27results about How to "Reduce environmental costs" patented technology

The invention discloses a method for preparing nitro-mesitylene through a micro-channel nitration reaction. The method comprises the following steps: respectively conveying mesitylene, fuming nitric acid and sulfuric acid to a micro-channel reaction module through a metering pump, and completing nitration reaction within a retention time of tens of seconds to several minutes. The introduction sequence of nitration reaction materials, the reaction retention time and the reaction temperature are cooperatively controlled, the nitration reaction is completed in the microchannel reactor in a continuous flow mode, operation is easy and convenient, safety is high, efficient continuous production can be achieved, meanwhile, emission of three wastes is reduced, and the industrial application advantages of being environmentally friendly and economical are achieved.

The application discloses a virtual power plant source-load collaborative optimization scheduling method and device, system and storage medium, which comprises the following steps: step 1, establishing a model of each device component in a virtual power plant system; step 2, constructing a virtual power plant system operation constraint condition; step 3, determining economic cost and environmental cost minimization as a multi-objective function of the virtual power plant system according to the device component model and the virtual power plant system operation constraint condition; and step 4, generating an optimal scheduling scheme considering economy and environment by optimizing and scheduling a virtual power plant internal source-load bilateral coordination relationship according to the multi-objective function of the virtual power plant system by using an MOPKO algorithm. The technical scheme of the application is used for scheduling and optimizing distributed resources of a power generation side and a power consumption side in the virtual power plant, so that the system economic cost and the system environmental cost are reduced.

The application provides a combined cooling heating and power micro-grid system operation optimization method, first, an optimization objective function and constraint condition of the combined cooling heating and power micro-grid system operation are constructed, thereby a combined cooling heating and power micro-grid system multi-objective optimization model is established; then a target function of the combined cooling heating and power micro-grid system is determined, thereby the cost is reduced and the economic benefit is improved; secondly, an improved chameleon swarm algorithm is introduced in the traditional method in the combined cooling heating and power micro-grid system operation strategy to realize energy optimization management of the combined cooling heating and power micro-grid system, thereby problems such as population diversity attenuation and falling into a local optimal solution of the swarm intelligence optimization algorithm in the chameleon swarm algorithm are avoided; finally, a hybrid following heat load strategy operation strategy is provided, and the operation cost of the combined cooling heating and power micro-grid system is more effectively reduced. The application has the beneficial effects that the renewable energy is utilized, the stable operation of the power grid is maintained, and the operation cost of the combined cooling heating and power micro-grid system is effectively reduced.

The present application relates to the field of metal processing cooling liquid, especially to a special drawing cooling liquid for aluminum pop can production and a preparation method thereof.The special drawing cooling liquid for aluminum pop can production comprises, in mass percentage, 5-25% of carbon material reinforcing liquid, 5-15% of surfactant, 5-15% of functional additive, 1-5% of antibacterial agent, 5-10% of complexing agent, 1-5% of oil control agent, 0.1-5% of pH regulator, 0.01-0.1% of defoaming agent, and the rest of deionized water.The processing cooling liquid provided in the present application can be used as a special drawing cooling liquid for the drawing and thinning process of aluminum pop can, and can play excellent drawing cooling, lubrication and rust prevention functions simultaneously.

The application provides a carbon nanofiber material and a preparation method thereof. The preparation method of the carbon nanofiber material comprises the following steps: placing a carbonized material to be carbonized at the bottom of a crucible; placing the crucible in a carbonization device for carbonization treatment, so that the carbonized material to be carbonized is carbonized and carbon source gas is discharged, so that the carbon source gas reacts to generate the carbon nanofiber material under the action of high temperature and a catalyst; and the catalyst is arranged on the surface, the inside of the carbonized material to be carbonized, or the inner wall of the crucible, or a carrier located above the carbonized material to be carbonized. The application can reduce environmental protection cost and has economic and environmental benefits.

