What are the requirements for the raw material silica of ferrosilicon 

Silicon ferrosilicon smelting requires a lot of raw materials, each raw material must be determined in accordance with the regulations, otherwise it will affect the results, one of the raw materials is silica. What are the requirements for the particle size of silica in ferrosilicon smelting? The following Anyang Yucheng Xin ferroalloy is briefly explained:

Too large particles, slowing down the reaction speed, too small particles or more powder, will affect the permeability of the surface. Silica with a lot of powder also brings more into the soil, which increases the amount of slag. Proof of production: Silica for large ferrite hot furnaces requires a particle size of 60 to 120 mm, of which more than 80 mm is greater than 50%. Small silicon iron furnace requires a silica particle size of 25 to 80 mm, of which more than 40 mm accounts for 50%.

The above are some suggestions from Kangxin International Metallurgy, I hope to help you!