1129results about How to "Reduce corrosion" patented technology

The invention relates to the technical field of finned heat exchangers, and discloses an adjustable finned heat exchanger which comprises a shell, air passing openings are formed in the two sides of the shell, a plurality of heat exchange modules used for heat transfer are arranged in the shell, the heat exchange module located in the middle is fixed to the shell, and the air passing openings are formed in the air passing openings. The other heat exchange modules are slidably connected with the shell through guide mechanisms, the distance between the heat exchange modules can be adjusted through adjusting mechanisms, the heat exchange modules are communicated through second corrugated pipes, and fans are fixed to the inner sides of the two ends of the shell through bolts. According to the heat exchanger, through the movable heat exchange module, auxiliary shaking can be conducted on water drops, the water drops fall off from the heat exchange module, the retention time of the water drops on the heat exchange module is shortened, corrosion of the water drops to the heat exchange module is reduced, and the service life of the heat exchanger is prolonged.

The invention discloses a steel structure support for photovoltaic power generation, relates to the field of photovoltaic power generation supports, and solves the problem that the surface of a photovoltaic panel is easy to damage and the service life is affected due to the fact that an existing steel structure support for photovoltaic power generation is difficult to turn over and fold at multiple angles during use. Comprising a base, a supporting mechanism, an adjusting mechanism, a cleaning mechanism and two sets of photovoltaic panels, the base is rotationally connected with a first electric telescopic rod, the supporting mechanism comprises a guide frame, a connecting plate and a guide piece, the adjusting mechanism comprises a mounting ring and a second electric telescopic rod, and the cleaning mechanism comprises a cleaning roller. A first electric telescopic rod can conveniently drive a connecting plate to ascend and descend, so that the photovoltaic panel is rotated, overturned and contracted, the angle of a guide frame is adjusted through a second electric telescopic rod, the light receiving efficiency is improved, meanwhile, a cleaning roller is linked to clean the surface of the photovoltaic panel, and the cleaning roller is self-cleaned through the connecting plate; and the service life of the photovoltaic panel is prolonged.

The invention relates to the technical field of power distribution cabinets, and discloses a power distribution cabinet with a self-adaptive environment adjusting mechanism, and the power distribution cabinet comprises a cabinet body which is used for fixing and supporting internal electrical elements; the automatic dehumidification assembly is mounted on the outer side of the cabinet body and is used for dehumidifying the cabinet body when detecting that the moisture content in the cabinet body is too high; the cleaning assembly is installed on one side of the cabinet body and used for conducting anti-blocking treatment on a filter screen arranged outside the cabinet body, and the driving assembly is installed outside the cleaning assembly and used for driving the cleaning assembly. By adding the automatic dehumidification assembly, the humidity in the power distribution cabinet can be effectively reduced, and the risk of electrical short circuit caused by a humid environment is reduced. By discharging moisture, safe operation of electrical equipment is guaranteed, and fire and electric shock accidents caused by moisture are avoided. And meanwhile, corrosion and aging processes can be slowed down, the service lives of the power distribution cabinet and internal components are remarkably prolonged, and the maintenance and replacement cost is reduced.

The invention discloses a synthetic method of a water soluble ultraviolet light absorber BP-9. The method mainly comprises the following process steps: (1) carrying out methylation on the main raw materials of 2, 2', 4, 4'-tetrahydroxyl benzophenone, a transition metal salt catalyst and a mixed solvent which is prepared from dichloroethane and anhydrous ethanol in equal parts by weight to obtain 2, 2'-dihydroxyl-4, 4'-dimethoxyl benzophenone; (2) carrying out sulfonation reaction on the main raw materials of methylate, sulfamic acid and C1-C3 halohydrocarbon to obtain 2, 2'-dihydroxyl-4, 4'-dimethoxyl benzophenone-5, 5'-disulfonic acid; and (3) carrying out neutral reaction on the main raw materials of sulfonated product, inorganic base and ethanol water to finally obtain the BP-9 product. The synthetic method disclosed by the invention is few in reaction step, low in cost, high in product purity and stable in quality, and raw materials are easily available.

