SLAG REMOVAL DEVICE AND SLAG REMOVAL METHOD
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United States of America Patent
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N/A
Issued Date -
Aug 27, 2015
app pub date -
Sep 10, 2013
filing date -
Sep 20, 2012
priority date (Note) -
Published
status (Latency Note)
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Abstract
Provided is a slag removal device for a blast furnace, capable of readily and reliably achieving slag removal using a simple device configuration, even when pulverized coal is used that has not had the softening temperature thereof adjusted, and capable of reducing as much as possible the risk of pipe damage, etc. The slag removal device for a blow pipe is provided in a blow pipe that injects auxiliary fuel pulverized coal together with hot air from a tuyere for a blast furnace main body that produces pig iron from iron ore. A jet nozzle that injects solids having a higher fusion point than the temperature in the vicinity of the tuyere and having a particle diameter greater than that of the pulverized coal, into pulverized coal that flows inside the blow pipe and into the hot air, is provided in the slag removal device.
First Claim
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Family
| Country | kind | publication No. | Filing Date |
|---|---|---|---|
| JP | B2 | JP6057642 | Sep 20, 2012 |
| CN | B | CN104641003 | Sep 10, 2013 |
| KR | A | KR20150044933 | Sep 10, 2013 |
| WO | A1 | WO2014045949 | Sep 10, 2013 |
| IN | A | IN2015DN02076 | Mar 13, 2015 |
International Classification(s)
- 2013 Application Filing Year
- F27D Class
- 250 Applications Filed
- 208 Patents Issued To-Date
- 83.20 % Issued To-Date
Cited Art Landscape
Patent Citation Ranking
- 0 Citation Count
- F27D Class
- 0 % this patent is cited more than
- 10 Age