
Owner:BENGANG STEEL PLATES CO LTD

Production method of environment-friendly light calcium silicate board

The invention relates to the technical field of calcium silicate boards, and discloses a production method of an environment-friendly light calcium silicate board, the calcium silicate board comprises the following raw materials: fly ash, cement, slaked lime, a reinforcing component, an inorganic modified filler and water; wherein the reinforcing component is bamboo fiber of which the surface is grafted with 1-naphthol-3, 6-sodium disulfonate, and the breaking strength of the calcium silicate board can be effectively improved by utilizing the bamboo fiber and sulfonic acid groups in the reinforcing component; according to the inorganic modified filler, a polymer with a large amount of quaternary ammonium salt and carboxyl groups is inserted between layers of rectorite, so that the compactness of the calcium silicate board is enhanced, and the strength of the calcium silicate board is further improved. Through the synergistic effect of the raw materials, the strength of the calcium silicate board is remarkably improved, so that the service life of the calcium silicate board is prolonged, and the application effect of the calcium silicate board in various fields is effectively improved.
Owner:SHANDONG LIANYINSHAN ENVIRONMENTAL PROTECTION BUILDING MATERIALS CO LTD

Preparation method of fluorinion-induced manganese oxide composite material and application of fluorinion-induced manganese oxide composite material as positive electrode material in aqueous magnesium ion capacitor

The invention belongs to the technical field of materials, and relates to a preparation method of a fluorinion-induced manganese oxide composite material and application of the fluorinion-induced manganese oxide composite material as a positive electrode material in an aqueous magnesium ion capacitor. The preparation method comprises the following steps: firstly, preparing a MnO2 precursor from a positive electrode through a hydrothermal method, and annealing to obtain a pure-phase MnO2 nanoflower structure; the preparation method comprises the following steps: preparing MnO2 nanoflowers, adding the prepared MnO2 nanoflowers into polyethylene glycol, adding manganese chloride, potassium fluoride and polyvinylpyrrolidone, carrying out ultrasonic dispersion for 30 minutes, continuously stirring for 1 hour, and transferring the obtained mixed solution into a Teflon reaction kettle for hydrothermal reaction to obtain the MnO2 / Mn2O3 / KMnF3 composite material. The composite material is used as a positive electrode and activated carbon is used as a negative electrode to assemble a water-based magnesium ion capacitor device, and the water-based magnesium ion capacitor device can reach relatively high specific capacitance after an electrochemical test. According to the invention, a hydrothermal method is adopted for synthesis, the process is simple, the material cost is low, and the material is non-toxic and harmless, so that the capacitor has high practical application value and is expected to become a novel green energy storage device.
Owner:LIAONING UNIVERSITY

Heat transfer composition replacing R123 and application thereof

The invention discloses a heat transfer composition for replacing R123, the heat transfer composition comprises 30-98 wt% of Z-1-chloro-3, 3, 3-trifluoropropene, 1-65 wt% of Z-1, 3, 3, 3-tetrafluoropropene and 1-5 wt% of n-butane, the evaporation enthalpy of the heat transfer composition under standard atmospheric pressure is greater than 250 KJ / kg, and the average relative deviation AAD of saturated vapor pressure of the heat transfer composition at any temperature within 15-145 DEG C is less than 50%. The heat transfer composition has the advantages of being excellent in environmental performance, good in safety performance, high in unit volume heating / refrigerating capacity, high in latent heat of vaporization, good in heat transfer performance, large in expansion work and the like.
Owner:ZHEJIANG RES INST OF CHEM IND CO LTD +1