The invention discloses a method for semi-continuously preparing electronic-grade hydrogen chloride in the field of electronic gas preparation, which comprises the following steps: (1) introducing industrial hydrogen chloride into an adsorption system after the moisture content of the industrial hydrogen chloride is lower than 50ppm by using a cryogenic system; (2) deeply removing trace moisture in the hydrogen chloride by using an adsorption system, and introducing the hydrogen chloride into a filtering system after the moisture content in the hydrogen chloride is lower than 1ppm; (3) removing the pulverized adsorbent entrained in the anhydrous hydrogen chloride gas by using a filtering system, and then introducing the anhydrous hydrogen chloride gas into a feeding tank of a rectifying tower; (4) introducing anhydrous hydrogen chloride in the feeding tank of the rectifying tower into a heavy component removal tower, removing high-boiling-point impurities from a tower kettle, and introducing a tower top material into a light component removal tower; and (5) continuously emptying the top of the light component removal tower to remove light boiling point impurities, and opening an extraction valve and filling when the purity of the tower kettle material hydrogen chloride is more than 99.9995%. According to the method, equipment corrosion is reduced, the influence of light-component impurities on the product is avoided, the product quality is stable, and the yield and the market competitiveness are improved.

The invention discloses a system for relieving corrosion of ground facilities of a compressed air energy storage power station, and relates to the technical field of heat storage and exchange systems of compressed air energy storage power stations. The system comprises a compressed air system, an expansion power generation system, a heat storage and exchange system and a gas storage system, and further comprises a staged cooling / preheating system, and the staged cooling / preheating system comprises a tail-section compressor outlet heat exchanger, a first-stage expansion inlet heat exchanger, a gas storage inlet and outlet heat exchanger and a gas storage inlet and outlet separator. The corrosion problem of the compressed air pipeline and the heat exchanger equipment can be effectively relieved, so that the manufacturing cost of the compressed air main pipe and the heat exchanger equipment is reduced, and the economical efficiency of a power station is improved. The invention further relates to an operation method of the system for relieving corrosion of the ground facilities of the pressure storage power station.

The invention relates to the technical field of sulfur-iodine circulating hydrogen production, in particular to a thermochemical iodine-sulfur-barium circulating hydrogen production process and a thermochemical iodine-sulfur-barium circulating hydrogen production system, which comprises the following steps: reacting excessive Ba < 2 + > with sulfuric acid in a Bunsen reaction product to obtain barium sulfate so as to obtain a first reaction mixed solution containing HI, BaSO4, H2O, BaI2 and a small amount of unreacted I2; sequentially carrying out cyclone separation, liquid removal and filter pressing to obtain a barium sulfate filter cake and a second mixed solution containing HI, H2O and BaI2; the method comprises the following steps: crushing a barium sulfate filter cake, performing high-temperature decomposition, returning gas generated by decomposition to participate in Bunsen reaction, and dissolving BaO generated by decomposition into Ba < 2 + >; and reboiling the second mixed solution to obtain hydrogen iodide steam, cooling a product obtained by decomposing the hydrogen iodide steam, carrying out gas-liquid separation to obtain hydrogen, and returning liquid obtained by gas-liquid separation to participate in the Bunsen reaction of the next cycle. Barium circulation is introduced, the process is simplified, the dosage of elemental iodine is reduced, and the cost is low.

The invention relates to a high-load composite iodine positive electrode based on an MXene electrochemical reaction regulator as well as a preparation method and application of the high-load composite iodine positive electrode. The high-loading-capacity composite iodine positive electrode comprises a porous self-supporting composite electrode film and an iodine active substance, wherein the porous self-supporting composite electrode film is formed by wrapping a carbon material with an MXene / cellulose network formed by mixing an MXene nanosheet, the carbon material and cellulose, and the iodine active substance is loaded on the porous self-supporting composite electrode film; wherein the iodine active substance comprises I <-> ions and I2; the MXene nanosheet is at least one of Ti < 3 > C < 2 > T < x >, Nb < 2 > T < x >, Mo < 2 > T < x > and V < 2 > T < x >.

