The paper presents a methodology that allows to estimate the energy efficiency of the furnace modernization by replacing the enwall, as well as to determine the feasibility of using a multi-layer structure depending on the operating temperature of the furnace and the heat transfer conditions at the surface. The methodology, which allows to calculate the temperature of the surface of the lining on cooling during the upload-download details.

The article shows the major environmental problems arising from the use of scrap in steelmaking. Presented conditions appearance in the electric furnace emissions of harmful substances and their control measures. Shown the advantages of a preliminary preparation and cleaning impurities of metal as one of the measures to reduce emissions from the furnaces into the atmosphere.

The paper presents a methodology that allows to estimate the energy efficiency of the furnace modernization by replacing the enwall, as well as to determine the feasibility of using a multi-layer structure depending on the operating temperature of the furnace and the heat transfer conditions at the surface. The methodology, which allows to calculate the temperature of the surface of the lining on cooling during the upload-download details.

In the article analysis of the existing methods of calculation of temperature of a steel liquidus is made on the basis of which the option providing results with the minimum error of experimental data is chosen. To define the metallurgical length of the ingot spilled in the conditions of the of continuous casting machine and time of full solidification of a metal new assessment technique is offered; existence of clusters in liquid melt and a liquidation of impurities in the course of crystallization is taken into consideration.

In the article analysis of the existing methods of calculation of temperature of a steel liquidus is made on the basis of which the option providing results with the minimum error of experimental data is chosen. To define the metallurgical length of the ingot spilled in the conditions of the of continuous casting machine and time of full solidification of a metal new assessment technique is offered; existence of clusters in liquid melt and a liquidation of impurities in the course of crystallization is taken into consideration

Data on complex experimental and theoretical investigations pertaining to efficiency of oxygen-enriched draft in the small-capacity heating boilers as exemplified by the plant HEIZA (HW-S-10/K) have been presented in the paper. The paper provides a calculation model of heating processes in heat generator burner (as exemplified by HEIZA plant). Simulation of heating processes in the operational zone has been executed in paper. The experimental data have proved model adequacy. The calculation scheme of the plant will be used in future for determination of power and ecological efficiency of draft enrichment with oxygen.

The paper contains a comparative efficiency analysis pertaining to application of existing technological methods for suppression of nitric oxide formation in heating boilers of heat generators. A special attention has been given to investigation of NO x emission reduction while burning hydrocarbon fuel with the help of oxygen-enriched air. The calculations have demonstrated that while enriching oxidizer with the help of oxygen up to 50 % (by volume) it is possible to reduce volume of NO x formation (while burning fuel unit) by 21 %.

The paper contains a comparative efficiency analysis pertaining to application of existing technological methods for suppression of nitric oxide formation in heating boilers of heat generators. A special attention has been given to investigation of NOx emission reduction while burning hydrocarbon fuel with the help of oxygen-enriched air. The calculations have demonstrated that while enriching oxidizer with the help of oxygen up to 50 % (by volume) it is possible to reduce volume of NOx formation (while burning fuel unit) by 21 %.

Assesses the efficiency of the use of excess oxygen produced by the oxygen-compressor station in order to reduce the flow of oxygen gas and specific consumption of fuel, for the conditions of JSC «BSW».

Assesses the efficiency of the use of excess oxygen produced by the oxygen-compressor station in order to reduce the flow of oxygen gas and specific consumption of fuel, for the conditions of JSc «BSW».

The main heat engineering parameters and constructive peculiarities of heating furnace KPPD-600 are examined.

The results of mathematical modeling of the heat exchange processes in the furnaces with mechanized bottom (of mills 850, 320, 150 furnaces) of Belorussian metallurgical works are given in the present articles.

The results of mathematical modeling of the heat exchange processes in the furnaces with mechanized bottom (of mills 850, 320, 150 furnaces) of Belorussian metallurgical works are given in the present articles.