149results about How to "Stop erosion" patented technology

The invention relates to the field of arid region oasis ecological protection, and discloses an arid region oasis protective barrier construction pattern and plant species configuration method, according to the characteristics of the arid region oasis structure, a protective barrier is laid, and according to the habits, uses and morphological characteristics of plants and the functional difference of different plants, the arid region oasis protective barrier construction pattern is constructed. Proper arbor, shrub and herbaceous plant configuration is carried out, and the method comprises the steps that a photovoltaic, mechanical sand stabilization and shrub and grass sand blocking belt is constructed in the edge zone of the desert, a windproof backbone forest is arranged at the junction of the desert and the oasis, forest network construction is carried out in a farmland area in the oasis, and greening and beautifying are carried out on the periphery and the interior of a residential area. By constructing a multi-layer and multifunctional oasis protection barrier system, desertification control and oasis protection system construction are achieved, regional economic development and biodiversity recovery are promoted, and the win-win situation of ecological benefits and economic benefits is achieved.

The invention relates to a high-strength wear-resistant polyethylene gas pipeline and a preparation method thereof, and belongs to the technical field of high polymer materials. The high-density polyethylene, the modified ethylene propylene diene monomer, the modified chlorinated polyethylene rubber, the modified basalt fiber, the silicon carbide ceramic material, the magnesium oxide, the lubricant, the hindered amine light stabilizer, the hindered phenol antioxidant, the antistatic agent and the like are adopted as raw materials for compounding; and according to the material properties and dispersion characteristics of all the components, the process steps and parameters of mixing, banburying, extruding and the like are designed, so that the production of the pipeline can be well realized, and the gas pipeline with uniform quality and excellent performance is obtained. The compressive strength, the impact resistance and the wear resistance of the pipeline are greatly improved, the weather resistance of the pipeline is effectively improved, the service performance of the pipeline is comprehensively improved, the service life of the pipeline is comprehensively prolonged, and the pipeline is more suitable for being used in various severe environments, can meet the use requirements of long-distance construction, long-term friction and high-pressure environments and can be widely applied to high, medium and low-pressure gas conveying. Civil and industrial fuel gas conveying is achieved.

The invention relates to the field of recycled concrete, and discloses a high-strength recycled concrete formula and a preparation method thereof, the high-strength recycled concrete formula comprises the following raw materials by weight: 180-240 parts of cement, 600-800 parts of hydrophobic modified recycled coarse aggregate, 180-280 parts of recycled fine aggregate, 400-600 parts of sand, 300-500 parts of fly ash, 60-120 parts of silica fume, and 20-30 parts of a water reducer, the modified waste rubber powder is prepared from, by weight, 25-35 parts of modified waste rubber powder, 10-40 parts of polyethylene wax, 2-4 parts of m-phenylenediamine and 12-16 parts of tetramethyl orthosilicate. In the invention, by using a large amount of recycled aggregate (coarse aggregate and fine aggregate), the exploitation of new natural resources is effectively reduced, the reutilization rate of building wastes is improved, and by optimizing the proportion and adding a plurality of modifiers (such as silica fume, fly ash, modified waste rubber powder and the like), the mechanical properties such as compression resistance, fracture resistance and the like of the concrete are remarkably improved; by adding the hydrophobic modified recycled coarse aggregate and the penetrant, the impermeability and durability of the concrete are enhanced, so that the performance and the application range of the recycled concrete are improved.

The invention discloses a method for improving the efficiency of a perovskite solar cell, and belongs to the technical field of solar cells. The insulating spacer film prepared between the electron transport layer and the perovskite layer of the perovskite solar cell by adopting the electron beam evaporation method has high uniformity, the cell interface structure can be optimized, defects are reduced, charge recombination loss is reduced, and the photoelectric conversion efficiency and stability are effectively improved. The insulating spacer layer not only can block external moisture and pollutants, reduce direct contact between the perovskite layer and the electron transport layer and prolong the service life of the cell, but also can inhibit internal ion migration and slow down performance degradation. By accurately regulating and controlling the thickness of the insulating spacer layer, charge transmission optimization and compound loss minimization are realized. An innovative technical path is provided for research and development of efficient and stable perovskite solar cells, and further development of the solar cell technology is expected to be promoted.

