CN1069111A - Coal powder burner - Google Patents
Coal powder burner Download PDFInfo
- Publication number
- CN1069111A CN1069111A CN 92105870 CN92105870A CN1069111A CN 1069111 A CN1069111 A CN 1069111A CN 92105870 CN92105870 CN 92105870 CN 92105870 A CN92105870 A CN 92105870A CN 1069111 A CN1069111 A CN 1069111A
- Authority
- CN
- China
- Prior art keywords
- coal
- links
- pipeline
- steam generator
- burner
- 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
- 239000003245 coal Substances 0.000 title claims abstract description 59
- 239000000843 powder Substances 0.000 title claims abstract description 12
- 239000003077 lignite Substances 0.000 claims abstract description 9
- 238000009423 ventilation Methods 0.000 claims abstract description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 8
- 230000008676 import Effects 0.000 claims abstract 2
- 230000000903 blocking effect Effects 0.000 claims description 6
- 230000007246 mechanism Effects 0.000 claims description 6
- 238000002485 combustion reaction Methods 0.000 abstract description 4
- 239000000203 mixture Substances 0.000 description 5
- 239000000446 fuel Substances 0.000 description 4
- 239000002912 waste gas Substances 0.000 description 3
- 239000012159 carrier gas Substances 0.000 description 2
- 239000002817 coal dust Substances 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23K—FEEDING FUEL TO COMBUSTION APPARATUS
- F23K1/00—Preparation of lump or pulverulent fuel in readiness for delivery to combustion apparatus
- F23K1/04—Heating fuel prior to delivery to combustion apparatus
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Drying Of Solid Materials (AREA)
- Solid Fuels And Fuel-Associated Substances (AREA)
Abstract
A kind of coal powder burner that is used for steam generator, its burning water content higher coal, especially brown coal.Its raw coal coal bunker, one or several boulder crusher, one or several coal dryer, one or several coal pulverizer, link to each other successively, coal pulverizer links to each other with the burning of steam generator is suitable by power transportation pipe, the steam outlet of coal dryer links to each other by the import of pipeline with the ventilation coal pulverizer with the moisture-free coal outlet, the ventilation coal pulverizer links to each other by the hot gas duct of pipeline with the air preheater back, or link to each other with the discharge duct of steam generator back, its outlet links to each other with coal burner in the combustion chamber that is contained in steam generator by power transportation pipe.
Description
The present invention relates to a kind of coal powder burner that is used for steam generator, its burning water content higher coal, especially brown coal.Its raw coal coal bunker, one or several boulder crusher, one or several coal dryer, one or several coal pulverizer link to each other successively, and coal pulverizer links to each other with the burner of steam generator by power transportation pipe.
DE-OS3433314 discloses the coal powder burner of this class.The shortcoming of this existing coal powder burner is that it can not satisfy the regulation of current official to the low NOx of oil fuel.Only contain the part water vapour in the raw coal in the fuel mixture, burning the time make the temperature of combustion zone very high (about 1300 ℃) thus formed pollutant NOx.In addition, high ignition temperature like this also makes the very easily slagging scorification of oral area of burner.
Purpose of the present invention just provides a kind of this paper and has just begun described coal powder burner, and it had both kept the advantage of outside moisture-free coal, has avoided described shortcoming simultaneously again.The feature of claim 1 can reach this purpose according to the present invention.
Another kind of form of the present invention is that coal pulverizer links to each other with discharge duct before air preheater rather than afterwards.
Because water vapour is transported to coal burner with the mixture of forming by coal dust and carrier gas, formed a kind of fuel mixture, it is similar to the existing fuel mixture that has the brown coal coal powder burner of exhaust return pipe and mill coal drying machine to a great extent.Temperature lower comparatively speaking (about 1050 ℃～1150 ℃) during burning, this has just eliminated the NOx that is caused by heat basically.In addition, water vapour in the coal mill system and the waste gas that returns keep inertia, and low like this ignition temperature has also been avoided the slagging scorification phenomenon of burner to a great extent.
The present invention combines the advantage and the high advantage of moisture-free coal efficient of the few brown coal coal powder burner of existing NOx product.
To at length explain the present invention with reference to the accompanying drawings below.
Accompanying drawing is the schematic diagram of burner of the present invention.
For simplicity, only explain in several ventilation coal pulverizers one relation with system.
Be boulder crusher 3 below the outlet of brown coal powder coal bunker 1, moist brown coal are by entering coal dryer 5 by pipeline 2,4 again after it.The waste gas of steam turbine gives coal dryer 5 heating by pipeline 6.From coal dryer 5 come out by coarse crushing and dry brown coal by pipeline 8 enter ventilation coal pulverizer 9, pipeline 20 that blocking mechanism 23 is housed is communicated with the hot gas duct 19 of air preheater 15 with the coal pulverizer 9 of ventilating.Fresh air by pipeline 18 be delivered to air preheater 15, pipeline 17 that blocking mechanism 22 and air blast 24 be housed links to each other ventilation coal pulverizer 9 with discharge duct 16 after the air preheater 15.
The water vapour that produces during heating enters ventilation coal pulverizer 9 by pipeline 7.This mixture of being made up of hot-air, water vapour and/or the waste gas that returns promptly is the carrier gas of dry coal dust, and it enters the coal burner 12 of the combustion chamber 13 of steam generator 21 by pipeline 10 and 11.
Description of drawings:
1 brown coal coal bunker
2 pipelines
3 boulder crushers
4 pipelines
5 coal dryers
6 pipelines
7 pipelines
8 pipelines
9 ventilation coal pulverizers
10 pipelines
11 pipelines
12 burners;
13 combustion chambers
14 pipelines
15 air preheaters
16 pipelines
17 pipelines
18 pipelines
19 hot gas ducts
20 pipelines
21 steam generators
22 blocking mechanisms
23 blocking mechanisms
24 air blasts
Claims (2)
1, a kind of coal powder burner that is used for steam generator, its burning water content higher coal, especially brown coal.Its raw coal coal bunker, one or several boulder crusher, one or several coal dryer, one or several coal pulverizer link to each other successively, coal pulverizer links to each other with the burner of steam generator by power transportation pipe, it is characterized in that, the steam outlet of coal dryer (5) links to each other with (8) import with ventilation coal pulverizer (9) by pipeline (7) with the moisture-free coal outlet, and ventilation coal pulverizer (9) links to each other with (19) with pipeline (16) with (20) by the pipeline (17) that blocking mechanism (22) and (23) are housed.Its outlet links to each other with coal burner (12) in being contained in steam generator (21) combuster (13) by power transportation pipe (10) and (11).
2, coal powder burner as claimed in claim 1 is characterized in that, the pipeline (17) that blocking mechanism (22) are housed links to each other with pipeline (14).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE4124842.2 | 1991-07-26 | ||
| DE4124842A DE4124842A1 (en) | 1991-07-26 | 1991-07-26 | Steam boiler fired with pulverised brown coal - uses combustion gases to dry coal and reduce nitrous oxide content of gases discharged to atmosphere |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1069111A true CN1069111A (en) | 1993-02-17 |
Family
ID=6437097
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 92105870 Pending CN1069111A (en) | 1991-07-26 | 1992-07-18 | Coal powder burner |
Country Status (4)
| Country | Link |
|---|---|
| CN (1) | CN1069111A (en) |
| DE (1) | DE4124842A1 (en) |
| GR (1) | GR1003341B (en) |
| PL (1) | PL168781B1 (en) |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008019555A1 (en) * | 2006-08-09 | 2008-02-21 | Longgen Ma | A coal powder-turbine generator and a method for producing coal powder tw0-phases fuel |
| WO2009092236A1 (en) * | 2008-01-16 | 2009-07-30 | Jianfeng Han | An igniting and stable combusting device and its usage method of pulverized coal boiler |
| CN102226530A (en) * | 2011-06-10 | 2011-10-26 | 华能吉林发电有限公司九台电厂 | Ignition method for power station boiler pulverized coal fuel |
| CN102588953A (en) * | 2012-03-05 | 2012-07-18 | 江苏大峘集团有限公司 | Self-circulation type pulverized coal furnace device |
| CN102884377A (en) * | 2010-05-14 | 2013-01-16 | 株式会社神户制钢所 | Method for preventing ignition and device for preventing ignition in pulverizer |
| CN102893090A (en) * | 2010-05-17 | 2013-01-23 | 株式会社神户制钢所 | Ignition prevention method and ignition prevention apparatus for crusher |
| CN103688121A (en) * | 2011-07-19 | 2014-03-26 | 巴布考克日立株式会社 | Dry conveying device and thermal power generation system provided with the dry conveying device |
| CN104990097A (en) * | 2015-06-15 | 2015-10-21 | 上海发电设备成套设计研究院 | Method for improving stain coking of burning high-sodium coal |
| CN106322402A (en) * | 2015-06-30 | 2017-01-11 | 许成荫 | Sludge biomass fuel combustion equipment system |
| CN111167566A (en) * | 2020-02-10 | 2020-05-19 | 北京蓝爱迪电力技术有限公司 | Method and device for improving coal mill output based on lignite pulverizing system |
| CN112696657A (en) * | 2020-12-01 | 2021-04-23 | 北方联合电力有限责任公司包头第一热电厂 | Boiler blowing-out control system |
| CN113685837A (en) * | 2021-08-24 | 2021-11-23 | 西安西热锅炉环保工程有限公司 | A kind of multi-media dry biomass directly coupled power generation system and method |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19722070C5 (en) * | 1997-05-27 | 2008-06-26 | InfraServ GmbH & Co. Höchst KG | Process for the low-NOx burning of hard coal in dry steamed steam generators |
| DE10060749C1 (en) * | 2000-12-07 | 2002-07-25 | Alstom Power Boiler Gmbh | Coal-fired boiler operating method has drying of coal dust provided by extracted combustion gas selectively cooled via mixing with cooling gas or water |
| CN103343954B (en) * | 2013-07-29 | 2015-04-15 | 华北电力大学 | Quality-improved lignite combustion or blending combustion system |
| CN105135459B (en) * | 2015-09-02 | 2017-05-31 | 华北电力科学研究院有限责任公司 | It is a kind of to calculate the method that coal pulverizer mixes burning brown coal ability |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4411204A (en) * | 1981-12-07 | 1983-10-25 | Combustion Engineering, Inc. | Method of firing a pulverized fuel-fired steam generator |
| JPS58182004A (en) * | 1982-04-20 | 1983-10-24 | Ishikawajima Harima Heavy Ind Co Ltd | Low nitrogen oxide combustion method for pulverized coal |
| DE3433313A1 (en) * | 1984-09-11 | 1986-03-20 | Rudolf Dr. 6800 Mannheim Wieser | Integrated coal-drying device for steam boilers or fluidised-bed furnaces |
| DD279937B5 (en) * | 1989-02-06 | 1993-08-19 | Ver Energiewerke Ag | DEVICE FOR DRYING, GRINDING AND BURNING BALLASTIC FUELS |
-
1991
- 1991-07-26 DE DE4124842A patent/DE4124842A1/en active Granted
-
1992
- 1992-07-17 GR GR920100316A patent/GR1003341B/en unknown
- 1992-07-18 CN CN 92105870 patent/CN1069111A/en active Pending
- 1992-07-24 PL PL29540692A patent/PL168781B1/en unknown
Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100494659C (en) * | 2006-08-09 | 2009-06-03 | 马龙根 | Coal powder gas turbine generation system and process for producing coal powder two-phase flow fuel |
| WO2008019555A1 (en) * | 2006-08-09 | 2008-02-21 | Longgen Ma | A coal powder-turbine generator and a method for producing coal powder tw0-phases fuel |
| WO2009092236A1 (en) * | 2008-01-16 | 2009-07-30 | Jianfeng Han | An igniting and stable combusting device and its usage method of pulverized coal boiler |
| CN102884377B (en) * | 2010-05-14 | 2016-04-27 | 株式会社神户制钢所 | Fire prevention method and fire prevention device of pulverizer |
| CN102884377A (en) * | 2010-05-14 | 2013-01-16 | 株式会社神户制钢所 | Method for preventing ignition and device for preventing ignition in pulverizer |
| CN102893090B (en) * | 2010-05-17 | 2015-04-15 | 株式会社神户制钢所 | Ignition prevention method and ignition prevention apparatus for crusher |
| CN102893090A (en) * | 2010-05-17 | 2013-01-23 | 株式会社神户制钢所 | Ignition prevention method and ignition prevention apparatus for crusher |
| CN102226530A (en) * | 2011-06-10 | 2011-10-26 | 华能吉林发电有限公司九台电厂 | Ignition method for power station boiler pulverized coal fuel |
| CN103688121A (en) * | 2011-07-19 | 2014-03-26 | 巴布考克日立株式会社 | Dry conveying device and thermal power generation system provided with the dry conveying device |
| CN102588953B (en) * | 2012-03-05 | 2014-07-16 | 江苏大峘集团有限公司 | Self-circulation type pulverized coal furnace device |
| CN102588953A (en) * | 2012-03-05 | 2012-07-18 | 江苏大峘集团有限公司 | Self-circulation type pulverized coal furnace device |
| CN104990097A (en) * | 2015-06-15 | 2015-10-21 | 上海发电设备成套设计研究院 | Method for improving stain coking of burning high-sodium coal |
| CN106322402A (en) * | 2015-06-30 | 2017-01-11 | 许成荫 | Sludge biomass fuel combustion equipment system |
| CN111167566A (en) * | 2020-02-10 | 2020-05-19 | 北京蓝爱迪电力技术有限公司 | Method and device for improving coal mill output based on lignite pulverizing system |
| CN112696657A (en) * | 2020-12-01 | 2021-04-23 | 北方联合电力有限责任公司包头第一热电厂 | Boiler blowing-out control system |
| CN113685837A (en) * | 2021-08-24 | 2021-11-23 | 西安西热锅炉环保工程有限公司 | A kind of multi-media dry biomass directly coupled power generation system and method |
Also Published As
| Publication number | Publication date |
|---|---|
| PL168781B1 (en) | 1996-04-30 |
| PL295406A1 (en) | 1993-04-05 |
| GR1003341B (en) | 2000-03-20 |
| GR920100316A (en) | 1993-05-24 |
| DE4124842C2 (en) | 1993-05-13 |
| DE4124842A1 (en) | 1993-01-28 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C01 | Deemed withdrawal of patent application (patent law 1993) | ||
| WD01 | Invention patent application deemed withdrawn after publication |