The utility model discloses a double-station automatic press-fitting machine, which aims to solve the technical problems of low press-fitting efficiency and large occupied area of the press-fitting machine in the prior art, comprises a rack, a press-fitting device and a PIN feeding mechanism, and is characterized in that the PIN feeding mechanism is positioned above the rack, the press-fitting device is vertically suspended above the PIN feeding mechanism, and the PIN feeding mechanism is positioned above the rack. A press-fitting head is arranged below the press-fitting device, a movable press-fitting block, a left feeding jig and a right feeding jig are arranged on the PIN feeding mechanism, the movable press-fitting block can move within a limited distance of one degree of freedom, and the movable press-fitting block comprises a press-fitting station A and a press-fitting station B. Two sets of press-fitting stations on the PIN feeding mechanism are switched back and forth, so that two operation states of the machine are realized, quicker production of materials is realized, the production period is shortened, meanwhile, the number of press-fitting machines is reduced, and the investment funds of enterprises and the occupied area of plants are reduced.

The invention relates to the technical field of coating stirring tank detection, in particular to a detection device for the inner wall of a special coating stirring tank, which comprises a device seat, a positioning mechanism, a wall scraping assembly and a test piece, the device seat is connected with a rotating seat, the rotating seat is rotatably connected with a threaded rod, and the threaded rod is in threaded connection with a lifting sheet; a limiting rod is arranged on the outer side of the threaded rod, a second tooth piece is arranged on the bottom side of the rotating base, a first tooth piece is connected to one side of the second tooth piece, and a first arc-shaped clamp is installed on one side of the device base. According to the scheme, the possibility that residual impurities are attached to the inner wall of the tank body for a long time is reduced, and the possibility that paint corrodes the tank body for a long time is reduced; the secondary cleaning effect of the device on the inner wall of the cleaned tank body is improved, cleaned impurities can be collected, so that the cleaning effect of the cleaning equipment can be detected, multifunctional detection on the interior of the tank body is also improved, and whether corrosion is generated in the inner wall or not can be distinguished.

The invention provides a succinic acid composition as well as polyester and a polyester composite material prepared from the succinic acid composition. The succinic acid composition comprises succinic acid, a compound containing sulfate radicals and a phosphorus compound, the mass content of sulfate radicals in the succinic acid composition is 240 to 500 ppm; the mass content of the phosphorus element in the succinic acid composition is 0.5 to 40 ppm. According to the present invention, by compounding the sulfate radical-containing compound and the phosphorus compound with the specific content, the polyester is prepared by using the succinic acid composition as the raw material, such that the production efficiency of the polyester can be ensured, the polyester with characteristics of low acid value and high viscosity can be obtained, and the corrosion of the polyester or the composition thereof on the metal equipment can be reduced during the polyester composite material extrusion process; the quality of the polyester composite material is ensured.

The invention discloses a touch-type interactive all-in-one machine, and belongs to the field of interactive all-in-one machines, the touch-type interactive all-in-one machine comprises a machine body, a touch screen is fixedly connected to the outer surface of the upper end of the machine body in an embedded manner, a fixing frame is fixedly connected to the outer surface of the lower end of the machine body, a moisture-proof assembly is arranged on the inner side of the fixing frame, and the moisture-proof assembly comprises a movable part and a sealing part; the movable part comprises an air inlet groove formed in the outer surface of the fixing frame, and a first cavity is formed in the inner side of the fixing frame in an embedded mode. The moisture-proof assembly is arranged, and the air inlet groove is blocked and sealed through the movable plate, so that dust and moisture entering the cavity I can be reduced to a certain extent, and the probability of generating condensation in the cavity I can be reduced; and meanwhile, the probability that metal elements in the interaction all-in-one machine are corroded by moisture can be effectively reduced, so that the service life of the interaction all-in-one machine can be remarkably prolonged, and the adaptability and the working stability of the interaction all-in-one machine are improved.

The invention belongs to the technical field of keel bending, and particularly relates to an automatic bending device for a light steel joist, which comprises a conveyor, a bending assembly is arranged above the conveyor, and the device is provided with the bending assembly, so that the light steel joist can be attached to the surface of the bending assembly to be subjected to pre-deformation bending treatment; the light steel joist is subjected to small-angle deformation before formal bending treatment, so that the resilience after edge folding can be reduced, the residual stress in the light steel joist can be released, the possibility of quality problems such as deformation and cracking caused by stress concentration is reduced, the structural strength and durability of the light steel joist are enhanced, and the service life of the light steel joist is prolonged. The stability and reliability of the whole structure are guaranteed, the internal stress distribution is more uniform and reasonable, so that the machining precision and the product quality are improved, the bending consistency of the light steel keel is guaranteed, manual intervention is not needed, the automation degree of the bending process is greatly improved, the labor intensity is relieved, and the production efficiency is improved.

