| Autor: |
Kotov, K., Saksaganskii, A., Ogurtsov, A., Goncharova, N., Taits, N., Gol'dfarb, É., Rezchik, V., Gres, L. |
| Zdroj: |
Refractories; 1968, Vol. 9 Issue 3/4, p224-227, 4p |
| Abstrakt: |
Experience with the use of dinas in the upper zone of blast furnace stove checkers showed that, at a hot blast temperature of 900-1000°C and with a temperature of up to 1200°C in the gases under the cupola, the dinas practically preserved its refractoriness and strength in four years operation; cracking was slight and the checker channels were completely preserved. When these cupola conditions prevailed, the structure of the top 60-65 rows of checker (9-9.5 m), made from dinas is quite adequate, and the underlying rows of firebrick were in an excellent state. Fluxing oxides falling into the stoves from the blast gas and air used for combustion, and also from moist blast gas, reduce the refractoriness of the changed zones of the dinas, but only by 30-40°C. It is necessary to study carefully the behavior of dinas in these conditions at higher subcupola gas temperatures, say at up to 1400-1500°C. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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