CN112066403A - Ultra-low emission integrated system of supercritical carbon dioxide coal-fired boiler - Google Patents
Ultra-low emission integrated system of supercritical carbon dioxide coal-fired boiler Download PDFInfo
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- CN112066403A CN112066403A CN202010972170.1A CN202010972170A CN112066403A CN 112066403 A CN112066403 A CN 112066403A CN 202010972170 A CN202010972170 A CN 202010972170A CN 112066403 A CN112066403 A CN 112066403A
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- air preheater
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J15/00—Arrangements of devices for treating smoke or fumes
- F23J15/06—Arrangements of devices for treating smoke or fumes of coolers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G7/00—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals
- F23G7/06—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals of waste gases or noxious gases, e.g. exhaust gases
- F23G7/061—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals of waste gases or noxious gases, e.g. exhaust gases with supplementary heating
- F23G7/065—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals of waste gases or noxious gases, e.g. exhaust gases with supplementary heating using gaseous or liquid fuel
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J15/00—Arrangements of devices for treating smoke or fumes
- F23J15/02—Arrangements of devices for treating smoke or fumes of purifiers, e.g. for removing noxious material
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J15/00—Arrangements of devices for treating smoke or fumes
- F23J15/08—Arrangements of devices for treating smoke or fumes of heaters
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23L—SUPPLYING AIR OR NON-COMBUSTIBLE LIQUIDS OR GASES TO COMBUSTION APPARATUS IN GENERAL ; VALVES OR DAMPERS SPECIALLY ADAPTED FOR CONTROLLING AIR SUPPLY OR DRAUGHT IN COMBUSTION APPARATUS; INDUCING DRAUGHT IN COMBUSTION APPARATUS; TOPS FOR CHIMNEYS OR VENTILATING SHAFTS; TERMINALS FOR FLUES
- F23L15/00—Heating of air supplied for combustion
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/34—Indirect CO2mitigation, i.e. by acting on non CO2directly related matters of the process, e.g. pre-heating or heat recovery
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Chimneys And Flues (AREA)
- Treating Waste Gases (AREA)
Abstract
The invention discloses an ultra-low emission integrated system of a supercritical carbon dioxide coal-fired boiler, belonging to the technical field of ultra-low emission. The system comprises a boiler unit and a dedusting and denitration unit; the boiler unit comprises an ammonia injection burner; the dust removal denitration unit comprises a high-temperature dust remover, a high-temperature air preheater, an SCR denitration reactor, a low-temperature air preheater and an air blower which are sequentially connected, wherein the high-temperature dust remover is arranged in front of the high-temperature air preheater, and an adjustable constant-pressure valve is additionally arranged on the inner side of the inlet of the high-temperature dust remover and is used for maintaining the smoke pressure of the high-temperature dust remover during normal work. According to the invention, the high-temperature dust remover is arranged in front of the high-temperature air preheater, the service life of the high-temperature air preheater can be greatly prolonged by the dedusted flue gas passing through the high-temperature air preheater, and the problem of pipeline blockage of the high-temperature air preheater is also reduced.
Description
Technical Field
The invention belongs to the technical field of ultra-low emission, and particularly relates to an ultra-low emission integrated system of a supercritical carbon dioxide coal-fired boiler.
Background
In the coal-fired power generation boiler system using water as the circulating working medium, the heat exchange characteristic of the steam can not meet the current requirement, so that the high-temperature and high-pressure parameters of the steam and the like need to be continuously improved, the circulating efficiency is improved, and meanwhile, higher requirements are brought to the performance of steel. Because of the special physical property of the supercritical carbon dioxide, compared with steam, the supercritical carbon dioxide boiler has the advantages of smaller power generation system, smaller occupied area and the like, and because the energy density of the supercritical carbon dioxide boiler is larger than that of water, the supercritical carbon dioxide boiler has higher efficiency according to the high-temperature resistance level of the existing steel. Compared with a steam boiler, the supercritical carbon dioxide boiler has the advantages of compact power generation system, small occupied area, water conservation, small steel erosion and the like, so that the supercritical carbon dioxide boiler obtains wide attention of domestic research institutions and has wide future prospect.
According to the requirements of 'the comprehensive implementation of ultralow emission and energy-saving modification working scheme of the coal-fired power plant' issued by the state, the coal-fired power plant realizes ultralow emission in 2020, and the ultralow emission of pollutants is an important problem to be solved urgently in the coal-fired boiler.
In view of the above-mentioned problem of achieving ultra-low emission of pollutants, prior art has disclosed technical solutions, such as patent application No.: 202010289078.5, filing date: in 14 days 04/2020, the invention and creation name is: a denitration, desulfurization and dust removal integrated system of a supercritical carbon dioxide coal-fired boiler is characterized in that a boiler unit is internally provided with a multi-stage ammonia-spraying denitration device to realize staged denitration in the boiler, and a dust removal and denitration unit can perform denitration and dust removal again through selective catalytic reduction reaction; the low-temperature flue gas recirculation mode is adopted for combustion, so that the temperature in the furnace can be effectively reduced, the generation of thermal NOx is reduced, the concentration of NOx discharged from the tail of the furnace is reduced, and meanwhile, the oxygen concentration of the recirculated flue gas is reduced, so that the requirement of an annular high-temperature low-oxygen reduction region formed by an ammonia injection combustor is favorably met, and the deep denitration of the supercritical carbon dioxide coal-fired boiler is realized.
Another patent has patent application numbers: 202010289079.X, application date: in 14 days 04/2020, the invention and creation name is: a deep denitration process of a supercritical carbon dioxide coal-fired boiler comprises three-stage ammonia injection denitration: respectively injecting fuel and an amino reducing agent into a main combustion area of an in-furnace combustor by using an ammonia injection combustor to form an annular high-temperature low-oxygen reduction area with the temperature of 850-1400 ℃, and performing reduction reaction to realize primary denitration; the secondary ammonia spraying device and the tertiary ammonia spraying device respectively spray an amino reducing agent to a main combustion area at the upper part of the high-temperature low-oxygen reduction area and a burnout area after the burnout air so as to realize secondary and tertiary denitration; dedusting, desulfurization and denitrification: the flue gas is cooled to 70-90 ℃ after SCR denitration is carried out in the dedusting and denitration unit, and then is sent into the furnace for cyclic denitration treatment, deep and graded denitration in the furnace is realized through a three-stage ammonia spraying denitration process, the temperature in the furnace is effectively reduced through low-temperature flue gas recirculation combustion, thermal NOx generation is reduced, and deep denitration of a supercritical coal-fired boiler is realized.
However, the boiler flue gas passes through the high-temperature air preheater and then the high-temperature dust remover in the circulation process, the flue gas contains larger dust, the flue gas amount generated by the supercritical carbon dioxide boiler is larger than that of a common boiler, and a large amount of dust-containing flue gas passes through the high-temperature preheater pipeline to abrade the pipe wall. When a large amount of dust is attached to the outside of the pipe wall, the accumulated dust can block the pipe, and the heat transfer effect is affected. A part of residual heat of the ash of the high-temperature dust remover cannot be well utilized; the lower temperature of the flue gas at the outlet of the tail low-temperature air preheater is not beneficial to the regulation of the temperature and the flow of the flue gas, and the normal operation of the boiler is influenced.
In conclusion, how to recycle the ultra-low emission of the flue gas pollutants of the supercritical carbon dioxide boiler and the waste heat of the high-temperature flue gas is a technical problem to be solved urgently in the prior art.
Disclosure of Invention
1. Technical problem to be solved by the invention
Aiming at the problem of ultralow emission of smoke pollutants of the existing supercritical carbon dioxide boiler, the invention provides an ultralow emission integrated system of a supercritical carbon dioxide coal-fired boiler, which solves the problems of blockage and abrasion of a high-temperature air preheater.
2. Technical scheme
In order to achieve the purpose, the technical scheme provided by the invention is as follows:
the invention discloses an ultra-low emission integrated system of a supercritical carbon dioxide coal-fired boiler, which comprises a boiler unit and a dedusting and denitration unit;
the boiler unit comprises an ammonia injection burner;
the dedusting and denitration unit comprises a high-temperature deduster, a high-temperature air preheater, an SCR denitration reactor, a low-temperature air preheater and a blower which are connected in sequence,
the high temperature dust remover set up in before the high temperature air preheater high temperature dust remover entrance inboard add adjustable constant pressure valve and be used for maintaining the flue gas pressure of high temperature dust remover normal during operation, adjustable constant pressure valve's one end welding or flange joint back and high temperature dust remover entry linkage intercommunication, the other end of adjustable constant pressure valve is sealed.
In a possible embodiment of the invention, the adjustable constant pressure valve is provided with a conical ash bucket for collecting settled dust, and the bottom of the conical ash bucket is provided with an electromagnetic valve.
In a possible implementation manner of the invention, the waste heat recovery device further comprises a waste heat recovery unit, wherein the waste heat recovery unit comprises a heat exchange pipe and a bottom circulating system, the heat exchange pipe is arranged below an ash bucket of the high-temperature dust remover, and the heat exchange pipe is communicated with the bottom circulating system which takes the working medium as carbon dioxide.
In one possible embodiment of the invention, the heat exchange tube is a medium-temperature gravity heat exchange tube, and the working temperature is 200-600 ℃.
In a possible implementation manner of the present invention, the present invention further includes a desulfurization unit, wherein the desulfurization unit includes a heat recovery device, a wet desulfurization tower, a wet electric precipitator, and a reheater, which are connected in sequence.
In one possible embodiment of the invention, the system further comprises an air circulation unit, wherein the air circulation unit comprises a high-temperature deduster rear flue gas induced draft fan, a high-temperature air preheater rear flue gas induced draft fan, an SCR denitration reactor rear flue gas induced draft fan and a low-temperature air preheater rear flue gas induced draft fan; and the rear flue gas draught fan of the high-temperature dust remover, the rear flue gas draught fan of the high-temperature air preheater, the rear flue gas draught fan of the SCR denitration reactor and the rear flue gas draught fan of the low-temperature air preheater are used for extracting part of flue gas of the high-temperature dust remover, the high-temperature air preheater, the SCR denitration reactor and the flue gas outlet of the low-temperature air preheater and are introduced into an ammonia injection combustor to adjust the combustion environment.
3. Advantageous effects
Compared with the prior art, the technical scheme provided by the invention has the following remarkable effects:
(1) according to the ultra-low emission integrated system, the high-temperature dust remover is arranged in front of the high-temperature air preheater, the service life of the high-temperature air preheater can be greatly prolonged when the dedusted flue gas passes through the high-temperature air preheater, and the problem of pipeline blockage of the high-temperature air preheater is also reduced;
(2) according to the ultralow-emission integrated system, the adjustable constant pressure valve with the sedimentation ash bucket is arranged at the inlet of the high-temperature dust remover, so that the problem of efficiency reduction caused by the change of the pressure of flue gas of the high-temperature dust remover is solved, and the working life of the adjustable constant pressure valve is greatly prolonged by the sedimentation ash bucket;
(3) according to the ultra-low emission integrated system, the bottom circulation heat exchange system is utilized to recover the waste heat of the ash of the high-temperature dust remover, so that the heat loss is reduced, and the overall efficiency of the boiler is improved;
(4) according to the ultra-low emission integrated system, a draught fan is used for extracting part of flue gas at the flue gas outlet of the high-temperature dust remover, the high-temperature air preheater, the SCR reactor and the low-temperature air preheater, and the flue gas with different temperatures is beneficial to adjusting the combustion environment of a hearth;
(5) the ultra-low emission integrated system of the invention has certain influence on the heat exchange efficiency of the high-temperature preheater after the high-temperature preheater is placed, but reduces the maintenance work and prolongs the service life of the high-temperature preheater, and simultaneously, in order to make up for the loss, a bottom circulating system is additionally arranged, and the waste heat utilization is carried out on the ash (the temperature is 400-450 ℃) of the high-temperature dust remover.
Drawings
FIG. 1 is a schematic structural diagram of an ultra-low emission integrated system of a supercritical carbon dioxide coal-fired boiler according to the present invention;
FIG. 2 is a schematic structural diagram of a high-temperature dust remover of the ultra-low emission integrated system of the supercritical carbon dioxide coal-fired boiler of the invention.
Description of reference numerals:
100. a boiler unit; 110. an ammonia injection burner;
200. a waste heat recovery unit; 210. a heat exchange pipe; 211. a bottom circulation system;
300. a dedusting and denitration unit; 310. a high temperature dust remover; 311. a high temperature air preheater; 312. an SCR denitration reactor; 313. a low temperature air preheater; 314. a blower; 315. an adjustable constant pressure valve; 316. a conical ash bucket;
400. a desulfurization unit; 410. a heat recovery device; 411. a wet desulfurization tower; 412. a wet electric precipitator; 413. a reheater;
500. an air circulation unit; 510. a flue gas induced draft fan behind the high-temperature dust remover; 511. a flue gas induced draft fan behind the high-temperature air preheater; 512. a flue gas induced draft fan behind the SCR denitration reactor; 513. and a flue gas induced draft fan behind the low-temperature air preheater.
Detailed Description
For a further understanding of the invention, reference should be made to the following detailed description taken in conjunction with the accompanying drawings and examples.
Example 1
As shown in fig. 1 and 2, the arrows in the drawings indicate the traveling direction of the hot gas and the material. The supercritical carbon dioxide coal-fired boiler ultra-low emission integrated system of the embodiment comprises a boiler unit 100, a waste heat recovery unit 200, a dust removal and denitration unit 300, a desulfurization unit 400 and an air circulation unit 500.
In the present embodiment, the boiler unit 100 comprises an ammonia injection burner 110, and the ammonia injection burner 110 may be a burner of application No. 202010289079.
In this embodiment, the dust removal and denitration unit 300 includes a high-temperature dust remover 310, a high-temperature air preheater 311, an SCR denitration reactor 312, a low-temperature air preheater 313 and a blower 314, which are connected in sequence.
In this embodiment, the waste heat recovery unit 200 includes a heat exchange pipe 210 and a bottom circulation system 211, the heat exchange pipe 210 is disposed under the ash bucket of the high temperature dust collector 310, and the heat exchange pipe 210 is connected and communicated with the bottom circulation system 211 which uses the working medium as carbon dioxide.
In this embodiment, the desulfurization unit 400 includes a heat recoverer 410, a wet desulfurization tower 411, a wet electric dust collector 412, and a reheater 413, which are connected in sequence.
In this embodiment, the air circulation unit 500 includes a rear flue gas induced draft fan 510 of the high temperature dust remover, a rear flue gas induced draft fan 511 of the high temperature air preheater, a rear flue gas induced draft fan 512 of the SCR denitration reactor, and a rear flue gas induced draft fan 513 of the low temperature air preheater; the flue gas at the flue gas outlets of the high-temperature dust remover 310, the high-temperature air preheater 311, the SCR denitration reactor 312 and the low-temperature air preheater 313 is extracted by a high-temperature dust remover rear flue gas induced draft fan 510, a high-temperature air preheater rear flue gas induced draft fan 511, an SCR denitration reactor rear flue gas induced draft fan 512 and a low-temperature air preheater rear flue gas induced draft fan 513, and is introduced into the ammonia injection combustor 110 to adjust the combustion environment.
Further, the adjustable constant pressure valve 315 is provided with a conical ash bucket 316 for collecting settled dust, and the bottom of the conical ash bucket 316 is provided with an electromagnetic valve connected with the control system of the high temperature dust collector 310.
It should be noted that, in the supercritical carbon dioxide coal-fired boiler ultra-low emission integrated system of the present invention, because the amount of flue gas of supercritical carbon dioxide is larger than that of the conventional boiler, if the flue gas passes through the high temperature air preheater without first removing dust, a large amount of flue gas containing dust will cause abrasion to the pipe wall of the high temperature air preheater, and in case of serious blockage, the pipe of the high temperature air preheater will be blocked. According to a large number of tests and analyses, the high-temperature dust remover 310 is arranged in front of the high-temperature air preheater 311, an adjustable constant pressure valve 315 is additionally arranged on the inner side of an inlet of the high-temperature dust remover 310 and used for maintaining the pressure of flue gas generated when the high-temperature dust remover 310 normally works, one end of the adjustable constant pressure valve is connected and communicated with the inlet of the high-temperature dust remover after being welded or connected through a flange, and the other end of the adjustable constant pressure valve is closed.
Before transferring high temperature dust remover 310 to high temperature air preheater 311, in order to utilize the waste heat as far as possible, utilize bottom circulation system 211 to retrieve the waste heat of high temperature dust removal ash, nevertheless owing to set up high temperature dust remover 310 before high temperature air preheater 311, the operating temperature of so high temperature dust remover 310 changes, and this must lead to high temperature dust remover 310 during operation flue gas pressure to change, influences dust collection efficiency. If the working efficiency is not guaranteed on the premise of increasing the volume of the high-temperature dust collector 310, an adjustable constant pressure valve 315 can be additionally arranged on the inner side of the inlet of the high-temperature dust collector 310 to maintain the pressure of the flue gas when the high-temperature dust collector 310 works normally, so that the dust removal efficiency is guaranteed.
In the practical use process, we can find that except the working temperature change caused by the high-temperature dust remover 310 arranged in front of the high-temperature air preheater 311, large particles can be enriched at the inlet of the high-temperature dust remover 310, so that the inlet is easily blocked, and after the adjustable constant pressure valve 315 is additionally arranged, vortex is formed at the adjustable constant pressure valve 315 possibly due to high-temperature gas, so that large particles are disturbed to rapidly fall into the conical ash bucket 316 of the adjustable constant pressure valve 315, and the possibility of blocking at the inlet is reduced.
In this embodiment, the heat exchange tube 210 is a medium temperature gravity heat exchange tube, and the working temperature is 200-600 ℃.
The present invention and its embodiments have been described above schematically, without limitation, and what is shown in the drawings is only one of the embodiments of the present invention, and the actual structure is not limited thereto. Therefore, if the person skilled in the art receives the teaching, without departing from the spirit of the invention, the person skilled in the art shall not inventively design the similar structural modes and embodiments to the technical solution, but shall fall within the scope of the invention.
Claims (6)
1. An ultra-low emission integrated system of a supercritical carbon dioxide coal-fired boiler comprises a boiler unit (100) and a dedusting and denitration unit (300);
the boiler unit (100) comprises an ammonia injection burner (110);
the dedusting and denitration unit (300) comprises a high-temperature deduster (310), a high-temperature air preheater (311), an SCR denitration reactor (312), a low-temperature air preheater (313) and a blower (314) which are connected in sequence;
the high-temperature dust collector is characterized in that the high-temperature dust collector (310) is arranged in front of the high-temperature air preheater (311), and an adjustable constant pressure valve (315) is welded at an inlet of the high-temperature dust collector (310) and used for maintaining the smoke pressure of the high-temperature dust collector (310) during normal work.
2. The ultra-low emission integrated system of a supercritical carbon dioxide coal-fired boiler according to claim 1, characterized in that the adjustable constant pressure valve (315) is provided with a conical ash bucket (316) for collecting settled dust, and the bottom of the conical ash bucket (316) is provided with a solenoid valve.
3. The ultra-low emission integrated system of the supercritical carbon dioxide coal-fired boiler according to claim 1, further comprising a waste heat recovery unit (200), wherein the waste heat recovery unit (200) comprises a heat exchange pipe (210) and a bottom circulation system (211), the heat exchange pipe (210) is arranged below an ash bucket of the high-temperature dust collector (310), and the heat exchange pipe (210) is communicated with the bottom circulation system (211) which uses working medium as carbon dioxide.
4. The ultra-low emission integrated system of the supercritical carbon dioxide coal-fired boiler according to claim 3, wherein the heat exchange pipe (210) is a medium temperature gravity heat exchange pipe, and the working temperature is 200-600 ℃.
5. The ultra-low emission integrated system of the supercritical carbon dioxide coal-fired boiler according to claim 3, further comprising a desulfurization unit (400), wherein the desulfurization unit (400) comprises a heat recoverer (410), a wet desulfurization tower (411), a wet electric precipitator (412) and a reheater (413) which are connected in sequence.
6. The ultra-low emission integrated system of the supercritical carbon dioxide coal-fired boiler according to claim 5, further comprising an air circulation unit (500), wherein the air circulation unit (500) comprises a high-temperature deduster rear flue gas induced draft fan (510), a high-temperature air preheater rear flue gas induced draft fan (511), an SCR denitration reactor rear flue gas induced draft fan (512) and a low-temperature air preheater rear flue gas induced draft fan (513); the method comprises the steps of utilizing a high-temperature dust collector rear flue gas induced draft fan (510), a high-temperature air preheater rear flue gas induced draft fan (511), an SCR denitration reactor rear flue gas induced draft fan (512) and a low-temperature air preheater rear flue gas induced draft fan (513) to extract parts of flue gas outlets of a high-temperature dust collector (310), a high-temperature air preheater (311), an SCR denitration reactor (312) and a low-temperature air preheater (313) and introducing the flue gas into an ammonia injection combustor (110) to adjust the combustion environment.
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| CN202010972170.1A CN112066403A (en) | 2020-09-16 | 2020-09-16 | Ultra-low emission integrated system of supercritical carbon dioxide coal-fired boiler |
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| CN202010972170.1A CN112066403A (en) | 2020-09-16 | 2020-09-16 | Ultra-low emission integrated system of supercritical carbon dioxide coal-fired boiler |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113048470A (en) * | 2021-03-31 | 2021-06-29 | 安徽工业大学 | Ultralow-emission experimental process for pulverized coal combustion |
| CN113154365A (en) * | 2021-03-31 | 2021-07-23 | 安徽工业大学 | Supercritical CO2Experimental system for coal-fired boiler ultralow emission research |
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| CN111450681A (en) * | 2020-04-14 | 2020-07-28 | 安徽工业大学 | Denitration, desulfurization and dust removal integrated system for supercritical carbon dioxide coal-fired boiler |
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| CN104214769A (en) * | 2014-08-29 | 2014-12-17 | 中国华能集团清洁能源技术研究院有限公司 | Stone coal power generation selenium extraction comprehensive utilization system and method combining high-temperature dust removing and low-temperature dust removing |
| CN204574069U (en) * | 2015-02-06 | 2015-08-19 | 浙江大学 | Coal fired power plant minimum discharge environmental protection island system |
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| CN111450681A (en) * | 2020-04-14 | 2020-07-28 | 安徽工业大学 | Denitration, desulfurization and dust removal integrated system for supercritical carbon dioxide coal-fired boiler |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113048470A (en) * | 2021-03-31 | 2021-06-29 | 安徽工业大学 | Ultralow-emission experimental process for pulverized coal combustion |
| CN113154365A (en) * | 2021-03-31 | 2021-07-23 | 安徽工业大学 | Supercritical CO2Experimental system for coal-fired boiler ultralow emission research |
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