Дослідження перебігу допалювання в порожнині робочого простору кисневого конвертера за рахунок оцінки фізичних параметрів димових газів та полум’я

Abstract

The work is devoted to the development and evaluation of the effectiveness of an available method of monitoring the state of the converter bath based on the physical parameters of the flame formed during the afterburning of the source gases. In the process of purging in the oxygen converter, conditions are created for the oxidation reaction of CO to CO2 in the cavity of the unit. Control of the specified factor can allow corrective actions to be taken to ensure a high level of technological and environmental indicators and be an indicator of the completeness of the flow of chemical transformations in the cavity of the oxygen converter. according to the luminosity of the gas torch in different spectrum; by the electrical conductivity of the gas torch. The conditions of different conditions of the high-temperature environment are taken into account: dustiness; fractions of dust emitted from the converter and their chemical composition, completeness of combustion when different fractions of the oxidizer are supplied. Simulation of the state of the environment in the upper part of the oxygen converter was performed. It was established that the most influential negative factor in the assessment of afterburning is dust, which affects all physical parameters of the flame and at high temperatures of the process itself becomes an object of radiation of both heat and light. According to the results of the research, it was concluded that it is most appropriate to measure the electrical conductivity of the flame between the torch and the blowing nozzle in order to have more complete information about the afterburning processes. When evaluating the operation of the blowing device, it was established that the dependence of the electrical conductivity of the flame on the CO content can serve as a characteristic of afterburning indicators and has a typical quadratic character.