Electromagnetism and the Arc Efficiency of Electric Arc Steel Melting Furnaces

Abstract

Results of analytically studied effect of electromagnetic blowing and the slag height on the arc efficiency are stated. An arc is blown from under an electrode toward the furnace walls under an electromagnetic force, arc radiation on the wall and roof increase and effective output, absorbed by the metal decreases. EAF (electric arc steel melting furnace) with independently powered arcs, eliminating its electromagnetic blowing is proposed. When arcs are powered independently, its efficiency increases significantly, and specific energy consumption decreases.

Power Quality Measurement and Analysis in Electric Arc Furnace for Turkish Electricity Transmission System

“…If these conditions cannot be provided the short circuit power of the network at the common connection point of the EAF system should be increased. 4. In order to reduce flicker effect, electric arc current can be reduced and in this method series reactors are commonly used.…”

“…Requirement of some new technologies has come out in parallel with increasing EAF capacities. Therefore, it is necessary to use cooling systems in furnace linings [4], O2 burners for fast melting [5], electrode checking with automatic control systems [6], 7] and computer systems to control other processes. Although EAFs have many advantages in iron-steel production, they cause power quality problems because of their nonlinear working characteristics [8]- [15].…”

Reasonable application analysis of Casnter graphitization furnaces according to the demands of modern market

“…Анализ литературных источников показывает, что в настоящее время более 40 % всей стали в мире плавится в дуговых сталелитейных печах, и этот показатель с каждым годом растет [2,3]. Себестоимость произведенной таким образом стали напрямую зависит от количества использованной энергии и графитированных электродов [4].…”

Laws of Heat Radiation from Spherical Gas Volumes. Part I. Laws Formulation

“…Some of the credit for energy savings at metallurgical plants, reduction fuel consumption for the production of this energy belongs to the author of this article, the developer of rational methods of calculating heat transfer in electric arc furnaces. The developer of the new concepts and techniques with students continue to develop new cost-effective ways for smelting steel in ASFs [11]. In 2001-16 the author continued investigation of heat radiation from torches of furnaces, burners, combustion chambers, symmetrical radiating gas volumes.…”