The application provides a preparation method of graphite oxide, comprising the following steps: uniformly mixing graphite powder and concentrated sulfuric acid in a reaction kettle; adding an oxidizing agent in the reaction kettle, performing intercalation and first-stage oxidation reaction under heating to obtain a first mixture with a viscosity of 200 cP-1000 cP and graphite powder not being completely oxidized; separating the first mixture to recover concentrated sulfuric acid and obtain a second mixture; standing the second mixture to perform second-stage oxidation reaction until the graphite powder is completely oxidized; dispersing the second mixture in water, heating and keeping for a certain time, and then adding hydrogen peroxide after cooling to obtain graphite oxide. The preparation method of the application can realize high recovery rate of concentrated sulfuric acid and also ensure complete oxidation of graphite. In addition, the recovered concentrated sulfuric acid can also be used in the preparation of new round of graphite oxide, so that the purpose of recycling is achieved, and the raw material cost of preparing graphite oxide is greatly reduced.

This invention provides a process for the recycling and treatment of high-salinity wastewater, relating to the field of wastewater treatment technology. The process includes: Step 1: Analyzing the organic composition of various high-salinity wastewaters to determine the composition and content of materials; Step 2: Developing corresponding treatment plans for the specific components of each high-salinity wastewater; Step 3: Treating the high-salinity wastewater according to the treatment plan, and adjusting and optimizing the plan to remove organic matter and reduce the color of the high-salinity wastewater; Step 4: Evaporating the treated wastewater to precipitate salt, preparing qualified by-product salt or by-product sodium sulfite. Compared to traditional methods of removing organic matter from wastewater such as Fenton oxidation and biochemical processes, this invention is cleaner, more environmentally friendly, and more effective, significantly reducing the treatment cost of high-salinity wastewater.

The application discloses a method for preparing vinylene carbonate by recycling ethylene dicarbonochloride. The method comprises the following steps: (1) mixing activated carbon@zinc powder, organic solvent and polymerization inhibitor uniformly, then starting stirring and carrying out nitrogen replacement; (2) adding ethylene dicarbonochloride with a concentration of 37wt% dropwise at a certain temperature, and carrying out reaction under insulation; (3) after the reaction is completed, solid-liquid separation and washing are carried out, the washing liquid and the filtrate are combined, and vinylene carbonate is obtained through pressure reduction desolventization. The activated carbon@zinc powder is gaseous zinc element generated after zinc chloride obtained through filtration after the reaction is completed is introduced into activated carbon particles through a series of reactions. The application effectively utilizes ethylene dicarbonochloride, reduces environmental pollution, improves the yield of vinylene carbonate by using activated carbon@zinc powder, realizes cyclic utilization of by-products in the preparation of vinylene carbonate, and reduces production cost.

The invention relates to a treatment method for preventing acid corrosion of a stainless steel product, which comprises the following steps: pretreatment: pretreating the surface of the stainless steel product to clean the surface and enable the surface to obtain a mirror surface effect meeting requirements; ozone treatment, wherein the pretreated stainless steel product is placed in an ozone device to be subjected to ozone treatment through ozone gas or an ozone water solution, so that a layer of chromium oxide protection film is formed on the surface of the stainless steel product; and post-treatment is conducted, specifically, the stainless steel product subjected to ozone treatment is washed with ultrasonic pure water, and then the stainless steel product is placed in a high-temperature nitrogen environment to be dried. A compact chromium oxide protective film is formed on the surface of the stainless steel treated by the treatment method, so that the acid resistance of the stainless steel is greatly improved.

The utility model discloses a precious metal recovery device for wafer wet etching wastewater, which comprises an electroplating deposition tank comprising an anode and a cathode, the cathode is connected with a stainless steel plate for depositing metal ions, the anode is connected with a wafer to be etched and dissolved, and a liquid supplementing pipe is communicated to the electroplating deposition tank; the conveying line is used for conveying the metal material deposited on the stainless steel plate, and a heating device used for drying the metal material is arranged on the conveying line; the electrolytic refining tank is arranged at one end of the conveying line; the rinsing tank is arranged on one side of the electrolytic refining tank; and the high-temperature refining furnace is arranged on one side of the rinsing bath. Compared with the prior art, the utility model solves the problem of high treatment cost of wafer electroplating wastewater and wet etching wastewater.

