45results about How to "Improve desulfurization effect" patented technology

The invention discloses a triazine desulfurizer and a preparation method thereof, and belongs to the technical field of gas purification. The triazine desulfurizer is mainly prepared from the following raw materials in percentage by weight: 20 to 50 weight percent of triazine derivative, 10 to 15 weight percent of sterically hindered amine, 3 to 7 weight percent of stabilizer, 1 to 3 weight percent of synergist, 0.5 to 1.5 weight percent of penetrant, 0.5 to 1.5 weight percent of inhibitor, 1 to 2 weight percent of additive and the balance of water, the preparation method of the triazine derivative comprises the following steps: adding 2-(diphenylphosphino) ethylamine into a toluene solvent, adding a paraformaldehyde aqueous solution in batches under a stirring condition, and reacting for 2-8 hours to obtain the triazine derivative. According to the triazine desulfurizer and the preparation method thereof provided by the invention, the triazine derivative and the sterically hindered amine are taken as a host, and the stabilizer, the synergist, the penetrant, the inhibitor and the assistant are compounded, so that the scaling trend of the triazine desulfurizer in an oil and gas well can be slowed down, the dissolution rate of hydrogen sulfide and the mass transfer rate in a solution are increased, and the desulfurization reaction is promoted; the desulfurization effect and the desulfurization rate are improved, and meanwhile, a very good scale inhibition effect is also achieved.

The utility model relates to the technical field of flue gas desulfurization, in particular to a coke oven flue gas desulfurization and regeneration integrated tower which comprises a bottom plate, the top of the bottom plate is fixedly connected with a control plate and a desulfurization cylinder respectively, a first filter screen is fixedly connected in the desulfurization cylinder, the surface of the first filter screen is fixedly connected with a magnetic plate, and a second filter screen is arranged at the top of the first filter screen. The bottom of the second filter screen is fixedly connected with an iron plate, the iron plate is in magnetic attraction connection with the magnetic plate, an insertion groove is formed in the second filter screen, a third filter screen is arranged at the top of the second filter screen, the bottom of the third filter screen is fixedly connected with an insertion rod, and the insertion rod extends into the insertion groove and is in insertion connection with the insertion groove; a driving motor is mounted at the top of the desulfurization cylinder; the stirring rod can be driven to rotate under the power action of the driving motor, and the catalyst is in full contact with the flue gas through the rotation of the stirring rod, so that the flue gas desulfurization effect and the flue gas desulfurization speed can be improved, and the practicability of the whole device is higher.

This invention relates to the field of petrochemical catalytic desulfurization technology, specifically disclosing a high-efficiency desulfurizing agent, its preparation method, and its application in the desulfurization of heavy naphtha. The desulfurizing agent provided by this invention has a "two-level" metal active center. The first level is a cobalt center in biochar, and the second level is a nickel-copper bimetallic center introduced through impregnation on the surface of a composite carrier. The desulfurizing agent provided by this invention has excellent desulfurization effect. Under conditions of 140°C and no hydrogen, it can simultaneously remove inorganic sulfur such as hydrogen sulfide and organic sulfur such as thiols, thioethers, and thiophenes from heavy naphtha obtained by hydrocracking of heavy diesel oil, wax oil, or mixed diesel and wax oil, reducing the total sulfur content from 25-40 μg·g. ‑1 Reduced to 0.2 μg·g ‑1 The following methods can effectively protect bimetallic (multimetallic) reforming catalysts from sulfur poisoning, and the preparation process is green and controllable, making it suitable for large-scale industrial applications.

This utility model provides a rotary kiln flue gas desulfurization device with a sodium-based powder uniformly spraying structure, including: a dust removal component, a powder spraying component, and a pipeline component. The powder spraying component is connected to the pipeline component through a conveying pipe, and the pipeline component is connected to the dust removal component through a connecting pipe. The dust removal component includes: a dust collector body. The pipeline component includes: pipeline one, pipeline two, and pipeline three. Pipeline one and pipeline two are respectively installed at the left and right ends of pipeline two. A vibrator is installed on the upper surface of pipeline two. Compared with the prior art, this utility model has the following beneficial effects: by setting the powder spraying component, the uniform spraying of sodium-based powder during use can ensure that the desulfurizing agent is fully dispersed in the flue gas of the pipeline component. During the flue gas desulfurization process, uniform spraying can give the sodium-based powder more contact opportunities with acidic gases such as sulfur dioxide, thereby forming a better desulfurization effect.

