CN106196124A - A kind of coal-burning boiler assembly reducing smoke evacuation oxygen content - Google Patents
A kind of coal-burning boiler assembly reducing smoke evacuation oxygen content Download PDFInfo
- Publication number
- CN106196124A CN106196124A CN201610702575.7A CN201610702575A CN106196124A CN 106196124 A CN106196124 A CN 106196124A CN 201610702575 A CN201610702575 A CN 201610702575A CN 106196124 A CN106196124 A CN 106196124A
- Authority
- CN
- China
- Prior art keywords
- coal
- boiler
- ash
- conducting oil
- oxygen content
- 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
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Classifications
-
- 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
- F23J15/006—Layout of treatment plant
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
- F22B1/00—Methods of steam generation characterised by form of heating method
- F22B1/02—Methods of steam generation characterised by form of heating method by exploitation of the heat content of hot heat carriers
- F22B1/18—Methods of steam generation characterised by form of heating method by exploitation of the heat content of hot heat carriers the heat carrier being a hot gas, e.g. waste gas such as exhaust gas of internal-combustion engines
-
- 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
- F23J15/022—Arrangements of devices for treating smoke or fumes of purifiers, e.g. for removing noxious material for removing solid particulate material from the gasflow
- F23J15/025—Arrangements of devices for treating smoke or fumes of purifiers, e.g. for removing noxious material for removing solid particulate material from the gasflow using filters
-
- 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
-
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J2217/00—Intercepting solids
- F23J2217/10—Intercepting solids by filters
- F23J2217/101—Baghouse type
-
- 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
- F23L2900/00—Special arrangements for supplying or treating air or oxidant for combustion; Injecting inert gas, water or steam into the combustion chamber
- F23L2900/15043—Preheating combustion air by heat recovery means located in the chimney, e.g. for home heating devices
-
- 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)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Air Supply (AREA)
Abstract
The invention discloses a kind of coal-burning boiler assembly reducing smoke evacuation oxygen content, including: coal burning heat-conducting oil boiler and air-introduced machine, it is provided with smoke exhaust pipe between the air inlet of described air-introduced machine and the gas outlet of coal burning heat-conducting oil boiler to be connected, the exhaust outlet of described air-introduced machine is additionally provided with a drainage tube, the end of described drainage tube has been arranged in parallel gas-adding pipe and defeated ash trachea, described gas-adding pipe end is connected with the burner hearth of coal burning heat-conducting oil boiler, it is provided with fine ash bucket on described coal burning heat-conducting oil boiler, ash adding tube is used to be connected between outlet and the burner hearth of coal burning heat-conducting oil boiler of described fine ash bucket, described defeated ash trachea is connected with the side of ash adding tube, it is in series with sack cleaner on described smoke exhaust pipe.By the way, the coal-burning boiler assembly reducing smoke evacuation oxygen content of the present invention, by using flue gas recirculation blower fan backflow part of smoke, utilize fine ash bucket that a part of flammable fine ash is sprayed into burner hearth and burn further.
Description
Technical field
The present invention relates to discharged from coal-fired boiler field, particularly relate to a kind of coal-burning boiler group reducing smoke evacuation oxygen content
Part.
Background technology
Along with increasing the weight of of environmental pollution, boiler smoke discharge standard is also improving, and puies forward target in fire coal boiler fume discharge
Under overall situation, fume emission requires: dust concentration≤30mg/m3, SO2 concentration≤200mg/m3, NOx concentration≤200mg/m3.
Coal-burning boiler multipurpose cloth bag dust collector and desulfurizing tower carry out discharge purification at present, but owing to boiler heat supplying load is given birth to
The impact produced, sometimes the least, the most specified 50--60%, the old boiler improvement of part, boiler body leaks out relatively
Bigger so that boiler export and chimney breast oxygen content respectively reach 13--14% and 15--16%, cause fume emission to exceed standard, carry
Mark is transformed unsuccessfully.
Summary of the invention
The technical problem that present invention mainly solves is to provide a kind of coal-burning boiler assembly reducing smoke evacuation oxygen content, and it is right to promote
The adaptability produced, reduces fume emission.
For solving above-mentioned technical problem, the technical scheme that the present invention uses is: provide one to reduce smoke evacuation oxygen content
Coal-burning boiler assembly, including coal burning heat-conducting oil boiler and air-introduced machine, the air inlet of described air-introduced machine and coal burning heat-conducting oil boiler
Gas outlet between be provided with smoke exhaust pipe and be connected, the exhaust outlet of described air-introduced machine is connected with outside chimney, described air inducing
The exhaust outlet of machine is additionally provided with a drainage tube, and described drainage tube is provided with flue gas recirculation blower fan, the end of described drainage tube
Being arranged in parallel gas-adding pipe and defeated ash trachea, described gas-adding pipe end is connected with the burner hearth of coal burning heat-conducting oil boiler, described combustion
It is provided with fine ash bucket on coal heat conducting oil boiler, uses between outlet and the burner hearth of coal burning heat-conducting oil boiler of described fine ash bucket and add ash
Pipe is connected, and described defeated ash trachea is connected with the side of ash adding tube, and described smoke exhaust pipe is in series with sack cleaner, described cloth
The outlet of bag dust collector is provided with batcher and is connected with the top of fine ash bucket.
In a preferred embodiment of the present invention, described smoke exhaust pipe is sequentially connected in series have surplus heat steam boiler and air preheat
Device, the outlet of described air preheater is provided with air inlet pipe and is connected with the air inlet of coal burning heat-conducting oil boiler.
In a preferred embodiment of the present invention, described air inlet pipe is provided with aerator.
In a preferred embodiment of the present invention, described ash adding tube is provided with the 3rd control valve.
In a preferred embodiment of the present invention, described gas-adding pipe is provided with the first control valve, described defeated ash trachea
On be provided with the second control valve.
The invention has the beneficial effects as follows: a kind of coal-burning boiler assembly reducing smoke evacuation oxygen content that the present invention points out, permissible
Under different combustion conditions, reduce boiler exhaust gas oxygen content, make flue dust, SO2 and NOx emission in boiler smoke air stripping mark transformation process
Up to standard, by using flue gas recirculation blower fan backflow part of smoke, utilize fine ash bucket that a part of flammable fine ash is sprayed into burner hearth and enter
One step burning, by valve opening size and the FREQUENCY CONTROL of flue gas recirculation blower fan, according to producing practical situation and fume emission
Requirement is adjusted, and motility is high, reduces boiler exhaust gas oxygen content, and reduces energy consumption further, improves boiler efficiency, reduces
Smoke emissioning concentration, finally guarantees that fume emission is up to standard.
Accompanying drawing explanation
For the technical scheme being illustrated more clearly that in the embodiment of the present invention, in embodiment being described below required for make
Accompanying drawing be briefly described, it should be apparent that, below describe in accompanying drawing be only some embodiments of the present invention, for
From the point of view of those of ordinary skill in the art, on the premise of not paying creative work, it is also possible to obtain other according to these accompanying drawings
Accompanying drawing, wherein:
Fig. 1 is the structural representation of a kind of coal-burning boiler assembly one preferred embodiment reducing smoke evacuation oxygen content of the present invention.
Detailed description of the invention
Technical scheme in the embodiment of the present invention will be clearly and completely described below, it is clear that described enforcement
Example is only a part of embodiment of the present invention rather than whole embodiments.Based on the embodiment in the present invention, this area is common
All other embodiments that technical staff is obtained under not making creative work premise, broadly fall into the model of present invention protection
Enclose.
Referring to Fig. 1, the embodiment of the present invention includes:
A kind of coal-burning boiler assembly reducing smoke evacuation oxygen content, including: coal burning heat-conducting oil boiler 1 and air-introduced machine 5, described air-introduced machine
It is provided with smoke exhaust pipe 11 between the air inlet of 5 and the gas outlet of coal burning heat-conducting oil boiler 1 to be connected, the air draft of described air-introduced machine 5
Mouth is connected with outside chimney, and described smoke exhaust pipe 11 is sequentially connected in series the steam boiler 2 that has surplus heat, air preheater 3 and cloth bag
Cleaner unit 4, waste heat steam boiler 2 improves heat utilization ratio, and sack cleaner 4 filters, and reduces soot emissions.