The application belongs to the technical field of alkali-free glass fiber, and particularly relates to a modified low-boron and low-fluorine alkali-free glass fiber composition and a preparation method thereof. The modified low-boron and low-fluorine alkali-free glass fiber composition comprises the following components: SiO2, Al2O3, B2O3, CaO, MgO, Fe2O3, TiO2, F2, R2O, X2O3, Li2O and ZnO, wherein R2O is a mixture of K2O and Na2O, and X2O3 is a mixture of La2O3 and Y2O3. The application provides the modified low-boron and low-fluorine alkali-free glass fiber composition and the preparation method thereof. Through the introduction of rare earth elements and the synergistic effect of Li2O and B2O3 components, the problems of high viscosity, high crystallization risk and narrow temperature window of the existing low-boron and low-fluorine glass fiber are effectively solved while the content of boron and fluorine is greatly reduced, and the elastic modulus, breaking strength and water resistance of the glass fiber are significantly improved.

This invention relates to a dynamic optimization decision-making model for the mining sequence of polymetallic symbiotic ore bodies, comprising an edge layer, a cloud platform, and a control terminal. The edge layer, cloud platform, and control terminal interact through dedicated interfaces, achieving a closed-loop process from data acquisition, processing, decision-making, to execution. The edge layer acquires ore body data in real time via a multi-source sensor network, preprocesses it through an edge computing terminal, and then uploads it to the cloud platform. The cloud platform uses a dynamic geological model engine to construct a real-time 3D ore body model and generates a Pareto optimal mining scheme that comprehensively considers economic, environmental, and safety factors through a multi-objective optimization engine. The control terminal uses a digital twin console to visualize the scheme and allow for manual intervention, while the equipment control system automatically executes mining commands. The model supports hourly dynamic updates, significantly improving resource recovery rate and decision-making efficiency, reducing environmental costs and mining risks, and achieving efficient, intelligent, and green mining of polymetallic symbiotic ore bodies.

This utility model discloses a pre-cleaning device for pump casing surface treatment with a water-saving mechanism, including a cleaning chamber, a main pipe, a high-pressure hose, a high-pressure nozzle, a first water pipe, a second water pipe, a water supply pump, a spray chamber, a first drive motor, and a first fan. The main pipe is arranged on the upper surface of the cleaning chamber, and a water supply pipe is arranged on one side of the outer surface of the main pipe. A branch pipe is arranged at one end of the water supply pipe, and the first water pipe and the second water pipe are respectively arranged at one end of the branch pipe. One end of the second water pipe is connected to the water supply pump. High-pressure hoses are arranged on both sides of the main pipe. This utility model adopts a modular design. This pre-cleaning device for pump casing surface treatment with a water-saving mechanism, through innovative structure, magnetic adsorption, graded filtration and water return structure work together to build a high-efficiency composite filtration system, reduce the damage of impurities to the pump casing and equipment, improve the recycling rate of cleaning fluid, and reduce operating and environmental protection costs.

This invention discloses a flanged composite material air intake duct molding fixture, relating to the field of air intake duct molding fixture technology. It includes a core module, which forms the inner molding surface of the air intake duct component. The core module has a relatively upper first end face and a relatively lower second end face along its length, and includes several outer core molds. By redesigning the air intake duct molding fixture, a hard, non-soluble structure can be used as the core mold for the air intake duct component. Furthermore, after molding, it can be removed from the complex molding surface within the air intake duct component. This process avoids chemical pollution and the waiting period for the core mold to dissolve. Therefore, compared to traditional air intake duct component molding methods, the demolding speed is faster after molding, reducing environmental costs and avoiding potential chemical pollution problems. Moreover, during the molding of the composite material, the core mold will not react with the composite material at high temperatures.

