CN108771960B - Ultralow emission device of boiler flue gas - Google Patents
Ultralow emission device of boiler flue gas Download PDFInfo
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- CN108771960B CN108771960B CN201810892702.3A CN201810892702A CN108771960B CN 108771960 B CN108771960 B CN 108771960B CN 201810892702 A CN201810892702 A CN 201810892702A CN 108771960 B CN108771960 B CN 108771960B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/77—Liquid phase processes
- B01D53/78—Liquid phase processes with gas-liquid contact
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D50/00—Combinations of methods or devices for separating particles from gases or vapours
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/46—Removing components of defined structure
- B01D53/48—Sulfur compounds
- B01D53/50—Sulfur oxides
- B01D53/501—Sulfur oxides by treating the gases with a solution or a suspension of an alkali or earth-alkali or ammonium compound
- B01D53/502—Sulfur oxides by treating the gases with a solution or a suspension of an alkali or earth-alkali or ammonium compound characterised by a specific solution or suspension
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/96—Regeneration, reactivation or recycling of reactants
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01C—AMMONIA; CYANOGEN; COMPOUNDS THEREOF
- C01C1/00—Ammonia; Compounds thereof
- C01C1/24—Sulfates of ammonium
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2258/00—Sources of waste gases
- B01D2258/02—Other waste gases
- B01D2258/0283—Flue gases
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- Life Sciences & Earth Sciences (AREA)
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- Inorganic Chemistry (AREA)
- Treating Waste Gases (AREA)
Abstract
The invention discloses an ultralow emission device for boiler flue gas, which comprises a desulfurizing tower, wherein an ultralow emission wet electric dust collector is arranged on the desulfurizing tower, a demister is arranged at the lower end of the ultralow emission wet electric dust collector, a spraying device and a stirring device are arranged at the lower end of the demister, a process water device is arranged at one side of the desulfurizing tower, two first connecting pipes are fixed at one end of the process water device, and an ammonia water preparation device is fixed at one end of one first connecting pipe. The invention realizes the function of fully mixing the absorbent, is convenient for fully reacting with sulfur dioxide in the flue gas, realizes that the atomized absorbent covers the inside of the desulfurizing tower, ensures the full contact between gas and liquid, improves the absorption efficiency of sulfur dioxide, improves the desulfurizing efficiency, realizes the reduction of the concentration of outlet dust, the concentration of nitrogen oxides and the concentration of sulfur dioxide, and is convenient for reaching the national emission standard.
Description
Technical Field
The invention relates to the technical field of flue gas emission, in particular to an ultralow emission device for boiler flue gas.
Background
Smoke is a mixture of gas and smoke dust, and is a main cause of pollution to the atmosphere of residential areas. The components of the flue gas are complex, the gas comprises water vapor, sulfur dioxide, nitrogen, oxygen, carbon monoxide, carbon dioxide, hydrocarbon, oxynitride and the like, and the smoke dust comprises ash of fuel, coal particles, oil drops, pyrolysis products and the like, so that the pollution of the flue gas to the environment is the composite pollution of various poisons. The harm of the smoke dust to the human body is related to the size of particles, the harm to the human body is more fly ash with the diameter smaller than 10um, especially the harm of the fly ash with the diameter of 1-2.5um is the largest, the pollution of the smoke dust to the air is closely related to weather conditions, the wind, the atmospheric stability, the turbulence and the like are closely related to the atmospheric pollution condition, and in addition, the pollution of photochemistry and biochemistry to the smoke gas is also affected to a certain extent.
The existing ultralow emission device of boiler flue gas can not fully mix the absorbent, the desulfurization efficiency is reduced, and the existing spraying device can not cover the inside of the desulfurization tower, so that partial flue gas can not be desulfurized, the contact area between gas and liquid is reduced, the absorption efficiency of sulfur dioxide is reduced, the sufficient desulfurization can not be realized, and the existing ultralow emission device of boiler flue gas can not reduce the concentration of outlet dust, the concentration of nitrogen oxides and the concentration of sulfur dioxide at the same time, and can not reach the ultralow emission index.
Disclosure of Invention
The invention aims to solve the defects in the prior art and provides an ultralow emission device for boiler flue gas.
In order to achieve the above purpose, the present invention adopts the following technical scheme:
the utility model provides an ultralow emission device of boiler flue gas, includes the desulfurizing tower, be equipped with ultralow emission wet electric precipitation device on the desulfurizing tower, ultralow emission wet electric precipitation device's lower extreme is equipped with defroster, defroster's lower extreme is equipped with spray set and agitating unit, one side of desulfurizing tower is equipped with the process water device, the one end of process water device is fixed with two first connecting pipes, and one end of one of them first connecting pipe is fixed with aqueous ammonia preparation facilities, the one end of aqueous ammonia preparation facilities is fixed with the second connecting pipe, the one end of second connecting pipe is fixed in agitating unit's one end, and the one end of another first connecting pipe is fixed in defroster's one end, one side lower extreme of desulfurizing tower is connected with filter equipment, the desulfurizing tower opposite side is connected with oxidation unit, be connected with ammonium sulfate separator on the oxidation unit, be connected with ammonium sulfate dry packaging device on the ammonium sulfate separator.
Preferably, spray set is including setting up the reaction tank in desulfurizing tower one side, circulating water pump is installed to the upper end of reaction tank, circulating water pump's one end is fixed with the third water pipe, the equidistant a plurality of mounting that is fixed with in a week of desulfurizing tower, the one end of mounting is fixed with solid fixed ring, and gu fixed ring with the one end is a set of, all is fixed with annular water pipe in the solid fixed ring of two sets of, and one side of two annular water pipes is all fixed on the third water pipe, the a week of desulfurizing tower is all run through and is equipped with the sleeve pipe, and a plurality of sleeve pipes of same one end are a set of, and wherein a set of intraductal all runs through and is equipped with first water pipe, and another intraductal all runs through and is equipped with the second water pipe, and the opposite side at one of a plurality of annular water pipes is fixed jointly to a plurality of first water pipes, atomizer is all installed to one side of first water pipe and second water pipe.
Preferably, the stirring device comprises a protection box arranged on one side of the reaction tank, a cavity is arranged in the reaction tank, two ends of one end side wall in the cavity are respectively and rotatably connected with two stirring rods, a plurality of stirring blades are fixed on the stirring rods at equal intervals, one end of each stirring rod penetrates through the other end side wall in the cavity and extends into the protection box, one end of each stirring rod is fixedly provided with a rotating wheel, the two rotating wheels are connected through a transmission belt, the transmission belt is sleeved on the two rotating wheels, a driving motor is fixed on one end side wall in the protection box, and the tail end of an output shaft of the driving motor is fixed on one side of one rotating wheel.
Preferably, the desulfurizing tower is made of carbon steel.
Preferably, a sealing element is fixed in each sleeve.
Preferably, the flue gas inlet pipeline of the desulfurizing tower is obliquely arranged.
Compared with the prior art, the invention has the beneficial effects that:
1. the stirring rod is driven to rotate through the cooperation among the driving motor, the driving belt and the stirring rod, so that the problem of uneven stirring is solved, the effect of fully mixing the absorbent is achieved, the absorbent can be conveniently and fully reacted with sulfur dioxide in the flue gas, and the desulfurization rate is improved;
2. through the cooperation among the annular water pipe, the first water pipe, the second water pipe and the atomizing nozzle, the atomized absorbent is conveniently sprayed out in a staggered way, the problem of insufficient spraying is solved, the effect that the atomized absorbent covers the inside of the desulfurizing tower is achieved, the gas phase and the liquid phase are ensured to be fully contacted, and the absorption efficiency of sulfur dioxide is improved;
3. the boiler flue gas is matched with the wet-type electric dust removal device, the wet-type ammonia desulfurization device, the SNCR denitration device and the wet-type electric dust removal device, so that the flue gas reaches an ultralow emission index, the problem that the flue gas cannot be fully treated is solved, the effect of reducing the concentration of outlet dust, the concentration of nitrogen oxides and the concentration of sulfur dioxide is achieved, and the national emission standard is conveniently reached;
to sum up, this device has realized carrying out intensive mixing's effect to the absorbent, and the convenience is fully reacted with sulfur dioxide in the flue gas, has realized that atomizing absorbent covers inside the desulfurizing tower, guarantees abundant contact between the gas-liquid, improves sulfur dioxide's absorption efficiency, improves desulfurization efficiency, has realized reducing export dirt concentration, nitrogen oxide concentration, sulfur dioxide concentration, conveniently reaches national emission standard.
Drawings
FIG. 1 is a schematic diagram of a boiler flue gas ultra-low emission device according to the present invention;
FIG. 2 is a top view of a desulfurizing tower of the ultralow emission device of the boiler flue gas;
FIG. 3 is a side view of a desulfurizing tower of the ultra-low emission device for flue gas of a boiler according to the present invention;
FIG. 4 is a schematic diagram of the internal structure of a reaction tank of an ultralow emission device for boiler flue gas.
In the figure: an ultralow-emission wet electric dust collector, a 2 demisting device, a 3 ammonia water preparation device, a 4 process water device, a 5 desulfurizing tower, a 6 filtering device, a 7 oxidation device, an 8 ammonium sulfate separation device, a 9 ammonium sulfate drying and packaging device, a 10 first water pipe, a 11 annular water pipe, a 12 sealing piece, a 13 atomizing nozzle, a 14 sleeve pipe, a 15 fixing piece, a 16 fixing ring, a 17 second water pipe, a 18 third water pipe, a 19 circulating water pump, a 20 reaction tank, a 21 protection box, a 22 stirring blade, a 23 stirring rod, a 24 driving belt, a 25 rotating wheel and a 26 driving motor.
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.
Referring to figures 1-4, an ultralow emission device for boiler flue gas comprises a desulfurizing tower 5, wherein the desulfurizing tower 5 is made of carbon steel, the desulfurizing tower 5 is firm and durable, an ultralow emission wet electric dust collector 1 is arranged on the desulfurizing tower 5, the ultralow emission wet electric dust collector 1 is in a vertical flow metal plate line type, gas vertically moves in a wet electric dust collector from top to bottom, an electric field adopts a low flow, continuous spraying and high flow, short time and zonal spraying flushing process, after the electric field is arranged on the desulfurizing tower, wet flue gas conditions provide a good working environment for wet removal, dust or fog drops are easier to charge and are further removed, a demister 2 is arranged at the lower end of the ultralow emission wet electric dust collector 1, the demister 2 adopts a two-stage folded plate type horizontal demister, and then the content of liquid drops in flue gas is reduced, and the flue gas is subjected to dust removal through the ultralow emission wet electric dust collector 1;
the lower extreme of defogging device 2 is equipped with spray set and agitating unit, and one side of desulfurizing tower 5 is equipped with process water device 4, and process water device 4's one end is fixed with two first connecting pipes, and one end of one of them first connecting pipe is fixed with aqueous ammonia preparation facilities 3, in the aqueous ammonia preparation facilities 3, liquid ammonia passes through the liquid ammonia vaporizer that the pipe conveying set up to the ammonia district, heats liquid ammonia water bath and generates ammonia, then adopts the aqueous ammonia preparation pump, absorbs ammonia in the aqueous ammonia storage tank and generates aqueous ammonia. The ammonia gas is dissolved in water to generate heat, the device is provided with a cooler for heat exchange and cooling, and then is conveyed into the reaction tank 20 through a pipeline, one end of the ammonia water preparation device 3 is fixed with a second connecting pipe, one end of the second connecting pipe is fixed at one end of the stirring device, one end of the other first connecting pipe is fixed at one end of the demisting device 2, and the process water device 4 provides water for the demisting device 2 and the ammonia water preparation device 3;
the lower end of one side of the desulfurizing tower 5 is connected with a filtering device 6, boiler flue gas is filtered through the filtering device 6, preliminary dust removal is carried out, the other side of the desulfurizing tower 5 is connected with an oxidation device 7, the oxidation device 7 is connected with an ammonium sulfate separation device 8, the ammonium sulfate separation device 8 is connected with an ammonium sulfate drying packaging device 9, ammonium sulfite generated in the desulfurizing tower 5 enters the oxidation device 7, forced oxidation is carried out in the oxidation tank, solution is completely oxidized through the air blast of an oxidation fan, a stirrer is arranged in the oxidation tank so as to ensure uniform mixing, slurry precipitation is prevented, ammonium sulfate with the concentration of 35% is generated, the ammonium sulfate enters the ammonium sulfate separation device 8, the ammonium sulfate is sent to a crystallization tank for buffering, the ammonium sulfate is sent to a cyclone through a crystallization pump, after thickening, the underflow of the cyclone enters a double-stage pushing centrifugal machine for solid-liquid separation, ammonium sulfate crystals with the moisture of 3% -5% are obtained, the ammonium sulfate crystals are then sent to the ammonium sulfate drying packaging device 9, the ammonium sulfate crystals are sent to a vibrating fluidized bed dryer, heated hot air sent by a hot air fan for drying, water vapor generated after drying is carried away, the hot air carrying water vapor is sent to a cyclone separator for final ammonium sulfate mist, the ammonium sulfate particles are sent to a water bath for dust removal, and semi-packaging, and the ammonium sulfate mist is sent to a water bath for automatic packaging, and dust removal, and the semi-packaging.
