Ferromanganese is an alloy of manganese and iron. The raw materials for its production are generally manganese ore, coke, and lime containing manganese, which are melted in a high-temperature environment and fully reacted to smelt ferromanganese. Since coke is added during smelting, ferromanganese contains a certain amount of carbon inside. Depending on the content of carbon, the amount of manganese Iron can also be divided into low carbon ferromanganese, medium carbon ferromanganese and high carbon ferromanganese.
low carbon ferro manganese
Ferromanganese smelting process:
(1) Blast furnace smelting is to smelt ferromanganese by putting raw materials into a blast furnace and heating coal to a certain temperature;
(2) Electric furnace smelting is a method that uses electric energy as fuel to quickly bring the raw materials to a certain temperature and fully react to smelt ferromanganese;
(3) Electric furnace refining: Medium and low carbon ferromanganese are generally desiliconized and refined using 1500-6000Kv·A electric furnaces. The raw materials are mainly manganese silicon, manganese-rich ore and lime;
medium carbon ferro manganese
(4) Oxygen blowing refining: Use pure oxygen to blow liquid carbon ferromanganese or manganese-silicon alloy columbium to obtain medium and low carbon ferromanganese.
