16results about How to "Reduce join" patented technology

The invention discloses a room-temperature-cured high-strength high-thermal-conductivity and high-electric-conductivity silver adhesive which is characterized by comprising the following components in parts by weight: 100 parts of hydroxyl-terminated polydimethylsiloxane, 2-6 parts of carbon nanotubes, 200-450 parts of conductive particles, 1-5 parts of a silane coupling agent, 5-12 parts of a cross-linking agent and 0.5-5 parts of a catalyst. The invention further discloses a preparation method of the room-temperature-curing high-strength high-thermal-conductivity and high-electric-conductivity silver adhesive. The room-temperature-cured high-strength high-thermal-conductivity and high-electrical-conductivity silver adhesive has the advantages of short curing time, low volume resistivity, high bonding strength and good electrical conductivity. The product is tested after being placed in an outdoor environment for 12 months for a long time, the volume resistivity and the bonding strength of the conductive silver adhesive disclosed by the invention are hardly influenced, and the conductive silver adhesive shows excellent weather resistance; the product has high stability and can be used for a long time.

The invention relates to the field of daily chemistry, and discloses a small-particle-size positive charge conditioning emulsion and preparation and hair care application thereof, and the small-particle-size positive charge conditioning emulsion comprises low-viscosity silicone oil, a nonionic emulsifier and a small-molecule cationic quaternary ammonium salt. A small-particle-size emulsion of low-viscosity silicone oil is prepared by utilizing a small-molecular cationic conditioner which is commonly used for hair washing and caring and has conditioning and emulsifying properties, even nano-scale silicone oil is prepared, and the low-viscosity silicone oil does not have the condition that the hair feels heavy after a high-viscosity silicone oil conditioner in the prior art is applied to specific people. The emulsion has small particle size and uniform deposition, and the surface positive charges of the emulsion improve the stability of the emulsion and also improve the deposition property of the low-viscosity silicone oil to a certain extent.

The invention discloses an efficient pretreatment system and method for kitchen waste, and the pretreatment system comprises a material receiving and conveying unit, a first-stage hydraulic pulping and sorting unit, a second-stage hydraulic pulping and sorting unit, a solid-liquid separation unit, a desanding unit, an oil-water separation unit and an impurity conveying unit. According to the system, kitchen waste can be efficiently crushed into fine slurry through the two-stage hydraulic pulping and sorting unit, the pulping effect and the impurity removal rate are improved, organic matter loss is reduced, the fine slurry is subjected to deslagging and refining through the solid-liquid separation unit and the sand removal unit in sequence, follow-up equipment blockage or damage can be avoided, the operation safety of the system is improved, and the service life of the system is prolonged. According to the system, solid-liquid separation and oil-water separation of the kitchen waste can be effectively realized, so that convenience is provided for subsequent resource utilization, and the resource utilization efficiency is improved; when the system is applied to kitchen waste treatment, the pulping effect can be improved, follow-up treatment is facilitated, the follow-up treatment process is simplified, and the kitchen waste treatment speed and efficiency are improved.

The invention relates to a catalyst for thermally stably degrading VOCs (volatile organic compounds) as well as a preparation method and application thereof, in particular to the field of VOCs purification, and the catalyst comprises a substrate as well as an auxiliary agent and an active component which are arranged on the substrate, the auxiliary agent comprises a first auxiliary agent and a second auxiliary agent; the first auxiliary agent comprises a cobalt-containing auxiliary agent and / or an iron-containing auxiliary agent; according to the catalyst provided by the invention, the specific first auxiliary agent and the second auxiliary agent are introduced into the catalyst and are matched, so that oxygen molecules can be quickly adsorbed and activated in the VOCs catalytic purification process and do not form a catalytic synergistic center with active components, and the removal effect of the VOCs is improved; and long-term stable operation of the catalyst under severe conditions of high temperature, high humidity and the like is facilitated.

