CN101021319A - Concentrated and thin fuel-saving igniting coal powder burner - Google Patents
Concentrated and thin fuel-saving igniting coal powder burner Download PDFInfo
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- CN101021319A CN101021319A CN 200710067398 CN200710067398A CN101021319A CN 101021319 A CN101021319 A CN 101021319A CN 200710067398 CN200710067398 CN 200710067398 CN 200710067398 A CN200710067398 A CN 200710067398A CN 101021319 A CN101021319 A CN 101021319A
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- coal
- combustion chamber
- coal powder
- concentrated
- level combustion
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- 239000003245 coal Substances 0.000 title claims abstract description 81
- 239000000843 powder Substances 0.000 title claims abstract description 23
- 238000002485 combustion reaction Methods 0.000 claims abstract description 36
- 238000000926 separation method Methods 0.000 claims abstract description 11
- 238000005192 partition Methods 0.000 abstract 2
- 238000000034 method Methods 0.000 abstract 1
- 239000002817 coal dust Substances 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000003628 erosive effect Effects 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000000295 fuel oil Substances 0.000 description 1
- 230000001535 kindling effect Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
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Abstract
The present invention relates to a dense-thin oil-saving ignition coal powder combustor. It includes combustor self-body, one-stage combustion chamber and ignition heat-source nozzle. It is characterized by that in the described combustor self-body that in the described combustor self-body inlet a dense-thin coal powder separation device is set, in the described one-stage combustion chamber interior two separation partition boards are set, said one-stage combustion chamber is divided into dense coal powder zone, thin coal powder zone and dense-thin coal powders mixing zone by means of partition boards, in the described dense coal powder zone an ignition heat-source nozzle is set. Said invention also provides the working principle of said coal powder combustor and its concrete operation method.
Description
Technical field
The invention belongs to a kind of coal burner, belong to generating plant pulverized coal boiler starting ignition and low-load combustion-stabilizing burner particularly.
Background technology
Current coal is in short supply, the ature of coal that boiler is used is difficult to be guaranteed, when causing on the one hand in the running of power station high load capacity, ash erosion is serious, because general pulverized-coal fired boiler is lower than at 70% o'clock at load, burning can be unstable on the other hand, for keeping smooth combustion under the underload, it is combustion-supporting to throw oil again, has had a strong impact on the safety and economic operation of station boiler.Burner is the key that station boiler catches fire and surely uses, in order to save the fuel consume in heat power plant boiler startup and the steady combustion process, therefore develop a kind of coal burner that can increase substantially efficiency of combustion, in station boiler, use large tracts of land and promote, become a kind of active demand.
Summary of the invention
Technical problem to be solved by this invention is: a kind of simple in structure, fuel-economizing igniting pulverized coal burner that ignition energy is low is provided.
In order to solve the problems of the technologies described above, the present invention adopts following technical scheme: a kind of concentrated and thin fuel-saving igniting coal powder burner, comprise burner body, one-level combustion chamber, igniting thermal source entrance, it is characterized in that: described burner body porch is provided with the bias pulverized coal separator, described one-level is provided with the separation dividing plate in the combustion chamber, separate dividing plate the one-level combustion chamber is separated out thick coal culm district, thin powdered coal district and bias pulverized coal mixed zone, the described thick coal culm district burning hot source entrance of setting up an office.
In order to solve the problems of the technologies described above, the present invention also adopts following further technical scheme:
Described bias pulverized coal separator is an elbow.
Described bias pulverized coal separator is made of housing and louvre blade, and described louvre blade is installed in the housing.
Described separation dividing plate is positioned at preceding half section of one-level combustion chamber, and the second half section of one-level combustion chamber is the bias pulverized coal mixed zone.
After adopting said structure: the primary wind and powder mixture carries out deep or light separation after entering light-dark separation device, cause the high thick coal culm that forms of burner inlet one side coal powder density, the low thin powdered coal that forms of opposite side coal powder density, thick coal culm enters the thick coal culm district of one-level combustion chamber, thin powdered coal enters the thin powdered coal district of one-level combustion chamber, the igniting thermal source sprays into the thick coal culm air-flow side in the one-level combustion chamber, because the thick coal culm ignition temperature is low, with extremely low ignition energy, this part air-flow just can be rapid fire burns, and in bias pulverized coal mixed zone and the mixed combustion of thin powdered coal air-flow of one-level combustion chamber second half section, thereby greatly reduce the consumption of fuel oil, improve flame temperature and efficiency of combustion, reached the purpose of energy savings.Adopt the result of the test of this structure burner to show, but igniting during kindling fuel-economizing guarantee boiler smooth combustion under underload simultaneously more than 9 5%, this kind burner simple in structure, low cost of manufacture, but large scale application.
