Situational model of technological operations for secondary metallurgy
Journal Title: Journal of Achievements in Materials and Manufacturing Engineering - Year 2018, Vol 1, Issue 89
Abstract
Purpose: The aim of this study was development of a computer situational model of heat and power processes and transport operations for secondary steelmaking (SSM) to evaluate the effectiveness of the proposed SSM energy regimes and minimization the consumption of energy resources. Design/methodology/approach: For the solution of the tasks were used next methods: analytical and statistical methods of mathematical modeling; method of dynamic programming for the development of technological recommendations for energy modes on LF; Harel state charts to evaluate the effectiveness of the applied models. Findings: In order to provide rational energy regimes for SSM, it is necessary to introduce a new controlled parameter - the optimum time to start heating the melt at the ladle furnace unit (LF), which is determined by solving the dynamic programming task. The melt heating start time must be selected in such a way as to ensure that all the necessary technological operations are performed during metal processing in the LF, taking into account schedule constraints, and that the heating of the metal must be carried out with the maximum energy efficiency. Research limitations/implications: The main objective of the present study was to apply the mathematical modeling methods to ensure rational energy regimes of SSM. Practical implications: The developed situational model of technological operations for SSM will allow finding reserves to increase the productivity and quality of the process, and to evaluate the effectiveness of new technological solutions. Originality/value: To ensure an energy-efficient treatment of steel in LF, it is necessary: the time for starting the heating of the metal is chosen such that the energy efficiency of the LF, which depends on the thickness of the slag layer, is maximum at each stage; increase the power that is supplied to the heating of the melt by switching the voltage taps of the transformer as the thickness of the slag cover increases.<br/><br/>
Authors and Affiliations
O. Zhadanos, I. Derevyanko, D. Chaika
Keywords
Related Articles
- EP ID EP399483
- DOI 10.5604/01.3001.0012.6669
- Views 92
- Downloads 0
Laser treatment with 625 Inconel powder of hot work tool steel using fibre laser YLS-4000
Purpose: The purpose of this investigation was to determine the changes in the surface layer (Inconel 625), obtained during the laser treatment of tool-steel alloy for hot work by the use high-power fibre laser. Design/m...
Low friction MoS[sub]2[/sub](Ti, W) coatings with a Ti interlayer, magnetron sputtered on silumin
Purpose: The paper presents results of the selected mechanical and tribological propertiesof the low friction MoS2(Ti,W) coatings with a Ti interlayer deposited by magnetron sputteringmethod on silumin.Design/methodology...
Design of modernization of control valves for the counter-bending forces regulation in finishing mill
Purpose: The aim of this paper is design of modernization of control valves of finishing mill to control the counter-bending forces on the last stands by replacement of proportional valves with regulating ones. Design/me...
Investigation of mechanical properties of MIG-brazed joints of DP600 steel plates using different working angle
Purpose: In this study, DP 600 (Dual Phase) steel plates having 1 mm thickness were joined by copper-based (CuAl8) wire in gas metal arc brazing technique. Specimens were prepared in joining forms as overlap joint. Desig...
Investigation of mechanical properties of MIG-brazed joints of DP600 steel plates using different working angle
Purpose: In this study, DP 600 (Dual Phase) steel plates having 1 mm thickness were joined by copper-based (CuAl8) wire in gas metal arc brazing technique. Specimens were prepared in joining forms as overlap joint. Desig...