The invention relates to the technical field of high polymer materials, and discloses an antibacterial polyethylene composite material which comprises the following raw materials: polyethylene, maleic anhydride grafted polyethylene, a composite antibacterial filler, furyl silicone rubber, an antioxidant, an ultraviolet light absorber, a plasticizer, a stabilizer and a lubricant. The composite antibacterial filler and the furyl silicone rubber are prepared to participate in the preparation process of the polyethylene composite material, so that the prepared polyethylene composite material has excellent antibacterial effect, corrosion resistance, wear resistance and toughness, also has a good hydrophobic effect, can effectively prevent bacterial erosion, and has a good antibacterial effect. The use requirements in the fields of medical instruments, food packaging and the like are met, and the service life is long.

The invention discloses a nickel plating process for a neodymium iron boron permanent magnet. A sulfate zinc plating layer, a cyanide-free copper-zinc alloy plating layer, a bright nickel plating layer and a rare earth electrolysis protection film are sequentially prepared on a neodymium iron boron permanent magnet base body from inside to outside. According to the cyanide-free copper-zinc alloy electroplating process, 18-24 g / L of polycuprous thiocyanate, 9-13 g / L of polyzinc thiocyanate, 130-170 g / L of polysodium thiocyanate and 8-12 mL / L of a copper-zinc alloy electroplating brightener are adopted, the pH value of a plating solution is 10-12, the temperature of a plating bath is 35-55 DEG C, the cathode current density is 0.5-1.5 A / dm < 2 >, the cathode movement speed is 3-5 m / min, a brass plate is used as an anode, and the anode movement speed is 3-5 m / min. A prepared sample piece is subjected to a neutral salt spray test for 100 h according to the GB / T 10125-2021 standard, and the surface of the sample piece is not rusted, and a plating layer has excellent corrosion resistance.

The invention discloses an anti-aging and anti-corrosion coating and a preparation method thereof, and relates to the technical field of coatings. When the anti-aging and anti-corrosion coating is prepared, firstly, tetramethyl tetravinyl cyclotetrasiloxane, n-butyllithium and dimethyl-3-chloropropyl chlorosilane react to obtain modified polysiloxane, then 4-vinylpyridine, methyl methacrylate and n-butyl acrylate are copolymerized and then react with the modified polysiloxane, and then bis (4-chlorphenyl) phosphine is grafted to obtain the anti-aging and anti-corrosion coating. Finally, reacting with p-aminodiphenylamine to obtain modified acrylic resin; secondly, enabling the titanium dioxide nanosheet pretreated by 3-aminopropyltrimethoxysilane to react with ester phthalocyanine, and then hydrolyzing to obtain a modified titanium dioxide nanosheet; finally, mixing the modified acrylic resin, the modified titanium dioxide nanosheet, a solvent, a dispersing agent and a defoaming agent to obtain the anti-aging and anti-corrosion coating. The anti-aging and anti-corrosion coating prepared by the invention has excellent anti-aging, anti-corrosion, flame-retardant and antibacterial properties.

The invention provides a nickel-chromium alloy coating, a preparation method thereof and a high-temperature alloy, and the nickel-chromium alloy coating comprises the following components in percentage by mass: 33-48% of Ni, 1-5% of NH4Cl, 1-10% of FeAl, 1-10% of Al2O3, 1-10% of Si, 3-8% of Al, 0.2-0.8% of rare earth element and the balance of Cr. Through the alloying effect of nickel and chromium, a stable passivation layer is formed in the coating, corrosion of a corrosive medium to a matrix can be effectively prevented, and the corrosion resistance of the coating is improved. Through the synergistic effect of nickel and chromium, the coating can form a compact oxidation film at high temperature. The coating has better thermal conductivity and is suitable for coating the inner surface and the outer surface of the boiler. According to the invention, wettability and diffusivity between the coating and the matrix can be improved, and chemical bonding between the coating and the matrix is promoted, so that the coating is not easy to peel off or damage on the matrix, and the nickel-chromium alloy coating and the matrix have good bonding performance.