The invention discloses a compressed air dechlorination device, a dechlorination system and a use method of the dechlorination system, and relates to the technical field of air compression energy storage. The compressed air dechlorination device comprises an adsorbent, a retainer and an adsorption tank. The adsorbent comprises a plurality of adsorption layers which are arranged continuously or at intervals in the axis direction of the adsorbent, each adsorption layer comprises an activated carbon bonding layer and an active coke bonding layer, and the adsorption layers at the two ends of the adsorbent are the active coke bonding layers. The two retainers abut against the active coke bonding layers at the two ends of the adsorbent respectively. The air inlet of the adsorption tank is communicated with the air outlet of the salt cavern through a pipeline, and the air outlet of the adsorption tank is communicated with the air inlet of the compressed air power generation system through a pipeline. One retainer is positioned between the air inlet of the adsorption tank and the adsorbent, and the other retainer is positioned between the air outlet of the adsorption tank and the adsorbent. Compared with the prior art, according to the technical scheme, the problem that chlorine in compressed air corrodes a compressed air power generation system can be solved.

The utility model discloses an external circulation self-suction type residual gas recycling reaction device which comprises a reaction kettle body, a stirring paddle is arranged in the reaction kettle body, and the stirring paddle consists of a titanium porous stirring paddle and a stirring rod; the stirring paddle provides stirring power through a variable frequency motor arranged at the top of the reaction kettle; a liquid outlet, a gas outlet, a liquid inlet and a residual gas inlet are formed in the reaction kettle body, the liquid outlet is formed in the upper part of the kettle body, the liquid outlet and the residual gas inlet are formed in the bottom of the kettle body, the liquid outlet is connected with a liquid inlet pipe, the residual gas inlet is connected with a gas inlet pipe, the gas inlet pipe is nested in the liquid inlet pipe, and a three-way pipe is mounted on the liquid inlet pipe. According to the utility model, the design of a self-suction hollow stirring paddle is replaced by the design of external circulation and a large-page porous stirring paddle, so that the corrosion of corrosive gas to the stirring paddle is reduced, the mechanical strength of the stirring paddle is improved, and the service life of reaction equipment is prolonged.

The invention discloses a silicon wafer polishing composition and application thereof. The silicon wafer polishing composition comprises silicon dioxide hydrosol subjected to special treatment, organic alkali, a pH regulator, an anionic water-soluble polymer and water. According to the silicon wafer polishing composition, the conventional alkaline silica sol is subjected to special treatment, particle residues on the surface of the polished silicon wafer can be greatly reduced, and compared with the prior art, the silicon wafer polishing composition has remarkable advantages.

The invention provides a methanol preheating and catalytic cracking system for a methanol engine, a ship and a control method, and belongs to the technical field of ship methanol engines. The problems that an existing methanol engine is difficult in cold start and methanol gasification are solved. The system comprises a methanol engine, a methanol storage tank, a water storage tank, a heat exchanger, an inlet temperature sensor and an outlet temperature sensor, one passage of a third three-way valve is connected with the waste gas output end of the methanol engine, the other passage of the third three-way valve is connected with another cooling water pipeline, and the methanol output end of the heat exchanger is connected with the methanol input end of the methanol engine. The methanol input end is connected with the methanol storage tank, a methanol pump is arranged on a methanol conveying pipeline between the methanol storage tank and the heat exchanger, two passages of the first three-way valve are arranged between the methanol conveying pipelines, and the inlet temperature sensor and the outlet temperature sensor are respectively arranged at a methanol inlet and a methanol outlet of the heat exchanger. The method is mainly used for starting the methanol engine.

