30results about How to "Good suspension" patented technology

This invention discloses a method for preparing high specific surface area cerium phosphate nanoparticles. The modified corn starch in this invention exhibits good water solubility, resulting in a solution with good suspension and stability after dissolving in water. This suspension stability provides a spatial carrier for the formation of cerium phosphate nanoparticles. A network structure is formed through hydrogen bonding between the molecular weight chains of the modified corn starch, allowing control over the uniformity of cerium phosphate particle size. Different specific surface area values ​​of cerium phosphate can be controlled by adjusting the concentration of the modified corn starch. The modified corn starch can be removed through subsequent high-temperature sintering and washing, ultimately yielding high-purity cerium phosphate nanoparticles. These nanoparticles possess uniformity and high specific surface area, making them suitable for applications in electrode materials, adsorbent materials, luminescent materials, and polymer nanofillers.

The utility model relates to a kind of suspension bed frame and the suspension soft bed of application thereof, solve the problem that the supporting leg of bed frame or bed product is exposed and affects visual effect existing in prior art, the technical scheme used is: including bed board, the supporting leg of supporting bed board, and the bed backrest being set in the one end of the bed board, it is characterized in that the three edges of the bed board are provided with the bed frame enclosed by left side plate, right side plate and tail plate, the bed backrest closes the opening of the bed frame, the lower end of the bed frame is higher than the lower end of the supporting leg, and the bed frame hides the supporting leg.Its effect: by bed backrest and bed frame cooperation, so that bed frame or bed product is used, supporting leg is hidden in the interior of bed frame, not bare, form "suspension" effect, to improve the overall quality of bed frame, bed product and bed product use space.

The application discloses a kind of building waste self-reinforced recycled aggregate preparation methods, comprising the following steps: (1), the building waste containing red brick and hardened cement paste is crushed, and red brick material and the block of hardened cement paste containing are separated out;(2), red brick material is mixed with the solution containing carboxyl ether and is ground, and the modified slurry containing nanoscale red brick particle material is obtained;(3), the block of hardened cement paste containing separated out is immersed in modified slurry, after immersion is completed, the block of hardened cement paste containing is taken out and is dried, and building waste self-reinforced recycled aggregate is obtained;In the solution containing carboxyl ether, solvent is water, and the concentration of carboxyl ether is 0.1-0.8mol / L;The particle size range of nanoscale red brick particle material is 50-200nm;During the process of immersion, the mixture is heated and stirred, and the heating temperature is 40-80 DEG C.The method can prepare building waste self-reinforced recycled aggregate with high strength and low water absorption.

This invention discloses a high-salt-resistant, solid-phase-free, long-lasting drag-reducing agent system, which is copolymerized from the following components in parts by weight: 5-20 parts hydrophobic-oleophilic monomer, 1-10 parts hydrophilic monomer, 80-120 parts white oil, 3-7 parts sorbitan monooleate, 3-7 parts polyoxyethylene sorbitan monooleate, 0.1-0.5 parts initiator, and 0.01-0.03 parts oil-phase associating surfactant. This invention also discloses a method for preparing the high-salt-resistant, solid-phase-free, long-lasting drag-reducing agent system, comprising the following steps: preparing an aqueous solution; preparing an oil-phase solution; obtaining a primary emulsion; obtaining an oil-phase elasticized amphoteric polyacrylamide; and obtaining the drag-reducing agent system. This invention belongs to the field of hydraulic fracturing materials technology and solves the problem of high reservoir damage caused by solid-phase suspension stabilizers in existing technologies.

The invention discloses liquid medicine matching equipment for sewage treatment and a use method of the liquid medicine matching equipment, and relates to the technical field of sewage treatment equipment. The device comprises a matching barrel, an inner cavity of the matching barrel is provided with a ventilation stirring assembly, the bottom of the matching barrel is fixedly connected with a base, the ventilation stirring assembly comprises a rotating cylinder, and the rotating cylinder is connected with the top of the matching barrel in a penetrating mode. By combining the rotating stirring blades with the design of releasing gas from the exhaust holes in the bottom of the rotating drum, a mixing environment with the synergistic effect of mechanical force and aerodynamic force is formed, strong shear flow generated by the stirring blades can rapidly break initial cakes of powdery medicaments, and a continuously rising fine bubble net penetrates through the materials, so that the powdery medicaments can be quickly crushed. The double-acting mechanism is used for preventing particles from being agglomerated again and promoting the particles to suspend and diffuse in liquid, so that the problems of non-uniform mixing and insufficient powder dissolution of a single stirring mechanism in the prior art are solved, and the mixing efficiency and the homogeneity of liquid medicine are improved.

This invention relates to a flame-retardant sprayable polyurea waterproof coating for rigid foam roofing insulation. The coating comprises component A and component B. Component A includes a modified isocyanate prepolymer. Component B includes the following components: polyether, amino chain extender, amino POSS crosslinking agent, expanded graphite flame retardant, and additives. The modified isocyanate prepolymer is obtained by reacting amino POSS, polyether polyol, and MDI. Through the compounding of component A and component B, this invention reveals that the modified isocyanate prepolymer containing a POSS cage structure, the amino POSS crosslinking agent, and the expanded graphite flame retardant synergistically and significantly improves the flame-retardant and heat-resistant properties of the coating, while also enhancing the material's hardness and adhesion, among other physical and chemical properties.

This invention belongs to the field of oil and gas field development technology and discloses a temperature-pH dual-responsive smart fracturing proppant and its preparation method. The proppant adopts a three-layer core-shell structure, including a high-strength ceramic or quartz sand core, a polyvinyl alcohol crosslinking transition layer reinforced with nano-silica, and a poly(N-isopropylacrylamide-co-acrylic acid) copolymer smart response layer. In the low-temperature proppant carrying stage, the smart response layer hydrates and swells to form a gel layer, giving the proppant excellent suspension performance and friction reduction ability, realizing water fracturing. In the high-temperature reservoir environment, the phase transformation of the temperature-sensitive segment and the protonation of the pH-sensitive segment cause the smart response layer to shrink and detach rapidly, realizing autonomous gel breaking and aiding in fracturing. The nano-reinforced transition layer significantly improves the anti-fracture performance, reducing the fracture rate to 6% to 11% and increasing the long-term conductivity by 35% to 58%.

The present application relates to sewage treatment technical field, disclose a kind of membrane aeration biological membrane reactor's operating method and operating device, sewage treatment system.The operating method has at least one control cycle during the continuous operation of reactor, the cycle includes: pre-control step, provide negative pressure pulse to membrane assembly inside, the normal compressive stress directed to membrane silk inside is applied to the biological membrane attached to the outer surface of membrane, so that the microstrain of outer layer structure is generated;Fluidized cutting step, add and fluidize circulating cutting microparticles to reactor, and microparticles are rolled cutting to the surface of biological membrane under the driving of fluid.By the cutting action of cutting microparticle and negative pressure pulse, the outer layer of biological membrane is selectively stripped from invalid biomass.The present application realizes the fine control from inside to outside to biological membrane under the condition of not interrupting sewage treatment process, can long-term maintain biological membrane in thin, high-activity ideal mass transfer state, effectively solve the problem that mass transfer efficiency attenuates with operating time.

The present application relates to a kind of water-based quick-drying coating for casting and its preparation method, the water-based quick-drying coating is prepared by the following raw materials according to weight percentage, refractory aggregate 60~80%, binder 3~10%, suspending agent solution 0.5~5%, quick-drying aid 0.2~1.0%, dispersing agent 0.2~1.0%, defoaming agent 0.1~1.0%, water-reducing agent 0.2~1.0%, carrier liquid 14~25%.The water-based casting coating of the present application has the characteristics of short drying time, small gas evolution, high surface strength.

This invention discloses a fracturing proppant with a hydrophobic aerogel coating that achieves slow settling, its preparation method, and its application, relating to the field of oil and gas well enhancement technology. A hydrophobic silica aerogel is prepared by introducing methyl-rich trimethylmethoxysilane. Before curing, the gel liquid is sprayed onto the proppant surface using fluidized bed spraying. After post-treatment, a hydrophobically modified aerogel is formed on the proppant surface. Due to the special papillary structure formed by the hydrophobic silica aerogel on the proppant surface, a lotus leaf effect is generated, thus forming a gas film. This gas film and its porous structure ultimately form a fracturing proppant that can be freely suspended in water, achieving slow settling through a hydrophobic aerogel coating. The proppant coated with the gas film and aerogel can be freely suspended in water, exhibiting excellent suspension and stability, reducing the requirements for fluid viscoelasticity, eliminating the need for large amounts of organic thickeners, reducing damage to the reservoir, and the preparation process is simple, low-cost, and environmentally friendly.

The application discloses a mine-used explosion-proof high-voltage vacuum power distribution device and relates to the technical field of power distribution devices. The mine-used explosion-proof high-voltage vacuum power distribution device comprises a cabinet door hinged to the left side of a cabinet body, a power distribution cabinet body electric element arranged in the interior of the cabinet body, an air cavity formed in the upper side of the cabinet body, an exhaust mechanism arranged in the interior of the air cavity, an extrusion plate, a spring and a sliding block, a sliding groove formed in the left side of the inner wall of the cabinet body and a sliding connection between the inner wall of the sliding groove and the outer wall of the extrusion plate. When the mine-used explosion-proof high-voltage vacuum power distribution device is used, the extrusion plate is retracted upwards when the cabinet door is closed, a connecting rod is pushed to the right to move an extrusion block, the gas in an air bag is exhausted to the interior of the cabinet body, the internal airflow is blown, dust is blown to be suspended, the dust can be exhausted together with the airflow when vacuumizing and the dust adhering to the inner wall of the power distribution cabinet is avoided.

This invention provides a grouped self-cleaning aeration and fluidization system, relating to the field of wastewater treatment aeration technology. It includes: a dissolved oxygen sensor, an intelligent control box, a blower, and grouped aeration modules. The intelligent control box includes a power distribution module, a control and protection module, a PLC control module, a cloud-based IoT gateway module, and a data acquisition module. The grouped aeration modules include multiple aeration units; each aeration unit includes multiple independent microporous hoses, hose fixing brackets, and butterfly valves. The dissolved oxygen sensor is connected to the PLC control module. The PLC control module, blower, and grouped aeration modules are connected sequentially. The PLC control module is connected to the butterfly valves. The PLC control module controls the opening and closing of the butterfly valves, performing self-cleaning and starting / stopping the grouped aeration modules. This invention can form directional water flow, achieving full-pool aeration and fluidization, preventing sludge accumulation at the bottom of the pool, and improving sludge suspension and oxygen transfer efficiency.

The present application provides a kind of composition containing rod-shaped crystalline particles and its preparation method and application, and the composition containing rod-shaped crystalline particles includes the following mass percentage components: anionic surfactant 15%-20%, nonionic surfactant 5%-15%, solid ester crystallization agent 15%-25%, and the balance is water;Wherein, the critical packing parameter CPP value of anionic surfactant is 0.3-0.5, and the aspect ratio of rod-shaped crystalline particle is greater than or equal to 3;When preparing, first form rod-shaped surfactant micelles, and when cooling, solid ester crystallization agent is crystallized with rod-shaped micelles as a template;The preparation method of the present application is simple, and the preparation cost is low;The composition containing rod-shaped crystalline particles of the present application can be applied to personal care cleaning type cosmetics as silicone oil suspending agent, and rod-shaped crystalline particles can prevent silicone oil and other substances in personal care cleaning type cosmetics from delaminating, and improve the stability of product.

The application relates to a magnetic fluid permanent magnetic hybrid bearing, which is mainly characterized in that magnetic fluid is added in a bearing gap, a permanent magnet is installed on a bearing rotating shaft, a controllable magnetic circuit is generated by controlling a coil through a power electronic circuit, the permanent magnet on the bearing rotating shaft is attracted, and the rotating shaft is suspended and rotates in a bearing inner cavity. The application also optimizes a control method of the hybrid bearing, improves effective stiffness and damping of high-frequency oscillation outside a controller bandwidth, and improves dynamic performance of the hybrid bearing. Meanwhile, the application solves the problems of high power consumption and high-frequency mode control of a traditional magnetic bearing through a magnetic fluid and permanent magnetic hybrid control scheme, and has good bearing capacity and dynamic performance.

The invention discloses a regenerated cellulose nanofiber with a three-dimensional network structure and a preparation method and application thereof, and belongs to the technical field of cellulose nanofiber preparation. The method comprises the following steps: (1) preparing modified cellulose; (2) dissolving the modified cellulose in an alkali solution with a certain concentration to obtain a cellulose solution; (3) preparing a coagulating bath solution, and adding the coagulating bath solution into the cellulose solution to obtain regenerated cellulose; and (4) treating by using a physical means to obtain the regenerated cellulose nanofiber. Cellulose modification, cellulose regeneration and mild homogenization technologies are combined together, a novel method for preparing the regenerated cellulose nanofiber is developed, and the method has the advantages of being easy to operate, low in homogenization pressure, low in energy consumption, capable of achieving large-scale production and the like. The prepared regenerated cellulose nanofiber has the characteristics of superfine diameter and three-dimensional network structure, and shows excellent suspension performance.

The invention discloses a chemical temporary plugging agent for oil testing operation of a water leakage reservoir, and belongs to the field of well completion processes of oil and gas wells. The acid-soluble gel material comprises the following raw materials in percentage by weight: 80%-90% of an acid-soluble gel material and 10%-20% of an acid-soluble granular material. The invention also discloses a preparation method of the chemical temporary plugging agent for the oil testing operation of the water leakage reservoir. The leakage reservoir formation testing operation chemical temporary plugging agent provided by the invention can remarkably improve the pressure bearing capacity of a crack plugging layer, the pressure bearing capacity of the crack plugging layer can be improved by 164% at most compared with that of a crack plugging layer formed by purely using a gel chemical temporary plugging agent, the plugging layer can be completely removed through an acidification method after the operation is finished, the purpose of reservoir protection is achieved, and the leakage reservoir formation testing operation chemical temporary plugging agent has the advantages of simple preparation process and low cost. The chemical temporary plugging agent provided by the invention has wide application prospect and market scale in the development aspect of gas fields such as Sichuan, Tarim and the like.

The application relates to the technical field of nano color paste, and discloses a water-oil universal type nano color paste and a preparation method thereof, which is composed of 30-40 parts of water-oil modified polyurethane, 3-5 parts of polyethylene glycol monomethyl ether, 2-6 parts of polyether modified maleic anhydride copolymer, 6-10 parts of polydimethylsiloxanol, 5-8 parts of glycerol, 0.3-0.6 parts of isobutyl alcohol amine, 35-50 parts of deionized water, 20-30 parts of pigment color powder and 10-20 parts of ethanol in terms of weight fraction. The water-oil modified polyurethane has certain hydrophobic performance (provided by an alkyl long chain) and certain hydrophilic performance (provided by sodium sulfonate), the balance of the two performances makes the water-oil modified polyurethane play a stabilizing role in a water-oil mixture, and the water-oil modified polyurethane has good storage stability. The water-oil modified polyurethane has easy preparation, wide application range, is suitable for most oil-based paints and water-based paints on the market, has extremely high transparency, permeability, and excellent effects on coloring and wetting of wood.

The application discloses an organic annulus protection fluid for oil and gas wells and a preparation method thereof. The annulus protection fluid comprises 0.01-3wt% of active polymer, 0.1-5wt% of oxygen scavenger, 0.1-2.5wt% of bactericide, 0.1-0.5% of pH regulator, and the rest is water. The active polymer in the annulus protection fluid is copolymerized from N-acryloyl morpholine and acrylate compounds. The annulus protection fluid has good chemical stability, can effectively delay the corrosion rate of the casing and the oil and gas pipeline, solve the problems of fouling, bacterial reproduction, under-deposit corrosion and plugging caused thereby, and reduce the pressure difference between the oil and gas pipeline and the annulus. The system is suitable for annulus protection of oil and gas wells, and is especially suitable for high-acid and high-sulfur oil and gas wells.

The utility model discloses a buckle with a magnetic attraction function, which comprises a buckle body, the buckle body can be arranged in various shapes, and the key point is that a hollow cavity structure is arranged in the buckle body, and a magnet is embedded in the hollow cavity structure, so that the buckle body realizes a magnetic attraction connection effect through the magnetic attraction performance of the magnet. By adopting the design that the buckle body is arranged to be of the hollow cavity structure and the magnet is embedded in the hollow cavity structure, when the buckle is used, the buckle body can be connected to a bearing object of a rope-shaped structure or a rod-shaped structure through a space defined by the main buckle piece and the movable buckle piece or the deformation part; and the buckle body can be directly adsorbed on a bearing object which can be attracted with the magnet through the magnetic attraction performance of the magnet in the buckle body.

This invention provides a polymer with an interpenetrating network structure, its preparation method, and its application. The method includes: polymerizing a polymer backbone with a first monomer; wherein the polymer backbone is a network; the polymer backbone includes structural units derived from a nonionic monomer, structural units derived from an anionic monomer, and structural units derived from a phenolic resin; the first monomer has the structure shown in formula (A); in formula (A), R0 is a C4-C12 alkyl group. The polymer of this invention does not over-spread at high temperatures or over-shrink at high salt conditions, exhibiting excellent temperature and salt resistance, and good dispersion stability in high-temperature water / salt water. When applied to drilling fluids and / or completion fluids, this polymer effectively reduces filtration loss, optimizes lubrication, and enhances suspension.

The application discloses a conjugated crosslinking monomer, a solid-phase-free drilling fluid thickening agent, and a preparation method and application thereof. The conjugated crosslinking monomer has a stereoscopic alkyl structure and a conjugated diene structure, and is shown in the following formula. The conjugated crosslinking monomer is prepared by synthesizing an alkenyl compound with an adamantane compound in the presence of a catalyst. The conjugated crosslinking monomer is reacted with an alkenyl amide and an alkenyl sulfonic acid to obtain the solid-phase-free drilling fluid thickening agent. The thickening agent has good temperature resistance and salt resistance, and can improve the suspension and rock carrying performance of a clay-free drilling fluid system in a medium-deep well.

The invention discloses a temporary oil intermingling filter. The temporary oil intermingling filter comprises a barrel body, a cover body, a filtering cavity and an oil intermingling cavity, the oil mixing cavity is provided with an inlet section and connected to the filtering cavity through a U-shaped channel, an outlet section is arranged on the side portion of the filtering cavity, and a filtering cylinder is arranged in the filtering cavity in a suspended mode. According to the invention, the expansion cavity is arranged, the self-excitation pulse generation unit is integrated in the U-shaped channel, the water hammer effect is periodically excited by the flowing energy of the system, and the generated pressure pulsation acts on the suspended filter cartridge to form dynamic cleaning; piezoelectric ceramics can be integrated at the bottom of the filter cartridge and are matched with a water hammer effect to generate vibration so as to strengthen a cleaning effect. The device is compact in structure, can be quickly mounted without on-site fire operation, and solves the problem that pipelines are inconvenient to change in traditional oil flushing operation.

The present application relates to the technical field of drilling plugging, in particular to a polymer, a plugging agent mixture containing the polymer and application. The polymer is prepared by polymerization of monomer A, monomer B, monomer C, monomer D and monomer E. The chemical structural formula of monomer A is: the chemical structural formula of monomer B is: the chemical structural formula of monomer C is: the chemical structural formula of monomer D is: and the chemical structural formula of monomer E is: wherein the molar ratio of monomer A, monomer B, monomer C, monomer D and monomer E is (0.2-1):(0.3-1):(0.5-1):(0.2-1):(0.3-1). The polymer can effectively improve its adhesion in the formation, cooperate with rigid plugging material, flexible plugging material and the like to form a plugging agent mixture with certain adhesion, and meet the plugging of the formation in the drilling process.

The application provides a composition containing prothioconazole, clothianidin and mefenoxam and application thereof. The dosage form of the composition is a suspension seed coating agent, and the suspension seed coating agent contains the following ingredients in the weight percentage: 0.5-3% of prothioconazole, 5-15% of clothianidin, 0.5-3% of mefenoxam, 4-16% of wetting dispersant, 0.2-2% of thickening agent, 2-8% of film forming agent, 0.1-0.5% of preservative, 1-6% of antifreeze, 0.2-1.2% of defoaming agent, 0.1-0.5% of pigment and deionized water to make up 100%. The suspension seed coating agent provided by the application has excellent preparation performance, can significantly improve the control effect of the pesticide on pests and diseases, can effectively reduce the use dosage of the active ingredient, can reduce environmental pollution and can ensure food safety.

This utility model provides a veterinary dry powder disinfection machine. The veterinary dry powder disinfection machine includes: a storage box for holding dry powder disinfectant; a fan fixedly installed on one side of the storage box, the fan's air inlet connected to the storage box, and a connecting pipe connected to the fan's air outlet, the connecting pipe being equipped with a nozzle for spraying the dry powder disinfectant; and a sieving plate assembled inside the storage box for sieving the dry powder disinfectant. The veterinary dry powder disinfection machine provided by this utility model can spray dry powder disinfectant for disinfection operations, and can sieve and disperse the dry powder disinfectant, preventing clumping and allowing the dry powder disinfectant to fully decompose into fine dust, improving the suspension and diffusion of the dry powder disinfectant, increasing the contact area with pathogenic microorganisms, thereby improving the disinfection effect.

The utility model relates to the technical field of mixer, and disclose a kind of anti-blocking vertical mud mixer, including tripod support frame body and stirring tank body, the outer periphery welding of stirring tank body top has mounting bracket.The anti-blocking vertical mud mixer, by the setting of anti-blocking component, when using, the stirring raw material of mud is placed into stirring tank body, connects external power supply, starts stirring motor, stirring rod is rotated with stirring frame, oblique stirring blade and connecting rod, stirring frame and oblique stirring blade are stirred and mixed to mud raw material, anti-blocking shovel is directly applied to the solid particles deposited in tank bottom, increase its radial flow, shovel, improve the suspension capacity of bottom material, to prevent material accumulation to form hard block, significantly reduce the blockage, avoid the solid particles of easy precipitation deposition to tank bottom, long-time accumulation, form hard block, in later stage conveying process, it can block output pipe, help to improve the efficiency of mud mixer discharge.

The invention discloses a compound thickening stabilizer, a frozen drink and a preparation method of the frozen drink, and relates to the technical field of frozen drinks. By optimizing the composition of the compound thickening stabilizer, the compound thickening stabilizer comprises gellan gum, carrageenan, sodium carboxymethyl cellulose, konjaku flour, xanthan gum, locust bean gum, sodium tripolyphosphate, potassium chloride and maltodextrin, and by matching with the adjustment of the dosage of each component, large-particle pulp can be better suspended, so that the large-particle pulp is more uniformly distributed, and the overall sensory quality of the product is improved; the preparation of the frozen drink with crisp taste is facilitated.

The invention discloses shower gel and a preparation method thereof, and relates to the field of daily chemical products. The shower gel is prepared from the following raw materials in parts by weight: 65 to 70 parts of water, 0.05 to 0.3 part of disodium ethylene diamine tetraacetate, 20 to 30 parts of a surfactant, 7 to 12 parts of a viscosity regulator, 0.3 to 0.7 part of an acidic pH regulator, 0.3 to 0.5 part of phenoxyethanol, 0.4 to 0.8 part of a bacteriostatic agent and 0.2 to 0.4 part of essence. The viscosity modifier is prepared from cocamide MEA, PEG-120 methyl glucose dioleate, sodium carboxymethyl starch, an acrylic acid-acrylate copolymer and sodium chloride. The viscosity modifier prepared from cocamide MEA, PEG-120 methyl glucose dioleate, sodium carboxymethyl starch, acrylic acid-acrylate copolymer and sodium chloride is compounded with the surfactant, so that the formed shower gel has relatively high temperature stability and still keeps proper viscosity in high-temperature and low-temperature environments.