Iron Ore Processing for the Blast Furnace,Crushing the Iron Ore. iron ore processing for the blast furnace creating steel from low-grade iron ore requires feet are reduced to six inches or less. than 6,000 tons of taconite can be crushed in one hour. the crushed material is.Jan 18, 2020 Iron ore is a high-hardness rock, which is widely used in stone factories, mines, metallurgy, building materials, roads, railways, chemical industry, etc. The price of the 100tph iron ore crushing production line needs to be determined according to the specific configuration of the customer.