Iron ore gas-fired furnace is a kind of hot-blast iron-making equipment that utilizes gas fuel to smelt iron ore. Under the reduction atmosphere in the furnace, iron ore pellets, lump ore and other iron concentrate materials can be directly reduced to smelt iron.
The iron ore that is needed to be produced during the process is generally hauled by powder concentrate or iron ore powder. The iron ore pelletizing process is carried out by appropriate sintering machines, and the iron ore powder direct resistance furnace processing furnace is added to the mixture to form a raw material fraction.
The process of iron ore gas-fired furnace is mainly divided into the following processes:
1. Pretreatment of raw materials. The iron ore pelletizing process is carried out by appropriate sintering machines, and the iron ore powder direct resistance furnace processing furnace is added to the mixture to form a raw material fraction. In general, these raw materials are pretreated through pre-sintering, pre-reduction operation, etc., which can reduce the strength and ensure that the material has a qualified chemical composition.
2. Burning of raw materials. The raw materials in the furnace will be burned in the presence of oxygen in the air, at the same time, the iron ore reduction produces the heat, which further strengthens the burning of the raw material.
3. Revival of iron. The burning of the raw materials will generate a hot gas in the furnace, which has a high temperature. Under this high temperature environment, the iron will gradually become hot and gradually revives.
4. Smelting of iron ore. As the temperature of the furnace rises, the iron ore will gradually melt in the furnace and become molten iron. Under the action of the load flowing in the furnace, the molten iron with impurities can appear on the surface.
5. Removal of impurities. The molten iron mixed with impurities finally enters the settling oven. With the action of the temperature Strap, the impurities in the molten iron will float to the surface and be discharged from the furnace.
6. Output of iron yield. After the operation of the settling oven, the impurity-free iron liquid is discharged from the bottom of the settling oven and is cooled after solidification to obtain high-quality pig iron.
Iron ore gas-fired furnace is widely used in steel production. It has the advantages of high production efficiency, advanced scientific and complete technical system, low energy consumption and environmental protection. It is beneficial to save energy and improve environmental protection, and promote the realization of sustainable development of the steel industry.
