Gontar T. The development of a unified technology of hot repair thermal units by self-propagating high-temperature synthesis

The object of the study is the process of obtaining protective coatings for a unified technology for hot repair of thermal aggregates by the SHS method using granulated exothermic SHS mixtures. The aim of the research is to improve the quality of the coating of high-temperature thermal aggregates due to the developed unified technology of hot repair by the method of self-spilling of the high-temperature synthesis using unified granulated exothermic SHS mixtures. Scientific novelty: a mathematical model of the process of heating and transferring the granule of an exothermic mixture in a stream of an oxidizer to the surface of a lining has been developed to obtain protective coatings for the repair of high-temperature thermal aggregates, which are solved by the matrix sweep method; First developed mathematical models of the process of heating the granule on the surface of the lining and its sintering to obtain protective coatings when repairing high-temperature thermal aggregates, which are solved by the matrix sweep method and allow the composition of the unified mixture to be corrected; Theoretically proved and experimentally confirmed the possibility of creating a non-waste technology for the production of a unified exothermic mixture for hot repairs of liners of thermal aggregates based on optimizing the particle size distribution using a simplex-lattice method of experiment planning; Theoretically substantiated and experimentally confirmed the effect of carbon dioxide oxidizer on technological parameters and safety of obtaining protective coatings by the method of self-propulsive high-temperature synthesis (SHS)