CN110332520A - A kind of coal dust oxygen-enriched combustion system - Google Patents
A kind of coal dust oxygen-enriched combustion system Download PDFInfo
- Publication number
- CN110332520A CN110332520A CN201910751346.8A CN201910751346A CN110332520A CN 110332520 A CN110332520 A CN 110332520A CN 201910751346 A CN201910751346 A CN 201910751346A CN 110332520 A CN110332520 A CN 110332520A
- Authority
- CN
- China
- Prior art keywords
- coal dust
- oxygen
- enriched
- boiler
- discharge nozzle
- 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.)
- Pending
Links
- 239000002817 coal dust Substances 0.000 title claims abstract description 55
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 title claims abstract description 49
- 239000001301 oxygen Substances 0.000 title claims abstract description 49
- 229910052760 oxygen Inorganic materials 0.000 title claims abstract description 49
- 238000002485 combustion reaction Methods 0.000 title claims abstract description 16
- 239000003245 coal Substances 0.000 claims description 3
- 239000012530 fluid Substances 0.000 claims description 3
- 238000007599 discharging Methods 0.000 claims 1
- 239000000843 powder Substances 0.000 claims 1
- 238000010304 firing Methods 0.000 abstract description 3
- MWUXSHHQAYIFBG-UHFFFAOYSA-N nitrogen oxide Inorganic materials O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 3
- 239000003054 catalyst Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000505 pernicious effect Effects 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23C—METHODS OR APPARATUS FOR COMBUSTION USING FLUID FUEL OR SOLID FUEL SUSPENDED IN A CARRIER GAS OR AIR
- F23C5/00—Disposition of burners with respect to the combustion chamber or to one another; Mounting of burners in combustion apparatus
- F23C5/08—Disposition of burners
-
- 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
- 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
-
- 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)
Abstract
The present invention relates to coal dust firing fields, in particular to a kind of coal dust oxygen-enriched combustion system, including boiler, for coal dust mechanism, oxygen-enriched generating mechanism, discharge nozzle is surrounded on the inner sidewall of the boiler, the discharge nozzle open at one end, other end closing, for the discharge nozzle towards several openings are provided on the side wall at the boiler center, the opening is provided with nozzle；The oxygen-enriched mechanism that is produced into is connect by a transfer pipeline with the open end of the discharge nozzle；Described for coal dust mechanism includes coal dust pot, conveying mechanism, and the coal dust pot is connect by the conveying mechanism with the transfer pipeline；The oxygen-enriched generating mechanism, which is used to convey oxygen-enriched air to boiler and pushes coal dust, to be entered in the boiler.The combustion system structure is simple, and principle is understandable, practical, is suitble to promote in this field.
Description
Technical field
The present invention relates to coal dust firing field, in particular to a kind of coal dust oxygen-enriched combustion system.
Background technique
China is the big country of consumption of coal, and the development model of highly energy-consuming has driven economic fast development, while also to ring
Border causes serious pollution.In order to contain this development trend, the "sport for all" of energy-saving and emission-reduction is carried out throughout the country.Coal dust
The polluted gas of the generation of burning has greatly the reason is that because burning insufficient caused by the burning of coal dust is insufficient
Coal dust resource is wasted to a certain extent.Thus, in order to allow coal dust firing to obtain more sufficiently thoroughly, there is a kind of method
Catalyst is exactly added in coal dust, to promote the burning of coal dust, but catalyst belongs to consumables, and dosage is big, will increase cost.
Best bet is improved further to combustion system.
Summary of the invention
In view of the foregoing, it is necessary to which a kind of coal dust oxygen-enriched combustion system is provided.
In order to achieve the above objectives, the technical scheme adopted by the invention is that:
A kind of coal dust oxygen-enriched combustion system, including boiler, for coal dust mechanism, oxygen-enriched generating mechanism, on the inner sidewall of the boiler
It is surrounded with discharge nozzle, the discharge nozzle open at one end, other end closing, side of the discharge nozzle towards the boiler center
Several openings are provided on wall, the opening is provided with nozzle；The oxygen-enriched mechanism that is produced into passes through a transfer pipeline and institute
State the open end connection of discharge nozzle；Described for coal dust mechanism includes coal dust pot, conveying mechanism, and the coal dust pot passes through the conveying
Mechanism is connect with the transfer pipeline；The oxygen-enriched generating mechanism, which is used to convey oxygen-enriched air to boiler and push coal dust, enters institute
It states in boiler.
Further, the opening is provided with guide plate in the discharge nozzle, the guide plate is used for will be in pipe
Fluid is guided to the opening.
