Automatic Slag Door Practice ; Achievements & Developments Based on 7 Years of Experience

oleh Andrea Lanari

Penerbit - SMS group S.p.A., Tarcento (UD), Italy

Kategori - Kejuruteraan & IT

After 7 years and more than 10 installations worldwide, the results achieved by Condoor® –automatic slag door by SMS Group- are presented as well as the lessons learnt that led to the present technical solution through three major steps, summing up hundreds of technical improvements, each born from steelmakers’ experiences and requirements. Starting point for the new developments are the proven performances achieved and the fast Return-On-Investment, driven by remarkable savings in: - Energy consumption - Electrodes consumption - Power-off time Developed essentially for safety requirements, Condoor® turned out to be an efficient solution and a key Technological Module of the modern Electric Arc Furnace concept by SMS Group. In the past years a survey of the plants was carried out in order to define the new roadmap for its constant upgrade. Today, SMS Group counts more than ever on Condoor® to provide a safer, sustainable and efficient electric steel making process. This paper describes the current status of the installations and introduces new technical details and operating results. A specific focus is dedicated to Electric Arc Furnaces based on flat bath operations, where the proper control of de-slagging is a key factor for process and operation quality. After 7 years and more than 10 installations worldwide, the results achieved by Condoor® –automatic slag door by SMS Group- are presented as well as the lessons learnt that led to the present technical solution through three major steps, summing up hundreds of technical improvements, each born from steelmakers’ experiences and requirements. Starting point for the new developments are the proven performances achieved and the fast Return-On-Investment, driven by remarkable savings in: - Energy consumption - Electrodes consumption - Power-off time Developed essentially for safety requirements, Condoor® turned out to be an efficient solution and a key Technological Module of the modern Electric Arc Furnace concept by SMS Group. In the past years a survey of the plants was carried out in order to define the new roadmap for its constant upgrade. Today, SMS Group counts more than ever on Condoor® to provide a safer, sustainable and efficient electric steel making process. This paper describes the current status of the installations and introduces new technical details and operating results. A specific focus is dedicated to Electric Arc Furnaces based on flat bath operations, where the proper control of de-slagging is a key factor for process and operation quality.

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