90results about How to "Avoid passivation" patented technology

The novel electrochemical sewage treatment equipment comprises an electrolytic tank, a voltage-stabilized source, electrode plates and a cleaning and stirring structure, liquid inlet and outlet pipes are arranged on the two sides of the electrolytic tank, the electrode plates are arranged on the opposite side walls in the electrolytic tank, the voltage-stabilized source is arranged on the side wall of the electrolytic tank, the electrode plates are electrically connected with the voltage-stabilized source, and the cleaning and stirring structure is arranged in the electrolytic tank. The cleaning and stirring structure is arranged in the electrolytic tank; the cleaning and stirring structure comprises stirring shafts, a driving shaft and a driving motor, a driving shell is arranged on one side of the electrolytic tank, the stirring shafts are rotationally arranged on the opposite side walls in the electrolytic tank, and the number of the stirring shafts is three. The utility model relates to the technical field of sewage treatment equipment, and particularly provides novel electrochemical sewage treatment equipment which can be used for cleaning an anode plate and simultaneously can be used for conveniently cleaning dirt sediments.

The invention belongs to the technical field of electrochemical engineering, and relates to a three-dimensional electrochemical reactor which comprises a reactor shell assembly, three-dimensional electrode modules, counter electrode modules, diaphragms or polymer partition plates and an external power supply, the counter electrode modules are arranged in pairs, and the three-dimensional electrode modules are clamped between the counter electrode modules arranged in pairs; the diaphragm or the polymer partition plate is clamped between the electrode surface of the counter electrode module and the electrode surface of the three-dimensional electrode module, and the three-dimensional electrode module, the counter electrode module and the diaphragm or the polymer partition plate are arranged in an inner cavity of the reactor shell assembly; according to the invention, the fluid can flow through the interior and surface of the three-dimensional electrode, and a main electrochemical reaction field is transferred to the interior and surface of the three-dimensional electrode, so that the sufficient flow and mixing of the fluid between the electrodes are ensured while the electrode spacing is shortened as far as possible, the solution resistance is reduced, the cell voltage is reduced, and the current efficiency is improved; and energy consumption increase and equipment damage caused by overhigh voltage are avoided.

The utility model relates to the technical field of defluorination, and discloses electrochemical deep defluorination equipment which comprises universal wheels, a defluorination mechanism is arranged at the tops of the universal wheels, a handrail is arranged on the left side of the defluorination mechanism, a limiting mechanism is arranged at the top of the defluorination mechanism, and the defluorination mechanism comprises a stirring assembly and a defluorination assembly. The stirring assembly is arranged at the tops of the universal wheels, the defluorination assembly is arranged at the top of the stirring assembly, in the using process, through the arranged defluorination mechanism, under the action of the anode plate and the cathode plate, after voltage is applied, positive ions can be released by an anode, negative ions can be attracted by a cathode, and in the process, fluorine ions can be effectively removed; in addition, in the treatment process, the fluorine-containing wastewater can be stirred through the stirring rod, the electrolyte solution can be more uniform through the stirring rod, electrode passivation can be effectively prevented, the electrode activity can be kept, and therefore the reaction efficiency is improved.

The invention discloses a titanium alloy surface cobalt-based tungsten carbide coating grinding treatment method and a titanium alloy surface cobalt-based tungsten carbide coating grinding treatment device, and belongs to the field of metal hardness coating grinding of aircraft manufacturing technics.A positive electrode is applied to a grinding wheel with the surface provided with a metal bonding agent, and negative electrodes are applied to the outer surface of the grinding wheel with the surface provided with the metal bonding agent at intervals; positive electrode voltage applied to the grinding wheel and negative electrode voltage applied to the outer surface of the grinding wheel are set; the electrolytic effect is achieved by applying voltage to the grinding wheel, a hard metal bonding agent on the surface layer of the grinding wheel generates a passivation insulating film layer capable of containing a large amount of fine grinding materials on the surface of the grinding wheel, the grinding wheel is continuously sharpened through dynamic balance of the passivation insulating film layer on the electrolytic inhibition effect, and grinding wheel abrasive particles obtain the constant protruding amount; therefore, the stable and controllable grinding process is achieved, and the problems that in an existing method, pure mechanical grinding is adopted, the grinding precision of the surface of the cobalt-based tungsten carbide coating is low, and surface quality damage is large are solved. The method has the characteristic of eliminating grinding failure caused by abrasion of the granularity of the grinding wheel.

