93 results about "Acid rain" patented technology

The invention relates to a self-repairing anti-corrosion water-based paint applied to the field of paint compositions, which is prepared by the following steps: firstly, preparing a self-repairing microcapsule encapsulated with a self-repairing agent and a corrosion inhibitor, and then uniformly dispersing the self-repairing microcapsule into water-based base resin under a low-shear condition; the prepared coating can be applied to the surface of a pretreated metal base material in a brush coating, spray coating or blade coating mode and the like, a micron-sized anti-corrosion coating is formed after curing, under the normal condition, the microcapsules are placed in the coating in a standing mode and do not work, when scratches occur, the self-repairing microcapsules are broken and play a role, and the corrosion resistance of the coating is improved. The self-repairing agent rapidly fills and heals the damaged part of the coating to form a new barrier layer, the corrosion inhibitor forms a protective film on the exposed metal surface to inhibit the corrosion reaction, and the synergistic mechanism can effectively delay the corrosion diffusion of the scratched part, so that the protection integrity of the coating on the base material is maintained, and the service life of the coating is prolonged. And the coating can be suitable for metal structure protection in severe environments such as ocean climate, high-humidity and high-salt environments, acid rain regions, chemical environments and the like.

The invention relates to the technical field of visualization of an air pollution information distribution state, in particular to a visualization method based on the air pollution information distribution state. The method comprises the following steps: acquiring atmospheric pollution information through a remote sensing technology to obtain atmospheric pollution data, and constructing an atmospheric pollution geographic position topological graph in combination with atmospheric pollution geographic feature analysis; through diffusion analysis and distribution state analysis, a pollutant hot spot area is further identified, the acid rain forming probability and air quality attenuation data are calculated, and therefore the pollution degree of a high-concentration area is evaluated; atmospheric pollution risk assessment is carried out through analysis of atmospheric pollution information abnormal data, and an assessment result is uploaded to a cloud platform for real-time early warning; according to the method, the air pollution distribution is identified and optimized, so that the air pollution information is identified more accurately.

The invention relates to a composite cable, and relates to the technical field of cables, the composite cable comprises a conductor layer, a composite insulating layer, a waterproof layer, a weather-proof sheath layer and an armor layer from inside to outside in sequence, the conductor layer comprises at least six tinned copper conductors, the tinned copper conductors are symmetrically arranged in a regular hexagon shape, dielectric elastomers are filled among the conductors, and the dielectric elastomers are arranged between the tinned copper conductors. The composite insulating layer comprises an inner shielding layer, a main insulating layer and an outer shielding layer from inside to outside, the waterproof layer is a fluororubber extruded layer, the weather-proof sheath layer comprises a bonding transition layer and a weather-proof functional layer, and the armor layer is of a stainless steel band spiral wrapping structure. The composite cable can meet the requirement for high performance in a harsh environment and can show excellent performance under the extreme conditions of low voltage, large day and night temperature difference, strong ultraviolet rays, sand and dust abrasion, acid rain corrosion and the like.

The invention discloses a colored photovoltaic module which comprises a transparent colored glaze panel, a transparent bonding layer A, a battery layer, a bonding layer B and a back plate which are sequentially packaged in a stacked mode. The transparent colored glaze panel comprises a glass substrate, a transparent colored coating covering the outer side surface of the glass substrate, and a transparent glaze layer covering the outer side surface of the transparent colored coating; the transparent glaze layer is combined with the transparent colored coating through a covalent bond; the main component of the transparent glaze layer is silicon dioxide. The transparent colored coating of the colored photovoltaic module is positioned on the outer surface of the glass panel of the photovoltaic module, so that the defect of glass texture of a traditional photovoltaic module serving as a building material product is overcome; a transparent glaze layer with silicon dioxide as a main component is further arranged outside the transparent colored coating to serve as a protective layer, the adhesion fastness is high, the excellent performance of high hardness, high transparency, super weather resistance, acid and alkali resistance, scratch resistance and stain resistance is achieved, and the colored coating is effectively protected against color fading, falling off and external erosion such as acid rain, ultraviolet and sand wind.

The photovoltaic car shed comprises symmetrically arranged main supports, transverse supports are fixedly connected to the tops of the two main supports, a plurality of purlin supports are fixedly connected to the sides, away from the main supports, of the two transverse supports, and a photovoltaic panel is jointly and fixedly connected between the purlin supports; the photovoltaic panel is provided with a cleaning protection assembly, the two main supports are jointly provided with a driving assembly, the driving assembly is arranged to drive the cleaning protection assembly to spray water to the photovoltaic panel, clean the photovoltaic panel in a rolling mode and scrape sewage generated during cleaning, shelters such as dust, dirt and bird droppings on the surface of the photovoltaic panel can be removed, the light transmittance of the photovoltaic panel is improved, and the service life of the photovoltaic panel is prolonged. The protective cloth is used for covering the surface of the photovoltaic panel, the protective cloth can effectively shield the photovoltaic panel and prevent the photovoltaic panel from being impacted and scratched by leaves, branches, dust and sundries under severe weather conditions such as strong wind, rainstorm and the like, so that the integrity and functionality of the surface of the photovoltaic panel are protected, meanwhile, the protective cloth can block direct scouring of acid rain, and the photovoltaic panel is protected from being damaged. And the erosion effect of acid rain on the surface of the photovoltaic panel is reduced.

The invention discloses a corrosion resistance detection device and detection method for corroded foil processing, and relates to the technical field of material corrosion detection.The corrosion resistance detection device comprises a detection box, an exhaust mechanism is arranged at the upper end of the detection box, an ultraviolet lamp is arranged at the top of the inner wall of the detection box, and a traction mechanism is arranged on one side of the detection box. The atomized corrosive liquid is closer to corrosive media such as acid rain and salt mist in natural atmosphere, a complex corrosive environment can be simulated more truly, the superimposed effect of multiple corrosion mechanisms such as photo-oxidation corrosion and damp and hot corrosion can be researched through the synergistic effect of illumination, humidity and the corrosive liquid, the atomized corrosive liquid is close to a complex scene in practical application, and the application prospect is wide. By comparing the corrosion rate under the illumination condition or not, the promotion effect of ultraviolet rays on material corrosion, such as photocatalytic oxidation, corrosion foil on a corrosion swing frame mechanism and corrosion foil on a corrosion diffusion mechanism, can be determined, and the influence of different humidity levels on corrosion types, such as pitting corrosion and crevice corrosion, can be analyzed.

The invention discloses thermal stress crack self-repairing high-strength concrete and a preparation method thereof. The high-strength concrete is prepared from the following raw materials: water, cement, mineral powder, fly ash, silica fume, sand, gravel, a polycarboxylic acid high-performance water reducing agent and a polyacrylic acid macromolecular modifier. The molecular structure of the polycarboxylic acid high-performance water reducing agent is short in main chain polymerization degree and long in side chain polymerization degree, and contains a large number of sulfonic acid active groups; the molecular structure of the polyacrylic acid high-molecular modifier is a highly branched three-dimensional network structure, and the polyacrylic acid high-molecular modifier contains a large number of carboxylic acid groups. Through mutual cooperation of the polyacrylic acid high-molecular modifier and the polycarboxylic acid high-performance water reducing agent which are of a three-dimensional network structure, the active mineral admixture can migrate to a certain extent along with free water, meanwhile, segregation and bleeding are avoided, the concrete micro-crack repairing rate can reach 95% or above, automatic repairing of concrete early-stage cracks is achieved, and the service life of the concrete early-stage cracks is prolonged. The later cracks are not further developed, and the durability and the bearing capacity of the concrete in an acid rain environment are improved.

