26results about How to "Improve anchoring ability" patented technology

The invention discloses an asphalt mixture added with waste battery powder, which comprises the following components in parts by mass: 4-6 parts of matrix asphalt, 2-5 parts of waste battery powder and 90-110 parts of mixed aggregate, wherein the mixed aggregate is prepared from the following components in parts by mass: 22 to 26 parts of first coarse aggregate with the particle size of 10 to 15mm, 16 to 20 parts of second coarse aggregate with the particle size of 5 to 10mm, 19 to 23 parts of third coarse aggregate with the particle size of 3 to 5mm and 31 to 35 parts of fine aggregate with the particle size of 0 to 3mm; the waste battery powder has a porous structure, and the ratio of the porous structure in the waste battery powder is 70-80% according to the volume ratio; the chemical component of the waste battery powder comprises ZnO. According to the asphalt mixture added with the waste battery powder, the waste battery powder is applied to the asphalt mixture, and the pavement performance of the asphalt mixture is improved on the premise that modified asphalt is not used and the utilization rate of the waste battery powder is increased, so that the defects in the prior art are overcome.

The invention discloses an anchoring device for an underground cutting tool. The technical problem that the anchoring effect is poor is solved. The device comprises an anchoring shell, an upper connector, a lower bearing and an inner core pipe and further comprises a plurality of anchoring arms, the anchoring arms are hinged to the anchoring shell and distributed in the circumferential direction of the anchoring shell at equal intervals, the length direction of the anchoring arms is parallel to the axial direction of the anchoring shell, and the length direction of the anchoring arms is parallel to the axial direction of the anchoring shell. The axial direction of a hinge shaft on each anchoring arm is parallel to the axial direction of the anchoring shell, and the upper end and the lower end of the side, away from the hinge shaft, of each anchoring arm are each provided with an anchoring block used for abutting against the inner wall of a tubular column. And the control piece is arranged between the anchoring shell and the multiple anchoring arms and used for controlling the multiple anchoring arms to rotate synchronously. The anchoring effect can be improved, it is guaranteed that cutting operation is conducted smoothly, meanwhile, the anchoring arm can be automatically retracted, and the risk that a tool is clamped in the lifting process is effectively reduced.

The present application provides a degradable vena cava filter with an expansion structure, which relates to the field of cardiovascular medical devices, and includes a stent segment, which includes a plurality of expansion components connected in sequence along the circumferential direction, each expansion component is provided with an anchor hook, and the anchor hook is embedded in the blood vessel wall for positioning the filter; when the plurality of expansion components are stretched, the plurality of expansion components expand outward in a direction away from the axis. By providing a plurality of expansion components, when the expansion components are stretched due to blood flow impact, the plurality of expansion components can respectively expand outward in the radial direction and drive the corresponding anchor hooks to expand outward, so that the stent segment fits more closely to the blood vessel wall, improves the anchoring ability of the anchor hook on the blood vessel wall, and reduces the displacement problem of the degradable vena cava filter with an expansion structure during use.

The invention relates to the technical field of non-uniformly distributed oil and gas reservoir transformation, and particularly discloses a soluble bridge plug for a casing deformation well, which comprises a limiting joint, a connecting pull rod, a rubber sleeve, a slip assembly, a central pipe, a locking ring and an expansion component, and the expansion component comprises a first cone expansion piece and a second cone expansion piece; the first cone expansion piece is arranged on the central pipe in a sleeving mode and located between the rubber sleeve and the slip assembly, one end of the first cone expansion piece is used for limiting the other end of the rubber sleeve, the other end of the first cone expansion piece is used for expanding one end of the slip assembly, and the first cone expansion piece is connected to the other end of the connecting pull rod; the second cone expansion part is used for expanding the other end of the slip assembly, and the locking ring is connected into the second cone expansion part and slidably connected to the connecting pull rod. The soluble bridge plug can achieve effective packing in an ultra-large annular gap after passing through a casing change point, it is guaranteed that the casing change well passing through the casing change point transformation process is smoothly implemented, section loss is reduced, and the reservoir transformation efficiency is improved.