The invention relates to the field of welding materials of austenitic stainless steel, in particular to a flux-cored wire based on concentrated nitric acid corrosion-resistant austenitic stainless steel and a preparation method, and aims to solve the problems that an existing welding material of the austenitic stainless steel is poor in concentrated nitric acid corrosion resistance, intergranular corrosion and stress corrosion cracking are prone to occurring in a concentrated nitric acid environment, and the welding quality is poor. Therefore, the service life and the safety of the equipment are influenced. According to the austenitic stainless steel flux-cored wire, by optimizing the chemical components and the preparation process, the corrosion resistance and the welding performance of the welding wire in a concentrated nitric acid environment are remarkably improved, the use requirements in a high-corrosion environment can be met, and a welded joint has high strength and toughness; the performance requirement of an engineering structure on a welding joint can be met; the austenitic stainless steel flux-cored wire is suitable for welding equipment, pipelines and structures in contact with concentrated nitric acid in the industries of chemical engineering, petrochemical engineering, pharmacy and the like, and has wide application prospects.

The invention discloses a leukemia chemotherapy patient intravenous drug extravasation protection device, and relates to the technical field of medical apparatuses and instruments, the leukemia chemotherapy patient intravenous drug extravasation protection device comprises a monitoring fluid break assembly, the monitoring fluid break assembly comprises an infusion table and two side plates, the two side plates are symmetrically and fixedly connected to the two sides of the infusion table, and the top ends of the sides, away from each other, of the two side plates are each fixedly connected with a square column; the two square columns are each connected with a sliding plate in a sliding mode, and the surfaces of the two square columns are each sleeved with a first spring. Intravenous medicine exosmosis of a patient is monitored through the absorbent paper, a subsequent structure is triggered, medicine circulation in the infusion tube is cut off, intravenous infusion can be stopped at the first time, and the situation that the patient cannot find medicine exosmosis in time, and consequently chemotherapy medicine is continuously exosmosis, and the chemotherapy effect is affected is prevented. The problem that the skin necrosis range of the exosmosis part is further expanded is solved, the effect of stopping the chemotherapy medicine can be achieved, and waste of the chemotherapy medicine is avoided.

The invention relates to the technical field of casting powder, in particular to special casting powder for 2520 heat-resistant stainless steel and a preparation process of the casting powder. The high-temperature-resistant ceramic comprises the following components: 30-40 parts by weight of calcium oxide, 15-20 parts by weight of aluminum oxide, 8-12 parts by weight of zirconium oxide powder, 5-10 parts by weight of silicon dioxide, 10-15 parts by weight of manganese oxide, 3-5 parts by weight of titanium dioxide, 3-5 parts by weight of calcium fluoride, 8-10 parts by weight of a stabilizer and 3-5 parts by weight of rare earth element oxide. The zirconium oxide powder is prepared from zirconium chloride and yttrium nitrate through a coprecipitation method; the stabilizer is obtained by depositing aluminum oxide and silicon dioxide on the surface of magnesium oxide; the rare earth element oxide is a mixture of cerium oxide and lanthanum oxide. A layer of aluminum oxide and silicon dioxide composite coating is deposited on the surface of magnesium oxide, a layer of compact physical barrier is formed on the surface of magnesium oxide, erosion of harmful components in slag to magnesium oxide is effectively prevented, and the corrosion resistance of magnesium oxide is remarkably improved.

The invention relates to the technical field of aluminum alloys, in particular to a high-strength corrosion-resistant aluminum material and a preparation method thereof. The preparation method comprises the following steps: mixing a chitosan corrosion inhibitor, an amino acid corrosion inhibitor, polysulfone, lignosulfonate and other raw materials to obtain a microcapsule corrosion inhibitor; and adding the microcapsule corrosion inhibitor into a dopamine solution, and carrying out stirring reaction to obtain the dopamine microcapsule corrosion inhibitor. Adding the dopamine microcapsule corrosion inhibitor and the curing agent into epoxy resin to obtain an epoxy resin coating; and the surface of the pretreated aluminum profile is coated with epoxy resin paint, and a finished product is obtained. The finished product prepared through the method has good corrosion resistance, durability and crack resistance, and therefore the finished product has wide application prospects in the technical field of aluminum alloy.

