Optimization of power input diagram of 50 t UHP-EAF

Jingshe Li Runzao Liu, Shiqi Li, Jun Wu, Guli Jiang, Qingshuo Wei, and Dong Wang1) Metallurgical and Ecological Engineering School, University of Science and Technology Beijing, Beijing 100083, China2) Fushun Special Steel Co. Ltd., Fushun 113001, China

摘 要：<正> In order to improve operation for shortening tap to tap time and saving electrical energy, on the base of no-linear reactance model, the electrical characteristics of the 50 t UHP-EAF in Fushun Special Steel Co. Ltd. were analyzed. Considering steelmaking process conditions, the optimum power-input diagrams were investigated, which can save energy, lower consumption, and raise productivity. This has been verified by production contrast tests. Application of the optimum curve in 50 t UHP-EAF indicates that research method is correct, the 50 t UHP-EAF runs smoothly with lowering electrical energy by 29.35 kW·h/t and shortening power on time by 3 min. The general steps of making optimum power-input specification is also given.

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