CN87212370U - Pre-burning burner for anthracite duff - Google Patents
Pre-burning burner for anthracite duff Download PDFInfo
- Publication number
- CN87212370U CN87212370U CN 87212370 CN87212370U CN87212370U CN 87212370 U CN87212370 U CN 87212370U CN 87212370 CN87212370 CN 87212370 CN 87212370 U CN87212370 U CN 87212370U CN 87212370 U CN87212370 U CN 87212370U
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- China
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- utility
- combustion
- model
- boiler
- anthracite
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Abstract
The utility model provides a pre-burning burner for anthracite powder, belonging to the technical field of the combustion. The utility model adopts the technical measures of low energy center flare igniting art, stable combustion art, streamline shape of stove, thin hot wall structure, outer shell forced cooling, etc. The utility model uses a little amount of oil (can use the residual oil) to ensure ignition and stable combustion of the anthracite powder boiler, and then the oil used for igniting and stabilizing combustion is remarkably saved, and the efficiency of combustion of the anthracite powder boiler is enhanced. The utility model has the advantages of compactness, strong applicability, safe operation, simple structure, small resistance of flow and easy realization of automatic control. The utility model can be used for the power station boiler or the industrial boiler which combust the anthracite, the inferior bitumite, the lean coal and other industrial boilers combusting coal.
Description
The utility model relates to a kind of anthracite coal burner.
The igniting and the low-load combustion-stabilizing of existing coal powder boiler combustion chamber adopt the spiral-flow type pre-combustion chamber burner more, as the pre-combustion chamber burner (publishing in the 1st phase of " power engineering " nineteen eighty-three) of " experimental study of coal dust pre-combustion chamber burner " report.This spiral-flow type pre-combustion chamber burner only is applicable to use bituminous coal and meager coal boiler preferably, also once be used for the boiler of soft coal, but it is low not to be suitable for volatile content, the anthracite of the difficulty of catching fire.And this spiral-flow type pre-combustion chamber burner, structure are complicated, and volume is bigger, are difficult to use on the pulverized-coal fired boiler that coner firing is arranged.Igniting and low-load combustion-stabilizing to using anthracite-fired boiler must consume a large amount of igniting and help fuel oil at present, and simultaneously, because the difficulty of catching fire, boiler burns bad in earlier stage, thereby the coal dust burn-off rate is low, the unburned carbon in flue dust height.
It is few that the purpose of this utility model is to design a kind of fuel consumption, surely fires the degree height, simple in structure, and the pre-burner of anthracite coal dust that volume is little is realized the igniting of anthracite pulverized-coal fired boiler, steady combustion, improves efficiency of combustion.
Solution of the present utility model is: oil combustion chamber in the pre-burner of coal dust and pulverized coal combustor are provided with separately respectively and serial connection, be the direct current type of furnace of thin thermal wall structure, with the oily nozzle atomized fuel oil of a little oil mass (heavy oil or residual oil all can), in preposition oil combustion chamber, produce the center oil torch, by infeeding coal dust and a wind mixture in the oil combustion chamber external jacket, coal dust and a wind mixture are lighted also by the center oil torch, and smooth combustion enters pulverized coal combustor, secondary wind is by infeeding in the pulverized coal combustor external jacket, breeze airflow sprays into boiler furnace with the form of torch and burns away after reaching certain after-flame degree, and light the breeze airflow that the adjacent angle burner sprays into, further overheavy firing.
The pre-burner of coal dust of the present utility model, owing to adopted little center of energy torch to come firing coal-dust and the steady combustion of realization, thereby reduced the fuel consumption of boiler significantly; Because oil and coal dust burn in oil combustion chamber and pulverized coal combustor respectively, the combustion instability phenomenon that avoided oil gun wind, oil, coal to interact and coal dust fire extinguishing etc. caused, the stability and the interference free performance of burning have been improved, improved the burning condition in early stage, increased the lingering period of coal dust in boiler, reduce the phosphorus content of flying dust, improved efficiency of combustion; Adopted the direct current type of furnace of thin thermal wall structure, flow resistance is little, compact conformation, and volume is little, and diameter only is with 1/3 of the pre-burner of capacity spiral-flow type, need not change boiler main furnace body and water screen tube during installation.
Accompanying drawing is the structure chart of the pre-burner of anthracite coal dust.