The invention particularly relates to a lightweight periclase-spinel aggregate and a preparation method thereof. According to the technical scheme, the preparation method comprises the following steps: taking 50.0-90.0 wt% of light calcined magnesia fine powder and 10.0-50.0 wt% of aluminum hydroxide fine powder as raw materials, adding 2.0-5.0 wt% of nickel oxide fine powder and 2.5-5.0 wt% of polyvinyl alcohol, uniformly stirring, carrying out mechanical pressing, and drying; and carrying out heat preservation for 1-3 hours at the temperature of 500-1000 DEG C, then carrying out heat preservation for 1-4 hours at the temperature of 1400-1600 DEG C, cooling, crushing, screening and packaging to obtain the lightweight periclase-spinel aggregate. According to the technical scheme, the particle size of the light calcined magnesia fine powder is smaller than 10 microns; the particle size of the aluminum hydroxide fine powder is 500-800 [mu] m; the particle size of the nickel oxide fine powder is smaller than 10 micrometers. The lightweight periclase-spinel aggregate prepared by the invention has the characteristics of high closed porosity, small pore size, high strength, excellent erosion resistance and low heat conductivity coefficient.

The invention discloses an anti-seepage brick for an electrolytic cell lining and a preparation method thereof, the anti-seepage brick comprises an aluminum silicate mixture, the aluminum silicate mixture is composed of at least three of pyrophyllite, flint clay, clay, silica, albite and potassium feldspar, a potassium silicate eutectic and a fine powder sintering aid are added, the materials are uniformly mixed, a binding agent is added for granulation, mechanical pressing molding is performed, and high-temperature sintering is performed; the aluminum silicate mixture is prepared from the following raw materials in parts by weight: 50 to 75 parts of pyrophyllite, 20 to 42 parts of flint clay, 1 to 8 parts of albite and 1 to 5 parts of potassium silicate eutectic. The invention relates to the technical field of anti-seepage bricks, and particularly provides an anti-seepage brick for an electrolytic cell lining and a preparation method of the anti-seepage brick.

The invention discloses an integrated geotechnical bag side slope protection system and an assembly type construction method thereof, relates to the technical field of side slope protection engineering, and aims to solve the problems that filling aggregates in traditional geotechnical bags are usually single, the stacking mode between the geotechnical bags is simple and direct, the integrity between bag bodies is poor, and the construction cost is high. The geotextile bag has the problems of low strength, easiness in breakage, difficulty in degradation and the like, and comprises a standard geotextile bag 1, a standard geotextile bag 2, filler and a connecting structure. The high-strength environment-friendly building material has good strength and environment-friendly performance. By means of the reasonably-designed connecting structure, firm connection of a plurality of geotechnical bags can be achieved, a continuous protective wall is formed, the phenomena of water and soil loss, erosion, landslide and the like are effectively prevented, the safety and stability of civil engineering are improved, meanwhile, green plants are planted on the upper layers of the geotechnical bags, pollution to the environment is avoided, and the requirements for environmental protection and attractiveness are met.

The invention discloses a CMAS corrosion resistant high-entropy ceramic material and a preparation method thereof, the chemical formula of the high-entropy ceramic material is (YGdErDy) 2 (1-x) Yb2xZr2O7, and x < lt > is greater than or equal to 0; the preparation method comprises the following steps: preparing oxide raw materials according to the chemical composition of the high-entropy ceramic material, carrying out first-time ball milling on the oxide raw materials to obtain mixed powder, pre-sintering the mixed powder to obtain pre-sintered powder, carrying out second-time ball milling on the pre-sintered powder to obtain pre-sintered ball-milled powder, granulating the pre-sintered ball-milled powder to obtain granulated powder, carrying out compression molding on the granulated powder to obtain a green body, and sintering the green body to obtain the high-entropy ceramic material. And sintering the green body to obtain the high-entropy ceramic material. The high-entropy ceramic material provided by the invention has excellent high-temperature stability and CMAS corrosion resistance.

The invention discloses a high-temperature-resistant and erosion-resistant composite material for a plasma gasifier and a preparation method thereof, belongs to the technical field of high-temperature-resistant composite materials, and aims to solve the technical problem that the high-temperature-resistant and erosion-resistant performance of a ramming composite material for the plasma gasifier in the prior art needs to be further improved. The silicon nitride reinforced silicon carbide composite material comprises the following components in parts by weight: 50-70 parts of aggregate, 25-45 parts of powder and 5-8 parts of a binding agent, the component of the aggregate is a silicon binding material, and the aggregate is composed of coarse aggregate, medium aggregate and fine aggregate according to the weight ratio of (30-40): (40-50): (30-50). The particle size distribution of the aggregate and the composition of the powder and the binding agent are optimized, so that the high-temperature erosion resistance and the volume density of the composite material are effectively improved, and the heat-conducting property of the composite material is also reduced.

The invention relates to the technical field of stainless steel, in particular to a high-hardness stainless steel band which comprises a stainless steel band body, a primary nitriding treatment nitride layer, a laser cladding high-entropy alloy layer and a secondary nitriding treatment nitride layer. The laser cladding high-entropy alloy layer is obtained by cladding alloy powder on the stainless steel band with the primary nitriding treatment nitride layer through laser, and the alloy powder comprises iron, cobalt, nickel, aluminum and vanadium elements with equal molar weight. The high-hardness stainless steel band has the effect of improving the strength, hardness, wear resistance and corrosion resistance of the stainless steel band, and the high-hardness stainless steel band can keep good working performance for a long time in a severe working condition environment.

The invention relates to the technical field of cables, and provides a waterproof cable for a submersible pump, the waterproof cable comprises a conductor, an insulating layer and a sheath layer which are sequentially arranged from inside to outside, and the sheath layer comprises the following raw materials in parts by weight: 50-60 parts of ethylene propylene diene monomer, 10-15 parts of bentonite, 1-3 parts of an antioxidant, 2-4 parts of a plasticizer and 0.5-1.5 parts of a cross-linking agent; the bentonite is composed of sodium bentonite and lithium bentonite, and the mass ratio of the sodium bentonite to the lithium bentonite is (1-5): 1. According to the technical scheme, the problems of poor waterproof performance and poor corrosion resistance of the waterproof cable for the submersible pump in the prior art are solved.

The invention relates to the technical field of silver powder preparation, in particular to a method for improving the oxidation resistance of nano silver powder. The method for improving the oxidation resistance of the nano-silver powder comprises the following steps that S1, the nano-silver powder is added into water dispersion liquid, stirring and dispersing are conducted, and silver powder dispersion liquid is obtained; s2, the silver powder dispersion liquid is subjected to vacuum suction filtration, and a filter cake is obtained; s3, adding the filter cake into an organic solvent, stirring and dispersing, adding a coating auxiliary agent, and stirring to obtain silver powder organic dispersion liquid; s4, the silver powder organic dispersion liquid is subjected to vacuum suction filtration, and silver powder is obtained; s5, the silver powder obtained after suction filtration is dried; and S6, the dried silver powder is subjected to airflow dispersion, and the modified silver powder is obtained. Through the surface modification technology, erosion of oxygen and moisture to internal silver is prevented, the oxidation resistance of the silver powder is obviously improved, the conductivity of the silver electrode is improved, and the purity is high.

The invention provides a polymeric monomer, a solid electrolyte, a preparation method of the solid electrolyte, a lithium ion battery and electric equipment, and relates to the technical field of lithium ion batteries. The structural formula of the polymeric monomer is # imgabs0 #, wherein R0 is selected from saturated alkyl, unsaturated alkyl, aryl and a group containing non-carbon atoms; r1, R2, R3, R4, R5 and R6 each independently comprise an acrylic acid group or a hydroxyl group. The polymeric monomers are efficiently cross-linked to form a three-dimensional network, and the polymeric monomers can improve the thermal safety performance of the battery and also can reduce side reactions between an electrode and an electrolyte.

