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Special stemming for small blast furnace iron making
The invention discloses special stemming for small blast furnace iron making. The special stemming is characterized in that the stemming for iron making is prepared from, by weight, 15-20 parts of 3-1mm chromium nitride, 5-8 parts of 1-0mm sialon, 10-15 parts of 1-0mm pyrophyllite, 8-15 parts of 0.5-0mm magnesium oxide iron, 8-13 parts of partial clay powder, 3-7 parts of cobalt oxide aluminum powder, 5-10 parts of cutting powder, 7-25 parts of crystalline flake graphite powder, 5-10 parts of composite carbon powder, 0-1 part of strontium carbonate powder and 1-2 parts of mid-temperature pitch powder. According to the stemming, a tapping hole can be protected to be stable in hole diameter and not prone to aging, iron tapping is stable, and in addition, the use performance and operating performance of the stemming are not reduced in the long-term storage process.
Special stemming for small blast furnace iron making
The invention discloses special stemming for small blast furnace iron making. The special stemming is characterized in that the stemming for iron making is prepared from, by weight, 15-20 parts of 3-1mm chromium nitride, 5-8 parts of 1-0mm sialon, 10-15 parts of 1-0mm pyrophyllite, 8-15 parts of 0.5-0mm magnesium oxide iron, 8-13 parts of partial clay powder, 3-7 parts of cobalt oxide aluminum powder, 5-10 parts of cutting powder, 7-25 parts of crystalline flake graphite powder, 5-10 parts of composite carbon powder, 0-1 part of strontium carbonate powder and 1-2 parts of mid-temperature pitch powder. According to the stemming, a tapping hole can be protected to be stable in hole diameter and not prone to aging, iron tapping is stable, and in addition, the use performance and operating performance of the stemming are not reduced in the long-term storage process.
Special stemming for small blast furnace iron making
SHAN GUOQIANG (author)
2016-02-17
Patent
Electronic Resource
English
IPC:
C04B
Kalk
,
LIME
Anhydrous stemming for light iron-making blast furnace and preparation method of anhydrous stemming
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