17results about How to "Improve adsorption strength" patented technology

The utility model discloses a seamless connection type LED light bar, which belongs to the technical field of LEDs and comprises a mounting plate and an LED light body, the bottom surface of the LED light body is mounted on the top surface of the mounting plate, two end surfaces of the mounting plate are respectively welded with a fixing plate and a plug board, one side of the fixing plate far away from the mounting plate is fixedly connected with two plug rods through grooves, and the plug rods are fixedly connected with the mounting plate through the grooves. The side face of the inserting rod is sleeved with a fixed magnetic ring, the side face of the fixed magnetic ring is connected with a movable magnetic ring in a magnetic attraction mode, movable sleeves are welded to the side face of the movable magnetic ring, the inner side walls of the movable sleeves are connected with the inserting rod in an inserting mode, the end faces of the two movable sleeves are welded to an inserting plate, and the side face of the inserting plate is fixedly connected with two second metal sheets through formed grooves. According to the LED lamp strip, the phenomenon that when the LED lamp strip is assembled and connected, external dust flows into the LED lamp strip through a connecting gap, and consequently circuit elements of the LED lamp strip are short-circuited and damaged is avoided, and the service life of the LED lamp strip is prolonged.

This invention discloses an easy-to-operate new energy charging pile, belonging to the field of new energy charging piles. It includes a charging pile and a charging gun. A fixed cylinder is fixedly installed on the charging pile, and a fixed component is provided on the charging gun. An adjustment component is provided inside the charging gun. The fixed component includes a handle fixedly installed on the charging gun, an elastic cylinder fixedly installed on the charging gun, and a fixed plate fixedly installed on the elastic cylinder. A connecting component is installed between the fixed plate and the charging gun. A plug is slidably installed through the fixed plate, and a cylinder is fixedly installed on the plug. This design allows the operator to adaptively adjust the tilt angle of the plug according to needs. Simultaneously, the pushing component effectively ensures that the plug on the charging gun remains parallel to the charging port during insertion or removal, improving contact and effectively reducing mechanical wear.

This invention relates to the field of mineral processing flotation reagents, specifically disclosing a high-efficiency collector for the flotation of sphalerite and its preparation method. The high-efficiency collector provided by this invention achieves synergistic enhancement of the functions of each component by compounding isopropyl xanthate, dialkyl dithiocarbamate, and mercaptoacetate, and introducing a designed and synthesized polymeric synergist. The three basic collector components together constitute a dense and stable primary hydrophobic adsorption layer. The introduced synergist, on the one hand, enhances the adsorption strength and selectivity on the surface of sphalerite through multiple functional groups; on the other hand, its grafted hydrophilic polymer chains can form steric hindrance at the mineral-water interface and regulate local hydrophilicity and hydrophobicity, thereby further optimizing the hydrophobic state of the mineral surface and inhibiting gangue inclusions. The composite reagent provided by this invention improves the recovery rate of useful minerals while ensuring concentrate quality.

The utility model discloses a mercury-containing flue gas pre-filtering device, which relates to the technical field of gas purification and comprises a base and a bottom plate, a collecting box and an adsorbent tank are fixed on the top of the base through a support, the top of the collecting box is communicated with an absorption chamber through a flow guide pipe, and the top of the adsorbent tank is communicated with a lifting pipe through a lifting pump. An electromagnetic valve is installed on the surface of the flow guide pipe, a stirring paddle is installed in the absorption chamber in a penetrating mode, a primary filtering structure is welded to the top of the bottom plate, and a pumping and draining structure is detachably connected to the top of the primary filtering structure. According to the utility model, the mercury-containing flue gas can be primarily filtered and repeatedly adsorbed and filtered by arranging a filtering mode of combining the primary filtering structure and the repeated filtering structure, and an adsorbent in the absorption chamber can be scattered and stirred for multiple times by arranging the stirring paddle capable of continuously rotating in the absorption chamber, so that the adsorption efficiency is improved. The adsorbent is in full contact with the mercury-containing flue gas, so that the adsorption strength of the adsorbent on the mercury-containing flue gas is improved.

The present application relates to a kind of refractory dispersant and its preparation method in the technical field of refractory additive, it is the comb structure copolymer, the copolymer includes styrene-maleic anhydride copolymer main chain, polyethylene glycol side chain grafted on the styrene-maleic anhydride copolymer main chain by ester bond, and phosphate radical;The polyethylene glycol side chain includes short-chain polyethylene glycol with molecular weight of 400-600 and long-chain polyethylene glycol with molecular weight of 800-1200.The present application realizes the precise division of function by using asymmetric compound polyethylene glycol side chain of specific molecular weight range, and controls esterification grafting degree is 50%-85%, not only can provide excellent initial wetting and dispersion force, ensure that slurry has excellent construction fluidity, but also can effectively prevent particle re-aggregation and sedimentation under static or shear, so as to fundamentally solve the technical problem that traditional dispersant is difficult to consider high initial fluidity and long-term anti-settling property, plasticity.

This invention relates to the field of water treatment technology, specifically to a method for adsorbing heavy metals in copper-containing wastewater. The method includes: preparing a modified chitosan composite material; preparing a composite fiber filter membrane; preparing composite hydrogel microspheres; and treating the copper-containing wastewater. This invention first dissolves chitosan and mixes it with nano-ferric oxide to form a physical coating, imparting magnetic responsiveness to the chitosan. Then, it modifies the chitosan using 1,3,5-phenyltricarboxylic acid and triethylenetetramine. A three-dimensional network cross-linked structure is constructed by reacting glutaraldehyde with the amino groups of chitosan and triethylenetetramine to produce modified chitosan. Finally, graphene oxide is loaded onto the surface and pores of the modified chitosan through impregnation and drying to obtain a modified chitosan composite material. When this material is added to pretreated wastewater, it can significantly improve the adsorption capacity for copper ions in copper-containing wastewater.

The invention discloses a recoverable quasi-interpenetrating network foam fracturing fluid which comprises the following components in percentage by mass: 2-4% of a multi-effect agent, 0.1-2% of a thickening aid, 1-2% of a clay stabilizer, 0.5-2.5% of an iron ion stabilizer, 0.05-0.5% of an enhancer and the balance of water, the multi-effect agent is selected from one or a mixture of more of cocamidopropyl dimethylamine, oleamide propyl dimethylamine, fatty acid amide propyl dimethylamine and erucamide propyl dimethylamine; under the stimulation of CO2, the multi-effect agent obviously reduces the surface tension of the fracturing fluid base fluid, improves the foaming capacity of the foam fracturing fluid, can form wormlike micelles in the base fluid, and greatly improves the stability of foam. The reinforcer is modified nano cellulose, can form hydrogen bonds with the multi-effect agent on an interface, improve the adsorption density of the multi-effect agent and reinforce the foaming capacity, and can also form a quasi-interpenetrating network structure with the wormlike micelles in a liquid film to further improve the stability and the sand-carrying capacity of the foam fracturing fluid, and the foam fracturing fluid can be recycled for multiple times.

The invention discloses a composite Chinese medicine preparation for chronic osteomyelitis, and its raw materials include: Wuwei Xiaoduyin extractant, sodium alginate, p-toluenesulfonic acid, cyclodextrin, 1-ethyl-(3-dimethylaminopropyl) carbodiimide hydrochloride, emulsifier, chitosan, sodium chloride, calcium chloride; the mass ratio of Wuwei Xiaoduyin extractant, sodium alginate, p-toluenesulfonic acid, cyclodextrin, 1-ethyl-(3-dimethylaminopropyl) carbodiimide hydrochloride, emulsifier, chitosan, sodium chloride, and calcium chloride is 10-20: 1-3: 0.1-0.2: 2-8: 0.01-0.1: 0.1-0.2: 1-2: 0.1-0.2: 0.1-0.2. The invention also discloses a preparation method of the composite Chinese medicine preparation for chronic osteomyelitis. The present invention can not only solve the disadvantage that antibiotics are difficult to penetrate into the bone to form an effective antibacterial concentration, but also the method is easy to implement, simple to prepare, and convenient to use.

This invention discloses a hierarchical guanidine resin-based CO2 adsorbent material and its preparation method, belonging to the field of polymer synthesis technology. The adsorbent material prepared by this invention has a composite spherical structure and a hierarchical pore structure, including micropores, mesopores, and macropores. By introducing a hierarchical pore structure, the adsorption capacity of the material for CO2 is effectively improved. The introduction of hierarchical pores can significantly reduce molecular diffusion resistance and increase the contact area between the adsorbent and CO2 molecules, thereby achieving rapid adsorption. Furthermore, pyridyl, polyamino compounds, and guanidine groups have strong basicity and chemical affinity for CO2. Through surface functionalization modification, the number of active sites on the material surface is significantly increased, thereby further improving the CO2 adsorption capacity and selectivity.

This disclosure provides an array-distributed UTG glass suction cup, relating to the technical field of glass suction cup equipment. It includes a suction cup assembly, a negative pressure diversion assembly, a buffer guide rod, a guide rod limiting block, a buffer spring, and a buffer mounting plate. Inner negative pressure pipes are installed on several suction cup holes on the inner ring of the suction cup assembly, and outer negative pressure pipes are installed on several suction cup holes on the outer ring of the suction cup assembly. The negative pressure diversion assembly communicates with the several negative pressure pipes. The buffer guide rod is vertically fixed on the upper surface of the suction cup assembly. The buffer mounting plate is parallel to the upper part of the suction cup assembly, and the buffer guide rod passes through the buffer mounting plate. The buffer mounting plate can slide along the axial direction of the buffer guide rod. The buffer spring is sleeved on the buffer guide rod and located between the suction cup assembly and the buffer mounting plate. The guide rod limiting block is fixedly installed on the upper side of the buffer guide rod and above the buffer mounting plate. This solution can achieve stable adsorption of glass material.

This invention discloses a functionalized MXene-supported metal oxide catalytic material, its preparation method, and its applications. The preparation method includes: fully contacting a pretreated metal substrate with a liquid-phase system containing MXene and metal ions and reacting at high temperature, followed by annealing in air to obtain the MXene-supported metal oxide material; and then subjecting it to electrochemical or chemical treatment to obtain the functionalized MXene-supported metal oxide catalytic material. In the functionalized MXene-supported metal oxide catalytic material of this invention, electron transfer occurs between the functionalized MXene and the metal oxide, promoting the formation of more active sites in the metal oxide that are conducive to catalyst-reactant electron exchange, thereby improving the activity of the oxygen evolution reaction (OER). Simultaneously, the functionalized MXene has abundant surface groups, which can generate strong chemical interactions with the metal oxide, improving the stability of the metal oxide in acidic media.

The application discloses a formaldehyde and carbon dioxide combined adsorbent, which is a solid porous material, and the effective component of the formaldehyde and carbon dioxide combined adsorbent is aluminum-doped hexagonal boron nitride. The formaldehyde and carbon dioxide combined adsorbent can simultaneously adsorb two harmful gases of formaldehyde and carbon dioxide, has the characteristics of high adsorption efficiency and high adsorption strength, and is especially suitable for use in newly decorated rooms, so that the indoor air purification effect is improved.

The application belongs to the technical field of clay stabilizer preparation, and particularly relates to a clay stabilizer and a preparation method thereof. The clay stabilizer is composed of the following raw materials: 1-ethyl-3-vinylimidazolium bromide, [3-(dodecyloxy)-2-hydroxypropyl] di(2-hydroxyethyl) methylammonium methyl sulfate, 3-{(dimethyl(3-trimethoxysilyl)propyl)ammonium} propane-1-sulfonate, polyallylamine hydrochloride, glycerophosphorylcholine, lauryl alcohol polyoxyethylene polyoxypropylene ether, glacial acetic acid, and the balance is deionized water. The clay stabilizer has excellent permeability and anti-swelling rate due to the synergistic effect between the raw materials.

The invention discloses a preparation method of a dual-mechanism oxygen evolution reaction spinel oxide electrocatalyst based on a strategy of partially filling oxygen vacancies with anions, and relates to a preparation method of an oxygen evolution reaction spinel oxide electrocatalyst. The technical problems that an existing pure spinel oxide is low in catalytic efficiency and unstable in structure are solved. The preparation method comprises the following steps: 1, preparing a self-supporting spinel oxide electrode material; 2, preparing a self-supporting oxygen vacancy enriched spinel oxide electrode material; 3, preparing a self-supporting oxygen vacancy part anion filling type catalyst; according to the invention, an oxygen vacancy-anion partial filling strategy is utilized to regulate and control the local structure and the electronic state of the spinel oxide. The overpotential of the prepared Co3O4-VO-S / NF catalyst in 1.0 M KOH at the current density of 50 mA cm <-2 > is as low as 301 mV, and the Co3O4-VO-S / NF catalyst can stably run for more than 120 hours and can be used in the field of hydrogen production by water electrolysis.

The invention provides a wall surface adsorption device which can improve the safety and reliability of wall surface operation. The wall surface adsorption device comprises a carrying mechanism used for driving the wall surface adsorption device to move; the adsorption assembly is borne on the carrying mechanism, and the adsorption assembly is used for being adsorbed to the wall surface; the push rod assembly is connected with the carrying mechanism and arranged on the side, away from the wall face, of the adsorption assembly in the first direction, the push rod assembly can push the adsorption assembly to move in the first direction, and the first direction is parallel to the normal vector of the wall face.

The application discloses a multi-scale sucker of a biomimetic scavenger fish for non-destructive adsorption fixation of organ tissues. The sucker comprises a lip disc with a stiffness gradient characteristic, a pre-valve cavity and a post-valve cavity, the lip disc is provided with a biomimetic papilla structure and a mucus secretion flow channel, and a side wall of the sucker is provided with a negative pressure through hole. Through the multi-scale biomimetic mechanism of coupling negative pressure adsorption, chemical adhesion and capillary force adsorption, the sucker can realize high-strength, high-reliability and non-destructive adsorption fixation on the surface of wet and soft organ tissues, can be used for traction and stabilization of tissues in minimally invasive surgery, and can effectively expand and maintain the exposure of an operation field.

The present invention relates to the field of gas purification technology, and in particular to a preparation method and application of a cellulose-based magnetic adsorption material. A magnetic Fe3O4 / cellulose adsorption material is continuously synthesized by an in-situ method, and the specific synthesis steps are as follows: (1) mixing Fe(OH)3 acetic acid solution and FeSO4 acetic acid solution; (2) dissolving cellulose in a solvent; (3) taking a sodium hydroxide solution; (4) mixing and reacting the liquids in step (1), step (2) and step (3) under an inert gas atmosphere to obtain a dark brown liquid; (5) centrifuging the dark brown liquid obtained in step (4) to obtain a precipitate, and the precipitate is dried and calcined to obtain a magnetic Fe3O4 / cellulose adsorption material with high magnetic saturation intensity. The present invention realizes the complete adsorption of ammonia or amines and meets ultra-low emissions; the adsorption material has excellent adsorption performance after regeneration, and finally realizes the efficient removal of ammonia / amine odors in public health places, and is particularly suitable for adsorption and purification of hospital odors.