The invention discloses a defect-rich ordered mesoporous carbon supported metal nanoparticle catalyst as well as preparation and application thereof, and belongs to the field of catalysts. Wherein the defect-rich ordered mesoporous carbon is constructed by co-pouring a hard template into a mixed solution obtained by mixing a carbon source and a defect-causing agent and dehydrating, and then carbonizing and removing the hard template to obtain the defect-rich ordered mesoporous carbon carrier; then, the defect-rich ordered mesoporous carbon loaded metal-based catalyst is obtained through the steps of dipping in a metal precursor solution and chemical reduction. Importantly, according to the defect-rich ordered mesoporous carbon carrier prepared by the method, the inherent defect density and type can be easily regulated and controlled by changing the adding amount and type of the defect-causing agent. The metal nanoparticle catalyst loaded by the defect-rich ordered mesoporous carbon shows excellent activity and improved stability as a methanol electrocatalytic oxidation catalyst carrier, and has good application value in the field of methanol energy conversion.

This invention discloses a low surface energy active-passive synergistic antifouling coating and its preparation method, belonging to the field of marine antifouling materials technology. The preparation method of the antifouling coating includes the following steps: S1, mixing acetone and xylene and stirring under a nitrogen atmosphere to form a mixed solvent; S2, adding vinyl-terminated silicone resin and acrylic resin to the mixed solvent, stirring and heating to obtain a coating base liquid; S3, adding an initiator to the coating base liquid and continuously stirring and heating to react; S4, after the reaction is complete and the coating base liquid cools, adding functional fillers to form a coating liquid; S5, coating the coating liquid and drying to obtain a low surface energy active-passive synergistic antifouling coating. The low surface energy active-passive synergistic antifouling coating prepared by this invention solves the problem in existing marine antifouling technologies where the single antifouling mechanism prevents the simultaneous consideration of environmental friendliness and long-term effectiveness, and has broad application prospects in the field of marine antifouling materials technology.

The present invention belongs to the technical field of polymer polyols, and specifically relates to a dendritic macromolecular dispersant and a preparation method and application thereof. The preparation method comprises: (1) using sorbitol and alkylene oxide to carry out polymerization reaction to obtain a low molecular weight polyether; (2) esterifying the low molecular weight polyether with 2,2-dimethylol propionic acid to obtain a polyester ether intermediate; (3) polymerizing the polyester ether intermediate with alkylene oxide again to obtain a dendritic polyether; (4) prepolymerizing the dendritic polyether with an unsaturated isocyanate to obtain a dendritic macromolecular dispersant. The present invention can reduce the viscosity of the macromolecular dispersant and the synthesized polymer polyol on the one hand by optimizing the branched structure of the macromolecular dispersant, and on the other hand can enhance its anchoring ability to polymer particles, thereby improving the stability of styrene-acrylonitrile copolymer particles in the polymer polyol.

The invention discloses an organic phosphorus wastewater degradation and phosphorus recovery experimental device and method, and particularly relates to the field of organic phosphorus wastewater treatment.The organic phosphorus wastewater degradation and phosphorus recovery experimental device comprises an electric reaction box, a recovery reaction unit capable of performing electrochemical reaction is arranged in the electric reaction box, and a water inlet pipe and a water outlet pipe are arranged between the two sides of the recovery reaction unit and the electric reaction box respectively; the recovery reaction unit comprises a water storage reaction box, a Fe3O4-coated N-GO negative plate and a titanium platinum positive plate are arranged in the water storage reaction box, the Fe3O4-coated N-GO negative plate is used for preparing Fe3O4-coated N-GO by adopting a one-step hydrothermal method, the Fe3O4-coated N-GO is loaded on an electrode, and the Fe3O4-coated N-GO negative plate has excellent electron transfer efficiency and catalytic activity. The organic phosphorus wastewater can be completely degraded within 40 minutes, and the PO4 < 3-> conversion rate is 35%; by constructing a continuous operation system for electrochemical degradation and recovery of the organophosphorus wastewater, efficient degradation and detoxification of the organophosphorus wastewater are realized, released phosphorus is recovered, and the method has practical significance of reducing treatment cost and increasing economic benefits.

