The blast furnace tap hole is the channel for the outflow of hot metal and slag. The refractory castables used are subject to several factors
1. Severe scouring and erosion of flowing high-temperature molten iron and slag
2. Chemical erosion of blast furnace slag
3. Severe thermal shock effect of intermittent tapping
In view of the above damage factors, the castable for iron trench must have the following characteristics.
1. Strong resistance to erosion and erosion of hot metal and slag
2. Excellent high-temperature resistance and wear resistance
3. Strong chemical resistance to high-temperature slag
4. Good thermal shock resistance, stable volume, and small change in re-burning line
5. Strong resistance to various oxidation
6. It is easy to construct, does not produce harmful gases, and is conducive to environmental protection
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Email:wp@cnjingganrefractory.com/sdwenping@163.com
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