The invention relates to the technical field of sewage treatment, in particular to a filtering device for waste acid water treatment. The neutralization reaction mechanism comprises a first plate fixedly connected to the inner wall of the treatment box, a hollow rod is rotatably connected to the middle of the first plate in a sealed and penetrating mode, a plurality of hollow plates are fixedly connected to the inner wall of the hollow rod, a plurality of liquid outlet holes are formed in the inner walls of the hollow plates, and a round cavity is formed in the inner wall of the first plate; a plurality of liquid inlet holes are formed in the inner wall, located in the circular cavity, of the hollow rod, a liquid pump is fixedly connected to the side wall of the treatment box, and the output end of the liquid pump communicates with the inner wall of the circular cavity through a liquid outlet pipe. The neutralization reaction mechanism is arranged, external alkaline liquid flows out through a plurality of liquid outlet holes after passing through a liquid inlet pipe, a liquid pump, a liquid outlet pipe, a round cavity, a plurality of liquid inlet holes, a hollow rod and a hollow plate, and neutralization reaction treatment is carried out on waste acid water in the treatment box.

The application relates to the field of batteries and discloses a solid-state electrolyte precursor and a lithium metal battery. The solid-state electrolyte precursor is characterized in that the solid-state electrolyte precursor comprises a ternary eutectic solvent, an ether monomer, a fluorine ether diluent and a lithium salt; the ternary eutectic solvent comprises lithium bistrifluoromethylsulfonylimide, a Lewis acid and a Lewis base; and the molar ratio of the lithium bistrifluoromethylsulfonylimide and the Lewis acid is 1:0.01-5. The solid-state electrolyte precursor contains a specific ternary eutectic solvent, a lithium metal battery containing a deep eutectic solid-state electrolyte obtained by in-situ polymerization of the solid-state electrolyte precursor has good interface stability, the generation of lithium dendrites is inhibited, the lithium metal cycle stability is high, and the safety performance is more excellent.

The utility model provides industrial wastewater catalytic oxidation equipment, and relates to the technical field of wastewater catalytic oxidation. The water inlet pipe is fixed and communicated with the surface of the catalytic box, so that wastewater is added into the catalytic box; the drainage pipe is fixed and communicated with the surface of the catalysis box and is used for discharging the wastewater in the catalysis box; the feeding device is arranged on the surface of the catalysis box, so that a catalyst is uniformly added into the wastewater; the auxiliary device is arranged on the surface of the feeding device, so that a catalyst is quantitatively added, the feeding device comprises a water tank, the water tank is fixedly connected with a catalysis box, the surface of the water tank is fixedly communicated with a water pump, the output end of the water pump is fixedly communicated with a hose, and the surface of the catalysis box is fixedly connected with a servo motor. And the output end of the servo motor is fixedly connected with a screw rod. According to the utility model, the problem that the efficiency of wastewater catalysis is low due to the fact that a catalyst is directly added into the catalysis box and is not easy to disperse is solved.

The invention discloses a method for preparing precoated sand by using cast steel waste sand, and belongs to the technical field of casting, and the method comprises the following steps: preparing regenerated sand by using the cast steel waste sand, heating the regenerated sand, sequentially adding alumina sol, phenolic resin, urotropine and calcium stearate into the heated regenerated sand in a stirring environment, and mixing to obtain the precoated sand. The method has the beneficial effects that the steel casting waste sand is used for preparing the reclaimed sand, so that the steel casting waste sand is recycled, the production cost is saved, and meanwhile green production is achieved; and the prepared reclaimed sand has the excellent properties of lower expansion coefficient, lower acid consumption value and the like, and can be matched with other components of the precoated sand to generate a better effect during production of the precoated sand.

