Energy efficient solutions for EAF steelmaking
Journal Title: Journal of Achievements in Materials and Manufacturing Engineering - Year 2018, Vol 1, Issue 88
Abstract
Purpose: To review an advanced solutions to improve the energy efficiency of electric arc furnace (EAF), and presentation of own new efficient low-cost solutions with regard to needs of electrometallurgical complex of Ukraine. Design/methodology/approach: Numerical simulation and industrial experiment is used. The patterns and parameters of heat and mass transfer processes, hydromechanics in a steelmaking bath of an arc furnace, thermal operation of water-cooled elements and gas dynamics in EAF workspace, are the subject scope of the paper. Findings: Energy-efficient solutions for steelmaking: bath geometry, design features of water-cooled elements (WCE), distributed aspiration system, and the mid-temperature scrap preheating. Research limitations/implications: Influence of the bath depth on heat and mass transfer and heat loss by radiation; influence of the spatial structure of WCE on heat loss by radiation; the dispersion of aspiration on the amount of fugitive emissions through electrode gaps are established. Practical implications: Grounds to improve EAF melting space, water-cooled elements, aspiration system and utilization of energy loss are obtained. Use of the set of solutions in 120-ton EAF can reduce energy consumption by 56-68 kWh/ton. Originality/value: The new concepts of deep steelmaking bath, WCE with spatial structure and system of dispersed aspiration of the EAF are elaborated.<br/><br/>
Authors and Affiliations
S. N. Timoshenko, A. P. Stovpchenko, Yu. V. Kostetski, M. V. Gubinski
Keywords
Related Articles
- EP ID EP392344
- DOI 10.5604/01.3001.0012.5867
- Views 84
- Downloads 0
Advances in winch system for defence applications
Purpose: Winch systems are commonly used in many applications starting from fishingindustries to highly advanced defence, space and nuclear sectors. This paper discussesadvances in development of winch system for defence...
Conditions of steady arc ignition in vacuum and hollow cathode operational life
Purpose: The aim of this paper is to determine the conditions of steady arc ignition invacuum and the effect some of the main operating parameters have on the life of tantalumfoilhollow cathodes.Design/methodology/approa...
Investigations on the joint properties of the friction welding of aluminium alloy tube to tube plate using an external tool
Purpose: Aluminium and its alloys are frequently used in structural applications due to their good welding ability as well as their high strength and corrosion resistance. Several developments hav...
Virtual laboratory methodology in scientific researches and education
Purpose: This article is presenting the Material Science Virtual Laboratory. Developed laboratory is an open scientific, investigative, simulating and didactic medium helpful in the realisation of the scientific and dida...
Synthesis and characterization of double phase metal nickelates/borates
Purpose: Purpose of this research is obtaining of metal nickelates and borates as doublephase. These types of compounds display extraordinary structural diversity caused by boronand nickel which applicable in flame retar...