| 摘要 |
PURPOSE: A lance assembly, furnace having lance assembly, and method for producing steel using the same are provided to improve the reactivity of quicklime by directly putting quicklime into molten metal. CONSTITUTION: A lance assembly comprises a first lance(111), a second lance(112) and an attachment member. The first lance comprises a first through hole for putting quicklime into molten metal. The second lance comprises a second through hole, for putting a carbonizing material, and a third through hole, for putting oxygen. The attachment member is attached to the first lance and the second lance. The attachment member makes the first lance and the second lance to have a fixed interval. The attachment member is a bracket which is attached to the first lance and the second lance. |
