177results about How to "Reduce adsorption" patented technology

The invention discloses giant salamander grease and application thereof in a blood fat reducing product. The giant salamander grease is obtained by adding papain into giant salamander tissues for enzymolysis and then adsorbing by using an egg white modified microsphere adsorbent. The giant salamander grease is refined by using the egg white modified microsphere adsorbent, and then the giant salamander grease is compounded with the dark tea extract, the hawthorn extract and the lotus leaf extract and processed into embedded particles, so that the water solubility of the giant salamander grease preparation can be improved, and the giant salamander grease preparation can be used as an oral preparation for reducing blood fat.

The utility model relates to powder conveying technical field especially is concerned on a kind of catalyst carrier powder conveying equipment;Including the hopper of cone angle ≥70 °, the roughness Ra of the inner wall surface of hopper ≤0.4 μm, pneumatic flow-aiding ring is set in the height ≤1 / 3 cone height of hopper lower part and the height from discharge port, and the annular air cavity of pneumatic flow-aiding ring is connected outside gas source;Pneumatic flow-aiding ring circumferentially distributes first nozzle group and second nozzle group, and the jet direction of first nozzle group is inclined upwards along hopper inner wall, for fluidizing powder layer in advance;The jet direction of second nozzle group is inclined downwards along hopper inner wall, for promoting powder slip.

The invention relates to a corrosion-resistant cable sheath material and a preparation method thereof, and relates to the technical field of cable materials, the corrosion-resistant cable sheath material comprises the following raw materials by weight: 95-105 parts of a base material, 5-10 parts of polyvinylpyrrolidone, 10-18 parts of modified zinc oxide, 1-2 parts of an antioxidant, 0.4-0.8 part of a vulcanizing agent, and 4-8 parts of a plasticizer. Compared with the prior art, the special modified zinc oxide and the polyvinylpyrrolidone in a proper K value range are mainly introduced, and all the components have a synergistic effect, so that the corrosion-resistant stability of the material is remarkably improved, the service life of the cable is prolonged, and the use requirements in the field of submarine underwater cable sheaths are met.

This invention discloses the preparation of nitrogen-containing heterocyclic aluminum-based metal-organic framework materials and their application in methane adsorption. The metal-organic framework material is Al-PyDC or Al-PzDC, wherein Al-PyDC is formed by the coordination of aluminum ions with 3,5-pyridinedicarboxylic acid, and Al-PzDC is formed by the coordination of aluminum ions with 3,5-pyrazoledicarboxylic acid. The Al-PzDC material prepared by this invention achieves an adsorption capacity of 43.99 cm⁻¹ for methane at 273 K and 1 bar. 3 The adsorption capacity showed no significant decrease after 10 adsorption-desorption cycles, demonstrating excellent separation performance for methane and nitrogen mixtures. The metal-organic framework material synthesis method provided by this invention is simple, mild, and environmentally friendly, showing promising application prospects in the adsorption and separation of methane and nitrogen in coalbed methane.

The present application relates to the technical field of edible salt, and particularly relates to a green edible salt production process. Technical problems are as follows: the existing technology causes the caking problem of edible salt in the production, transportation, storage and use process due to the zero addition of anti-caking agent. A technical solution is as follows: a green edible salt production process comprises the following steps: A: secondary cooling of finished salt before packaging; the finished salt is sent into a secondary cooler after coming out of a self-made salt device dryer, and the temperature of the finished salt is reduced to close to room temperature through circulating desalted water; B: screening of the finished salt particles cooled in step A, and selection of the oversize material with relatively large particle size and not easy to caking; C: addition of iodine agent into the finished salt cooled and screened in step B; D: storage of the finished salt in step C for a period of time before packaging; E: packaging by using a packaging material with strong blocking property and good sealing performance.

