59results about How to "Realize deep purification" patented technology

The invention relates to a method for driving impurity iron to enrich and purify aluminum alloy return scrap and a product, the aluminum alloy return scrap is placed in a crucible, is heated in a resistance furnace and is subjected to heat preservation for a period of time, so that the return scrap is fully molten, and a melt is obtained; continuously preserving the heat of the melt, connecting two parallel electrodes with a pulse power supply, vertically inserting the two parallel electrodes into the melt, and preheating for a period of time; setting a first pulse voltage, a first pulse current and a first pulse frequency according to the impurity iron content of the aluminum alloy return scrap; second pulse voltage, second pulse current and second pulse frequency are set according to different heat preservation temperatures during melt electric pulse treatment, and electric pulse treatment is applied to the melt for a period of time in the heat preservation stage; and closing the resistance furnace and the pulse power supply after treatment, and cooling the melt along with the furnace to obtain a sample. The method effectively solves the problem of malignant accumulation of impurity iron elements in the aluminum alloy resource recycling process. The method is short in treatment time and high in iron removal efficiency, and the production cost can be greatly reduced.

The invention discloses a prebaked anode carbon capture system for industrial electrolytic aluminum and an operation method, and belongs to the field of carbon capture, the prebaked anode carbon capture system comprises a combined power generation device for supplying power to equipment, a flue gas treatment device and a carbon capture device; the flue gas treatment device comprises a roasting furnace and a calcining furnace, flue gas generated by the flue gas treatment device is subjected to multi-stage treatment to provide raw materials for the carbon capture device, and heat generated by the flue gas treatment device is subjected to multi-stage recycling to provide reaction conditions for flue gas treatment and drive a steam turbine to generate power; the carbon capture device comprises an absorption tower and a motor boiler, and the absorption tower receives flue gas and completes carbon capture under the assistance of steam. A series of efficient flue gas treatment units are adopted, and the purity of carbon dioxide is remarkably improved. In addition, the multi-stage regenerative cycle technology is designed, and the comprehensive utilization efficiency of heat energy is improved. And by adopting a steam-assisted vacuum temperature swing adsorption technology, the dynamic adsorption capacity of gas is enhanced, and the cycle service life of an absorbent is prolonged, so that the economical efficiency and the operating performance of the system are optimized.

The utility model discloses a molybdenum oxide rotary kiln high-temperature tail gas smoke dust treatment device which comprises a fresh air heat exchanger connected to one end of a smoke exhaust pipe of a rotary kiln, a smoke outlet end of the fresh air heat exchanger is connected with a cyclone dust collector, and one end of a fan air outlet of the cyclone dust collector is connected with a convection type heat exchange assembly. The utility model relates to the technical field of molybdenum oxide rotary kiln tail gas treatment, high-temperature waste heat in tail gas is utilized to preheat fresh air used by a rotary kiln, the temperature of the fresh air is increased, and then the combustion efficiency of the rotary kiln is improved. The cooled tail gas further enters a cyclone dust collector, large-particle dust in the flue gas is settled in the cyclone dust collector under the driving action of spiral airflow, and after further heat exchange is carried out on the flue gas subjected to primary dust removal, deep purification of the tail gas is achieved in cooperation with a spraying purification assembly.

The invention provides a high-hardness wastewater chemical membrane coupling softening method which comprises the following steps: firstly, carrying out chemical pretreatment on high-hardness wastewater to obtain softened wastewater, and carrying out flocculent precipitation on the softened wastewater to remove suspended solids and residual hardness ions in the softened wastewater to obtain flocculent precipitation wastewater; the method comprises the following steps: flocculating and precipitating wastewater, filtering the flocculated and precipitated wastewater to obtain filtered wastewater, carrying out membrane separation on the filtered wastewater to obtain separated wastewater, and carrying out evaporative crystallization on the separated wastewater to crystallize salt in the separated wastewater so as to soften the high-hardness wastewater. According to the method, through coupled use of chemical pretreatment and a membrane technology, the softening efficiency is improved, the use of chemical agents is reduced, and the treatment cost is reduced.