Further, the discharge port of the coal dust pot is funnel-shaped, and the conveying mechanism is spiral conveying mechanism, the spiral shell
The feeding inlet of rotation conveying mechanism is located at the lower section of the coal dust pot discharge port, and the discharge port of the spiral conveying mechanism connects by one
Adapter tube is connected to the transfer pipeline.
Further, the oxygen-enriched generating mechanism includes blower, oxygen-enriched generator, roots blower, the blower, oxygen-enriched hair
Raw device, roots blower are sequentially connected, and the air outlet of the roots blower is connect with the transfer pipeline.
The invention has the following advantages:
Coal dust oxygen-enriched combustion system of the invention, oxygen-enriched generating mechanism can convey oxygen-enriched air to boiler, while for coal dust mechanism
Coal dust can be delivered in the pipeline of conveying oxygen-enriched air, so that the nozzle in boiler simultaneously sprays coal dust and oxygen-enriched air,
Distributed ejection form can make burning of the coal dust in boiler more sufficiently thoroughly, more efficient, reduce nitrogen oxides
The discharge of equal pernicious gases.The combustion system structure is simple, and principle is understandable, practical, is suitble to promote in this field.
Detailed description of the invention
Fig. 1 is the schematic diagram of coal dust oxygen-enriched combustion system of the present invention；
Fig. 2 is overlooking structure diagram of the discharge nozzle in boiler internal.
Main element symbol description
In figure: boiler 1, discharge nozzle 2, opening 3, nozzle 4, transfer pipeline 5, coal dust pot 6, conveying mechanism 7, guide plate 8, connecting tube
9, blower 10, oxygen-enriched generator 11, roots blower 12.
The present invention that the following detailed description will be further explained with reference to the above drawings.
Specific embodiment
Fig. 1 and Fig. 2 are please referred to, in a kind of better embodiment of the invention, a kind of coal dust oxygen-enriched combustion system, including
Boiler 1, for coal dust mechanism, oxygen-enriched generating mechanism, be surrounded with discharge nozzle 2, the discharge nozzle on the inner sidewall of the boiler 1
2 open at one end, other end closing, the discharge nozzle 2 are described towards being provided with several openings 3 on the side wall at 1 center of boiler
It is open at 3 and is provided with nozzle 4；The oxygen-enriched mechanism that is produced into is connected by the open end of a transfer pipeline 5 and the discharge nozzle 2
It connects；Described for coal dust mechanism includes coal dust pot 6, conveying mechanism 7, and the coal dust pot 6 passes through the conveying mechanism 7 and the conveying
Pipeline 5 connects；The oxygen-enriched generating mechanism, which is used to convey oxygen-enriched air to boiler 1 and pushes coal dust, to be entered in the boiler 1.
In this embodiment, it is preferred that being provided with guide plate 8, the guiding at the opening 3 in the discharge nozzle 2
Plate 8 is used to guide the fluid in pipe to the opening 3；The discharge port of the coal dust pot 6 is funnel-shaped, the conveying mechanism
7 be spiral conveying mechanism, and the feeding inlet of the spiral conveying mechanism is located at the lower section of 6 discharge port of coal dust pot, the spiral
The discharge port of conveying mechanism is connected to by a connecting tube 9 with the transfer pipeline 5；The oxygen-enriched generating mechanism include blower 10,
Oxygen-enriched generator 11, roots blower 12, the blower 10, oxygen-enriched generator 11, roots blower 12 are sequentially connected, Roots's wind
The air outlet of machine 12 is connect with the transfer pipeline 5.
Working principle: blower 10 can turn air for conveying air, oxygen-enriched generator 11 into oxygen-enriched generator 11
Change oxygen-enriched air into, oxygen-enriched air is delivered to transfer pipeline 5 by roots blower 12, and at the same time, coal dust pot 6 passes through conveying mechanism
7 to 5 pulverized coal conveying of transfer pipeline, and coal dust can enter in discharge nozzle 2 under the drive of oxygen-enriched air, in the effect of guide plate 8
Under, coal dust and oxygen-enriched air pass through each nozzle 4 together and spray, then burn in boiler 1, distributed ejection form
It can make burning of the coal dust in boiler 1 more sufficiently thoroughly, it is more efficient.
Above description is the detailed description for the present invention preferably possible embodiments, but embodiment is not limited to this hair
Bright patent claim, it is all the present invention suggested by technical spirit under completed same changes or modifications change, should all belong to
In the covered the scope of the patents of the present invention.