The utility model relates to PVC section bar technical field, and disclose a kind of PVC section bar milling groove tool, including workbench, the top of workbench is provided with recess, the inner wall of recess is fixedly connected with support leg, the top of support leg is fixedly connected with placing plate, cleaning mechanism is provided on the workbench, and the cleaning mechanism includes side plate, guide rail, linear motor, telescopic link, mounting bracket, first spring, cleaning roller.The utility model linear motor drives cleaning roller to move along section bar surface, cooperate the elastic compression of first spring, ensure that cleaning roller and section bar surface are closely attached, effectively wipe water vapor and attached impurity, avoid milling when chippings because of damp agglomerate and block cutter, hot air blower is sent hot air to the section bar surface after cleaning by air outlet pipe, accelerate residual water vapor evaporation, reduce section bar surface moisture content, solve chippings sticking problem from root when milling groove in damp environment, improve milling groove precision.

This disclosure provides a polishing pad and a final polishing apparatus. The polishing pad includes: a substrate; and a deformable unit disposed on the substrate. The deformable unit is capable of switching the polishing pad between a first shape mode and a second shape mode by deformation. In the first shape mode, the polishing surface of the polishing pad has grooves, and in the second shape mode, the polishing surface of the polishing pad is flat.

The invention discloses a method for simulating phosphorus and chromium migration during farmland irrigation with acid mine wastewater, which comprises the following steps: mixing a plant-derived organic material with deionized water to obtain a soluble organic matter; h2O2 oxidizes Fe < 2 + > to prepare pure Schwertmannite, and the pure Schwertmannite is placed in a phosphate solution to obtain phosphorus-loaded Schwertmannite; mixing the phosphorus-loaded Schwertmannite and the soluble organic matter with a chromate solution, carrying out oscillation adsorption, carrying out solid-liquid separation after adsorption, carrying out CrO and POconcentration change test on filtrate, and carrying out mineral characterization on separated solids; a three-dimensional fluorescence spectrum is adopted to track composition conversion of the soluble organic matter in the reaction process; and analyzing the component change of the supernate before and after the reaction by adopting Fourier transform ion cyclotron resonance mass spectrometry. The influence mechanism of DOM on phosphorus and chromium fate in mineral / water interface molecular fractionation is disclosed from the molecular level, and a scientific basis is provided for collaborative migration risk assessment of phosphorus and heavy metal in acid mine wastewater irrigation area farmland.

The application belongs to the technical field of detection, and particularly relates to a method for determining the content of chlorhexidine acetate in a disinfectant. The method for determining the content of chlorhexidine acetate in the disinfectant comprises the following steps: (1) dispersing the sample with glacial acetic acid, releasing chlorhexidine acetate combined with sample matrix components, and extracting with a methanol aqueous solution; and (2) taking a tetrabutylammonium bromide-acetic acid-acetonitrile solution as a mobile phase, and detecting with a high-performance liquid chromatograph. The method for detecting chlorhexidine acetate is simple in operation, good in reproducibility, complete in separation from impurities, high in accuracy, and has a good application prospect.

The utility model discloses a kind of automatic dust removal type intelligent detection warp knitting machines of anti-yarn flying, related to warp knitting machine technical field, including warp knitting machine main body, the side of warp knitting machine main body is provided with mounting bracket, the inboard of mounting bracket is provided with detection beam, the below of detection beam is provided with multiple detection probe, the below of detection beam one side is provided with cleaning frame, the inside of cleaning frame is provided with first cavity, the side of cleaning frame close to detection beam is provided with multiple micro air jet, the side of warp knitting machine main body is provided with air blower, air inlet pipe is arranged between air blower and cleaning frame, this warp knitting machine installs micro air jet near intelligent detection module, periodically spray airflow towards intelligent detection module by micro air jet, remove yarn flying and dust attached on intelligent detection module by the help of the airflow of injection, ensure that intelligent detection module clear vision, improve the accuracy of intelligent detection system.

This invention relates to the field of concrete admixtures, specifically to an anti-mud polycarboxylate superplasticizer, its preparation method, and its application. The anti-mud polycarboxylate superplasticizer provided by this invention comprises, by weight, the following raw materials: 100-180 parts of unsaturated polyether monomer, 5-10 parts of unsaturated carboxylic acid monomer, 2-5 parts of air-entraining monomer, 5-10 parts of anti-mud monomer, 10-20 parts of oxidant, 0.4-0.6 parts of reducing agent, 5-7 parts of chain transfer agent, and 150-300 parts of water; the air-entraining monomer and the anti-mud monomer have specific structures. The simultaneous introduction of specific anti-mud monomers and air-entraining monomers into the anti-mud polycarboxylate superplasticizer of this invention not only reduces clay adsorption but also provides better dispersibility and anti-mud effect at lower dosages, increasing the overall workability of concrete and improving concrete performance.