Polarizing beam splitter and preparation method and application thereof

The invention relates to the technical field of polarizing beam splitters, in particular to a polarizing beam splitter and a preparation method and application thereof. The polarizing beam splitter provided by the invention comprises a diamond substrate, a polarizing beam splitting film and a first metalized film layer which are positioned on the surface of one side of the diamond substrate, a broadband antireflection film positioned on the surface of the other side of the diamond substrate, and a second metalized film layer positioned on the side surface of the diamond substrate, the first metallized film layer is located at the edge position of the surface of one side of the diamond substrate. Diamond is adopted as a substrate material of the polarizing beam splitter, and the characteristic of high thermal conductivity of the diamond is utilized, so that heat generated when laser acts on a film layer and a substrate can be quickly conducted as soon as possible, and damage to the polarizing beam splitter caused by local temperature rise is relieved; the edge of the polarizing beam splitter is metalized, so that the beam splitter body and a metal tube shell or a water cooling structure can be integrally welded, and a high-reliability and low-leakage-rate vacuum sealing solution can be provided while the heat conduction efficiency is improved.
Owner:SHANGHAI INSTITUTE OF TECHNICAL PHYSICS CHINESE ACADEMY OF SCIENCES

Auricularia auricula polysaccharide / casein emulsion gel as well as preparation method and application thereof

The invention discloses black fungus polysaccharide / casein emulsion gel as well as a preparation method and application thereof. The preparation method comprises the following steps: 1) mixing an aqueous solution of auricularia auricula polysaccharide with an aqueous solution of casein to obtain a protein-polysaccharide compound solution; (2) a water phase is added into the oil phase and mixed, the water phase is the protein-polysaccharide compound solution, the obtained mixture is subjected to ultrasonic homogenization, and emulsion is obtained; and 3) adding gluconic acid-delta-lactone into the emulsion, mixing, and incubating to obtain the auricularia auricula polysaccharide / casein emulsion gel. The auricularia auricula polysaccharide / casein emulsion gel disclosed by the invention is applied to curcumin encapsulation. After the black fungus polysaccharide is added, the gel performance of the casein emulsion gel is obviously improved; after the auricularia auricula polysaccharide is added, the loading rate of the casein emulsion gel loaded with curcumin is obviously increased.
Owner:SHANXI AGRI UNIV

Rust transforming agent, green rust-free macromolecular anticorrosive paint and method

The invention belongs to the technical field of anticorrosive coatings for metal equipment, and discloses a rust transforming agent, a green rust-free macromolecular anticorrosive coating and a method. The rust remover comprises the following components in parts by weight: 5-15 parts of a rust conversion agent, 60-80 parts of a film-forming agent, 0.5-5 parts of a curing agent, 10-20 parts of a diluent, 1-5 parts of a defoaming agent and 0.005-0.05 part of a catalyst. According to the product, the site construction requirement is greatly reduced, the working efficiency is improved, and the cost is saved.
Owner:HUANENG COAL TECH RES CO LTD +2

Method for carrying out flame-retardant finishing on copper ammonia fabric by using barley bran extract

The invention provides a method for performing flame-retardant finishing on a copper ammonia fabric by using a barley bran extract, the flame-retardant finishing method is as follows: a core-shell structure flame retardant is loaded to the surface of the copper ammonia fabric through a padding process, the core-shell structure flame retardant takes polyguanidine and sodium alginate as a shell layer and takes the barley bran extract as a core layer, and the core layer is a shell layer; the polyguanidine and the sodium alginate are combined through self-assembly. The barley bran used in the invention is a by-product of barley processing, efficient utilization of resources is realized through processing of the barley bran, use of halogen in a traditional flame retardant is avoided, and the method has the characteristic of environmental friendliness.
Owner:WUJIANG DEYI FASHIONS CLOTHS +1

