CN117654244B - Desulfurization and denitration flue gas treatment equipment and application method thereof - Google Patents
Desulfurization and denitration flue gas treatment equipment and application method thereof Download PDFInfo
- Publication number
- CN117654244B CN117654244B CN202311661515.1A CN202311661515A CN117654244B CN 117654244 B CN117654244 B CN 117654244B CN 202311661515 A CN202311661515 A CN 202311661515A CN 117654244 B CN117654244 B CN 117654244B
- Authority
- CN
- China
- Prior art keywords
- desulfurization
- flue gas
- umbrella
- heat exchange
- branch
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000006477 desulfuration reaction Methods 0.000 title claims abstract description 129
- 230000023556 desulfurization Effects 0.000 title claims abstract description 129
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 title claims abstract description 95
- 239000003546 flue gas Substances 0.000 title claims abstract description 95
- 238000000034 method Methods 0.000 title claims abstract description 21
- 230000007246 mechanism Effects 0.000 claims abstract description 112
- 239000000428 dust Substances 0.000 claims abstract description 47
- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 claims abstract description 46
- 239000007789 gas Substances 0.000 claims abstract description 39
- 239000000919 ceramic Substances 0.000 claims abstract description 34
- 239000007921 spray Substances 0.000 claims abstract description 29
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 claims abstract description 26
- 235000011114 ammonium hydroxide Nutrition 0.000 claims abstract description 26
- 238000002347 injection Methods 0.000 claims abstract description 16
- 239000007924 injection Substances 0.000 claims abstract description 16
- 238000005406 washing Methods 0.000 claims abstract description 6
- 238000005259 measurement Methods 0.000 claims abstract description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 32
- 239000000243 solution Substances 0.000 claims description 12
- 239000010410 layer Substances 0.000 claims description 10
- 239000000779 smoke Substances 0.000 claims description 9
- 238000002485 combustion reaction Methods 0.000 claims description 5
- 230000009467 reduction Effects 0.000 claims description 4
- 230000009466 transformation Effects 0.000 claims description 4
- 238000007599 discharging Methods 0.000 claims description 3
- 239000002356 single layer Substances 0.000 claims description 3
- 238000005453 pelletization Methods 0.000 claims 1
- 238000001914 filtration Methods 0.000 abstract description 30
- 239000002699 waste material Substances 0.000 abstract description 6
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 20
- 238000005507 spraying Methods 0.000 description 14
- 230000008569 process Effects 0.000 description 9
- 235000019738 Limestone Nutrition 0.000 description 8
- 239000006028 limestone Substances 0.000 description 8
- 229910021529 ammonia Inorganic materials 0.000 description 7
- 239000002002 slurry Substances 0.000 description 7
- 239000002912 waste gas Substances 0.000 description 7
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 6
- 230000000903 blocking effect Effects 0.000 description 4
- 239000003054 catalyst Substances 0.000 description 4
- 239000000571 coke Substances 0.000 description 4
- 239000010440 gypsum Substances 0.000 description 4
- 229910052602 gypsum Inorganic materials 0.000 description 4
- 238000010521 absorption reaction Methods 0.000 description 3
- 230000009471 action Effects 0.000 description 3
- 229910000019 calcium carbonate Inorganic materials 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 229910000069 nitrogen hydride Inorganic materials 0.000 description 3
- 239000000376 reactant Substances 0.000 description 3
- 238000006722 reduction reaction Methods 0.000 description 3
- NLXLAEXVIDQMFP-UHFFFAOYSA-N Ammonium chloride Substances [NH4+].[Cl-] NLXLAEXVIDQMFP-UHFFFAOYSA-N 0.000 description 2
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 239000004202 carbamide Substances 0.000 description 2
- 238000010531 catalytic reduction reaction Methods 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 239000003638 chemical reducing agent Substances 0.000 description 2
- 230000009849 deactivation Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 238000013178 mathematical model Methods 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 238000001179 sorption measurement Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 230000002745 absorbent Effects 0.000 description 1
- 239000002250 absorbent Substances 0.000 description 1
- -1 amino compound Chemical class 0.000 description 1
- BIGPRXCJEDHCLP-UHFFFAOYSA-N ammonium bisulfate Chemical compound [NH4+].OS([O-])(=O)=O BIGPRXCJEDHCLP-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000007865 diluting Methods 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000003595 mist Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 125000002924 primary amino group Chemical group [H]N([H])* 0.000 description 1
- 238000000275 quality assurance Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000035484 reaction time Effects 0.000 description 1
- 238000009419 refurbishment Methods 0.000 description 1
- 238000005201 scrubbing Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
Landscapes
- Treating Waste Gases (AREA)
Abstract
The invention belongs to the field of flue gas treatment, and particularly relates to desulfurization and denitration flue gas treatment equipment and a use method thereof. The system comprises a boiler, a denitration system, a multifunctional heat exchange system, a dust removal system and a desulfurization system; the denitration system comprises a layered injection mechanism and a three-dimensional temperature sensor group; the multifunctional heat exchange system comprises a spoiler primary filtering mechanism, a ceramic secondary filtering mechanism and a heat exchange mechanism; the desulfurization system comprises a sulfur dioxide washing tower, an exhaust gas diversion sieve plate, an annular primary desulfurization mechanism and an umbrella-shaped positive connection spray head. And carrying out ammonia water injection on the flue gas through three-dimensional temperature field distribution measurement to carry out accurate denitration treatment. The problem of blockage of the heat exchange mechanism can be greatly reduced by implementing cold-heat exchange through the multifunctional heat exchange system. Flue gas after dust removal through the dust removal system enters the atmosphere through flue gas desulfurization treatment implemented by the desulfurization system, and waste adhesion on the inner wall of the desulfurization system can be effectively prevented.
Description
Technical Field
The invention belongs to the field of flue gas treatment, and particularly relates to desulfurization and denitration flue gas treatment equipment and a use method thereof.