The invention belongs to the field of oil and gas field development, and discloses a drillable and grindable high-water-content horizontal well plugging tool and a using method.The plugging tool comprises a first connector and a connecting sleeve which are connected with one end of a bridge plug body, and a second connector and a lifting sleeve which are connected with the other end of the bridge plug body; according to the plugging tool, the pressure of the inner cavity of the mandrel acts on the main piston and the auxiliary piston; the main piston drives a nut, a central pipe, a second joint, a rubber sleeve shaft and a second cone to move upwards and extrudes the lower part of the slip to move upwards; the auxiliary piston drives the taper sleeve and the first cone to move downwards to extrude the upper part of the slip to move downwards, so that the slip is expanded to anchor the sleeve and the rubber sleeve is compressed to block an upper oil layer and a lower oil layer; the plugging tool combination can be installed at a reasonable position as required according to the plugging requirement of a water outlet point of a middle-high water content horizontal well, a swabbing production layer section can be converted by lifting and lowering a pipe column at a wellhead, the requirement of two-section and three-section separated mining is met, an oil pipe does not need to be directly connected with a separated mining tool, and the reliability is improved.

The present application discloses a valve stent and a prosthetic valve assembly, wherein the valve stent comprises an inner stent and an outer stent connected to each other; the inner stent comprises at least two first extensions, the first extensions face the outer stent and form a first angle with the inner stent; the outer stent comprises at least two second extensions, the second extensions face the inner stent and form a second angle with the outer stent; each first extension is correspondingly connected to the second extension; at least one of the first angle and the second angle is not a right angle. In the above manner, the present application can enhance the anchoring effect of the valve stent on native heart tissue.

The invention discloses a preparation method of a Ni-based catalyst for synthesizing CHDA, which comprises the following steps: grinding biomass carbon, a nitrogen source and nickel salt as raw materials, and performing high-temperature carbonization in a tubular furnace in a nitrogen atmosphere to obtain a powdery nitrogen-doped catalyst; sodium carboxymethyl cellulose and a powdery nitrogen-doped catalyst are subjected to kneading, tabletting and heat treatment in a tubular furnace in a nitrogen atmosphere to obtain a columnar catalyst, the columnar catalyst is crushed and then filled in a reaction tube, and a product is obtained through gas reduction. The invention also discloses application of the Ni-based catalyst for synthesizing CHDA, water is taken as a solvent, terephthalic acid is taken as a raw material, a product CHDA is synthesized through hydrogenation in a fixed bed reactor, and the Ni-based catalyst is embedded in the fixed bed reactor. According to the invention, aggregation and leaching of Ni can be effectively limited, the hydrothermal stability of the catalyst is improved, the anchoring capability of the carrier to Ni nanoparticles is enhanced, the dispersity of the active component Ni is improved, and the activity of the catalyst is improved.

The application discloses a platinum-rhenium alloy catalyst, a preparation method and a fuel cell. The preparation method of the platinum-rhenium alloy catalyst comprises the following steps: (1) dispersing a carbon carrier, a platinum source and an alkaline substance in ethylene glycol to perform a microwave reaction, acidifying and depositing the solution after the reaction, performing water washing and drying to obtain a Pt / C precursor; (2) dispersing the Pt / C precursor, a phosphorus source and a rhenium precursor in water to perform ultrasonic treatment, evaporating and drying after the treatment, and grinding to obtain a platinum-rhenium alloy catalyst precursor; and (3) performing calcination treatment on the platinum-rhenium alloy catalyst precursor in an inert atmosphere, grinding after the treatment, and obtaining the platinum-rhenium alloy catalyst. The platinum-rhenium alloy catalyst is prepared through a two-step method, the phosphorus source is pyrolyzed at high temperature, rhenium is alloyed with platinum, the problem that platinum and rhenium cannot be reduced at the same time due to the difference in reduction potential is solved, and a new idea is provided for the preparation of the platinum-rhenium alloy.