Large-span light energy driving type movable sunlight room

A large-span light energy driving type movable sunlight room comprises a sunlight room body, a photovoltaic panel assembly and a driving assembly, the photovoltaic panel assembly is installed at the roof of the sunlight room body, the driving assembly is installed at the bottom supporting position of the sunlight room body, and the photovoltaic panel assembly converts light energy into electric energy and then supplies the electric energy to the driving assembly for operation. Electric energy generated by the photovoltaic panel assembly is matched with a gear and toothed belt transmission system formed between the driving wheels and the driving belt to achieve automatic movement of the large-span sunlight room, and the problems that in traditional manual driving, the labor intensity is high, operation coordination is difficult, and positioning is inaccurate are effectively solved. The sliding blocks on the positioning blocks are matched with the guide strips to form a guide and support relationship, so that the moving resistance is obviously reduced, and the running stability is improved; and by arranging the photovoltaic panel assembly and the energy storage battery, green energy self-sufficiency is achieved, the requirements for environmental protection and multifunctional power supply are met, and the practicability and the intelligent level of the large-span sunlight room are overall improved.
Owner:广东省光禾悦智能科技有限公司

Green synthesis method and application of Pt monatomic catalyst

The invention discloses a green synthesis method and application of a Pt monatomic catalyst, and belongs to the technical field of heterogeneous catalysis. The preparation method provided by the invention comprises the following steps: mixing PtO2 nanoparticles and CeO2 nanoparticles, grinding and uniformly mixing, and carrying out high-temperature calcination to obtain the CeO2 carrier loaded Pt monatomic catalyst. In the preparation process, the use of any solvent and metal precursor salt anions is not involved, so that any wastewater and atmospheric pollutants are not generated in the calcination process; meanwhile, the Pt monatomic catalyst prepared by the method shows excellent catalytic activity in a methane dry reforming reaction; more importantly, the preparation method disclosed by the invention is green and simple, and has a wide industrial application prospect.
Owner:NANJING UNIV

Marble-imitated aluminum-plastic panel with high weather resistance

The utility model relates to the technical field of aluminum-plastic plates, and discloses a marble-imitated aluminum-plastic plate with high weather resistance, which comprises a lower aluminum plate, and is characterized in that the outer surface of the upper end of the lower aluminum plate is movably connected with an upper aluminum plate, the outer surface of the lower end of the upper aluminum plate is movably connected with a middle plastic plate, the outer surface of the front end of the lower aluminum plate is fixedly connected with a positioning block, and the positioning block is fixedly connected with the middle plastic plate. When the aluminum-plastic panel is used, the weather resistance of the aluminum-plastic panel can be improved through the arranged upper aluminum plate, meanwhile, the rigidity of the aluminum-plastic panel can be enhanced, the aluminum-plastic panel is environmentally friendly, and therefore the problem that the aluminum-plastic panel is prone to aging and cracking under the influence of the external environment is solved, the service life of the aluminum-plastic panel is prolonged, and the service life of the aluminum-plastic panel is prolonged. And through the multi-layer design, the elastic limitation of the aluminum-plastic panel can be improved, the flatness of the aluminum-plastic panel is guaranteed, the situation that the aluminum-plastic panel deforms is avoided, the durability of the aluminum-plastic panel is further improved, the service life of the aluminum-plastic panel is further prolonged, and the use cost is saved.
Owner:ZHEJIANG JINXIANG PANEL IND CO LTD

A method for conditioning and modifying a steelmaking hot desulfurization slag

The application discloses a method for modifying and adjusting hot-state desulfurization slag of steelmaking, which comprises the following steps: mixing hot-state molten desulfurization slag and casting residue or mixed liquid casting residue in a hot-state adjusting and conditioning pool, and changing the caking and difficult-to-handle characteristics of the molten desulfurization slag into easy-to-handle modified slag for subsequent disposal. The application solves the technical problem of large lumps of slag and iron in existing steel enterprises, and has strong operability and no safety problem.
Owner:BAOSHAN IRON & STEEL CO LTD +1

