CN101592337A - Internal combustion ignition pulverized coal burner - Google Patents
Internal combustion ignition pulverized coal burner Download PDFInfo
- Publication number
- CN101592337A CN101592337A CNA2008101236995A CN200810123699A CN101592337A CN 101592337 A CN101592337 A CN 101592337A CN A2008101236995 A CNA2008101236995 A CN A2008101236995A CN 200810123699 A CN200810123699 A CN 200810123699A CN 101592337 A CN101592337 A CN 101592337A
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- CN
- China
- Prior art keywords
- overheavy firing
- coal dust
- firing chamber
- inspissator
- internal combustion
- 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.)
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D1/00—Burners for combustion of pulverulent fuel
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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
- F23C3/00—Combustion apparatus characterised by the shape of the combustion chamber
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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
- F23C2900/00—Special features of, or arrangements for combustion apparatus using fluid fuels or solid fuels suspended in air; Combustion processes therefor
- F23C2900/03005—Burners with an internal combustion chamber, e.g. for obtaining an increased heat release, a high speed jet flame or being used for starting the combustion
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D2201/00—Burners adapted for particulate solid or pulverulent fuels
- F23D2201/20—Fuel flow guiding devices
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
Abstract
Internal combustion ignition pulverized coal burner of the present invention is applicable to the coal dust to be the boiler of fuel.It comprises an airduct that links to each other with coal dust overheavy firing chamber, burning hot source of high intensity points and overheavy firing chamber, it is indoor that high intensity points burning hot source inclination or horizontal axis insert the coal dust overheavy firing, the porch of coal dust overheavy firing chamber is provided with annular inspissator, the indoor dog dentition formula inspissator that is provided with of overheavy firing.Utilize the double burner combustion coal dust of deciding of igniting pulverized coal burner or igniting pulverized coal burner to replace fuel oil, finish ignition of the boiler and steady combustion work, this internal combustion ignition pulverized coal burner coal dust burnout rate reaches more than 85%, rate of economizing gasoline is greater than 90%, wall temperature generally can stably be controlled at below 700 ℃, the highlyest be no more than 750 ℃, it is simple in structure, various, it is effective to light a fire, be adapted to many coals, many type of furnaces, not slagging scorification of combustion chamber, do not ablate, resistance to wear, reliable, small investment, operating cost are low, have practicality widely.
Description
Technical field
The present invention relates to internal combustion ignition pulverized coal burner, being particularly useful for the coal dust is the boiler of fuel.
Background technology
General sparking mode was when generating plant pulverized coal boiler started at present: put oil burner with igniter earlier and (be commonly called as oil gun, single Oil Gun is 0.8～5t/h) to heat up, boost, when each relevant parameter of boiler reaches the requirement of throwing powder, start pulverized coal preparation system and coal burner, realize load carrying; When boiler load is reduced to 50% left and right sides, also must throws the steady combustion of oil and could guarantee that boiler normally moves.Once with the about 100t of oil, during peak regulation, it is combustion-supporting also need to start the oil gun oil spout for a 300MW fired power generating unit pulverized-coal fired boiler, cold start.Annual station boiler open stove, blowing out, surely combustion and combustion-supporting need consume a large amount of oily resources.
Summary of the invention
The objective of the invention is to overcome the weak point in the prior art, provide a kind of simple in structure, various, it is effective to light a fire, and saves the internal combustion ignition pulverized coal burner of fuel oil.
For achieving the above object, coal burner of the present invention, comprise an airduct that links to each other with coal dust overheavy firing chamber, burning hot source of high intensity points and overheavy firing chamber, it is indoor that burning hot source inclination of described high intensity points or horizontal axis insert the coal dust overheavy firing, the porch of coal dust overheavy firing chamber is provided with annular inspissator, the indoor dog dentition formula inspissator that is provided with of described overheavy firing.
Indoor secondary combustion chamber and the three grades of combustion chambers of being provided with successively of described coal dust overheavy firing; Described coal dust overheavy firing chamber is provided with the air film airduct, and the inner tube wall of coal dust overheavy firing chamber is provided with air film air regulator mouth; Described coal dust overheavy firing chamber barrel is provided with the air film airduct, and the inner tube wall of coal dust overheavy firing chamber is provided with radiation rib; The inner tube wall of described coal dust overheavy firing chamber is provided with radiation rib, leaves the light wind of the air film mutually passage that links to each other with annular inspissator air inlet between inner tube wall and the outer tube wall.
Coal burner of the present invention utilizes the burning hot source of high intensity points, will be heated to the ignition temperature of coal dust by the primary wind and powder of coal burner in coal burner inside, make volatilization powder in the coal dust separate out rapidly and burn, simultaneously carbon granule is ignited, form the high temperature torch, injection enters burner hearth.Ignition temperature difference according to different coals; the coal dust overheavy firing chamber of coupling different structure and the burning hot source of high intensity points of different-energy; realization is heated to its ignition temperature with different coal dusts; promptly realize the lighting of bituminous coal, brown coal, meager coal, anthracite, mixed coal realized the protection to burner simultaneously.Compared with the prior art, exerting oneself of this internal combustion ignition pulverized coal burner can reach 2～20t/h.Size according to boiler capacity, dispose corresponding this internal combustion ignition pulverized coal burner of exerting oneself, utilize the double burner combustion coal dust of deciding of igniting pulverized coal burner or igniting pulverized coal burner to replace fuel oil, ignition of the boiler and steady combustion work be can finish, stove, blowing out, combustion-supporting, the purpose of throwing this saving of oil and alternative fuel oil when surely firing less opened thereby reach boiler.Through test, this internal combustion ignition pulverized coal burner coal dust burnout rate reaches more than 85%, and rate of economizing gasoline is greater than 90%, and wall temperature generally can stably be controlled at below 700 ℃, the highlyest is no more than 750 ℃, can guarantee the safety of burner; The performance of the former main burner in back of putting into operation is guaranteed substantially, does not find phenomenons such as overtemperature, slagging scorification, burning be bad, and the firing coal-dust effect is better when being applied to boiler startup.It is simple in structure, various, and it is effective to light a fire, and is adapted to many coals, many type of furnaces, guarantees not slagging scorification of combustion chamber, does not ablate, resistance to wears, reliable, and small investment, operating cost are low, have extensive applicability.
Description of drawings
Fig. 1 is fractional combustion structure coal dust overheavy firing cell structure figure of the present invention (angle-inserting type).
Fig. 2 is the fractional combustion structure coal dust overheavy firing cell structure figure (the slotting formula of axle) of invention.
Fig. 3 is the interior air film wind protection structure coal dust overheavy firing cell structure figure (angle-inserting type) of invention.
Fig. 4 is the interior air film wind protection structure coal dust overheavy firing cell structure figure (the slotting formula of axle) of invention.
Fig. 5 is the outer air film wind protection structure coal dust overheavy firing cell structure figure (angle-inserting type) of invention.
Fig. 6 is the outer air film wind protection structure coal dust overheavy firing cell structure figure (the slotting formula of axle) of invention.
Fig. 7 is the light phase air film wind protection structure coal dust overheavy firing cell structure figure (angle-inserting type) of invention.
Fig. 8 is the light phase air film wind protection structure coal dust overheavy firing cell structure figure (the slotting formula of axle) of invention.
Among the figure: 1, air channel, 2, annular inspissator, 3, the burning hot source of high intensity points, 4, the overheavy firing chamber, 5, secondary combustion chamber, 6, three grades of combustion chambers, 7, the air film airduct, 8, dog dentition formula inspissator, 9, air film air regulator mouth, 10, radiating fin, 11, light phase air film wind passage.
The specific embodiment
The invention will be further described below in conjunction with the embodiment in the accompanying drawing:
Embodiment one, shown in Figure 1, the fractional combustion structure: air channel 1 of straight tube shape is connected with coal dust overheavy firing chamber bolted, and the porch of coal dust overheavy firing chamber is provided with annular inspissator 2, and shrink at annular inspissator 2 middle parts, and it is horn-like that two ends are.Annular inspissator 2 inlets are connected with overheavy firing chamber 4, are provided with dog dentition formula inspissator 8 in the overheavy firing chamber 4; The outer wall of coal dust overheavy firing chamber is provided with oblique cutting and stretches into the burning hot source 3 of high intensity points in the overheavy firing chamber 4, and the rear portion of overheavy firing chamber 4 is connected with secondary combustion chamber 5 and three grades of combustion chambers 6 successively.The burning hot source 3 of high intensity points can be adopted: 1. oil burner, 2. gas burner, 3. plasma generator, 4. high temperature air.