The present invention provides a novel organic electron transport layer, a perovskite solar cell and a preparation method and application thereof, wherein the battery structure comprises an anode (ITO glass), a hole transport layer, a perovskite layer, an organic electron transport layer and a cathode. The preparation method of the organic electron transport layer is to dissolve m-ITTC molecules with long chains in a chlorobenzene solution of PCBM, and directly spin-coat them on the perovskite layer to form a high-quality organic electron transport layer film for electron transmission, with a photoelectric conversion efficiency of 8.37193%. The doping of m-ITIC can alleviate the aggregation of PCBM, so that the formed organic electron transport layer film is more evenly covered on the perovskite layer, which is conducive to the transmission of electrons and can block holes at the same time, greatly improving the efficiency and photoelectric performance of the battery; and the operation is simple, the cost is low, and commercial production can be carried out.

This invention provides a halide solid electrolyte and its preparation method, belonging to the field of solid electrolyte technology. First, alkylphosphonic acid is reacted with lithium carboxylate to prepare lithium-ionized alkylphosphonic acid. Then, the lithium-ionized alkylphosphonic acid is mixed with a halide electrolyte, and the mixture is dispersed in a solvent, stirred, filtered, and dried to obtain a halide solid electrolyte coated with lithium-ionized alkylphosphonic acid. This invention constructs a dense, uniform hydrophobic protective layer on the surface of halide electrolyte particles through in-situ coating with long-chain lithium alkylphosphonate, effectively isolating moisture and oxygen from the environment and significantly improving the air stability of the halide electrolyte. Simultaneously, this coating layer helps reduce the interfacial impedance between the electrolyte and electrode materials, optimizing the overall ionic conductivity of the material.

The utility model relates to a warning board with high safety protection, which comprises a mounting seat, the upper surface of the mounting seat is fixedly connected with a machine cover, the inner wall of the machine cover is fixedly connected with a motor, the upper surface of the machine cover is fixedly connected with a protective frame, the inner wall of the protective frame is clamped with a warning board body, and the warning board body is fixedly connected with the machine cover. A protective film is fixedly connected to the outer surface of the warning board body, a lifting frame is fixedly connected to the upper surface of a protective frame, and a threaded rod is fixedly connected to the output end of a motor. According to the warning board with high safety protection, the surface of the warning board can be effectively prevented from being eroded by bad environmental factors such as ultraviolet rays, dust and rain and snow through a protective film and a protective cover, the service life of the warning board is prolonged, after use, a touch panel is operated, a motor is started to drive a threaded rod to rotate reversely, and a warning board body is matched with a limiting sliding groove and stored in a protective frame; the warning board can be prevented from being accidentally collided, damaged and the like, and the safety of the warning board in the storage and transportation process is ensured.

The present invention relates to a corrosion-resistant sedimentation centrifugal production device for lithium hexafluorophosphate, and belongs to the technical field of electrolyte production. The sedimentation centrifugal production device of the present invention comprises a production box, wherein a sedimentation section is arranged inside the production box, a bearing seat 1 is arranged on the left side of the production box, a differential is installed on the left side of the bearing seat 1, the output end of the differential passes through the left side of the production box and is installed with a drum, a spiral pusher is installed inside the drum, a centrifugal filter shell is installed on the right side of the drum, a feed pipe is connected to the right side of the centrifugal filter shell, and the right end of the feed pipe passes through the inner wall of the production box and is installed with a bearing seat 2. In the present invention, solid-liquid separation is achieved by a drum, a screw conveyor, a feed pipe, a differential and a centrifugal filter shell, and the whole device has the advantages of compact structure, simple operation and high separation efficiency, which can meet the needs of large-scale production and improve production efficiency and product quality.

The invention provides a self-repairing dental implant based on a magnesium alloy material and a preparation method of the self-repairing dental implant, and belongs to the technical field of alloy materials. The self-repairing dental implant is prepared from the following raw materials in percentage by mass: 0.5 to 3 percent of Zn, 0.01 to 0.1 percent of Ca, 0.01 to 0.1 percent of Mg30Nd and the balance of Mg and inevitable impurities, wherein the mass ratio of Zn to Ca to Mg30Nd is (30 to 50) to 1 to 1. The self-repairing dental implant prepared by the invention not only has excellent mechanical properties, but also has good corrosion resistance, and can provide longer service life and better oral cavity repairing effect.

