385 results about "Post treatment" patented technology

The invention belongs to the technical field of nickel electrode slurry preparation, discloses a preparation process of ultra-fine particle size roll-printed nickel electrode slurry for an ultra-high capacity MLCC, and aims to solve the problems that in the prior art, ultra-fine nickel powder is easy to oxidize, the cost of covering nickel nitride powder is high, a covering layer is easy to damage and agglomerate during dispersion, and the performance of the slurry is poor. The method comprises three steps of raw material pretreatment, synchronization of material dispersion and nitridation, post-treatment and nitrogen protection, wherein the pretreatment is used for removing impurities and preventing oxidation, dispersion and nitridation are carried out synergistically through a sand mill and an ultrahigh-pressure homogenizer in a graded regulation and control mode, the post-treatment comprises filtering, inspection and double-layer vacuum packaging, the raw materials are prepared according to a specific proportion, key parameters are precisely regulated and controlled, and finally the slurry is prepared. Roll printing adaptability and co-firing requirements are met, independent nitridation and reduction procedures are omitted, cost is reduced, slurry uniformity, dispersion stability and MLCC reliability are improved, and large-scale mass production can be achieved.

The invention discloses a vacuum negative pressure vibration assisted precision casting forming method. The method comprises the steps of model preparation, sand box and dry sand pretreatment, layered vibration sand filling, film covering vacuumizing, molten metal smelting and purification treatment, negative pressure vibration pouring, pressure maintaining solidification, segmented temperature control and pressure relief box opening and multi-stage cleaning aftertreatment. The core of the method is that mechanical vibration and a vacuum negative pressure technology are deeply coordinated and penetrate through the whole process of modeling, pouring and solidification, and meanwhile, a series of fine control means such as dry sand accurate pretreatment, molten metal rotary blowing degassing and instantaneous inoculation, stepped negative pressure control, temperature-related segmented pressure relief and two-stage shot blasting cleaning are matched; through dynamic cooperation of vibration and negative pressure, the sand mold compaction uniformity, the molten metal mold filling capacity and the solidification feeding effect are remarkably improved, the casting defects of air holes, shrinkage porosity, insufficient pouring and the like are effectively reduced, and the internal density, the size precision and the surface quality of a casting can be remarkably improved.

The invention relates to the technical field of plastic molding and treatment, and discloses a molding processing and post-treatment process of low-odor plastic, which comprises the following steps: extruding a plastic melt containing volatile components into a to-be-cut material strip, pelletizing in a pelletizing area by using a pelletizing device, and synchronously adjusting the pulse spraying frequency to adapt to the pelletizing frequency, an alternating stress field is induced on the surface layer of a material strip through periodic cold impact and mechanical vibration, a micro-crack structure is formed on the surface layer of plastic particles by controlling the particle size of atomized liquid drops, an exhaust channel for volatile component escape is constructed, and then the plastic particles are conveyed to post-treatment equipment for volatile component removal. A solid diffusion process blocked by a skin layer is converted into a physical inrush flow along a microcrack channel, so that a mass transfer energy barrier is reduced, efficient removal of peculiar smell components is realized, and thermal degradation and yellowing of particles are avoided.

The invention relates to the technical field of electrochemical water treatment, and discloses a high-salt waste liquid electric flocculation hardness removal and electrodialysis resourceful treatment method and a high-salt waste liquid electric flocculation hardness removal and electrodialysis resourceful treatment system. The method comprises the following steps: collecting water quality parameters of the high-salt waste liquid and initial electrochemical impedance spectroscopy parameters of a polar plate; calculating the initial current density according to the hardness and the conductivity, carrying out electric flocculation treatment, monitoring impedance spectrum change in real time, identifying the scaling type, and predicting the residual operation time of the polar plate; the current density is optimized according to the prediction time, and the residual hardness is calculated; and adjusting electrodialysis parameters by taking the residual hardness as a feedforward signal for concentration, and performing bipolar membrane electrodialysis on the concentrated solution to obtain acid-alkali liquor. The problems that in the electrochemical treatment process of the high-salt waste liquid, the state of a polar plate cannot be monitored in real time, consequently, operation parameters are adjusted blindly, and energy consumption is high and the recycling efficiency is low due to the fact that parameters of a pretreatment unit and parameters of a pretreatment unit are not linked are solved.