As shown in the figure, oil nozzle (1) can the employing ratio be regulated oily nozzle, work as load change, the coal dust amount, during a wind-warm syndrome fluctuation, as long as regulate amount of fuel, can reach the purpose that changes operating mode, oil combustion chamber (2), the shell of pulverized coal combustor (5) is made with heat-resistance stainless steel, oil combustion chamber liner (3), coal dust firing chamber liner (6) uses alumina refractory, oil combustion chamber external jacket (4), pulverized coal combustor external jacket (7) infeeds wind and coal dust intermixture respectively, secondary wind, not only cool off combustor outer casing, also improved simultaneously the temperature of wind coal dust intermixture and secondary wind, helped catching fire and burning of coal dust.The pre-burner of this coal dust goes for the pulverized-coal fired boiler that coner firing is arranged, also can be used for other industrial coal powder boilers and industrial furnace.Two Coal-fired capacities of the present utility model be 4 tons/time the pre-burner of anthracite coal dust successfully put into operation in 230 tons of evaporation capacity of certain power plant/time, use the slag tapping boiler that the coner firing of the anthracite coal dust of volatile matter 2-4% is arranged, 1500 tons of annual fuel-economizings.
Claims (2)
1, the pre-burner of a kind of anthracite coal dust, it is made up of oily nozzle and burner hearth, it is characterized in that burner hearth is made of independent oil combustion chamber [2] and pulverized coal combustor [5], oil combustion chamber [2], pulverized coal combustor [5] are the direct current type of furnace, oil combustion chamber [2] has external jacket [4], and pulverized coal combustor [5] has external jacket [7].
2, according to the pre-burner of the described coal dust of claim 1, it is characterized in that the shell of oil combustion chamber (2), pulverized coal combustor (5) adopts heat-resistance stainless steel to make, interior wall liner (3) and (6) lining are with the alumina refractory thin layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 87212370 CN87212370U (en) | 1987-10-16 | 1987-10-16 | Pre-burning burner for anthracite duff |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 87212370 CN87212370U (en) | 1987-10-16 | 1987-10-16 | Pre-burning burner for anthracite duff |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN87212370U true CN87212370U (en) | 1988-08-10 |
Family
ID=4827034
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 87212370 Withdrawn CN87212370U (en) | 1987-10-16 | 1987-10-16 | Pre-burning burner for anthracite duff |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN87212370U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101684939B (en) * | 2008-08-11 | 2011-11-23 | 乔治洛德方法研究和开发液化空气有限公司 | Method and system for burning solid fuel in industrial furnace |
| CN104832912A (en) * | 2015-04-08 | 2015-08-12 | 石家庄新华能源环保科技股份有限公司 | Multistage relay burner |
| CN106642084A (en) * | 2016-12-08 | 2017-05-10 | 哈尔滨工业大学 | Dual-register strong vortex melting combustor |
-
1987
- 1987-10-16 CN CN 87212370 patent/CN87212370U/en not_active Withdrawn
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101684939B (en) * | 2008-08-11 | 2011-11-23 | 乔治洛德方法研究和开发液化空气有限公司 | Method and system for burning solid fuel in industrial furnace |
| CN104832912A (en) * | 2015-04-08 | 2015-08-12 | 石家庄新华能源环保科技股份有限公司 | Multistage relay burner |
| CN106642084A (en) * | 2016-12-08 | 2017-05-10 | 哈尔滨工业大学 | Dual-register strong vortex melting combustor |
| CN106642084B (en) * | 2016-12-08 | 2019-07-26 | 哈尔滨工业大学 | It is a kind of double that wind is adjusted to be vortexed by force melting burner |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C53 | Correction of patent for invention or patent application | ||
| CB02 | Change of applicant information |
Applicant after: Southeast University Applicant before: Nanjing Polytechnical College |
|
| CB04 | Change of attorney information |
Patent agency after: Patent Agency of Southeast Univ. Patent agency before: Patent Agency of Nanjing Institute of Technology |
|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: APPLICANT; FROM: NANJING TECHNOLOGY INSTITUTE TO: DONGNAN UNIV.; PATENT AGENCY; FROM: NANJING TECHNOLOGY INSTITUTE PATENT OFFICE TO: DONGNAN UNIV. PATENT OFFICE |
|
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |