CUPOLA:-
It consists of a cylindrical steel shell with its interior lined with heat resisting fire bricks. There is a drop door at the bottom after closing which proper sand bed could be prepared. This sand bed provides proper refractory bottom for molten metal & coke. Above the sand bed, there is a metal tapping hole which will be initially closed with clay known as ”bot”. Opposite & above the metal tapping hole, there is a slag hole where slag is trapped. Above the slag hole, there is a wind box which is connected to air blowers. Air enters to the cupola through the tuyeres. Above the charging platform, there is a charging hole through which charge is put into the cupola. The charge consists of the pig iron, scrap iron, coke and fluxes.
It consists of a cylindrical steel shell with its interior lined with heat resisting fire bricks. There is a drop door at the bottom after closing which proper sand bed could be prepared. This sand bed provides proper refractory bottom for molten metal & coke. Above the sand bed, there is a metal tapping hole which will be initially closed with clay known as ”bot”. Opposite & above the metal tapping hole, there is a slag hole where slag is trapped. Above the slag hole, there is a wind box which is connected to air blowers. Air enters to the cupola through the tuyeres. Above the charging platform, there is a charging hole through which charge is put into the cupola. The charge consists of the pig iron, scrap iron, coke and fluxes.
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