45results about How to "Improve desulfurization efficiency" 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 application belongs to the technical field of carbonyl sulfur hydrolysis catalysts, and discloses a high-efficiency sulfur-resistant catalyst for carbonyl sulfur hydrolysis, a preparation method and application thereof.The preparation method comprises the following steps: (1) preparing a porous ceramic carrier containing alumina, titanium dioxide and zirconium dioxide; (2) in-situ growing a metal organic framework material containing lanthanum, bismuth and cerium on the surface of the porous ceramic carrier by using a solvothermal method; (3) performing a calcination treatment on the porous ceramic carrier loaded with the metal organic framework material in an oxygen-containing atmosphere to obtain a catalyst precursor; and (4) performing a reducing gas plasma bombardment treatment on the catalyst precursor to obtain the high-efficiency sulfur-resistant catalyst.The high-efficiency sulfur-resistant catalyst has high-efficiency low-temperature activity, excellent sulfur resistance and long service life.

The utility model discloses a flue gas inlet guide plate assembly which comprises a guide plate body, the bottom of the guide plate body is fixedly connected with a flow collecting channel, the outer side of the circumference of the flow collecting channel is fixedly provided with an installation blocking piece, and a plurality of sets of installation holes are evenly formed in the installation blocking piece. The mounting separation blade is screwed on the circumferential side wall of the bottom of the desulfurization tower through a plurality of groups of mounting holes in the mounting separation blade; a dust scraping mechanism is installed on the upper side in the guide plate body, a driving fan is arranged on the dust scraping mechanism, a rotating shaft is fixedly arranged at the top of the driving fan, and a scraping plate is arranged on the circumferential outer wall of the end, away from the driving fan, of the rotating shaft and covers the circumferential outer wall of the guide plate body. According to the flue gas inlet flow guide plate assembly, impurities and scales covering the surface of the flow guide plate body can be scraped off through the scraping plate, the flow guide holes are prevented from being blocked by the impurities and the scales, and it is guaranteed that the flow guide plate body normally conducts flow guide operation for a long time.

The present application relates to natural gas desulfurization technical field, specifically said is a kind of petrochemical natural gas desulfurization treatment system;Including tower body and the bottom lateral communication of the tower body is provided with inlet pipe;The top of the tower body is communicated and is provided with outlet pipe;The lateral top, middle and bottom of the tower body are communicated and are provided with feed inlet, auxiliary port and discharge port respectively;The feed inlet, auxiliary port and discharge port are all covered with end cover compatible with the inner wall of tower body;The central vertical of the tower body is provided with rotating shaft;The lower end of the rotating shaft is fixedly connected with lower sleeve;The arc outer wall of the lower sleeve is rotatably and sealingly connected with lower mesh disc;The present application is matched with lower mesh disc by multistage gradient aperture middle mesh disc, realizes the size grading distribution of desulfurization particles from top to bottom, and the gap formed by uniform specification desulfurization particles prevents airflow deflection short circuit, and meanwhile, upper coarse particles can intercept lower fine particles, effectively improve desulfurization efficiency, avoid medicament loss and pipeline dust blockage.

The utility model relates to desulfurizing tower technical field discloses a kind of wet flue gas desulfurization tower, including tower body, desulfurization component and be used for the spray of the spray component to desulfurization component, tower body is equipped with air inlet and air outlet, desulfurization component is arranged in tower body, desulfurization component includes sieve plate and multiple baffle, the outer periphery of sieve plate is connected with the inner wall of tower body, multiple baffle is spacedly installed at the top of sieve plate, form pass-through smoke channel between adjacent two baffle, baffle is corrugated plate, two side walls of pass-through smoke channel respectively are equipped with a group of baffle, two groups of baffle in pass-through smoke channel are staggered arrangement in the direction of smoke flow, pass-through smoke channel is filled with filler;The utility model cooperates through serpentine pass-through smoke channel and baffle, reduce the flow speed of flue gas and treatment solution, prolong residence time, to improve the reaction length of flue gas and treatment solution, improve desulfurization efficiency.

