What's the benefit of low silicon in ferro silicon?

The benefits of low [Si]

(1) For iron making: According to the statistics of many enterprises, every time [Si] decreases

0.1%, the pig iron production increased by 0.5% to 0.7%, and the fuel ratio decreased by 4 to 4%.

6kg/t, and it is conducive to the smooth and stable furnace conditions.

(2) For steelmaking: reduce the amount of slag-forming agent, shorten the blowing time,

Decreased O:digestion.

(3) Reduce the cost of iron making and steel making. According to some business statistics,

[Si] is reduced by 0.1%, the cost of ironmaking can be reduced by 4-5 t;

Low 10 ~ 14 t.