What Are The Raw Materials For Smelting Ferrosilicon

Fused Alumina is the tooth of industry and is widely used in various industries. TAOANG is committed to sharing information on the upstream and downstream industries of fused alumina. Ferrosilicon is a combined iron alloy that is used in the production of iron alloys and in the chemical industry and is often used as a reducing agent. Now the ferrosilicon manufacturer introduces you to the raw materials for smelting ferrosilicon. Ferrosilicon is a ferrosilicon alloy made from coke, steel scrap, quartz (or silica) and smelted in an electric furnace. Carbonaceous reducing agent, the fixed carbon content in coke is more than 82%, the ash content is low, and the general requirement is less than 8%. The ash in the coke is too high, which makes it easy to slag and sinter the surface of the furnace, which affects the permeability of the material surface. The ash in the coke is also an important reason for the increase in the amount of slag in the furnace and the slag becoming sticky. Volatile content 6-12%. Coke with high volatile content generally has low mechanical strength, and at the same time, volatiles are easily escaped during heating. From the viewpoint of ensuring high fixed carbon and mechanical strength of coke, coke volatiles should be required to be lower. However, considering the high volatile coke, the specific resistance is usually high, so the volatile content is generally not limited. In the smelting process, maintaining a large enough high temperature zone in the furnace is an important condition for the smoothness of the furnace and the achievement of good technical specifications. The size of the high temperature zone in the furnace depends largely on the insertion depth of the electrode, the resistance of the charge, and especially It is an important reason that the specific resistance of coke is affecting the insertion depth of the electrode. The specific resistance is large, the electrode is inserted deep and stable, thereby expanding the crucible region, and the heat loss is small. The specific resistance of coke is mainly related to the particle size. The structure is related to the type. The particle size composition is suitable, coke; the particle size composition is an important factor affecting the specific resistance and gas permeability of the charge. The coke has a low specific resistance, a small reaction surface, and a low reduction ability. When the furnace is added into the furnace, the conductivity of the charge is strong. Difficult to insert, heat loss increases. The coke with small particle size has high specific resistance and large reaction surface. It is beneficial to deeply insert the electrode into the furnace, which is also beneficial to the reduction reaction. However, when the coke having a too small particle size is put into the furnace, the gas permeability of the material surface is deteriorated and the burning loss is severe. TAOANG also expects all viewers to share your insights and look forward to your information.