Embodiment two, shown in Figure 2, the fractional combustion structure: air channel 1 of elbow-shaped is connected with coal dust overheavy firing chamber bolted, the porch of coal dust overheavy firing chamber is provided with annular inspissator 2, and annular inspissator 2 inlets are connected with overheavy firing chamber 4, are provided with dog dentition formula inspissator 8 in the overheavy firing chamber 4; The outer wall in an air channel 1 of elbow-shaped is provided with axial straight cutting and stretches into the burning hot source 3 of high intensity points in the overheavy firing chamber 4; The rear portion of overheavy firing chamber 4 is provided with secondary combustion chamber 5 and three grades of combustion chambers 6 successively.
Embodiment three, shown in Figure 3, interior air film wind protection structure: air channel 1 of straight tube shape is connected with coal dust overheavy firing chamber bolted, the porch of coal dust overheavy firing chamber is provided with annular inspissator 2, annular inspissator 2 inlets are connected with overheavy firing chamber 4, are provided with dog dentition formula inspissator 8 in the overheavy firing chamber 4; The outer wall of coal dust overheavy firing chamber is provided with oblique cutting and stretches into the burning hot source 3 of high intensity points in the annular inspissator 2, be positioned in the overheavy firing chamber 4 on the inner tubal wall in dog dentition formula inspissator 8 outsides and be spaced a plurality of air film air regulator mouths 9, the outer wall of coal dust overheavy firing chamber is provided with oblique cutting and stretches into the air film airduct 7 that passes through mutually with the air film air regulator mouth 9 of overheavy firing chamber 4 in the tube wall, feed coal burner inside by air film air regulator mouth, form complete air film protective layer at the coal burner inwall; The mode that the coal dust overheavy firing chamber of interior air film wind protection structure takes the whole heat temperature raising of coal dust to light.
Embodiment four, shown in Figure 4, interior air film wind protection structure: air channel 1 of elbow-shaped is connected with coal dust overheavy firing chamber bolted, the porch of coal dust overheavy firing chamber is provided with annular inspissator 2, annular inspissator 2 inlets are connected with overheavy firing chamber 4, are provided with dog dentition formula inspissator 8 in the overheavy firing chamber 4; The outer wall in an air channel 1 of elbow-shaped is provided with axial straight cutting and stretches into the burning hot source 3 of high intensity points in the overheavy firing chamber 4; Be positioned in the overheavy firing chamber 4 on the inner tubal wall in dog dentition formula inspissator 8 outsides and be spaced a plurality of air film air regulator mouths 9, the outer wall of coal dust overheavy firing chamber is provided with oblique cutting and stretches into the air film airduct 7 that passes through mutually with the air film air regulator mouth 9 of overheavy firing chamber 4 in the tube wall.
Embodiment five, shown in Figure 5, outer air film wind protection structure: air channel 1 of straight tube shape is connected with coal dust overheavy firing chamber bolted, the porch of coal dust overheavy firing chamber is provided with annular inspissator 2, annular inspissator 2 inlets are connected with overheavy firing chamber 4, are provided with dog dentition formula inspissator 8 in the overheavy firing chamber 4; The outer wall of coal dust overheavy firing chamber is provided with oblique cutting and stretches into the burning hot source 3 of high intensity points in the annular inspissator 2, is positioned in the overheavy firing chamber 4 on the tube wall in dog dentition formula inspissator 8 outsides to be spaced a plurality of radiation ribs 10.Introduce protection wind from the external world, protection wind enters burner hearth along the adherent walking of burner outer wall, and coal burner is protected; The mode that the coal dust overheavy firing chamber of outer air film wind takes the whole heat temperature raising of coal dust to light.
Embodiment six, shown in Figure 6, outer air film wind protection structure: air channel 1 of elbow-shaped is connected with coal dust overheavy firing chamber bolted, the porch of coal dust overheavy firing chamber is provided with annular inspissator 2, annular inspissator 2 inlets are connected with overheavy firing chamber 4, are provided with dog dentition formula inspissator 8 in the overheavy firing chamber 4; The outer wall in an air channel 1 of elbow-shaped is provided with axial straight cutting and stretches into the burning hot source 3 of high intensity points in the overheavy firing chamber 4; Be positioned in the overheavy firing chamber 4 on the tube wall in dog dentition formula inspissator 8 outsides and be spaced a plurality of radiation ribs 10.
