Physical and Chemical Geotechnologies

Purpose

Using the conical backfilling system and principles of thermodynamic conversion was providing technical and technological insuring the process of iron smelling for providing minimal coke losses.

Methodology

The studies were carried on using special equipment for providing the trajectory and fulfilling of coke and iron ore according the quantity proportions and qualities of inputting material and providing the final characteristics of the product. All this activity allows to manage the melting process.

Findings

It is proposed that the coal mining and power energy generation development just now have a huge problem.

The paper represents the analysis, which has helped to determine the spreads and treands in in cast iron smelting in blast furnaces. The thermodinacic processes, which are based on Nijman criterion, allows to describe the common processes in blast furnaces with high level of accordance. Provided practical researches shown that the furnaces during iron smelting are under complicate processes, which are really hard to estimate only theoretically. Thermodynamic processes are defined as very difficult in such an environment to physically lay sensors that could take into account the geometric shape of the charge. So, it is proposed to use the developed special devices for determining the geometrical parameters of iron smelting material in the furnace. Such equipment has the title a gamma locator. Its allows to fix the fluidized state of the charge on the blast furnace grate. It makes possible to keep almost virtually horizontal surface on the grate after the next supply of the appropriate portion of material. On this basis, it is proposed to adapt different ways of feeding the charge into the blast furnace to more efficiently ensure the melting process. The economic indicators of the proposed technological solutions are given.

This work contains the research, which was conducted within the projects: TrainESEE: Training trainers in East and Souteastern Europe and DIM ESEE: Dubrovnik International ESEE Mining School (within the framework of EIT Raw Materials).

Article is dedicated in memoriam of Anatoliy Golovchenko

Keywords: thermodynamic modelling, iron ore, smelting, blast furnace, conical backfill, coke, economical issues

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