The invention belongs to the technical field of extraction of lithium from oilfield brine, and discloses a purification method and system for extraction of lithium from oilfield brine and high-impurity lithium-rich liquid. The purification method comprises the following steps: step 1, adding a sodium hydroxide solution into the high-impurity lithium-rich liquid to adjust the pH value, then adding a sodium carbonate solution, carrying out stirring reaction, and carrying out plate-frame pressure filtration to obtain filter residues and filtrate; step 2, performing ceramic ultrafiltration on the filtrate to obtain produced water and concentrated water, and returning the concentrated water to the step 1 to participate in the stirring reaction again; and step 3, regulating the pH value of the produced water with hydrochloric acid, using the regulated produced water as an adsorption stock solution, and adsorbing and desorbing the adsorption stock solution with an aluminum adsorbent to obtain a purified lithium-rich solution. According to the method, aiming at the situation that a large amount of divalent metal ion impurities such as calcium and manganese are contained in the oil field brine lithium extraction lithium-rich liquid, after preliminary impurity removal is carried out through chemical precipitation, deep impurity removal is carried out in combination with ceramic ultrafiltration and the aluminum adsorbent, the service life of the ceramic ultrafiltration and the aluminum adsorbent can be effectively prolonged, and the recycling of ceramic ultrafiltration concentrated water can also improve the yield of lithium ions.

The invention discloses a device for preparing chloroauric acid through an electrolytic method, and particularly relates to the technical field of chloroauric acid preparation. The electrolytic preparation device for the chloroauric acid comprises a preparation pool, liquid discharge pipes are arranged on the two sides of the lower portion of the front end of the preparation pool, a central partition plate is arranged in the middle of the interior of the preparation pool, a flange plate frame is arranged in the central partition plate, and an anion exchange membrane is arranged in the flange plate frame; a reference electrode is arranged on one side of the anion exchange membrane, an anode plate is arranged on one side of the reference electrode, a cathode plate is arranged on the other side of the anion exchange membrane, connecting frames are arranged above the anode plate and the cathode plate, and a passivation cleaning mechanism is further arranged above the anode plate. And through the passivation cleaning mechanism, the problems that when the voltage in the groove of an existing preparation device rises to 1.30 V, the surface of an Au positive electrode is passivated, the positive electrode needs to be taken out to be washed or inhibited, and the electrolytic preparation efficiency is affected are solved.

The invention relates to the technical field of chemistry and chemical engineering, and particularly discloses a production process of citric acid type polycarbonate polyether polyol and a real-time prediction method of reaction time, the production process is carried out in a tube nest reaction device, citric acid is prevented from passivating an activation center of a catalyst in a partitioned premixing mode, and the reaction time of the citric acid type polycarbonate polyether polyol is shortened. And performing real-time monitoring and fine-grained time sequence analysis on the density of the material by adopting an artificial intelligence technology in the reaction process, so that the residual reaction time is intelligently predicted based on the time sequence dynamic correlation change characteristic of the density of the material. In this way, the reaction endpoint can be predicted in advance, and over-reaction or incomplete reaction can be effectively avoided, so that the production efficiency and the product quality are improved, and the method is suitable for industrial-scale production.

The invention discloses a lithium-rich manganese-based positive electrode material, a preparation method thereof and a lithium ion battery, and the method comprises the following steps: mixing and dissolving a manganese source, a cobalt source and a lithium source to obtain a metal salt solution; adding organophosphorus sulfide, a complexing agent and a dispersing agent, and reacting to obtain a precursor solution; adding a lithium hydroxide solution, and aging after precipitation reaction; carrying out heat treatment, washing and drying on the aged precipitate; and mixing the dried precipitate with a lithium source, and carrying out segmented sintering to obtain the lithium-rich manganese-based positive electrode material. According to the lithium-rich manganese-based positive electrode material, the preparation method thereof and the lithium ion battery provided by the invention, cobalt and lithium form a nano-scale dynamic interface in the material, so that migration of cobalt and lithium ions can be adjusted in different electrochemical states, and a passivation phenomenon after doping in the prior art is avoided; and phosphorus-sulfur groups are introduced into a material system, so that the lattice structure of the material can be effectively stabilized, and the conductivity of the material is improved by improving the electron and ion transmission efficiency.