Background
Along with the increasingly strict environmental protection emission requirements, the pollution control force of enterprises is also continuously increased, and the coke oven smoke control is also increasingly emphasized. In the production process of the coke oven, waste gas containing dust, SO2, NOx and other harmful substances can be generated, and the environment is polluted. In order to reduce the emission of harmful substances such as SO2, NOx and the like in the coke oven flue gas, SO that the coke oven flue gas meets the environmental protection requirement, and simultaneously, the atmospheric environment quality is better improved, and a plurality of advanced methods have been applied to practical projects.
The SCR denitration technology is characterized in that the catalyst is deactivated, NH3 is remained in the tail gas, SO3 reacts with excessive NH3 to generate corrosive and viscous NH4HSO4 under the aerobic condition, and the damage of tail flue equipment can be caused. And the deactivation mechanism of the SCR catalyst is complex, and different flue gas components and different SCR denitration catalyst formulas and forming processes are caused by different coal types, so that the deactivation mechanism of the SCR catalyst is different. SNCR is a selective non-catalytic reduction, a mature low cost denitration technique. The technology takes a hearth or a predecomposition furnace in the cement industry as a reactor, and sprays a reducing agent containing amino into the hearth, wherein the reducing agent reacts with NOx in flue gas to generate ammonia and water. In the denitration process by the selective non-catalytic reduction method, urea or amino compound is injected into flue gas at a higher reaction temperature (930-1090 ℃) to reduce NOx into N2. The NOX removal efficiency of the SNCR process mainly depends on the reaction temperature, the stoichiometric ratio of NH3 to NOX, the degree of mixing, the reaction time, and the like. Studies have shown that temperature control of the SNCR process is critical.
High temperature flue gas heat exchangers are typically comprised of a series of heat exchangers in parallel, each equipped with efficient heat transfer elements, capable of effecting heat exchange between gas and gas, gas and solids, liquid and gas. During the heat exchange process, the heat of the high temperature flue gas is transferred to the medium to be heated to bring it to the desired process temperature. The existing waste gas connected heat exchanger tries to block the heat exchanger due to the fact that waste gas is not filtered, and therefore the problem of shutdown stop line refurbishment is solved.
Wet desulfurization is the most widely used technology for sintering flue gas at present, limestone-gypsum method uses limestone as desulfurization absorbent, and limestone is firstly crushed and ground into powder by a crushing and grinding system and then is stirred and mixed with water to form absorption slurry. In the absorption tower, the flue gas enters from the middle and bottom parts, limestone slurry is sprayed at the top parts, SO2 in the flue gas reacts with calcium carbonate and is oxidized by blown air, and finally reactant gypsum is generated. Problems of adhesion, blockage and the like in the reactor caused by water spraying into the reactor during wet desulfurization;
The boiler desulfurization and denitrification system device with the application number 201510603646.3 is formed by directly and sequentially connecting a denitrification reactor, an air preheater, an electric dust collector, a advection type absorption tower, an electric demister and a desulfurization fan, wherein the inlet end of the denitrification reactor is directly connected with the flue gas outlet end of a boiler, and the flue gas outlet end of the desulfurization fan is directly connected with a chimney; a flue gas reheater cooling section is arranged between the air preheater and the electric dust collector, and a flue gas reheater heating section is arranged between the electric demister and the desulfurization fan. The advantage is design benefit, and is rational in infrastructure compact, and desulfurization denitration effect is outstanding, saves space, reduce cost, improves system efficiency, and denitration reactor design is ingenious reasonable, uses urea as the raw materials, saves the cost, and the effect is outstanding. However, the problems of the accurate control of the denitration temperature, the blockage of a heat exchanger, the adhesion and blockage in the reactor caused by water spraying into the reactor during desulfurization and the like can not be overcome. Therefore, the study on a set of desulfurization and denitration flue gas treatment system with accurate temperature control, denitration quality assurance and fault shutdown reduction in the heat exchange and desulfurization processes is particularly important.
Disclosure of Invention
The invention aims to realize accurate temperature control in the SNCR denitration process, reduce faults caused by wastes to equipment in the desulfurization and denitration process, and ensure the startup time of the equipment. In order to achieve the above purpose, the invention provides a desulfurization and denitration flue gas treatment device and a use method thereof, and the specific scheme is as follows: a desulfurization and denitration flue gas treatment device comprises a boiler, a denitration system, a multifunctional heat exchange system, a dust removal system and a desulfurization system.
The denitration system comprises a layered injection mechanism, a three-dimensional temperature sensor group, a pressurization meter, a system control integrated machine, a diluted ammonia water solution tank, an ammonia water tank and a clear water tank, wherein the three-dimensional temperature sensor group is fixedly arranged on the outer wall of a boiler, at least 4 groups of the three-dimensional temperature sensor group are arranged locally along the outer wall of the boiler, a self-combustion chamber is arranged upwards, the temperature sensor group is connected with the system control integrated machine through a circuit, the layered injection mechanism is fixedly arranged on the outer wall of the boiler, at least 8 layers of the layered injection mechanism extend towards the inside of the boiler, a terminal is connected with a porous spray head, the layered injection mechanism is connected with the pressurization meter through a pipeline, the pressurization meter is connected with the diluted ammonia water solution tank through a pipeline, and the diluted ammonia water solution tank is connected with the ammonia water tank and the clear water tank through a pipeline. And an ammonia concentration monitor and a liquid level sensor in the diluted ammonia solution tank are connected with the control integrated machine through lines, and an auxiliary system builds a mathematical model.
Optionally, the multifunctional heat exchange system comprises a first-stage baffle filtering mechanism, a second-stage ceramic filtering mechanism, a heat exchange mechanism, wherein the first-stage baffle filtering mechanism is fixedly arranged on the upper side of a flue gas inlet of the multifunctional heat exchange system, the second-stage ceramic filtering mechanism is fixedly arranged on the upper side of the first-stage baffle filtering mechanism, and the heat exchange mechanism is fixedly arranged on the upper side of the second-stage ceramic filtering mechanism.
Optionally, the first-stage filtering mechanism of the spoiler comprises a directional guide plate A, a follow-up guide plate A, a directional guide plate B, a follow-up guide plate B, a hinge A and a hinge B, wherein the directional guide plate A is movably connected with the follow-up guide plate A through the hinge A, and the directional guide plate B is movably connected with the follow-up guide plate B through the hinge B.
The first-stage filtering mechanism of the flow blocking plate is characterized in that an obstacle is arranged in front of the dust-containing air flow, so that the direction of the air flow is changed sharply. The dust is separated from the gas by utilizing the difference in inertial force between the dust and the gas in motion. At this point, the dust is separated out by the separation of dust particles from the airflow due to the fact that the inertial force is much greater than that of the gas. The follow-up guide plate movably connected with the hinge is added, vibration is generated under the action of air flow, and the directional guide plate is driven to vibrate.
Optionally, the ceramic secondary filtering mechanism comprises a filtering screen plate and filtering ceramic balls, the filtering screen plate is more than 3 layers, and the filtering ceramic balls are placed on the filtering screen plate 310 and correspond to holes on the filtering screen plate one by one.
The ceramic filter ball has a porous structure and a high surface area, so that the ceramic filter ball has a large surface adsorption capacity and high trapping efficiency. The holes of the filtering sieve plate are smaller than the diameter of the filtering ceramic balls.
Optionally, the desulfurization system includes sulfur dioxide scrubbing tower, waste gas water conservancy diversion sieve, annular one-level desulfurization mechanism, umbrella-type just even shower nozzle, waste gas water conservancy diversion sieve is fixed to be set up in desulfurization system flue gas import upside, annular one-level desulfurization mechanism is fixed to be set up on waste gas water conservancy diversion sieve, umbrella-type just even shower nozzle fixed set up in on the annular one-level desulfurization mechanism, umbrella-type just even shower nozzle has a plurality ofly, and a plurality of umbrella-type just even shower nozzles can realize the full coverage to waste gas water conservancy diversion sieve hole. The limestone slurry sprayed out of the umbrella-shaped forward connected spray head reacts with SO2 in the flue gas and calcium carbonate, and is oxidized by the blown air, SO that reactant gypsum is finally generated.
The diameter of the umbrella-shaped positive connection spray head is smaller than the nearest straight line distance between any two sieve holes of the exhaust gas diversion sieve plate, the arrangement height and the umbrella-shaped angle of the umbrella-shaped positive connection spray head meet the requirement that the diameter of the projection surface of the umbrella-shaped spray head to the exhaust gas diversion sieve plate is larger than the farthest straight line distance between any two sieve holes of the exhaust gas diversion sieve plate, the impact of exhaust gas spray to the umbrella-shaped spray head is prevented from influencing the service life of the spray head, meanwhile, limestone slurry sprayed by the spray head can completely cover gas sprayed by the sieve holes, and the optimal desulfurization rate is realized.
The optional positive shower nozzle that links of umbrella-type includes umbrella-type cap, water jet, shower nozzle connecting rod, the water jet set up in shower nozzle connecting rod is close to umbrella-type cap one side, the water jet is seted up and is greater than 3, and when water was spouted from the water jet, the change of direction was penetrated along umbrella-type cap internal edge and is formed umbrella-type water smoke, and umbrella-type cap can effectively prevent the adhesion discarded object of water jet, and the impact of water jet to umbrella-type cap produces vibrations in addition.
Optionally, the desulfurization system comprises a branch type secondary desulfurization mechanism, a sulfur dioxide concentration monitor and an unpowered exhaust fan. The branch type secondary desulfurization mechanism is fixedly arranged on the desulfurization system, and at least 3 groups of sulfur dioxide concentration monitors are respectively and fixedly arranged at 50CM positions of the annular primary desulfurization mechanism and each layer of branch type secondary desulfurization mechanism in the horizontal direction. When the sulfur dioxide concentration at the same level is higher than the set value of the system, the upper branch type secondary desulfurization mechanism is automatically opened through the control of the system. The unpowered exhaust fan is arranged at the lower end of a flue gas outlet of the desulfurization system, and flue gas reaching desulfurization standards is exhausted into the atmosphere through the unpowered exhaust fan.
The optional branch type secondary desulfurization mechanism includes branch type main line, branch type branch pipeline, umbrella-type anti-connection shower nozzle, bevel connection shower nozzle branch type branch pipeline includes branch type first branching, branch type main line and the branch type branch pipeline integrated into one piece welded formation that is greater than 3, umbrella-type anti-connection shower nozzle is fixed to be set up on branch type branch pipeline, bevel connection shower nozzle fixed set up in branch type first branching end, bevel connection shower nozzle self rotatable, the central line of the projection of bevel connection shower nozzle on the horizontal plane passes the angle that the centre of a circle on the horizontal plane is called bevel connection shower nozzle fixed angle with the normal that the bevel connection shower nozzle interface centre of a circle was connected is projected to the desulfurization system, bevel connection shower nozzle fixed angle is greater than 90 degrees and is less than 120 degrees.
The application method of the desulfurization and denitration flue gas treatment equipment comprises the following steps:
S1, generating flue gas from the bottom of a boiler through combustion, realizing three-dimensional temperature field distribution measurement data through a three-dimensional temperature sensor group to generate a temperature transformation three-dimensional model, automatically calculating the concentration of required ammonia water, selecting an injection layer of a layered injection mechanism, and implementing ammonia water injection to perform accurate denitration treatment. S2, a boiler flue gas outlet is connected with a flue gas inlet of the multifunctional heat exchange system, and flue gas subjected to denitration treatment enters the multifunctional heat exchange system, is dedusted by a first-stage filtering mechanism of a spoiler and a second-stage filtering mechanism of a ceramic, and enters the heat exchange mechanism to implement cold-heat exchange. S3, a smoke outlet of the multifunctional heat exchange system is connected with a smoke inlet of the dust removal system, and smoke subjected to cold-heat exchange and temperature reduction enters the dust removal system to remove dust.
S4, a flue gas outlet of the dust removal system is connected with a flue gas inlet of the desulfurization system, and flue gas after dust removal enters the desulfurization system and is subjected to flue gas desulfurization treatment through the annular primary desulfurization mechanism and the branch type secondary desulfurization mechanism.
S5, discharging the flue gas qualified in desulfurization treatment to the atmosphere through a flue gas outlet of a desulfurization system and discharging the flue gas into a sulfur dioxide scrubber.
Compared with the prior art, the invention has the beneficial effects that:
the three-dimensional temperature field distribution measurement data generate a temperature transformation three-dimensional model, the required ammonia water concentration is automatically calculated, the spraying layers of the layered spraying mechanism are selected, ammonia water spraying is implemented, accurate denitration temperature feedback is realized, the denitration rate is improved, and ammonia escape is prevented.
The flue gas after dust removal by the first-stage filtering mechanism and the second-stage filtering mechanism of the flow blocking plate basically does not produce impurities such as dust and the like after entering the heat exchange mechanism, and the blocking problem of the heat exchange mechanism is greatly reduced.
The follow-up guide plates movably connected with the hinges are added, vibration is generated under the action of air flow, the directional guide plates are driven to vibrate, and dust accumulation of the directional guide plates can be effectively prevented.
The diameter of the umbrella-shaped positive connection nozzle is smaller than the nearest linear distance between any two sieve holes of the exhaust gas diversion sieve plate, the arrangement height and the angle of the umbrella-shaped positive connection nozzle meet the requirement that the diameter of the projection surface of the umbrella-shaped nozzle to the exhaust gas diversion sieve plate is larger than the farthest linear distance between any two sieve holes of the exhaust gas diversion sieve plate, the impact of exhaust gas spraying on the umbrella-shaped nozzle is prevented from influencing the service life of the nozzle, and meanwhile, the limestone slurry sprayed by the nozzle can completely cover the gas sprayed by the sieve holes, so that the optimal desulfurization rate is realized.
The umbrella-shaped cap can effectively prevent the water jet from adhering to waste, and in addition, the impact of the water jet on the umbrella-shaped cap can generate vibration, so that the waste can be effectively prevented from adhering to the umbrella-shaped cap.
When the sulfur dioxide concentration of the same level is higher than the set value of the system, the upper branch type secondary desulfurization mechanism is automatically opened through system control, so that the use amount of the solution can be reduced and the desulfurization cost can be reduced on the premise that the desulfurization rate reaches the standard.
Through setting up the bevel connection shower nozzle and to its adjustment of angle, when implementing desulfurization, can realize the real-time washing of desulfurization system inner wall, the effectual adhesion discarded object on preventing desulfurization system inner wall.
Drawings
FIG. 1 is a schematic perspective view of a desulfurization and denitration flue gas treatment device;
FIG. 2 is a schematic perspective view of a boiler;
FIG. 3 is a partially enlarged schematic perspective view of a denitration system;
FIG. 4 is a schematic view of the interior of the dust removal system in section;
FIG. 5 is an enlarged partial cut-away view of the interior of the dust removal system;
FIG. 6 is a schematic view of the internal cutaway of the desulfurization system;
FIG. 7 is a schematic diagram of a layout of a circular primary desulfurization mechanism;
FIG. 8 is a schematic diagram of a branch type secondary desulfurization mechanism layout;
FIG. 9 is a schematic perspective view of an umbrella-shaped forward-connection nozzle and an umbrella-shaped reverse-connection nozzle;
FIG. 10 is a schematic perspective view of a branch type secondary desulfurization mechanism;
In the figure: 1. a boiler; 1101. a boiler flue gas outlet; 2. a denitration system; 201. a layered injection mechanism; 202. a three-dimensional temperature sensor group; 203. a pressurizing gauge; 204. the system control integrated machine; 205. diluting an ammonia water solution tank; 206. an ammonia water tank; 207. a clean water tank; 3. a multi-functional heat exchange system; 301. a first-stage filtering mechanism of the spoiler; 302. a ceramic secondary filter mechanism; 303. a heat exchange mechanism; 304. a directional deflector A; 305. a follow-up guide plate A; 306. a directional deflector B; 307. a follow-up guide plate B; 308. a hinge A; 309. a hinge B; 310. filtering the sieve plate; 311. filtering ceramic balls; 3101. a smoke inlet of the multifunctional heat exchange system; 3102. a flue gas outlet of the multifunctional heat exchange system; 4. a dust removal system; 4101. a flue gas inlet of the dust removal system; 4102. a flue gas outlet of the dust removal system; 5. a desulfurization system; 501. a sulfur dioxide scrubber; 502. exhaust gas diversion sieve plate; 503. a ring-shaped primary desulfurization mechanism; 504. umbrella-shaped positive connection spray head; 505. a branch type secondary desulfurization mechanism; 506. umbrella-shaped reverse connection spray head; 507. sulfur dioxide concentration monitor; 508. an unpowered exhaust fan; 509. a bevel nozzle; 5101. a flue gas inlet of the desulfurization system; 5102. a flue gas outlet of the desulfurization system; 5103. a vent hole A of the flow guide sieve plate; 5104. a flow guide sieve plate vent hole B; 5105. a vent hole C of the flow guide sieve plate; 5106. a flow guide sieve plate vent hole D; 5107. an umbrella-shaped cap; 5108. a water jet; 5109. a spray head connecting rod; 5110. a crotch-shaped main pipeline; 5111. crotch type branch pipelines; 5112. a crotch-type first shunt; 5113. the angle of the bevel nozzle is fixed.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Example 1:
Referring to fig. 1-3, a desulfurization and denitration flue gas treatment device comprises a boiler, a denitration system, a multifunctional heat exchange system, a dust removal system and a desulfurization system.
The denitration system comprises a layered spraying mechanism, a three-dimensional temperature sensor group, a pressurizing meter, a system control integrated machine, a diluted ammonia water solution tank, an ammonia water tank and a clear water tank, wherein the three-dimensional temperature sensor group is fixedly arranged on the outer wall of a boiler, at least 4 groups of the three-dimensional temperature sensor group are arranged locally along the outer wall of the boiler, a self-combustion chamber is arranged upwards, the temperature sensor group 202 is connected with the system control integrated machine 204 through a circuit, the layered spraying mechanism 201 is fixedly arranged on the outer wall of the boiler, a single layer of the layered spraying mechanism extends towards the inside of the boiler 1 at least 8 ways, a terminal is connected with a porous spray head, the layered spraying mechanism 201 is connected with the pressurizing meter 203 through a pipeline, the pressurizing meter 203 is connected with the diluted ammonia water solution tank 205 through a pipeline, and the diluted ammonia water solution tank 205 is connected with the ammonia water tank 206 and the clear water tank 207 through a pipeline. And an ammonia concentration monitor and a liquid level sensor in the diluted ammonia solution tank are connected with the control integrated machine through lines, and an auxiliary system builds a mathematical model. Realizes accurate denitration temperature feedback, improves the denitration rate, and prevents ammonia escape.
In some embodiments, the multifunctional heat exchange system 3 described with reference to fig. 4 comprises a first-stage baffle filter mechanism 301, a second-stage ceramic filter mechanism 302, and a heat exchange mechanism 303, wherein the first-stage baffle filter mechanism 301 is fixedly arranged on the upper side of the flue gas inlet of the multifunctional heat exchange system, the second-stage ceramic filter mechanism 302 is fixedly arranged on the upper side of the first-stage baffle filter mechanism 301, and the heat exchange mechanism 303 is fixedly arranged on the upper side of the second-stage ceramic filter mechanism 302. The flue gas after dust removal by the first-stage baffle filter mechanism 301 and the second-stage ceramic filter mechanism 302 enters the heat exchange mechanism 303, and impurities such as dust are not generated basically, so that the blocking problem of the heat exchange mechanism is greatly reduced.
In some embodiments, the first-stage baffle filter mechanism 301 described with reference to fig. 5 includes a directional baffle a304, a follow-up baffle a305, a directional baffle B306, a follow-up baffle B307, a hinge a308, a hinge B309, wherein the directional baffle a304 is movably connected with the follow-up baffle a305 through the hinge a308, and the directional baffle B306 is movably connected with the follow-up baffle B307 through the hinge B309.
The first-stage baffle filter 301 is a device that provides an obstacle in front of the dust-containing airflow to change the direction of the airflow sharply. The dust is separated from the gas by utilizing the difference in inertial force between the dust and the gas in motion. At this time, the dust is separated out of the air flow due to the fact that the inertia force of the dust is much larger than that of the air, and the purified air is discharged after the direction of the purified air is changed sharply. The follow-up guide plates movably connected with the hinges are added, vibration is generated under the action of air flow, the directional guide plates are driven to vibrate, and dust accumulation of the directional guide plates can be effectively prevented.
In some embodiments, the ceramic secondary filter mechanism 302 described with reference to fig. 5 comprises a filter screen 310 and ceramic filter balls 311, wherein the filter screen 310 has more than 3 layers, and the ceramic filter balls 311 are placed on the filter screen 310 and are in one-to-one correspondence with holes on the filter screen 310.
The ceramic filter balls 311 have a porous structure and a high surface area, so that the ceramic filter balls have a large surface adsorption capacity and a high trapping efficiency. As the particulate-containing gas passes through the filter ceramic balls 311, the particulate is trapped in the pores of the ball surface.
The holes of the filtering sieve plate 310 are smaller than the diameter of the filtering ceramic balls 311, so that the filtering ceramic balls 311 are prevented from falling, and the amount of particles is greatly reduced by the flue gas after the dust removal of the filtering ceramic balls 311.
In some embodiments, referring to fig. 6, the desulfurization system 5 includes a sulfur dioxide scrubber 501, an exhaust gas guiding screen plate 502, an annular primary desulfurization mechanism 503, and an umbrella-shaped front-connected nozzle 504, where the exhaust gas guiding screen plate 502 is fixedly disposed on the upper side of the flue gas inlet 5101 of the desulfurization system, the annular primary desulfurization mechanism 503 is fixedly disposed on the exhaust gas guiding screen plate 502, the umbrella-shaped front-connected nozzle 504 is fixedly disposed on the annular primary desulfurization mechanism 503, and the umbrella-shaped front-connected nozzle 504 has a plurality of umbrella-shaped front-connected nozzles 504, so that the holes of the exhaust gas guiding screen plate 502 can be fully covered by the plurality of umbrella-shaped front-connected nozzles 504. Limestone slurry sprayed out of the umbrella-shaped forward nozzle 504 reacts with SO2 in the flue gas and calcium carbonate, and is oxidized by the blown air, SO that reactant gypsum is finally generated.
In some embodiments, referring to fig. 7, the umbrella-shaped positive connection nozzle 504 has an umbrella-shaped diameter smaller than the nearest straight line distance between any two holes of the exhaust gas guiding screen plate 502, and the arrangement height and the umbrella-shaped angle of the umbrella-shaped positive connection nozzle satisfy that the diameter of the projection surface of the umbrella-shaped nozzle to the exhaust gas guiding screen plate 502 is larger than the farthest straight line distance between any two holes of the exhaust gas guiding screen plate 502, so as to prevent the impact of exhaust gas spraying on the umbrella-shaped nozzle from affecting the service life of the nozzle, and simultaneously, can satisfy that limestone slurry sprayed by the nozzle completely covers the gas sprayed by the holes, thereby realizing the optimal desulfurization rate.