Description of drawings
Fig. 1 is the structural representation of embodiment 1;
Fig. 2 is that the A-A of Fig. 1 is to cutaway view;
Fig. 3 is the structural representation of embodiment 2.
The specific embodiment
Example 1:
Referring to Fig. 1 and Fig. 2, the novel burner body 1 that comprises of this reality, one-level combustion chamber 2, igniting thermal source entrance 3, one-level combustion chamber 2 is inserted in the burning body 1, and it is fixing by fin 12, burner body 1 porch is provided with the bias pulverized coal separator, the bias pulverized coal separator is an elbow 4 in the present embodiment, be provided with in the one-level combustion chamber 2 and separate dividing plate 5, separate dividing plate 5 and be positioned at one-level combustion chamber 2 preceding half section, it is with two districts about the 2 preceding half section separation of one-level combustion chamber, be respectively thick coal culm district 6, thin powdered coal district 7, the second half section of one-level combustion chamber 2 is bias pulverized coal mixed zone 8, the thick coal culm district 6 burning hot source entrance 3 of setting up an office, like this, after a wind carries coal dust and enters elbow 4, because coal dust inertia is bigger, most of coal dust is thrown to the pulverized coal channel outside, make that the coal powder density in the pipeline outside is bigger than the coal powder density of insides of pipes, cause the high thick coal culm that forms of burner inlet one side coal powder density, the low thin powdered coal that forms of opposite side coal powder density, thick coal culm enters the thick coal culm district 6 of one-level combustion chamber 2, thin powdered coal enters the thin powdered coal district 7 of one-level combustion chamber 2, because the ignition temperature of thick coal culm is low, catch fire easily, the igniting thermal source is lighted the thick coal culm that enters 2 thick coal culm districts 6, one-level combustion chamber, the thick coal culm of violent burning mixes in the bias pulverized coal mixed zone 8 of one-level combustion chamber 2 with thin powdered coal more then, light thin powdered coal, enter secondary combustion chamber 9 subsequently and light more coal dust.
Embodiment 2:
Referring to Fig. 3, the structure shown in the present embodiment, except that the structure of bias pulverized coal separator and different shown in the embodiment 1, all the other structures are identical with embodiment 1.
The bias pulverized coal separator is made of housing 10 and louvre blade 11 in the present embodiment, and described louvre blade 11 is installed in the housing 10.After a wind carried coal dust and enters light-dark separation device, a large amount of coal dusts were because effect of inertia strikes on the louvre blade 11, and the opposite side that rebounds makes this side coal powder density height, thereby reached the effect of deep or light separation.
Bias pulverized coal separator of the present invention; remove the structure of the described description of above-mentioned two embodiment; also can adopt other structure; as impact block etc. is set in the housing; under the situation of the spirit and scope that do not break away from invention; can also make various variations and modification, so all technical schemes that are equal to also belong to category of the present invention, scope of patent protection of the present invention should be limited by each claim.
This burner is used for generating plant pulverized coal boiler starting ignition and low-load combustion-stabilizing, both can be used as auxiliary burner, also can be used for main burner, and it is simple in structure, and low cost of manufacture is adapted at using in the station boiler and promoting.
Claims (5)
1, a kind of concentrated and thin fuel-saving igniting coal powder burner, comprise burner body (1), one-level combustion chamber (2), igniting thermal source entrance (3), it is characterized in that: described burner body (1) porch is provided with the bias pulverized coal separator, be provided with in the described one-level combustion chamber (2) and separate dividing plate (5), separate dividing plate (5) one-level combustion chamber (2) are separated out thick coal culm district (6), thin powdered coal district (7) and bias pulverized coal mixed zone (8), described thick coal culm district (6) the burning hot source entrance (3) of setting up an office.
2, a kind of concentrated and thin fuel-saving igniting coal powder burner as claimed in claim 1 is characterized in that: described bias pulverized coal separator is an elbow (4).
3, a kind of concentrated and thin fuel-saving igniting coal powder burner as claimed in claim 1 is characterized in that: described bias pulverized coal separator is made of housing (10) and louvre blade (11), and described louvre blade (11) is installed in the housing (10).
4, a kind of concentrated and thin fuel-saving igniting coal powder burner as claimed in claim 1 or 2 is characterized in that: described separation dividing plate (5) is positioned at preceding half section of one-level combustion chamber (2), and the second half section of one-level combustion chamber (2) is bias pulverized coal mixed zone (8).
5, a kind of concentrated and thin fuel-saving igniting coal powder burner as claimed in claim 3, it is characterized in that: described separation dividing plate (5) is positioned at preceding half section of one-level combustion chamber (2), and the second half section of one-level combustion chamber (2) is bias pulverized coal mixed zone (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200710067398 CN101021319A (en) | 2007-02-26 | 2007-02-26 | Concentrated and thin fuel-saving igniting coal powder burner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200710067398 CN101021319A (en) | 2007-02-26 | 2007-02-26 | Concentrated and thin fuel-saving igniting coal powder burner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101021319A true CN101021319A (en) | 2007-08-22 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200710067398 Pending CN101021319A (en) | 2007-02-26 | 2007-02-26 | Concentrated and thin fuel-saving igniting coal powder burner |
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| CN (1) | CN101021319A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102226520A (en) * | 2011-04-25 | 2011-10-26 | 哈尔滨工业大学 | Combustion device and combustion method for directly igniting vertical thick and thin pulverized coal airflow |
| CN105135462A (en) * | 2015-08-21 | 2015-12-09 | 重庆愚吉机械制造有限公司 | Pulverized coal even distributing device |
| CN108087871A (en) * | 2018-01-26 | 2018-05-29 | 山东大学 | A kind of coal burner |
| CN108410504A (en) * | 2018-03-30 | 2018-08-17 | 烟台龙源电力技术股份有限公司 | Coal pretreatment device and boiler |
| CN108504390A (en) * | 2018-03-30 | 2018-09-07 | 烟台龙源电力技术股份有限公司 | Coal pretreatment device, control method and boiler |
| CN112781033A (en) * | 2021-03-18 | 2021-05-11 | 烟台龙源电力技术股份有限公司 | Offset pulverized coal burner and combustion system |
| CN112781035A (en) * | 2021-03-18 | 2021-05-11 | 烟台龙源电力技术股份有限公司 | Offset pulverized coal burner and combustion system |
-
2007
- 2007-02-26 CN CN 200710067398 patent/CN101021319A/en active Pending
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102226520A (en) * | 2011-04-25 | 2011-10-26 | 哈尔滨工业大学 | Combustion device and combustion method for directly igniting vertical thick and thin pulverized coal airflow |
| CN102226520B (en) * | 2011-04-25 | 2013-04-10 | 哈尔滨工业大学 | Combustion device and method for directly igniting vertical shade pulverized coal airflow |
| CN105135462A (en) * | 2015-08-21 | 2015-12-09 | 重庆愚吉机械制造有限公司 | Pulverized coal even distributing device |
| CN105135462B (en) * | 2015-08-21 | 2019-02-01 | 淮北市生产力促进中心 | Coal even separator |
| CN108087871A (en) * | 2018-01-26 | 2018-05-29 | 山东大学 | A kind of coal burner |
| CN108410504A (en) * | 2018-03-30 | 2018-08-17 | 烟台龙源电力技术股份有限公司 | Coal pretreatment device and boiler |
| CN108504390A (en) * | 2018-03-30 | 2018-09-07 | 烟台龙源电力技术股份有限公司 | Coal pretreatment device, control method and boiler |
| CN108410504B (en) * | 2018-03-30 | 2024-05-31 | 烟台龙源电力技术股份有限公司 | Coal pretreatment device and boiler |
| CN108504390B (en) * | 2018-03-30 | 2024-05-31 | 烟台龙源电力技术股份有限公司 | Coal pretreatment device, control method and boiler |
| CN112781033A (en) * | 2021-03-18 | 2021-05-11 | 烟台龙源电力技术股份有限公司 | Offset pulverized coal burner and combustion system |
| CN112781035A (en) * | 2021-03-18 | 2021-05-11 | 烟台龙源电力技术股份有限公司 | Offset pulverized coal burner and combustion system |
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Open date: 20070822 |