The present application relates to the technical field of metal organic framework materials, in particular to a modified copper-based metal organic framework material, a preparation method and application thereof, and a sulfide removal method. The modified copper-based metal organic framework material comprises a metal organic framework formed by copper and an organic ligand, and silver doped on the metal organic framework; and the crystal surface of the modified copper-based metal organic framework material has long and narrow honeycomb-shaped pores. + and Ag + The modified copper-based metal organic framework material has suitable pore structures and rich adsorption sites for removing various organic sulfides, and the modified copper-based metal organic framework material has Cu + and Ag + which can adsorb sulfides through π bond action, and has a large adsorption capacity and high adsorption selectivity for sulfides (such as mercaptans, sulfides, thiophenes, etc.) as a desulfurization adsorbent.

The utility model relates to the technical field of atmospheric desulfurization, and particularly discloses atmospheric desulfurization equipment. The desulfurization device comprises a treatment tank, an exhaust pipe fixedly mounted on the treatment tank, an air suction and supply fan for conveying air to be desulfurized into the treatment tank, a first desulfurization component arranged in the treatment tank, and a baffle fixedly mounted on the treatment tank. According to the atmospheric desulfurization equipment disclosed by the utility model, when air is subjected to desulfurization treatment, as the lower partition plate and the upper partition plate are arranged in an up-and-down staggered manner, air to be treated enters the desulfurization filler to be subjected to falling treatment, the contact time between the air and the desulfurization filler can be prolonged; air flows through an S-shaped channel formed between the second flow guide plate and the two first flow guide plates, so that the air is in multiple contact with the atomized desulfurization liquid, the retention time of the atmosphere in the treatment tank is prolonged, the desulfurization effect is improved, and harmful dust in the air is purified.

The utility model discloses a spraying mechanism of a boiler desulfurization dust remover, which belongs to the technical field of desulfurization and dust removal and comprises a smoke outlet barrel, a smoke inlet is arranged in the middle of the smoke outlet barrel, a smoke outlet is arranged at the top of the smoke outlet barrel, a desulfurization spraying mechanism is arranged in the middle of the smoke outlet barrel, and a secondary spraying mechanism is arranged at the top of the smoke outlet barrel. According to the device, the desulfurization spraying mechanism is arranged, in the process, slurry is supplied to the flow dividing head through the first ring pipe, the slurry is sprayed out through the three spraying pipes and the first spraying head, the slurry is sprayed out through the second ring pipe, and the slurry is sprayed out through the third spraying pipe and the second spraying head. The slurry can be in full contact with the smoke through spraying of the multiple first spraying heads, meanwhile, the lengths of the three spraying pipes are different, the sprayed slurry can be evenly distributed in the middle of the smoke outlet barrel, even spraying operation on the smoke in the smoke outlet barrel is achieved, and the spraying effect is improved.

Micro-droplet double-strengthened liquefied gas desulfurization reactor, reaction system and reaction method relate to the field of liquefied gas desulfurization treatment, the desulfurization reactor has liquefied gas liquid discharge port in the upper part and amine liquid discharge port in the lower part, the desulfurization reactor has amine liquid area in the lower part, liquefied gas liquid area in the upper part and mixing area formed by the junction of amine liquid area and liquefied gas liquid area, the liquefied gas liquid area is provided with amine liquid nozzle capable of spraying amine liquid droplets, the amine liquid area is provided with liquefied gas liquid nozzle capable of spraying liquefied gas droplets, the pressure environment in the desulfurization reactor is 1.6 MPa or more, so as to keep the liquefied gas liquid entering the desulfurization reactor in liquid phase state, the liquefied gas droplets are desulfurized and mass transfer in the amine liquid area and flow upwards, sequentially contact and react with amine droplets in the mixing area and amine droplets in the liquefied gas liquid area, and complete the desulfurization treatment of liquefied gas. The present application is used to solve the problems of slow desulfurization speed and poor desulfurization effect of hydrogen sulfide in liquefied gas in the removal process.

The invention relates to the technical field of desulfurizing agents, in particular to a ferric oxyhydroxide desulfurizing agent and a preparation method thereof. According to the iron oxyhydroxide desulfurizing agent, zinc oxide nanoparticles are doped on the surface of iron oxyhydroxide, then the zinc oxide nanoparticles and manganese dioxide form a core-shell structure with manganese dioxide as a shell and iron oxyhydroxide as a core, and finally the core-shell structure is loaded on carbon nanofibers to finally obtain the iron oxyhydroxide desulfurizing agent. The iron oxyhydroxide desulfurizer disclosed by the invention has excellent sulfur removal performance, can still keep relatively excellent sulfur removal performance under the condition that interfering ions such as PO4 < 3-> and SO3 < 2-> exist in water, and can be widely applied to the field of industrial sulfur removal.

This utility model discloses a waste heat treatment device for high-temperature flue gas, including a flue gas channel connected to a desulfurization tower. A wastewater collection tank is connected below the desulfurization tower, and the wastewater collection tank is connected to a wastewater pretreatment tank. The wastewater pretreatment tank is connected to a wastewater treatment tank. A heat exchange section is provided on the flue gas channel, and a heat exchange chamber is provided outside the heat exchange section. A steam heat exchange pipe is provided on the wastewater treatment tank, including an inlet end and an outlet end. The outlet end is connected to the heat exchange chamber, and the heat exchange chamber is connected to the inlet end. A spray structure is provided inside the desulfurization tower, connected to a slurry tank, which is connected to a slurry preparation tank. A heat exchange pipe is also provided inside the flue gas channel, with one end connected to a water source and the other end connected to the slurry preparation tank. In this utility model, the flue gas undergoes two cooling and heat exchange cycles before entering the desulfurization tower for desulfurization, improving desulfurization efficiency and effect. Simultaneously, waste heat is recovered and utilized for heating wastewater and preheating the desulfurization slurry, improving waste heat utilization efficiency.

A method for reducing slag viscosity during blast furnace smelting belongs to the field of ironmaking technology. This invention solves the problem that excessively high slag viscosity hinders desulfurization and makes slag discharge difficult. Specifically, it includes the following steps: S1: Increasing the slag temperature from the original 1530℃ to above 1550℃; S2: Controlling the basicity of the slag, which was originally 1.20 to 1.28 times higher, to between 1.15 and 1.25 times higher; S3: Increasing the MgO content in the original slag from 6% to 8% to 12%; S4: Reducing the FeO content in the original primary slag from 35% to ≤22%; S5: Reducing the Al2O3 content in the original slag from 20% to ≤19%; S6: Controlling the CaF2 content in the original slag from 1.0% to 1.0% to 2.0%. This invention, through precise control of the composition, maintains suitable viscosity and surface properties in the slag. It significantly improves the desulfurization reaction efficiency and desulfurization capacity of slag, and improves the quality of molten iron; moreover, the optimized viscosity range, combined with the increased tapping frequency, ensures that slag and iron can be smoothly separated and discharged, promoting efficient smelting.

The application provides a compound, a preparation method thereof and a composition containing the compound. A structural formula of the compound is shown as formula I. The preparation method of the compound is as follows: mixing diisopropanolamine and ethylene glycol diglycidyl ether, adding the mixture into a reaction kettle, adding a solvent, and reacting at 80-120 DEG C for 4-8 h, and then distilling at 50-80 DEG C under reduced pressure, collecting the distillation product, and obtaining the compound; mixing the compound and N-methyldiethanolamine in a mass ratio of (1-2):(2-3), and uniformly mixing to obtain a 20-60 wt% aqueous solution, and obtaining the composition.

This invention relates to a medium-high fluorine, low-alumina slag system for electroslag remelting S-06 stainless steel, belonging to the field of electroslag special metallurgical technology. It addresses the problems of high fluorine content, significant pollution, and poor uniformity of steel ingots produced by existing electroslag remelting slag systems. The mass percentage of each component in the medium-high fluorine, low-alumina slag system of this invention is as follows: CaF2: 56.4%~57.3%, Al2O3: 11.5%~14.9%, CaO: 19.7%~20.2%, MgO: 8.0%~10.0%, SiO2: 0.9%~1.1%, C: 0.04%~0.06%, with the remainder being impurities. The slag system of this invention exhibits good metallurgical effects; when using this slag system for electroslag remelting S-06 stainless steel, the resulting steel ingots show uniform elemental distribution and a uniform slag coating.

The invention discloses an evaluation device and an evaluation method for the desulfurization effect of a desulfurizer. The evaluation device for the desulfurization effect of the desulfurizer comprises an absorption tower treatment structure and a pipeline direct filling structure, wherein the absorption tower treatment structure and the pipeline direct filling structure are connected in parallel on a raw material gas pipeline; one hydrogen sulfide detection mechanism is connected to the raw gas pipeline, and the other hydrogen sulfide detection mechanism is used for detecting the content of hydrogen sulfide in any gas outlet pipeline in the absorption tower treatment structure and the pipeline direct filling structure; when the absorption tower treatment structure and the pipeline direct filling structure operate at the same time, any structure serves as an experimental branch, the other structure serves as a working branch, and the influence of corresponding structure parameters and desulfurizer filling parameters in the two treatment processes on the sulfur capacity is obtained. The method has the beneficial effects that the influence factors on the sulfur capacity under two treatment process conditions are obtained.

The invention provides a method for recycling laterite-nickel ore high-pressure acid leaching residues. The method comprises the following steps that S1, the high-pressure acid leaching residues, pulverized coal and fluorite are mixed in proportion, and then water is added to prepare ore balls; s2, adding coal particles into the ore balls, and carrying out reduction roasting to prepare a roasted sample; s3, the roasted sample is subjected to ore grinding, and crude ore is prepared; and S4, the crude ore is subjected to magnetic separation, and reduced iron powder is prepared. Through the synergistic effect of the fluorite and the pulverized coal, the pulverized coal provides a basic reducing environment, and iron in the high-pressure acid leaching residues is reduced into reduced iron; wherein the fluorite destroys a calcium silicate (CaO-SiO2) network structure, so that the melting point of a slag phase is reduced, the flowability is enhanced, and the reduction reaction efficiency is improved; meanwhile, the pulverized coal provides reduction conditions, and the desulfurization reaction of fluorite is accelerated.

The utility model discloses a flue gas dedusting and desulfurizing device which comprises a tank body, a rotational flow plate assembly, a rotary packing assembly and a fixed packing assembly are sequentially arranged in the tank body from bottom to top, a rotating shaft is rotatably arranged in the tank body, the rotational flow plate assembly and the rotary packing assembly are both fixedly connected to the rotating shaft, and the bottom end of the rotating shaft penetrates through the inside and the outside of the tank body. The side wall of the bottom of the tank body is communicated with an air inlet pipe, the top of the tank body is communicated with an exhaust pipe, a flow guide assembly is arranged between the rotational flow plate assembly and the rotary filler assembly, a first liquid distributor is arranged in the center of the rotary filler assembly, and a second liquid distributor is arranged above the fixed filler assembly. The first liquid distributor and the second liquid distributor are connected with the liquid storage tank through a circulating pipe, and a circulating pump is arranged on the circulating pipe. After the rotational flow plate assembly, the rotary filler assembly and the fixed filler assembly are arranged in the tank body for three-stage collaborative desulfurization, the desulfurization efficiency can be effectively improved, and the occupied area is reduced.

The utility model provides a rotational flow synergistic tray, which relates to the technical field of flue gas treatment equipment, and comprises a rotational flow area and cofferdams arranged upwards on the edges of the rotational flow area, the rotational flow area comprises a bottom plate and a plurality of rotational flow elements which are uniformly distributed on the bottom plate; a circular blocking area is arranged in the center of the cyclone, a plurality of truncated fan-shaped cyclone blades are arranged on the outer side of the circular blocking area in the circumferential direction, and the truncated fan-shaped cyclone blades are bent upwards along the truncated radius of the truncated fan-shaped cyclone blades to form a spiral shape; and the cyclone directions of the plurality of cyclones on the bottom plate are the same. The cyclone synergistic tower is arranged below a spraying layer or among a plurality of spraying layers in the desulfurization tower in a layered manner, when flue gas passes through the cyclone from bottom to top, the flue gas can be uniformly distributed and the gas-liquid mass transfer can be enhanced, and meanwhile, desulfurization slurry sprayed by the spraying layers can be dynamically and uniformly distributed in the cyclone synergistic tower tray through the flow guide structures of the cyclone synergistic tower tray, so that the desulfurization efficiency is improved. Flue gas short circuit caused by slurry bias current is avoided, and the desulfurization efficiency of the desulfurization tower can be effectively improved.

This utility model relates to the technical field of flue gas purification, specifically a flue gas desulfurization device for a circulating fluidized bed boiler, comprising: a boiler, a pretreatment desulfurization component, a water circulation desulfurization component, and a filtration desulfurization component; the water circulation desulfurization component is arranged in multiple layers, which are sequentially distributed between the pretreatment desulfurization component and the filtration desulfurization component; the water circulation desulfurization component includes a water circulation conduit, with its two ends respectively located at both ends of the water circulation desulfurization component for circulating desulfurization; the flue gas is facilitated by the flue gas desulfurization inlet and outlet equipped on the boiler, while the pretreatment desulfurization component can perform preliminary desulfurization after the flue gas enters the boiler, and the introduction of multiple layers of water circulation desulfurization components enhances the desulfurization effect; the water circulation conduit realizes water resource recycling, which is energy-saving and environmentally friendly, with a compact structure, smooth desulfurization, and improves the flue gas treatment capacity and environmental performance of the boiler.

The application belongs to the technical field of desulfurizer, and discloses a natural gas desulfurizer, a preparation method and application thereof, the natural gas desulfurizer comprises 2-(2-morpholine-4-ethoxy)-ethanol and N-methyl diethanolamine with a molar ratio of (1-3):(2-4). The removal rate of H2S reaches more than 98%, and the removal rate of organic sulfur reaches 70%-75%. The application expands the application range of N-methyl diethanolamine as a main agent, and can be used for refining and removing hydrogen sulfide and organic sulfur in the acidic gas in the natural gas, coal chemical industry and petroleum chemical industry process. The preparation process of the composite desulfurizer is simple, the cost is low, the environmental pollution is small, and the application effect is outstanding.

The application discloses a triazine formula solvent for deodorization and application thereof, and the triazine formula solvent comprises the following components: 1,3,5-tri(2-hydroxyethyl)-hexahydro-sym-triazine and a synergist; the synergist comprises dithiothiophene dioxide and piperazine. The triazine compound is selected from 1,3,5-tri(2-hydroxyethyl)-hexahydro-sym-triazine, dithiothiophene dioxide and piperazine are combined to be used as the synergist, the overall desulfurization effect of the triazine formula solvent is greatly improved, the sulfur capacity is improved, and the removal efficiency of hydrogen sulfide and methyl mercaptan is improved. The application is suitable for gas field water flash gas desulfurization.

The application provides a blast furnace gas desulfurizer regeneration device and a regeneration method, and belongs to the technical field of blast furnace gas fine desulfurization, wherein the blast furnace gas desulfurizer regeneration device comprises a regeneration box body, and the regeneration box body is internally provided with a buffer chamber, a reaction chamber and a material conveying chamber; the buffer chamber is communicated with a circulating water pool; the buffer chamber and the reaction chamber are communicated through a flow passage, and the flow passage is internally provided with a first switch; the reaction chamber is communicated with a feeding pipe; the reaction chamber is internally provided with a first liquid return pipe; the material conveying chamber is communicated with the lower part of the reaction chamber through a flow port and a second switch, and the lower end surface of the material conveying chamber is provided with a first material conveying port and a second material conveying port provided with a filter screen. The blast furnace gas desulfurizer regeneration device and the regeneration method provided by the application realize the regeneration of the desulfurizer in the circulating water by setting the buffer chamber, the reaction chamber and the material conveying chamber to react the circulating water with the iron salt, to generate the precipitation by reacting the sulfur in the circulating water, to reduce the sulfur content in the circulating water and to reduce the desulfurizer.