The invention discloses a jerusalem artichoke extraction device for diabetic medicinal material production, and relates to the technical field of mixing equipment.The jerusalem artichoke extraction device comprises a workbench, a support is fixedly installed on the top face of the workbench, a stirring barrel is fixedly installed on the top face of the support, and stirring blades are rotationally connected into the stirring barrel; a driving motor is fixedly mounted on one side of the stirring barrel on the top surface of the bracket; an output shaft of the driving motor is connected with the side wall of the stirring blade; and the feeding port is formed in the top face of the stirring barrel, a photoelectric sensor is fixedly installed on the inner wall of the feeding port, a cover plate is installed on the outer surface of the feeding port in a sliding mode, and a plurality of observation windows are formed in the outer surface of the stirring barrel. Not only is the production efficiency improved, but also the production cost is reduced.

The invention discloses an agricultural non-point source pollution treatment system, and relates to the technical field of agricultural environmental protection and water treatment, and the agricultural non-point source pollution treatment system comprises an ecological ditch unit, an ecological pond unit, a connecting pipeline and a control unit; the ecological ditch unit is used for carrying out primary pretreatment on sewage through a plant enhanced corridor and an ecological filter dam to remove suspended solids and part of pollutants; the ecological reservoir pond unit realizes deep purification through a multi-stage process of flocculent precipitation, enhanced denitrification, ecological treatment and a stable area; the control unit intelligently regulates and controls water flow based on water quality monitoring data, water reaching the standard is directly reused in farmland or lakes, and water not reaching the standard enters a pond to be further treated. According to the invention, stepped deep removal of pollutants, cyclic utilization of water resources and self-adaptive operation of the system are realized, and the treatment efficiency and stability are improved.

The invention discloses a stabilizer for heavy metals and phosphorus in a eutrophic water body as well as a preparation method and application of the stabilizer, the stabilizer comprises the following effective components: bentonite, medical stone, molybdic acid and biochar, the mass ratio of the bentonite to the medical stone is (1-3): (3-1), the content of the molybdic acid is 2.5-40g / kg, and the content of the biochar is 20-80g / kg. The core of the invention lies in a synergistic effect mechanism among the biochar, the nonmetallic mineral material and the molybdic acid, and the three components cooperate with each other, so that effective precipitation of heavy metals and phosphorus is promoted, and thorough removal of phosphorus and heavy metals from a water body is realized through subsequent desilting operation. According to the innovative scheme, the treatment efficiency is remarkably improved, deep purification of eutrophication water body pollutants is achieved under the synergistic effect, an efficient and stable solution is provided for water body remediation and environmental protection, and extremely high application value and environmental benefits are shown.

The application discloses a method and device for eliminating white smoke in wet desulfurization flue gas, which mixes hot air with reheated flue gas to eliminate white smoke in the flue gas, collects various temperature and humidity data, and finally calculates the critical heating temperature T of the hot air required for eliminating white smoke in the flue gas HCT , and then adjusts the amount of heat medium of the air heater in real time until the temperature T of the hot air is equal to the critical heating temperature T ah of the hot air HCT , and then the flue gas is discharged. The application can heat the flue gas after wet desulfurization by the intermediate wall heating, mix the flue gas with hot air, determine the critical heating temperature of the hot air for eliminating white smoke in the flue gas in real time, adjust the amount of heat medium in real time to control the temperature of the hot air, automatically control the amount of heat medium for mixed heating and eliminating white smoke, and thus eliminate white smoke and avoid unnecessary energy consumption of the device caused by the lack of theoretical basis for adjusting the temperature of the discharged flue gas by the operator.

The invention provides a homogeneous metallocene catalyst preparation system and method. The system comprises a homogeneous metallocene catalyst synthesis unit, a solvent condensation and collection unit and a gas purification unit, the homogeneous metallocene catalyst synthesis unit comprises a fluidized bed reactor; the solvent condensation and collection unit comprises a condenser; and the gas purification unit comprises a fluidized bed gas purifier. The method comprises the following steps: adding a solid metallocene ligand and a solvent into a fluidized bed reactor, introducing protective gas, and spraying a metal ion solution to generate a homogeneous metallocene catalyst; the protective gas entraining the solvent enters a condenser for condensation; and then the protective gas enters a fluidized bed gas purifier to be purified. The synthesis of the homogeneous metallocene catalyst and the purification of the gas are completed by adopting the double fluidized beds, the content of water and oxygen in the atmosphere in the reaction process of the metallocene ligand and the metal ions is reduced, and the conversion rate of the active center in the reaction process is improved.

This invention relates to the fields of adsorbent preparation and heavy metal remediation technology, and particularly to an amorphous iron-magnesium-aluminum silicate, its preparation method, and its applications. This invention utilizes molten salt-mediated ion exchange and lattice recombination under high-temperature conditions to completely and uniformly transform various silicate minerals from complex and inconsistent natural clay minerals into a non-naturally formed, structurally homogeneous, and stable amorphous iron-magnesium-aluminum silicate. This overcomes the limitation of traditional adsorbents having a narrow applicable concentration range, exhibiting extremely strong removal capabilities for heavy metal ions from high to low concentrations, achieving deep purification. Based on the theory of "increasing configurational entropy," this invention proposes the design of a silicate network framework with dense, highly active sites and multiple metals, breaking through the traditional approach of "simple modification" of natural clay minerals. It fundamentally reconstructs their material composition, providing a material that combines low cost with revolutionary adsorption performance.

The application discloses a preparation method of high-purity carbon powder prepared by step-by-step pyrolysis of waste tires, comprising the following steps: S1, removing steel wires and fiber accessories from waste tires, crushing and screening to obtain 80-120 mesh tire rubber powder, placing the rubber powder in a vacuum drying box, drying for 2-4 hours to remove the surface adsorbed water and light volatile impurities of the rubber powder, and obtaining dry tire rubber powder, thus, the closed pressure control vacuum drying pretreatment process can isolate external water vapor and dust, eliminate secondary pollution of the material, efficiently remove the surface adsorbed water, residual oil and light volatile components of the rubber powder under constant temperature conditions, adopt a three-stage gradient series condensation process, separate heavy, medium and light oil gas components according to the boiling point difference of the oil gas components, effectively avoid the problems of incomplete oil gas condensation and component adhesion and mixing, and adopt a dilute hydrochloric acid pickling-weak alkali desulfurization-multiple pure water rinsing grading purification system, low-speed stirring in the desulfurization stage, and consideration of the desulfurization effect and the structural integrity of the carbon powder.

This invention discloses a high-speed centrifugal water injection purification and dewatering method for marine silica sand. This invention relates to the field of silica sand purification technology and includes the following steps: activating the silica sand; sieving the activated silica sand to remove impurities; mechanically grinding the sieved silica sand; treating the ground silica sand with centrifugal water injection, using centrifugal force combined with water injection to remove chloride ions and harmful substances from the silica sand; and dewatering the treated silica sand to obtain finished silica sand. By combining activation treatment, mechanical grinding, and centrifugal water injection purification, chloride ions and impurities such as shells and mud can be effectively removed from the silica sand. This process adopts a step-by-step treatment method: first, activation loosens the colloids on the surface of the silica sand; then, mechanical grinding breaks down the colloidal layer structure; and finally, centrifugal force combined with water injection separates the soluble salts from the silica sand, achieving deep purification of the silica sand.

The invention discloses a coal gasification slag-based porous sponge for uranium mine wastewater treatment and a preparation method thereof, relates to the field of radioactive wastewater treatment and solid waste recycling, and aims to solve the technical problems of poor adsorption inertia, poor interface stability and insufficient selectivity of the existing coal gasification slag-based material in strongly acidic uranium mine wastewater. According to the technical key points, the method comprises the following steps: step 1, preparing an alkaline solution, putting the coal gasification slag into the alkaline solution for etching treatment, and collecting the treated coal gasification slag to obtain solid powder A; 2, grinding and mixing the solid powder A and urea, and performing pyrolysis treatment in a nitrogen atmosphere to obtain nitrogen-doped coal gasification slag-based porous sponge B; 3, placing the porous sponge B in a mixed acid solution of nitric acid and hydrochloric acid for carboxylation modification to obtain sponge C with the surface rich in carboxyl; step 4, immersing the sponge C into a PEI aqueous solution; pEI is chemically bonded with the sponge through carboxyl on the sponge C, and the coal gasification slag-based porous sponge is obtained.

The invention belongs to the technical field of molecular sieve purification equipment, and provides an intelligent purification device for molecular sieve activated powder. The device further comprises at least two adsorption mechanisms and at least two photolysis filtering mechanisms. The multiple photolysis filtering mechanisms are electrically connected with the electric control mechanism. Wherein one part of the adsorption mechanisms are arranged on the front side of the photolysis filtering mechanism in the direction close to the gas inlet, the other part of the adsorption mechanisms are arranged on the rear side of the photolysis filtering mechanism in the direction close to the gas outlet, and the adsorption mechanisms and the photolysis filtering mechanism are both provided with molecular sieve activation powder for adsorbing and catalyzing waste gas. The electric control mechanism is started, and waste gas flows in from the gas inlet, sequentially passes through the adsorption mechanism and the photolysis filtering mechanism and then flows out from the gas outlet to complete intelligent purification. Compared with the prior art, by arranging the adsorption mechanism and the photolysis filtering mechanism which are both provided with molecular sieve activation powder, the device has multiple purification effects, and has the characteristics of intelligent and efficient purification and more thorough purification; the frequency of frequently replacing purification materials is reduced, and the advantages of energy conservation and environmental protection are achieved.

This utility model relates to the field of electro-deionization water purification technology and discloses an electro-deionization water purification device, including a shell assembly. A rubber diaphragm is fixedly installed on the upper inner wall of the shell assembly, an electrode assembly is installed on the outer wall of the shell assembly, a ring-shaped sterilization assembly is installed on the lower inner wall of the shell assembly, and an auxiliary assembly is installed at the bottom of the shell assembly. The electrode assembly facilitates the directional migration of ions in the water under the action of an electric field, with cations moving towards the cathode and anions moving towards the anode. This ion migration allows for the effective removal of ions from the water, thereby achieving deep water purification. Furthermore, the rubber diaphragm allows it to regain its adsorption capacity, ensuring stable operation of the device over a long period and reducing the frequency and cost of chemical regeneration.

The invention belongs to the technical field of coke oven gas purification, and particularly relates to an environment-friendly and efficient oxidation process desulfurization regeneration tail gas treatment system and a method thereof.The system is characterized in that the system is a multi-stage step-by-step washing system and comprises an alkaline washing tower, an acid washing tower and a water washing tower, and a regeneration tail gas inlet pipe is connected to the bottom of the alkaline washing tower; primary washing tail gas at the top of the alkaline washing tower is connected with the bottom of the pickling tower through a pipeline, secondary washing tail gas at the top of the pickling tower is connected with the bottom of the water washing tower through a pipeline, a bleeder is arranged at the top of the water washing tower, the bottom of the bleeder is isolated from the interior of the water washing tower through a partition plate, and an overpressure return pipe is arranged between an outlet of the tail gas fan and the bleeder and provided with a switch valve. And a pressure gauge is arranged on an outlet pipeline of the tail gas fan and is in interlocking control with the switching valve. The method has the beneficial effects that the existing environmental protection standard can be met, ammonia in the tail gas can be recycled, no sewage is discharged, and the method has the characteristics of environmental protection, high efficiency, stable and reliable process and easiness in implementation and popularization.

The invention relates to the technical field of rural sewage and organic chemical engineering sewage treatment, in particular to a rural sewage and organic chemical engineering sewage comprehensive treatment method which comprises the following steps: pretreating rural sewage and organic chemical engineering sewage by using an aerated grit chamber; the rural sewage and the organic chemical sewage treated by the aerated grit chamber enter a grating tank to be treated; the rural sewage and the organic chemical sewage treated by the grating tank sequentially enter an anaerobic tank, an anoxic tank and an aerobic tank to be treated; the rural sewage and the organic chemical sewage treated by the aerobic tank enter a membrane bioreactor to be treated; the rural sewage and the organic chemical sewage treated by the membrane bioreactor enter the reverse osmosis mechanism to be treated. According to the invention, the sewage treatment efficiency is improved, efficient purification and resource utilization of sewage are realized by reducing pollutant discharge, natural water is protected from being polluted, and virtuous circle of ecological environment is promoted.

The utility model relates to an air draft system of a frying workshop, which belongs to the technical field of air treatment in the food processing industry and comprises a frying workshop body. The oil fume pretreatment device has the advantages that oil fume in the oil frying workshop body is sucked into the pretreatment tank through the exhaust fan, at the moment, large oil fume particles can be preliminarily removed through the cyclone separator, heat is taken away through cold water in the water pipe so as to reduce the oil fume temperature, and after the oil fume reaches the position of the main filter box, the oil fume can be recycled. The main filter box adopts a composite multi-layer filter structure and can be respectively responsible for capturing particulate matters with different particle sizes under the filtration of a primary filter layer, an activated carbon adsorption layer and an HEPA (High Efficiency Particulate Air) high-efficiency filter layer so as to realize deep purification and further improve the oil fume filter effect, and finally clean air is discharged through the tail end of an exhaust gas discharge pipe, so that the oil fume purification effect is improved. By means of the structure, consumption of water resources is reduced, the oil fume treatment capacity is high, and secondary pollution is not prone to being generated.

This invention belongs to the field of waste battery recycling, and specifically relates to a method for recycling and processing black powder from waste ternary lithium batteries. The method includes the following steps: S1 Primary acid washing: Mixing nickel- and cobalt-containing aluminum slag (aluminum slag 1) with sulfuric acid at an initial pH of 4-5; S2 Solid-liquid separation I: Separating the mixture obtained in S1 into a filtrate rich in nickel sulfate and cobalt sulfate, and aluminum slag 2; S3 Back-conditioning of filtrate 1; S4 Precipitation and recovery of aluminum slag 2. The technical solution of this invention achieves efficient recovery of valuable metals and deep purification of impurity metals, solving the technical bottleneck of traditional hydrometallurgical processes where these two aspects are difficult to balance. This invention elevates a traditional wastewater and waste residue treatment process into an advanced process system that achieves efficient resource conversion, internal recycling synergy, and a win-win situation for both economic and environmental benefits. It has significant application value in the field of non-ferrous metal resource recycling, especially in the field of lithium-ion battery recycling.

The invention discloses a cadmium-containing wastewater advanced treatment technology, and relates to the technical field of wastewater treatment.The treatment technology comprises the following steps that S1, raw water pretreatment is conducted, specifically, acidic cadmium-containing wastewater is independently collected, a precipitator is added, stirring is conducted, and after aeration and standing are conducted, supernate and sediment are obtained; s2, deep treatment: carrying out advanced oxidation treatment on the pretreated wastewater to break complexation; s3, follow-up treatment: adding a special chelating agent into the wastewater subjected to advanced treatment for treatment; s4, detecting and discharging: discharging the treated wastewater into an intermediate water tank after the treated wastewater is detected to be qualified. The cadmium-containing wastewater is deeply treated by using the complex breaking agent and the heavy metal capturing agent, so that cadmium ions and other harmful substances in the wastewater can be efficiently removed, deep purification of the wastewater is realized, the effluent quality is ensured to meet the discharge standard, and the problems of low discharge standard and high treatment difficulty of the cadmium-containing wastewater are solved; the requirement of long-term operation of a sewage plant is met, and remarkable economic benefits and social benefits are brought.

The invention belongs to the technical field of deep purification of solutions, and discloses a deep removal process for aluminum, silicon and aluminum and silicon in a high-alkali, low-aluminum and low-silicon solution. The preparation method comprises the following steps: mixing a magnesium compound or a calcium compound or a magnesium and calcium compound with a part of high-alkali, low-aluminum and low-silicon solutions for size mixing, heating and reacting to obtain an aluminum-removing or silicon-removing or silicon-aluminum-removing additive; the method comprises the following steps: adding an additive for removing aluminum or silicon or removing silicon and aluminum into a high-alkali, low-aluminum and low-silicon solution, heating, and reacting, so as to deeply remove aluminum or silicon or silicon and aluminum in alkali liquor. The process disclosed by the invention is wide in application range, good in removal effect of aluminum or silicon or silicon and aluminum, and capable of realizing cyclic utilization of the alkali liquor.

The invention discloses an aerobic treatment system for livestock and poultry excrement and urine sewage, which comprises: a sewage collection tank, one side of which is connected to a sewage pipe through a pipeline; a solid-liquid separation system, one end of which is provided with a sewage inlet, the sewage inlet is connected to the sewage collection tank through a pumping pump, one side of the solid-liquid separation system is provided with a sewage pipe for discharging liquid sewage passing through a screen, and the other side of the solid-liquid separation system is provided with a feed pipe; a composting mechanism is arranged outside the solid-liquid separation system and connected to the feed pipe; a static tank is arranged on one side of the solid-liquid separation system, the outside of the static tank is connected to the sewage pipe through a sewage pump 1, the bottom channel of the static tank is connected to an external membrane filtration system, and the upper channel of the static tank is connected to a centrifugal separator through a sewage pump 2; an aerobic fermentation system is connected to a clarifying separation channel of the centrifugal separator, and the turbid liquid separation channel of the centrifugal separator is connected to the external membrane filtration system.

This application discloses a multi-angle purification and air supply device for central air conditioning, relating to the field of air conditioning. It includes an air supply duct and a mounting plate fixed to one side of the air supply duct. Multiple air outlets are formed on the surface of the mounting plate, and an air guide mechanism is installed inside each air outlet, partially located inside the air supply duct. An air inlet is formed at the end of the air supply duct away from the mounting plate. A filter module is fixedly inserted into the side of the air supply duct near the air inlet. Inside the filter module, a pre-filter, a HEPA filter, and an activated carbon filter are arranged sequentially along the airflow direction. A centrifugal fan and an axial fan are fixedly installed inside the air supply duct near the mounting plate. This application uses a motor to drive a spur gear to rotate, causing the gear plate to move and the universal joint structure to deflect at an angle, thereby causing the air guide plate to rotate around the rotating rod, achieving multi-directional flexible adjustment of the air supply angle to meet the needs of different scenarios.

The application discloses a method for extracting rare earth from monazite concentrate, which comprises the following steps: step 1, mixing monazite concentrate with a preset amount of phosphorus-rare earth co-precipitation slag, adding sodium hydroxide solution and CaO powder, controlling the temperature to be 120-180 DEG C under sealed stirring and keeping the reaction for 9-12 h, so that the monazite concentrate and the phosphorus-rare earth co-precipitation slag are fully decomposed under alkaline conditions, and a mixed slurry is obtained; step 2, filtering and separating the mixed slurry in step 1, washing the filter residue with hot water at 80 DEG C for multiple times, and collecting the decomposition liquid and the decomposition residue respectively; and step 3, adding a preset amount of hydrochloric acid and hydrogen peroxide mixed solution into the decomposition residue in step 2, stirring and reacting at 80 DEG C for 2 h, and obtaining acid-insoluble residue and rare earth chloride solution after filtration treatment, so that the rare earth is extracted from the monazite. The application aims to reduce the concentration of sodium hydroxide in the monazite alkaline decomposition process.

This invention discloses an air particulate matter separation device and method. The device includes a fan, a purified water chamber, and a multi-stage separation chamber. A filter element is installed within the multi-stage separation chamber. The fan blows air carrying dust particles into the multi-stage separation chamber, causing the dust particles (calcium carbonate particles) to be filtered onto the filter element. The multi-stage separation chamber is connected to a first gas separation mechanism, which in turn is connected to the purified water chamber. The purified water chamber stores distilled water. The first gas separation mechanism separates carbon dioxide from the air and inputs the carbon dioxide into the purified water chamber, converting the distilled water into carbon dioxide-containing water. The purified water chamber is connected to the multi-stage separation chamber, and the filter element is rinsed using this carbon dioxide-containing water. During physical rinsing, carbon dioxide, water, and calcium carbonate react to form calcium bicarbonate dissolved in the water, effectively removing dust particles adhering to the filter element, preventing filter pore clogging, extending filter element life, and avoiding frequent filter element replacements.

The utility model relates to caustic washing tower tail gas treatment technical field, and disclose a kind of for anti-blocking device of caustic washing tower, including caustic washing tower main body, caustic washing tower main body side is connected with spraying chamber, caustic washing tower main body other side is connected with water tank;Several first spray pipes are installed in caustic washing tower main body, and first spray pipe is used to spray lye in caustic washing tower main body, and carry out multiple reactions with unreacted completely tail gas;Communication pipe is communicated between caustic washing tower main body and spraying chamber;The inner wall top of spraying chamber is fixed with baffle, and the setting of baffle prevents that one aspect prevents plugging caused by chemical liquid spraying at first air inlet pipe, guarantees the smooth of tail gas emission;Another aspect makes tail gas and the air of third air inlet pipe enter fully mixed and then from lower to upper and contact reaction with spraying chemical liquid, increases the contact time and contact area of tail gas and chemical liquid, improves reaction efficiency, ensures that harmful substance in tail gas can be more fully treated.

This invention provides a method for deep purification of copper salt solutions, comprising the following steps: adjusting the copper salt solution to a first pH and then performing resin silver removal treatment to obtain a silver-removed solution; adjusting the silver-removed solution to a second pH and mixing it with sodium sulfite to obtain a mixed solution; mixing the mixed solution with copper powder for a precipitation reaction to obtain a chloride-removed solution; performing iron removal treatment on the chloride-removed solution to obtain an iron-removed solution; performing fractional extraction treatment on the iron-removed solution to obtain a cobalt-removed solution; and using an ion exchange resin column to perform deep purification of the cobalt-removed solution to obtain a high-purity copper salt solution. This invention achieves deep purification of multiple impurities in copper salt solutions through multi-stage targeted purification, ensuring low copper loss and producing a high-purity copper salt solution. The method has the advantages of a short process, high product purity, and stable industrial application.

This invention belongs to the field of formaldehyde removal technology, specifically a formaldehyde removal agent quantitative release device, comprising a shell structure; the shell has an inner liner connected to it, which together with the inner wall of the shell forms a sandwich space for diverting the incoming formaldehyde removal agent; the inner sidewall of the inner liner is evenly distributed with multiple atomizing nozzles; in this invention, a liquid pump accurately delivers formaldehyde removal agent mixed with a photocatalyst, which is atomized by the atomizing nozzles and flows to the diversion pipe under the drive of the internal swirling flow, and the first fin rotates to expand the diffusion range and accelerate the diffusion speed, and works with the first lamp to activate the photocatalyst, achieving full mixing of the agent with the air, enhancing the formaldehyde removal effect; the various functional components achieve coordinated action through mechanical linkage, reducing dependence on additional power sources, with a compact structure and good operational coordination; the overall equipment forms a highly efficient and coordinated purification system in terms of dust removal, formaldehyde removal, photocatalytic activation, and agent diffusion.

The invention relates to a magnetic control rotational flow steel ladle and a clean steel refining method. The magnetic control rotational flow steel ladle comprises a steel ladle with a shell made of non-magnetic steel; the electromagnetic induction assembly is arranged on the periphery of the steel ladle; the cross section of the steel ladle is round, at least one argon through hole is formed in the bottom of the steel ladle, the distance between the center of the argon through hole and the circle center of the bottom of the steel ladle is 1 / 2-3 / 4 of the radius of the bottom of the steel ladle, the argon through hole is filled with a porous air brick, and the porous air brick is connected with an argon source. Argon bubbles are blown to molten steel in a steel ladle through the eccentrically-arranged porous air brick, the electromagnetic induction assembly provides an external magnetic field for the molten steel to drive the molten steel to horizontally rotate, and due to the fact that the position of the argon through hole deviates from the circle center of the bottom of the steel ladle, the argon bubbles are distributed in the steel ladle in a dispersed mode along with the horizontally-rotating molten steel; and the argon bubbles can capture small-particle inclusions in the molten steel easily, impact on a slag-gold interface is restrained through the argon bubbles distributed in a dispersed mode, slag holes are restrained from being formed, and the quality of clean steel is improved easily.

This utility model discloses a filtration device for industrial preservative processing, specifically relating to the technical field of filtration equipment. It includes a first filter tank and a second filter tank, both with covers installed on their tops. A feed pipe is fixedly connected to one side of the first filter tank. A filtration cleaning mechanism is installed inside the first filter tank, and a filtration treatment mechanism is installed inside the second filter tank. The filtration cleaning mechanism includes a first fixing plate. This utility model achieves deep purification through a three-layer filtration structure consisting of a coarse filter, a fine filter, and a high-precision filter within the first filter tank, effectively improving the stability and safety of the preservative. When the filter is clogged, a water pump drives a nozzle on a ring pipe to spray high-pressure water, backwashing the three layers of filter. The impurity mixture is directly discharged through a drain pipe. The entire process requires no machine shutdown or filter replacement, significantly reducing production interruption time.