The spraying device comprises a reaction tank 20 arranged at one side of a desulfurizing tower 5, wherein a circulating water pump 19 is arranged at the upper end of the reaction tank 20, a third water pipe 18 is fixed at one end of the circulating water pump 19, a plurality of fixing pieces 15 are fixed at equal intervals on one circle of the desulfurizing tower 5, one end of each fixing piece 15 is fixed with a fixing ring 16, the fixing rings 16 at the same end are in a group, annular water pipes 11 are fixed in the fixing rings 16 of the two groups, one side of each annular water pipe 11 is fixed on the third water pipe 18, and an absorbent is conveyed into the annular water pipe 11 through the third water pipe 18 by the circulating water pump 19 so as to be conveniently conveyed into the first water pipe 10 and the second water pipe 17 respectively;
the sleeve 14 is all run through in the week of desulfurizing tower 5, all be fixed with sealing member 12 in the sleeve 14, prevent that flue gas from discharging, a plurality of sleeve 14 of same one end are a set of, wherein all run through in a set of sleeve 14 and be equipped with first water pipe 10, all run through in another set of sleeve 14 and be equipped with second water pipe 17, the opposite side at one of them annular water pipe 11 is fixed jointly to the one end of a plurality of first water pipes 10, the opposite side at another annular water pipe 11 is fixed jointly to the one end of a plurality of second water pipes 17, atomizer 13 is all installed to one side of first water pipe 10 and second water pipe 17, the absorbent in first water pipe 10 and the second water pipe 17 passes through the crisscross blowout of atomizer 13, make things convenient for the inside effect of atomizing absorbent cover desulfurizing tower, guarantee that gas-liquid two-phase fully contacts, improve sulfur dioxide's absorption efficiency, improve desulfurization efficiency.
According to the invention, the stirring device comprises a protection box 21 arranged at one side of a reaction tank 20, a cavity is arranged in the reaction tank 20, two ends of one end side wall in the cavity are respectively and rotatably connected with two stirring rods 23, a plurality of stirring blades 22 are fixed on the stirring rods 23 at equal intervals, one ends of the stirring rods 23 penetrate through the other end side wall in the cavity and extend into the protection box 21, one ends of the stirring rods 23 are fixedly provided with rotating wheels 25, the two rotating wheels 25 are in transmission connection through a transmission belt 24, the transmission belt 24 is sleeved on the two rotating wheels 25, one end side wall in the protection box 21 is fixedly provided with a driving motor 26, the tail end of an output shaft of the driving motor 26 is fixed at one side of one rotating wheel 25, the driving motor 26 drives one rotating wheel 25 to rotate, then drives the other rotating wheel 25 to rotate through the transmission belt 24, and the stirring blades 22 are driven to rotate, so that the absorbent is convenient to fully mix and react with sulfur dioxide in flue gas, and the desulfurization rate is improved.
