309results about How to "Improve desulfurization effect" patented technology

The invention relates to the field of metallurgy, and discloses a KR desulfurization method, in a molten iron pretreatment process, under the conditions that a KR stirring head is inserted into molten iron in a ladle and the KR stirring head rotates, a first desulfurization agent and a desulfurization auxiliary agent are added to the surface of the molten iron at the same time, and then a second desulfurization agent is added to the surface of the molten iron; and the molten iron in the ladle is desulfurized. The KR desulfurization method disclosed by the invention is beneficial to shortening the desulfurization time and improving the production efficiency while meeting the desulfurization effect, and is suitable for popularization and application in iron and steel enterprises.

The invention discloses a rotary counter-hedge industrial waste gas desulfurization system and a process thereof, comprising a reaction cylinder, wherein a top cover is fixedly connected to the top of the reaction cylinder, and an air inlet pipe is arranged on one side of the top cover; the rotary stirring action of the transmission blades is helpful to maintain the uniform distribution and flow state of the gas-liquid two phases in the mixing cylinder, which can accelerate the material diffusion and mass transfer process, and can increase the gas-liquid contact surface, thereby improving the efficiency of the desulfurization reaction; at the same time, the dirt, sediment and residue on the inner wall surface of the reaction cylinder and the mixing cylinder are cleaned by a soft scraper and a cleaning brush, thereby reducing the obstruction of the dirt to the gas-liquid reaction, allowing the gas and liquid to flow and mix more smoothly, thereby improving the desulfurization efficiency of the equipment, and the continuously rotating nozzle can make the reaction liquid spray into the waste gas in a more uniform and wider manner, thereby increasing the contact area of ​​the gas-liquid two phases, thereby accelerating the mixing effect between the waste gas and the reaction liquid.

A water film desulfurization device and an implementation method thereof, belonging to the technical field of flue gas desulfurization, is designed to solve the problems of poor internal solution filtering effect of existing wet desulfurization spray equipment, easy blockage during the circulation process, and low filtering efficiency; the present invention drives the scraper to move up and down through a driving mechanism and a screw rod, and the scraper cleans the inside of the filter screen when it moves up and down, and when the scraper moves upward, the scraper pushes the guide rod upward to cause the second rotating shaft to rotate, and the second rotating shaft drives the filter screen to rotate half a circle through the first rotating shaft and the connecting shaft, so as to realize the cleaning of the inside and outside of the filter screen, and at the same time, the driving mechanism generates positive pressure inside the inner cavity through the positive and negative pressure mechanism, when the pressure is positive, the one-way valve plate opens, and the water liquid and mixed blockages in the inner cavity are discharged from the one-way valve plate, and when the pressure is negative, the one-way valve plate closes, and the water liquid enters through the filter screen, which can flush the filter screen, prevent the sprayer from being blocked or the spraying effect from being poor, thereby improving the dust removal and desulfurization effects.

The invention relates to a butterfly valve steel ladle bottom argon blowing refining device and a using method thereof.The butterfly valve steel ladle bottom argon blowing refining device comprises a support and a molten steel containing component arranged on the support, and the molten steel containing component comprises a steel ladle barrel arranged on the support and a ladle wall brick arranged in the steel ladle barrel; a center air brick is embedded in the center of the ladle wall brick, a plurality of eccentric air bricks are arranged at the eccentric position of the ladle wall brick at equal intervals along the circumference, and air guide holes corresponding to the center air brick and the eccentric air bricks are formed in the bottom of the steel ladle cylinder. Finally, during working, the device integrates the eccentric argon blowing function and the central argon blowing function, the refining effect on molten steel can be effectively improved, and reliable guarantee is provided for the performance of a final butterfly valve finished product.

The invention discloses a flue gas desulfurization cyclone which comprises a tank body, a top cover is installed at the top end of the tank body, a water inlet pipe is arranged at the top of the top cover, supporting legs are arranged at the bottom end of the tank body, a gas inlet pipe is arranged on one side of the bottom end of the tank body, a water drainage pipe is arranged on the other side of the bottom end of the tank body, and a gas outlet pipe is arranged on one side of the top end of the tank body. A driving assembly is mounted at the bottom end of the tank body, a plurality of groups of supporting assemblies are mounted on the inner wall of the tank body, a fixing assembly is mounted on one group of supporting assemblies at the top end, filtering assemblies are mounted on the other supporting assemblies, mist making assemblies are coaxially arranged in the filtering assemblies, the mist making assemblies are connected up and down, and each mist making assembly is provided with a water inlet and a water outlet. And the atomizing assembly at the top end is connected with the fixing assembly, the atomizing assembly at the bottom end is connected with the driving assembly, and the cyclone can continuously treat flue gas.

The utility model discloses a desulfurizing absorption tower synergistic device which comprises a multiphase flow reinforced rotary-cut turbulent flow unit arranged at the upper part in a tower body of a first-stage absorption tower, and the multiphase flow reinforced rotary-cut turbulent flow unit is arranged between a spraying layer and a flue gas inlet in the absorption tower; the multiphase flow reinforced rotary-cut turbulent flow unit comprises a horizontal mounting plate and a turbulent flow module arranged on the mounting plate; the turbulent flow module comprises an inner cylinder, a middle cylinder and an outer cylinder, the inner cylinder is sequentially sleeved with the middle cylinder and the outer cylinder, first blades are evenly distributed between the middle cylinder and the outer cylinder in the circumferential direction, and second blades are evenly distributed between the inner cylinder and the middle cylinder in the circumferential direction. Slurry sprayed by the spraying layer and rising flue gas are fully mixed under the action of the multiphase flow reinforced rotary-cut turbulent flow unit and then fall to the bottom of the absorption tower. The spirally rising flue gas can increase the gas-liquid contact area and improve the gas-liquid mass transfer rate, so that the desulfurization and dust removal efficiency is improved.

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 industrial waste gas desulfurization cylinders, in particular to an industrial waste gas desulfurization cylinder, which solves the problem that the industrial waste gas desulfurization effect is poor as the neutralization reaction between an alkaline solution and sulfide in waste gas is not thorough due to the fact that the retention time of the waste gas entering the desulfurization cylinder is too short, and comprises a desulfurization cylinder body, a plurality of supporting rods are mounted at the bottom of the desulfurization cylinder; a liquid inlet pipe is connected to the bottom of the desulfurization cylinder; a valve is mounted on the liquid inlet pipe; an air inlet pipe is mounted in the middle of the desulfurization cylinder; an air outlet wheel is connected to the bottom of the rotating pipe, a plurality of separation blades are arranged on the air outlet wheel, a conveying pipe is installed between the middle and the bottom of the desulfurization cylinder, a spraying device is installed at one end of the conveying pipe, a conveying pump is installed on the conveying pipe, and a spiral belt is arranged in the desulfurization cylinder.

The utility model relates to the technical field of desulfurization, and discloses a multi-tube type high-efficiency desulfurization device, which comprises a bottom bin, a desulfurization part and a discharge bin, the desulfurization part is formed by vertically stacking and fixing a plurality of desulfurization components together, the lowest desulfurization component is fixed at an opening at the top of the bottom bin, and the discharge bin is fixed at the bottom of the bottom bin. And the discharge bin is fixedly mounted at an opening in the top of the uppermost desulfurization assembly. According to the multi-pipe type efficient desulfurization device, as the mounting shaft is in a reciprocating forward and reverse state, the spraying pipe can be driven to rotate clockwise and then rotate anticlockwise to reset, so that the atomizing nozzle is in a small-angle swinging state, and spraying corners and dead angles existing when the atomizing nozzle is in a fixed state can be supplemented in the moving process of the atomizing nozzle; the atomizing nozzle is free of corners and dead corners during spraying, sufficient and uniform contact between flue gas and lime emulsion is guaranteed, and the desulfurization effect on the flue gas is improved.

