1. The raw material contains harmful impurities
Impurities in the raw material are harmful to sulfur and phosphorus, because their addition to ferrochrome will affect the quality of steel and steel.
2. Particle size of raw material
The particle size of raw material has a great influence on the smelting process. The raw material particles are too large to melt, increase the electrical conductivity, increase the amount of slag, furnace condition deterioration, affect the smelting of various technical and economic indicators.
3. Dryness of raw materials
Such as coke porosity is large, so the water absorption is very strong, which will affect the accuracy of the fixed carbon ratio in the charge, and the evaporation of water also consumes heat. When the material collapse, the wet material directly into the crucible area, absorb a lot of heat, will cause an increase in power consumption. After the wet coke is broken, the powder often blocks the mesh or makes the mesh smaller, the coke can not screen down, so that the powder in the coke increases. When wet coke is loaded into the closed furnace, it is easy to clog the material pipe and produce suspended material. When the material collapses, it will be brought into the air, and the pressure in the furnace will rise rapidly, and there may be an accident.
4. Purity of raw materials
In the process of smelting, raw materials with high quality and purity can be selected as far as possible to increase output and reduce consumption.
