CN201553744U - Blast furnace top gas igniter - Google Patents
Blast furnace top gas igniter Download PDFInfo
- Publication number
- CN201553744U CN201553744U CN2009200169052U CN200920016905U CN201553744U CN 201553744 U CN201553744 U CN 201553744U CN 2009200169052 U CN2009200169052 U CN 2009200169052U CN 200920016905 U CN200920016905 U CN 200920016905U CN 201553744 U CN201553744 U CN 201553744U
- Authority
- CN
- China
- Prior art keywords
- gas
- pipe
- blast furnace
- compressed air
- coke
- 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 - Fee Related
Links
- 238000000034 method Methods 0.000 abstract description 4
- 238000013016 damping Methods 0.000 abstract description 2
- 239000000571 coke Substances 0.000 abstract 2
- 238000002347 injection Methods 0.000 abstract 1
- 239000007924 injection Substances 0.000 abstract 1
- 239000003034 coal gas Substances 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 2
- 229910000805 Pig iron Inorganic materials 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
Images
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- Coke Industry (AREA)
Abstract
The utility model relates to a blast furnace top gas igniter, which is characterized in that a compressed air pipe and a coke oven gas pipe which are connected with an air source are respectively communicated with the middle parts of a transverse pipe of a positive U-shaped pipe and a reverse U-shaped pipe which are oppositely arranged in parallel at notches, and four vertical pipes of the positive U-shaped pipe and the reverse U-shaped pipe are respectively drilled with at least 6 gas injection holes. After the blast furnace is stopped, an igniter which adjusts the ratio of the coke oven gas and the compressed air is put above the charge level in the furnace from a manhole at the top of the blast furnace, and then the gas in the furnace can be ignited. The whole ignition process only needs 30 minutes, 1.5 hours ahead of the conventional ignition mode, and the damping down time of the blast furnace is shortened.
Description
Technical field
The utility model belongs to portfire, is specifically related to a kind of lighter for ignition that blast furnace furnace roof raw gas is lighted of being used for.
Background technology
Behind the blast furnace staying, the raw gas of generation in the production process or the relative dense part that leaks must be handled.In the raw gas treating processes, the processing of the coal gas that the blast furnace furnace roof is produced is exactly to take the method for lighting with naked light, so that its burning totally, avoids presence of fire and other accidents, guarantees furnace roof operating personnel's safety.At present, when carrying out furnace roof igniting operation, what generally adopt is that oilcloth or coke-oven gas fire bowl are lighted a fire.Because the coal gas amount of blast furnace furnace roof is all relative with combustion-supporting air quantity less, so ignition time is long, generally needs to prove effective in 2 hours, thereby has prolonged the blast furnace staying time, has directly influenced the operating rate of blast furnace.
Summary of the invention
The purpose of this utility model is exactly at the problems referred to above, aim to provide a kind of simple, safe and efficient, the top gas portfire that can shorten ignition time.
For this reason, the solution taked of the utility model is:
A kind of top gas lighter for ignition, be with connect the compressed air pipe of source of the gas and coke-oven gas pipe turn on respectively recess in opposite directions, the transverse tube middle part of positive and negative two " U " shape pipes of being set up in parallel, be drilled with at least 6 gas orifices respectively on four vertical tubes of positive and negative two " U " shape pipes.
Be respectively equipped with by-pass valve control on described compressed air pipe and the coke-oven gas pipe.
Behind the blast furnace staying, the coke-oven gas pipe of the lighter for ignition of the utility model and the by-pass valve control on the compressed air pipe are opened, light coke-oven gas, open big coke-oven gas and compressed air require gradually, after adjusting coke-oven gas and compressed-air actuated proportioning, again lighter for ignition is put into charge level top in the stove from blast furnace furnace roof manhole, can puts coal gas in the burner.Whole ignition process only needs 30 fens clock times, has shifted to an earlier date 1.5 hours than conventional sparking mode, has shortened the blast furnace staying time relatively, has reduced the pig iron loss that brings because of damping down, has tangible economic benefit.Igniter structure is simple, and operation is safe and reliable easily, but self manufacture.
Description of drawings
Fig. 1 is a top gas lighter for ignition front view.
Fig. 2 is the left view of Fig. 1.
Fig. 3 is the vertical view of Fig. 1.
Among the figure: compressed air pipe 1, coke-oven gas pipe 2, vertical tube 3, gas orifice 4, transverse tube 5.
Embodiment
Below, the utility model is described in further detail in conjunction with the accompanying drawings.
The utility model mainly is made up of a compressed air pipe 1, a coke-oven gas pipe 2 and two " U " shapes pipe institutes.From Fig. 1, lighter for ignition profile similar " fly swatter "; Fig. 2 side-looking is a rectangle that does not seal; Fig. 3 is then as a pair of " spade handle ".
The termination of lighter for ignition be two recesses in opposite directions, be set up in parallel " U " shape pipe, each " U " shape pipe is formed by a transverse tube 5 and two vertical tubes 3, and respectively is drilled with 9 gas orifices 4 on four vertical tubes 3, is used to spray coke-oven gas and combustion air.Transverse tube 5 middle parts of forward (recess upwards) " U " shape pipe connect coke-oven gas pipe 2; Oppositely the middle part of the transverse tube 5 of (recess is downward) " U " shape pipe connects compressed air pipe 1.Compressed air pipe 1, coke-oven gas pipe 2 the other ends are connected on external compression air source of the gas and the coke-oven gas source of the gas separately.In addition, on compressed air pipe 2 and coke-oven gas pipe 2, also be separately installed with by-pass valve control, so that control air and gas flow.
Claims (2)
1. top gas lighter for ignition, it is characterized in that, connect the compressed air pipe of source of the gas and coke-oven gas pipe turn on respectively recess in opposite directions, the transverse tube middle part of positive and negative two " U " shape pipes of being set up in parallel, be drilled with at least 6 gas orifices respectively on four vertical tubes of positive and negative two " U " shape pipes.
2. top gas lighter for ignition according to claim 1 is characterized in that, is respectively equipped with by-pass valve control on compressed air pipe and coke-oven gas pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200169052U CN201553744U (en) | 2009-08-25 | 2009-08-25 | Blast furnace top gas igniter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200169052U CN201553744U (en) | 2009-08-25 | 2009-08-25 | Blast furnace top gas igniter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201553744U true CN201553744U (en) | 2010-08-18 |
Family
ID=42613418
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009200169052U Expired - Fee Related CN201553744U (en) | 2009-08-25 | 2009-08-25 | Blast furnace top gas igniter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201553744U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103017198A (en) * | 2012-12-30 | 2013-04-03 | 大冶特殊钢股份有限公司 | Simple reinforced type blast furnace top burning torch |
-
2009
- 2009-08-25 CN CN2009200169052U patent/CN201553744U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103017198A (en) * | 2012-12-30 | 2013-04-03 | 大冶特殊钢股份有限公司 | Simple reinforced type blast furnace top burning torch |
| CN103017198B (en) * | 2012-12-30 | 2014-11-26 | 大冶特殊钢股份有限公司 | Simple reinforced type blast furnace top burning torch |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100818 Termination date: 20150825 |
|
| EXPY | Termination of patent right or utility model |