The utility model discloses a boiler flue gas dry desulfurization device which comprises a desulfurization tank, a flue gas inlet pipe and a flue gas exhaust pipe are respectively arranged on two sides of the desulfurization tank, a manhole is arranged at the front end of the desulfurization tank, a material collecting box is arranged at the bottom end of the desulfurization tank, a medicament box is arranged on one side of the material collecting box, a discharge port is arranged at the bottom end of the medicament box, and a gas outlet is arranged at the bottom end of the medicament box. And a feeding pipe is mounted at the top end of the medicament box. By arranging the material collecting box, the medicament box, the feeding pipe, the feeding motor, the conveying pipe and the spiral packing auger, alkali powder is recycled, the spiral packing auger is driven to rotate by the operation of the feeding motor, the alkali powder in the medicament box is conveyed into the conveying pipe and is fed into the desulfurization tank from the top end, and under the action of gravity, the alkali powder in the medicament box is conveyed into the desulfurization tank. The alkali powder can fall into the material collecting box, and the alkali powder is guided into the chemical agent box by matching with the appearance of the material collecting box, so that the alkali powder is repeatedly used, and the loss and the use cost of the alkali powder are reduced.

The invention relates to the technical field of flue gas desulfurization, in particular to a limestone-gypsum wet desulfurization device, which is characterized in that a plurality of spray pipes are annularly arranged in a desulfurization tower, and spray holes are formed along the circumferential surfaces of the spray pipes, so that limestone slurry is horizontally sprayed out, the direct impact of flue gas on the spray holes and the attachment of reactants are effectively avoided, and the desulfurization efficiency is improved. And the blocking risk is reduced. And meanwhile, the horizontally sprayed slurry can clean the surface of the spraying pipe, so that blockage is further prevented. Due to the synchronous lifting and rotating design of the first lifting plate and the stirring blades, the mixing and stirring of slurry with different heights in the desulfurization tower are enhanced, and the stirring efficiency is improved. The second lifting plate and the first lifting plate act synchronously, impurities in the spraying holes are cleaned through a brush, and blockage caused by limestone slurry impurities is avoided. Due to the design, the desulfurization efficiency is improved, the maintenance work is simplified, the maintenance cost is reduced, and the stability and the reliability of the system are enhanced.

The invention relates to a calcium-based solid waste residue slurry desulfurizer, a preparation method, a desulfurization method and a soil remediation agent, and belongs to the technical field of solid waste utilization. The method comprises the following steps: carrying out sedimentation treatment on calcium-based solid waste residue slurry to obtain a calcium-based solid waste residue slurry reaction solution; adding a phase change inhibitor into the calcium-based solid waste residue slurry reaction liquid to obtain mixed slurry; and carrying out solid-liquid separation on the mixed slurry to obtain a solid-phase substance, mixing the solid-phase substance with water, and adding a conditioning agent to obtain the calcium-based solid waste residue slurry desulfurizer. The desulfurizer can be used for desulfurization reaction to obtain a desulfurization solution and desulfurization solid slag; carrying out solid-liquid separation on the desulfurization solution after neutralization reaction to obtain washing water filtrate and secondary desulfurization solid residues; and preparing the soil ecological restoration agent from the desulfurized solid residues and the secondary desulfurized solid residues. The desulfurizer is prepared from the calcium-based solid waste residue slurry discharged by aluminum oxide, alkali resources are recycled, the loss of aluminum oxide is reduced, the desulfurizer is used for flue gas desulfurization, the purpose of resource utilization of solid waste is achieved, and the desulfurizer has the value and significance of reducing pollution and carbon and achieving synergistic interaction.

The invention discloses a thermal power plant slurry treatment device and a slurry treatment method, and belongs to the technical field of waste gas treatment. A thermal power plant slurry treatment device comprises a recovery mechanism arranged at the bottom of an absorption tower, a spraying mechanism is arranged in a tower body of the absorption tower and comprises an upper spraying structure and a lower spraying structure, the recovery mechanism is connected with the upper spraying structure, and filler is arranged between the upper spraying structure and the lower spraying structure. A stirring structure for stirring flue gas is arranged between the filler and the lower spraying structure, and a power structure for driving the stirring structure and the lower spraying structure to rotate is arranged outside the tower body. By adopting the thermal power plant slurry treatment device and the slurry treatment method, the slurry can be recycled, and the waste gas absorption and desulfurization effect of the slurry is improved.

The present invention provides a dry desulfurization agent for comprehensive utilization of solid waste materials, and a preparation method and application thereof. The dry desulfurization agent composition of the present invention comprises, by weight: 30 to 60 parts of white mud; 10 to 40 parts of manganese slag; and 5 to 20 parts of a binder. In some embodiments of the present invention, the manganese slag is electrolytic manganese slag. The present invention provides a new way to comprehensively utilize manganese slag, reduces environmental pollution and safety risks caused by the stacking of manganese slag, and improves the economic benefits of the smelting plant.

The utility model discloses a chain grate-rotary kiln flue gas desulfurization, denitrification and dust removal process package combined device which comprises a chain grate, a rotary kiln and a circular cooler, the chain grate comprises a forced air drying section, an air draft drying section, a first preheating section and a second preheating section, and the circular cooler comprises a first circular cooler section, a second circular cooler section and a third circular cooler section. An upper air bellow outlet of the forced air drying section, a bottom air bellow outlet of the induced draft drying section and a bottom air bellow outlet of the first preheating section are connected to a main air pipe, the main air pipe is connected to a dust remover, the dust remover is connected to a denitration tower, and the denitration tower is connected to a desulfurization tower. Normal work of the chain grate machine, the rotary kiln and the circular cooler on pellet production is guaranteed, high-temperature flue gas is cooled through heat exchange and used for heating desulfurization slurry and water, the preheated desulfurization slurry improves the desulfurization effect, the heated water is further treated to form steam used for spraying a denitration agent, the denitration effect is guaranteed, and energy saving is integrally achieved.

The invention discloses a method for recycling KR desulfurization slag in a converter, and belongs to the technical field of comprehensive utilization of slag. The method comprises the following steps that S1, waste steel is added into a furnace, molten iron is added, and then an oxygen lance is put down for oxygen blowing operation; s2, after oxygen blowing is started, a composite oxidizing agent is added into the converter, the basicity and oxidability of early-stage slag of the converter are controlled, and KR desulfurization slag is added into the converter after oxygen blowing is carried out for 1 min; wherein the composite oxidizing agent is prepared from the following components in percentage by mass: 80 to 90 percent of 2Fe2O3. SiO2 and 10 to 20 percent of MnCO3; or the composite oxidizing agent is prepared from the following components in percentage by mass: 80 to 90 percent of 2Fe2O3. SiO2 and 10 to 20 percent of MnCO3. According to the method, by optimizing the technological parameters of converter early-stage smelting, the KR desulfurization slag can be used for converter smelting, CaO and iron resources in the KR desulfurization slag are utilized to the maximum extent, and therefore the purposes of simplifying the working procedure and reducing the cost are achieved.

The utility model discloses a kiln flue gas cooling device with a desulfurization and denitrification structure, which is characterized in that a flue gas heat exchanger is mounted on the side surface of a flue gas pipe, and a gas outlet pipe is connected to the side surface of the flue gas heat exchanger; according to the kiln flue gas cooling device with the desulfurization and denitrification structure, a gas outlet pipe can extend through sliding between a fixing plate and a second fixing block, after the gas outlet pipe extends to a designated position, the fixing plate is extruded through threads, so that the gas outlet pipe is fixed, and the length of the gas outlet pipe is adjusted; a gas outlet pipe can be conveniently adjusted according to needs when being connected with a pipeline, a reducing agent in a storage tank is sprayed into a denitration reactor through a denitration spray gun so as to react with nitrate in flue gas, and oxides are selectively reduced into nitrogen and water, so that the flue gas can be denitrated by the device; and finally, limestone is sprayed and wetted through a spray head, and the wet limestone can react to produce calcium sulfite when being in contact with sulfur in the flue gas, so that the environmental protection is further improved.

An integrated biological desulfurization system comprises a desulfurization tower and an external circulation pipeline of the desulfurization tower, the desulfurization tower is divided into a biological absorption section and a biological reaction section up and down, and a filler area is arranged in the biological absorption section and located between an air inlet and an air outlet of the desulfurization tower; the biological reaction section is divided into a sulfur reaction area and a sulfur precipitation area left and right, the sulfur precipitation area is provided with a precipitation device with an oblique flow precipitation function, and an oblique flow inlet and an oblique flow outlet of the precipitation device are both communicated with the sulfur reaction area; the external circulation pipeline is communicated with a sludge discharge port of the sulfur settling zone and a spraying port of the biological absorption section, so that liquid rich in microorganisms at the bottom of the desulfurization tower is circulated to the filler zone for desulfurization treatment of sulfur-containing gas. According to the desulfurization tower, sulfur reaction and sulfur precipitation related components are integrated into the desulfurization tower, the structure is compact, the occupied area is small, and efficient removal and recovery of sulfur elements in sulfur-containing gas can be achieved through efficient circulation of activated sludge.

The invention discloses a desulfurization, denitrification and dust removal process for low-sulfur flue gas, belongs to the technical field of desulfurization and denitrification, and aims to solve the problems that gas molecules are not easy to diffuse and adsorb on particle surfaces in a gas desulfurization and denitrification project by using a combined desulfurization and denitrification adsorbent in the prior art; the sulfur capacity, the nitrate capacity, the specific surface area and the desulfurization and denitrification efficiency of combined desulfurization and denitrification need to be further improved. The method comprises the following steps that after mechanical dust in low-sulfur flue gas is filtered through a dust remover, the temperature is reduced to the room temperature, and pretreated waste gas is obtained. Porous high-iron ash is modified through an alkali magnetic method, activated carbon is prepared through activation and modification through an alkali dissolution method and serves as a base material, an adhesive is added, granulation is conducted, and the pretreated waste gas is obtained. The sulfur capacity, the nitrate capacity and the specific surface area of the combined desulfurization and denitrification adsorbent are improved, the desulfurization and denitrification efficiency is improved, and emission of pollutants in sintering flue gas is reduced.

The invention relates to the technical field of multi-component alloy preparation, and discloses a rare earth oxide-containing silicon-barium alloy and a preparation method thereof.The preparation method comprises the following steps: mixing rare earth balls, silica, baryta, a layered composite material, modified carbon fibers, semi-coke and steel cuttings to obtain a mixture; and the mixture is placed in a submerged arc furnace to be circularly smelted, mixed rare earth silicon barium alloy liquid is formed, the mixed rare earth silicon barium alloy liquid is subjected to refining and slagging-off, casting forming is conducted, and the silicon barium alloy containing the rare earth oxide is obtained. The formed layered composite material has relatively high interlayer capacity, and the silicon element and the rare earth element in the mixture can be adsorbed to the interlayer of the layered composite material, so that the formation of a uniformly distributed silicon-barium-rare earth alloy phase is facilitated; the modified carbon fibers are small in size and can be filled into pores of the silicon-barium alloy, the compactness of the alloy is improved, and then the compactness of the silicon-barium-rare earth alloy phase is enhanced.

The invention provides a safe and intelligent control system for an environment-friendly island. The safe and intelligent control system comprises a dry desulfurization system, wherein the dry desulfurization system comprises a desulfurization tower, a mixer and a desulfurizer injection system; a control valve is arranged at the outlet of the desulfurizing tower, the inlet end of the mixer is communicated with flue gas, the outlet end of the mixer is connected with the bottom of the desulfurizing tower, and the side surface of the inlet end is connected with a desulfurizing blowing system; a control method of the control system is provided, and a solution is obtained through scheduling control. The mixer is arranged in front of the desulfurization tower, so that the desulfurization agent is uniformly mixed, the desulfurization effect is good, the desulfurization system is stable, analysis of the control method is facilitated, and the control method is high in adaptability, meets market requirements, is beneficial to popularization and use and is high in synergism; according to the obtained solution, on the basis of reasonability and feasibility, automatic and optimized control conditions of regulation and control of the environment-friendly island are obtained, control is carried out, and the operation quality of the environment-friendly island is guaranteed.

The invention discloses a desulfurization tank with uniform desulfurization effect, the desulfurization tank comprises a tank body, a reciprocating electric cylinder and a push plate, the reciprocating electric cylinder is fixed on the outer wall of the tank body, the output end of the reciprocating electric cylinder is connected with the push plate, and the side surface of the push plate is provided with a multidirectional uniform desulfurization mechanism; the multidirectional uniform desulfurization mechanism comprises a linkage ring fixedly mounted on the side surface of the push plate, the bottom end of the linkage ring is fixedly connected with a plurality of steel wire ropes, and the lower end of each steel wire rope is inserted into the tank body and then is connected with a hinged sleeve block; a concave hinge block is rotationally connected to the outer wall of the hinge sleeve block, an atomizing spray pipe is fixedly mounted on the side face of the concave hinge block and used for atomizing and spraying an alkaline solution in multiple directions, and the desulfurization uniformity of the desulfurization tank is good.

A demisting cleaning mechanism comprises an exhaust pipe, the exhaust pipe is fixedly communicated with one side of a desulfurization box, an exhaust fan is fixedly mounted in the exhaust pipe, the end part of the exhaust pipe is communicated with a water-cooling demisting box, a demister body is fixedly mounted in the water-cooling demisting box, and the demister body is fixedly mounted in the demister body. The demister comprises a demister body, a rotary cold water pipe is rotationally connected into the demister body, an annular water pipe sleeves the rotary cold water pipe, a fixed box is rotationally connected to one end of the rotary cold water pipe, a first bevel gear is fixedly mounted at one end of the rotary cold water pipe, and a water inlet pipe is fixedly connected to one side of the fixed box; a hollow rotating shaft is fixedly installed between the water inlet pipe and the rotating cold water pipe, a second bevel gear is meshed with the bottom of the first bevel gear, a rotating shaft is fixedly connected with the bottom of the second bevel gear, a fixing shell is fixedly connected with the bottom of the water-cooling demisting box, and the cleaning effect of the device is good.

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.

The utility model discloses an industrial flue gas desulfurization device which comprises a tower body, a slurry pond, a filler layer and a demister are sequentially arranged in the tower body from bottom to top, a flue gas inlet is arranged above the slurry pond at the lower part of a spray tower, a purified flue gas outlet is arranged at the top of the spray tower, a desulfurization reactant solution is arranged in the slurry pond, and desulfurization reaction particles are filled in the filler layer. And a multi-layer water curtain wall structure is arranged above the flue gas inlet in the tower body. According to the utility model, the plurality of layers of water curtain wall structures are arranged above the flue gas inlet in the tower body, the water curtain wall structures form a flowing water curtain on the inclined isolation wall body, and meanwhile, the flue gas holes are formed in the water curtain channel; flue gas passes through the flue gas holes under the action of pressure, is fully contacted and reacted with a desulfurization reactant solution forming a water curtain in the water curtain channel, and then rises, so that the desulfurization effect is good.

The present invention relates to the technical field of wet flue gas desulfurization, and in particular to a wet flue gas desulfurization device and a desulfurization method thereof, comprising a bottom box, a desulfurization mechanism installed on the top of the bottom box, the desulfurization mechanism comprising a desulfurization tower, the desulfurization tower fixedly installed on the top of the bottom box, the desulfurization tower being connected to the bottom box, an air inlet fixedly installed on the side of the desulfurization tower, the sliding plate slidably installed inside the desulfurization tower, a through hole is opened on the surface of the sliding plate, a plurality of through holes are provided, the electric fan is rotatably installed on the top of the sliding plate, a plurality of electric fans are provided, and a first threaded rod is fixedly installed on the bottom of the sliding plate. The present invention can scrape the inner wall of the desulfurization tower and also disturb the airflow inside the desulfurization tower through the setting of the desulfurization mechanism, so that the flue gas can pass through the absorption tower more smoothly, and evenly mix with the desulfurizer sprayed down, increase the contact area, and thus improve the absorption efficiency of sulfur dioxide.

The invention relates to the field of desulfurizers, and relates to a method for preparing a desulfurizer by using fly ash, comprising the steps of washing the fly ash with water, filtering and drying the fly ash; uniformly mixing the fly ash, additives, attapulgite, biomass and sludge, grinding and drying the mixture; calcining the dried mixture at high temperature, cooling it to room temperature, adding a desulfurization synergist, and grinding it to nanometer level to obtain a desulfurizer; the carboxyl lanthanum complex can form a stable coordination compound with sulfur-containing gas due to its empty molecular orbital and suitable electron affinity, which is helpful to adsorb and remove sulfide in flue gas; triazine sodium salt promotes the progress of mercapto-ene click reaction in a reaction system, produces a synergistic effect with other reaction components, and enhances the desulfurization performance of the entire system; the desulfurizer prepared by the invention can significantly improve the adsorption capacity of a sulfur adsorbent for sulfur-containing gas, thereby effectively reducing the sulfide content in industrial emissions, and the sulfur fixation rate is as high as 92%, which has a significant desulfurization effect.

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.

The present invention relates to a desulfurization device and a desulfurization method for collaboratively treating boiler flue gas and sulfuric acid tail gas; the device comprises a boiler tail gas system and a desulfurization system, and a sulfuric acid production device; the boiler tail gas system comprises a boiler, and the tail gas pipeline of the boiler is connected to a first pressure gauge; the desulfurization system comprises a middle and lower air inlet of a desulfurization tower, a first online analyzer is arranged at the top gas outlet of the desulfurization tower, a first packing layer is arranged at the inner upper part of the desulfurization tower, a first differential pressure gauge, a first upper flushing water spray device and a first lower flushing water spray device are arranged between the upper and lower sides of the first packing layer, and a first flushing water recovery device is arranged at the bottom of the first lower flushing water spray device; the outlet of the acid mist collector of the sulfuric acid production device is connected to the middle and lower air inlet of the desulfurization tower through a sulfuric acid tail gas pressure gauge, a pollutant detector and a first sulfuric acid tail gas air supply valve; the device has the characteristics of reasonable process design, low initial investment, low power energy consumption, high desulfurization efficiency, good desulfurization effect and environmental friendliness.

The utility model relates to the technical field of flue gas desulfurization, in particular to a desulfurization structure of a double-shaft kiln type calcining furnace, which comprises a base, fixing blocks are arranged on two sides in the base, a filter plate is arranged above the fixing blocks on two sides, and an auxiliary mechanism is arranged between the bottom of the filter plate and the fixing blocks. A butt joint mechanism is arranged at one end of the exterior of the filter plate, a butt joint groove is formed in one side of the interior of the base, a limiting mechanism is arranged in the butt joint groove, and a collecting box is arranged at the position, below the filter plate, in the base. Under the driving of the air cylinder, the connecting block is pushed to move in a reciprocating mode, one end of the connecting block is meshed with the first rack and the second rack through the gear arranged on the rotating shaft, meanwhile, the spraying assembly is driven to move in a reciprocating mode, and therefore the spraying assembly sprays desulfurization liquid to flue gas in the box body back and forth, and the desulfurization liquid is sprayed more evenly; the flue gas desulfurization effect and the working efficiency are further improved, and the practicability of the device is improved.