Energy Science and Technology

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CSCanada operates a group of scholarly journals covering the natural sciences, social sciences, political science, etc. The editorial board welcomes you to join us as a reviewer.

-Identified the principles of the technology including decay, combination and limiting conditions.

-Defined system properties of blast-furnace as a multifunctional system.

-Established that each of the main BF-function including metallurgy, energy and environmental can be performed off-line.

-Studying a pattern of transition to the technology without coke (TWC) On the basis of BF-evolution.

-The key problems of TWC is the ability to use ash coals and rebuilding BF in shaft-hearth Unit (SHU)

-Studying the new technology by physical and mathematical models.

-TWC can be organized by reconstruction of BF, the term of payback < 1 year. 

-Study of BF-processes when replacing part of the coke by using a multi-zone mathematical model.

-Showed the possibility of reducing the coke consumption up to 180-200 kg/t by blowing pulverized coals.

-The possibility of injection instead of 250 kg/t low-ash coal and 400 kg/t of high-ash in the form of gasification products.

-Development of a system of coal gasification by furnace-side units or tuyere-mounted gasifiers.

-Study of the influence on the processes of individual parameters and complex of factors. Propose rational modes.

-It was found that use of the offered modes will allow cutting coke expenses to 190-200 kg/t of pig-iron.

-Technology of pulverized coal injection may not limit the Arsenal of technologies used (coke-oven gas, products of coal-gasification, lump anthracite).

-The main factor responsible for the decrease in coke consumption by increasing the natural gas is decrease in the direct reduction of iron (r_d).

-When r_d < 20% , the differential equivalent of coke replacement falls from 0.9-1.0 to 0.2-0.4 kg/m³.

-The influence of coke-oven gas is analogous when the supply ratio of the coke-oven gas and natural gas is 1: 2.

-The main factor that determined the substitution of coke pulverized coal fuel is the heat of combustion of coal-dust.

-Predominant over consumption of coke in enrichment of blast oxygen is the reduction of heat nitrogen.

-Analysis of influence preliminary metallization burden on processes allowed finding new regularities.

-Influence of preliminary metallization burden on processes is different from known.

-With new regularities was revealed the weakening of influence on processes of injection of gas and distribution of materials on sections.

-Reasonability restricts the extent of pre-metallization of the charge size of 20%.

-Blast melting as a technical phenomenon, its evolution and the possibilities of reducing the coke consumption.

-Methods of analysis and the development of multi-zone model of blast-melting.

-Forecasts by multi-zone model the characteristics of processes in the volume of blast furnace.

-Results of calculations with various types of burden distribution on the furnace top.

-Influence of burden materials distribution on the processes and indexes of BF.