CN105910128B - A kind of boiler all-oxygen combustion technique - Google Patents
A kind of boiler all-oxygen combustion technique Download PDFInfo
- Publication number
- CN105910128B CN105910128B CN201610249585.XA CN201610249585A CN105910128B CN 105910128 B CN105910128 B CN 105910128B CN 201610249585 A CN201610249585 A CN 201610249585A CN 105910128 B CN105910128 B CN 105910128B
- Authority
- CN
- China
- Prior art keywords
- boiler
- oxygen
- combustion
- air
- carbon dioxide
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- 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
- F23L7/00—Supplying non-combustible liquids or gases, other than air, to the fire, e.g. oxygen, steam
- F23L7/007—Supplying oxygen or oxygen-enriched air
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23K—FEEDING FUEL TO COMBUSTION APPARATUS
- F23K3/00—Feeding or distributing of lump or pulverulent fuel to combustion apparatus
- F23K3/02—Pneumatic feeding arrangements, i.e. by air blast
-
- 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
- F23L9/00—Passages or apertures for delivering secondary air for completing combustion of fuel
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Treating Waste Gases (AREA)
- Air Supply (AREA)
Abstract
The invention discloses a kind of boiler all-oxygen combustion techniques, it is characterised in that：It is sent oxygen as First air into boiler, using oxygen and carbon dioxide as Secondary Air feeding boiler, the flue gas after the boiler combustion is purified flue gas after desulfurizer, and in the Secondary Air, the volume ratio of oxygen and carbon dioxide is（21~23）：（77~79）.The present invention realizes the all-oxygen combustion of boiler, avoids boiler combustion from generating the flue gas containing nitrogen oxides using air, solves the problems, such as denitration in boiler combustion, after being combined with desulfurizer, can complete gas cleaning, is suitable for the fields such as coal-fired flue-gas, furnace flue gas.
Description
Technical field
The present invention is a kind of boiler all-oxygen combustion technique, and in particular to a kind of flue gas that can realize that boiler combustion is low-nitrogen discharged
Purification technique belongs to coal-fired flue-gas and industrial furnace smoke.
Background technology
The energy resources natural endowment in China determines energy supply and consumptio of the China based on coal.Coal-fired flue-gas is constituted
China most important air pollution source.Purification treatment is carried out to industry and life coal-fired flue-gas, is that China administers air dirt
Dye, improves the key link of atmosphere quality.
It is insufficient existing for existing gas denitrifying technology increasingly to show with the continuous promotion required smoke gas treatment：
1）Denitrification process depends on catalyst, reducing agent or oxidant, and operating cost is high, complicated for operation.Oxidation and denitration skill
Art route oxidant cost is high, and catalytic-reduction denitrified technology path is more a lack of effective application on medium and small boiler and realizes operating mode
Condition so that medium and small boiler denitration never has the feasible solution of Technological Economy；
2）Under the situation that discharge standard is continuously improved, prior art operation has reached the limit of its technique application.For reality
The qualified discharge of existing high standard, existing catalytic-reduction denitrified technique are sprayed into as cost with excess of ammonia reducing agent, are made invariably
It is unbalance at entire smoke gas treatment system material, caking blocking is formed at air preheater, can not be run, be caused whole steadily in the long term at all
A boiler system is frequently necessary to shut down cleaning, becomes the big pain spot using unit.
It is excessive to prevent from generating after boiler combustion it is known that denitration is exactly to remove the process of nitrogen oxides in effluent
Nitrogen oxides is that follow-up denitrating technique forms pressure, existing patent document CN103170225A（A kind of realization industry cellar for storing things stove is oxygen-enriched
It is combustion-supporting to be combined system, 2013.03.01 with flue gas desulfurization and denitrification）It discloses and a kind of saving industry using rich Combustion Technicies
It stores stove firing rate and reduces NO in discharge exhaust gasX、SOXContent, and the system being combined with flue gas desulfurization and denitrification, but in the work
In the denitrating system of skill, still continues to use existing reducing agent and spray into denitration, hidden danger is brought to system stable operation.
In addition to this, in terms of reducing the nitrogen oxides that boiler combustion generates, the country also occurs a variety of related special in succession
Profit, such as：
Patent document CN104864392A（A kind of total oxygen coal dust MILD combustion methods and its device used,
2015.08.26）Disclosed air isolates oxygen by air separation unit, and the big speed difference jets of oxygen and coal dust are in Boiler Furnace
MILD burnings are formed in thorax, for flue gas after dedusting, desulfurization, condensation, partial fume enters CCS processing after burning, remaining flue gas
By gas-gas heat exchanger heating, dry into coal pulverizer and carry coal dust and be used as First air, by air separation plant Lai pure oxygen warp
It is used as Secondary Air and burnout degree after crossing gas-gas heat exchanger heating, the method achieve carbon emission reductions, reduce boiler NOXDischarge,
Has the advantages that energy saving, section money.
Invention content
The purpose of the present invention is to provide a kind of boiler all-oxygen combustion techniques, use total oxygen combustion adjuvant to boiler, that is, primary
Wind uses oxygen, and Secondary Air is using oxygen and is equipped with suitable carbon dioxide, and boiler combustion is avoided to contain nitrogen using air generation
The flue gas of oxide, this technique realize the all-oxygen combustion of boiler, solve the problems, such as denitration in boiler combustion, with desulfurizer
In conjunction with rear, you can complete gas cleaning, be suitable for the fields such as coal-fired flue-gas, furnace flue gas.
The present invention is achieved through the following technical solutions：A kind of boiler all-oxygen combustion technique is sent into oxygen as First air
Oxygen and carbon dioxide are sent into boiler by boiler as Secondary Air, and the flue gas after the boiler combustion obtains after desulfurizer
Purifying smoke, in the Secondary Air, the volume ratio of oxygen and carbon dioxide is（21~23）：（77~79）.
The present invention in the oxygen of Secondary Air, be aided with appropriate volume than carbon dioxide, be conducive to control boiler temperature.
Oxygen used in oxygen and Secondary Air used in the First air is made by PSA oxygenerators, and PSA oxygenerators are from big
Oxygen is made in gas, oxygen purity control provides safeguard 93%~95% for the all-oxygen combustion of boiler.
The excessive carbon dioxide generated with boiler combustion of dropping a hint of the PSA oxygenerators is vented by chimney.
Carbon dioxide used in the Secondary Air is produced by purifying smoke by VSPA devices.With titanium dioxide before VSPA devices
When carbon, VSPA devices are sent into the purifying smoke that air-introduced machine generates desulfurizer, it is easy to operate easy to control.
The VSPA devices produce the excessive gas of carbon dioxide and the excessive carbon dioxide of boiler combustion generation passes through cigarette
Chimney is vented.
The SO in sodium hydrogen carbonate powder removing flue gas is used in the desulfurizerXAfter be purified flue gas, the smoke-purifying
SO in gasXContent control in≤35mg/Nm3, NOXContent control in≤50mg/Nm3。
The steam coal powder is sent into boiler by Secondary Air.
Compared with prior art, the present invention haing the following advantages and advantageous effect：
（1）The present invention uses all-oxygen combustion in boiler, using oxygen as total oxygen combustion adjuvant as First air and two
Secondary wind is sent into boiler, is on the one hand conducive to the abundant burning of burning coal powder, is on the other hand avoided that boiler is produced using atmospheric combustion
Raw nitrogen oxides, reduces the denitration pressure to boiler smoke.
（2）Boiler all-oxygen combustion and flue gas desulfurization device are combined by the present invention, and the boiler combustion for forming complete set is net
Chemical industry skill, SO in the purifying smoke obtained by the techniqueXContent can be controlled in≤35mg/Nm3, NOXContent can be controlled in≤
50mg/Nm3。
（3）Suitable carbon dioxide is added in Secondary Air and is mixed into oxygen by the present invention, when oxygen in Secondary Air and titanium dioxide
The volume ratio control of carbon exists（21~23）：（77~79）When, moreover it is possible to it effectively adjusts in boiler combustion process due to total oxygen combustion adjuvant
The high temperature of formation can control temperature at 1600 DEG C hereinafter, being convenient for the normal use of boiler.
（4）PSA oxygen technique is combined by the present invention with boiler all-oxygen combustion, utilizes oxygen made from PSA oxygenerators
It is sent into boiler as total oxygen combustion adjuvant, participates in the all-oxygen combustion of boiler, oxygen is made in PSA oxygenerators from air, is sent into pot
The oxygen purity control of stove provides safeguard, process costs are low 93%~95% for the all-oxygen combustion of boiler.
（5）The present invention can be achieved purifying smoke cycling and reutilization, reduce emptying amount, purifying smoke can be sent with air-introduced machine to
VSPA devices produce carbon dioxide, the part as Secondary Air；Also it can be used as air-supply wind regime and coal dust introduced into boiler.
（6）Coal dust is introduced boiler by the present invention using Secondary Air as air-supply wind regime, and advantage has：It avoids making using air
For wind regime, reduces air and introduce boiler generation nitrogen oxides；The control of the volume ratio of oxygen and carbon dioxide exists in Secondary Air（21~
23）：（77~79）, coal dust firing can be made more abundant.
Description of the drawings
Fig. 1 is the process flow chart of the present invention.
Specific implementation mode
The present invention is described in further detail with reference to embodiment, embodiments of the present invention are not limited thereto.
Embodiment 1：
The present embodiment is related to a kind of boiler all-oxygen combustion technique, boiler is sent oxygen as First air into, by oxygen and two
Carbonoxide is sent into boiler as Secondary Air, and the flue gas after boiler combustion is purified flue gas after desulfurizer, in Secondary Air, oxygen
The volume ratio of gas and carbon dioxide is controlled 21：79.
Embodiment 2：
The present embodiment is related to a kind of boiler all-oxygen combustion technique, boiler is sent oxygen as First air into, by oxygen and two
Carbonoxide is sent into boiler as Secondary Air, and the flue gas after boiler combustion is purified flue gas after desulfurizer, in Secondary Air, oxygen
The volume ratio of gas and carbon dioxide is controlled 23：77.
In the present embodiment, oxygen used in oxygen and Secondary Air used in First air is made by PSA oxygenerators, PSA oxygen
The excessive carbon dioxide generated with boiler combustion of dropping a hint of device is vented by chimney.
Embodiment 3：
The present embodiment is related to a kind of boiler all-oxygen combustion technique, boiler is sent oxygen as First air into, by oxygen and two
Carbonoxide is sent into boiler as Secondary Air, and the flue gas after boiler combustion is purified flue gas after desulfurizer, in Secondary Air, oxygen
The volume ratio of gas and carbon dioxide is controlled 21：77.
In the present embodiment, carbon dioxide used in Secondary Air is produced by purifying smoke by VSPA devices, and VSPA devices are produced
The excessive carbon dioxide that the excessive gas of carbon dioxide is generated with boiler combustion is vented by chimney.
Embodiment 4：
The present embodiment is related to a kind of boiler all-oxygen combustion technique, boiler is sent oxygen as First air into, by oxygen and two
Carbonoxide is sent into boiler as Secondary Air, and the flue gas after boiler combustion is purified flue gas after desulfurizer, in Secondary Air, oxygen
The volume ratio of gas and carbon dioxide is controlled 23：79.
In the present embodiment, carbon dioxide used in Secondary Air is produced by purifying smoke by VSPA devices, and VSPA devices are produced
The excessive carbon dioxide that the excessive gas of carbon dioxide is generated with boiler combustion is vented by chimney.
Embodiment 5：
The present embodiment is related to a kind of boiler all-oxygen combustion technique, boiler is sent oxygen as First air into, by oxygen and two
Carbonoxide is sent into boiler as Secondary Air, and the flue gas after boiler combustion is purified flue gas after desulfurizer, in Secondary Air, oxygen
The volume ratio of gas and carbon dioxide is controlled 22：78.
In the present embodiment, the SO in sodium hydrogen carbonate powder removing flue gas is used in desulfurizerXAfter be purified flue gas, this is net
Change SO in flue gasXContent control in 35mg/Nm3, NOXContent control in 50mg/Nm3。
Embodiment 6：
The present embodiment is related to a kind of boiler all-oxygen combustion technique, boiler is sent oxygen as First air into, by oxygen and two
Carbonoxide is sent into boiler as Secondary Air, and the flue gas after boiler combustion is purified flue gas after desulfurizer, in Secondary Air, oxygen
The volume ratio of gas and carbon dioxide is controlled 21：78.
In the present embodiment, steam coal powder is sent into boiler by above-mentioned Secondary Air.
Embodiment 7：
A kind of boiler all-oxygen combustion technique, as shown in Figure 1, boiler is sent by primary air fan using oxygen as First air,
Oxygen and carbon dioxide are sent into boiler as Secondary Air by overfire air fan, the flue gas after boiler combustion obtains after desulfurizer
To purifying smoke, in Secondary Air, the volume ratio of oxygen and carbon dioxide is controlled 22：77.
In the present embodiment, oxygen used in oxygen and Secondary Air used in First air is made by PSA oxygenerators, Secondary Air institute
It is produced by VSPA devices by purifying smoke with carbon dioxide, the dropping a hint of PSA oxygenerators, VSPA devices produce carbon dioxide
The excessive carbon dioxide that is generated with boiler combustion of excessive gas be vented by chimney.In addition, using bicarbonate in desulfurizer
Sodium powder removes the SO in flue gasXAfter be purified flue gas, SO in the purifying smokeXContent can be controlled in 32mg/Nm3, NOX's
Content is controlled in 48mg/Nm3.Steam coal powder is sent into boiler by above-mentioned Secondary Air.
Embodiment 8：
A kind of boiler all-oxygen combustion technique, as shown in Figure 1, boiler is sent by primary air fan using oxygen as First air,
Oxygen and carbon dioxide are sent into boiler as Secondary Air by overfire air fan, the flue gas after boiler combustion obtains after desulfurizer
To purifying smoke, in Secondary Air, the volume ratio of oxygen and carbon dioxide is controlled 23：78.
In the present embodiment, oxygen used in oxygen and Secondary Air used in First air is made by PSA oxygenerators, Secondary Air institute
It is produced by VSPA devices by purifying smoke with carbon dioxide, the dropping a hint of PSA oxygenerators, VSPA devices produce carbon dioxide
The excessive carbon dioxide that is generated with boiler combustion of excessive gas be vented by chimney.In addition, using bicarbonate in desulfurizer
Sodium powder removes the SO in flue gasXAfter be purified flue gas, SO in the purifying smokeXContent can be controlled in 34mg/Nm3, NOX's
Content is controlled in 45mg/Nm3.Steam coal powder is sent into boiler by above-mentioned Secondary Air.
Embodiment 9：
A kind of boiler all-oxygen combustion technique, as shown in Figure 1, boiler is sent by primary air fan using oxygen as First air,
Oxygen and carbon dioxide are sent into boiler as Secondary Air by overfire air fan, the flue gas after boiler combustion obtains after desulfurizer
To purifying smoke, in Secondary Air, the volume ratio of oxygen and carbon dioxide is controlled 23：77.
In the present embodiment, oxygen used in oxygen and Secondary Air used in First air is made by PSA oxygenerators, Secondary Air institute
It is produced by VSPA devices by purifying smoke with carbon dioxide, the dropping a hint of PSA oxygenerators, VSPA devices produce carbon dioxide
The excessive carbon dioxide that is generated with boiler combustion of excessive gas be vented by chimney.In addition, using bicarbonate in desulfurizer
Sodium powder removes the SO in flue gasXAfter be purified flue gas, SO in the purifying smokeXContent can be controlled in 30mg/Nm3, NOX's
Content is controlled in 45mg/Nm3.Steam coal powder is sent into boiler by above-mentioned Secondary Air.
Embodiment 10：
A kind of boiler all-oxygen combustion technique, as shown in Figure 1, boiler is sent by primary air fan using oxygen as First air,
Oxygen and carbon dioxide are sent into boiler as Secondary Air by overfire air fan, the flue gas after boiler combustion obtains after desulfurizer
To purifying smoke, in Secondary Air, the volume ratio of oxygen and carbon dioxide is controlled 22：78.
In the present embodiment, oxygen used in oxygen and Secondary Air used in First air is made by PSA oxygenerators, Secondary Air institute
It is produced by VSPA devices by purifying smoke with carbon dioxide, the dropping a hint of PSA oxygenerators, VSPA devices produce carbon dioxide
The excessive carbon dioxide that is generated with boiler combustion of excessive gas be vented by chimney.In addition, using bicarbonate in desulfurizer
Sodium powder removes the SO in flue gasXAfter be purified flue gas, SO in the purifying smokeXContent can be controlled in 35mg/Nm3, NOX's
Content is controlled in 39mg/Nm3.Steam coal powder is sent into boiler by above-mentioned Secondary Air.
Embodiment 11：
A kind of boiler all-oxygen combustion technique, as shown in Figure 1, boiler is sent by primary air fan using oxygen as First air,
Oxygen and carbon dioxide are sent into boiler as Secondary Air by overfire air fan, the flue gas after boiler combustion obtains after desulfurizer
To purifying smoke, in Secondary Air, the volume ratio of oxygen and carbon dioxide is controlled 21：79.
In the present embodiment, oxygen used in oxygen and Secondary Air used in First air is made by PSA oxygenerators, Secondary Air institute
It is produced by VSPA devices by purifying smoke with carbon dioxide, the dropping a hint of PSA oxygenerators, VSPA devices produce carbon dioxide
The excessive carbon dioxide that is generated with boiler combustion of excessive gas be vented by chimney.In addition, using bicarbonate in desulfurizer
Sodium powder removes the SO in flue gasXAfter be purified flue gas, SO in the purifying smokeXContent can be controlled in 33mg/Nm3, NOX's
Content is controlled in 40mg/Nm3.Steam coal powder is sent into boiler by above-mentioned Secondary Air.
Embodiment 12：
A kind of boiler all-oxygen combustion technique, as shown in Figure 1, boiler is sent by primary air fan using oxygen as First air,
Oxygen and carbon dioxide are sent into boiler as Secondary Air by overfire air fan, the flue gas after boiler combustion obtains after desulfurizer
To purifying smoke, in Secondary Air, the volume ratio of oxygen and carbon dioxide is controlled 22.5：77.
In the present embodiment, oxygen used in oxygen and Secondary Air used in First air is made by PSA oxygenerators, Secondary Air institute
It is produced by VSPA devices by purifying smoke with carbon dioxide, the dropping a hint of PSA oxygenerators, VSPA devices produce carbon dioxide
The excessive carbon dioxide that is generated with boiler combustion of excessive gas be vented by chimney.In addition, using bicarbonate in desulfurizer
Sodium powder removes the SO in flue gasXAfter be purified flue gas, SO in the purifying smokeXContent can be controlled in 32mg/Nm3, NOX's
Content is controlled in 46mg/Nm3.Steam coal powder is sent into boiler by above-mentioned Secondary Air.
Embodiment 13：
A kind of boiler all-oxygen combustion technique, as shown in Figure 1, boiler is sent by primary air fan using oxygen as First air,
Oxygen and carbon dioxide are sent into boiler as Secondary Air by overfire air fan, the flue gas after boiler combustion obtains after desulfurizer
To purifying smoke, in Secondary Air, the volume ratio of oxygen and carbon dioxide is controlled 22：77.
In the present embodiment, oxygen used in oxygen and Secondary Air used in First air is made by PSA oxygenerators, Secondary Air institute
It is produced by VSPA devices by purifying smoke with carbon dioxide, the dropping a hint of PSA oxygenerators, VSPA devices produce carbon dioxide
The excessive carbon dioxide that is generated with boiler combustion of excessive gas be vented by chimney.In addition, using bicarbonate in desulfurizer
Sodium powder removes the SO in flue gasXAfter be purified flue gas, SO in the purifying smokeXContent can be controlled in 31mg/Nm3, NOX's
Content is controlled in 48mg/Nm3.Steam coal powder is sent into boiler by above-mentioned Secondary Air.
Embodiment 14：
A kind of boiler all-oxygen combustion technique, as shown in Figure 1, boiler is sent by primary air fan using oxygen as First air,
Oxygen and carbon dioxide are sent into boiler as Secondary Air by overfire air fan, the flue gas after boiler combustion obtains after desulfurizer
To purifying smoke, in Secondary Air, the volume ratio of oxygen and carbon dioxide is controlled 23：78.
In the present embodiment, oxygen used in oxygen and Secondary Air used in First air is made by PSA oxygenerators, Secondary Air institute
It is produced by VSPA devices by purifying smoke with carbon dioxide, the dropping a hint of PSA oxygenerators, VSPA devices produce carbon dioxide
The excessive carbon dioxide that is generated with boiler combustion of excessive gas be vented by chimney.In addition, using bicarbonate in desulfurizer
Sodium powder removes the SO in flue gasXAfter be purified flue gas, SO in the purifying smokeXContent can be controlled in 35mg/Nm3, NOX's
Content is controlled in 42mg/Nm3.Steam coal powder is sent into boiler by above-mentioned Secondary Air.
The above is only presently preferred embodiments of the present invention, not does limitation in any form to the present invention, it is every according to
According to the technical spirit of the present invention to any simple modification, equivalent variations made by above example, the protection of the present invention is each fallen within
Within the scope of.
Claims (5)
1. a kind of boiler all-oxygen combustion technique, it is characterised in that：It is sent oxygen as First air into boiler, by oxygen and titanium dioxide
Carbon is sent into boiler as Secondary Air, and the flue gas after the boiler combustion is purified flue gas, the Secondary Air after desulfurizer
In, the volume ratio of oxygen and carbon dioxide is（21~23）：（77~79）,
Oxygen used in oxygen and Secondary Air used in the First air is made by PSA oxygenerators,
The SO in sodium hydrogen carbonate powder removing flue gas is used in the desulfurizerXAfter be purified flue gas, in the purifying smoke
SOXContent control in≤35mg/Nm3, NOXContent control in≤50mg/Nm3。
2. a kind of boiler all-oxygen combustion technique according to claim 1, it is characterised in that：The PSA oxygenerators are put
The excessive carbon dioxide that air is generated with boiler combustion is vented by chimney.
3. a kind of boiler all-oxygen combustion technique according to claim 1, it is characterised in that：Titanium dioxide used in the Secondary Air
Carbon is produced by purifying smoke by VSPA devices.
4. a kind of boiler all-oxygen combustion technique according to claim 3, it is characterised in that：The VSPA devices produce dioxy
The excessive carbon dioxide that the excessive gas of change carbon is generated with boiler combustion is vented by chimney.
5. a kind of boiler all-oxygen combustion technique according to claim 1, it is characterised in that：The steam coal powder passes through two
Secondary wind is sent into boiler.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610249585.XA CN105910128B (en) | 2016-04-21 | 2016-04-21 | A kind of boiler all-oxygen combustion technique |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610249585.XA CN105910128B (en) | 2016-04-21 | 2016-04-21 | A kind of boiler all-oxygen combustion technique |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105910128A CN105910128A (en) | 2016-08-31 |
| CN105910128B true CN105910128B (en) | 2018-10-16 |
Family
ID=56746657
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610249585.XA Active CN105910128B (en) | 2016-04-21 | 2016-04-21 | A kind of boiler all-oxygen combustion technique |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105910128B (en) |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100441946C (en) * | 2006-11-09 | 2008-12-10 | 华中科技大学 | Boiler system of circulating fluid bed burning in oxygen enrichment |
| CN102425789A (en) * | 2011-11-03 | 2012-04-25 | 华北电力大学（保定） | Coal-fired fluidized bed micro oxygen rich combustion CO2 emission reduction method and system |
| CN102494334B (en) * | 2011-12-22 | 2013-12-25 | 上海锅炉厂有限公司 | Coal powder combustion system used in high-moisture type coal oxygen-enriched combustion |
| CN103615713B (en) * | 2013-11-28 | 2015-11-11 | 华中科技大学 | A kind of coal dust oxygen enrichment flameless combustion process and system thereof |
| CN103968373A (en) * | 2014-04-25 | 2014-08-06 | 华中科技大学 | Pulverized coal oxygen-rich combustion method and system |
| CN105066113A (en) * | 2015-07-27 | 2015-11-18 | 四川川锅锅炉有限责任公司 | Coal-powder boiler oxygen-enriched combustion smoke near-zero emission and power generation system |
-
2016
- 2016-04-21 CN CN201610249585.XA patent/CN105910128B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN105910128A (en) | 2016-08-31 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP1474219B1 (en) | Methof of steam-generating combustion system and emission control using oxygen enhancement | |
| CN105091615B (en) | A kind of integrated conduct method of agglomeration for iron mine flue gas pollutant | |
| ES2602988T3 (en) | Desulfurization in a regenerative calcium cycle system | |
| JP5863885B2 (en) | Boiler system and power plant including the same | |
| CN107684808A (en) | A kind of sulfur recovery tail gas handling process and system | |
| CN204198421U (en) | A kind of molten sulfur pond gas recovery system | |
| CA2635611A1 (en) | Oxy-fuel combustion with integrated pollution control | |
| JPWO2008143074A1 (en) | Pulverized coal boiler, pulverized coal combustion method, pulverized coal fired thermal power generation system, and exhaust gas purification system of pulverized coal boiler | |
| CN106969641A (en) | One kind sintering flue gas decomposes bioxin desulphurization denitration recovery waste heat system and method from combustion-supporting | |
| CN101810993B (en) | Method for achieving high effective mercury removal through modifying electrostatic precipitator | |
| CN104807002B (en) | A kind of CFBB oxygen-enriched combusting dry method desulfuration system and method | |
| CN208260535U (en) | A kind of desulphurization denitration dust removal integrated plant suitable for biomass boiler | |
| CN109721259B (en) | Lime kiln hot air circulation system | |
| CN104801160A (en) | Method for reducing nitrogen oxides in flue gas of medium and small sized industrial coal burning boiler through combination with wet-method sulfur removing technology | |
| JP2015529545A (en) | Method for controlling acidic compounds produced from oxyfuel combustion processes | |
| CN109647158B (en) | Flue gas desulfurization and denitrification system of circulating fluidized bed boiler and treatment method thereof | |
| CN107702107A (en) | A kind of waste incinerator and Large-scale fire-electricity unit fume side coupled system | |
| CN105222143A (en) | Mercury removal device and method are worked in coordination with in one kind of multiple gas cleanings | |
| CN105910128B (en) | A kind of boiler all-oxygen combustion technique | |
| CN105351918A (en) | Lean oxygen combustion process for improving capture efficiency of carbon dioxide | |
| CN102180465A (en) | Energy-saving clean activated carbon production system | |
| CN103910482A (en) | Double-neck float glass melting furnace, and method used for reducing nitrogen oxide emission of double-neck float glass melting furnace | |
| CN103411206B (en) | Chain grate boiler with two staggering secondary air spray pipe layers and limestone spray pipe system | |
| CN105783020B (en) | A kind of oxygen-enriched low nitrogen burning denitrating technique of coal-burning boiler | |
| CN105344200A (en) | Technology for raising capture efficiency of carbon dioxide in flue gas by utilization of water vapor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |