46results about How to "Enhance the adsorption force" patented technology

The invention provides a method for the photocatalytic reduction of carbon oxide. The method comprises the steps of: firstly, mixing the carbon oxide with water and stirring the mixture to generate hydrate slurry; when the balance of the reaction system is maintained or the hydrate begins to decompose slowly with the system parameters adjusted, starting a photocatalytic reaction to reduce the carbon oxide in the presence of a catalyst. In the invention, by introducing the step of generating the hydrate slurry, the concentration of the carbon oxide in the reaction area is improved, the problem of poor absorption effect of the carbon oxide and a photocatalyst in the convectional process of reducing the carbon oxide in the presence of the photocatalyst is solved, and the efficiency of the photocatalytic reaction is improved.

The invention discloses a preparation method and an application method of a low-temperature low-chromium dyeing auxiliary agent of an acidic medium dye for wool. The preparation method comprises the steps that: 1, protein powder is prepared by using waste duck feather, wherein (1) the duck feather is subjected to pretreatment; (2) the suck feather is subjected to a dissolving treatment; and (3) duck feather protein powder is prepared; 2, a sodium hydroxide solution is prepared, and the sodium hydroxide solution is used for dissolving the duck feather protein powder; 3, sodium hydroxide, triethanolamine, and epichlorohydrin are adopted for preparing a cationic quaternary ammonium salt cross-linking modification agent WLS; and 4, the low-temperature low-chromium dyeing auxiliary agent for the acidic medium dye is prepared. The auxiliary agent can be used as a wool modification agent. After wool fibers are modified, wool fiber dyeing properties of acidic medium dyes are greatly improved, dye uptake percentage rate can be improved, mordant absorption performance of the dye is improved, chromium pollution in dye wastewater is reduced, wool fiber low-temperature low-chromium dyeing is realized, and waste duck feather keratin is effectively utilized. After modification, the wearability of wool products is improved.

The invention discloses a preparation method and application of a metal organic frame material. The preparation method comprises the steps: adding nickel nitrate hexahydrate, 4,4'-bipyridine and 4-(5-tetrazolyl)-benzoic acid into a mixed solvent composed of N,N-dimethylformamide, ethanol, water and hydrofluoric acid, and then, carrying out uniform stirring to obtain a mixed solution, wherein the mixed solvent comprises water, ethanol, N,N-dimethylformamide and hydrofluoric acid; placing the obtained mixed solution into a sealed high-pressure reactor, heating the mixed solution to 110-120 DEG C, preserving the heat for 65-85h, and then, cooling the mixed solution to the room temperature at the speed of 0.1-0.2 DEG C / min to obtain a reaction product; filtering the obtained reaction product to obtain a green bulk crystal; and exchanging the obtained green bulk crystal with methanol for 48-96h, and then, carrying out vacuum heating at 180 DEG C for 4-8h to obtain the metal organic frame material. The metal organic frame material is used for realizing selective adsorptive separation of C2H4 in the mixed gas of C2H4 and CH4.

The invention belongs to the technical field of fibers, and particularly relates to a composite phase-change temperature-adjusting material and a preparation method thereof, and a multi-phase-change temperature-adjusting fiber and a preparation method and application of the multi-phase-change temperature-adjusting fiber. The provided composite phase-change temperature-regulating material comprises phase-change energy-storage microcapsules and phase-change energy-storage aerogel which are dispersed in a dispersing agent; the capsule core material of the phase-change energy-storage microcapsules is n-hexadecane or n-heptadecane, and the capsule wall material is gelatin and Arabic gum; and the phase-change energy-storage aerogel comprises graphene aerogel and a phase change compound adsorbed in pores of the graphene aerogel, and the phase change compound comprises n-nonadecane, n-eicosane or n-heneicosane. In the invention, the composite phase-change temperature-regulating material comprises two phase-change temperature-regulating materials, has two phase-change temperature-regulating temperatures, and can meet the requirements of different temperatures and multiple application fields.

The invention discloses a 2,4-diaminotoluene molecularly imprinted polymer, a preparation method and application thereof, and particularly provides the 2,4-diaminotoluene molecularly imprinted polymer prepared from a functional monomer of methyl acrylic acid, a template molecule 2,4-diaminotoluene, and a crosslinking agent divinyl benzene, a preparation method for the molecularly imprinted polymer, and application of the molecularly imprinted polymer to solid phase extraction separation. The 2,4-diaminotoluene molecularly imprinted polymer provided by the invention is more excellent in mechanical property, higher in specific volume, higher in adsorption acting force to 2,4-diaminotoluene, and higher in adsorption capacity to 2,4-diaminotoluene; the preparation method for the 2,4-diaminotoluene molecularly imprinted polymer is short in synthesis time, and the washing of the template molecule is easy; the molecularly imprinted polymer is high in solid phase extraction efficiency to 2,4-diaminotoluene and more thorough in adsorption.

The invention relates to a phosphorus-free treatment agent for boiler water as well as preparation and application of the treatment agent. The treatment agent is prepared from the following raw material components in percentages by mass: 16-30% of modified polyaspartic acid, 10-20% of N-(3,4-dihydroxyphenethyl)acrylamide, 10-16% of a pH regulator, 3-8% of a deoxidant, 2-6% of a film-forming auxiliary agent, and the balance of deionized water. The treatment agent is prepared by the following steps: adding the deionized water into a reaction kettle according to the mass percentage content, adding the modified polyaspartic acid and the N-(3,4-dihydroxyphenethyl)acrylamide, performing full and uniform stirring, sequentially adding the deoxidant, the film-forming auxiliary agent and the pH regulator, performing heating to 50-65 DEG C, performing constant-temperature stirring for 20-30 min, and performing natural cooling to room temperature to obtain the treatment agent. In practical application, when the treatment agent is prepared, the components are calculated and added according to an actual water volume of a boiler, and the addition amount is 10-20 g / t. Compared with the prior art,the treatment agent provided by the invention is applied to medium and high-pressure boiler water systems, overcomes various negative effects caused by the use of a phosphate, reduces the blowdown rate of the boiler, saves energy, and has a good application prospect.

The invention relates to a magnetic modeling platform for a 3D printer. The magnetic modeling platform comprises a modeling platform body and a base plate allowing forming of printing materials, the base plate is placed above the modeling platform body, and is composed of an inner layer and an outer layer covering the outer side of the inner layer, the inner layer is made of magnetic metal attracted by an electric disk, the outer layer is made of plastic, and the modeling platform body is provided with a magnetic generating device for adsorbing the base plate to the modeling platform body through magnetism. According to the scheme, the magnetic modeling platform for the 3D printer is provided, wherein the magnetic modeling platform is simple in structure, facilitated locking and separationof the base plate, and has the high base plate strength.

The present invention relates to a horizontal fetching and placing system of two-phase solar energy wafer and a fetching and placing method thereof. The horizontal fetching and placing system of two-phase solar energy wafer is able to fetch solar wafer from a load crystal boat that has several horizontal placement grooves to make the solar wafer horizontally placed in the horizontal placement grooves. The horizontal fetching and placing system includes an adsorption fetching and placing device, a driving device and a processing device. The adsorption fetching and placing device is able to absorb and wipe out an absorbing solar wafer. When the adsorption fetching and placing device that driven by the driving device fetches or places the solar wafer to the horizontal placement grooves, the adsorption fetching and placing device is subject to processing device and maintains the low tension suction. When the solar wafer fetched out of the load crystal boat or in the process of transmitting, the solar wafer maintains high tension suction toward fetching solar wafer.

The invention relates to the field of environment protection and discloses an in-situ sludge recycling system device which comprises a vertical non-dynamic spiral stirring biological drying device, avertical sandless jet carbonization furnace, a crushing vacuum liquefaction device, a tail gas wet process treatment device, a dust collector, a heat exchanger and a negative pressure device. According to the in-situ sludge recycling system device, sludge is treated by using a technique of biological drying and carbonization energy-saving resource recycling and in-situ recycling, a truly seamlessclosed loop of sludge treatment and disposal is achieved, meanwhile, development of related industries is promoted, and the requirements of "green, recycling and low-carbon" are truly achieved. The technique is a novel comprehensive sludge treatment and disposal system with a high integration degree, and has the technical advantages of being low in operating cost, small in floor space, high in automation degree, simple in operation management, free of secondary pollution, and the like.

The invention discloses a device and a method for circularly purifying air in a conventional submarine. The device comprises a shell, wherein a CO2 absorption chamber and an O2 generation chamber are arranged in the shell; a motor connected with a rotating bed in the CO2 absorption chamber is arranged on one side of the shell, a gas inlet is connected to the top of the shell, and a gas inlet pipeline is sequentially connected with a first monitoring instrument, a first adjusting valve and a first flow meter; the other side of the shell is sequentially connected with a second monitoring instrument, a second adjusting valve and an air purifier; one side of the air purifier is connected with a third adjusting valve, a second flow meter and a third monitoring instrument; the CO2 absorption chamber is connected with an air blower, a carbon dioxide absorption composite material, a rotary machine tool and a first temperature controller; an inlet of the O2 generation chamber is sequentially connected with a fourth adjusting valve, a third flow meter, a check valve, a composite potassium permanganate solution and a second temperature controller through pipelines. The device is stable in structure and relatively low in cost, and has relatively high research value and application prospect.

The invention discloses boric acid affinity rutin molecularly imprinted magnetic nanospheres as well as a preparation method and an application thereof, and belongs to the technical field of nano material preparation. The method comprises the following steps of: modifying a phenylboronic acid group on the surface of a carboxyl magnetic sphere through amido bond connection, taking the obtained phenylboronic acid modified magnetic nanosphere as a carrier, taking rutin as a template molecule, taking polyethyleneimine as a hydrophilic functional monomer, and adopting a method of combining two-step template fixation and surface imprinting. The rutin molecularly imprinted magnetic nanospheres prepared by the method disclosed by the invention are rich in functional monomer groups, uniform in particle size, good in water dispersibility and good in selectivity; the method is a novel method for preparing the rutin molecularly imprinted polymer with high affinity and high selectivity, and shows a wide application prospect in the aspects of selective extraction and separation of the active pharmaceutical ingredient rutin in plants and the like.

The invention relates to the field of packaging demounting, in particular to automatic flip equipment. The automatic flip equipment comprises a mounting rack, and a conveying assembly, a detection mechanism, a cutter flip assembly and an adsorption assembly are fixedly mounted on the mounting rack; a conveying mechanism comprises a first conveying mechanism and a second conveying mechanism which are used for conveying packaging boxes in the same direction; the detection mechanism is arranged between the first conveying mechanism and the second conveying mechanism and comprises a compression air cylinder fixed to the mounting rack and a compression table fixedly arranged on a piston of the compression air cylinder; a spring is connected between the bottom face of the compression air cylinder and the piston; and the top end of the compression table is provided with a bevel which comprises a low end and a high end, and the low end of the compression table is not higher than a second conveying belt in position. Compared with the prior art, the automatic flip equipment solves the problems that traditional manual box flipping is large in work amount and much in consumed time.

The invention relates to the technical field of cleaning appliances, and discloses a steam mop device. The device comprises a handle and a mop main body connected with the handle, wherein the mop mainbody comprises a casing, a dust bucket module and a fan module; a strip-shaped air suction inlet is formed in the dust bucket module; a rotatable first elastic scraping strip is arranged at the frontend of the strip-shaped air suction inlet; a second elastic scraping strip is arranged at the rear end of the strip-shaped air suction inlet; a scraping portion and a jacking portion arranged on theouter side of the scraping portion are arranged on each scraping strip; and during the cleaning, the scraping portion of one elastic scraping strip is in surface contact with a cleaning surface when the scraping portion of the elastic strip is cleaned, and the scraping portion of the other elastic scraping strip forms a cleaning gap with the ground. In the state of use, the two elastic scraping strips interact with each other, one elastic scraping strip forms surface contact with the cleaning surface, and the other elastic scraping strip forms a cleaning gap with the cleaning surface all the time, so that dust can be blocked during the cleaning, and relatively large adsorption force can be generated to enhance the cleaning effect.

The invention relates to application of a functionalized three-dimensional covalent organic framework in detection of organophosphorus pesticide residues, and relates to the technical field of detection. The detection method comprises the following steps: using a hydroxyl-functionalized three-dimensional covalent organic framework material as an adsorbent for distributed solid-phase extraction of trace organophosphorus in fruits and vegetables, and detecting and analyzing organophosphorus in fruits and vegetables by gas chromatography. The detection method disclosed by the invention is simple to operate, low in material consumption and low in cost; only a small amount of organic solvent is used as an analyte extraction solvent, so that the method has the advantages of environmental protection and economy; the sensitivity is high, the detection limit is 0.15-0.39 ng / mL, and the linear relation between the organic phosphorus peak area and the concentration is good.

The invention discloses a multifunctional crushing hammer convenient to assemble and disassemble. The multifunctional crushing hammer comprises a machine frame, a high-frequency vibration source and adrill rod; the connecting port of the machine frame is provided with a connecting seat, an access port is formed in the connecting seat, sliding grooves are formed in the inner side wall of the access port, a necking hole is formed in the bottom of the access port, and an electromagnet block is assembled in the necking hole; and a hydraulic limiting piece is assembled in the connecting seat, thehydraulic limiting piece comprises a hydraulic oil cylinder and a limiting rod, wherein the hydraulic oil cylinder is connected with the limiting rod, an outlet and a limiting opening are formed in the inner side wall of the access port correspondingly, the limiting rod penetrates out of the outlet, and the end part of the limiting rod is fixed on the limiting opening. According to the crushing hammer, the connecting seat is additionally arranged on the crushing hammer, moreover, the access port is formed in the connecting seat, and the access port can be connected with a connecting rod of anexcavator; and the connecting rod is fixed by means of electromagnetic adsorption force and an inserting type limiting rod, mechanical force braking is carried out on each mounting and fixing component, opening or closing is convenient, then the disassembling and assembling process is simplified, the disassembly and assembly are convenient, time-saving and labor-saving effects are achieved, and the crushing hammer is convenient to inspect, maintain and clean.

The invention provides a microporous activated carbon fiber and a preparation method thereof, and belongs to the field of activated carbon fibers. The ash content of the microporous activated carbon fiber is 1.1 wt%-2.0 wt%, the specific surface area is 1500 m < 2 > / g-2100 m < 2 > / g, the proportion of pores below 0.8 nm is 40-50%, the proportion of pores of 0.8-2 nm is 50-60%, no mesopores above 2nm exist, the O element content is 5%-15%, the C element content is 65%-90%, the H element content is 1%-2%, and the ignition point is 300-450 DEG C. The preparation method comprises the following steps: impregnating raw materials with a phosphoric acid aqueous solution, drying, carbonizing, washing with water, and carrying out high-temperature modification to obtain the activated carbon fiber. Wherein the raw materials are artificial fibers and / or natural fibers; the mass fraction of the phosphoric acid aqueous solution is 5%-15%. The microporous activated carbon fiber has the advantages ofno mesopore, high proportion of 0.8-2 nm micropores, large specific surface area, high strength and no sticking problem; meanwhile, the ignition point is high, the hydrophobicity is high, and the VOCsadsorption acting force is enhanced; the preparation method is low in cost and high in product yield.

The invention discloses a method for improving low-temperature mechanical properties of a composite solid propellant, and belongs to the field of composite solid propellant manufacture. The method is characterized in that a composite solid propellant material formula adopts ultra-fine ammonium perchlorate to replace conventional ammonium perchlorate; a grain size (d4, 3) of the ultra-fine ammonium perchlorate is controlled in a range of 0.7 to 2.8 micrometers; and a mass percent of the ultra-fine ammonium perchlorate in the composite solid propellant material formula is in a range of 1 to 8%.The method can improve an increase range of low-temperature mechanical properties, and solve the problems of complex screening process, high testing cost, poor compatibility, easy aging and the like.

The invention provides a passivator and a preparation method thereof, and relates to the technical field of chemical material preparation. The preparation method of the passivator comprises the following steps: S1, mixing an antimony salt, a tin salt and an aromatic solvent to form a first solution; S2, adding a cross-linking agent into the first solution, and reacting to obtain a second solution;S3, sequentially adding organic amine and deionized water into the second solution, and reacting to obtain a mixture; S4, heating and evaporating the mixture to obtain a solid intermediate; and S5, calcining the solid intermediate to obtain the passivator. According to the preparation method of the passivator, the surface of the prepared SbSn / C passivator has certain oleophylic performance, the adsorption acting force on porphyrin molecules is enhanced through Van der Waals' force action and pi-pi action with macromolecules such as porphyrin nickel and porphyrin vanadium, and impurities suchas Ni and V in crude oil are effectively removed.

The invention discloses sample random extraction equipment for integrated circuit test. The structure is provided with a supporting column, a sliding frame, a moving device, a sliding block and a main motor, wherein the sliding frame is fixedly embedded above the supporting column, the moving device is fixedly connected to the sliding block, and the moving device is transversely placed when a movable body is subjected to adsorption force; an opening blocking state is formed at the position above the inner side of the suction opening by a certain distance, the oppositely-arranged air cushions make contact with each other and abut against each other, the air cushions are flexibly changed under cooperation of the air cushions and the fold pieces, transverse placement of the solid plate is not hindered due to too large friction of the front end of the solid plate, a vertical through diameter structure is formed between every two hoses, air flow circulation is facilitated, an adsorption effect is formed below the movable body, integrated circuit samples can be sucked up, balanced suction force is applied to the samples, and therefore it is guaranteed that only one circuit board is sucked, uniform suction force is applied to the samples of different specifications and sizes, and the situation that when the suction force is different, the sheet-shaped samples tilt and are clamped into the suction device, and the extraction work efficiency is reduced is avoided.

The invention discloses an intelligent power distribution cabinet installation robot, which includes a foundation, four locking universal wheels are placed on the top side wall of the foundation, and a support body is fixedly connected to the top side wall of the locking universal wheel. The top side wall of the support body is fixedly connected with a baffle, the top side wall of the support body is fixedly connected with a controller, and the side wall of the support body is fixedly connected with two symmetrically distributed first mechanical arms. A plurality of second mechanical arms are fixedly connected to the top side wall of the support body, and two symmetrically distributed support frames are fixedly connected to the top side wall of the support body. The invention relates to the technical field of equipment installation robots. The adsorption force generated by the vacuum cleaner is used to remove the dust in the installation hole, and at the same time, it can ensure that the second mechanical arm will not shake randomly during installation, thus avoiding the phenomenon of unsuccessful installation.

The invention discloses high-light oil wax leather and a preparation technology thereof, and belongs to the technical field of leather. The surface of the high-light oil wax leather disclosed by the invention is coated with a first priming coat, a second priming coat, a polishing priming coat and a light oil layer in a spraying manner in sequence. The preparation technology of the high-light oil wax leather comprises the following steps: return water standing, first drum falling and oscillation softening, leather blank priming, knurling, second drum falling, coloring, polishing priming coat spraying, polishing, roll finishing and third drum falling, shading and feeling agent spraying. The high-light oil wax leather disclosed by the invention is long in service life, high in color fastness and extremely high in flexibility, and has excellent smooth and moist hand feeling; and the raw materials used in the preparation process are green and environmentally-friendly, safe and reliable.