The application discloses a limestone-gypsum wet flue gas desulfurization additive and a preparation method thereof, and relates to the technical field of flue gas desulfurization. The limestone-gypsum wet flue gas desulfurization additive comprises the following raw materials in parts by weight: 12-15 parts of inorganic metal salt, 5-6 parts of composite surfactant, 2-4 parts of organic acid, 1-2 parts of oxidation catalyst and 2-3 parts of pH regulator. The limestone-gypsum wet flue gas desulfurization additive prepared by the application can promote the dissolution of calcium carbonate and exhibits good desulfurization efficiency.

The utility model relates to industrial waste gas technical field provides an industrial waste gas desulfurization device, including desulfurizing tower, the top fixed mounting of desulfurizing tower has the flue gas outlet pipeline, the inside rear side fixed mounting of desulfurizing tower has the feed pipe, the inside left side fixed mounting of desulfurizing tower has the flue gas inlet pipeline, still include: motor, fixed mounting in the top of flue gas inlet pipeline, the bottom fixed mounting of motor has the rotating plate, the bottom left side of rotating plate is provided with the movable rod, the utility model discloses, when using, through the arrangement of scraper and shower nozzle structure, not only can effectively remove the particulate impurities in waste gas, prevent them from plugging the pipeline and equipment inside desulfurizing tower, simultaneously, the scraper can slide and scrape on the left side of filter plate, timely remove the particulate impurities on filter plate, ensure that filter plate always maintains the efficient working state, avoids the filtration efficiency decline caused by dirt accumulation, reduces manual intervention and downtime.

The application discloses an ammonia evaporation ammonia gas shunt treatment process and system based on ammonia gas fractional condensation separation, and belongs to the technical field of coke oven gas purification, and comprises the following steps: S1, ammonia gas shunt and purification: ammonia gas containing sulfur evaporated from the top of an ammonia evaporation tower is subjected to fractional condensation cooling, the temperature of a gas phase at the outlet of an ammonia fractional condenser is controlled, ammonia gas is partially condensed, condensed ammonia water rich in ammonia and incondensable ammonia gas rich in hydrogen sulfide are formed, and preliminary separation of ammonia gas and hydrogen sulfide is realized; S2, incondensable gas treatment: incondensable ammonia gas rich in hydrogen sulfide is separately led out and introduced into the middle part of a precooling tower located before a desulfurization tower, so that the incondensable ammonia gas is countercurrently contacted with circulating ammonia water sprayed in the precooling tower, hydrogen sulfide in the incondensable ammonia gas is absorbed by the circulating ammonia water, and part of ammonia gas is condensed; and S3, ammonia resource utilization: condensed ammonia water rich in ammonia obtained in the fractional condensation cooling step is not subjected to the incondensable gas treatment step and the desulfurization tower, but is at least partially directly sent to a ammonium sulfate saturator to serve as raw material for producing ammonium sulfate.

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.

This utility model relates to the field of boiler desulfurization conveying technology, specifically disclosing a boiler desulfurization conveying device based on multi-point distribution and multi-stage diameter variation synergistic optimization. The device includes a first main conveying pipe, one end of which is connected to a transmitter in a limestone compartment. This boiler desulfurization conveying device, based on multi-point distribution and multi-stage diameter variation synergistic optimization, constructs a multi-stage gradually narrowing conveying channel through conical diameter variations in the first, second, and third main conveying pipes. When limestone powder enters the conical section of the first main conveying pipe, the gradual contraction of the pipe cross-section accelerates the gas-solid two-phase flow, forming a stable jet that enters the second main conveying pipe. The flow velocity is further optimized through the conical transition section of the second main conveying pipe, and finally, the conical structure of the third main conveying pipe completes the three-stage acceleration process. This avoids limestone powder accumulation caused by a single pipe diameter and reduces pipe wear.

According to the variable-cross-section self-adaptive cyclone separator applied to the CFB boiler, the upper portion of a cyclone separator barrel is horizontally connected with an inlet horizontal flue, and the end, away from a hearth, of the inlet horizontal flue of the cyclone separator is provided with a variable-cross-section inlet structure; a center cylinder is arranged in the center of the upper portion of a cyclone separator cylinder, the center cylinder and the cylinder are of a split structure, the depth of the center cylinder inserted into the cylinder can be dynamically adjusted, and the sectional area of an outlet section of the center cylinder is adjustable. The boiler can keep extremely high material circulation amount and separation efficiency in the whole load range, the problem of overlarge resistance under high load is avoided, the energy consumption of a fan is reduced, the economical efficiency of unit operation is improved, the flexibility of the boiler is enhanced, and self-adaptive intelligent control is achieved.

