10results about How to "Good suspension" patented technology

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 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 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 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.