This invention provides a fluorinated DSPE-PEG material, its preparation method, and its applications, belonging to the fields of nanomedicine delivery systems and biomedicine. This invention prepares fluorinated DSPE-PEG materials with different fluorination modification rates by fluorinating distearate phosphatidylethanolamine polyethylene glycol amino groups, and uses these materials as carriers to load sangxin (a type of glycerol) to form fluorinated nanomicelles. This invention systematically screens the effect of fluorination modification rate on the performance of the nanomicelles, determines the optimal fluorination modification rate, and confirms that it can overcome the defect of low cellular uptake of PEGylated carriers and enhance the anti-colorectal cancer activity of the loaded drugs. The fluorinated nanomicelles have uniform particle size, good stability, and excellent biocompatibility with the carrier material. This invention provides a new strategy for the efficient delivery of small molecule active ingredients from traditional Chinese medicine and the treatment of colorectal cancer.

According to the shoe mold auxiliary demolding mechanism for shoe production, two supports are arranged at the upper end of a bottom plate and symmetrical to a bottom mold, first rotating shafts are rotationally arranged at the tops of the supports, two toothed plates are symmetrically arranged on the two sides of the bottom mold, driving wheels are meshed with the toothed plates, and a box located above the bottom plate is arranged on one side of the bottom mold; the motor is fixedly arranged outside the box body, the two driving wheels can drive the bottom die to descend along the guide rods through the toothed plate under the meshing effect, the bottom of the bottom die can make contact with the bottom plate, at the moment, the shoe sole formed on the base can stretch out of the die groove and can be exposed in the environment, the shoe sole cannot make close contact with the inner wall of the die groove, and therefore the shoe sole forming efficiency is improved. And the adsorption force at the sole can be reduced.

The application discloses an ultrafiltration membrane for sewage treatment and a preparation method thereof, and relates to the field of membrane separation technology. The method comprises the following steps: firstly, ZnO@PHEMA-Ag nanoparticles are prepared, and the nanoparticles are pretreated, modified, grafted and loaded with silver nanoclusters; then, maleic anhydride grafted PVDF and modified MXene are prepared; then, a composite casting solution is prepared, and the solution is cast into a film and then immersed into a polyvinyl alcohol coagulation bath containing dimethylformamide to form a film; finally, the finished ultrafiltration membrane is obtained through ultraviolet crosslinking post-processing. The ultrafiltration membrane has excellent anti-pollution performance through functional nanoparticles, substrate modification and process optimization.

The application discloses a cleaning method for removing a suction pen mark on a surface of a silicon carbide substrate and the silicon carbide substrate, and belongs to the technical field of silicon carbide detection. The cleaning method comprises the following steps: (1) using a mixed solution of ammonia and hydrogen peroxide to clean the surface of the substrate, so as to pre-oxidize the surface of the substrate; (2) using ozone water to clean the pre-oxidized substrate, so as to obtain a substrate containing an oxidation layer; and (3) using an acidic cleaning solution with a pH value of 2.0-3.5 to clean the substrate containing the oxidation layer, and then performing water washing and blowing dry, so as to obtain a cleaned silicon carbide substrate. The method can change the Zeta potential of the oxidation layer on the surface of the substrate, so that the surface potential of the substrate is not lower than 0 mV, thereby reducing the adsorption of positively charged particles on the suction pen, achieving the technical effect of completely removing the suction pen mark, and improving the quality of the silicon carbide substrate.

This invention relates to a mesoporous platinum@platinum-nickel core-shell framework nanowire and its preparation method, comprising the following steps: (1) uniformly mixing platinum precursor, nickel precursor, structure directing agent, and reducing agent with a first solvent, and performing a hydrothermal reaction to obtain Pt@Pt-Ni core-shell nanowires; (2) uniformly mixing the Pt@Pt-Ni core-shell nanowires with a second solvent and acetic acid, and performing an etching reaction to obtain etched mesoporous platinum@platinum-nickel core-shell framework nanowires. This invention employs a hydrothermal method, which is simple, reproducible, and allows for batch production with safety. Compared with traditional commercial platinum-carbon catalysts, the catalytic activity is greatly improved, the stability is greatly enhanced, and the production cost is reduced.

