A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
The invention discloses blast-furnace stemming for a tapping hole. The blast-furnace stemming is characterized by being prepared from the following ingredients in parts by weight: 15 to 20 parts of 3-1mm magnesia-chrome spinel, 5 to 8 parts of 1-0mm corundum, 10 to 15 parts of 1-0mm sillimanite, 8 to 15 parts of 0.5-0mm magnesium oxide iron, 8 to 13 parts of clay powder, 3 to 7 parts of cobalt oxide aluminum powder, 5 to 10 parts of cutting powder, 7 to 25 parts of graphite powder, 5 to 10 parts of compound carbon powder, 0 to 1 part of cobaltosic oxide powder and 1 to 2 parts of medium temperature asphalt. The stemming has the advantages that the hole diameter of the tapping hole can be protected to be stable and to be not easily changed; the tapping is stable; in addition, in the long-time storage process of the stemming, the use performance and the operation performance are not lowered.
The invention discloses blast-furnace stemming for a tapping hole. The blast-furnace stemming is characterized by being prepared from the following ingredients in parts by weight: 15 to 20 parts of 3-1mm magnesia-chrome spinel, 5 to 8 parts of 1-0mm corundum, 10 to 15 parts of 1-0mm sillimanite, 8 to 15 parts of 0.5-0mm magnesium oxide iron, 8 to 13 parts of clay powder, 3 to 7 parts of cobalt oxide aluminum powder, 5 to 10 parts of cutting powder, 7 to 25 parts of graphite powder, 5 to 10 parts of compound carbon powder, 0 to 1 part of cobaltosic oxide powder and 1 to 2 parts of medium temperature asphalt. The stemming has the advantages that the hole diameter of the tapping hole can be protected to be stable and to be not easily changed; the tapping is stable; in addition, in the long-time storage process of the stemming, the use performance and the operation performance are not lowered.
Blast-furnace stemming for tapping hole
ZHANG TING (author)
2016-01-20
Patent
Electronic Resource
English
IPC:
C04B
Kalk
,
LIME