Claims (4)
1. a kind of coal dust oxygen-enriched combustion system, including boiler, for coal dust mechanism, oxygen-enriched generating mechanism, it is characterised in that: the pot
Discharge nozzle is surrounded on the inner sidewall of furnace, the discharge nozzle open at one end, other end closing, the discharge nozzle is described in
Several openings are provided on the side wall at boiler center, the opening is provided with nozzle；The oxygen-enriched mechanism that is produced into is by one
Transfer pipeline is connect with the open end of the discharge nozzle；Described for coal dust mechanism includes coal dust pot, conveying mechanism, the coal dust pot
It is connect by the conveying mechanism with the transfer pipeline；The oxygen-enriched generating mechanism is used to convey oxygen-enriched air to boiler and push away
Powder of delivering coal enters in the boiler.
2. a kind of coal dust oxygen-enriched combustion system according to claim 1, it is characterised in that: opened in the discharge nozzle described
Guide plate is provided at mouthful, the guide plate is for guiding the fluid in pipe to the opening.
3. a kind of coal dust oxygen-enriched combustion system according to claim 1, it is characterised in that: the discharge port of the coal dust pot is in
Funnel-form, the conveying mechanism are spiral conveying mechanism, and the feeding inlet of the spiral conveying mechanism is located at coal dust pot discharging
The discharge port of the lower section of mouth, the spiral conveying mechanism is connected to by a connecting tube with the transfer pipeline.
4. a kind of coal dust oxygen-enriched combustion system according to claim 1, it is characterised in that: the oxygen-enriched generating mechanism includes
Blower, oxygen-enriched generator, roots blower, the blower, oxygen-enriched generator, roots blower are sequentially connected, the roots blower
Air outlet is connect with the transfer pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910751346.8A CN110332520A (en) | 2019-08-15 | 2019-08-15 | A kind of coal dust oxygen-enriched combustion system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910751346.8A CN110332520A (en) | 2019-08-15 | 2019-08-15 | A kind of coal dust oxygen-enriched combustion system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110332520A true CN110332520A (en) | 2019-10-15 |
Family
ID=68149666
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910751346.8A Pending CN110332520A (en) | 2019-08-15 | 2019-08-15 | A kind of coal dust oxygen-enriched combustion system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110332520A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111189060A (en) * | 2020-02-26 | 2020-05-22 | 杭州特盈能源技术发展有限公司 | Method for conveying pulverized coal by oxygen-enriched air |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1434247A (en) * | 2003-02-27 | 2003-08-06 | 上海交通大学 | Low nitrogen oxides sectional air pipe line system |
| CN201439048U (en) * | 2009-05-12 | 2010-04-21 | 苏州科德技研有限公司 | Pipeline type high dispersing airflow reaction vessel |
| CN204986991U (en) * | 2015-09-17 | 2016-01-20 | 郑州鼎力新能源技术有限公司 | Guide plate suitable for buggy stove |
| CN208652539U (en) * | 2018-07-09 | 2019-03-26 | 高藤贵 | A kind of coal dust oxygen-enriched combustion system |
| CN109855421A (en) * | 2019-01-11 | 2019-06-07 | 丰镇市新太新材料科技有限公司 | A kind of energy saving rotary kiln of high carbon ferro-chrome production |
| CN210267198U (en) * | 2019-08-15 | 2020-04-07 | 南宁方力电气有限公司 | Pulverized coal oxygen-enriched combustion system |
-
2019
- 2019-08-15 CN CN201910751346.8A patent/CN110332520A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1434247A (en) * | 2003-02-27 | 2003-08-06 | 上海交通大学 | Low nitrogen oxides sectional air pipe line system |
| CN201439048U (en) * | 2009-05-12 | 2010-04-21 | 苏州科德技研有限公司 | Pipeline type high dispersing airflow reaction vessel |
| CN204986991U (en) * | 2015-09-17 | 2016-01-20 | 郑州鼎力新能源技术有限公司 | Guide plate suitable for buggy stove |
| CN208652539U (en) * | 2018-07-09 | 2019-03-26 | 高藤贵 | A kind of coal dust oxygen-enriched combustion system |
| CN109855421A (en) * | 2019-01-11 | 2019-06-07 | 丰镇市新太新材料科技有限公司 | A kind of energy saving rotary kiln of high carbon ferro-chrome production |
| CN210267198U (en) * | 2019-08-15 | 2020-04-07 | 南宁方力电气有限公司 | Pulverized coal oxygen-enriched combustion system |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111189060A (en) * | 2020-02-26 | 2020-05-22 | 杭州特盈能源技术发展有限公司 | Method for conveying pulverized coal by oxygen-enriched air |
| CN111189060B (en) * | 2020-02-26 | 2022-02-15 | 杭州特盈能源技术发展有限公司 | Method for conveying pulverized coal by oxygen-enriched air |
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