The invention relates to a preparation method of soybean oil base polyhydric alcohol, in particular to a method for preparing soybean oil base polyhydric alcohol by directly using soybean oil. The soybean oil diluted by using a solvent reacts with hydrogen peroxide with the weight percentage being 30% for 2-5 hours at the temperature of 60-70 DEG C under catalysis of a catalyst with the weight percentage being 3-5%; vacuum distillation is conducted after the reaction is ended, and the solvent is evaporated; then low alcohol is added in a reactor to be subjected to a reaction for 4-6 hours under the pressure of 0.3-0.4 MPa and at the temperature of 70-80 DEG C, then the reaction is stopped, and the soybean oil base polyhydric alcohol is obtained. The method saves the using amount of hydrogen peroxide, reduces the post-treatment steps, and simplifies the production procedures, and accordingly the product cost is declined directly.

The invention discloses an automatic treatment device and method for metal workpiece surface polishing and application. According to the automatic environment-friendly electrochemical polishing device, the workpieces are automatically transferred through the automatic conveying device, automatic connection of all the procedures is achieved, and the automatic environment-friendly electrochemical polishing process of the metal workpieces such as the pure magnesium workpieces is achieved; and compared with the prior art, only water is used as a cleaning medium in the whole process, and toxic and harmful chemical agents are not needed. The environmental pollution risk is greatly reduced, and the environmental protection requirement is met. The environment-friendly polishing solution is adopted for electrochemical polishing, core components of the polishing solution are biodegradable non-toxic reagents such as ethyl alcohol and glycerinum, waste liquid treatment is simple, zero liquid discharge can be achieved, and the difficulty and cost of waste water treatment are remarkably reduced. According to the invention, the process flow is simplified, the consumption of chemicals and pollution emission are reduced, and the process efficiency is improved. According to the invention, whole-process monitoring and automatic operation from pretreatment to post-treatment are realized, the production efficiency and consistency are improved, and the method is suitable for industrial large-scale application.

The invention discloses a high-flux high-pollution-resistance nanofiltration membrane as well as a preparation method and application thereof. The scheme is realized by constructing a gradient separation layer compounded by modified MOF and polyamide on a porous support layer; the preparation method comprises the following steps: preparing a water phase from modified MOF grafted with carboxylate radical and sulfonate ion recognition groups on the surface, a polyamine monomer and an ion channel regulator, carrying out interfacial polymerization on the water phase and an oil phase containing a fluorine-containing acyl chloride monomer on the surface of a porous support membrane, and carrying out heat treatment and metal ion post-treatment, the modified MOF in gradient distribution in the nanofiltration membrane can specifically adsorb Ca < 2 + >, Mg < 2 + > and other scaling ions, and scale formation is inhibited from the source; the composite structure simultaneously realizes high flux and high selectivity; the retention rate of the membrane to Na2SO4 under 0.6 MPa is greater than or equal to 99.2%, the retention rate of the membrane to NaCl is less than or equal to 15%, the flux of pure water is greater than or equal to 20 L.m <-2 >. H <-1 >. Bar <-1 >, and the flux attenuation rate is less than or equal to 16.7% after the membrane runs in high-hardness, high-COD and high-salinity wastewater for 120 hours; the scheme is particularly suitable for zero-discharge pretreatment of high-salinity wastewater such as solid waste percolate with the TDS of 5-30% and chemical engineering.

The invention discloses a tubular continuous flow preparation process and a tubular continuous flow preparation device for (R)-(+)-2-(4-hydroxyphenoxy) propionic acid. A hydroquinone aqueous solution and a sodium hydroxide solution are respectively preheated and mixed, and then enter a tubular reactor I for reaction to obtain a hydroquinone sodium alkaline solution. And pumping (S)-(-)-2-methyl chloropropionate into a reaction system, respectively preheating the (S)-(-)-2-methyl chloropropionate and the hydroquinone sodium alkaline solution obtained in the previous step, mixing the (S)-(-)-2-methyl chloropropionate and the hydroquinone sodium alkaline solution, carrying out nucleophilic substitution reaction in a tubular reactor II, and carrying out post-treatment on the reaction completion solution to obtain the high-purity (R)-(+)-2-(4-hydroxyphenoxy) propionic acid. According to the method, an optimization method combining a tubular reaction technology and kinetic research is adopted, and MATLAB simulation and experimental verification are combined, so that the reaction yield reaches 95% or above, and the purity reaches 99% or above; the method is high in reaction controllability, fully continuous in reaction process, convenient to operate, low in cost and suitable for industrial production, and the use amount of hydroquinone is greatly reduced.

The invention discloses a post-treatment liquid and application thereof in an anode foil formation post-treatment process, and the post-treatment liquid comprises the following components in percentage by mass: 0.1-5% of a main film-forming agent, 0.05-3% of a synergistic stabilizer and the balance of a solvent, the main film-forming agent is selected from at least one of a waterborne polyurethane emulsion and a silane coupling agent; the synergistic stabilizer is selected from at least one of organophosphate, molybdate and tungstate. The main film-forming agent and the synergistic stabilizer are compounded to obtain the post-treatment liquid, on one hand, the synergistic stabilizer is firmly combined with an aluminum oxide substrate to carry out deep passivation treatment on an oxidation film on the surface of the anode foil, and on the other hand, the synergistic stabilizer is subjected to network crosslinking with a hydrophobic protection layer formed by the main film-forming agent; the three-dimensional composite protective film can effectively isolate water molecules, repair microdefects on the surface of an oxidation film, prevent the phenomena of specific volume attenuation, leakage current increase and the like of the anode foil, and improve the long-term working reliability of the capacitor.

The invention provides an anti-pollution large-flux reverse osmosis RO membrane as well as a preparation method and application thereof, belongs to the technical field of reverse osmosis membranes, and discloses an anti-pollution large-flux reverse osmosis RO membrane as well as a preparation method and application thereof. The preparation method comprises the following steps: preparing a water phase solution and an oil phase solution, forming a polyamide separation layer through interfacial polymerization, grafting an anti-pollution functional group through post-treatment, and removing an additive complex. The membrane comprises a supporting layer and a polyamide separation layer, the surface of the separation layer is grafted with a specific anti-pollution functional group, and the separation layer has low roughness and a low Zeta potential absolute value. The working principle is based on interfacial polymerization and surface functional modification, and separation, pollution resistance and flux performance are improved by optimizing the structure. During use, water inlet conditions are controlled, and regular chemical cleaning is realized. The membrane balances the separation efficiency, flux and pollution resistance, solves the problems of easy pollution and low flux of the traditional membrane, reduces the operation cost, and improves the water treatment efficiency.

This invention discloses a method and system for purifying and treating release agents, belonging to the field of release agent purification and treatment. The treatment method is as follows: S1, raw release agent wastewater is introduced into a treatment tank for hydraulic cavitation treatment, while ozone is simultaneously introduced. Floating oil, waste wax, and solid particulate matter in the wastewater float to the surface of the treatment tank and overflow into a scum tank; S2, after cavitation treatment, when there is very little scum on the surface of the treatment tank, the treated liquid in the treatment tank is introduced into a media filter for further filtration. The filtered clean liquid is then transported to a supply tank; S3, when the media packing adsorbs a thick wax layer, the pressure in the filter tank reaches a threshold. Water from the circulating water tank is introduced into the filter tank to backwash the wax layer. The water containing wax after backwashing enters the circulating water tank; S4, when the wax content in the circulating water in the circulating water tank reaches a threshold, a low-temperature steel roller is used to cool the water, causing wax to precipitate onto the steel roller. The wax is scraped off and collected, and the water is reused. This invention uses hydraulic cavitation to break out and remove oil and wax from waste liquid, and further removes residual waste wax from the treated liquid through media filtration, ensuring the cleanliness of the recycled mold release agent liquid.

This invention provides a variable-volume box structure and a sewage treatment device for tidal population changes, belonging to the field of domestic sewage treatment technology. It includes a base frame, a main treatment box component, a telescopic box component, a mid-position drive assembly, a telescopic conversion assembly, a post-treatment module, an influent distribution module, an aeration module, and a dosing module. Utilizing the cooperation between the semi-gear and the conversion slider in the telescopic conversion assembly, the expansion and automatic return of the double-sided telescopic box are controlled by a single power source, eliminating the need for additional locking elements to maintain the position of the telescopic box after expansion. The influent distribution module, in conjunction with an air interface, uses air pressure to automatically return sewage from the expanded chamber to the main treatment chamber, and pre-treats it using a grit chamber. This allows the device to expand as needed, fold for storage during transport, and flexibly adjust its volume according to flow rate during operation, significantly improving the equipment's space utilization, operational stability, and resistance to the impact of tidal population changes.

