13results about How to "Increase response rate" patented technology

The utility model discloses a waste incineration boiler SNCR (selective non-catalytic reduction) denitration spraying system which comprises a first spray gun, a second spray gun and a K-type thermocouple, and the first spray gun and the second spray gun are connected to a urea solution supply system and a compressed air supply system through pipelines; the multiple first spray guns are arranged on the upper portions of the two side walls of a second channel of the incineration boiler respectively, the multiple second spray guns are arranged on the upper portion of the rear wall of the second channel, and the multiple first spray guns and the multiple second spray guns are located on the same horizontal plane so as to form a spraying curtain wall covering the cross section of the second channel; the multiple K-type thermocouples are arranged on the upper portion of the rear wall and the upper portions of the two side walls correspondingly and used for monitoring the temperature nearby the first spray gun and the temperature nearby the second spray gun in real time. The device has the characteristics of convenience in operation, high denitration efficiency, convenience in reducing urea consumption and the like, and solves the problem that as the temperature of the first channel of the hearth often exceeds the optimal denitration reaction temperature, the denitration requirement cannot be met by purely arranging the spray gun in the first channel.

The invention discloses a carbon negative electrode material production device and process, and relates to the technical field of carbon negative electrode material production, the carbon negative electrode material production device comprises a heating mechanism, a rotating mechanism, a wall adhering mechanism, a ventilation mechanism and a carbon powder collecting mechanism; the heating mechanism comprises a cylinder body, a cavity is formed in the cylinder wall of the cylinder body, a heater is fixed in the cavity, and the heating mechanism is used for heating gas to react; the rotating mechanism is connected with the heating mechanism and used for driving the wall attaching mechanism to rotate and switch stations. Natural gas is fully attached to a heating position in an extrusion wall attaching mode, the natural gas fully reacts, the reaction degree of the natural gas is improved, the phenomenon of incomplete reaction of the natural gas is avoided, the heating position is cleaned, it is avoided that carbon powder is left at the heating position to affect heating, and waste caused by carbon powder left at the heating position is reduced; and meanwhile, gas and solid are separated by utilizing the characteristics of reactants, so that dust is prevented from remaining in the pipeline when the gas and the dust are mixed and discharged.

The invention provides non-isocyanate polyurea and a preparation method thereof, water-based non-isocyanate polyurea and a preparation method thereof, and an anticorrosive coating, a waterproof coating and a fireproof coating containing the water-based non-isocyanate polyurea. The preparation method of the non-isocyanate polyurea comprises the following steps: (1) mixing alkali metal alkoxide and ionic liquid to obtain an alkali metal alkoxide / ionic liquid composite catalyst; and (2) in the presence of an alkali metal alkoxide / ionic liquid composite catalyst, polyether amine and an organic solvent are mixed, then carbon dioxide is introduced for a reaction, the non-isocyanate polyurea is obtained, and polyether amine is amino-terminated polyoxypropylene diamine or amino-terminated polyoxypropylene triamine with the number-average molecular weight ranging from 230 to 5000. According to the method, the non-isocyanate polyurea can be prepared at a high reaction rate through a simple process route, and a product obtained by taking the non-isocyanate polyurea obtained by the preparation method as a raw material has excellent application performance (including mechanical performance, water resistance, fire resistance and the like).

The utility model discloses an efficient leaching device for fly ash containing valuable elements, which relates to the technical field of fly ash treatment and comprises a reaction kettle, a liquid outlet is arranged at the lower end of the reaction kettle, a cover plate is arranged at the upper end of the reaction kettle, a lifting component is arranged between the reaction kettle and the cover plate, and a heating component is arranged in the reaction kettle. A detachable filtering barrel is arranged at the lower end of the cover plate, a stirring assembly is arranged in the detachable filtering barrel, and an acid liquor supply assembly is arranged on the cover plate. According to the utility model, the heating assembly and the stirring assembly are matched, the temperature effect, the spiral stirring blades and the open holes are utilized to enhance the up-down convection of mixed liquor, and the L-shaped scraper in the stirring assembly cleans the barrel wall of the detachable filter barrel, so that the reaction rate of acid liquor and fly ash is improved together; and the acid liquor repeatedly and fully reacts with newly added fly ash, so that the utilization rate of the acid liquor is improved, and the subsequent neutralization cost is reduced.

The invention discloses a method for preparing a wind turbine blade recycled fiber reinforced polyolefin masterbatch. A method for preparing a wind turbine blade recycled fiber reinforced polyolefin masterbatch comprises the following steps: S1: low temperature plasma treatment of wind turbine blade recycled fiber; S2: preparation of silane coupling agent solution; S3: soaking and aging; S4: drying; S5: low temperature plasma treatment; S6: DCP dissolution; S7: spraying and stirring; S8: dissolving DCP and MAH; S9: spraying DCP and MAH solution in polyolefin; S10: granulation to obtain wind turbine blade recycled fiber reinforced polyolefin masterbatch. The invention is conducive to overcoming the defects of the prior art that the wind turbine blade recycled fiber cannot be well utilized and the performance is insufficient when preparing composite materials.

