Technology of combustion of carbon-containing products in the bubbling layer for metallurgy and energy

V. Garber V. Golovan
Received 04.01.2022, Revised 06.03.2022, Accepted 26.04.2022
Abstract

Purpose. The purpose of these studies is to assess the feasibility of application and implementation in ferrous metallurgy and energy technology of renewable combustion of coal in the bubbling layer of slag based on technical solutions. Research methods. Investigation of granulomeres composition of granulated slag, heat fluxes from slag to tubular surfaces of the evaporative cooling system. Scientific novelty. The scientific novelty of the research results is to determine the features of the bubbling furnace chamber in oxidative heat transfer with gas temperatures of 1400 ° C at the boiler inlet, increasing the intensity and high voltages of the furnace chamber when burning coal in the bubbling layer. Fuel on coal fuel, without reducing power and does not lead to the problem of solidification of slag. Practical meaningfulness. The practical significance of the obtained results of the technology of regenerative combustion of coal in the bubbled layer of slag can be used for the processing of by-products and metallurgical waste, extraction of nonferrous metals from blast furnace saws. Results. The different geometry of the furnace chamber while maintaining a distance of 2.5 m between the parallel longitudinal walls is considered. It is determined that the heat introduced by hot slag is 15%, and heat fluxes from slag to the pipe It was found that the production of granular slag in the size of 0.2-2 mm of slag in power boilers contains the main binder components of clinker - alite, and belite, which can be used to produce slag cement using drying, grinding slag, and mixing grinding products with finished cement. In a ratio of about 50:50. The possibility of excluding annealing during the combustion of coal of any quality in the layer of bubbling slag is determined. When gasification of coal with high sulfur content. In the slag melt, it is possible to exclude reagent purification of gases from sulfur compounds, being limited only to gas purification devices. Sulfur emissions for this technology are 3-4 times less than traditional

Keywords:
slag; barbed layer; combustion chamber; slag; cleaning

Retrieved from Vol. 56, No. 1, 2022

Pages 118–124

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Garber, V., & Golovan, V. (2022). Technology of combustion of carbon-containing products in the bubbling layer for metallurgy and energy. Mining Journal of Kryvyi Rih National University, 56(1), 118-124. https://doi.org/10.31721/2306-5435-2022-1-110-118-125
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