CN2854368Y - Micro-oil ignition burner for multiple type of coal - Google Patents
Micro-oil ignition burner for multiple type of coal Download PDFInfo
- Publication number
- CN2854368Y CN2854368Y CN 200520145352 CN200520145352U CN2854368Y CN 2854368 Y CN2854368 Y CN 2854368Y CN 200520145352 CN200520145352 CN 200520145352 CN 200520145352 U CN200520145352 U CN 200520145352U CN 2854368 Y CN2854368 Y CN 2854368Y
- Authority
- CN
- China
- Prior art keywords
- coal
- pulverized coal
- combustion
- coal dust
- oil
- 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.)
- Expired - Lifetime
Links
- 239000003245 coal Substances 0.000 title claims abstract description 86
- 238000002485 combustion reaction Methods 0.000 claims abstract description 50
- 239000002817 coal dust Substances 0.000 claims description 73
- 239000000843 powder Substances 0.000 claims description 9
- 238000004939 coking Methods 0.000 abstract 1
- 239000002360 explosive Substances 0.000 abstract 1
- 239000003921 oil Substances 0.000 description 50
- 239000000295 fuel oil Substances 0.000 description 5
- 239000000470 constituent Substances 0.000 description 4
- RHZUVFJBSILHOK-UHFFFAOYSA-N anthracen-1-ylmethanolate Chemical compound C1=CC=C2C=C3C(C[O-])=CC=CC3=CC2=C1 RHZUVFJBSILHOK-UHFFFAOYSA-N 0.000 description 3
- 239000003830 anthracite Substances 0.000 description 3
- 239000012141 concentrate Substances 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 238000010304 firing Methods 0.000 description 2
- 239000004215 Carbon black (E152) Substances 0.000 description 1
- 239000002802 bituminous coal Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000003502 gasoline Substances 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
Images
Abstract
The utility model discloses a burner with wide coal species and little oil, which comprises a pre-combustion room of pulverized coal, a combustion room of pulverized coal, a main combustion room of pulverized coal and a primary air passage. The pre-combustion room of pulverized coal, which is provided with a pre-combustion oil gun, is connected to one end of the combustion room; the combustion room of pulverized coal, which is provided with the primary and auxiliary oil guns, is connected to the other end of the main combustion room. The pre-combustion room of pulverized coal is arranged on the other end of far from the main combustion room of pulverized coal; the primary and auxiliary oil guns are positioned at the side wall of the combustion room of pulverized coal. The utility model of burner, with the configuration of facilities for the pre-combustion pulverized coal, condenses and pre-heats the pulverized coal and then feed it to the main combustion area for ignition, so as to guarantee the complete combustion of pulverized coal of various types, particularly the lean coal and blind coal, in the preliminary stage of ignition under cold state. The burner, with simple structure, reliability and stability, no explosive combustion, no coking, better contribution in ignition, fast speed and the oil-saving rate of more than 90%, can be applied for the pulverized coal of various types and for the cold state ignition of boiler with pulverized coal and the for the stable combustion with super underload.
Description
Technical field
The utility model relates to a kind of burner, belongs to igniting of pulverized-coal fired boiler cold conditions and ultra-low load smooth combustion apparatus, particularly relates to a kind of little oil burner that is suitable for all types of coals.
Background technology
For economy, reduction cost of electricity-generating, energy savings, the realization replace oil with coal that improves the operation of boiler and generating set, bring into use little oil gun to substitute big oil gun fuel ignition in the past and the steady combustion of underload throwing oil in the pulverized-coal fired boiler, Chinese patent ZL03255982.8 discloses a kind of cold state ignition under tiny oil and steady burning burner in ultra low load, can utilize micro-fuel oil direct firing coal-dust under the black furnace state by this device, save large-sized station boiler and rise furnace oil, and have ultra-low load steady combustion ability.But in this device, the coal dust flow velocity is big, very short through the time of pulverized coal combustor, cause the pulverized coal preheating time short, temperature increase is limited, and this device has only a little oil gun, coal dust intensification preheating and ignition must once be finished, therefore this device can only be applicable to the bituminous coal that ature of coal is good, fugitive constituent is high, and can not be used for main burner.When the low anthracite of fugitive constituent is lighted a fire when using all lower meager coal of caloric value and fugitive constituent or caloric value height, because preheating time in the combustion chamber is short at meager coal or anthracite, temperature can not significantly improve, the hydrocarbon of separating out is few, most of coal all can't be lighted, therefore, this tiny-oil ignition device has certain limitation.