In some embodiments, referring to fig. 8, the umbrella-shaped forward-connected spray head comprises an umbrella-shaped cap 5107, a spray nozzle 5108 and a spray nozzle connecting rod 5109, the spray nozzle 5108 is arranged on one side of the spray nozzle connecting rod 5109 close to the umbrella-shaped cap 5107, the number of the spray nozzles 5108 is more than 3, when water is sprayed from the spray nozzle, the direction of the water is changed along the inner edge of the umbrella-shaped cap to form umbrella-shaped water mist, the umbrella-shaped cap 5107 can effectively prevent the spray nozzle 5108 from adhering to waste, in addition, the impact of the spray nozzle on the umbrella-shaped cap generates vibration, and the adhesion of waste on the umbrella-shaped cap can be effectively prevented.
In some embodiments, the desulfurization system 5 described with reference to fig. 6 includes a fork-type secondary desulfurization mechanism 505, a sulfur dioxide concentration monitor 507, and an unpowered exhaust fan 508. The branch type secondary desulfurization mechanism 505 is fixedly arranged on the desulfurization system 5, and at least 3 groups of sulfur dioxide concentration monitors 507 are respectively and fixedly arranged at the annular primary desulfurization mechanism 503 and the horizontal upward 50CM positions of the branch type secondary desulfurization mechanism 505. When the sulfur dioxide concentration of the same level is higher than the set value of the system, the upper branch type secondary desulfurization mechanism 505 is automatically opened through system control, so that the use amount of the solution can be reduced and the desulfurization cost can be reduced on the premise that the desulfurization rate reaches the standard. The unpowered exhaust fan 508 is arranged at the lower end of the flue gas outlet 5102 of the desulfurization system, and flue gas with desulfurization reaching standards is exhausted into the atmosphere through the unpowered exhaust fan 508.
In some embodiments, referring to fig. 9-10, the branch-type secondary desulfurization mechanism 505 includes a branch-type main pipeline 5110, a branch-type branch pipeline 5111, an umbrella-shaped reverse connection nozzle 506, a bevel nozzle 509, where the branch-type branch pipeline 5111 includes a branch-type first branch 5112, the branch-type main pipeline 5110 and more than 3 branch-type branch pipelines 5111 are integrally welded and formed, the umbrella-shaped reverse connection nozzle 506 is fixedly arranged on the branch-type branch pipeline 5111, the bevel nozzle 509 is fixedly arranged at the end of the branch-type first branch 5112, the bevel nozzle 509 is rotatable, and an angle between a center line of a projection of the bevel nozzle 509 on a horizontal plane and a normal line connecting with a center of a circle projected on the horizontal plane through the desulfurization system 5 and an interface of the bevel nozzle 509 is referred to as a bevel nozzle fixing angle 5113, and the bevel nozzle fixing angle 5113 is greater than 90 degrees and less than 120 degrees. Through setting up bevel connection shower nozzle 509 and to its adjustment of angle, when implementing desulfurization, can realize the real-time washing to desulfurization system 5 inner wall, the effectual adhesion discarded object on preventing desulfurization system 5 inner wall.
The application method of the desulfurization and denitration flue gas treatment equipment comprises the following steps:
S1, flue gas is generated by burning the bottom of the boiler 1, a three-dimensional temperature sensor set 202 is used for realizing three-dimensional temperature field distribution measurement data to generate a temperature transformation three-dimensional model, the required ammonia concentration is automatically calculated, the spraying layers of the layered spraying mechanism 201 are selected, and ammonia spraying is implemented to perform accurate denitration treatment.
S2, a boiler flue gas outlet 1101 is connected with a flue gas inlet 3101 of the multifunctional heat exchange system, and flue gas subjected to denitration treatment enters the multifunctional heat exchange system 3, passes through a spoiler primary filter mechanism 301 and a ceramic secondary filter mechanism 302 in sequence, and enters the heat exchange mechanism 303 to implement cold-heat exchange.
S3, a flue gas outlet 3102 of the multifunctional heat exchange system is connected with a flue gas inlet 4101 of the dust removal system, and flue gas subjected to cold-heat exchange and temperature reduction enters a dust removal system 4 for flue gas dust removal.
S4, a flue gas outlet 4102 of the dust removal system is connected with a flue gas inlet 5101 of the desulfurization system, the flue gas after dust removal enters a desulfurization system 5, and flue gas desulfurization treatment is implemented through the annular primary desulfurization mechanism 503 and the branch type secondary desulfurization mechanism 505.
S5, the flue gas qualified in desulfurization treatment is discharged out of the sulfur dioxide washing tower 501 through a flue gas outlet 5102 of the desulfurization system and enters the atmosphere.
The preferred embodiments of the invention disclosed above are intended only to assist in the explanation of the invention. The preferred embodiments are not exhaustive or to limit the invention to the precise form disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best understand and utilize the invention. The invention is limited only by the claims and the full scope and equivalents thereof.
Claims (8)
1. The utility model provides a desulfurization denitration flue gas treatment facility, includes boiler (1), denitration system (2), multi-functional heat exchange system (3), dust pelletizing system (4), desulfurization system (5), its characterized in that:
The denitration system (2) comprises a layered injection mechanism (201), a three-dimensional temperature sensor group (202), a pressurizing meter (203), a system control integrated machine (204), a diluted ammonia water solution tank (205), an ammonia water tank (206) and a clear water tank (207), wherein the three-dimensional temperature sensor group (202) is fixedly arranged on the outer wall of the boiler (1), at least 4 groups are arranged along the local area of the outer wall of the boiler, a combustion chamber is upwards arranged, the temperature sensor group (202) is connected with the system control integrated machine (204) through a circuit, the layered injection mechanism (201) is fixedly arranged on the outer wall of the boiler, a single layer is at least 8 ways of the single layer extends towards the inside of the boiler (1), a terminal is connected with a porous spray head, the layered injection mechanism (201) is connected with the pressurizing meter (203) through a pipeline, the pressurizing meter (203) is connected with the diluted ammonia water solution tank (205) through a pipeline, and the diluted ammonia water solution tank (205) is connected with the ammonia water tank (206) and the clear water tank (207) through a pipeline;
The desulfurization system (5) comprises a sulfur dioxide washing tower (501), an exhaust gas guide screen plate (502), an annular primary desulfurization mechanism (503) and umbrella-shaped positive connection spray heads (504), wherein the exhaust gas guide screen plate (502) is fixedly arranged on the upper side of a flue gas inlet (5101) of the desulfurization system, the annular primary desulfurization mechanism (503) is fixedly arranged on the exhaust gas guide screen plate (502), the umbrella-shaped positive connection spray heads (504) are fixedly arranged on the annular primary desulfurization mechanism (503), a plurality of umbrella-shaped positive connection spray heads (504) are arranged, and the umbrella-shaped positive connection spray heads (504) can realize full coverage of holes of the exhaust gas guide screen plate (502);
The desulfurization system (5) comprises a branch type secondary desulfurization mechanism (505), sulfur dioxide concentration monitors (507) and unpowered exhaust fans (508), wherein the branch type secondary desulfurization mechanism (505) is fixedly arranged on the desulfurization system (5), at least 3 groups of sulfur dioxide concentration monitors (507) are fixedly arranged at the annular primary desulfurization mechanism (503) and the upward 50CM of each layer of branch type secondary desulfurization mechanism (505) respectively, and the unpowered exhaust fans (508) are arranged at the lower end of a flue gas outlet (5102) of the desulfurization system.
2. The desulfurization and denitration flue gas treatment device according to claim 1, wherein the multifunctional heat exchange system (3) comprises a first-stage baffle filter mechanism (301), a second-stage ceramic filter mechanism (302) and a heat exchange mechanism (303), the first-stage baffle filter mechanism (301) is fixedly arranged on the upper side of a flue gas inlet of the multifunctional heat exchange system, the second-stage ceramic filter mechanism (302) is fixedly arranged on the upper side of the first-stage baffle filter mechanism (301), and the heat exchange mechanism (303) is fixedly arranged on the upper side of the second-stage ceramic filter mechanism (302).
3. The desulfurization and denitration flue gas treatment device according to claim 2, wherein the first-stage baffle filter mechanism (301) comprises a directional baffle a (304), a follow-up baffle a (305), a directional baffle B (306), a follow-up baffle B (307), a hinge a (308) and a hinge B (309), the directional baffle a (304) is movably connected with the follow-up baffle a (305) through the hinge a (308), and the directional baffle B (306) is movably connected with the follow-up baffle B (307) through the hinge B (309).
4. A desulfurization and denitrification flue gas treatment apparatus according to claim 3, wherein the ceramic secondary filter mechanism (302) comprises a filter screen plate (310) and filter ceramic balls (311), the filter screen plate (310) is more than 3 layers, and the filter ceramic balls (311) are placed on the filter screen plate (310) and are in one-to-one correspondence with holes on the filter screen plate (310).
5. The desulfurization and denitration flue gas treatment device according to claim 4, wherein the umbrella-shaped positive connection nozzle (504) has an umbrella-shaped diameter smaller than the nearest straight line distance between any two sieve holes of the exhaust gas diversion sieve plate (502), and the arrangement height and the umbrella-shaped angle of the umbrella-shaped positive connection nozzle satisfy that the diameter of the projection surface of the umbrella-shaped nozzle to the exhaust gas diversion sieve plate (502) is larger than the farthest straight line distance between any two sieve holes of the exhaust gas diversion sieve plate (502).
6. The desulfurization and denitration flue gas treatment device according to claim 5, wherein the umbrella-shaped positive connection nozzle comprises umbrella-shaped caps (5107), water nozzles (5108) and nozzle connecting rods (5109), the water nozzles (5108) are arranged on one side, close to the umbrella-shaped caps (5107), of the nozzle connecting rods (5109), and the number of the water nozzles (5108) is more than 3.
7. The desulfurization and denitration flue gas treatment device according to claim 6, wherein the branch-type secondary desulfurization mechanism (505) comprises a branch-type main pipeline (5110), a branch-type branch pipeline (5111), an umbrella-shaped reverse connection nozzle (506) and a bevel nozzle (509), the branch-type branch pipeline (5111) comprises branch-type first branches (5112), the branch-type main pipeline (5110) and the branch-type branch pipelines (5111) which are larger than 3 are integrally welded and formed, the umbrella-shaped reverse connection nozzle (506) is fixedly arranged on the branch-type branch pipeline (5111), the bevel nozzle (509) is fixedly arranged at the tail end of the branch-type first branches (5112), the bevel nozzle (509) is rotatable, the angle between the projected center line of the bevel nozzle (509) on a horizontal plane and the interface between the center line of a circle projected on the horizontal plane through the desulfurization system (5) and the bevel nozzle (509) is equal to be the bevel nozzle (5113), and the angle between the projected center line and the center line of the circle is equal to be the bevel nozzle (509) is fixed at a small angle and is equal to or greater than the bevel nozzle (5113).
8. The method of using a desulfurization and denitration flue gas treatment device according to claim 7, comprising the steps of:
s1, generating flue gas from the bottom of a boiler (1) through combustion, realizing three-dimensional temperature field distribution measurement data through a three-dimensional temperature sensor group (202) to generate a temperature transformation three-dimensional model, automatically calculating the concentration of required ammonia water, selecting an injection layer of a layered injection mechanism (201), and implementing ammonia water injection to perform accurate denitration treatment;
s2, a boiler flue gas outlet (1101) is connected with a flue gas inlet (3101) of the multifunctional heat exchange system, and flue gas subjected to denitration treatment enters the multifunctional heat exchange system (3) to be subjected to cold-heat exchange after passing through a spoiler primary filter mechanism (301) and a ceramic secondary filter mechanism (302) to remove dust;
s3, a smoke outlet (3102) of the multifunctional heat exchange system is connected with a smoke inlet (4101) of the dust removal system, and smoke subjected to cold-heat exchange and temperature reduction enters a dust removal system (4) to remove dust;
S4, a flue gas outlet (4102) of the dust removal system is connected with a flue gas inlet (5101) of the desulfurization system, the flue gas after dust removal enters the desulfurization system (5), and flue gas desulfurization treatment is implemented through the annular primary desulfurization mechanism (503) and the branch type secondary desulfurization mechanism (505);
s5, discharging the flue gas qualified in desulfurization treatment out of the sulfur dioxide washing tower (501) through a flue gas outlet (5102) of the desulfurization system and entering the atmosphere.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311661515.1A CN117654244B (en) | 2023-12-06 | 2023-12-06 | Desulfurization and denitration flue gas treatment equipment and application method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311661515.1A CN117654244B (en) | 2023-12-06 | 2023-12-06 | Desulfurization and denitration flue gas treatment equipment and application method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN117654244A CN117654244A (en) | 2024-03-08 |
| CN117654244B true CN117654244B (en) | 2024-04-30 |
Family
ID=90069391
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311661515.1A Active CN117654244B (en) | 2023-12-06 | 2023-12-06 | Desulfurization and denitration flue gas treatment equipment and application method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117654244B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2822751Y (en) * | 2005-06-09 | 2006-10-04 | 昆明理工大学 | Corrosion-resistant dust-removing type desulphurization tower |
| CN111482086A (en) * | 2020-04-10 | 2020-08-04 | 马键 | Boiler flue gas cooperative treatment environmental protection equipment and treatment process |
| CN214437948U (en) * | 2020-12-03 | 2021-10-22 | 华能洋浦热电有限公司 | Denitration desulfurization processing system of flue gas of thermal power plant |
| CN114659131A (en) * | 2022-04-13 | 2022-06-24 | 江西黑猫炭黑股份有限公司 | Desulfurization, denitrification and dust removal system and method for carbon black tail gas boiler |
| CN116764377A (en) * | 2022-05-30 | 2023-09-19 | 北京龙源环保工程有限公司 | Ultralow emission treatment system and method for tail gas of oil-fired boiler |
-
2023
- 2023-12-06 CN CN202311661515.1A patent/CN117654244B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2822751Y (en) * | 2005-06-09 | 2006-10-04 | 昆明理工大学 | Corrosion-resistant dust-removing type desulphurization tower |
| CN111482086A (en) * | 2020-04-10 | 2020-08-04 | 马键 | Boiler flue gas cooperative treatment environmental protection equipment and treatment process |
| CN214437948U (en) * | 2020-12-03 | 2021-10-22 | 华能洋浦热电有限公司 | Denitration desulfurization processing system of flue gas of thermal power plant |
| CN114659131A (en) * | 2022-04-13 | 2022-06-24 | 江西黑猫炭黑股份有限公司 | Desulfurization, denitrification and dust removal system and method for carbon black tail gas boiler |
| CN116764377A (en) * | 2022-05-30 | 2023-09-19 | 北京龙源环保工程有限公司 | Ultralow emission treatment system and method for tail gas of oil-fired boiler |
Also Published As
| Publication number | Publication date |
|---|---|
| CN117654244A (en) | 2024-03-08 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104941423B (en) | A kind of regeneration fume from catalytic cracking ammonia process of desulfurization denitration dust collecting method and device | |
| CN103406006A (en) | SCR (Selective Catalytic Reduction) denitration device for NOx control of rotary cement kiln | |
| CN203494378U (en) | SCR (Selective Catalytic Reduction) denitration device for controlling NOx of rotary cement kiln | |
| CN201807247U (en) | Flue gas denitration device with gravitational setting pre-dedusting and high effective flue gas rectifying functions | |
| WO2005028082A1 (en) | A dry flue gas cleaning process and its system for simultaneously desulfurization and denitrating | |
| CN203764106U (en) | Flue gas denitrification device implemented by combining SNCR (selective non-catalytic reduction)-ozone oxidation with wet absorption | |
| CN201840979U (en) | Smoke gas comprehensive treatment system | |
| CN108079785B (en) | Double-moving-bed reactor and application and treatment method thereof in flue gas dedusting and denitration integrated device | |
| CN103768903A (en) | Regeneration flue gas denitration process for FCC apparatus | |
| CN103736381B (en) | Dust removal device and dust removal method for sintering flue gas by shunted and graded desulfurization | |
| CN206642490U (en) | Low temperature SCR denitration cooperates with dust arrester in a kind of industrial smoke | |
| WO2018120052A1 (en) | Two-section flue gas purification system of garbage incinerator | |
| CN202942800U (en) | Desulfurization and denitrification combined system for sintering flue gas | |
| CN104190233B (en) | A kind of flue gas undershoot jetting type desulfurizer | |
| CN201735331U (en) | Waste gas desulfurization device | |
| CN103657367A (en) | Device and process for changing one-tower calcium desulphurization to double-tower ammonia desulphurization | |
| CN108561893B (en) | Industrial boiler flue gas multi-pollutant cooperative control device and process flow thereof | |
| CN203916431U (en) | A kind of gaseous oxidation is in conjunction with the flue gas combined desulfurization and denitration device of wet absorption | |
| CN201889155U (en) | Removal device for sulfur dioxide in smoke | |
| CN117654244B (en) | Desulfurization and denitration flue gas treatment equipment and application method thereof | |
| CN108722143B (en) | Dry purification device and process capable of realizing ultralow emission of flue gas | |
| CN112138542A (en) | High-temperature flue gas dedusting, denitration and desulfurization system and method | |
| CN107029531A (en) | The desulfurization of industrial smoke, dedusting denitrification integral handling process | |
| CN108114591B (en) | Low-temperature flue gas treatment method | |
| CN215138343U (en) | Dry-wet combined desulfurization and dust removal system for waste gas generated by brick making by blending and burning sludge |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |