CN105779077A - Coal-saving emission-reduction integrating method for coal-fired boiler - Google Patents
Coal-saving emission-reduction integrating method for coal-fired boiler Download PDFInfo
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- CN105779077A CN105779077A CN201610343860.4A CN201610343860A CN105779077A CN 105779077 A CN105779077 A CN 105779077A CN 201610343860 A CN201610343860 A CN 201610343860A CN 105779077 A CN105779077 A CN 105779077A
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
- C10L9/00—Treating solid fuels to improve their combustion
- C10L9/10—Treating solid fuels to improve their combustion by using additives
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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
- B01D53/02—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 by adsorption, e.g. preparative gas chromatography
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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
- B01D53/86—Catalytic processes
- B01D53/8603—Removing sulfur compounds
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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
- B01D53/86—Catalytic processes
- B01D53/8621—Removing nitrogen compounds
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
- C10L9/00—Treating solid fuels to improve their combustion
- C10L9/10—Treating solid fuels to improve their combustion by using additives
- C10L9/12—Oxidation means, e.g. oxygen-generating compounds
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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
- F23J7/00—Arrangement of devices for supplying chemicals to fire
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2253/00—Adsorbents used in seperation treatment of gases and vapours
- B01D2253/10—Inorganic adsorbents
- B01D2253/102—Carbon
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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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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
- C10L2200/00—Components of fuel compositions
- C10L2200/02—Inorganic or organic compounds containing atoms other than C, H or O, e.g. organic compounds containing heteroatoms or metal organic complexes
- C10L2200/0254—Oxygen containing compounds
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
- C10L2200/00—Components of fuel compositions
- C10L2200/02—Inorganic or organic compounds containing atoms other than C, H or O, e.g. organic compounds containing heteroatoms or metal organic complexes
- C10L2200/0272—Silicon containing compounds
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
- C10L2200/00—Components of fuel compositions
- C10L2200/02—Inorganic or organic compounds containing atoms other than C, H or O, e.g. organic compounds containing heteroatoms or metal organic complexes
- C10L2200/029—Salts, such as carbonates, oxides, hydroxides, percompounds, e.g. peroxides, perborates, nitrates, nitrites, sulfates, and silicates
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
- C10L2230/00—Function and purpose of a components of a fuel or the composition as a whole
- C10L2230/22—Function and purpose of a components of a fuel or the composition as a whole for improving fuel economy or fuel efficiency
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
- C10L2290/00—Fuel preparation or upgrading, processes or apparatus therefore, comprising specific process steps or apparatus units
- C10L2290/14—Injection, e.g. in a reactor or a fuel stream during fuel production
- C10L2290/141—Injection, e.g. in a reactor or a fuel stream during fuel production of additive or catalyst
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
- C10L2290/00—Fuel preparation or upgrading, processes or apparatus therefore, comprising specific process steps or apparatus units
- C10L2290/24—Mixing, stirring of fuel components
Abstract
The invention discloses a coal-saving emission-reduction integrating method for a coal-fired boiler. A method of combination of twice combustion-supporting and sectional fume treatment is adopted; twice combustion-supporting comprises steps of directly mixing a powder composite combustion improver with fire coal and feeding into a boiler for combustion, and ejecting a liquid composite combustion improver onto the combusting coal by using a combustion-supporting ejector; and the sectional fume treatment comprises steps of treating the fume and dust generated from combustion by using a cyclone dust collector, an electric bag dust collector and a sulfur-nitrogen dust collector in sequence. Due to a twice combustion-supporting method, the combustion effect of coal can be improved, the coal-saving purpose can be achieved, and meanwhile basis is made for emission reduction. Furthermore, a sectional fume treatment system is adopted for cyclone dust collection and electric bag dust collection in sequence gradually from large to small, sulfur nitride in tail gas can be subjected to one-step high-temperature treatment, and then the fume emission standard is prior to the national standard, or even meets the EU standard.
Description
Technical field
The invention belongs to coal-burning boiler technical field, particularly relate to a kind of coal-burning boiler and economize on coal reduction of discharging integrated process.
Background technology
Coal-burning boiler particularly Small Coal-fired Boilers basically there exist two large problems, and one is that the thermal conversion efficiency of coal is relatively low, and the residual carbon content of flyash reaches more than 8%, have up to 12%；Two is the common severe overweight of the dust of fume emission, sulfide and nitride.About the separation property that the topmost shortcoming of the technology economized on coal and reduce discharging of coal-burning boiler is general technical, it is not from imperfect combustion and discharge necessarily relation, it be not by economize on coal with reduce discharging organically connected together with.But carry out the design of engineering in the way of foot pain doctor's foot for the treatment of the head when the head aches, not only do not reach, in overall, the effect reduced discharging of economizing on coal, and each system particularly cannot be made effectively to run, increase investment and operating cost.The part and reduce discharging the major defect of part each technology and remain that the systematicness of technology is strong, separation property is heavier of economizing on coal about coal-burning boiler.Economize on coal part, select the mode not science of combustion-supporting agent for fuel coal, formula unreasonable, cause combustion-supporting effect not give full play to, thus causing that cost increases, and, no consideration is not according to boiler fired coal feature, carries out Blend grouping and the method for combustion-supporting segmentation.Reducing discharging part, whole reduction of discharging process does not have System design, substantially uses cloth bag due to dust disposal, filtration of can only lowering the temperature, and reduction catalysts effect is poor at low temperatures for sulfide in tail gas and nitride.
Summary of the invention
It is an object of the invention to provide a kind of coal-burning boiler to economize on coal reduction of discharging integrated process, aim to solve the problem that part economized on coal by existing coal-burning boiler and reduction of discharging part exists that systematicness is strong, separation property is heavier, select the mode not science of combustion-supporting agent for fuel coal, formula unreasonable, combustion-supporting effect is caused not give full play to, sulfide in tail gas and the nitride problem that reduction catalysts effect is poor at low temperatures.
The present invention is realized in, a kind of coal-burning boiler is economized on coal reduction of discharging integrated process, adopt twice combustion-supporting method combined with segmentation fume treatment, twice combustion-supporting respectively directly mixes the compound combustion adjuvant of powder state with coal-fired, the compound combustion adjuvant adding proportion adopted with the fire coal that calorific value is more than 500 kilocalories is 4～7%, and the compound combustion adjuvant adding proportion adopted with the fire coal that calorific value is below 500 kilocalories is 3～5%；It is then fed in boiler to burn；The compound combustion adjuvant of liquid is ejected on burning coal with combustion-supporting ejector, the compound combustion adjuvant adding proportion adopted with the fire coal that calorific value is more than 500 kilocalories is 4～8%, and the compound combustion adjuvant adding proportion adopted with the fire coal that calorific value is below 500 kilocalories is 3～5%；Segment processing flue gas is the flue dust that burning coal produces to be passed sequentially through the flue gas that fire coal produces by cyclone dust collector, electrostatic fabric filter and sulfur nitrogen cleaner unit process；Described coal-burning boiler is economized on coal after reduction of discharging integrated process is directly pulverized and mixed with powder state compound combustion adjuvant and is mixed with fire coal；Liquid compound combustion adjuvant is sprayed into boiler auxiliary combustion by combustion-supporting ejector, and compound combustion adjuvant is mixed by twice burning-aid method with coal cinder and coal dust, forms the problem overcome because coal constituent causes；Second time is that complexing agent ejector is sent into boiler, for the combustion zone of chamber structure and the combustion position of different boilers；With stagewise fume treatment to the disposable high-temperature process of sulfur nitride in tail gas, Part I is cyclone dust extractor, and dust 10 microns and disposal box are 2.5 microns；Part II is electricity bag integrated dust collector, is electrically connected with electrostatic generator respectively by several dust settling pockets, and Part III is the triple processor of sulfur nitrogen.
Further, described powder state compound combustion adjuvant, by weight percentage mixture A type compound combustion adjuvant be 10～20% calcium carbonate and 10～20% superfine SiO 2 constitute desulfurizing agent, the oxidant being made up of the potassium nitrate of 5～15% and the potassium chlorate of 5～10%, the catalyst that the ferrum oxide by 5～10%, the aluminium oxide of 5～10%, the chromium oxide of 5～10%, the manganese dioxide of 10～15% are constituted；By weight percentage mixture Type B compound combustion adjuvant be 5～10% calcium carbonate and 10～15% superfine SiO 2 constitute desulfurizing agent, the oxidant being made up of the potassium nitrate of 5～15% and the potassium chlorate of 5～10%, the catalyst being made up of the ferrum oxide of 5～10%, the aluminium oxide of 5～10% and 10～15% manganese dioxide.
Further, described liquid compound combustion adjuvant, the methanol of 25～35%, the dimethoxy dimethyl ether of 15～20%, the dimethyl carbonate of 15～20%, and the water of 30～40%.
Another object of the present invention is to provide a kind of described coal-burning boiler coal-burning boiler reducing discharging integrated process of economizing on coal to economize on coal reduction of discharging integrated device, described coal-burning boiler reduction of discharging integrated device of economizing on coal includes: cyclone dust extractor, electrostatic fabric filter and sulfur nitrogen cleaner unit.
Further, described cyclone dust extractor is a two-part cyclone dust extractor, designs two-part cyclone system, it is possible to increase the efficiency of whirlwind gravitational dust collection, reaches twice classification to dust granules and remove, and improves dust removing effects；Reducer pipe reduces caliber, makes the speed of air-flow improve, and accelerates the air velocity in the cyclone dust extractor of the second level, it is ensured that dust removing effects.
Further, described electrostatic fabric filter is that a kind of metal film is made the integral type dust collection with bag type filtering function and electrostatic precipitation function, is provided with floral disc in dirt pocket, mounts several dust settling pockets electrically connected with electrostatic generator under floral disc；Floral disc be connected above blowback Pulsating Flow pipe, the top of upper cone is connected to electric control valve, the other end of electric control valve with cleaning gas outlet be connected.This cleaner unit by electrostatic and membrane filtration integration, the shortcoming not only overcoming prior art, and can decrease investment and operating cost.
Further, described sulfur nitrogen remover is to utilize Activated Carbon For Desulphurization From Furfural Residue as catalytic adsorption material.
Coal-burning boiler provided by the invention is economized on coal reduction of discharging integrated process, combustion-supporting by twice combustion adjuvant, improve the fuel efficiency of coal, and established the basis reduced discharging, then through stagewise fume treatment, respectively dust, nitride and sulfide are carried out the processing mode of omnibearing reduction of discharging integral type, from the inherent mechanism of the many factors of coal-burning boiler, integrated relevant technology, it is achieved that the purpose reduced discharging of economizing on coal.The present invention, with twice burning-aid method, improves coal burning effect, reaches the purpose economized on coal, and also lays a good foundation for reduction of discharging simultaneously.Carry out cyclone dust removal, electricity pocket type chalk dust removing again with stagewise smoke processing system in order step by step from big to small, and to the disposable high-temperature process of sulfur nitride in tail gas, make standard limit of smog release be better than GB, or even reach EU criteria.The segmentation flue gas processing method of the present invention is by integrated to cyclone dust extractor, electrostatic fabric filter and sulfur nitrogen cleaner unit, forms the emission-reducing system of a complete dust, sulfide and nitride；Cyclone dust extractor is a two-part cyclone dust extractor, for different-grain diameter, forms the thickness method that whirlwind processes respectively, improves cyclone dust removal efficiency；Electrostatic fabric filter is that a kind of metal film is made the integral type dust collection with bag type filtering function and electrostatic precipitation function；Sulfur nitrogen remover is to utilize Activated Carbon For Desulphurization From Furfural Residue as catalytic adsorption material, reaches the efficiency of elimination sulfide and oxide simultaneously；To economizing on coal and bi-directional probing and control are taked in reduction of discharging, it is achieved combustion-supporting process and fume treatment process effective interaction.
Accompanying drawing explanation
Fig. 1 be the embodiment of the present invention provide coal-burning boiler economize on coal reduction of discharging integrated process flow chart.
Detailed description of the invention
In order to make the purpose of the present invention, technical scheme and advantage clearly understand, below in conjunction with embodiment, the present invention is further elaborated.Should be appreciated that specific embodiment described herein is only in order to explain the present invention, is not intended to limit the present invention.
Below in conjunction with accompanying drawing, the application principle of the present invention is explained in detail.
As it is shown in figure 1, the embodiment of the present invention comprises the following steps:
S101: adopt twice combustion-supporting method combined with segmentation fume treatment, twice combustion-supporting respectively directly mix the compound combustion adjuvant of powder state with coal-fired, is then fed into that boiler is interior to burn；
S102: the compound combustion adjuvant of liquid is ejected on burning coal with combustion-supporting ejector；
S103: segment processing flue gas is the flue dust that burning coal produces to be passed sequentially through the flue gas that fire coal produces by cyclone dust collector, electrostatic fabric filter and sulfur nitrogen cleaner unit process.
The coal-burning boiler of the present invention is economized on coal reduction of discharging integrated process, twice burning aid coal saving and stagewise fume treatment is organically combined；Secondary combustion-supporting coal-saving method is will to prepare compound combustion adjuvant 1 two kinds different and combustion-supporting complexing agent 2.
Compound combustion adjuvant 1 forms two kinds of formula for sulphur coal and low-sulfur coal；Compound combustion adjuvant 1 mixes with fire coal after being directly pulverized and mixed as powder state.
Compound combustion adjuvant 2 is liquid, combustion-supporting ejector spray into boiler auxiliary combustion.
Further, described powder state compound combustion adjuvant, by weight percentage mixture A type compound combustion adjuvant be 10～20% calcium carbonate and 10～20% superfine SiO 2 constitute desulfurizing agent, the oxidant being made up of the potassium nitrate of 5～15% and the potassium chlorate of 5～10%, the catalyst that the ferrum oxide by 5～10%, the aluminium oxide of 5～10%, the chromium oxide of 5～10%, the manganese dioxide of 10～15% are constituted；By weight percentage mixture Type B compound combustion adjuvant be 5～10% calcium carbonate and 10～15% superfine SiO 2 constitute desulfurizing agent, the oxidant being made up of the potassium nitrate of 5～15% and the potassium chlorate of 5～10%, the catalyst being made up of the ferrum oxide of 5～10%, the aluminium oxide of 5～10% and 10～15% manganese dioxide.
Further, described liquid compound combustion adjuvant, the methanol of 25～35%, the dimethoxy dimethyl ether of 15～20%, the dimethyl carbonate of 15～20%, and the water of 30～40%.
Segmentation flue gas processing method is by integrated to cyclone dust extractor, electrostatic fabric filter and sulfur nitrogen cleaner unit, forms the emission-reducing system of a complete dust, sulfide and nitride.
Cyclone dust extractor is a two-part cyclone dust extractor, for different-grain diameter, forms the thickness method that whirlwind processes respectively, improves cyclone dust removal efficiency；Electrostatic fabric filter is that a kind of metal film is made the integral type dust collection with bag type filtering function and electrostatic precipitation function；Sulfur nitrogen remover is to utilize Activated Carbon For Desulphurization From Furfural Residue as catalytic adsorption material, reaches the efficiency of elimination sulfide and oxide simultaneously.
The present invention is to economizing on coal and bi-directional probing and control are taked in reduction of discharging, it is achieved combustion-supporting process and fume treatment process effective interaction.
The foregoing is only presently preferred embodiments of the present invention, not in order to limit the present invention, all any amendment, equivalent replacement and improvement etc. made within the spirit and principles in the present invention, should be included within protection scope of the present invention.
Claims (9)
1. a coal-burning boiler is economized on coal reduction of discharging integrated process, it is characterised in that described coal-burning boiler is economized on coal after reduction of discharging integrated process is directly pulverized and mixed with powder state compound combustion adjuvant and mixed with coal-fired；Liquid compound combustion adjuvant is sprayed into boiler auxiliary combustion by combustion-supporting ejector, twice burning-aid method；With stagewise fume treatment to the disposable high-temperature process of sulfur nitride in tail gas.
2. coal-burning boiler as claimed in claim 1 is economized on coal reduction of discharging integrated process, it is characterized in that, described coal-burning boiler economize on coal reduction of discharging integrated process adopt twice combustion-supporting method combined with segmentation fume treatment, twice combustion-supporting respectively directly mix the compound combustion adjuvant of powder state with coal-fired, is then fed into that boiler is interior to burn；The compound combustion adjuvant of liquid is ejected on burning coal with combustion-supporting ejector；Segment processing flue gas is the flue dust that burning coal produces to be passed sequentially through the flue gas that fire coal produces by cyclone dust collector, electrostatic fabric filter and sulfur nitrogen cleaner unit process.
3. coal-burning boiler as claimed in claim 2 is economized on coal reduction of discharging integrated process, it is characterised in that described with stagewise fume treatment to the disposable high-temperature process of sulfur nitride in tail gas, Part I is cyclone dust extractor, and dust 10 microns and disposal box are 2.5 microns；Part II is electricity bag integrated dust collector, is electrically connected with electrostatic generator respectively by several dust settling pockets, and Part III is the triple processor of sulfur nitrogen.
4. coal-burning boiler as claimed in claim 1 is economized on coal reduction of discharging integrated process, it is characterised in that described powder state compound combustion adjuvant position:
By weight percentage mixture A type compound combustion adjuvant be 10～20% calcium carbonate and 10～20% superfine SiO 2 constitute desulfurizing agent, the oxidant being made up of the potassium nitrate of 5～15% and the potassium chlorate of 5～10%, the catalyst that the ferrum oxide by 5～10%, the aluminium oxide of 5～10%, the chromium oxide of 5～10%, the manganese dioxide of 10～15% are constituted；
By weight percentage mixture Type B compound combustion adjuvant be 5～10% calcium carbonate and 10～15% superfine SiO 2 constitute desulfurizing agent, the oxidant being made up of the potassium nitrate of 5～15% and the potassium chlorate of 5～10%, the catalyst being made up of the ferrum oxide of 5～10%, the aluminium oxide of 5～10% and 10～15% manganese dioxide.
5. coal-burning boiler as claimed in claim 1 is economized on coal reduction of discharging integrated process, it is characterized in that, described liquid compound combustion adjuvant is by weight percentage: the methanol of 25～35%, the dimethoxy dimethyl ether of 15～20%, the dimethyl carbonate of 15～20% and the water of 30～40%.
6. a coal-burning boiler as claimed in claim 1 coal-burning boiler reducing discharging integrated process of economizing on coal is economized on coal reduction of discharging integrated device, it is characterised in that described coal-burning boiler reduction of discharging integrated device of economizing on coal includes: cyclone dust extractor, electrostatic fabric filter and sulfur nitrogen cleaner unit.
7. coal-burning boiler as claimed in claim 6 is economized on coal reduction of discharging integrated device, it is characterised in that described cyclone dust extractor is a two-part cyclone dust extractor.
8. coal-burning boiler as claimed in claim 6 is economized on coal reduction of discharging integrated device, it is characterised in that described electrostatic fabric filter is that a kind of metal film is made the integral type dust collection with bag type filtering function and electrostatic precipitation function；It is provided with floral disc in dirt pocket, under floral disc, mounts several dust settling pockets electrically connected with electrostatic generator；Floral disc be connected above blowback Pulsating Flow pipe, the top of upper cone is connected to electric control valve, the other end of electric control valve with cleaning gas outlet be connected.
9. coal-burning boiler as claimed in claim 4 is economized on coal reduction of discharging integrated device, it is characterised in that described sulfur nitrogen remover is to utilize Activated Carbon For Desulphurization From Furfural Residue as catalytic adsorption material.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2018036417A1 (en) * | 2016-08-23 | 2018-03-01 | Airborne China Limited | Flue gas clean up method using a multiple system approach |
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