The exhaust outlet of described air-introduced machine 5 is additionally provided with a drainage tube 7, and described drainage tube 7 is provided with flue gas recirculation wind
Machine 71, the end of described drainage tube 7 has been arranged in parallel gas-adding pipe 8 and defeated ash trachea 9, described gas-adding pipe 8 end and coal-fired heat conduction
The burner hearth of thermo oil boiler 1 is connected, and described coal burning heat-conducting oil boiler 1 is provided with fine ash bucket 6, the outlet of described fine ash bucket 6 and combustion
Ash adding tube 61 is used to be connected between the burner hearth of coal heat conducting oil boiler 1.The outlet of described sack cleaner 4 is provided with batcher 41
And be connected with the top of fine ash bucket 6, the part fine ash in sack cleaner 4 is delivered in fine ash bucket 6, described defeated ash trachea
9 are connected with ash adding tube 61 side, are sprayed into the burner hearth of coal burning heat-conducting oil boiler 1 by ash adding tube 61, again burn.
The outlet of described air preheater 3 is provided with air inlet pipe 31 and is connected with the air inlet of coal burning heat-conducting oil boiler 1, institute
Stating and be provided with aerator 32 in air inlet pipe 31, the air entered can be heated by air preheater 3, promotes coal burning heat-conducting oil
The work efficiency of boiler 1, aerator 32 can regulate air inflow, flexible operation.
The 3rd control valve 62 it is provided with, by using flue gas recirculation blower fan 71 to reflux a part of cigarette on described ash adding tube 61
Gas, utilizes a part of flammable fine ash of fine ash bucket 6 to spray into burner hearth and burns further, improving combustion efficiency.
Being provided with the first control valve 81 on described gas-adding pipe 8, backflow part of smoke enters coal burning heat-conducting oil boiler 1 and joins
With burning so that burning is more abundant, described defeated ash trachea 9 is provided with the second control valve 91, controls to enter ash adding tube 61
Air-flow, combine with the actual condition of coal burning heat-conducting oil boiler 1, easy to adjust, improve coal burning heat-conducting oil boiler 1 work effect
Rate, reduces exhaust emission, beneficially emission compliance.
The foregoing is only embodiments of the invention, not thereby limit the scope of the claims of the present invention, every utilize this
Equivalent structure or equivalence flow process that bright description is made convert, or are directly or indirectly used in other relevant technology neck
Territory, is the most in like manner included in the scope of patent protection of the present invention.
Claims (5)
1. reduce a coal-burning boiler assembly for smoke evacuation oxygen content, including: coal burning heat-conducting oil boiler and air-introduced machine, described air-introduced machine
Air inlet and the gas outlet of coal burning heat-conducting oil boiler between be provided with smoke exhaust pipe and be connected, the exhaust outlet of described air-introduced machine is with outer
The chimney in portion is connected, it is characterised in that the exhaust outlet of described air-introduced machine is additionally provided with a drainage tube, and described drainage tube sets
Be equipped with flue gas recirculation blower fan, the end of described drainage tube be arranged in parallel gas-adding pipe and defeated ash trachea, described gas-adding pipe end with
The burner hearth of coal burning heat-conducting oil boiler is connected, and described coal burning heat-conducting oil boiler is provided with fine ash bucket, the outlet of described fine ash bucket
And using ash adding tube to be connected between the burner hearth of coal burning heat-conducting oil boiler, described defeated ash trachea is connected with the side of ash adding tube,
Be in series with sack cleaner on described smoke exhaust pipe, the outlet of described sack cleaner be provided with batcher and with the top of fine ash bucket
It is connected.
The coal-burning boiler assembly reducing smoke evacuation oxygen content the most according to claim 1, it is characterised in that on described smoke exhaust pipe
Being sequentially connected in series have surplus heat steam boiler and air preheater, the outlet of described air preheater is provided with air inlet pipe and coal-fired heat conduction
The air inlet of thermo oil boiler is connected.
The coal-burning boiler assembly reducing smoke evacuation oxygen content the most according to claim 2, it is characterised in that in described air inlet pipe
It is provided with aerator.
The coal-burning boiler assembly reducing smoke evacuation oxygen content the most according to claim 1, it is characterised in that on described ash adding tube
It is provided with the 3rd control valve.
The coal-burning boiler assembly reducing smoke evacuation oxygen content the most according to claim 1, it is characterised in that on described gas-adding pipe
It is provided with the first control valve, described defeated ash trachea is provided with the second control valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610702575.7A CN106196124A (en) | 2016-08-23 | 2016-08-23 | A kind of coal-burning boiler assembly reducing smoke evacuation oxygen content |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610702575.7A CN106196124A (en) | 2016-08-23 | 2016-08-23 | A kind of coal-burning boiler assembly reducing smoke evacuation oxygen content |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106196124A true CN106196124A (en) | 2016-12-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610702575.7A Pending CN106196124A (en) | 2016-08-23 | 2016-08-23 | A kind of coal-burning boiler assembly reducing smoke evacuation oxygen content |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106196124A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109028032A (en) * | 2018-06-13 | 2018-12-18 | 安徽长城锅炉制造有限公司 | A kind of boiler afterheat recycling device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4592293A (en) * | 1983-11-14 | 1986-06-03 | Hitachi, Ltd. | Method of controlling an air heater of a coal-fired boiler |
| CN1041646A (en) * | 1988-08-31 | 1990-04-25 | 株式会社荏原制作所 | Composite circulation fluidizing bed boiler |
| CN1209520A (en) * | 1997-07-16 | 1999-03-03 | 三菱重工业株式会社 | Apparatus and method for reducing oxygen-content in waste gas of boiler |
| CN2397376Y (en) * | 1999-10-28 | 2000-09-20 | 徐锦弟 | Smoke-eliminating dust-removing sulphur removal frid type directional dust remover for boiler |
| CN101164661A (en) * | 2006-10-19 | 2008-04-23 | 姜鹏 | Flyash mixing desulfurizing-agent back-blowing secondary-burning high-efficiency energy-saving desulfurizing dust-removing method and equipment thereof |
| CN102297439A (en) * | 2011-07-05 | 2011-12-28 | 哈尔滨工业大学 | Ultra-low temperature smoke-exhausting and energy-saving boiler |
| CN102840592A (en) * | 2012-09-10 | 2012-12-26 | 中国华能集团清洁能源技术研究院有限公司 | Low-temperature smoke recirculation system |
| CN105299626A (en) * | 2015-11-02 | 2016-02-03 | 上海发电设备成套设计研究院 | Combustion system and combustion method for retarding slagging and contamination of high-alkali coal boiler for combustion |
| CN205402691U (en) * | 2016-02-29 | 2016-07-27 | 山东王晁煤电集团热电有限公司 | Boiler |
| CN206055660U (en) * | 2016-08-23 | 2017-03-29 | 苏州泰盛新绿节能环保科技有限公司 | A kind of coal-burning boiler component for reducing smoke evacuation oxygen content |
-
2016
- 2016-08-23 CN CN201610702575.7A patent/CN106196124A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4592293A (en) * | 1983-11-14 | 1986-06-03 | Hitachi, Ltd. | Method of controlling an air heater of a coal-fired boiler |
| CN1041646A (en) * | 1988-08-31 | 1990-04-25 | 株式会社荏原制作所 | Composite circulation fluidizing bed boiler |
| CN1209520A (en) * | 1997-07-16 | 1999-03-03 | 三菱重工业株式会社 | Apparatus and method for reducing oxygen-content in waste gas of boiler |
| CN2397376Y (en) * | 1999-10-28 | 2000-09-20 | 徐锦弟 | Smoke-eliminating dust-removing sulphur removal frid type directional dust remover for boiler |
| CN101164661A (en) * | 2006-10-19 | 2008-04-23 | 姜鹏 | Flyash mixing desulfurizing-agent back-blowing secondary-burning high-efficiency energy-saving desulfurizing dust-removing method and equipment thereof |
| CN102297439A (en) * | 2011-07-05 | 2011-12-28 | 哈尔滨工业大学 | Ultra-low temperature smoke-exhausting and energy-saving boiler |
| CN102840592A (en) * | 2012-09-10 | 2012-12-26 | 中国华能集团清洁能源技术研究院有限公司 | Low-temperature smoke recirculation system |
| CN105299626A (en) * | 2015-11-02 | 2016-02-03 | 上海发电设备成套设计研究院 | Combustion system and combustion method for retarding slagging and contamination of high-alkali coal boiler for combustion |
| CN205402691U (en) * | 2016-02-29 | 2016-07-27 | 山东王晁煤电集团热电有限公司 | Boiler |
| CN206055660U (en) * | 2016-08-23 | 2017-03-29 | 苏州泰盛新绿节能环保科技有限公司 | A kind of coal-burning boiler component for reducing smoke evacuation oxygen content |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109028032A (en) * | 2018-06-13 | 2018-12-18 | 安徽长城锅炉制造有限公司 | A kind of boiler afterheat recycling device |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20161207 |
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| RJ01 | Rejection of invention patent application after publication |