The invention relates to the technical field of latex production equipment, and discloses a full-automatic intelligent scraper and a rubber film rotary drum, the full-automatic intelligent scraper comprises a bearing seat, and a knife holder is arranged on the bearing seat; a scraper body is fixed on the arc section of the scraper holder through a sunk screw; a shaft seat is arranged on the arc section of the tool apron, a first shaft rod is rotationally connected to the shaft seat, a shaft sleeve is rotationally connected to the first shaft rod, a guide plate is arranged on the shaft sleeve and sequentially composed of a duckbilled part, a slope section and a tail raising part, the duckbilled part is buckled on the arc section, the slope section is used for being connected with the shaft sleeve, and a first spring seat is arranged on the bottom face of the tail raising part. A first spring is arranged on the first spring seat, a second spring seat is arranged at the free end of the first spring, and the second spring seat is connected with the arc section of the tool apron; according to the full-automatic intelligent scraper device system, the blowing groove is formed in the scraper body, so that a glue film is rapidly separated from the rotary drum, a gap can be reserved between the scraper body and the rotary drum, the scraper body is prevented from being passivated, and continuous production can be provided without replacing the scraper.

The embodiment of the invention relates to the field of solar cells, and provides a solar cell and a photovoltaic module, and the solar cell comprises a substrate, and the surface of the substrate is provided with metal regions and non-metal regions which are alternately arranged; the semiconductor doping layer is located on the surface, corresponding to the metal region, of the substrate, and P-type doping elements are arranged in the semiconductor doping layer; the first tunneling dielectric layer is positioned on the surface of the substrate corresponding to the non-metal region; the first polycrystalline silicon layer is located on the surface of the first tunneling dielectric layer, and aluminum elements are doped in at least part of the first polycrystalline silicon layer; the first passivation layer is located on the surface of the semiconductor doping layer and the surface of the first polycrystalline silicon layer; and the first electrode is located on the surface of the first passivation layer corresponding to the metal region, and the first electrode is electrically connected with the semiconductor doping layer. The solar cell and the photovoltaic module provided by the embodiment of the invention at least can improve the photoelectric conversion efficiency of the cell.

The invention belongs to the technical field of regenerated plastic particle processing, and particularly relates to regenerated plastic particle preheating equipment which comprises a smashing area, a heating area and a discharging area, the heating area is arranged at the top of the discharging area, and the smashing area is arranged at the top of the heating area. The meshing parts are symmetrically arranged on the two sides of the inner wall of the control box. Each meshing part is provided with a switching motor, a guide plate shell, a traction pull plate, a torque motor and a smashing roller shaft. As the crushing roll shafts on the two sides can be blocked or passivated due to the fact that plastic particles are blocked in gaps during continuous working, after crushing work is carried out for a period of time, the motor is switched to turn the crushing roll shafts on the two sides, and the crushing roll shaft without attached plastic residues on the other side is used for continuously carrying out crushing work; therefore, the continuous working time of the device is prolonged, and meanwhile the problem that the crushing roller shaft is passivated and stuck is avoided.

This invention relates to a modified zero-valent iron / biochar composite material with oxygen-rich vacancies and its application. The modified zero-valent iron / biochar composite material comprises a biochar carrier and zero-valent iron loaded on the biochar carrier. The surface of the zero-valent iron is coated with sulfur-containing iron compounds and / or boron-containing iron compounds, and the surface of the zero-valent iron contains abundant oxygen vacancies. The modified zero-valent iron / biochar composite material is specifically prepared by the following method: dispersing the biochar carrier and zero-valent iron in oxygen-free water and grinding; adding a sulfur source or boron source to the ground suspension, stirring and grinding thoroughly, and drying; subsequently soaking in a reducing solution, followed by high-temperature calcination and cooling to obtain the modified zero-valent iron / biochar composite material. Compared with the prior art, the modified zero-valent iron / biochar composite material prepared by this invention can be used synergistically with compound oxidants to achieve effective remediation of organically contaminated soil.

The utility model relates to a drinking water defluorination device and drinking water purification equipment, the drinking water defluorination device comprises a reaction container, a reaction part and an ultrasonic reactor, drinking water to be treated is introduced into a containing cavity through a water inlet end, and the reaction part is used for defluorination of the drinking water under the power-on condition. The electric flocculation reaction is carried out on the to-be-treated drinking water in the containing cavity, floccules float to the water surface in the reaction process, the treated drinking water is located below the floccules and then acts on the reaction part through the ultrasonic reactor, so that the floccules on the reaction part fall off, the surface of the reaction part can be effectively cleaned, and the service life of the reaction part is prolonged. By introducing the electric flocculation method, the process energy consumption is reduced, and meanwhile, passivation of reaction parts can be effectively prevented through the ultrasonic reactor, and the reaction rate is increased.

The present invention relates to the field of electrochemical materials, and in particular to a method for synchronously and continuously preparing a lithium iron phosphate precursor and hydrogen and its application. The preparation method uses iron metal as a working electrode and a hydrogen evolution reaction counter electrode material as a counter electrode, and electrolysis occurs in an acidic electrolyte or a neutral electrolyte to prepare hydrogen and a lithium iron phosphate precursor. The method has the advantages of low cost, high safety, good cycle performance, good reaction sustainability, and high yield.

The invention relates to preparation of graphene-loaded nano zero-valent iron and application of the graphene-loaded nano zero-valent iron in chromium-containing wastewater treatment. The preparation method comprises the following steps: preparing 60mL of a KBH4 solution with the concentration of 0.5 mol / L as a solution A and 60mL of a FeSO4. 7H2O solution with the concentration of 0.1 mol / L as a solution B, adding 0.25 g of a single-layer graphene oxide dispersion liquid into the solution B, stirring for 30 minutes, recording as a solution C, slowly dripping the solution A into the solution C, performing suction filtration separation on powder C, and drying to obtain nZVI-coated GO. The graphene is loaded with nZVI to adsorb chromium in chromium-containing wastewater, and nZVI-GO-Cr formed after wastewater treatment can be used as an auxiliary tanning agent for leather tanning or retanning sections and has good recyclability.

The invention belongs to the field of electrolytic cells, and particularly relates to a gas diffusion layer, a preparation method and application thereof and an electrode. The gas diffusion layer comprises a Ti-based gas diffusion layer substrate and a TiCN coating arranged on the surface of the Ti-based gas diffusion layer substrate. According to the technical scheme, the TiCN coating is prepared on the surface of the Ti-based gas diffusion layer substrate (Ti substrate), the obtained new gas diffusion layer can effectively prevent the Ti substrate from being passivated in the electrolyzed water environment, good conductivity is kept, the main effect is that TiCN has good conductivity, high hardness and oxidation resistance, and after the TiCN is prepared into the coating, the corrosion resistance of the coating is greatly improved. The high-voltage high-voltage hydrolysis film can be kept stable in a high-voltage hydrolysis environment, and a Ti substrate on the inner layer is protected.

The invention relates to the technical field of latex production equipment, and discloses a fully automatic intelligent scraper and a film drum, comprising a bearing seat, on which a knife seat is arranged; a scraper body is fixed to the circular arc section of the knife seat by a countersunk screw; an axle seat is arranged on the circular arc section of the knife seat, a first axle rod is rotatably connected to the axle seat, a shaft sleeve is rotatably connected to the first axle rod, a guide plate is arranged on the shaft sleeve, the guide plate is composed of a duckbill portion, a slope section, and a tail portion in sequence, the duckbill portion is buckled on the circular arc section, the slope section is used to connect the shaft sleeve, a first spring seat is arranged on the bottom surface of the tail portion, a first spring is arranged on the first spring seat, a second spring seat is arranged at the free end of the first spring, and the second spring seat is connected to the circular arc section of the knife seat; the invention arranges an air blowing groove on the scraper body to enable rapid separation of the film from the drum, so that a gap can be left between the scraper body and the drum to avoid passivation of the scraper body, and a fully automatic intelligent scraper device system for continuous production without replacing the scraper can be provided.

The application discloses an electrochemical granulation electrode deintercalation lithium extraction membrane stack electrolysis equipment, which comprises an electrolysis tank and an electrode assembly; the electrolysis tank comprises a first side plate, a piece of side plate rubber pad, a plurality of tank bodies, another piece of side plate rubber pad, a second side plate and a first tank body rubber pad, an anion membrane and a second tank body rubber pad arranged in sequence between two adjacent tank bodies; the tank bodies are divided into anode tanks and cathode tanks, the anode tanks and the cathode tanks are arranged alternately in an X direction from the first side plate to the second side plate, and the number of the anode tanks is equal to that of the cathode tanks; and an elastic porous pad is laid on the inner cavity bottom wall of the tank body. The electrolysis equipment can realize efficient extraction of lithium resources in salt lake brine, has the advantages of high lithium recovery rate and current efficiency, and is convenient to install, maintain and observe and monitor in the lithium extraction process.

The application discloses an intelligent network operation and maintenance management method based on user behavior analysis and belongs to the technical field of network operation and maintenance management. The method obtains original behavior log data of a user terminal, performs double alignment of a behavior baseline and an abnormal deviation degree to obtain a user behavior time sequence feature sequence; a user behavior analysis model including an input gating layer, a behavior memory evolution layer and an output mapping layer is constructed, the input gating layer splits the feature sequence into a steady-state behavior component and a transient behavior component; the behavior memory evolution layer differentiates and stores and fuses the two components through a competition mechanism to generate a behavior evolution state field; the output mapping layer performs nonlinear decoupling on the behavior evolution state field to output a user behavior abnormal risk measure and a behavior prediction path; and a potential risk node and an expected behavior trajectory are determined according to the user behavior abnormal risk measure and the behavior prediction path, and a dynamic access control strategy is generated. The method can improve the abnormal behavior recognition accuracy and the timeliness of dynamic adjustment of access control.

The application relates to the technical field of insulator manufacturing, and discloses a roughing device for an electric porcelain insulator blank, which comprises a rack, a mold is rotationally connected to the upper surface of the rack, and a lifting frame is slidably connected to the outer surface of the rack; an adjusting shaft is rotationally connected to the outer surface of the lifting frame, a first roughing cutter and a second roughing cutter are fixedly connected to one end of the adjusting shaft, and a first adjusting assembly is arranged at the other end of the adjusting shaft and used for controlling the rotating angle of the adjusting shaft. The roughing device for the electric porcelain insulator blank can effectively solve the problem that, when the cutting amount of the blank is large, the cutting resistance of the roughing cutter is large, the roughing cutter vibrates, scratches, unevenness, burrs and other defects appear on the surface of the blank, the surface flatness is reduced, the size precision of the electric insulator blank is reduced, and the electrical performance and appearance of the insulator are affected.

The utility model discloses a production equipment device for an inorganic precoated plate, which belongs to the technical field of production and processing of the inorganic precoated plate, and comprises a processing table, the left side of the processing table is communicated with a calandria, the left side of the top of the processing table is bolted with a support rod, the top of the support rod is bolted with a bearing plate, and the bearing plate is arranged on the processing table. By arranging the machining table, the rack pipe, the supporting rod, the bearing plate, a plate, a support, a top plate, a positioning assembly, an electric push rod, a lifting frame, a motor, a cutting blade, a grinding assembly and a partition plate, the plate is placed on the bearing plate at the top of the supporting rod, then the positioning assembly located at the bottom of the top plate is started to automatically move downwards, and therefore the plate is automatically positioned; and in the process, a proper amount of water is added into the water drum, then an electric push rod is started to push a motor in the lifting frame to move downwards, and then the started motor drives a cutting blade to achieve cutting use of the plate.

The invention discloses a preparation method and application of a sulfur passivation-resistant coupled energy-saving hydrogen production difunctional electrocatalyst, and relates to the technical field of preparation of energy-saving hydrogen production electrocatalysts, and the preparation method comprises the following steps: pretreatment of foamed nickel, hydrothermal reduction preparation of a MoSe2 / NiSex / NF catalyst, and coupled application of SOR and HER. According to the preparation method, a porous network and a multi-dimensional electron transfer path which are mutually connected in foamed nickel are utilized, and a high-temperature and high-pressure hydrothermal reduction method is adopted to anchor and grow a mixed phase component on a conductive substrate foamed nickel framework, so that effective compounding of multi-phase components is realized, and mass transfer and charge transfer are enhanced; the conductivity and the electrocatalytic activity are further improved; the prepared MoSe2 / NiSex / NF not only has the sulfur phobic characteristic, but also has selectivity on S < 2-> conversion, so that a polysulfide product instead of elemental sulfur is generated in the electrooxidation process, and the electrocatalytic activity of the MoSe2 / NiSex / NF in the long-term SOR process is maintained, thereby preparing the difunctional electrocatalyst with good conductivity, high catalytic activity and sulfur passivation resistance.

The utility model relates to the field of conductive slip ring assembly, in particular to a portable conductive slip ring assembly auxiliary tool, which comprises a storage hopper, a glue outlet pipe, a sealing cover, a gluing mounting component and the like, the lower side of the storage hopper is connected with the glue outlet pipe, and the sealing cover is clamped on the left side of the middle lower part of the storage hopper; the storage hopper is provided with a gluing installation assembly used for conducting gluing and component installation when the conductive slip ring is assembled. By moving the button, the piston moves to extrude glue to flow out for gluing, and then the screw is contacted with the conductive slip ring, so that the screwdriver is unfolded and then the screw is rotated and tightened for fixation, the screwdriver can be directly rotated and unfolded to tighten the screw for auxiliary assembly after gluing is carried out during assembly of the conductive slip ring, the operation is simple, tools do not need to be replaced, and the working efficiency is improved. The device is convenient to carry and use, improves the assembly efficiency, reduces the assembly cost, and is convenient to use.

The invention provides an environment-friendly pulse electroplating solution. The environment-friendly pulse electroplating solution is prepared from the following components: 65 to 85 parts of copper sulfate pentahydrate, 80 to 120 parts of sulfuric acid, 0.4 to 0.8 part of sodium chloride, 0.6 to 0.9 part of triammonium citrate, 0.6 to 1.0 part of polyvinylpyrrolidone, 0.3 to 0.6 part of polyvinyl alcohol, 0.5 to 1.2 parts of nonylphenol polyoxyethylene ether, 0.2 to 0.5 part of sodium sulfosuccinate and 0.1 to 0.3 part of castor oil polyoxyethylene ether. Through synergistic cooperation of all the components, the electroplating liquid has good deep plating capacity and electroplating rate and is environmentally friendly.

The invention belongs to the technical field of photoelectrocatalysis and environmental governance, and particularly relates to a zinc cadmium sulfide / titanium dioxide composite material, a preparation method thereof and application of the zinc cadmium sulfide / titanium dioxide composite material as a composite photoanode in hydrogen sulfide photoelectrocatalytic decomposition. The zinc cadmium sulfide / titanium dioxide composite material provided by the invention comprises an anatase phase TiO2 nanotube array arranged on the surface of a conductive substrate; and the CdZnS nano-particles are deposited on the anatase phase TiO2 nano-tube array. The zinc cadmium sulfide / titanium dioxide composite material provided by the invention is applied to hydrogen sulfide photoelectrocatalytic decomposition as a composite photo-anode, has high catalytic activity, high stability and high product selectivity, realizes synchronous H2 generation and H2S detoxification, and does not need complex separation steps. According to the invention, a novel material design strategy is provided for a high-performance PEC-H2S conversion system, and a technical insight is provided for green resource utilization of sulfide pollutants.

The invention provides a method for prolonging the cycle life of a conversion reaction positive electrode battery based on large-current pulse activation. According to the invention, a conventional low-current constant-current activation mode is replaced by a specific charge-discharge system activation method for the conversion reaction positive electrode battery; a conversion reaction positive electrode is repeatedly stimulated, a product is regulated and controlled to be uniformly nucleated, a stable reaction interface is formed, a homogeneous reaction of the product is smoothly realized, a diffusion barrier of a two-phase product reaction is reduced, and a discharge product is promoted to be fully converted into an active substance material; and the volume expansion of the pole piece is effectively inhibited, so that the problems of capacity attenuation and unstable cycle performance of a conversion reaction positive electrode battery caused by inactivation, falling and passivation of active substances are improved. Besides, compared with a traditional low-current activation system, the charging and discharging system provided by the invention shortens the time and can promote the battery to quickly reach the optimal performance state, so that the commercialization value is further improved for the application of the battery.