Embodiment seven, shown in Figure 7, light phase air film wind structure: air channel 1 of straight tube shape is connected with coal dust overheavy firing chamber bolted, the porch of coal dust overheavy firing chamber is provided with annular inspissator 2, annular inspissator 2 inlets are connected with overheavy firing chamber 4, the mouth of pipe of annular inspissator 2 is greater than the mouth of pipe of overheavy firing chamber 4, the light wind of the air film mutually passage 11 of formation between the tube wall that makes combustion chamber 4 and the coal dust overheavy firing chamber; Be provided with dog dentition formula inspissator 8 in the overheavy firing chamber 4; The outer wall of coal dust overheavy firing chamber is provided with oblique cutting and stretches into the burning hot source 3 of high intensity points in the overheavy firing chamber 4, is positioned in the overheavy firing chamber 4 on the tube wall of dog dentition formula inspissator 8 to be spaced a plurality of radiation ribs 10.A wind is carried out deep or light separation, during igniting, utilize the burning hot source point combustion of high intensity points dense phase pulverized coal, utilize wind of light phase that coal burner is carried out cooling protection.
Embodiment eight, shown in Figure 8, light phase air film wind structure: air channel 1 of elbow-shaped is connected with coal dust overheavy firing chamber bolted, the porch of coal dust overheavy firing chamber is provided with annular inspissator 2, annular inspissator 2 inlets are connected with overheavy firing chamber 4, the mouth of pipe of annular inspissator 2 is greater than the mouth of pipe of overheavy firing chamber 4, the light wind of the air film mutually passage 11 of formation between the tube wall that makes combustion chamber 4 and the coal dust overheavy firing chamber; Be provided with dog dentition formula inspissator 8 in the overheavy firing chamber 4; The outer wall in an air channel 1 of elbow-shaped is provided with axial straight cutting and stretches into the burning hot source 3 of high intensity points in the overheavy firing chamber 4; Be positioned in the overheavy firing chamber 4 on the tube wall of dog dentition formula inspissator 8 and be spaced a plurality of radiation ribs 10.
Claims (5)
1. internal combustion ignition pulverized coal burner, it comprises an airduct (1) that links to each other with coal dust overheavy firing chamber, the burning hot source of high intensity points (1) and overheavy firing chamber (4), it is characterized in that: it is indoor that the burning hot source of described high intensity points (1) inclination or horizontal axis insert the coal dust overheavy firing, the porch of coal dust overheavy firing chamber is provided with annular inspissator (2), is provided with dog dentition formula inspissator (8) in the described overheavy firing chamber (4).
2. internal combustion ignition pulverized coal burner according to claim 1 is characterized in that: indoor secondary combustion chamber (5) and the three grades of combustion chambers (6) of being provided with successively of described coal dust overheavy firing.
3. internal combustion ignition pulverized coal burner according to claim 1 is characterized in that: described coal dust overheavy firing chamber is provided with air film airduct (7), and the inner tube wall of coal dust overheavy firing chamber is provided with air film air regulator mouth (9).
4. internal combustion ignition pulverized coal burner according to claim 1 is characterized in that: described coal dust overheavy firing chamber barrel is provided with air film airduct (7), and the inner tube wall of coal dust overheavy firing chamber is provided with radiation rib (10).
5. internal combustion ignition pulverized coal burner according to claim 1, it is characterized in that: the inner tube wall of described coal dust overheavy firing chamber is provided with radiation rib (10), leaves the light wind of the air film mutually passage (11) that links to each other with annular inspissator (2) air inlet between inner tube wall and the outer tube wall.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008101236995A CN101592337A (en) | 2008-05-29 | 2008-05-29 | Internal combustion ignition pulverized coal burner |
| PCT/CN2009/071216 WO2009143725A1 (en) | 2008-05-29 | 2009-04-10 | An internal-burning type firing pulverized coal burner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008101236995A CN101592337A (en) | 2008-05-29 | 2008-05-29 | Internal combustion ignition pulverized coal burner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101592337A true CN101592337A (en) | 2009-12-02 |
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ID=41376587
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2008101236995A Pending CN101592337A (en) | 2008-05-29 | 2008-05-29 | Internal combustion ignition pulverized coal burner |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN101592337A (en) |
| WO (1) | WO2009143725A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010108386A1 (en) * | 2009-03-24 | 2010-09-30 | 烟台龙源电力技术股份有限公司 | Pulverized coal concentrating device and pulverized coal burner including same |
| CN109340745A (en) * | 2018-10-10 | 2019-02-15 | 武汉理工大学 | New and effective more neckings are classified whirlwind coal burner |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10473327B2 (en) * | 2016-06-09 | 2019-11-12 | General Electric Technology Gmbh | System and method for increasing the concentration of pulverized fuel in a power plant |
| US11859817B2 (en) * | 2020-12-07 | 2024-01-02 | General Electric Company | System and method for laser ignition of fuel in a coal-fired burner |
Family Cites Families (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3099109B2 (en) * | 1996-05-24 | 2000-10-16 | 株式会社日立製作所 | Pulverized coal burner |
| US6105516A (en) * | 1998-01-08 | 2000-08-22 | Bowen; Peter | Burner nozzle for pulverized coal |
| CA2410725C (en) * | 2001-11-16 | 2008-07-22 | Hitachi, Ltd. | Solid fuel burner, burning method using the same, combustion apparatus and method of operating the combustion apparatus |
| CN2752615Y (en) * | 2004-11-25 | 2006-01-18 | 韩剑锋 | Internal air film circumferential air type pulverized coal burner |
| CN2926843Y (en) * | 2006-04-10 | 2007-07-25 | 徐州燃烧控制研究院有限公司 | Oil-enhanced combustion trigger of coal powder boiler |
| CN201007476Y (en) * | 2007-02-12 | 2008-01-16 | 赵晴岗 | Dual-strong breeze ignition and steady firing device |
| CN201059598Y (en) * | 2007-07-07 | 2008-05-14 | 郭永浩 | Blunt body micro-oil-gasification ignition combusting device |
| CN201083385Y (en) * | 2007-08-08 | 2008-07-09 | 烟台双强燃烧控制工程有限公司 | Ignition and combustion-supporting burner of coal-fired boiler of power station |
| CN201170548Y (en) * | 2007-09-05 | 2008-12-24 | 航天空气动力技术研究院 | Novel plasma arc ignition device system |
| CN101178175A (en) * | 2007-11-06 | 2008-05-14 | 徐州燃烧控制研究院有限公司 | Lean oil heat intensified firing actuating apparatus of pulverized coal boiler |
| CN101187472B (en) * | 2007-12-07 | 2010-06-16 | 华中科技大学 | Low NOx pulverized coal burner |
| CN201203108Y (en) * | 2008-04-25 | 2009-03-04 | 武汉华是能源环境工程有限公司 | Micro-oil heat reinforced nozzle coal-powder combustor capable of swinging |
-
2008
- 2008-05-29 CN CNA2008101236995A patent/CN101592337A/en active Pending
-
2009
- 2009-04-10 WO PCT/CN2009/071216 patent/WO2009143725A1/en active Application Filing
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010108386A1 (en) * | 2009-03-24 | 2010-09-30 | 烟台龙源电力技术股份有限公司 | Pulverized coal concentrating device and pulverized coal burner including same |
| US8555795B2 (en) | 2009-03-24 | 2013-10-15 | Yantai Longyuan Power Technology Co., Ltd. | Pulverized coal concentrator and pulverized coal burner including the concentrator |
| CN109340745A (en) * | 2018-10-10 | 2019-02-15 | 武汉理工大学 | New and effective more neckings are classified whirlwind coal burner |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2009143725A1 (en) | 2009-12-03 |
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| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Xuzhou Combustion Control Research Institute Co., Ltd. Assignor: Xuzhou Combustion Control Research Institute Co., Ltd. Contract fulfillment period: 2009.1.30 to 2014.1.30 contract change Contract record no.: 2009320000140 Denomination of invention: Internal combustion ignition pulverized coal burner License type: exclusive license Record date: 2009.2.27 |
|
| LIC | Patent licence contract for exploitation submitted for record |
Free format text: EXCLUSIVE LICENSE; TIME LIMIT OF IMPLEMENTING CONTACT: 2009.1.30 TO 2014.1.30; CHANGE OF CONTRACT Name of requester: XUZHOU COMBUSTION CONTROL RESEARCH INSTITUTE CO.,L Effective date: 20090227 |
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| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20091202 |