The invention relates to the technical field of coatings, in particular to a stone-like fluorocarbon coating and a preparation method thereof. The stone-like fluorocarbon coating is prepared from the following components in parts by mass: 35 to 50 parts of fluorocarbon resin, 10 to 20 parts of nepheline powder, 5 to 15 parts of potassium aluminum silicate, 3 to 8 parts of rutile titanium dioxide, 1 to 5 parts of inorganic color paste, 0.5 to 2 parts of silane coupling agent, 0.3 to 1.5 parts of polyamide wax anti-settling agent, 0.5 to 2 parts of fumed silica, 0.1 to 0.8 part of organic silicon flatting agent and 0.2 to 1 part of modified hydrogenated castor oil. 5-12 parts of an aliphatic isocyanate curing agent and 10-20 parts of a mixed solvent. The stone-like fluorocarbon coating is excellent in weather resistance, can effectively resist the influence of environmental factors such as ultraviolet rays, acid rain and temperature change, remarkably reduces the probability of occurrence of phenomena such as color fading, pulverization and peeling, prolongs the service life of the coating, and ensures a long-term stable decorative effect.

The invention discloses a weather-resistant heat-insulation waterproof coating for an outer wall and a preparation method of the weather-resistant heat-insulation waterproof coating. The waterproof coating comprises the following components in parts by weight: 27-35 parts of modified acrylate polymer emulsion, 35-50 parts of composite filler, 5-10 parts of a curing system, 4-8 parts of a coalescing agent, 0.1-0.5 part of a defoaming agent, 0.3-0.8 part of a flatting agent, 0.2-0.6 part of a mildew preventive, 0.5-1.0 part of a thickening agent and 1-5 parts of a pH regulator, the modified acrylate polymer emulsion is prepared by carrying out pretreatment and silanization modification on cardanol and then carrying out monomer pre-emulsification and free radical polymerization. According to the waterproof coating provided by the invention, a Si-O-C network and a hindered amine free radical capture system are introduced, so that the weather resistance is improved; fluoride-nano silicon dioxide is used for constructing a roughness-low surface energy synergistic waterproof interface; acid-washed fly ash floating beads, silicon dioxide aerogel and expanded perlite filler are compounded to form multiple heat conduction scattering paths so as to realize cross-scale porous filler heat preservation; the waterproof coating can serve in complex environments with large temperature difference fluctuation, acid rain and the like.

The invention discloses an experiment device and method for dangerous rock mass collapse induced by earthquake-excavation-acid rain coupling, and belongs to the technical field of geotechnical engineering simulation experiments, and the device comprises a counter-force supporting assembly, an earthquake dynamic disturbance simulation application assembly, an engineering excavation disturbance simulation application assembly and an acid rain corrosion and rainfall simulation assembly; the earthquake dynamic disturbance simulation applying assembly, the engineering excavation disturbance simulation applying assembly and the acid rain corrosion and rainfall simulation assembly are all arranged on the counter-force supporting assembly, and the slope dangerous rock mass model is located in the counter-force supporting assembly. The experimental device can simulate influence factors such as earthquakes, engineering excavation, acid rain corrosion, rainfall and river scouring, the influence factors can be combined at will to simulate the inoculation and induction process of dangerous rock mass collapse disasters under the coupling condition of the various influence factors, and an experimental conclusion is obtained on the basis. The method can reflect the inoculation and induction mechanism of the dangerous rock mass collapse disaster more truly, and provides technical support for the prediction and forecast of the dangerous rock mass collapse disaster.

The invention belongs to the technical field of intelligent sensing monitoring and micro-nano energy, and discloses an intelligent acid rain sensing monitoring method and system based on a total-current nano generator. The method comprises the following steps: preparing a total-current nano-generator as a sensing core element, and generating a characteristic electric signal corresponding to a pH value through the action with acid rain; constructing an intelligent algorithm processing module based on a ResNet 18-1D convolutional neural network (CNN), and performing multi-dimensional feature extraction and pH value intelligent classification on the collected electric signals; and displaying the electric signal waveform characteristics and the pH recognition result in real time through a visual interaction interface. According to the invention, the full-current nano generator is combined with the deep learning technology, the technical bottlenecks that a traditional acid rain detection method depends on a large professional instrument, needs external power supply support and is complex in operation process are broken through, and in-situ, rapid and intelligent monitoring of the acid rain pH value is realized. And an efficient and reliable solution is provided for real-time monitoring of acid rain in industrial areas and outdoor environments.

The invention relates to the field of ring main units, and discloses an intelligent fusion complete ring main unit protection structure suitable for a severe environment, the intelligent fusion complete ring main unit protection structure comprises a shell, the upper end and the interior of the shell are fixedly provided with protection assemblies, the protection assemblies can blow away residual water on the surface of a cabinet body after raining, and the two sides of the shell are provided with temperature control assemblies. The intelligent fusion complete ring main unit protection structure suitable for the severe environment comprises a protection assembly, a temperature control assembly and an auxiliary assembly, the protection assembly is used for protecting the interior of a cabinet, the temperature control assembly is used for adjusting the temperature in the cabinet, and the auxiliary assembly is arranged on the rear portion of the interior of the shell. The protection device can be normally used under the severe conditions of acid rain, industrial dust and large day and night temperature difference, can perform targeted or comprehensive protection on a single environment or multiple environments, and can reduce or not influence the normal use of electric devices on the premise of ensuring the protection effect, and also can not excessively increase the cost and control the required energy.

The utility model relates to a current transformer, and belongs to the field of current transformers. Comprising an explosion-proof expander, an oil tank, a hollow insulator, a base, a secondary lead tube and a secondary outlet box, the explosion-proof expanders and the hollow insulators are installed at the top end and the bottom end of the oil tank in a one-to-one correspondence mode, the hollow insulators are installed at the top end of the base, the secondary outlet box is installed on the base, and the secondary lead pipe penetrates through the hollow insulators and is connected with the secondary outlet box. The hollow insulator is composed of an epoxy glass fiber tube, a porcelain umbrella skirt sleeve and two insulator flanges, the porcelain umbrella skirt sleeve is sleeved on the epoxy glass fiber tube, the two insulator flanges are arranged at the top ends and the bottom ends of the epoxy glass fiber tube and the porcelain umbrella skirt sleeve in a sealing mode in a one-to-one correspondence mode, and the secondary lead tube is arranged in the epoxy glass fiber tube. According to the utility model, the impact resistance, explosion resistance, pollution flashover resistance, ultraviolet resistance, wind and sand resistance, acid rain resistance and aging resistance of the current transformer can be improved.

The application discloses a waterproof coating for outer wall weather resistance, heat insulation and heat preservation and a preparation method thereof. The waterproof coating comprises the following components in parts by weight: modified acrylate polymer emulsion 27-35 parts, composite filler 35-50 parts, curing system 5-10 parts, film forming aid 4-8 parts, defoaming agent 0.1-0.5 parts, leveling agent 0.3-0.8 parts, mildew-proof agent 0.2-0.6 parts, thickening agent 0.5-1.0 parts and pH regulator 1-5 parts. The modified acrylate polymer emulsion is prepared by pretreating and silanization modifying cardanol, monomer pre-emulsification and free radical polymerization. The waterproof coating provided by the application introduces Si-O-C network and hindered amine free radical capture system to improve weather resistance; fluorine compound-nano silicon dioxide constructs roughness-low surface energy synergistic waterproof interface; acid washing fly ash floating beads, silica aerogel and expanded perlite filler are compounded to form multiple heat conduction scattering paths to realize cross-scale porous filler heat preservation; and the waterproof coating can serve in complex environments such as large temperature difference fluctuation and acid rain.

