Development of energy-efficient technical solutions for modernization of rotating furnaces of electrode production with partial replacement of natural gas with syngas

The gasification method with the highest value of the syngas calorific value and the prototype of equipment for calcining carbon-containing bulk material are substantiated. A mathematical model of the process of gasification of bulk carbon containing material in a drum-cooler of a rotary kiln was developed, based on a continuous-discrete formulation of the interaction of a mixture of reacting gases with a discrete solid phase, taking into account the turbulent flow regime and thermal radiation.

The development of energy-efficient technology of isostatic graphite production

Energy efficient technical solutions and regulations of pressing, baking and graphitizing of isostatic graphite artifacts were developed, which do not have any analogues in Ukraine and enable specific energy consumption decrease. Parameters of material base for isostatic graphite artifacts obtaining were determined and the requirements for “green” isostatic graphite samples, which are obtained on the pressing stage, were formulated.

The development of energy-efficient designs direct heating the Castner furnace for graphitization electrode products

Energy-saving constructions and regulations of the Castner furnaces operation were developed for graphitization of large-sized electrode workbenches, which have no other analogue in Ukraine and reach energy expenses decrease by 20–25 %. Thermal and electrical furnace state was experimentally investigated during graphitization of electrode workbenches with different expansion blocks. It was found out that gasification process of carbon material by water vapor occurs in operation area during graphitization process in the Castner furnace.