This application provides an emulsion treatment system and production line, relating to the field of process technology. Specifically, the system includes: a tank containing initial waste emulsion to be treated; a magnetization subsystem for magnetizing the initial waste emulsion to obtain a target waste emulsion containing waste residue; a storage liquefaction tank for storing the target waste emulsion; and a processor communicatively connected to the magnetization subsystem for controlling the magnetization subsystem to perform the magnetization treatment and controlling the magnetization subsystem to transport the target waste emulsion to the storage liquefaction tank.

The utility model discloses a kind of spiral stirring paddle structures of regenerative rubber oxidation-resistant dynamic mixing, including fixing frame, obliquely arranged main shaft, paddle, lifting cylinder and stirring motor;Lifting cylinder is rotatably installed on the upper end of main shaft, and stirring motor is built-in, connected with the top end of main shaft by first universal joint, and paddle is rotated and stirred in two directions by motor power through multi-stage gear transmission;Paddle can be lifted below fixing frame by hydraulic cylinder, and lifting is stable by guide cylinder and guide rod;The structure is mixed more evenly by oblique main shaft and special paddle design;Multi-stage gear transmission is matched with motor speed control, and the demand of different mixing stages is satisfied;Paddle lifting design operation is flexible;Universal joint and stable support prolong the service life of equipment;Overall improve stirring effect and equipment performance, reduce raw material waste and pollutant generation, reduce environmental protection cost, enhance enterprise market competitiveness.

The invention discloses a method for producing bacterial cellulose through fermentation of tail water of high-chemical-oxygen-demand food and application of the method, and relates to the field of bacterial cellulose production.According to the method for producing the bacterial cellulose through fermentation of the tail water of the high-chemical-oxygen-demand food and the application of the method, the tail water of the high-chemical-oxygen-demand food such as bean products and dairy products is directly used as a fermentation substrate; only a small amount of cheap nutrient supplements (such as glucose and yeast extracts) need to be supplemented, and the raw material cost is reduced by 50% or above. Meanwhile, in the fermentation process, organic matters in tail water are completely degraded by bacteria, the removal rate of chemical oxygen demand reaches 85-92%, high-energy-consumption treatment such as a traditional activated sludge method is not needed, and the production period is shortened by 20-40%. According to the technology, the problem of tail water pollution is solved, the tail water pollution is converted into a high-added-value product, a resource-product-renewable resource circular economy mode is formed, and the environmental protection cost of enterprises is remarkably reduced.

The invention relates to the technical field of high polymer materials, and discloses a water-based hybrid emulsion with high solid content, low gloss and high wear resistance and a preparation method thereof.The water-based hybrid emulsion is prepared from 12 kinds of components including composite isocyanate, composite polyol, composite acrylate monomers and the like. A three-in-one system of an interpenetrating network, a core-shell structure and multiple cross-linking is constructed through precise compounding, the synergism of 55-60% high solid content, 5-8 GU low gloss and high wear resistance is realized, the weather resistance of the product reaches 800 h without yellowing, the product is stable after being stored for 12 months, the product is environment-friendly and solvent-free, and the product can be widely applied to multiple scenes such as coatings, adhesives, leather finishing and the like and has wide application prospects. The problems that an existing water-based hybrid emulsion is single in structure, short in performance, high in solid content and difficult to be compatible with a complex structure are solved.

The invention relates to an energy-saving process for synergistically recycling hydrogen peroxide and dilute sulphuric acid in acid-making tail gas desulfurization, which comprises the following steps: S1, tail gas desulfurization reaction: introducing tail gas discharged from a final absorption tower of an acid-making system into a tail gas desulfurization tower, and spraying a hydrogen peroxide solution from the upper part of the desulfurization tower to generate dilute sulphuric acid with the volume concentration of 20-25%; s2, graded collection of dilute sulphuric acid: when the volume concentration reaches 22%-25%, conveying the dilute sulphuric acid to a dilute acid storage tank by a dilute acid pump; when the volume concentration is lower than 22%, returning to the desulfurization tower for continuous recycling; s3, recycling and distributing dilute sulfuric acid: recycling the dilute sulfuric acid in a dilute acid storage tank in two paths: (1) conveying the dilute sulfuric acid with the volume ratio of 80-85% to an acid-making dry absorption process to prepare finished acid with the volume concentration of 93% or 98%; (2) conveying dilute sulphuric acid with the volume ratio of 15-20% to a purification process; s4, hydrogen peroxide is dynamically supplemented, and it is ensured that the residual concentration of hydrogen peroxide in dilute sulfuric acid is maintained to be 0.1%-0.5%. Accurate consumption control of hydrogen peroxide and resource recycling of dilute sulphuric acid can be realized.

