Raw material requirements for making high carbon ferrochrome
High carbon ferrochrome supplier explanation: high carbon ferrochrome production methods have electric furnace method, vertical furnace (blast furnace) method, plasma method and melt reduction method, and only the use of electric furnace can produce clean alloy. However, in order to smelt high quality high carbon ferrochrome, high carbon ferrochrome manufacturers will have very high requirements for raw materials, the main requirements are the following:
Harmful impurities in raw materials: impurities in raw materials contain harmful sulfur and phosphorus, if they get into ferrochrome, it will affect the quality of steel and steel.
Whether the particle size of raw material is suitable has a great influence on the smelting process. The raw material particle size is too large to be melted, but also the reason is difficult, the electrical conductivity increases, the slag volume increases, the furnace condition deteriorates, the smelting of the technical and economic indicators deteriorated.
Grade and purity of raw materials: smelting requires the highest possible grade of raw materials. The raw materials with high purity can achieve high yield, qualified and low consumption.
The drying of raw materials is also very important, especially the need for drying coke. Coke porosity is large, so strong water absorption. The fluctuation of water in coke first affects the accuracy of the fixed carbon ratio in the charge, and then the evaporation of water also consumes heat. 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 increase rapidly, and there may be an explosion accident.