The invention discloses a high-strength anti-steam oxidation coating material and a coating, a preparation method and application thereof, and belongs to the technical field of corrosion prevention of inner walls of through-flow components of thermal power generating units. The high-strength steam oxidation-resistant coating material disclosed by the invention is composed of the solid-phase component and the liquid-phase component, and all the components play a synergistic role, so that the steam oxidation resistance of a coating is improved, and meanwhile, the mechanical property of the coating is enhanced, so that the coating is prevented from cracking in the service process, and the service life of the coating is prolonged. The problem that an existing coating cracks in a high-temperature environment is solved.

The utility model relates to the technical field of LED street lamps, in particular to an LED street lamp with a heat dissipation structure convenient to install. The LED street lamp convenient to install the heat dissipation structure comprises a shell, installation frames, a light bar and the like, the installation frames are fixedly connected to the left side and the right side of the bottom of the shell, the light bar is installed on the upper portion of the right wall of the shell, a solar panel is installed on the top of the shell, a draught fan is installed on the upper portion in the shell, and the draught fan, the light bar and the solar panel are all electrically connected. Hot air is dissipated through the draught fan and the square holes, then residual heat is taken away through the natural cooling effect and the evaporation process of rainwater in the hollow plate, and therefore the temperature of the street lamp is effectively reduced, environment protection and energy conservation are achieved, manual liquid supplementing is not needed, and the street lamp has the advantages of being high in cost benefit, high in adaptability and the like. Opening and closing of the square hole are controlled through the baffle, so that rainwater is prevented from continuously entering the shell from the square hole in rainy seasons, rainwater erosion is effectively prevented, and a circuit is protected from being affected.

The invention relates to the technical field of anti-corrosion pigments, in particular to a long-acting anti-corrosion pigment and a preparation method thereof. The long-acting anti-corrosion pigment is prepared from the following raw materials in parts by weight: 40 to 60 parts of attapulgite, 10 to 30 parts of zinc phytate, 5 to 10 parts of zirconium oxide, 1 to 3 parts of silane coupling agent, 8 to 15 parts of lanthanum ricinoleate and 5 to 10 parts of modified Ti3C2Tx nanosheet. The long-acting anti-corrosion pigment disclosed by the invention is prepared from the following components: lanthanum ricinoleate, modified Ti < 3 > C < 2 > T < x > nanosheets and the like. The lanthanum ricinoleate and the modified Ti3C2Tx nanosheet can effectively improve the corrosion resistance of the pigment. The obtained pigment has excellent corrosion resistance, and experimental results show that the acid resistance of the obtained pigment is larger than 36 d, the alkali resistance of the obtained pigment is larger than 32 d, the salt water resistance of the obtained pigment is larger than 45 d, and the salt fog resistance of the obtained pigment is larger than 20 d.

The utility model discloses a novel anti-pulling anchor rod pile structure, which belongs to the technical field of pile foundations and is characterized in that a novel anti-pulling anchor rod pile is divided into an expanded anchoring section and a common anchoring section and penetrates through a central rod body of a pile body, and a sleeve is arranged outside the rod body. The expanded anchoring section is a connecting part of the rod body inserted into the reinforcing steel bar clamping groove disc and the umbrella-shaped reinforcing steel bar mesh A; the common anchoring section is a part where the rod body is inserted into the steel bar clamping groove disc and connected with the umbrella-shaped steel bar mesh B; the reinforcing steel bar clamping groove disc is fixed on the rod body through a nut; the steel plate A is fixed to the pile top through the high-strength nut, and the spring and the steel plate B are sleeved with the top of the rod body. And after the anchor rod pile is put down, the steel wires are adjusted, and the reinforcing mesh A and the reinforcing mesh B fill the expanded anchoring section and the common anchoring section in an umbrella shape. The anchor rod pile is simple in structure, and the pulling resistance of the anchor rod pile is improved by enlarging the pulling resistance of the anchoring section and the friction force between the common anchoring section and the soil body; the durability of the pile body is improved through the sleeve; applying prestress through the steel plate A; foundation steel bars are connected with springs, and the anchoring force of the pile and the foundation is improved.