The invention relates to the technical field of environmental protection equipment, and discloses a desulfurizing tower with an automatic cleaning function, the desulfurizing tower comprises a main body, the top end surface of the main body is fixedly connected with a liquid inlet pipeline, the side wall of the main body is fixedly connected with a gas inlet pipeline, and the bottom end surface of the main body is fixedly connected with a motor; an output shaft of the motor is fixedly connected with a rotating shaft, and the other end of the rotating shaft is sleeved with a first scraper. Smoke dust in sulfur dioxide gas is filtered by the filter disc, and alkali liquor deposited at the inner bottom of the main body cannot form sticky slurry with sediments, so that the alkali liquor can be recycled, and the desulfurization effect of the desulfurization tower is improved. Sediments scraped by the second scraping plate and the third scraping plate can be better thrown into the first discharging opening through centrifugal force, and the filtering effect of the filtering disc is improved. The first spring tightly abuts against the end face of the inner bottom of the body through elastic deformation, and the situation that the first scraper is abraded after being used for a long time, and the cleaning effect on the inner bottom of the body is affected is prevented.

This invention discloses a catalytic flue gas desulfurizing agent and its preparation method, belonging to the field of flue gas desulfurization technology. Specific steps include: mixing a carrier with a glucose aqueous solution, molding the mixture, and then subjecting it to drying and calcination. The carrier is then impregnated with an active metal impregnation solution, followed by drying and calcination to finally obtain the catalytic flue gas desulfurizing agent. The carrier is prepared by forming particles in a granulation container using a specific doping composition and a curing agent, followed by calcination. Compared with existing technologies, the catalyst of this invention maintains a high specific surface area and an open mesoporous structure at high temperatures, enhancing mass transfer efficiency and mechanical strength, significantly improving the dispersibility of active components and the diffusion efficiency of reactants, achieving excellent desulfurization effects, and showing promising industrial application prospects.

The utility model discloses desulfurization and deodorization equipment for sulfur-containing wastewater of an oil and gas field, which relates to the field of sulfur-containing wastewater treatment of the oil and gas field and comprises a three-phase separator body, a crude oil treatment box and a wastewater treatment box, a desulfurization layer is arranged in the crude oil treatment box in a sliding manner, and a moving component is arranged in the crude oil treatment box. Through the arrangement of the moving assembly, when petroleum needs to flow onto the desulfurization layer in a dispersed manner for desulfurization treatment, a worker can start the first motor, the first motor works to drive the rotary table to rotate and further drive the pull plate to rotate, the pull plate drives the movable rod to move and then drives the oil collecting tank to move, and the petroleum is conveyed to the desulfurization layer along with continuous rotation of the rotary table. The pulling plate can drive the movable rod to move in a reciprocating mode and drive the oil collecting tank to move in a reciprocating mode, so that oil in the oil collecting tank can flow onto the desulfurization layer in a dispersed mode through the oil distributing holes, other portions of the desulfurization layer can conduct desulfurization treatment on the oil, and the desulfurization effect of the desulfurization layer on the oil is improved.

The present application relates to desulfurization technical field, specifically to a kind of under-liquid slurry supply desulfurization absorption tower and desulfurization method thereof, including tower body, spray layer, oxidizing air pipe, slurry circulating pump, gypsum discharge pump and agitator, further including a under-liquid slurry supply pipeline, slurry pool is equipped in the tower body, slurry supply outlet is equipped on the under-liquid slurry supply pipeline, the slurry supply outlet is arranged on the lateral wall of slurry pool area, the slurry supply outlet position is higher than the effective stirring depth of the agitator paddle, but lower than the slurry pool liquid level position of traditional under-liquid slurry supply.The present application makes that gypsum quality is radically improved, system efficiency and energy saving are remarkable, limestone utilization rate approaches theoretical optimum value, system adaptability is strong, investment potential is big.