The utility model content
At the deficiencies in the prior art, the technical problems to be solved in the utility model just provides a kind of under the black furnace condition, only use the fuel oil of trace, the coal dust that can light all kinds coal start boiler, and can be at the burner capable of using various coal and little oil igniting of smooth combustion under the low load condition.This burner both can be used as the pulverized-coal fired boiler main burner, also can be used as auxiliary burner.
For achieving the above object, a kind of burner capable of using various coal and little oil igniting of the utility model comprises pulverized coal combustor, coal dust main combustion chamber and a wind passage, and pulverized coal combustor links to each other with an end of coal dust main combustion chamber, have main oil gun on the pulverized coal combustor, also comprise the coal dust precombustion chamber; Described main oil gun is arranged on the sidewall of pulverized coal combustor, and this coal dust precombustion chamber is arranged on the other end away from the pulverized coal combustor of coal dust main combustion chamber, and the coal dust precombustion chamber links to each other with a described wind passage and has pre-oil combustion gun.
Further, also comprise auxiliary oil gun, this auxiliary oil gun is arranged on the coal dust precombustion chamber or pulverized coal combustor between pre-oil combustion gun and the pulverized coal combustor.
Further, the cross section of described coal dust precombustion chamber is circle; This coal dust precombustion chamber, increases after the diameter in its cross section dwindles gradually to the other end that links to each other with pulverized coal combustor more gradually from the one end.
Further, comprise that also the cross section is circular coal powder second enriched chamber, this coal powder second enriched chamber is arranged between described coal dust precombustion chamber and the pulverized coal combustor and the diameter in its cross section dwindles gradually.
Further, described pre-oil combustion gun is arranged on the sidewall of coal dust precombustion chamber, and a described wind passage is connected the end away from the coal dust precombustion chamber of pulverized coal combustor.
Further, described auxiliary oil gun is arranged between described main oil gun and the described pulverized coal combustor.
Compared with prior art, the utility model burner capable of using various coal and little oil igniting is by being provided with the pre-burning device of coal dust, after the Pulverized Coal Concentration preheating, enter the primary zone again and light a fire, guaranteed that various types of coal dusts, particularly meager coal and anthracite are in the cold conditions abundant burning at igniting initial stage.This apparatus structure is simple, and is reliable and stable, non-detonating, and noncoking, igniting are exerted oneself greatly, speed is fast, and rate of economizing gasoline can reach more than 90%, is fit to various types of coal dusts and is used for igniting of pulverized-coal fired boiler cold conditions and ultra-low load steady combustion.
Description of drawings
Fig. 1 is the front view of the utility model burner capable of using various coal and little oil igniting.
The specific embodiment
Below in conjunction with accompanying drawing detailed description the utility model burner capable of using various coal and little oil igniting:
Among Fig. 1, burner comprises that the cross section is circular the once concentration chamber 1 that is connected together successively, coal dust precombustion chamber 2, secondary concentration chamber 3, pulverized coal combustor 4, coal dust main chamber 5, coal powder recombustion chamber 6 and a wind carrier pipe 10.Wherein, once concentration chamber 1, coal dust precombustion chamber 2, secondary concentration chamber 3 and pulverized coal combustor 4 all are arranged in wind carrier pipe 10, and the end of a wind carrier pipe 10 links to each other with coal powder recombustion chamber 6 with coal dust main chamber 5.Pre-oil combustion gun sleeve pipe 11 is set on the sidewall of coal dust precombustion chamber 2, and the end of pre-oil combustion gun 7 is positioned at the middle part of this pre-oil combustion gun sleeve pipe 11, and pre-oil combustion gun sleeve pipe 11 constitutes oil combustion chamber 14 near the cavity front end of pulverized coal preheating chamber 2.The sidewall of pulverized coal combustor 4 is provided with main oil gun sleeve pipe 12 and auxiliary oil gun sleeve pipe 13.The end of main oil gun 8 is positioned at the middle part of this main oil gun sleeve pipe 12, and main oil gun sleeve pipe 12 constitutes oil combustion chamber 15 near the cavity front end of pulverized coal combustor 4.Auxiliary oil gun 9 is positioned at auxiliary oil gun sleeve pipe 13, and its end is near pulverized coal combustor 4.Pre-oil combustion gun sleeve pipe 11, main oil gun sleeve pipe 12 and the axis of auxiliary oil gun sleeve pipe 13 and all angled inclination of axis of a wind carrier pipe 10, once concentration chamber 1, coal dust precombustion chamber 2, secondary concentration chamber 3 and pulverized coal combustor 4 are tubaeform.The end that the diameter of section of once concentration chamber 1 is big relatively is the inlet of a wind, and the other end links to each other with the relative little end of diameter of section of coal dust precombustion chamber 2.The bigger end of the diameter of section of secondary concentration chamber 3 links to each other with an end of coal dust precombustion chamber 2, and the less end of the other end diameter of section of secondary concentration chamber 3 links to each other with pulverized coal combustor 4.Along the transport path direction of a wind, the diameter of section of pulverized coal combustor 4 increases gradually.One time wind carrier pipe 10 all has the annular gap with coal dust main chamber 5, coal powder recombustion chamber 6 connecting places.
