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The invention discloses a tap-hole clay for a blast furnace of 2200m3. The tap-hole clay is characterized by comprising the following components in parts by weight: 10-20 parts of sub-white corundum, 6-10 parts of titanium nitride, 8-15 parts of aluminum nitride, 10-20 parts of pyrophyllite raw ore, 1-3 parts of zirconium carbonate, 10-20 parts of ball clay, 2-4 parts of alumina powder, 12-20 parts of graphite powder, 0-1 parts of 525 silicate cement, 3-8 parts of ferro silicon nitride powder, 2-5 parts of anthracite duff, 3-8 parts of resin powder, 0.01-0.05 parts of polyether modified polysiloxane and 15-18 parts of additionally added binding agents. After the technical scheme is used, the tap-hole clay which is convenient to ram and resistant to corrosion of melted iron and allows melted iron to be discharged stably is obtained, and the problems that the quality of tap-hole clay used in a current blast furnace is poor, and as a result, a tap hole becomes shallow and the tap hole does not resist to washing and corrosion of the melted iron and is severely polluted are solved.
The invention discloses a tap-hole clay for a blast furnace of 2200m3. The tap-hole clay is characterized by comprising the following components in parts by weight: 10-20 parts of sub-white corundum, 6-10 parts of titanium nitride, 8-15 parts of aluminum nitride, 10-20 parts of pyrophyllite raw ore, 1-3 parts of zirconium carbonate, 10-20 parts of ball clay, 2-4 parts of alumina powder, 12-20 parts of graphite powder, 0-1 parts of 525 silicate cement, 3-8 parts of ferro silicon nitride powder, 2-5 parts of anthracite duff, 3-8 parts of resin powder, 0.01-0.05 parts of polyether modified polysiloxane and 15-18 parts of additionally added binding agents. After the technical scheme is used, the tap-hole clay which is convenient to ram and resistant to corrosion of melted iron and allows melted iron to be discharged stably is obtained, and the problems that the quality of tap-hole clay used in a current blast furnace is poor, and as a result, a tap hole becomes shallow and the tap hole does not resist to washing and corrosion of the melted iron and is severely polluted are solved.
Tap-hole clay for blast furnace of 2200m3
ZHANG TING (author)
2015-04-01
Patent
Electronic Resource
English
IPC:
C04B
Kalk
,
LIME
Tapping-hole clay for large blast furnace and preparation method thereof
| European Patent Office | 2016