The application belongs to the technical field of ship exhaust purification, and particularly relates to a catalyst for decomposing N2O in the exhaust of a ship ammonia internal combustion engine and a preparation method thereof. 3+ By replacing Co ions in the Co3O4 spinel lattice into the lattice, the doping behavior can effectively reduce the number of hydroxyl groups on the surface of the catalyst, significantly weaken the adsorption and combination ability of water molecules, and thus improve the stability of the catalyst in a high-humidity exhaust environment. As an additive, CeO2 uses its oxygen storage capacity to promote the migration and desorption of oxygen species in the reaction, preventing the deactivation of active sites due to oxygen poisoning. The molecular sieve carrier not only provides a highly dispersed surface for the active component to prevent sintering, but also optimizes the adsorption and activation path of N2O and alleviates the poisoning effect of nitrogen-containing intermediate species or impurities in the exhaust on the Co active center during the reaction.

This invention belongs to the field of photovoltaic panel cleaning technology, specifically relating to an intelligent cleaning device and method suitable for large-angle flexible photovoltaic roofs. The intelligent cleaning device for large-angle flexible photovoltaic roofs includes an anchoring and traction system and a cleaning robot body. The anchoring and traction system includes a winch assembly installed on the roof, a composite cable connected to the winch assembly, and a central control unit. The composite cable integrates a traction rope, a power supply cable, and a water supply hose. The cleaning robot body is connected to the winch assembly via the composite cable and includes a walking and adsorption mechanism, an intelligent adsorption pressure control system, and a cleaning mechanism. The walking and adsorption mechanism is a tracked vacuum suction cup composite walking mechanism. The intelligent cleaning device for large-angle flexible photovoltaic roofs of this application enables safe, stable, and efficient fully automated cleaning operations on the surface of large-angle, flexible photovoltaic panels using the cleaning robot body.

The embodiment of the invention discloses an aerosol generating substrate section, a preparation method thereof and an aerosol generating product, the aerosol generating substrate section comprises a flaky substrate, the aerosol generating substrate section is of a winding structure formed by winding the flaky substrate, and the flaky substrate comprises a substrate layer, a casting layer and a plurality of substrate strips; the substrate strips are arranged on one side of the substrate layer at intervals in the winding direction of the flaky substrate, the axial directions of the substrate strips intersect with the winding direction, and the substrate strips can be heated to generate aerosol; the curtain coating layer is formed by curtain coating slurry in a curtain coating mode, and the curtain coating layer wraps at least part of the outer side wall of the matrix strip. The airflow channels can be formed between the substrate strips, and the generated aerosol can be released through the airflow channels, so that the suction effect of the aerosol generating product is ensured, and the suction resistance of the aerosol generating product is reduced.

This application relates to a valve structure, including a valve body, with a valve cap and a connecting seat connected to both ends of the valve body. The valve cap is a hollow sleeve and can slide on the valve body. A cap is movably provided at one end of the valve cap, which can close the valve body. A snap-fit ​​part is provided on the valve body, which can connect with the end of the valve cap away from the cap. This application, by providing a movably connected valve cap on the valve body, and by making the valve cap hollow sleeve, allows the valve cap to move, facilitating normal inflation of the valve body. By providing a movably provided cap on the valve cap, the valve body can be closed, preventing dust and water from entering and facilitating use. Simultaneously, the snap-fit ​​part on the valve body, which can connect with the valve cap, can restrict the position of the valve cap, achieving an anti-theft and anti-loss effect.

This application provides a TOPCon solar cell with improved leakage current and its fabrication method, relating to the photovoltaic field. After phosphorus diffusion, a patterning process is performed on the front edge and central axis of the silicon wafer using a laser, followed by acid washing and alkali washing to obtain an alkali-washed silicon wafer. An Al2O3 thin film is prepared on the front surface of the alkali-washed silicon wafer using plasma ALD, followed by annealing to form an Al2O3 layer. SiO2 is then prepared on the surface of the Al2O3 layer using plasma ALD. x N y Layer; SiH4, CM4 and CH3M gases are introduced, and ALD is used on SiO2. x N y SiN layer surface x M layer; M is a halogen element, SiN x Halogen elements in the M layer move along the path close to SiO₂ x N y One side of the layer to the side away from SiO x N y The content gradient on one side of the layer decreases; electrode printing, sintering, and light injection are performed to obtain TOPCon solar cells with improved leakage current. This can reduce recombination loss and leakage current.

The utility model discloses a kind of cleaning device of magnetic rod, it is related to lithium ion battery manufacturing technical field.The cleaning device includes sleeve, solenoid and cleaning ring, the sleeve can be sleeved in magnetic rod;The solenoid is fixedly arranged in the sleeve, and can be with the sleeve and be set on the outer periphery of the magnetic rod, the solenoid can generate first magnetic field, the magnetic rod has second magnetic field, the first magnetic field can offset at least a part of the second magnetic field;The cleaning ring is movably arranged in the sleeve along the axial direction of the sleeve, and the cleaning ring is configured to scrape off impurities on the surface of the magnetic rod.The cleaning device can reduce the difficulty of scraping off magnetic impurities from the surface of the magnetic rod, save manpower, improve the efficiency and effect of cleaning the magnetic rod.

The utility model relates to the technical field of filtering and cleaning of chemical equipment, in particular to an ammonia water pump inlet filter cleaning device which comprises an ammonia water pump body, an inlet pipe is installed at the water inlet end of the ammonia water pump body, the water outlet end of the ammonia water pump body is communicated with an outlet pipe, and a filter is installed on the inlet pipe. The inlet pipe is communicated with a desalted water pipe, the outlet pipe is communicated with a return pipe, a circulating pipe is communicated between the desalted water pipe and the return pipe, a circulating pump is arranged in the middle of the circulating pipe, a liquid storage tank is arranged on one side of the circulating pump, and the liquid storage tank is communicated with the circulating pipe through a liquid conveying pipe. Desalted water circulating flushing is adopted to replace traditional direct liquid discharging, residual ammonia water in the filter and the ammonia water pump body is removed, the poisoning risk caused by volatilization of high-concentration ammonia water is reduced, the situation that GDS alarm is triggered and desalted water circulating flow washes impurities and crystals attached to the surface of a filter screen of the filter is reduced, the service life of the filter is prolonged, and the service life of the filter is prolonged. And the use and production cost is reduced.

The utility model relates to industrial automation technical field discloses an industrial standard gas automatic proportioning device, including the cabinet body, the cabinet body inside is physically divided into the gas confluence area of upper part and the electrical control area of lower part, be provided with a plurality of parallel gas treatment branch in the gas confluence area, operation and display panel, set up in the front side of electrical control area, mixer, including outer mixing cylinder and inner mixing cylinder, the lateral wall of outer mixing cylinder is set up with a plurality of communicating holes, a plurality of communicating holes with the export of a plurality of gas treatment branch are linked, back pressure regulating valve, its installation in the export of outer mixing cylinder, in the utility model, through setting back pressure regulating valve, the working environment of core flowmeter is stabilized, and the proportioning precision is promoted, simultaneously, the safety interlock design of its normally closed valve, cooperate electrolytic polishing pipeline and metal face seal joint, on the basis that realizes active safety protection, guarantees the high purity of mixed gas again.

This invention discloses a single-layer soft dental membrane and method for dental treatment or oral protection, belonging to the field of dental materials technology. The membrane is made of thermoplastic polyurethane elastomer (TPU) with a microphase separation structure and a hydrophilic modified layer containing polydopamine and hydrophilic polymer on its surface. The membrane has a Shore hardness of 75A-90A, a tensile strength of 15-50MPa, an elongation at break ≥500%, and a thickness of 0.5-6.0mm. The preparation method includes TPU drying, extrusion molding, plasma treatment, and hydrophilic coating impregnation reaction. The membrane of this invention has flexibility, durability, antibacterial properties, and high transparency, and its comprehensive performance is superior to that of existing EVA membranes. It can be used in dental whitening trays, sports mouthguards, or oral ulcer protection patches.