A prefabricated V-shaped rigid frame bridge and its construction method

This invention discloses a prefabricated V-shaped rigid frame bridge and its construction method. The prefabricated V-shaped rigid frame bridge includes: pier foundations, at least two V-legs, and a main girder. The V-legs are composed of multiple prefabricated segments stacked together, with the bottom fixed to the pier foundation via a post-cast section and the top having a cast-in-place section. The main girder includes a No. 0 segment beam and multiple symmetrically arranged prefabricated segments. The prefabricated segments of the main girder are constructed using the inverted beam method, i.e., the top slab, then the web, and finally the bottom slab are prefabricated in sequence. The cast-in-place section of the No. 0 segment beam is integrally cast with the top cast-in-place section of the V-legs. This invention achieves rapid and standardized prefabrication and assembly of variable cross-section beams and V-legs through prefabrication and inverted beam method templates, shortening the construction cycle, reducing the risks of high-altitude operations and traffic interference, improving quality and durability, and possessing economic and environmental advantages.
Owner:NANCHANG RAILWAY KANCE DESIGN YUAN CO LTD +1

A dry process for acid production from viscose fibre plant off-gas

The present application relates to a kind of dry method for viscose fiber factory waste gas recovery, including the following sequentially performed steps: (1) waste gas incineration;(2) purification;(3) deacidification mist;(4) drying;(5) sulfur combustion;(6) high temperature furnace gas B is imported into the acid making device to obtain finished product concentrated sulfuric acid.The present application overcomes the shortcomings of existing viscose factory waste gas acid making process equipment, such as easy to be corroded, frequent shutdown, difficult to maintain, low acid production, easy to escape sulfur waste gas, easy to mix furnace gas and external air, low economic benefit, complex process, and many by-products, etc.By adding liquid sulfur mixed combustion, controlling the temperature of each step, setting a booster fan in the front section of the drying tower, a main fan in the rear section, and reasonably arranging the inlet positions of furnace gas and external air, the present application has the advantages of simple process, large-scale acid production, no sulfur waste gas escaping, more environmentally friendly, no mixing of furnace gas and external air, high economic benefit, few by-products, and low maintenance cost.
Owner:SATERI (FUJIAN) FIBER CO LTD

Photovoltaic and energy storage collaborative regulation and management platform and control method

PendingCN122371325AImprove consumption efficiencyReal-time optimization of control parametersData setNew energy
This invention discloses a photovoltaic (PV) and energy storage collaborative regulation and management platform and control method, belonging to the field of shipboard new energy storage regulation. It aims to solve the problems of poor adaptability, insufficient safety protection, and lagging regulation in shipboard PV-storage systems. The platform includes a shipboard PV-storage regulation parameter acquisition module, a PV-storage-fuel power collaborative scheduling module, and a marine environment early warning and regulation module. It collects multi-source data and associates it with spatiotemporal tags to construct a dataset and calculate core regulation parameters, predicting PV output trends. It quantifies marine environmental stress factors, couples equipment parameters to analyze failure probabilities, and provides graded early warnings. It executes a three-level scheduling based on "PV priority consumption – energy storage supplementation – fuel oil backup," linking risk levels to dynamically optimize strategies. This invention achieves precise matching of energy supply and demand, reduces the risk of equipment failure caused by the marine environment, ensures continuous power supply to core loads, improves PV consumption efficiency and system stability, and balances environmental protection and operational economy, making it suitable for various shipboard new energy power supply scenarios.
Owner:JILIN INST OF ARCHITECTURE & TECH

Preparation method of intermediate of macloxvir

The invention discloses a preparation method of an intermediate of macloxvir. The preparation method comprises the following steps: step 1, carrying out halogenation reaction; step 2, elimination reaction; step 3, addition reaction; step 4, ring closing reaction; the starting raw materials, the solvent and the catalyst selected in the invention are industrial-grade cheap and easily available products, have the advantage of low production raw material cost, and provide economic feasibility support for industrial large-scale production; reaction conditions of each step in the reaction process are mild, byproducts are few, the yield is high, and a target product can be prepared more efficiently; meanwhile, the synthesis route is high in atom utilization rate and excellent in atom economy, the used solvent and reagent are high in stability and easy to recycle and reuse, generation and emission of industrial three wastes are greatly reduced, the environment-friendly treatment cost is reduced, and the concept of green chemistry and sustainable development is met; the method gives consideration to economy, high efficiency and environmental friendliness, and solves the problems of low yield, violent reaction conditions and high cost of raw materials and auxiliary materials in the existing method.
Owner:SHANGHAI WOYING BIOTECHNOLOGY CO LTD