The invention belongs to the technical field of chemical engineering, and relates to a composition for a detonation sound agent, the detonation sound agent and a preparation method and application of the detonation sound agent. The technical problems that in the prior art, pyrotechnic composition and aluminum magnesium alloy powder serve as raw materials, potential safety hazards exist in the preparation and storage process, sulfur dioxide generated after combustion easily forms acid rain, and the detonation sound value does not reach the standard are solved. The invention provides a composition for a detonation sound agent, which comprises the following raw materials: 75-85 wt% of lead tetraoxide, 10-15 wt% of aluminum-silicon alloy powder and 5-10 wt% of nitrocellulose gum solution, and has the effects of high detonation sound value, high stability and safety, and suitability for large-scale industrial production and use. The invention further provides a detonation sound agent and a preparation method of the detonation sound agent. Meanwhile, the invention further provides application of the detonation sound agent in preparation of the bird repelling bomb, when the explosive quantity is 300 mg, the set-off sound level value at the position 2 m away from the acting position can reach 120 dB or above, and the good high-altitude bird repelling effect is achieved.

A slurry reactor liquefied gas desulfurization device and a desulfurization method thereof relate to the technical field of liquefied gas treatment, and comprise a fixed bed reactor, a mercaptan removal tank, a water washing tank, an alkali liquor oxidation tower and an alkali liquor tank, a top inlet of the fixed bed reactor is communicated with liquefied gas obtained by desulfurization of a lean amine solution through a pipeline, a bottom outlet of the fixed bed reactor is communicated with a top inlet of the mercaptan removal tank through a pipeline, and a top outlet of the mercaptan removal tank is communicated with a top inlet of the washing tank through a pipeline; an outlet in the top of the washing tank is communicated with a refined liquefied gas pipe network through a pipeline; a bottom outlet of the mercaptan removal tank is communicated with a bottom inlet of the alkali liquor oxidation tower through a pipeline, a bottom outlet of the alkali liquor oxidation tower is communicated with a top inlet of the mercaptan removal tank through a pipeline, and one side of the lower end of the alkali liquor oxidation tower is connected with an air inlet pipeline; according to the method, mercaptan in liquefied gas can be removed, sulfur dioxide is prevented from being generated after combustion, acid rain and air pollution are reduced, meanwhile, consumption of alkali liquor can be reduced, and the discharge amount of waste alkali liquor is reduced.

The invention belongs to the technical field of pollution treatment, and particularly discloses a method for evaluating the long-term stability of repaired heavy metal polluted soil. The method comprises the following steps: crushing and sieving the treated heavy metal polluted soil to obtain a sample, and then mixing the sample with different acid rain accelerating solutions; continuously oscillating the mixture for a preset time length to obtain a mixed solution of a single acceleration test; circularly executing an acceleration test on the mixed solution, and determining the concentration Ci and the chemical form distribution characteristics of the heavy metal element after each time of completion; based on the environmental background values Bi and Ci, calculating a heavy metal polluted soil stability index Ei = Ci / Bi, and constructing a long-term stability index model EN; setting a long-term stability grading standard, and evaluating the long-term stability grade of the repaired heavy metal polluted soil according to the Ei and the EN by comparing the standard. According to the method, the durability of the remediation effect can be accurately quantified, and the problem of risk quantification of reactivation of the heavy metal contaminated soil is effectively solved.

The utility model belongs to the technical field of photovoltaic power generation, and relates to a flexible photovoltaic support. A flexible photovoltaic support based on a composite material comprises a support base structure and a flexible inhaul cable structure. The two ends of the flexible inhaul cable structure are fixed to the support base structure. The flexible inhaul cable structure is composed of a flexible inhaul cable and a flexible conversion connecting piece, the flexible inhaul cable comprises three sections, the middle section is a carrier cable, the two end sections are anchoring inhaul cables, and the carrier cable and the anchoring inhaul cables are connected through the flexible conversion connecting piece. By utilizing the characteristics of corrosion resistance, insulativity, light weight, high strength and the like of FRP and other materials, the service life of the bracket is prolonged, and the bracket has extremely strong adaptability to complex environments, such as non-flat fields, slopes, mud flats, high-pressure environments, saline-alkali soil, acid rain corrosion areas and the like.

The invention relates to the technical field of building composite materials, in particular to a weather-resistant reinforced plastic steel tile and a preparation method thereof. The weather-resistant reinforced plastic steel tile provided by the invention is prepared from the following raw material components: a polyvinyl chloride resin matrix, a glass fiber reinforced material, filler, nano silicon dioxide, adsorption type calcium carbonate, a titanium-carbon hybrid weather-resistant agent and a synergist. Acid etching ions are selectively captured through a zeolite molecular sieve of adsorption type calcium carbonate to improve the acid resistance of the plastic steel tile, an ultraviolet shielding net is constructed in cooperation with a titanium-carbon hybrid weather-resistant agent, meanwhile, chlorine free radicals and active oxygen can be captured through a synergist, and embrittlement caused by oxidation and ash formation of carbon black is prevented. And the service life of the plastic steel tile is prolonged under the conditions of acid rain, ultraviolet and cold and hot cycles.

The invention provides a radiator mask corrosion resistance detection device and detection method, and belongs to the technical field of automobile part detection, the radiator mask corrosion resistance detection device comprises a detection box and a detection groove formed in the top of the detection box, the bottom of the detection groove is provided with a placing frame used for placing a mask body, one side of the detection box is provided with a solvent box, and a solvent spraying assembly is arranged in the detection groove; the solvent spraying assembly comprises three groups of rotating pipes and three groups of rotating heads, one side of the solvent box is respectively connected with the three groups of rotating pipes through spraying pipelines, the bottom ends of the three groups of rotating pipes are rotatably connected with the rotating heads, and a sunlight irradiation assembly is arranged at the top of the detection box and comprises three groups of sunlight simulators. According to the device, acid rain, solarization, high-temperature and high-humidity corrosion environments can be simulated in the detection box, the problem that a traditional corrosion resistance detection device can only perform single detection is solved, the detection box is further provided with a detection assembly, the detection assembly comprises an X-ray detection module and four groups of ultrasonic generators, and internal and surface corrosion damage detection can be performed on a mask body.

The present invention discloses a meter-in wiring device for an electric power meter box, and relates to the technical field of electric power equipment. The present invention includes a device body, wherein square grooves are provided on the left and right sides of the device body, and a wire inlet hole is provided at the bottom of the device body, a safety door is provided on the front of the device body, a meter is provided inside the device body, a power component is provided at the bottom of the meter, and a mounting component is provided at the bottom of the power component; an anti-falling device is provided inside the device body, an anti-penetration device is provided on the periphery of the anti-falling device, and an anti-drip device is provided above the anti-penetration device. The present invention relies on a sealing plate to change the sealing environment inside the device body, so as to facilitate the dehumidification component to quickly discharge the moisture inside the device body, and prevent the device body from being eroded by acid rain when it is backed against the wall, resulting in excessive moisture inside itself, thereby corroding the surface of the wire and the exposed part of the wire, and increasing the risk of short circuit between the line and the meter.

The invention discloses a high-strength corrosion-resistant overhead insulated wire and a manufacturing process and application thereof, and belongs to the technical field of power transmission. The wire adopts a multi-layer structure design of a high-strength aluminum alloy conductor core (containing 0.3%-0.8% of copper, 0.5%-1.2% of magnesium and 0.2%-0.6% of silicon), a cross-linked polyethylene inner insulating layer, an aramid fiber and stainless steel wire net composite reinforcing layer (the layer number ratio is 2: 1), and a corrosion-resistant outer insulating layer (a surface microscopic concave-convex structure) added with nano zinc oxide / titanium dioxide filler (3%-5%); the problems that a traditional wire is insufficient in strength and prone to corrosion and aging are solved in cooperation with electromagnetic stirring smelting, precise temperature control extrusion and other processes. Experiments show that the tensile strength of the lead reaches 350-420 MPa, the direct-current resistivity is low, the insulation resistance retention rate in the salt mist / acid rain / ultraviolet environment exceeds 92%, the lead is suitable for high-voltage power transmission and medium-voltage power distribution systems, the service life can be remarkably prolonged, and the maintenance cost can be reduced.

The present invention discloses a corrosion resistance detection device and detection method for corrosion foil processing, which relates to the field of material corrosion detection technology, including a detection box, an exhaust mechanism is provided at the upper end of the detection box, an ultraviolet lamp is provided at the top of the inner wall of the detection box, and a traction mechanism is provided on one side of the detection box. The atomized corrosion liquid in the present invention is closer to the corrosive media in the natural atmosphere, such as acid rain and salt spray, and can more realistically simulate complex corrosion environments. The synergistic effect of light, humidity, and corrosion liquid can be used to study the superposition effect of various corrosion mechanisms, such as photo-oxidation corrosion and wet heat corrosion, which is close to the complex scenes in actual applications. By comparing the corrosion rate under conditions with and without light, the promoting effect of ultraviolet rays on material corrosion, such as photocatalytic oxidation, can be clarified. By comparing the corrosion foil on the corrosion swing mechanism and the corrosion diffusion mechanism, the influence of different humidity levels on corrosion types, such as pitting corrosion and crevice corrosion, can be analyzed.

The utility model discloses a soil experiment testing device, which comprises a support frame, the sealing assembly is assembled on the top of the supporting frame and used for providing sealing; the acid rain steam treatment assembly is assembled in the sealing assembly; according to the device, acid rain to be treated is put into the acid rain containing box in the sealing box, and the sealing box is fixed to the top of the supporting frame. The first box door and the second box door can be movably opened, so that operation and maintenance are facilitated. The perspective box door allows observation of internal conditions. The acid rain steam treatment assembly is installed in the sealing box and comprises an installation plate, a protective cover and a heating lamp are fixed to the bottom of the installation plate, and the heating lamp is located in the protective cover and used for heating acid rain. The fan is mounted at the bottom of the mounting plate and used for promoting air flow. The guide slope is fixed to the top of the inner surface of the sealing box and guides acid rain to flow to the acid rain containing box. Through the design, the acid rain steam treatment assembly can effectively treat acid rain, and meanwhile the safety of operators is protected.

The invention provides a cement waste incineration fly ash cementing solid waste negative carbon baking-free building block, and relates to the technical field of baking-free building blocks. The cement waste incineration fly ash cementing solid waste negative carbon baking-free building block is prepared from the following components in parts by weight: 30 to 40 parts of building solid waste, 30 to 35 parts of waste incineration fly ash, 35 to 40 parts of cement, 10 to 13 parts of compacting agent, 20 to 25 parts of fluorocarbon resin, 5 to 7 parts of steel fiber and 40 to 50 parts of water, the compacting agent is any one of an organic silicon compacting agent and a crystal permeable compacting agent. The surface of the baking-free building block is coated with fluorocarbon resin, the fluorocarbon resin reacts with moisture and oxygen in the air to form a protective film, a layer of uniform and compact protective film can be formed on the surface of the baking-free building block, so that permeation of moisture and other liquid is prevented, in addition, the fluorocarbon resin has extremely high resistance to corrosive substances such as acid, alkali and salt, and the baking-free building block has the advantages that the baking-free building block is not prone to cracking. Acid rain can be effectively handled, and the water resistance of the baking-free building block is improved.

The invention relates to the technical field of sewage treatment equipment, and discloses a sewage treatment device for sewage purification treatment, which comprises a bottom box, a treatment box is arranged in the middle of the top end of the bottom box, and the bottom of the treatment box is communicated with the interior of the bottom box; the dynamic filtering mechanism is arranged in the treatment box and is used for dynamically separating and filtering the acid rain sewage discharged into the treatment box and soil and impurities contained in the acid rain sewage. By adding and arranging the dynamic filtering mechanism, when rain sewage is treated, on one hand, the mechanism can dynamically separate impurities in the rain sewage in a manner of matching rotation and vibration, so that the separation efficiency of various impurities and the rain sewage is remarkably improved, and on the other hand, in the process of continuously rotating, filtering and separating, the impurities in the rain sewage can be effectively separated. Sewage entering the stainless steel ring filter screen is used for backwashing impurities intercepted or adhered on the filter screen, so that the pores of the filter screen are prevented from being blocked, and the stable filtering flux is ensured.

The application discloses a production process of a road guardrail corrugated beam, which comprises the steps of laser cutting, high-temperature forming and quenching, cutting and trimming, surface treatment and laser punching, etc.; the application cancels the galvanizing process, can reduce the zinc consumption of each ton of product, avoids the discharge of galvanizing wastewater (containing heavy metals such as zinc and chromium), adopts dry operation in the ultrasonic shot blasting process, has no dust pollution, and reduces dust emission compared with the traditional sand blasting process. The thin design makes the weight of the corrugated beam per unit length lower, and the production and transportation costs are also significantly reduced, and the application is especially suitable for installation operation in mountainous areas; the anti-corrosion feature makes the corrugated beam directly used in harsh environments such as coastal salt mist areas and industrial acid rain areas, can replace the traditional stainless steel galvanized guardrail, and the application range is expanded to high-corrosion scenes which cannot be covered by the traditional process.

The invention relates to the technical field of tail gas heat energy utilization, and discloses a crude yellow phosphorus tail gas combustion hot air system with deacidification and phosphorus fixation functions, which comprises a tail gas combustor and a vertical hot air furnace, one side of the bottom of the tail gas burner is connected with a deacidification and phosphorus fixation powder inlet, two sides of the tail gas burner are respectively connected with a yellow phosphorus tail gas inlet and a combustion-supporting air inlet, and a deacidification and phosphorus fixation device is fixed at the top of the tail gas burner; a distribution box is fixed to the top of the deacidification and phosphorus fixation device, three circles of annularly-distributed spray heads are connected to the outer side of the distribution box, a mixture of lime powder and pulverized coal is sprayed to chemically react with acid gas in flue gas generated by combustion, acid substances in the flue gas are effectively removed, pollution to the atmosphere is reduced, and the occurrence risk of environmental problems such as acid rain is reduced; particulate matters such as dust in the flue gas are separated by utilizing centrifugal force generated by the cyclone dust removal air duct, and the flue gas is further purified, so that the discharged clean hot air reaches the environmental protection standard, and the ecological environment is protected.

Red rust staining of Al / Zn coated steel strip in “acid rain” or “polluted” environments can be minimised by forming the coating as an Al—Zn—Si—Mg alloy coating with an OT:SDAS ratio greater than a value of 0.5:1, where OT is the overlay thickness on a surface of the strip and SDAS is the measure of the secondary dendrite arm spacing for the Al-rich alpha phase dendrites in the coating. Red rust staining in “acid rain” or “polluted” environments and corrosion at cut edges in marine environments can be minimised in Al—Zn—Si—Mg alloy coatings on steel strip by selection of the composition (principally Mg and Si) and solidification control (principally by cooling rate) and forming Mg2Si phase particles of a particular morphology in interdendritic channels.

This invention provides a clear topcoat for transportation vehicle components, comprising the following components: silicone-modified fluorocarbon resin, HDI-blocked isocyanate, IPDI-blocked isocyanate, hexamethoxymethylmelamine-formaldehyde resin, light stabilizer, adhesion promoter, silicone-modified polyacrylate solution, and organic solvent. The HDI-blocked isocyanate crosslinking product exhibits excellent weather resistance, moderate hardness, and flexibility; the IPDI-blocked isocyanate crosslinking product possesses excellent resistance to acid rain and weathering, but the coating is slightly brittle and hard; the hexamethoxymethylmelamine-formaldehyde resin crosslinking product has good toughness and excellent adhesion to the base coat, but slightly poor acid rain resistance; the combined crosslinking product of these three components exhibits good weather resistance, acid resistance, stain resistance, and interlayer compatibility. This invention also provides a method for preparing and applying this clear topcoat for transportation vehicle components.