The utility model relates to the technical field of RTO tail gas treatment and purification, and discloses a multi-working-condition adaptive RTO tail gas purification treatment device which comprises a box body, a combustor is arranged in the middle of the upper end of the interior of the box body, U-shaped pipes are arranged at the four corners of the upper end of the interior of the box body, through holes are evenly formed in one side of the exterior of each U-shaped pipe at intervals, and the through holes are communicated with the combustor. And an activated carbon filter plate is arranged at the lower end in the box body. When the device is used, tail gas is sucked into the box body through the arranged sucking pump, particulate matter in the tail gas is effectively filtered through the electrostatic rod and the activated carbon filter plate, corrosion and blockage of parts in equipment are reduced, the service life of the equipment is prolonged, the cleaning and maintenance frequency is reduced, and the operation efficiency and stability of the equipment are improved; and when the electrostatic rod and the activated carbon filter plate are used for a long time, the box door is opened to facilitate quick replacement, so that the maintenance time is saved, the downtime is reduced, and the equipment operation efficiency is further improved.

The invention relates to an electrode material for lithium extraction, a preparation method of the electrode material, a lithium extraction electrode and a lithium extraction system, belongs to the field of salt lake lithium extraction, and solves at least one of the problems of fast capacity fading, relatively low overall lithium extraction efficiency and short service life of a lithium extraction electrode for an alkaline solution in the prior art. A preparation method of an electrode material for lithium extraction comprises the following steps: mixing an electrode active material with a rare earth salt solution, and forming a phosphate rare earth layer on the surface of the electrode active material in an in-situ coating manner; the electrode active material comprises lithium iron phosphate and a doped derivative thereof. When the preparation method, the obtained electrode material, the lithium extraction electrode and the lithium extraction system are applied to lithium extraction of salt lake brine, especially alkaline brine, at least one of the cycle performance, the lithium extraction efficiency and the service life is remarkably improved.

The invention discloses green and environment-friendly sea sand mortar as well as a preparation method and application thereof, and belongs to the technical field of building materials. The sea sand mortar comprises sea sand, a composite alkali activator, a cementing material and water, the composite alkali activator comprises potassium carbonate and sodium silicate; the cementing material comprises slag powder and fly ash. The preparation method of the sea sand mortar comprises the following steps: S1, pretreating sea sand; s2, mixing and stirring the slag powder, the fly ash and the sea sand in proportion; s3, adding the composite alkali activator, and stirring twice to obtain the sea sand mortar. The sea sand mortar provided by the invention has good compressive strength and breaking strength and short setting time, so that the mortar is suitable for construction application of rapid repair, and also has the characteristics of low carbon and environmental protection.

The invention relates to the technical field of electrolytic furnaces, and discloses a rare earth molten salt electrolytic furnace based on a continuous uniform feeding structure, the rare earth molten salt electrolytic furnace comprises an electrolytic part, the electrolytic part comprises a furnace body, the bottom of the inner wall of the furnace body is fixedly connected with a molten pool, and the interior of the furnace body is fixedly connected with a cathode and an anode; the cathodes and the anodes are distributed in a staggered mode in the circumferential direction of the furnace body, and a rare earth feeding port is formed in the top of the furnace body. The rare earth molten salt electrolytic furnace based on the continuous and uniform feeding structure can effectively solve the problems that in the prior art, due to the fact that part of rare earth oxides have certain adhesion and high chemical activity when the rare earth oxides are conveyed to the molten salt electrolytic furnace through a spiral feeding machine, the rare earth oxides cannot be separated from the molten salt electrolytic furnace, and the service life of the molten salt electrolytic furnace is prolonged. The problems that due to the adhesion, rare earth oxide is prone to being attached to a spiral blade, a spiral feeding machine is blocked, the conveying efficiency is reduced, and meanwhile corrosion of the blade can be accelerated when the rare earth oxide makes contact with the spiral blade for a long time are solved.

The invention relates to an oxygen delignification pulping method taking bagasse as a raw material, fine pulp and application of the fine pulp, and belongs to the technical field of pulping and papermaking. The pulping method comprises the following steps: preparing a cooking liquor with the alkali amount of 20-30% from sodium carbonate and sodium hydroxide in a mass ratio of (2-9): 1; mixing bagasse with the cooking liquor, and heating and preserving heat under an oxygen adding condition to obtain cooking slurry; washing and screening the cooked pulp to obtain fine pulp and black liquor; preparing green liquor from the black liquor, adding sodium hydroxide into the green liquor until the alkali consumption is the same as that of the cooking liquor, and recycling the green liquor to the cooking liquor. According to the invention, the used chemical agents are sodium carbonate as a main agent and sodium hydroxide as an auxiliary agent, so that corrosion to equipment is reduced, a causticization reaction process is omitted, harmful solid waste pollution caused by the causticization process is avoided, and direct cyclic utilization of the green liquor is realized. The content of silicon in the black liquor is relatively low, so that the risk of silicon interference in an alkali recovery section is reduced.

The invention discloses rock core drilling sampling equipment for geological disaster investigation, and relates to the technical field of sampling, and the rock core drilling sampling equipment comprises a composite mechanism. According to the rock core drilling and sampling equipment for geological disaster investigation, through the design of a composite mechanism, the motor is connected with the butt joint block, and the drill rod is inserted into the inner side of the butt joint block, so that drilling and sampling are conducted on rocks, in the drilling process, the movable frame slides on the outer side of the sliding column so as to ascend and descend, and therefore the work requirement is met; a drill bit mechanism is arranged on the outer side of the drill rod, large rocks are crushed through the drill bit mechanism in the drilling process, meanwhile, rock blocks are guided to enter the inner side of the drill rod, so that a sample is taken out when the movable frame body is lifted subsequently, subsequent treatment is facilitated, and after sampling is finished, the drill bit mechanism is used for crushing the large rocks and guiding the rock blocks to enter the drill rod. When the sample is taken out from the inner side of the drill rod, the sample is taken out more cumbersomely and difficultly, the pushing and pressing mechanism is pressed by the electric push rod, so that the effect of discharging the sample is achieved, and normal operation of equipment is kept.

The invention discloses a gold leaching process using a high-safety bromine-containing substance, and belongs to the technical field of gold extraction. According to the method, the dibromo dimethyl hydantoin and the calcium bromide are prepared into the leaching solution according to a certain proportion, efficient gold leaching is achieved by adjusting parameters such as the pH value and the leaching time under the condition of the metal ion catalyst, and the gold can be effectively adsorbed, analyzed and recycled through the leached pregnant solution. Meanwhile, bromine in the leachate is recycled through an electrochemical method, bromine is prevented from permeating into the environment, the dosage of chemicals is reduced, a complete gold leaching and chemical circulating system is constructed, the gold leaching efficiency is improved, the environmental risk is reduced, the technical applicability is expanded, and the defects that traditional liquid bromine gold leaching is large in toxicity, low in leaching rate and leaching efficiency and the like are overcome.

The invention relates to the technical field of street lamps, in particular to a solar intelligent street lamp which comprises a lamp pole, a lamp holder fixedly connected to the upper portion of the outer surface of the lamp pole, an LED lamp set fixedly connected to the end of the lamp holder, a mounting frame arranged at the top end of the lamp pole, a solar panel arranged on the upper portion of the mounting frame, and an ablation assembly arranged in the middle of the mounting frame. A driving assembly is arranged on the outer surface of the lamp holder, and a conversion assembly is arranged in the lamp holder. Compared with the prior art, the melting assembly is arranged at the connecting position of the solar panel, the rotating disc and the push rod are driven by the motor to do circular motion, then the frame-shaped plate and a connecting structure of the frame-shaped plate are driven to do linear reciprocating motion, and accumulated snow can be cleaned in the moving process of the cleaning plate; the inside and the outside of the friction cylinder are in friction with the friction rod and the arc-shaped plate respectively, heat generated by friction can be transmitted to the surface of the solar panel, a thin ice layer formed on the surface of the solar panel is melted, and the melting speed of thin ice on the surface of the solar panel is increased.

The invention discloses concrete with high salt corrosion resistance and a preparation method of the concrete. The concrete is prepared from 300-400 kg / m < 3 > of cement, 50-150 kg / m < 3 > of slag powder, 1000-1200 kg / m < 3 > of gravel, 650-800 kg / m < 3 > of machine-made sand, 0.5-2 kg / m < 3 > of a modified polycarboxylic acid water reducing agent, 0.005-0.01 kg / m < 3 > of an air entraining agent, 0.05-0.1 kg / m < 3 > of an ion chelating agent, 0.05-0.1 kg / m < 3 > of polyacrylamide, 0.01-0.05 kg / m < 3 > of sodium methyl silicate, 0.1-0.5 kg / m < 3 > of multiwalled carbon nanotube dispersion liquid and 140-160 kg / m < 3 > of water. The preparation method comprises the following steps: stirring and mixing the modified polycarboxylate superplasticizer, the air entraining agent, the ion chelating agent, the polyacrylamide, the sodium methyl silicate and part of the water for mixing to obtain an admixture mixed solution; sequentially putting broken stones, cement, machine-made sand, the admixture mixed solution, the multi-walled carbon nanotube dispersion liquid and the rest of mixing water into a stirrer, and stirring for 2-3 minutes, so as to obtain the concrete with high salt corrosion resistance. The concrete has high salt corrosion resistance in a complex service environment, the service life of a concrete structure is effectively prolonged, and a reliable guarantee is provided for infrastructure construction.

The invention discloses a preparation method of red-mud-based artificial soil, which comprises the following steps: A, mixing and stirring red mud, calcium-based solid waste, industrial ferric salt, manganese slag and water according to a mass ratio, and fully stirring to fully react to obtain dealkalized red mud; wherein the mass ratio of the red mud to the calcium-based solid waste to the industrial ferric salt to the manganese slag to the water is 100: (1-5): (0.1-1): (0.1-1): (10-50); b, mixing the dealkalized red mud with the fly ash, the biomass and the stable organic solid waste, and fully and uniformly stirring to obtain a mixture; and C, naturally stacking the mixture and fertilizing. The method can accelerate the red mud harmlessness and soil treatment process, and reduces the environmental pollution risk of the storage yard.

The present invention belongs to the technical field of salt-salt separation, and relates to a method for flue gas purification and brine purification and refined disinfection salt. The process technology of the method can realize an effective brine purification process according to the change of the original brine characteristics, and can control the SO in the flue gas to purify the 2 , flue gas moisture content and other indicators and SO 3 2‑ , calcium and magnesium ions, excess alkali and solid suspended matter content, so as to reduce the content of calcium, magnesium and other impurities in disinfection salt and increase the content of NaCl in disinfection salt. The present invention effectively utilizes solid-liquid-gas waste, recycles resources, realizes limited resources, unlimited utilization, energy saving and consumption reduction, and green and low-carbon advantages.

The invention provides a preparation method of a neutralizing corrosion inhibitor, which belongs to the technical field of metal corrosion inhibition, and comprises the following steps: uniformly mixing imidazoline quaternary ammonium salt and thiourea, reacting at high temperature, cooling, and recrystallizing to obtain thiourea-based imidazoline quaternary ammonium salt, namely a corrosion inhibition component; 4-pyridyl amidoxime, silane and distilled water are mixed and then heated and stirred, an isocyanate cross-linking agent, octadecylamine polyoxyethylene ether and ammonia water are added, stirring continues, and a neutralizing component is obtained; the neutralization corrosion inhibitor is obtained by uniformly stirring the corrosion inhibition component, the neutralization component, the lignosulfonate and the distilled water. According to the technical scheme provided by the invention, the problem that an existing neutralizing corrosion inhibitor easily generates crystalline salt in an acid environment to promote under-scale corrosion is solved, and the overall neutralizing corrosion inhibition capability is also improved.

The invention discloses a side-flow type electrolytic machining device and method for sealing a casing cavity, an electrolytic machining machine tool comprises a machine tool rotary table and a machine tool spindle, the electrolytic machining device comprises a clamping assembly, a clamping assembly, a clamping assembly and a clamping assembly, the clamping assembly is used for clamping a casing workpiece and fixing the casing workpiece to the machine tool rotary table, and the machine tool rotary table is connected with the positive electrode of a power source; the cathode assembly is connected with the machine tool spindle and arranged on one side of the cartridge receiver in the radial direction of the cartridge receiver so as to form a machining gap with the outer surface of the cartridge receiver, and the machine tool spindle is connected with the negative electrode of the power source; the sealing assembly comprises a sealing sleeve and a pressing mechanism, the sealing sleeve is provided with an inner cavity, a liquid inlet and a liquid outlet, the liquid inlet and the liquid outlet are located on the two sides of the sealing assembly respectively and communicate with the inner cavity, and the sealing assembly is arranged on the cathode assembly in a sleeving mode so that the machining end of the cathode assembly can be located in the inner cavity; the pressing mechanism is used for enabling the sealing assembly to be pressed and sealed on the outer surface of the casing so as to seal the inner cavity, and the liquid inlet is used for introducing electrolyte to flow through the machining gap and be discharged through the liquid outlet.