Method for reducing rephosphorization amount of secondary tapping of converter

• Main Authors: CHEN GUOQUAN, ZHANG JIEXIN, LIU XIANGDONG, LIU YIBIN, HU CHANGZHI, WANG QIUSEN
• Format: Patent
• Language: Chinese; English
• Published: 02.01.2024
• Subjects: CHEMISTRY; METALLURGY; METALLURGY OF IRON; PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OFWROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS

The invention belongs to the field of steelmaking continuous casting, relates to a method for reducing the rephosphorization amount of secondary tapping of a converter, and aims to solve the problem that the rephosphorization amount of secondary tapping is too much, a tilting low-speed area of a tapping position is recovered to a high speed under the condition that a slag stopping cap is worn, so that a slag layer in the converter quickly crosses a tapping hole, and the purpose of reducing the slag discharge amount is achieved. 本发明属于炼钢连铸领域，涉及一种减少转炉二次出钢回磷量的方法，为解决二次出钢回磷偏多的问题，在戴好挡渣帽的情况下，将出钢位倾动的低速区恢复到高速，使炉内的渣层快速越过出钢口，达到减少下渣量的目的。