The application discloses a high water pressure resistant, low temperature flexible waterproof and moisture permeable composite fabric and a preparation method thereof. The modified nano silicon dioxide has a nano scale effect, can efficiently shield ultraviolet radiation, and has chemical stability, endowing the material with inherent ability to resist external salt corrosion, and builds a double barrier of resistance to ultraviolet and salt corrosion in the fiber. The micro-nano surface topology of the pine needle shell layer increases the effective exposed area of the modified nano silicon dioxide, optimizes the functional interface, and the axial hollow cavity forms a stress buffer channel in the fiber, reduces the damage of external mechanical stress to the modified nano silicon dioxide dispersion structure to maintain uniform distribution. The high efficiency shielding and chemical resistance of the modified nano silicon dioxide resist ultraviolet penetration and salt erosion, and the micro-nano structure and hollow cavity of the pine needle shell layer maintain low temperature flexibility, and realize the balance of high water pressure resistance, waterproof and moisture permeability and resistance to ultraviolet and salt corrosion.

The invention relates to the technical field of high polymer materials, and discloses a polyester release master batch as well as a preparation method and application thereof. According to the release master batch, polyester resin is used as a matrix, specific modified organic silicon resin is introduced, and the organic silicon resin is prepared from polydimethylsiloxane containing silicon-hydrogen bonds, multiple hydrogen bond unit monomers containing unsaturated double bonds and fluorine-containing chain segment monomers through a hydrogen-silicon addition reaction. Multiple hydrogen bond groups and fluorine-containing alkyl chain segments are introduced to the same molecular chain at the same time, so that the resin is endowed with temperature responsiveness, excellent dispersity in a polyester matrix and ultralow surface energy after film formation. The polyester release master batch is prepared by adopting a melt blending extrusion process, and then the polyester release master batch and the polyester resin are blended and stretched to prepare the release film, so that the release film has stable and adjustable release force and excellent fingerprint resistance and pollution resistance, keeps good transparency and dimensional stability, and is suitable for the fields of electronic packaging, optical protection films, die cutting materials and the like.

The invention belongs to the technical field of catalysts, and particularly relates to a bifunctional catalyst for hydro-conversion and deoxidation of organic sulfur in feed gas and a preparation method of the bifunctional catalyst. The catalyst comprises a carrier, an active component I, an active component II, an active aid, a release agent and a pore forming agent. The carrier is modified in a coprecipitation mode, and the negative effects of high-temperature sintering, structural damage and the like are inhibited. The acid and the active auxiliary agent which can interact with the active component are added, so that activity reduction caused by relatively strong acting force between the active component and the carrier and embedding of the active component into a carrier crystal lattice is avoided, and the hydrodesulfurization and deoxidation performance of the catalyst is improved. The pore-forming agent is introduced in the preparation process, so that a rich pore structure can be constructed, the reaction active sites and the diffusion rate of macromolecular organic sulfur on the surface of the catalyst are increased, and the technical problems of pore blockage, catalyst deactivation and the like caused by carbon deposit are effectively solved.

The invention discloses a cobalt-based catalyst and a preparation method and application thereof, and belongs to the technical field of catalysts. The method comprises the following steps: (1) adding an HY molecular sieve into a nitric acid solution, and stirring for reaction to obtain a reaction product; (2) performing vacuum filtration on the reaction product to obtain a solid product, and sequentially washing and drying the solid product; (3) calcining the dried solid product to obtain an acid modified HY molecular sieve; (4) adding an accelerant and cobalt salt into distilled water, and stirring to obtain a mixed solution; (5) adding the acid-modified HY molecular sieve into the mixed solution, stirring, heating, and carrying out suction filtration to obtain a precipitate; and (6) sequentially washing and drying the precipitate, and calcining to obtain the cobalt-based catalyst. The cobalt-based catalyst with high dispersion and high anchoring stability is prepared through acid modification of the HY molecular sieve carrier and combination of an accelerant and auxiliary ion exchange, and the cobalt-based catalyst shows relatively stable high catalytic activity on a propane dehydrogenation reaction and has stable high selectivity on propylene at the same time.

This invention relates to the field of oil and gas well fracturing technology, specifically disclosing a downhole bridge plug, including a central cylinder. A setting tool is provided on one side of the central cylinder, and a perforating gun is provided on one side of the setting tool. A movable cylinder is provided on the outer wall of the central cylinder, and a first anti-outburst ring is provided on the outer wall of the central cylinder. A first rubber sleeve is fixedly installed at the bottom of the first anti-outburst ring, and a first anti-outburst ring is also provided at the bottom of the first rubber sleeve. A second rubber sleeve is provided on the outer wall of the central cylinder, and a second anti-outburst ring is fixedly installed at both the top and bottom of the second rubber sleeve. This invention can effectively protect the bridge plug body through the protective components, avoiding damage to the bridge plug body caused by burrs protruding from the inner wall of the casing and casing deformation points during tool string advancement, which would lead to sealing failure. At the same time, during sealing, the cover plate is pressed against the inner wall of the casing for support, ensuring the stability of the operation, ensuring the sealing effect, and improving the overall fracturing operation efficiency.

The present application relates to the technical field of fireproof coating, and particularly discloses a basalt flake-based high-temperature-resistant fireproof coating, which comprises the following raw materials in parts by weight: 25-40 parts of basalt flake, 20-30 parts of borosilicon resin, 30-45 parts of organic silicon resin, and 0.5-2 parts of tetrabutyl titanate. The present application also discloses a preparation method of the basalt flake-based high-temperature-resistant fireproof coating. The prepared high-temperature-resistant fireproof coating can withstand long-time high temperature above 800 DEG C and short-time extreme high temperature of 2000 DEG C.

The invention discloses a patch type slip structure for anchoring a high-strength casing of an oil-water well. The problems that an existing integrated slip is not firm in anchoring with a casing due to insufficient strength, and the cost is increased due to the fact that the slip is easy to break are mainly solved. The slip is characterized in that two slip grooves (11) are formed in the slip base body (1), the slips (2) are arranged in the slip grooves (11) respectively, and a spring piece (6) is connected to the side, opposite to the slips (2), of the slip base body (1). According to the patch type slip structure for anchoring the high-strength casing pipe of the oil-water well, the slip base body and the slip are separately machined, machining is convenient, cost is reduced, and the strength of the slip is improved so that the slip can not be broken easily.

The invention belongs to the technical field of power construction, and particularly discloses a ground anchor for power construction, which comprises a main rod, a top plate is fixedly connected to the upper side of the main rod, connecting rings are fixedly connected to the periphery of the top plate, a first rotating rod is rotatably connected to the upper side of the top plate, and a first rotating handle is fixedly connected to the upper side of the first rotating rod. A first rotating rod is rotatably connected to the upper side of the top plate, a first circular gear is fixedly connected to the bottom of the first rotating rod, a second rotating rod is rotatably connected to the upper side of the top plate, and a second rotating handle is fixedly connected to the upper side of the second rotating rod. And a rotating shaft drives a second lead screw to rotate, an extrusion block slides downwards to extrude a rotating plate, meanwhile, the rotating plate is driven to rotate, an anchoring block slides to be further clamped with the ground, and the fixing effect on the ground anchor is enhanced.

The utility model discloses an insert type spine self-stabilization type fusion cage, which belongs to the technical field of fusion and comprises a fusion cage body, a bone grafting cavity is arranged on the fusion cage body, a mounting inlet is arranged on one side of the fusion cage body, and two groups of mounting outlets are arranged on one side of the fusion cage body opposite to the mounting inlet. A fixing clamp is mounted on the fusion cage body and penetrates through the mounting inlet and the mounting outlet; a mounting inlet is formed in the fusion cage body, a connecting groove and a threaded groove are formed in the two sides of the fusion cage body respectively, the connecting groove and the threaded groove are formed in the two sides of the mounting inlet respectively, and the fusion cage body is mounted through a holding device.

The application provides a diamine compound, a polyamide acid, a liquid crystal alignment agent, a liquid crystal alignment film and a liquid crystal display panel, which can improve the anchoring effect on liquid crystal molecules and realize stable alignment control of the liquid crystal molecules. The diamine compound provided by the application has a structure as shown in formula 1.

The invention provides a braid type in-tumor turbulence device, and relates to the technical field of turbulence devices, the braid type in-tumor turbulence device comprises a net disc assembly, the net disc assembly comprises a first net disc and a channel net disc, the first net disc is attached to the inner wall of a tumor sac, the channel net disc is provided with a fluid channel opened towards a tumor neck opening, and an outer ring of the fluid channel is connected with the first net disc; the connecting piece is connected with an inner ring of the fluid channel, and the connecting piece is further provided with a through connecting port; the sealing element moves to selectively open or close the connecting port; the woven mesh is made of a shape memory material, the woven mesh is suitable for entering the tumor sac through the connecting port, the woven mesh is suitable for filling the tumor sac and being attached to at least part of the inner wall of the tumor sac, one end of the woven mesh is connected with the sealing piece, and the other end of the woven mesh is connected with the first mesh disc and / or the outer ring. According to the knittable intra-tumor turbulent flow device, the net disc assembly can form preliminary turbulent flow on blood, the woven net can form further turbulent flow on the blood, and the turbulent flow effect on the blood is improved.

The application discloses a kind of broken rock mass side slope low disturbance strip root pile-grouting rock mass-anchor cable reinforcement system and its construction method, the reinforcement system includes root pile group, grouting rock mass and prestressed anchor cable, the root pile group is sequentially penetrated by upper and lower strong deformation zone of broken rock mass, weak deformation zone and then stretches into stable rock mass, the grouting rock mass is located on strong deformation zone, the prestressed anchor cable is sequentially penetrated by upper and lower grouting rock mass, strong deformation zone and weak deformation zone and then stretches into stable rock mass.The reinforcement system of the application only needs to drill root pile group in certain elevation strip of side slope downward, without large-scale excavation support, can prevent side slope instability caused by construction disturbance to the greatest extent.Form one or more long and thick root pile and grouting rock mass strip on broken rock mass side slope by root pile group and grouting between piles, the strip is good in integrity, can bear greater anchoring force, and anchoring effect is stronger.

The invention discloses a lithium magnesium nitrogen hydrogen composite material uniformly coated with a polymer and a preparation method thereof, which belongs to the field of solid hydrogen storage, and the steps include: adding nanometer lithium magnesium nitrogen hydrogen particles and a dispersant containing an electron donor group to a solvent, mixing into a dispersion slurry, taking a polymer carrier and adding it to the solvent, preparing a polymer solution, adding the polymer solution to the dispersion slurry, stirring and then standing for aging, centrifugation and drying to obtain a lithium magnesium nitrogen hydrogen composite material uniformly coated with a polymer. The nanoparticles in the solvent are in a stable dispersed state separated from each other, which is convenient for the polymer carrier to uniformly coat the nanoparticles. The polymer carrier can be combined with the extended chain segment of the organic dispersant adsorbed on the surface of the nanoparticles, so that the polymer carrier is more uniformly coated on the surface of a single nanoparticle and is not easy to stack, thereby reducing the amount of the polymer carrier, and the method can be scaled, cost-controlled, does not involve high pressure, and can be made into a composite material with stable hydrogen absorption and release capabilities.

The utility model relates to the technical field of automobile auxiliary appliance, especially a parking wedge with high friction force, including wedge body, its characterized by: the upper surface of wedge body constructs and is used for increasing the texture structure of friction force, the wedge body is prepared from polyethylene, the bottom of wedge body is equipped with friction iron sheet structure, the side of wedge body is provided with reinforcing rib, reinforcing rib stretches along the length direction of wedge body, the parking wedge of the application adopts polyethylene wedge body, and is light and weather resistant, the upper surface diamond texture increases tire friction force, the bottom friction iron sheet sets up rectangular array three -dimensional convex, and the ground anchoring is strengthened by bolt fixing, the spring array between iron sheet and wedge body buffers impact, and the adaptive pressure regulating is carried out, the side reinforcing rib optimizes stress, and the compression resistance and deformation resistance are realized, and each structure cooperates to realize efficient antiskid and stable support, and the complex environment is adapted.