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.

The utility model belongs to the technical field of desulfurizing towers, and particularly relates to an efficient desulfurizing tower which comprises a desulfurizing tower body, a flue gas pipe is mounted on one side of the desulfurizing tower body, extends into the desulfurizing tower body and extends to the position, close to the bottom end, of the desulfurizing tower body, and a foaming pipe is mounted in the flue gas pipe and located in the desulfurizing tower body. At least one water pump is installed on the outer side of the desulfurizing tower body, a water suction pipe is fixed to the input end of the water pump, the water suction pipe extends into the desulfurizing tower body and is close to the bottom end, a conveying pipe is fixed to the output end of the water pump, and the end, away from the water pump, of the conveying pipe extends into the desulfurizing tower body and is close to the top end. A plurality of rotary nozzles are mounted at the bottom of the conveying pipe and located in the desulfurization tower body, and a flue gas outlet is formed in the top of the desulfurization tower body. According to the utility model, the gas-liquid contact time is stable, the desulfurization effect is stable, the production continuity is guaranteed, and the reaction is more sufficient.

This invention discloses a method for desulfurization by reacting hydrogen sulfide and sulfur dioxide in brine. Hydrogen sulfide and sulfur dioxide are introduced into a brine solution, and a liquid-phase Claus reaction is accelerated using a stirring paddle and steam to achieve rapid sulfur preparation and separation. Using the process method and apparatus of this invention, the sulfur dioxide and hydrogen sulfide gases are vigorously stirred in the brine solution by a bladed stirring paddle, which not only increases the contact area and reaction efficiency between the gas and liquid phases, but also solves the problem of difficult separation of sulfur suspension due to the salting-out effect. Furthermore, the process flow of this invention is simple and easy to operate, and the brine in the sulfur solution can be recycled after separation, reducing operating costs.

The invention discloses a control method of a calcium-based desulfurization system for coke charging dedusting flue gas of a dry quenching furnace, and belongs to the technical field of coking flue gas purification. The method comprises the following steps: monitoring the flue gas sulfur dioxide concentration in real time, and starting a calcium spraying system in an interlocking manner when a threshold value is reached; by controlling the calcium spraying time, the arrival time (T2) of the desulfurizing agent is smaller than or equal to the flowing time (T1) of the flue gas from the monitoring point to the spraying point, so that accurate and synchronous mixing is realized; according to the real-time flue gas flow and SO2 concentration, the calcium spraying amount is dynamically controlled in an interlocking mode, and the calcium-sulfur ratio is maintained to be 1.8-2.4; intelligent ash removal control based on single-bin or total pressure difference triggering is adopted for the bag type dust collector, and ash removal is executed by staggering coke charging operation time periods of the dry quenching furnace according to set intervals. According to the invention, through cooperative intelligent control of time sequence, dosage and ash removal, the problems of desulfurization agent waste, excessive emission and unstable system operation under the intermittent fluctuation flue gas working condition of dry quenching are solved, and efficient desulfurization, resource saving and reliable system operation are realized.

The application provides a smelting method of molten steel with scrap steel in a separate ladle, which breaks through the limitation of the scrap steel adding amount in the traditional process through the operation of adding scrap steel in multiple batches in a main refining furnace and adding scrap steel in the main refining furnace and an auxiliary refining furnace after the separate ladle operation. The multiple batch operation of the main refining furnace and the arrangement of at least two furnace bodies provide more opportunities and space for the scrap steel adding; the separate ladle operation further increases the number of molten steel ladles, greatly increases the total amount of scrap steel, effectively improves the scrap steel utilization rate, and reduces the molten iron consumption.

The utility model discloses a humidifying tower suitable for a cement desulfurization production line, which comprises a humidifying tower body, a plurality of baffle plates and a plurality of gathering plates are arranged on a vertical part in the humidifying tower body, and the baffle plates and the gathering plates are used for dividing the vertical part into a plurality of reaction areas; the blocking plate is of an arc-shaped structure and is arranged at the top of the corresponding gathering plate in the vertical part, an arc-shaped blocking groove is formed in the bottom of the blocking plate, and a plurality of spraying heads are arranged in the arc-shaped blocking groove and used for blocking spraying of gathered smoke. A plurality of baffles and a plurality of gathering plates are arranged on the vertical part of the humidifying tower body, so that the baffles are arranged at the tops of the gathering plates at intervals, and flue gas gathered by the gathering plates is sprayed and atomized in a blocking manner, so that the flue gas can be fully mixed with spraying liquid; the desulfurization efficiency and the desulfurization quality of the humidifying tower on the cement flue gas are improved.

The utility model belongs to the field of desulfurization tower, concretely relates to a ceramic production waste gas treatment desulfurization tower, including the tower body, the inside upper portion of tower body is provided with the padding, is connected with the air inlet pipe that is provided on the tower body, the inside bottom of tower body is fixedly installed with submersible pump, the output of submersive pump is fixedly connected with the conveying pipe, and the conveying pipe is set as penetrating the tower body, the pipe body of conveying pipe is connected with the transition pipe, the inside of transition pipe is provided with the anti -blocking mechanism, the inside rotation of transition pipe is connected with the swivel joint. The utility model drives the rotation of the spray pipe through the clamping of the square and the connecting block by the motor, so that the spray pipe changes direction, makes the nozzle on the spray pipe face upwards, thereby backflushing the padding, avoids the effect of waste gas treatment to be affected by the padding blockage.

The invention relates to the technical field of sulfur dioxide flue gas treatment, and particularly discloses a vertical gas inlet supergravity sulfur dioxide absorption device which comprises a kettle body, a stirring assembly, a feeding assembly and a gas inlet piece, the stirring assembly comprises a stirring shaft and a driving part connected with the stirring shaft, and one end of the stirring shaft extends into the kettle body; the feeding assembly comprises a feeding pipe and material distribution discs, the material distribution discs are installed on the stirring shaft in the kettle body and distributed along the stirring shaft at intervals, the material distribution discs are connected with the feeding pipe, and a plurality of discharging ports are formed in the material distribution discs in the circumferential direction; the air inlet direction of the air inlet piece is perpendicular to the discharging direction of the material distribution disc. According to the invention, through coupling of a vertical gas inlet mode and a supergravity technology, a material liquid forms an extremely thin liquid film in a supergravity field under the action of a material distribution disc, the liquid film is cut into micron-sized liquid drops by a gas phase at the moment of flying out of the outer edge of the material distribution disc, the mass transfer process is greatly enhanced, and the desulfurization efficiency is higher than gt; and the device is small in size, low in pressure drop and not easy to block.

The utility model relates to flue gas treatment field of atmospheric pollution control industry, concretely relates to a desulfurization dust removal denitration integrated equipment. The desulfurization dust removal denitration integrated equipment includes: support separation structure, which separates desulfurization dust removal denitration integrated equipment into three layers of upper, middle and lower in vertical direction, separates into middle area and peripheral area in horizontal direction, denitration chamber is arranged in middle layer middle area, exhaust port is arranged in middle layer middle area, below denitration chamber, air inlet is arranged in lower layer middle area, below exhaust port, N desulfurization filter chambers are symmetrically arranged in middle layer peripheral area, peripheral of denitration chamber and exhaust port, S ash bucket is arranged in lower layer peripheral area, upper box gas chamber is arranged in upper layer area, and N desulfurization filter chambers of the peripheral area and denitration chamber of middle area are communicated. The utility model discloses desulfurization dust removal denitration integrated equipment, and the land area is small, and the investment is saved.

This utility model discloses a desulfurization tower with an embedded phase change heat storage device, comprising: a desulfurization tower body, a flue gas inlet at the bottom side and a flue gas outlet at the top side of the desulfurization tower body, a desulfurization slurry inlet at the top side and a desulfurization slurry outlet at the bottom side of the desulfurization tower body; a heat storage tube assembly layer is provided on the inner wall of the desulfurization tower body, the heat storage tube assembly layer is non-uniformly distributed on the inner wall of the desulfurization tower body, the heat storage tube assembly layer is filled with phase change material, the heat storage tube assembly layer absorbs and stores the heat during the flue gas desulfurization process; a heat exchange enhancement structure is provided on the outer surface of the heat storage tube assembly layer to exchange heat during the flue gas desulfurization process; a temperature control valve is provided on the outside of the desulfurization tower body, the temperature control valve is connected to the heat storage tube assembly layer, the temperature control valve is connected to a heating system, and the temperature control valve controls the heat storage and heat release of the heat storage tube assembly layer to the heating system.

The utility model relates to metallurgical industry technical field, concretely relates to a kind of heat supplement material adding system for fluidized roasting furnace, the bottom of bunker 1 is equipped with discharge gate, the discharge gate connects the feed inlet of material conveying device 3, the valve 2 is equipped at the discharge gate;The discharge port of material conveying device 3 connects one end of material conveying pipeline 8, the other end of material conveying pipeline 8 connects the feed end of material spray gun feed inclined pipe 4, the discharge end of material spray gun feed inclined pipe 4 is connected with material spray gun 5;The discharge end of material spray gun 5 is arranged in roasting furnace, the discharge end of material spray gun 5 is equipped with the material spray gun head 6, one end of material spray gun 5 away from the discharge end is connected with air pipeline 7.The utility model can prevent fine particulate material from agglomerating and blocking in pipeline, and also uniformly disperse material to boiling reaction layer in furnace, to avoid local accumulation of heat supplement material.

The utility model relates to the technical field of desulfurizing towers, and provides a desulfurizing tower inlet flue gas flow guide and uniform distribution device which comprises a flue gas pipe, a flow guide pipe, a flow equalizing pore plate I, a flow equalizing pore plate II, a separation base, a driving part, a horizontal bevel gear and a horizontal bevel gear, the flow guide pipe is fixed above the flue gas pipe, the flow guide pipe is a trumpet-shaped pipeline with a small upper part and a large lower part, the lower edge of the flow guide pipe is tightly attached to the inner wall of the desulfurizing tower, the flow guide pipe can prevent industrial flue gas from flowing along the wall, the flow equalizing pore plate I is fixedly connected to an upper outlet of the pipeline of the flow guide pipe, and a plurality of flue gas through holes are formed in the flow equalizing pore plate I; and industrial flue gas passes through the plurality of flue gas through holes. By means of the technical scheme, the problems that in the prior art, a non-uniform flow field may cause part of flue gas to flow along the wall, effective contact between a desulfurizing agent and the flue gas is reduced, and the desulfurization efficiency is affected are solved.

The invention discloses a rapid high-precision modeling optimization method and system for a multistage series centrifugal compressor. The method comprises the steps that firstly, a universal parameter and target performance database of the multistage compressor is defined; the reciprocal of the sum of squares of errors between the compressor outlet pressure / temperature predicted value and the target value serves as a fitness function, global optimization of the airflow angle is completed based on a particle swarm optimization algorithm, and the optimal airflow angle parameter is output; with mass flow conservation as a core constraint, a compressor model is rapidly established step by step, and speed decomposition of each stage, theoretical work calculation, airflow loss and thermodynamic parameter output are completed; and finally, coupling a gas storage chamber model based on mass conservation and energy conservation, verifying the precision of the model through an absolute error and a relative error, and forming an integrated modeling scheme of airflow angle optimization-multistage pneumatic modeling-gas storage chamber dynamic coupling. According to the method, deep fusion of multi-stage compressor modeling, airflow angle optimization and dynamic characteristics of the air storage chamber is achieved, and compared with traditional experience modeling, the precision is remarkably improved.

This invention relates to the field of air pollution control technology, specifically a high-temperature flue gas emission desulfurization and denitrification device, comprising a denitrification mechanism and a desulfurization mechanism. The denitrification mechanism employs a vacuum-jacketed mounting cylinder, which contains an array of denitrification arc-shaped guide holes and a combined denitrification module. The module includes a denitrification guide cylinder, an arc-shaped filter screen, and a limiting guide cylinder with oblique guide grooves, effectively expanding the catalytic area and uniformly distributing the flow. A back-blowing fan and an elastically limiting rotating guide plate are also included to achieve online vibration self-cleaning. The desulfurization mechanism introduces flue gas into the desulfurization mounting cylinder through a gradient annular guide cylinder and uniformly enlarging inlet holes from top to bottom, forming a gradient three-dimensional desulfurization. A bottom discharge drive and a spiral guide plate ensure uniform catalyst renewal. This device has a compact structure, excellent insulation and airflow organization, and solves problems such as ash accumulation and blockage, difficult maintenance, and low catalyst utilization in existing technologies, thus improving denitrification and desulfurization efficiency and continuous operation stability.

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 utility model belongs to the technical field of flue gas desulfurization, and particularly relates to a flue gas pretreatment device of a desulfurization tower, which is arranged in a flue gas inlet pipeline of the desulfurization tower, a spraying layer and a demister are sequentially arranged in the flue gas inlet pipeline along the flow direction of flue gas, and a backwashing pipe is arranged between the spraying layer and the demister. The back washing pipe is connected with a washing spray head, the washing spray head is arranged towards the demister and is used for washing the demister, the spraying layer comprises a spraying pipeline and a plurality of first spray heads, the spraying pipeline is connected with the plurality of first spray heads arranged in the flue gas inlet pipeline, and the spraying pipeline is connected with a circulating pump. According to the utility model, the flue gas is subjected to water spraying treatment in the flue gas inlet pipeline, and the demister is arranged, so that the air speed is reduced, the flue gas pressure is stabilized, large particles in the flue gas are removed, the pressure of the desulfurization tower is relieved, and the desulfurization efficiency is improved.

The application belongs to the technical field of adsorptive desulfurizer, and particularly relates to a high-strength nanometer zinc oxide composite desulfurizer and a preparation method thereof. The composite desulfurizer contains the following raw materials in parts by weight: nanometer zinc oxide / activated carbon composite material 65-70 parts, filler 15-25 parts, and binder 40-50 parts. The desulfurizer prepared by the application has high mechanical strength, high sulfur capacity and high desulfurization efficiency.

The invention relates to the technical field of corrosion control of petroleum refining equipment, in particular to a corrosion control system for a recycle hydrogen desulfurization system of a hydrogenation device, which comprises a recycle hydrogen desulfurization system connected with an amine liquid feeding system and used for injecting lean amine liquid to absorb and remove H2S in recycle hydrogen gas; the data acquisition module is used for acquiring process parameters of the recycle hydrogen desulfurization system and sending the process parameters to the data processing module; the data processing module is used for calculating a theoretical amine liquid injection rate according to the process parameters and the corrosion control indexes, and sending the theoretical amine liquid injection rate to the feedback regulation module; the feedback adjusting module is used for controlling the amine liquid feeding system to adjust the lean amine liquid injection amount of the circulating hydrogen desulfurization system in real time according to the theoretical amine liquid injection amount. The theoretical amine liquid injection amount is automatically calculated according to the process parameters and the corrosion control indexes, and the actual injection amount is continuously adjusted through closed-loop control, so that the desulfurization efficiency is improved, and the corrosion risk of the system is effectively controlled.

The utility model discloses a gypsum wet desulphurization system which comprises an absorption tower and a flue gas heat exchanger, an oxidation pond is arranged at the lower end of the absorption tower, a first material conveying pipe and a second material conveying pipe are arranged between the absorption tower and the oxidation pond, a circulating pump is arranged on the first material conveying pipe, and a plurality of spraying pipes are arranged at one end of the second material conveying pipe. An oxidation fan is arranged at the bottom of the oxidation pond through an oxygen conveying pipe, a limestone slurry silo is arranged on one side of the bottom of the oxidation pond through a third material conveying pipe and a material conveying pump, a smoke inlet pipe and a smoke exhaust pipe are arranged on the two sides of the absorption tower respectively, and one end of the smoke inlet pipe and one end of the smoke exhaust pipe are both communicated with the smoke heat exchanger. The absorption tower can integrate absorption and oxidation functions, the upper part is an absorption area, the lower part is an oxidation area, raw flue gas subjected to dust removal is in reverse contact with circulating slurry in the absorption tower, is fully absorbed and then is discharged, and meanwhile, a countercurrent air spraying tower is adopted, so that the diameter of the absorption tower is greatly reduced, parts in the tower are greatly reduced, and the scaling possibility is reduced.