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一、前言平炉炉底工作层,由镁砖层和烧结(或打结)层组成。出钢过程中,烧结层直接与熔融钢、渣接融,经受高温下,一系列化学侵蚀与物理冲刷,烧结层逐渐发生相变、软化及熔化成渣。当减薄到大于总厚度的1/2时,要用镁砂和铁皮烧结炉底,使其恢复到原来设计的厚度。这种修补炉底的工艺,称炼炉。用氧平炉炼钢的特点是:动力学和热力学条件较优越,其氧化速度是重油平炉的10倍;多冶炼优质低碳钢,钢和渣的氧化性强
First, the forehearth hearth bottom working layer, by the brick layer of magnesium and sintered (or knotted) layer. During the tapping process, the sintered layer directly contacts with the molten steel and slag, undergoes a series of chemical erosion and physical erosion under high temperature, and the sintered layer gradually undergoes phase transformation, softening and melting into slag. When thinning to more than 1/2 of the total thickness, use magnesia and iron to sinter the bottom of the furnace to bring it back to its original design thickness. This process to repair the hearth, said furnace. Oxygen hearth steelmaking is characterized by: superior kinetics and thermodynamics conditions, the oxidation rate is 10 times the heavy oil hearth; multi-smelting high-quality low-carbon steel, steel and slag oxidation