The application discloses a treatment method for Cyanex272 raffinate in manganese sulfate production, sodium fluoride in the prior art is replaced by sodium phosphate to precipitate calcium ions, no hazardous waste is generated in the treatment process, and since the treatment of the Cyanex272 raffinate itself needs to remove phosphorus, no pollutants are additionally introduced, the safety of the treatment process is improved, and the environmental protection cost is effectively reduced. In addition to removing calcium by using phosphoric acid, the method also limits specific process parameters such as pH, reaction time and reaction temperature of processes such as manganese precipitation, calcium precipitation, phosphorus removal and evaporation crystallization, provides an optimal treatment scheme for the Cyanex272 raffinate, ensures the final treatment effect, so that the content of impurities such as manganese and phosphorus in the obtained solution is not more than 1 mg / L, and the content of calcium is not more than 201 mg / L, the treatment requirements of the Cyanex272 raffinate are met, meanwhile, the purity of the evaporation crystallization product, industrial sodium sulfate, can reach the standard of external sales, the value of the byproduct is improved, and the production cost is reduced.

This invention discloses a UV-curable solvent-free hot-press adhesive and its preparation method, belonging to the field of polymer materials. The UV-curable solvent-free hot-press adhesive contains 9 components by weight, including 5-10 parts of liquid polybutadiene and 10-20 parts of polyurethane acrylate oligomer. In the preparation process, some raw materials are first mixed, ester-soluble TPU is added for dissolution, a photoinitiator is added in the dark, and end-capping isocyanate is added after cooling. The application requires three steps: coating, UV curing (wavelength 365-405nm, light intensity 150mJ / cm²), and hot-pressing (120-140℃). Compared with traditional hot-press adhesives, it has no VOC emissions, high production efficiency, low energy consumption, and excellent adhesion performance (peel force 17.3-33.5N / 25mm).

This invention relates to the field of centrifuge technology, and more particularly to a modular, quick-install centrifuge sealing system. The system uses a data acquisition module to collect characteristic data parameters of the target centrifuge's sealing mechanism, as well as environmental characteristic parameters of the target centrifuge. The sealing mechanism components maintain internal pressure stability and prevent media leakage within the centrifuge. An analysis module analyzes characteristic data parameters and environmental characteristic parameters to determine their values. A control module compares these characteristic data values ​​with a predetermined characteristic data threshold to determine whether the centrifuge seal stability meets standards, determines the adjustment range of the characteristic data threshold, and issues an alarm to replace the pressure sensor. This invention improves the accuracy of the centrifuge sealing system by determining whether the centrifuge seal stability meets standards using characteristic data values.

The utility model relates to corrugated board spraying and humidifying equipment, and relates to the technical field of paperboards, the corrugated board spraying and humidifying equipment comprises a main body, the top of the main body is fixedly connected with a shell, the top of the shell is fixedly connected with an anti-bending mechanism, the interior of the shell is fixedly connected with a water spraying mechanism, and the outer side of the main body is fixedly connected with a butt joint mechanism; a recycling mechanism is fixedly connected to the interior of the main body, the butt joint mechanism comprises a fixing column, the outer side of the fixing column is fixedly connected to the interior of the main body, a plurality of limiting blocks are fixedly connected to the outer side of the fixing column, and a connecting column is slidably connected to the outer side of the fixing column. The corrugated board spraying and humidifying equipment has the advantages that the rapid sealing and butt joint effect is achieved, the efficient, sealing, stable and convenient effects are achieved in water supplementing of the corrugated board spraying and humidifying equipment, the maintenance cost is reduced while the production efficiency and the equipment reliability are improved, and the industrial water saving and intelligent upgrading innovative design effects are achieved.