The invention discloses negative electrode lead paste for enhancing the low-temperature performance of a lead-acid storage battery and a preparation method of the negative electrode lead paste, and belongs to the technical field of lead-acid storage batteries. The negative electrode lead paste is prepared from the following components in parts by weight: 100 parts of lead powder, 0.1 to 0.2 part of barium sulfate, 0.01 to 0.05 part of humic acid, 0.01 to 0.005 part of carbon black, 0.005 to 0.02 part of short fiber, 1 to 10 parts of water and 0.01 to 0.05 part of UiO at C expanding agent. According to the present invention, the UiO-C expanding agent having the metal organic frame structure is added, and the advantages of excellent thermal stability, large specific surface area and low internal resistance of the UiO-C expanding agent are utilized to replace the traditional lignin expanding agent, such that the internal resistance of the lead-acid storage battery can be reduced, and the low temperature performance of the lead-acid storage battery can be improved;

This application provides a highly sensitive and interference-resistant microsensor for ethylene monitoring, comprising a housing and a working electrode, a reference electrode, and a protective electrode disposed within the housing. One end of the housing is a detection tip, and the other end is a mounting end. The detection tip is sealed and filled with a breathable membrane layer. The housing is filled with a composite ionic electrolyte. The detection end of the working electrode is coated with a Pd-based doped composite nanolayer, which is applied to the detection end of a platinum wire substrate using a sputtering process. This application, through improvements to the electrode material, nanocoating process, and electrolyte system, effectively enhances the detection accuracy of the microsensor for ethylene detection, achieving nano-molar level accuracy, while also improving its interference resistance, coating stability, and service life.

The invention belongs to the technical field of veterinary instruments, and particularly relates to a clinical vaccination auxiliary device and method for veterinarians, the clinical vaccination auxiliary device comprises a vaccination gun and a needle tube mounted at the end of the vaccination gun, the vaccination gun is provided with a bottle seat for placing a vaccine bottle, and the bottle seat is provided with a puncture needle for puncturing the vaccine bottle; the adjusting mechanism comprises a sleeve disc which is fixedly arranged on the vaccination gun in a sleeving manner, and a connecting frame with a sliding plate is fixedly mounted on the sleeve disc; through the design of a connecting frame, a sliding plate, an adjusting plate and an adjusting groove, the length of the needle tube entering the poultry body is controllable, and the length of the needle tube penetrating into the poultry body is rapidly adjusted according to the actual requirements of different poultry. Therefore, the device adapts to the body types, day ages, fat and thin degrees and injection site differences of different poultry, and avoids the situations that vaccines cannot be effectively absorbed and immune fails due to too shallow needle insertion, or internal organs, blood vessels and nerves are damaged due to too deep needle insertion, and stress and tissue damage of the poultry is aggravated.

The invention relates to the technical field of garment processing, and provides a discharging machine for garment processing, which comprises a processing table, two sides of the top end of the processing table are fixedly connected with a first roller and a fourth roller respectively, and the top end of the processing table is fixedly connected with a second roller and a third roller on the sides, close to each other, of the first roller and the fourth roller; according to the waste cutting device, the motor is started and drives the rotating shaft to rotate, the rotating shaft drives the second gear and the rotating rod to rotate through the first gear and the first rotating wheel, the second gear drives the discharging roller to rotate, the discharging roller pulls waste falling from the discharging opening after cutting, and therefore the situation that the waste is hung on cloth due to incomplete cutting is avoided; the rotating rod drives the moving sleeve to reciprocate, the moving sleeve drives the push rod to move, the push rod drives the cutting knife to reciprocate in the moving groove, and when the cutting knife completely extends out, the cutting knife makes contact with the discharging opening in the opposite side, so that waste which is not completely cut and cannot be pulled and separated by the discharging roller can be cut, and the discharging efficiency is improved.