Determination of the theoretical temperature of combustion at the injection of the natural gas and pulverised coal into the blast furnace hearth
Journal Title: Metallurgical and Mining Industry - Year 2017, Vol 9, Issue 6
Abstract
The average design temperature of the gaseous fuel combustion products in the combustion zones of the blast furnace (the theoretical combustion temperature of the fuel) is an important technological parameter of blast furnace smelting. It largely determines the temperature-thermal level of the blastfurnace process, the gas-dynamic intensity in the lower zone of the furnace, and, the technical and economic performance of the blast furnace in general. The theoretical temperature of combustion of fuel in combustion zones is the main generalizing indicator of the blast furnace mode of blast furnace melting using which, the blast parameters are optimized. Metallurgical enterprises use different methods of calculating the theoretical combustion temperature. Often under present conditions, the most popular empirical technique gives overestimated values of this indicator, which psychologically keeps technologists from rationally raising the real theoretical temperature. In addition, it is problematic to take into account correctly the influence on the theoretical combustion temperature of the injection of additional fuels into the hearth of the blast furnace. A method for determining the theoretical combustion temperature of tuyeres when injecting natural gas and / or pulverized coal into the hearth is proposed and justified using operational information on parameters of blast, natural gas and pulverized coal fuel discharged from test and measurement devices, as well as control and management systems of the blast furnace.
Authors and Affiliations
D. A. Kassim, V. P. Lyaluk, A. K. Tarakanov, V. S. Listopadov, D. V. Pinchuk
Keywords
Related Articles
- EP ID EP322798
- DOI -
- Views 98
- Downloads 0
Investigation of the deformation resistance of alloy Al-6% Mg alloyed with scandium at hot plastic deformation temperatures
Materials used in transport engineering in addition to high strength characteristics should have a complex of such properties as low density and increased corrosion resistance, as well as the ability to preserve these pr...
Simulation on the system to improve labour conditions at railway enterprises by international standards introduction
The article explores the ways and means of refining and improving the conditions of labour protection through the example of the railway transport enterprises by the implementation of international standards in the field...
Principles of building of computer model of passenger cars dynamics for high-speed movement
The structural description of the developed model of dynamics of passenger cars of advanced design for carrying out complex researches by means of computer modeling and basic values are presented in the paper and control...
The influence of initial blank parameters on railway wheels manufacture with hot plastic deformation process
The current article aims at simulation of hot plastic deformation process with the objective to determine the influence of initial blank H / D ratio on the cumulative deformation distribution within the wheel blank and p...
Mathematical justification on the choice of explosive material to rupture strong rocks of complex structure
This work outlines the relevance, the purpose, the problem, the methodology and the results of research on explosive materials applied for rupture of strong rocks. The purpose of this paper is to justify mathematically t...