CN103206709A - Blast furnace gas burner structure - Google Patents
Blast furnace gas burner structure Download PDFInfo
- Publication number
- CN103206709A CN103206709A CN2013101311268A CN201310131126A CN103206709A CN 103206709 A CN103206709 A CN 103206709A CN 2013101311268 A CN2013101311268 A CN 2013101311268A CN 201310131126 A CN201310131126 A CN 201310131126A CN 103206709 A CN103206709 A CN 103206709A
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- Prior art keywords
- blast furnace
- furnace gas
- sprue
- gas burner
- main passage
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Abstract
The invention provides a blast furnace gas burner structure which is simple in structure and not structurally fragile and which ensures sufficient combustion of blast furnace gas and coal dust mixture and high heat efficiency. The blast furnace gas burner structure comprises a main passage characterized in that a blast furnace gas inlet pipe is disposed at an inlet of the main passage, a partition is disposed at the part of the blast furnace gas inlet pipe, connected with the inlet of the main passage, and is evenly provided with air holes, a blast furnace gas pipe is sleeved on the air holes and leads to an outlet of the main passage, the side of the main passage is provided with a side opening, and the side opening is provided with an air inlet.
Description
Technical field
The present invention relates to the technical field of boiler structure, be specially a kind of blast furnace gas burner structure.
Background technology
Blast furnace gas (BFG) is the byproduct that produces in the ironmaking processes, cube blast furnace gas surplus one ton of pig iron of every production will produce 2000, Lower heat value extremely low (LHV 2931KJ/Nm3).Its composition can be divided into the ratio of combustible constituent (carbon monoxide and hydrogen) and inert region (carbon dioxide and nitrogen).Because the blast furnace gas calorific capacity is extremely low, theoretical temperature combustion is low, a little less than the self-stable ability of Fire Radiation and flame combustion, be difficult to smooth combustion, mix burning blast-furnace gas in the coal-powder boiler so there are a lot of enterprises to be chosen in, but existing structure of mixing blast furnace gas in the pulverized-coal fired boiler, it all need arrange a plurality of swirl vanes in burner, its complex structure, and swirl vane is fragile, cause the undercompounding of follow-up blast furnace gas and coal dust, thereby make the thermal efficiency low.
Summary of the invention
At the problems referred to above, the invention provides a kind of blast furnace gas burner structure, it is simple in structure, structure is not fragile, guarantees the mixed sufficient combustion of blast furnace gas and coal dust, makes thermal efficiency height.
A kind of blast furnace gas burner structure, its technical scheme is such: it comprises sprue, it is characterized in that: the porch of described sprue is provided with the blast furnace gas inlet tube, the junction of the entrance of described blast furnace gas inlet tube and described sprue is provided with division board, be evenly equipped with air-vent on the described division board, be set with the blast furnace gas pipe on the described air-vent, described blast furnace gas pipe is communicated to the exit of described sprue, the sidepiece of described sprue has the side mouth, and described side mouth is provided with air intake.
It is further characterized in that: the adjacent described blast furnace gas pipe that is positioned at described sprue exit is welded to each other the back by weldment and forms an overall structure, the described integrally-built inwall that is welded to connect described sprue all around by weldment.
After adopting structure of the present invention, blast furnace gas burner is arranged in the bight of burner hearth together with main burner, burner itself does not arrange swirl vane, blast furnace gas is communicated to behind the exit of sprue by uniform blast furnace gas pipe and air mixes, mixed airflow enters that the wind powder with main burner forms tangential firing together behind the burner hearth, and it is simple in structure, and the blast furnace gas pipe is not fragile, guarantee the mixed sufficient combustion of blast furnace gas and coal dust, make thermal efficiency height.
Description of drawings
Fig. 1 is front view structural representation of the present invention;
Fig. 2 is right view structural representation of the present invention (removal air intake).
The specific embodiment
See Fig. 1, Fig. 2, it comprises sprue 1, the porch of sprue 1 is provided with blast furnace gas inlet tube 2, the junction of 1 entrance of blast furnace gas inlet tube 2 and sprue is provided with division board 3, be evenly equipped with air-vent 4 on the division board 3, be set with blast furnace gas pipe 5 on the air-vent 4, blast furnace gas pipe 5 is communicated to the exit of sprue 1, the sidepiece of sprue 1 has the side mouth, and the side mouth is provided with air intake 6.The adjacent blast furnace gas pipe 5 that is positioned at sprue 1 exit is welded to each other the back by weldment 7 and forms an overall structure, the integrally-built inwall that is welded to connect sprue 1 all around by weldment 7.
Claims (2)
1. blast furnace gas burner structure, it comprises sprue, it is characterized in that: the porch of described sprue is provided with the blast furnace gas inlet tube, the junction of the entrance of described blast furnace gas inlet tube and described sprue is provided with division board, be evenly equipped with air-vent on the described division board, be set with the blast furnace gas pipe on the described air-vent, described blast furnace gas pipe is communicated to the exit of described sprue, the sidepiece of described sprue has the side mouth, and described side mouth is provided with air intake.
2. a kind of blast furnace gas burner structure according to claim 1, it is characterized in that: the adjacent described blast furnace gas pipe that is positioned at described sprue exit is welded to each other the back by weldment and forms an overall structure, the described integrally-built inwall that is welded to connect described sprue all around by weldment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013101311268A CN103206709A (en) | 2013-04-16 | 2013-04-16 | Blast furnace gas burner structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013101311268A CN103206709A (en) | 2013-04-16 | 2013-04-16 | Blast furnace gas burner structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103206709A true CN103206709A (en) | 2013-07-17 |
Family
ID=48754021
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013101311268A Pending CN103206709A (en) | 2013-04-16 | 2013-04-16 | Blast furnace gas burner structure |
Country Status (1)
| Country | Link |
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| CN (1) | CN103206709A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201787576U (en) * | 2010-07-21 | 2011-04-06 | 河北钢铁股份有限公司邯郸分公司 | Coal gas burner capable of improving combustion efficiency |
| DE102011051665A1 (en) * | 2010-07-09 | 2012-01-12 | General Electric Company | Combustion chamber and method of reducing combustion chamber creeping |
| CN102759103A (en) * | 2012-07-17 | 2012-10-31 | 石家庄市新华工业炉有限公司 | Radiation heater |
| CN203223915U (en) * | 2013-04-16 | 2013-10-02 | 无锡华光锅炉股份有限公司 | Blast furnace gas burner structure |
-
2013
- 2013-04-16 CN CN2013101311268A patent/CN103206709A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102011051665A1 (en) * | 2010-07-09 | 2012-01-12 | General Electric Company | Combustion chamber and method of reducing combustion chamber creeping |
| CN201787576U (en) * | 2010-07-21 | 2011-04-06 | 河北钢铁股份有限公司邯郸分公司 | Coal gas burner capable of improving combustion efficiency |
| CN102759103A (en) * | 2012-07-17 | 2012-10-31 | 石家庄市新华工业炉有限公司 | Radiation heater |
| CN203223915U (en) * | 2013-04-16 | 2013-10-02 | 无锡华光锅炉股份有限公司 | Blast furnace gas burner structure |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20130717 |