1) Boiling occurs when wet furnace materials are mixed with furnace materials, resulting in uneven gas escape and a large amount of furnace materials being sprayed out; Magnesia contains water and can also be sprayed as a sand pit.
2) The mixture of furnace materials is uneven, and the smelting process is also uneven.
3) Low unit heat distribution, slow reaction, and long smelting time. The reason is that the reducing agent is insufficient, the heat generation is low, or the preheating temperature of the furnace material is low, forming a cold stroke for smelting. There is a lot of slag sticking at the bottom of the iron ingot, and there are many iron particles in the slag or poor fusion of the iron ingot, which is relatively loose or contains slag.
4) High unit heat distribution or preheating temperature leads to intense reactions, stirring of slag, resulting in slag spraying. The iron ingot is hard and not easy to break, and the aluminum content of the iron ingot is high, resulting in a decrease in production.
