Iron smelting requires many raw materials, and each raw material must be determined according to the regulations, otherwise the results will be affected. One of the raw materials is silica. What are the requirements for the particle size of silica in ferrosilicon smelting?
If the particle size is too large, the reaction speed will slow down. If the particle size is too small or there are too many powders, the air permeability of the material surface will be affected. Silica with more powder is also brought into the soil, increasing the amount of slag. Production certificate: the silica used in the hot furnace of large siliceous iron ore is required to have a particle size of 60 ~ 120mm, of which the particle size greater than 80mm is greater than 50%. Small ferrosilicon furnace requires silica particle size of 25 ~ 80mm, of which 50% is greater than 40mm.