The utility model relates to the technical field of cleaning, in particular to a bottom plate cleaning device which improves the efficiency and cleanliness of smelting post-treatment through automatic cleaning. Comprising a shell internally provided with a cavity used for installing parts; the cleaning assembly comprises a brush plate mounted at the bottom of the shell through a mounting part and a first driving mechanism used for driving the mounting part to rotate, and bristles attached to the surface of the bottom plate are arranged at the bottom of the brush plate; the collecting assembly is used for collecting the impurities cleaned by the cleaning assembly; the moving assembly is used for driving the shell to move on the bottom plate; and the controller is in communication connection with the cleaning assembly, the collecting assembly and the moving assembly.

The invention provides a method for purifying and removing lead in a sodium zincate solution, the method for purifying and removing lead in the sodium zincate solution comprises a main reaction step and a post-treatment step, and the method comprises the following steps: heating an alkaline leachate sodium zincate solution to 50-90 DEG C, adding a displacement precipitation agent while stirring, controlling the addition amount of the displacement precipitation agent to be 0.5-3 g / L, reacting for 0.5-2.5 h, and carrying out solid-liquid separation, and filtering to remove the lead precipitate so as to complete the removal of lead in the sodium zincate solution, and the removal rate of lead reaches 99.15% or above. The lead-containing sodium zincate solution is an alkaline leaching solution obtained after NaOH alkaline leaching is carried out on the finely-ground and screened Lanping oxygen-sulfur mixed lead-zinc concentrate, and the replacement precipitant is zinc powder.

The invention discloses a preparation method and a post-treatment preservation method of triphenyl boron (TPB), and the preparation method comprises the following steps: taking raw materials of triisopropyl borate (TiPB), metal sodium, chlorobenzene, isopropanol and benzene, adding the raw materials into a solvent toluene, and carrying out a reaction to obtain a reaction solution; and extracting the reaction solution with deionized water to obtain a triphenylboron-sodium hydroxide aqueous solution, carrying out post-treatment acid regulation and drying to obtain a triphenylboron (TPB) solid, and finally storing the triphenylboron solid in an organic solution such as toluene and the like. Under the preferable condition, the yield reaches 89.8%. The synthesis method disclosed by the invention is simple, and the prepared TPB is used as a Lewis acid and is widely used as a ligand and a (assistant) catalyst.

The utility model discloses a kind of automatic post-treatment equipment of bolt hot galvanizing, belong to metal surface treatment technical field, it includes the mechanical arm for grabbing work, centrifuge and truss manipulator for throwing away excess zinc liquid, the mechanical arm and centrifuge are all located truss manipulator side, the mechanical arm is located centrifuge rear, cooling pool, passivation pool and blanking conveyor are respectively installed below the truss manipulator, and the passivation pool is located cooling pool and blanking conveyor adjacent side, wherein, it further includes zinc plating basket for containing workpiece, the zinc plating basket outer diameter is less than centrifuge inner diameter, in the utility model, adopt mechanical arm, truss manipulator and blanking conveyor and other automation equipment, the seamless docking of bolt hot galvanizing post-treatment process equipment is realized, to effectively improve the automation degree of device whole, to greatly reduce manual operation, greatly avoid the situation of low production efficiency and low capacity caused by manual operation.