Green and efficient regeneration method of activated carbon in brine acidification-activated carbon adsorption deodorization process

The application discloses a green and efficient regeneration method of activated carbon in a brine acidification-activated carbon adsorption deodorization process, and is characterized by comprising the following steps: S1, water washing and salt removal through aeration; S2, ozone oxidation regeneration: adding an alkali liquor with the same volume as the activated carbon into an activated carbon adsorption tower, and then blowing ozone into the bottom of the activated carbon adsorption tower, so that the ozone is subjected to oxidation reaction with the activated carbon under the alkaline condition, and then waste alkali liquor is discharged; S3, water washing and alkali removal through aeration; S4, waste liquid reuse; and S5, waste material reuse. The application can not only avoid the loss of activated carbon caused by high-temperature burning, but also has short regeneration time of the activated carbon and no harmful substance residue, and is very suitable for the regeneration of the activated carbon in the acidification brine activated carbon adsorption deodorization process. In addition, the waste liquid and the waste material in the regeneration process of the activated carbon can be reused, the whole process is free of toxic and harmful waste emission, is green and environment-friendly, has low treatment cost, high efficiency, good economy, environmental protection and feasibility.
Owner:SNOWSKY SALT IND GRP CO LTD

A cooling tower

ActiveCN224479916UReduce replacement timeReduce cleanup timeCooling towerTower
The utility model relates to cooling equipment technical field discloses a cooling tower, including base, the upper surface fixed connection of base has support frame, the upper surface fixed connection of support frame has tower body, the outer wall fixed connection of tower body has the fairing, the inside fixed connection of fairing has the fan, the inside fixed connection of tower body has annular pipe, the inside fixed connection of annular pipe has the limit cylinder, the inside sliding connection of limit cylinder has the clamping block, the outer wall fixed connection of clamping block has first telescopic link, the outer wall sliding connection of first telescopic link has first spring. In the utility model, through adopting elastic buckle structure, through the mutual cooperation between clamping block, first spring and limit cylinder, through simple pulling, the spray head can be separated from annular pipe, only needs to be inserted during installation to be automatic locking, need not the tool auxiliary, significantly shorten the spray head replacement or cleaning time, avoid the cooling efficiency decline caused by the spray head blockage, guarantee equipment continuous stable operation.
Owner:WENZHOU HELI LEATHER IND CO LTD

Concave-convex splicing assembly type wall

ActiveCN224106648USolve the leakImplement splicing functionWallsAcute angleClassical mechanics
The utility model relates to a concave-convex splicing assembly type wall body, the wall body comprises daughter boards (1) and corner splicing pieces (2), the two opposite sides of each daughter board (1) are respectively provided with a splicing clamping opening (1-1) and a splicing clamping groove (1-2) which are used for splicing, and the adjacent daughter boards (1) can be spliced in a plane mode through the splicing clamping openings (1-1) and the splicing clamping grooves (1-2); the corner splicing pieces (2) comprise right-angle bending splicing pieces (2-1), acute-angle bending splicing pieces (2-2) and obtuse-angle bending splicing pieces (2-3) which are used for right-angle corner splicing, acute-angle corner splicing and obtuse-angle corner splicing of the adjacent daughter boards (1); the daughter board (1) is provided with preformed holes (1-3) used for being matched with self-tapping screws to achieve fixation. Compared with the prior art, the sound insulation wall has the advantages that the problem of sound leakage generally existing at the splicing position of a traditional assembly type wall can be effectively solved, the sound insulation amount of the splicing position is equivalent to that of the wall, adjustment can be carried out according to the design requirements of close splicing or masking seams, and the sound insulation wall has the attractive effect and flexible design.
Owner:SHANGHAI YUNJIN INTELLIGENT CONSTR TECH CO LTD +1