The utility model relates to the technical field of micro-grids, in particular to a micro-grid energy conversion device. A micro-grid energy conversion device comprises an energy storage box body, a ventilation pipeline, a cooling fan and the like. The energy storage box body is communicated with a plurality of ventilation pipelines; and a plurality of cooling fans are mounted in each ventilation pipeline. Dust attached to the dustproof net is cleaned in a brushing mode through second bristles, and the problems that in the prior art, the dustproof net is cleaned in an air blowing or flapping mode, only a simple cleaning effect can be achieved in the mode, dust and other impurities which are attached stubborn are difficult to remove, and the dust cannot be cleaned after long time can be solved. A large amount of dust and other impurities will adhere to the dustproof net, and therefore the service life of the dustproof net will be shortened.

This invention relates to the fields of adsorbent preparation and heavy metal remediation technology, and particularly to an amorphous iron-magnesium-aluminum silicate, its preparation method, and its applications. This invention utilizes molten salt-mediated ion exchange and lattice recombination under high-temperature conditions to completely and uniformly transform various silicate minerals from complex and inconsistent natural clay minerals into a non-naturally formed, structurally homogeneous, and stable amorphous iron-magnesium-aluminum silicate. This overcomes the limitation of traditional adsorbents having a narrow applicable concentration range, exhibiting extremely strong removal capabilities for heavy metal ions from high to low concentrations, achieving deep purification. Based on the theory of "increasing configurational entropy," this invention proposes the design of a silicate network framework with dense, highly active sites and multiple metals, breaking through the traditional approach of "simple modification" of natural clay minerals. It fundamentally reconstructs their material composition, providing a material that combines low cost with revolutionary adsorption performance.

The invention discloses an amphoteric polyether modified chitosan quaternary ammonium salt leveling agent as well as a preparation method and application thereof. The preparation method of the amphoteric polyether modified chitosan quaternary ammonium salt leveling agent comprises the following steps: dissolving chitosan in an acetic acid solution, and adding an oxidizing agent for degradation to obtain a low-molecular-weight chitosan solution; adding a cationic etherifying agent into the low-molecular-weight chitosan solution, and carrying out heating reaction under an alkaline condition to obtain a chitosan quaternary ammonium salt solution; adding epoxy-terminated polyether into the chitosan quaternary ammonium salt solution to obtain a polyether grafted chitosan quaternary ammonium salt solution; adding succinic anhydride into the polyether grafted chitosan quaternary ammonium salt solution for acylation reaction to obtain an amphoteric polyether modified chitosan quaternary ammonium salt solution; and concentrating the amphoteric polyether modified chitosan quaternary ammonium salt solution, adding water, and uniformly mixing to obtain the amphoteric polyether modified chitosan quaternary ammonium salt leveling agent. The amphoteric polyether modified chitosan quaternary ammonium salt leveling agent disclosed by the invention has excellent leveling property, retarding property and migration property in anionic dye dyeing.

The utility model discloses a raw cotton impurity analyzer with an antistatic roller shaft, which belongs to the technical field of textile machinery, and comprises a rack, a surface table at a feeding end and a carding roller, the roller shaft is arranged at the upper end of the surface table, the roller shaft is made of an integrated antistatic nylon material, transverse flutes are arranged on the surface of the roller shaft, and the surface resistivity is 10-10 omega.cm; positioning assemblies are installed on the two sides of the rack, each positioning assembly comprises a hydraulic air cylinder, a positioning clamping jaw and a pressure sensor, the telescopic end of each hydraulic air cylinder abuts against the end of the corresponding roller shaft through the corresponding positioning clamping jaw so that the roller shaft can be attached to the cambered surface of the corresponding surface table, and the pressure sensors monitor pressure values in real time and feed the pressure values back to the control system; by means of the integrated antistatic nylon roller shaft, the precise positioning mechanism driven by the hydraulic air cylinder and the bevel gear transmission assembly, electrostatic interference is effectively eliminated, millimeter-level dynamic positioning is achieved, friction loss is reduced, and raw cotton impurity detection precision and equipment operation stability are remarkably improved.