Proceedings of the KIEE Conference (대한전기학회:학술대회논문집)

The Korean Institute of Electrical Engineers (대한전기학회)
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A Study on the Automation of the $N_2$ Splash Slag Coating System

$N_2$ Splash Slag Coating 시스템 자동화 연구

  • 장필장 (홍익대학교 전기정보제어공학과) ;
  • 이기성 (홍익대학교 전기정보제어공학과) ;
  • 신동철 (포스코건설) ;
  • 조현철 (경북전문대학 디지털전자정보과)
  • Published : 2002.11.30
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Abstract

A study on the system automation for the nitrogen splash slag coating in Basic Oxygen Blowing Furnace (BOF) is described. The engineers are trying to do their best efforts to increase the life of converter lining by developing improved refractory material and optimal operation techniques in the steel plants, A new slag coating method is needed to reduce the erosion rates of the refractory. In the current slag costing method, the BOF was swung back and forth. The new method uses the oxygen lance to blow the residual slag to the walls and cone of the converter. The nitrogen gas is used for blowing. This method is developed based on the automation process at factory in POSCO dated on the May 1998. The test results of nitrogen splash slag coating system for the BOF at POSCO are show to show the effectiveness of the system.

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