During burner operation, at first use a small amount of coal dust after once concentration chamber 1 concentrates, enter in the coal dust precombustion chamber 2, after pre-oil combustion gun 7 igniting, oil combustion chamber 14 internal combustion of oil in pre-oil combustion gun sleeve pipe 11, the burned flame band a large amount of heats will concentrate the coal dust heating, because the sectional area of coal dust precombustion chamber 2 increases gradually, the flow velocity of coal dust slows down gradually, so prolonged the time of staying of coal dust in coal dust precombustion chamber 2, the temperature of coal dust is raise rapidly, and the fugitive constituent in the coal dust is by a large amount of sucking-offs.After coal dust after the heating concentrates through secondary concentration chamber 3 again, the fuel oil of main oil gun 8 ejections is in oil combustion chamber 15 internal combustion, its flame heats coal dust once more, along with the sectional area of pulverized coal combustor 4 strengthens gradually, the flow velocity of coal dust slows down once more, and the unburned coal dust of part is lighted in pulverized coal combustor 4.9 of auxiliary oil guns replenish fuel oil as required in pulverized coal combustor 4, help coal dust firing.The pulverized coal combustors that the coal dust of lighting enters coal dust main combustion chamber 5 and coal powder recombustion chamber 6 successively and some levels of being provided with as required link to each other, and with mix mutually from coal dust, air that the annular gap replenished after burn again, down to lighting whole coal dusts.
After one time wind entered from once concentration chamber 1, along with the diameter of section of once concentration chamber 1 dwindles gradually, the flow velocity of coal dust reduced, and coal dust is concentrated.After coal dust after concentrating enters coal dust precombustion chamber 2, part coal dust temperature raises and is lighted, because the diameter of section of coal dust precombustion chamber 2 increases gradually, the flow velocity of coal dust reduces, increase the time of staying of coal dust in coal dust precombustion chamber 2, helped the temperature increase of unburned coal dust.And enter in the secondary concentration chamber 3 that diameter of section reduces gradually when coal dust, this slows down the flow velocity of coal dust again, coal dust is concentrated once more, after coal dust after concentrating entered the pulverized coal combustor 4 that diameter of section increases gradually, the flame heat regulating that is sprayed by main oil gun 8 promoted temperature, and the temperature of unburned coal dust also obtains to raise once more, and flow velocity slows down, the time of heating up obtains prolonging, and the coal dust after the repairing that obtains auxiliary oil pipe 9 enters coal dust main combustion chamber 5 and coal powder recombustion chamber 6 burns away.
In addition, auxiliary oil gun 9 also can be arranged on the sidewall of coal dust precombustion chamber 7, and between pre-oil combustion gun 7 and secondary concentration chamber 3.
Claims (6)
1, a kind of burner capable of using various coal and little oil igniting comprises pulverized coal combustor, coal dust main combustion chamber and a wind passage, and pulverized coal combustor links to each other with an end of coal dust main combustion chamber, has main oil gun on the pulverized coal combustor, it is characterized in that, also comprises the coal dust precombustion chamber; Described main oil gun is arranged on the sidewall of pulverized coal combustor, and this coal dust precombustion chamber is arranged on the other end away from the pulverized coal combustor of coal dust main combustion chamber, and the coal dust precombustion chamber links to each other with a described wind passage and has pre-oil combustion gun.
2, burner according to claim 1 is characterized in that, also comprises auxiliary oil gun, and this auxiliary oil gun is arranged on the coal dust precombustion chamber or pulverized coal combustor between pre-oil combustion gun and the pulverized coal combustor.
3, burner according to claim 2 is characterized in that, the cross section of described coal dust precombustion chamber is circle; This coal dust precombustion chamber, increases after the diameter in its cross section dwindles gradually to the other end that links to each other with pulverized coal combustor more gradually from the one end.
4, burner according to claim 3 is characterized in that, comprises that also the cross section is circular coal powder second enriched chamber, and this coal powder second enriched chamber is arranged between described coal dust precombustion chamber and the pulverized coal combustor and the diameter in its cross section dwindles gradually.
5, burner according to claim 4 is characterized in that, described pre-oil combustion gun is arranged on the sidewall of coal dust precombustion chamber, and a described wind passage is connected the end away from the coal dust precombustion chamber of pulverized coal combustor.
6, burner according to claim 4 is characterized in that, described auxiliary oil gun is arranged between described main oil gun and the described pulverized coal combustor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520145352 CN2854368Y (en) | 2005-12-23 | 2005-12-23 | Micro-oil ignition burner for multiple type of coal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520145352 CN2854368Y (en) | 2005-12-23 | 2005-12-23 | Micro-oil ignition burner for multiple type of coal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2854368Y true CN2854368Y (en) | 2007-01-03 |
Family
ID=37581004
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520145352 Expired - Lifetime CN2854368Y (en) | 2005-12-23 | 2005-12-23 | Micro-oil ignition burner for multiple type of coal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2854368Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100406804C (en) * | 2005-12-23 | 2008-07-30 | 艾佩克斯科技(北京)有限公司 | Burner capable of using various coal and little oil igniting |
| CN100585276C (en) * | 2008-06-20 | 2010-01-27 | 哈尔滨工业大学 | Side direction multilevel open type igniting center powder feeding vortex combustor of small oil mass gasification combustion |
| CN108826285A (en) * | 2018-06-01 | 2018-11-16 | 山西瓦特网联环能科技有限公司 | Big adjust compares coal burner |
-
2005
- 2005-12-23 CN CN 200520145352 patent/CN2854368Y/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100406804C (en) * | 2005-12-23 | 2008-07-30 | 艾佩克斯科技(北京)有限公司 | Burner capable of using various coal and little oil igniting |
| CN100585276C (en) * | 2008-06-20 | 2010-01-27 | 哈尔滨工业大学 | Side direction multilevel open type igniting center powder feeding vortex combustor of small oil mass gasification combustion |
| CN108826285A (en) * | 2018-06-01 | 2018-11-16 | 山西瓦特网联环能科技有限公司 | Big adjust compares coal burner |
| CN108826285B (en) * | 2018-06-01 | 2023-11-03 | 山西瓦特网联环能科技有限公司 | Large regulating ratio coal powder burner |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN100406804C (en) | Burner capable of using various coal and little oil igniting | |
| CN112254123B (en) | Micro-gas ignition combustion-supporting combustion device | |
| CN2854368Y (en) | Micro-oil ignition burner for multiple type of coal | |
| CN101446412B (en) | Pulverized coal burner | |
| CN200952702Y (en) | Pulverized-coal fired boiler vortex burner | |
| CN207455575U (en) | A kind of oxygenation start-up burner of coal burning boiler of power station | |
| CN102401373A (en) | Three-volute high temperature oxygen rich pulverized coal ignition device | |
| CN1082164A (en) | Burner for heating powdered coal on fluidized bed by precombustion | |
| CN107575859A (en) | The oxygenation start-up burner and its ignition smooth combustion method of a kind of coal burning boiler of power station | |
| CN206600793U (en) | A kind of coal-burning power plant's turbulent burner suitable for Blended Coal Combustion | |
| CN85100050A (en) | A kind of intensified synclastic fluid flame stabilization and burner thereof | |
| CN102506423A (en) | Method for assisting in igniting low-volatile coal in burning by adding oxygen | |
| CN107013915B (en) | Little oil ignition combustor suitable for power station boiler | |
| CN111947135B (en) | Combustion method of W flame boiler capable of realizing self-stable combustion of ultralow-load concentrated pulverized coal airflow | |
| CN102032563B (en) | Pulverized coal burner and boiler with same | |
| CN101592337A (en) | Internal combustion ignition pulverized coal burner | |
| CN2632502Y (en) | Stage ignition coal powder burner | |
| CN101191614B (en) | General purpose coal dust micro-oil igniting method | |
| CN200979156Y (en) | General coal dust micro-oil igniting burner | |
| CN210601622U (en) | Adjustable staged ignition burner suitable for gas fuel | |
| CN2800082Y (en) | Hexangularly arranged direct current dual-purpose burner with water coal slurry and heavy oil as fuel | |
| CN208457964U (en) | A kind of turbulent burner | |
| CN2697484Y (en) | High-efficient long service life heat storage type ignitor for burner | |
| CN206669723U (en) | A kind of igniter and burner | |
| CN202074509U (en) | Gas-solid two-phase series-parallel ignition stabilizing burner for coal difficult to burn |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: AIPEIX SCI. & TECH, (BEIJING) CO., LTD. Free format text: FORMER OWNER: GUO XIUFENG Effective date: 20070622 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20070622 Address after: 100085 room A, block A418, No. 5, East Road, Haidian District, Beijing Patentee after: Aipeix Sci. & Tech, (Beijing) Co., Ltd. Address before: 100085 room A, block A418, No. 5, East Road, Haidian District, Beijing Patentee before: Guo Xiufeng |
|
| AV01 | Patent right actively abandoned |
Effective date of abandoning: 20080730 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |