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在出钢过程中,由炉门口观察到炉内渣子覆盖渣线,若出钢口较小和渣子流动性差,渣线处渣覆盖得更厚。 据考查我国大部分电炉炼钢厂,在出钢后,约10min就将镁砂沥青盐卤混和物补盖在有还原渣的渣线上。由于补炉镁砂被渣隔绝,不能与炉体镁砂烧结。当钢液温度较高时,补炉镁砂层下的渣熔化,补炉镁砂落入炉内,使炉渣粘稠,影响去磷去气,延长了冶炼时间。结果镁砂、人力、
During the tapping process, it is observed from the door of the furnace that the slag in the furnace covers the slag line. If the tapping hole is small and the flowability of the slag is poor, the residue at the slag line is covered more thickly. According to test most of our electric furnace steel mill, after tapping, magnesia bitumen mixture will be covered in about 10min on the slag line slag reduction. Magnesite due to the furnace slag was cut off, can not be sintered with the furnace magnesia. When the molten steel temperature is high, the slag melt under the magnesia fill furnace, make-up magnesia fall into the furnace, making the slag viscous, affecting the dephosphorization, prolonging the smelting time. Results Magnesia, manpower,