The invention discloses a heat recovery coke oven and a preparation method of low-nitrogen foundry coke, and belongs to the technical field of coking chemical industry. The heat recovery coke oven comprises a carbonization chamber, a flue system and a suction and mixing system, a suction facility outlet is connected with a mixer inlet, another inlet of the mixer is connected with a primary air pipeline, and a mixer outlet is communicated with a top air distribution port of the carbonization chamber through a pipeline; the low-nitrogen foundry coke is prepared by adopting the heat recovery coke oven to form flue gas circulation, and meanwhile, the contents of CaO, MgO and Fe2O3 in coking as-fired coal as well as the coking temperature and time are controlled; according to the invention, the low-cost preparation of the low-nitrogen coke with the nitrogen content of less than 0.5% can be realized, and the problem that the low-nitrogen content control of the foundry coke and the controllable process transformation cost cannot be realized synergistically is solved.

The application discloses a tapping equipment for preventing loose spring nut production and machining, and belongs to the technical field of machining, which comprises a rack, the rack is provided with a mounting seat, the mounting seat is provided with a fixing table, a tapping piece lifting device is arranged on the rack, a flexible centering fixing piece is arranged on the fixing table, the flexible centering fixing piece is provided with a material leakage gap, the material leakage gap is used for discharging chips, a high-pressure flushing piece is arranged on the tapping piece, the high-pressure flushing piece is provided with a plurality of nozzles, the nozzles are directed to the flexible centering fixing piece, and a cutting fluid recovery tank is arranged on one side of the rack and is used for recovering cleaning liquid sprayed by the high-pressure flushing piece and recycling the cleaning liquid after filtration. The tapping equipment for preventing loose spring nut production and machining solves the technical problem of loose nut clamping during tapping in the process of preventing loose spring nut machining.

This invention belongs to the field of industrial solid waste resource utilization technology, and relates to a method for enriching titanium dioxide in high-titanium blast furnace slag, comprising: Step S10: crushing and pretreating the high-titanium blast furnace slag to obtain fine blast furnace slag powder; Step S20: mixing the fine blast furnace slag powder with an acid solution and carrying out an acid leaching reaction to obtain a reaction slurry; Step S30: adding an alkaline substance to the reaction slurry to adjust the pH value of the slurry to 6-8, converting the silica colloids in the slurry into amorphous silica particles, completing the colloidal regulation; Step S40: performing flotation to remove impurities from the colloidal regulated slurry, removing calcium sulfate; Step S50: filtering and washing the flotation slurry to remove soluble impurities, obtaining filter residue; Step S60: drying the filter residue to obtain a product rich in titanium dioxide. This method overcomes the defects of existing dilute sulfuric acid leaching methods for enriching titanium dioxide in high-titanium blast furnace slag, such as silica colloid interference, difficult filtration, and low enrichment efficiency.

This invention discloses an alkali-modified bimetallic oxide catalyst, its preparation method, and its application in the hydrolysis of organic sulfur, belonging to the field of gaseous sulfide removal technology. This invention first involves Al... 2 O 3 and TiO 2 Grind into powder and mechanically mix evenly in proportion, then impregnate Al with alkali metal salt solution. 2 O 3 and TiO 2 The catalyst is obtained by ultrasonic homogenization and drying of a mixed powder followed by calcination in air. The preparation method of this invention is simple, eliminates the need for washing and wastewater generation, and significantly reduces environmental and production costs; TiO₂ 2 With Al 2 O 3 Mechanical mixing does not damage Al 2 O 3 The porous structure and surface hydroxyl groups of TiO2 2 The introduction of [a specific ingredient] can also improve the catalyst's resistance to poisoning. The catalyst of this invention [is effective] in COS and CS [context missing]. 2 It exhibits excellent catalytic activity and good stability in hydrolysis reactions, and is effective even in the presence of water vapor and O2. 2 and CO 2 It still exhibits high hydrolysis activity under operating conditions with impurity gases, and its desulfurization performance is higher than that of similar catalysts, with broad prospects for industrial application.