L. Blacha, A. Smalcerz Silesian University of Technology, Faculty of Materials Engineering and Matallurgy, Katowice, Poland K. Michalek Technical University of Ostrava, Faculty of Metallurgy and Materials Engineering, Ostrava, Czech Republic M. Warzecha University of Częstochowa, Faculty of Materials Processing Technology and Applied Physics, Częstochowa, Poland In the paper, results of a kinet...

Abstract Effective recycling of zinc-containing industrial wastes, most importantly electric arc furnace dust, is tremendous importance for the circular economy steel and zinc industry. Herein, we propose a comprehensive kinetic model combined carbothermic metallothermic reduction oxide in metal bath process. Pyro-metallurgical, large-scale lab experiments carbon-saturated iron melt as agent mo...

A previously reported numerical method using the multi-fluid VOF model to simulate an SKS furnace multiphase flow was further verified provide a good reference for macroscopic field simulation of industrial vessels with similar geometry. Using model, CFD full-scale conducted, targeting agitation performance different melt densities and viscosities, under constant operating conditions. According...

This article studies the transient heat conduction in a slab when passing through various sections of the furnace, and focuses on the thickness of the scale layer formed on the slab. The transient heat conduction behavior of a slab in various sections of the heating furnace is analyzed using the Laplace transformation method, including the pre-heating zone, the first heating zone, the second he...

An explicit equation leading to a method for improving furnace efficiency is presented. This equation is dimensionless and can be applied to furnaces of any size and fuel type for the purposes of comparison. The implications for current furnace design are discussed. Currently the technique most commonly used to reduce energy consumption in galvanizing furnaces is to increase burner turndown. Th...

In this paper the influence of the moisture content on the flow characteristics of blast furnace dust is investigated. The flowability of granular material is essential for the design and operation of dust separators, transport equipment and storage silos. Two blast furnace dust samples from different blast furnaces were investigated. The moisture content was adapted for measurement with the sh...

Alumina-rich iron ore is a widely existed polymetallic deposit in the nature, and it has a high comprehensive utilization value. Because the alumina and iron contents of alumina-rich iron ore vary from each other, there are many different measures and processes to recover iron and alumina from the various kinds of alumina-rich iron ore. In the blast furnace (BF) ironmaking process, the alumina ...

cutaneous lesions in fishes due to viral, bacterial, parasitic, mechanical and chemical agents are very common, leading to severe infection and high mortality. the aim of this research was to investigate the effect of long term bath of zinc sulfate (15 and 23 ppm), healing of cutaneous lesions caused by surgical incision in carps. in this study, 210 carps were disinfected by 3% salt solution fo...

This paper presents the autogenic self-healing potential of Portland cement (PC) blends made with conventional supplementary cementitious materials (SCMs), to improve water-tightness by reducing overall pore size. Mortar samples were prepared mixing PC, sand and water, partially replacing PC either silica fume (SF), pulverised fuel ash (PFA), or ground granulated blast-furnace slag (GGBS). Dama...