The invention provides a flame-retardant nylon composite material and a preparation method thereof, and relates to the technical field of high polymer materials. The flame retardant compounded by the bis (aziridinyl) lanthanum hypophosphite and the environment-friendly glassy / pottery smokeless halogen-free flame retardant is selected, the bis (aziridinyl) lanthanum hypophosphite generates a compact and stable carbonized layer at a high temperature, the environment-friendly glassy / pottery smokeless halogen-free flame retardant forms a ceramic-like protective layer, the bis (aziridinyl) lanthanum hypophosphite and the environment-friendly glassy / pottery smokeless halogen-free flame retardant cooperate to protect the nylon material, and the nylon material has good flame retardance; moreover, the two can keep good structural stability and chemical stability at high temperature, so that the durability of the flame-retardant effect is ensured, and the safety of the material is improved. In addition, the composite synergist has a synergistic effect on the flame retardant, the modified expanded graphite can reinforce and repair a carbonized layer, the modified carbon nanotubes can reduce heat accumulation, and melamine polyphosphate can further resist flame, and the synergistic effect of the three can reduce the viscosity of the material, promote uniform dispersion of the flame retardant in nylon and improve the processability.

The present invention relates to the technical field of sewage treatment, and specifically to a filtering device for treating waste acid water, comprising: a treatment box; a neutralization reaction mechanism, wherein the neutralization reaction mechanism comprises a first plate fixedly connected to the inner wall of the treatment box, a hollow rod is rotatably connected to the middle of the first plate through a seal, a plurality of hollow plates are fixedly connected to the inner wall of the hollow rod, a plurality of liquid outlet holes are provided on the inner wall of the hollow plate, a circular cavity is provided on the inner wall of the first plate, a plurality of liquid inlet holes are provided on the inner wall of the hollow rod located in the circular cavity, a liquid pump is fixedly connected to the side wall of the treatment box, and the output end of the liquid pump is connected to the inner wall of the circular cavity through a liquid outlet pipe. The present invention is provided with a neutralization reaction mechanism, and the alkaline liquid from the outside passes through the liquid inlet pipe, the liquid pump, the liquid outlet pipe, the circular cavity, the plurality of liquid inlet holes, the hollow rod and the hollow plate, and then flows out through the plurality of liquid outlet holes, so as to perform a neutralization reaction treatment on the waste acid water in the treatment box.

The invention relates to a converter steelmaking slag system for increasing the content of residual manganese in molten steel and a using method thereof, and belongs to the technical field of steelmaking processes. The slag system comprises the following components in percentage by mass: less than or equal to 4.0% of MgO, less than or equal to 4.5% of MnO, 40-50% of CaO, 12-18% of SiO2, less than or equal to 15% of FeO, Al2O3, CaF2, S and P2O5. By reasonably designing the components of the slag system, the addition of the slag making material light-burned dolomite containing the MgO component is reduced, MgO and MnO are prevented from generating a high-melting-point phase, and the high-melting-point phase is enriched in the slag to form a solid phase, so that MnO can be smoothly reduced by CO to enter the molten steel, and the content of residual manganese in the molten steel is increased.

The utility model relates to the technical field of food supply chains, in particular to an unfreezing device convenient for internal cleaning, which comprises a box body, a cleaning component is arranged in the box body, and a liquid preparation component is mounted at the top of the box body; the cleaning assembly comprises a cleaning rod, a sliding block is welded to the inner wall of the cleaning rod, a lead screw is in threaded connection with the interior of the sliding block, a first gear is installed at one end of the lead screw, a second gear is meshed with the bottom of the first gear, and a rotating disc is welded to the outer wall of the second gear. An output shaft of a first motor is mounted on one side of the first gear; according to the improved unfreezing device, the cleaning assembly is additionally arranged in the box body, after unfreezing is completed, the box body can be automatically cleaned, manual cleaning is not needed, the cleaning efficiency is higher, a small amount of cleaning liquid and clean water are added multiple times when the clean water and the cleaning liquid are added through the liquid preparation assembly, the adding proportion of each time is consistent, and the unfreezing efficiency is improved. And too much or too little cleaning liquid is avoided, and the cleaning effect is better.

The invention relates to the technical field of positive electrode materials, in particular to a single-crystal positive electrode material, a preparation method thereof and a secondary battery. The preparation method of the single-crystal positive electrode material provided by the invention comprises the following steps: S1, laying molten salt on the surface of a precursor material to obtain a sintering raw material; s2, sequentially carrying out first sintering and crushing on the sintering raw material to obtain a crushed material; and S3, mixing the crushed material with a residue removal agent, and carrying out second sintering to obtain the single-crystal positive electrode material. According to the preparation method of the single-crystal positive electrode material, mutual melting and growth of primary crystal grains are promoted by utilizing excessive accumulation of the molten salt in a local area and spontaneous diffusion behaviors of the molten salt during melting, so that a small-particle-size precursor material can form single-crystal particles at a relatively low temperature; and precursor materials with medium and large particle sizes form single crystal particles at a conventional single crystal sintering temperature, so that the use of a fluxing agent and the addition of excessive molten salt are reduced.

The invention belongs to the technical field of environment detection (monitoring), and particularly relates to an extraction reagent for phenolic compound extraction, a purification method and application. The detection method comprises the following steps: (1) purifying and preparing a dichloromethane-ethyl acetate mixed extraction reagent, (2) carrying out acid-base purification on a water sample, (3) taking the water sample, carrying out liquid-liquid extraction, and carrying out nitrogen blowing concentration on the extracted liquid; (4) adding acetone, an alkali solution and a pentafluorobenzyl bromide reagent into the extract liquor obtained in the step (3), carrying out derivatization, carrying out nitrogen blowing concentration after derivatization, and fixing the volume; and (5) detecting by using a gas chromatography-mass spectrometry method. By purifying the dichloromethane-ethyl acetate mixed extraction solvent and purifying the sample, the side reaction in the derivation process is effectively reduced. The invention provides a novel high-purity reagent preparation and matched derivation method for detecting phenolic compounds in water.

The invention discloses an industrial waste gas treatment device and a method thereof.The industrial waste gas treatment device comprises a treatment tower, treatment liquid is stored at the bottom of the treatment tower, a rotatable spraying shaft is arranged in the middle of the treatment tower, a plurality of spraying pipes used for spraying the treatment liquid are arranged on the spraying shaft, a plurality of vertical circulating pipes are further arranged at the bottom of the treatment tower, and a plurality of filtering holes are formed in the circulating pipes; a conveying mechanism for conveying the treating fluid filtered by the filtering holes into the spraying pipe is arranged in the treating tower, a sludge scraping ring plate capable of moving up and down is further arranged on the circulating pipe, a plurality of scraping plates are arranged on the inner side of the sludge scraping ring plate, and an adsorption filler for adsorbing and separating the sprayed gas is further arranged in the treating tower. Through the design of the spraying pipe and the spraying shaft, the rotary spraying of the spraying pipe can be realized through the rotation of the spraying shaft, so that the spraying distribution of the treatment liquid in the treatment tower is more uniform, the contact probability of the treatment liquid and industrial waste gas is effectively improved, and the overall treatment efficiency is improved.

The invention relates to the technical field of waste gas treatment, in particular to a treatment technology suitable for industrial waste gas containing arsenic hydride, and discloses a method for removing arsenic hydride in industrial flue gas, which comprises the following steps: adding a copper sulfate solution with a certain concentration into a flue gas washing solution according to a certain proportion; arsenic hydride in the industrial flue gas is promoted to react with copper sulfate in the washing liquid in the spray tower, and then solid-liquid separation is carried out on the reaction product in the clarifier. And supplementing a certain amount of copper sulfate solution to the supernate, then returning the supernate to the flue gas scrubbing solution for recycling, and conveying the lower solid waste to a wet arsenic process or a pyrogenic process copper smelting system. According to the method, most of arsenic hydride in the industrial flue gas can be effectively removed and recycled, and is converted into a copper-containing intermediate material, so that the pollution of the arsenic hydride to the environment is solved, the environmental protection risk of an enterprise is reduced, and the environmental protection benefit of the enterprise is greatly improved.