The utility model provides a kind of effectively improve reaction kettle device of triethylaluminium production efficiency, it solves the problems, such as aluminium powder reaction rate reduction and stirring system abrasion, it includes reaction kettle main part, reaction kettle main part inside rotation is installed with the stirring shaft extending along axial direction, fixed sleeve is installed between the stirring shaft lower end and reaction kettle main part, stirring disc connected with stirring shaft is rotationally installed at the bottom of reaction kettle main part, stirring blade is installed on stirring disc and adjusting assembly is arranged between stirring blade and stirring disc, high-pressure circulating pump is connected to the bottom and top of reaction kettle main part by circulation pipe.The utility model has the advantages of good reaction effect, stable structure and the like.

The invention belongs to the field of chemical engineering, particularly relates to the field of synthesis of organic silicon, and particularly relates to a method for catalyzing a hydrosilylation reaction between various silane or siloxane containing silicon-hydrogen bonds and unsaturated hydrocarbon through ball milling. The invention provides a preparation method of an Rh-Ni-Cu cladding layer grinding ball. The preparation method comprises the following steps: grinding, cleaning and drying the grinding ball; rh, Ni and Cu are mixed and then dried; and dry alloy powder is bonded to the surface of the treated grinding ball through a bonding agent, the grinding ball is placed on a cladding workbench, laser cladding is conducted on the surface of the grinding ball, and the Rh-Ni-Cu cladding layer grinding ball is obtained. The invention further provides a hydrogen addition method, and the Rh-Ni-Cu cladding layer grinding ball is used as a catalyst. By adopting the method disclosed by the invention, green and efficient production of hydrosilylation reaction in the field of chemical industry can be promoted.

The utility model relates to the technical field of chemical equipment, and provides a micro-channel reactor, which is characterized in that a reaction pipeline is designed into a structure that a plurality of pipeline units are sequentially communicated, and each pipeline unit is formed by a plurality of pipeline sections which are distributed in a snakelike manner, so that the reaction path in the reaction pipeline can be prolonged, and the reaction effect among different phases can be improved. Meanwhile, when the reaction pipeline is mounted, each support plate can be correspondingly clamped into a gap between the two adjacent pipeline sections, and the first clamping grooves in the support plates are clamped on the outer surfaces of the corresponding pipeline sections, so that the two adjacent pipeline sections are effectively supported; the vertical vibration caused by external impact between the pipeline sections can be effectively relieved, and the structural stability of the reaction pipeline is ensured. Therefore, the micro-channel reactor disclosed by the utility model is convenient to disassemble and assemble; the reaction pipeline is stably supported, so that the stability of the structure is favorably improved; and stable reaction among different phases is ensured.

The invention provides a preparation method of aromatic alcohol. The preparation method provided by the invention comprises the step of reacting aromatic acid shown in a formula I with potassium borohydride in the presence of a catalyst to obtain aromatic alcohol shown in a formula II. The preparation method disclosed by the invention is simple, mild in condition, high in product purity and high in reaction yield. # imgabs0 #

This invention belongs to the field of air purification materials technology, specifically relating to a high-purity spherical zinc oxide-silica synergistic photocatalytic air purification material. By weight, it comprises 100 parts of silica-coated high-purity spherical zinc oxide, 1-3 parts of a silanized porphyrin trifluoromethyl functional polymer, 2400-2950 parts of ethanol, 101.5-204 parts of deionized water, and 0.006-0.06 parts of glacial acetic acid. The high-purity spherical zinc oxide-silica synergistic photocatalytic air purification material prepared by this invention exhibits improved interface stability, a broadened spectral response range, and pollutant degradation capabilities.

Provided are: a modifier for a polymer, which has a high reaction rate with a polymer and is capable of controlling the amount of cationic groups in the polymer; a modified polymer into which the modifier for a polymer is introduced; and a rubber composition and a tire using the modified polymer. The present invention relates to a modifier for a polymer having an oxidized nitrile group and a cationic group.

The invention relates to the technical field of nuclear reactors, and provides a target rod for irradiation production of 60Co in a pressurized water reactor in order to solve the problems of irradiation production of 60Co in the pressurized water reactor and improvement of the specific activity of the 60Co produced by irradiation of the pressurized water reactor, the target rod comprises an outer target rod cladding and a plurality of target piece boxes arranged in the target rod cladding, the target piece box comprises a target piece box cladding and a target core block arranged in the target piece box cladding, and the target core block comprises a cobalt core block and a zirconium alloy core block which are sequentially stacked at intervals in the axial direction of the target piece box cladding; the method can be applied to the pressurized water reactor, the specific activity of < 60 > Co produced by irradiation of the cobalt core block in the pressurized water reactor is improved, and the activity requirement of a cobalt source is met.

The method for producing a silylphosphine compound of the present invention comprises: a first step of mixing a solvent having a relative dielectric constant of 4 or less, a basic compound, a silanizing agent and a phosphine to obtain a solution containing the silylphosphine compound; a second step of removing the solvent from the solution containing the silylphosphine compound to obtain a concentrated solution of the silylphosphine compound; and a third step of distilling the concentrated solution of the silylphosphine compound to obtain the silylphosphine compound. The silylphosphine compound of the present invention is a silylphosphine compound represented by the following general formula (1), and the content of the compound represented by the following general formula (2) is 0.5 mol% or less (for comments in the formula, see the specification).