Samoilenko T. Improving the technology of heating and air-blast design in order to increase the temperature of the blast and reduce the expenditure of specific coke.

The thesis is devoted to the study of heat and mass transfer processes in high-temperature hot blast stoves. Item-developed mathematical model for calculating the heat of blast stoves, which continues to develop the theory of heat regeneration. In contrast to the known solutions of the proposed model takes into account the change in thermal properties of the heated blast at a flow rate of a variable, consideration of the effect of heat loss to the environment on every element of packing height, the height variables tiers nozzle, and the presence of transition zones in the nozzle located between Zones II and ІІІ kind of boundary conditions. Using the proposed model developed piecemeal calculation method for the determination of rational longer period of stoves with the magnitude of heat loss during the pause and the temperature of flue gases at the end of the heating period. The effect of the type of nozzles on the performance of stoves. It is shown, that from an economic point of view and Thermal Engineering, the greatest advantage is modular nozzle with a diameter of 30 mm cells. Using the described model calculations allowed the development of technological tasks and recommendations for Ukrgipromez that were used in the construction of the block stoves ВF2 PJSC "Azovstal" and BF8 PJSC "Arcelor Mittal Krivoy Rog". We propose a method for improving integrated combustion chambers, which are currently the most prevalent in countries of the CIS.