In the invention, when in use, boiler flue gas is filtered through the filtering device 6 to carry out preliminary dust removal, then enters the desulfurizing tower 5 through the flue gas inlet pipeline, the flue gas inlet pipeline of the desulfurizing tower 5 is obliquely arranged, the flue gas reaction time is prolonged, the process water device 4 provides water for the demisting device 2 and the ammonia water preparing device 3, in the ammonia water preparing device 3, liquid ammonia is conveyed to the liquid ammonia vaporizer arranged in an ammonia area through the pipeline, liquid ammonia is heated in a water bath to generate ammonia, then an ammonia water preparing pump is adopted to absorb the ammonia in the ammonia water storage tank to generate ammonia water. The ammonia gas is dissolved in water to generate heat, the device is provided with a cooler for heat exchange and cooling, and then is conveyed into the reaction tank 20 by a pipeline, the driving motor 27 drives one of the rotating wheels 25 to rotate, and then drives the other rotating wheel 25 to rotate by the driving belt 24, and the rotating wheel 25 drives the stirring rod 23 to rotate, and then drives the stirring blade 22 to rotate, so that the absorbing agent is convenient to fully mix and fully react with sulfur dioxide in the flue gas, the desulfurization rate is improved, the absorbing agent is conveyed into the annular water pipe 11 by the circulating water pump 19 through the third water pipe 18, and then is respectively conveyed into the first water pipe 10 and the second water pipe 17, so that the atomizing nozzle 13 is used for staggered spraying, the effect of covering the inside of the desulfurizing tower by the atomizing absorbing agent is facilitated, the gas-liquid two-phase full contact is ensured, the absorption efficiency of the sulfur dioxide is improved, the desulfurization efficiency is improved, the flue gas after desulfurization is defogged by the defogging device 2, the demisting device 2 adopts a two-stage folded plate type horizontal demister to reduce the content of liquid drops in the flue gas, then the flue gas is dedusted by the ultra-low emission wet electric precipitation device 1, the ultra-low emission wet electric precipitation device 1 adopts a vertical flow metal plate line type, gas vertically moves from top to bottom in the wet electric precipitation device, an electric field adopts a small-flow, continuous spraying and large-flow, short-time and partition spraying flushing process, after being arranged on a desulfurizing tower, the wet flue gas condition provides a good working environment for wet removal, dust or fog drops are easier to charge and are further removed, ammonium sulfite is generated in the desulfurizing tower 5 and enters an oxidation device 7, then forced oxidation is adopted in the oxidation tank, the solution is completely oxidized by the air blast of an oxidation fan, a stirrer is arranged in the oxidation tank to ensure uniform mixing and prevent slurry precipitation, the generated ammonium sulfate with the concentration of 35% enters an ammonium sulfate separation device 8, is sent into a crystallization tank for buffering, is sent into a cyclone through a crystallization pump, after thickening, the underflow of the cyclone enters a double-stage pushing centrifugal machine for solid-liquid separation to obtain ammonium sulfate crystals containing 3% -5% of water, then enters an ammonium sulfate drying and packaging device 9, is sent into a vibrating fluidized bed dryer, is dried by heated hot air sent by a hot air fan, water vapor generated by drying is taken away by a draught fan, the hot air carrying the water vapor separates ammonium sulfate fine particles therein through a cyclone, is finally sent to a mist film water bath dust remover for treatment and then is discharged, and the ammonium sulfate particles are obtained after drying, enter a middle bin for temporary storage and are sent to a semi-automatic packaging machine for packaging.
The foregoing is only a preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art, who is within the scope of the present invention, should make equivalent substitutions or modifications according to the technical scheme of the present invention and the inventive concept thereof, and should be covered by the scope of the present invention.
Claims (3)
1. An ultralow emission device of boiler flue gas, includes desulfurizing tower (5), its characterized in that: the desulfurization tower (5) is provided with an ultralow-emission wet electric dust collector (1), the lower end of the ultralow-emission wet electric dust collector (1) is provided with a demisting device (2), the lower end of the demisting device (2) is provided with a spraying device and a stirring device, one side of the desulfurization tower (5) is provided with a process water device (4), one end of the process water device (4) is fixedly provided with two first connecting pipes, one end of one first connecting pipe is fixedly provided with an ammonia water preparation device (3), one end of the ammonia water preparation device (3) is fixedly provided with a second connecting pipe, one end of the second connecting pipe is fixedly provided with one end of the stirring device, one end of the other first connecting pipe is fixedly provided with one end of the demisting device (2), one side lower end of the desulfurization tower (5) is connected with a filtering device (6), the other side of the desulfurization tower (5) is connected with an oxidation device (7), the oxidation device (7) is connected with an ammonium sulfate separation device (8), and the ammonium sulfate separation device (8) is connected with an ammonium sulfate drying packaging device (9); the spray device comprises a reaction tank (20) arranged on one side of a desulfurizing tower (5), a circulating water pump (19) is arranged at the upper end of the reaction tank (20), a third water pipe (18) is fixed at one end of the circulating water pump (19), a plurality of fixing pieces (15) are fixed at equal intervals on one circumference of the desulfurizing tower (5), fixing rings (16) are fixed at one end of each fixing piece (15), the fixing rings (16) at the same end are in one group, annular water pipes (11) are fixed in the fixing rings (16) at two groups, one side of each annular water pipe (11) is fixed on the third water pipe (18), a plurality of sleeves (14) at the same end are arranged on one circumference of the desulfurizing tower (5), a first water pipe (10) is arranged in one group in a penetrating manner, a second water pipe (17) is arranged in the other group of sleeves (14), one end of each first water pipe (10) is fixed on the other side of one annular water pipe (11) together, one side of each annular water pipe (17) is fixed on the other side of the other annular water pipe (11), and one side of each annular water pipe (17) is provided with an atomizing nozzle (17); sealing elements (12) are fixed in the sleeves (14); the flue gas entering pipeline of the desulfurizing tower (5) is obliquely arranged.
2. The ultra-low emission device for boiler flue gas according to claim 1, wherein the stirring device comprises a protection box (21) arranged on one side of the reaction tank (20), a cavity is arranged in the reaction tank (20), two stirring rods (23) are rotatably connected to two ends of one end side wall in the cavity, a plurality of stirring blades (22) are fixed on the stirring rods (23) at equal intervals, one end of each stirring rod (23) penetrates through the other end side wall in the cavity and extends into the protection box (21), one end of each stirring rod (23) is fixed with a rotating wheel (25), the two rotating wheels (25) are in transmission connection through a transmission belt (24), the transmission belt (24) is sleeved on the two rotating wheels (25), a driving motor (26) is fixed on one end side wall in the protection box (21), and the end of an output shaft of the driving motor (26) is fixed on one side of one rotating wheel (25).
3. A boiler flue gas ultra-low emission device according to claim 1, characterized in that the desulfurizing tower (5) is made of carbon steel.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810892702.3A CN108771960B (en) | 2018-08-07 | 2018-08-07 | Ultralow emission device of boiler flue gas |
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| CN201810892702.3A CN108771960B (en) | 2018-08-07 | 2018-08-07 | Ultralow emission device of boiler flue gas |
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| CN108771960B true CN108771960B (en) | 2023-08-22 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110136458B (en) * | 2019-05-21 | 2021-10-01 | 江苏鸿康智能科技有限公司 | Traffic signal lamp with dust removal function |
| CN111888859B (en) * | 2020-09-02 | 2021-11-23 | 杭州广丰实业有限公司 | Energy-concerving and environment-protective type industrial waste gas recovery processing device |
| CN112757644A (en) * | 2020-12-01 | 2021-05-07 | 安徽工程大学 | High-efficient recovery unit of photosensitive curing 3D printing resin waste gas |
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| CN105597513A (en) * | 2016-01-29 | 2016-05-25 | 石家庄宇清环保科技有限公司 | Flue gas desulfurizing and dust removing device of coal-fired boiler |
| CN205760483U (en) * | 2016-05-13 | 2016-12-07 | 芜湖飞尚非金属材料有限公司 | A kind of air stove tail gas desulfurization device |
| CN208711412U (en) * | 2018-08-07 | 2019-04-09 | 河南骏化发展股份有限公司 | A kind of boiler flue minimum discharge device |
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2018
- 2018-08-07 CN CN201810892702.3A patent/CN108771960B/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102872696A (en) * | 2012-09-17 | 2013-01-16 | 江苏和亿昌环保工程科技有限公司 | Desulfurization system capable of efficiently catching aerosol in desulfurized clean flue gas |
| DE102014105030A1 (en) * | 2014-04-09 | 2015-10-15 | Heinz Tischmacher | Device and method for producing fertilizers from exhaust gases of a production plant |
| CN105597513A (en) * | 2016-01-29 | 2016-05-25 | 石家庄宇清环保科技有限公司 | Flue gas desulfurizing and dust removing device of coal-fired boiler |
| CN205760483U (en) * | 2016-05-13 | 2016-12-07 | 芜湖飞尚非金属材料有限公司 | A kind of air stove tail gas desulfurization device |
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| CN108771960A (en) | 2018-11-09 |
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