The utility model discloses a calcium hydroxide flue gas desulfurization device, including desulfurization box and drive seat, the central position of desulfurization box top end is installed with drive seat, the sidewall of drive seat is installed with step motor, the output of step motor is installed with worm, the top of drive seat is installed with adapter sleeve, the central position of desulfurization box inside is provided with the stirring rod, and stirring rod penetrates drive seat and extends to the inside of adapter sleeve and is connected with adapter sleeve swing, the stirring rod surface of worm one side is equipped with worm wheel, and worm wheel and worm are interlocked, the sidewall of stirring rod is provided with air inlet pipe. The utility model not only has realized the convenient circumferential rotation stirring calcium hydroxide solution and made it with flue gas even contact, has facilitated the quick dismounting of filter block and has replaced and the convenience of circumferential rotation scraping and cleaning the precipitate adhered on the inner wall, and has improved the effect of flue gas desulfurization and the convenience of cleaning precipitate.

The utility model discloses a device of control SO2 emission concentration is fixedly installed with air inlet pipe in the lateral surface of jar body, the inside fixed mounting of air inlet pipe has detection device no.

The invention relates to the technical field of spray towers, discloses a steel mill waste gas energy-saving combustion treatment device and a use method, and aims to solve the problem that the desulfurization effect is reduced due to the fact that spray liquid of an existing waste gas treatment device is difficult to make full contact with hot gas. By flexibly changing the height position of the nozzle, the spraying angle and the coverage range of the desulfurization liquid can be accurately adjusted, so that the slurry wraps dispersed hot flue gas more comprehensively, deep contact and sufficient reaction of the slurry and the dispersed hot flue gas are realized, and finally, the overall desulfurization effect and the treatment efficiency are remarkably enhanced; the rising speed of hot flue gas in the device can be obviously delayed, the contact reaction time of the hot flue gas and a catalyst is prolonged, the hot flue gas is fully permeated into a catalyst system, deep fusion and efficient reaction of the hot flue gas and the catalyst system are ensured, and finally the overall efficiency of catalytic treatment is greatly improved.

This invention belongs to the field of natural gas desulfurization technology, specifically relating to a multi-stage desulfurization device for recovering sulfur-containing natural gas tail gas. It includes an inlet pipe, a desulfurization mechanism, a stirring mechanism, and a purification mechanism. The desulfurization mechanism controls a gas pump to draw natural gas tail gas into the gas transmission pipe through the inlet pipe. Lime solutions inside the first, second, and third tanks sequentially adsorb sulfur dioxide from the tail gas upon contact, thus achieving multi-stage desulfurization and improving the desulfurization effect. The stirring mechanism, controlled by a servo motor, rotates the stirring blades to agitate the lime solution, further enhancing the desulfurization effect. The purification mechanism uses activated carbon plates to adsorb water vapor and impurities in the tail gas, reducing odor emissions. Baffles reduce the speed of the tail gas movement within the fourth tank, increasing the contact time between the tail gas and the activated carbon plates, thereby improving the purification effect.

The invention discloses a calcium-based desulfurizing agent and a preparation method thereof. The calcium-based desulfurizing agent is prepared from the following raw materials in percentage by mass: 53-61% of modified calcium hydroxide, 22-27% of modified activated carbon, 4-8% of an alkali metal compound, 3-5% of a metal oxide and 7-10% of a composite adhesive, the modified calcium hydroxide is obtained by carrying out multi-stage hydrothermal reaction on calcium hydroxide and treating and modifying silicon dioxide and sodium silicate; the modified activated carbon is oxidized activated carbon loaded with iron oxide and magnesium oxide. The calcium-based desulfurizing agent prepared by the method has very high activity, the removal efficiency of SO2 in flue gas can be improved, and the utilization rate of the calcium-based desulfurizing agent can also be improved.