Search for dissertations about: "BOF slag model"

Showing result 1 - 5 of 9 swedish dissertations containing the words BOF slag model.

2. 1. A study of some aspects of gas-slag-metal interactions : Towards dynamic process model and control

   Author : Mattias Ek; Sichen Du; Stuart Millman; KTH; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; BOF; process modeling; phosphorous capacity; penetration depth; slag foaming; mixing time; inclusion removal;

   Abstract : The present thesis deals with the development of a new type of dynamic model for metallurgical reactors. It also covers some of the theoretical aspects of steelmaking that is necessary to include in such an application. The thesis consists of modeling work, high temperature experiments and cold model experiments. READ MORE

4. 2. Mathematical and Physical Simulations of BOF Converters

   Author : Xiaobin Zhou; Mikael Ersson; Pär Jönsson; Hans-Jürgen Odenthal; KTH; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; BOF; physical model; mathematical model; mixing time; kinetic enregy; Materials Science and Engineering; Teknisk materialvetenskap;

   Abstract : The purpose of this study is to develop mathematical models to explore the mixing and its related phenomena in converter bath. Specifically, first, a mathematical model of a physical model converter, which was scaled down to 1/6th of a 30 t vessel, was developed in this study. READ MORE

5. 3. Fundamental Experimental and Numerical Investigation Focusing on the Initial Stage of a Top-Blown Converter Process

   Author : Mikael Ersson; Pär Jönsson; Stein-Tore Johanssen; KTH; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; numerical modeling; top-blown converter; BOF; CFD; Thermodynamics; slag; dynamic simulations; Metallurgical process engineering; Metallurgisk processteknik;

   Abstract : The aim of this thesis work is to increase the knowledge of phenomena taking place during the initial stage in a top blown converter. The work has been done in a few steps resulting in four different supplements. Water model experiments have been carried out using particle image velocimetry (PIV) technology. READ MORE

6. 4. A Study of the Behavior of Foaming Slag in Steelmaking

   Author : Johan Martinsson; Du Sichen; Bjoern Glaser; Stuart Millman; KTH; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Teknisk materialvetenskap; Materials Science and Engineering;

   Abstract : The thesis presents a fundamental study on some aspects regarding foaming slag. In today’s society, the requirements on environmental impact and energy consumption are increasing. READ MORE

7. 5. Study of Sulfide Capacity of Slag and Sulfur Removal from Hot Metal

   Author : Adolfo Firmino Timoteo Condo; Du Sichen; Robert Eriksson; KTH; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Metallurgical process science; Metallurgisk processvetenskap;

   Abstract : The present study aims at investigating the desulfurization process in hot metal and sulfide capacity of slags. The missing experimental data of sulfide capacities in Al2O3-CaOMgO-SiO2 system at 1713 K, 1743 K, 1773 K, 1823 K, 1873 K and in the Al2O3-CaO-SiO2 system at 1873 K were investigated under wellcontrolled oxygen potentials. READ MORE