1. Method, in particular a computer-implemented method, for generating training data to determine potentially occurring deformations on a green part (5) which may occur during a post-treatment (6) of the green part (5) following an additive manufacturing process with which the green part (5) can be produced,comprising the following steps: - Providing model data for at least one green part (5) to be produced; - Providing at least one property of the green part (5) to be produced; - Segmenting the green part (5) to be produced into several segments (8) based on the provided model data; - Performing a simulation for each segment of the several segments (8) of the green part (5) to be produced concerning the post-treatment (6) of the green part (5) to be produced based on the at least one provided property of the green part (5); - Determining at least one process property for each segment of the several segments (8) based on the simulation performed, wherein the at least one process property of each segment is used to characterize,which influence the respective segment has on at least one adjacent segment (10) of the multiple segments (8) during the post-treatment (6); and- generating the training data based on the multiple segments (8) and the at least one process property determined for a respective segment of the multiple segments (8), wherein- a post-treatment cycle relating to the post-treatment (6), a green part density of green parts during the post-treatment (6), and / or an arrangement and / or an orientation of the green part (5) to be generated during the post-treatment (6) is provided, wherein the post-treatment cycle relating to the post-treatment (6), the green part density of green parts during the post-treatment (6), and / or the arrangement and / or the orientation of the green part (5) to be generated during the post-treatment (6) is taken into account when performing the simulation for a respective segment of the multiple segments (8),and / or- a geometry of a respective segment, a volume of a respective segment, a geometric configuration of a respective segment and / or a boundary condition concerning a respective segment is taken into account when performing the simulation for a respective segment of the several segments (8), and- on the basis of the simulation performed for a respective segment of the several segments (8), a force exerted by the respective segment on at least one neighboring segment (10), which can be brought about on the basis of the post-treatment (6), is determined, wherein a state of the segment (10) that is at least one neighboring segment to the respective segment can be changed on the basis of the exerted force.

This invention relates to the technical field of SCR aftertreatment, and provides a method, device, system, and engineering equipment for controlling two-way urea injection in an SCR aftertreatment system. The method includes the following steps: acquiring the engine's starting temperature and the current temperature of the preceding SCR; determining that the engine is in a cold start when its starting temperature is lower than a preset temperature; determining that the engine is in a hot start when its starting temperature is not lower than the preset temperature; determining that the engine is in a cold start and the current temperature of the preceding SCR reaches a first injection temperature, and then initiating urea injection through the preceding nozzles, where the first injection temperature is the temperature at which urea begins to hydrolyze; determining that the engine is in a hot start and the current temperature of the preceding SCR reaches a second injection temperature, and then initiating urea injection through the preceding nozzles. Thus, by distinguishing between the engine's cold and hot operating conditions, and by initiating urea injection through the preceding nozzles when the current temperature of the preceding SCR reaches the temperature at which urea begins to hydrolyze, nitrogen oxide emissions during engine cold starts can be reduced.

The present application belongs to the technical field of marine engine bearing bush coating, and discloses a composite treatment method for the surface of a marine heavy-duty engine bearing bush, which comprises bearing bush substrate pretreatment, electroplating treatment, electroplating post-treatment and spraying treatment. The present application breaks through the limitation of single surface treatment technology, uses a tin-nickel alloy electroplating layer as the bottom layer to provide the bearing bush with good basic strength, toughness and impact resistance, and uses a spraying layer containing solid lubricants such as molybdenum disulfide and graphite as the surface layer to endow the bearing bush with excellent compliance, embeddability and self-lubricating performance. The combination of the two perfectly solves the technical problem that the traditional process cannot simultaneously consider strength and surface performance, and is particularly suitable for the complex working conditions of frequent start-stop and power overload of marine heavy-duty engines.

The surface burr post-treatment device comprises a bottom frame, three sets of vertical plates are welded to the upper end of the bottom frame, a first motor is connected to one side of each vertical plate in a bolted mode, a hollow shell is connected to the output end of each first motor in a bolted mode, and an electric push rod is connected to the interior of each hollow shell in a bolted mode. An electric push rod is arranged at the upper end of the bottom frame, a piston end of the electric push rod is in bolted connection with a connecting rod, one end of the connecting rod is in bolted connection with a push broach, and a dismounting and mounting assembly is arranged at the upper end of the bottom frame. And the cleaning structure can scrape waste on the surface of the dismounting and mounting assembly, meanwhile, the machined silica gel sealing ring can be pushed to one side of the bottom frame, and a box used for receiving the silica gel sealing ring is placed on one side of the bottom frame and used for collection and use.

This invention discloses a multi-stage microwave-enhanced purification process for quartz sand, belonging to the field of mineral processing engineering technology. The process sequentially includes the following steps: raw material pretreatment, a first-stage microwave-water quenching, flotation separation, a second-stage microwave-water quenching, deep acid leaching, and post-treatment; wherein the microwave power used in the first-stage microwave-water quenching step is lower than that used in the second-stage microwave-water quenching step. This invention, through segmented microwave power design, uses lower-power microwave treatment before flotation to optimize mineral surface properties and improve flotation efficiency; and uses higher-power microwave treatment before acid leaching to enhance the development of internal cracks in the mineral and improve the acid leaching effect, thus synergistically solving the technical contradiction of traditional heat treatment processes that promote flotation while inhibiting acid leaching. This process has the advantages of good purification effect, low energy consumption, and environmental friendliness.

A kind of zirconium alloy water environment corrosion microscopic mechanism analysis method based on ab initio molecular dynamics, 1, construct the multi-phase interface model of metal substrate model and corrosion medium layer model combination, obtain the size information of simulation box;2, set simulation parameters for multi-phase interface model;3, carry out geometry structure optimization to multi-phase interface model and eliminate local internal stress, then carry out ab initio molecular dynamics simulation, obtain atomic evolution track and corrosion product structure;4, carry out data post-processing and statistical analysis to ab initio molecular dynamics simulation result, obtain corrosion elementary reaction path and calculate reaction energy barrier, the interaction mechanism of corrosion group and surface is analyzed by DFT method.The method can complete accurate zirconium alloy corrosion process dynamic simulation under periodic boundary condition, has higher calculation precision and is more reasonable to the description of interatomic force in system, and can also analyze the interaction mechanism between alloy and corrosion medium from atomic electronic scale.

The invention provides a polishing solution and a surface post-treatment method of a semiconductor structural member. The polishing solution is prepared from the following raw materials in percentage by volume: 1-15 parts of diamond micro powder, 30-50 parts of animal fat, 0.5-1 part of potassium hydroxide, 0.5-3.5 parts of polyethylene glycol and 50-70 parts of water. The surface post-processing method comprises the following steps that a profiling tool groove is customized according to the size of a semiconductor structural part to be processed, and the profiling tool groove is installed on a carrying table; a semiconductor structural part to be machined is adsorbed and placed on the profiling tool groove, and then polishing liquid is added into the profiling tool groove; and a polishing head is installed, and the semiconductor structural part to be machined is automatically polished. In the grinding process, the efficiency is considered while the grinding head and the to-be-machined semiconductor structural part (workpiece) are lubricated, the heating probability of the contact face between the grinding head and the workpiece is reduced to the minimum under the action of the grinding liquid, meanwhile, the service life of the grinding water solution is prolonged, and the problem of wastewater pollution discharge is completely eradicated.

The application belongs to the technical field of chondroitin sulfate preparation, and particularly relates to application and application method of liquid sulfur dioxide in preparation of chondroitin sulfate or chondroitin sulfate salt. In the application, liquid sulfur dioxide is used as a solvent to perform sulfonation modification treatment on unsulfated chondroitin, on the one hand, the use of traditional high-boiling organic reagents is avoided, the difficulty of three-waste treatment is reduced, and the process is more green and environmentally friendly; on the other hand, the post-treatment operation of the sulfonation reaction is simpler, and sulfur dioxide can be removed from the system by only temperature control or pressure adjustment, so that solvent residues possibly existing in the final product are avoided, and the product is safer. In addition, by adjusting the key conditions of the sulfonation reaction, the proportion of chondroitin sulfate with 6 independent sulfation in the disaccharide unit of the sulfonation product is 70% to 90%, the reaction is stable and reliable, and the sulfonation rate is high.

The present invention discloses a wire surface anti-rust lubrication treatment device and treatment process, belonging to the technical field of anti-rust lubrication treatment devices. The device includes: a pretreatment component, a high-temperature phosphating component and a post-treatment component. Through ingenious mechanical collaborative design, this solution seamlessly integrates the four functions of sampling, sealing, observation and cleaning reset. Utilizing the mechanical energy released by this single-driven action of sampling, it automatically triggers the pressing and sealing of the sample in sequence, forming a complete low-energy consumption monitoring closed loop, abandoning the redundant mode of traditional multi-power source independent drive. At the same time, this integrated and modular design fundamentally improves the maintainability of the device: its unique self-sealing structure and the automatic reset flushing realized by the cleaning component using the friction difference make it difficult for key components to remain corrosive substances. During maintenance, only the modular unit needs to be quickly processed, greatly reducing the operation and maintenance complexity and ensuring the reliability and service life of the long-term operation of the device.

The utility model belongs to the technical field of strip steel post-treatment equipment, and particularly relates to a device for cleaning impurities on the surface of annealed strip steel. A device for cleaning impurities on the surface of annealed strip steel comprises a main machine cabinet, a partition plate is arranged in the main machine cabinet and divides the interior of the main machine cabinet into an upper machine cabinet and a lower machine cabinet, and a communication opening is formed in one side of the partition plate; one end of the main machine cabinet is a material guiding opening, and the other end of the main machine cabinet is provided with a machine cabinet door. A first guide roller set, a first lifting rotating roller and a second guide roller set are sequentially arranged in the lower machine cabinet, and cleaning assemblies are arranged on the two sides of the first lifting rotating roller. The first guide roller set and the second guide roller set are located at the same horizontal height. A fourth guide roller set, a second lifting rotating roller and a fifth guide roller set are sequentially arranged in the upper machine cabinet, and cleaning assemblies are arranged on the two sides of the second lifting rotating roller. The fourth guide roller set and the fifth guide roller set are located at the same horizontal height.

This invention provides a treatment accelerator injection system that allows for the real-time selection of the appropriate injection rate of the treatment accelerator. [Solution] The treatment accelerator injection system comprises a water treatment measurement unit, an acquisition unit, a treated water quality prediction unit, and an injection rate determination unit. The water treatment measurement unit acquires water quality information of the water treatment. The acquisition unit acquires at least constraint condition information that defines the water quality state of the treated water after water treatment, operating condition information when water treatment is performed, and a plurality of different assumed injection rate values ​​indicating the provisional injection rate of the treatment accelerator for water treatment of the water treatment. The treated water quality prediction unit acquires, for each assumed injection rate value, the predicted treated water quality obtained when water treatment is performed according to the operating condition information by injecting the treatment accelerator based on each assumed injection rate value into the water treatment indicated by the water quality information. The injection rate determination unit determines the assumed injection rate value corresponding to the predicted treated water quality value that satisfies the constraint condition information as the final injection rate value, based on the plurality of predicted treated water quality values ​​and the constraint condition information.

This invention belongs to the field of polymer protective materials technology, and discloses a nitrile glove modified with bio-based itaconic acid ester rubber latex and compounded with an antibacterial agent, as well as its preparation method. The glove uses carboxylated nitrile butadiene latex as the matrix, introduces a bio-based itaconic acid ester rubber latex pretreated with a silane coupling agent as a reactive interfacial compatibility component, and uses nano-silver-zinc composite particles and reactive quaternized chitosan to form an immobilized composite antibacterial phase. The glove is prepared through blending, impregnation molding, surface immobilization treatment, gradient vulcanization, and post-treatment. The resulting glove possesses excellent flexibility, low-temperature embrittlement resistance, oil resistance, and long-lasting antibacterial properties, and the antibacterial components are not easily migrated or detached, making it suitable for food processing, medical auxiliary protection, and low-temperature operations.

The present disclosure generally provides methods. The methods include exposing a substrate in a processing chamber to a deposition precursor to form a first film. The first film having a first dielectric constant, a first leakage current, a first breakdown voltage, and a first hardness. The first film is exposed to a reactive precursor to form a second film. The second film having a second dielectric constant, a second leakage current, a second breakdown voltage, and a second hardness, wherein the reactive precursor comprises an oxygenated precursor. The second film is exposed to a UV light source to form a third film. The third film having a third dielectric constant, a third leakage current, a third breakdown voltage, and a third hardness.

The invention provides rare earth recovery sewage treatment equipment, which relates to the technical field of rare earth sewage treatment, and comprises a rare earth sewage pool, a filtration and enrichment device, a temporary storage device, a post-treatment device and a reflux detection device, the rare earth sewage pool is communicated with the filtering and enriching device, and the filtering and enriching device comprises a filtering mechanism and an enriching mechanism; the filtering mechanism is respectively connected with the temporary storage device and the reflux detection device, and the enrichment mechanism is connected with the post-treatment device. Impurities and small-particle impurities in the rare earth sewage are removed through the transverse grating and the filter block, and then rare earth ions are efficiently enriched through the chelating adsorption column; meanwhile, the reflux detection device is matched with the cleaner, so that residual heavy metal ions and harmful anions can be removed in a targeted manner, the treated rare earth sewage can reach the internal recycling or direct discharge standard without secondary centralized treatment, the treatment flow is simplified, and the comprehensive treatment cost is reduced.