DOI: 10.52150/2522-9117-2024-38-753-759
Mazur Viacheslav Valeriiovych, Ph. D. Student, Iron and Steel Institute of Z. I. Nekrasov National Academy of Sciences of Ukraine, Academican Starodubova Square, 1, Dnipro, 49107, Ukraine. ORCID: 0009-0006-5952-2868. Email: mazur0709@gmail.com
DIRECTIONS OF DEVELOPMENT OF CHARGE FORMATION TECHNOLOGY FOR SMELTING REFRACTORY MULTISILICA MATERIALS
Abstract. It is shown that the use of energy-saving technologies in metallurgy, energy, chemical industry and other industries is an urgent task for Ukraine at the current stage of restoring its scientific and technical potential. At present, machine-building and chemical enterprises, power plants, energy facilities, etc. are carrying out routine and major repairs, modernisation and reconstruction of equipment, including to save heat and energy resources. A promising area for the development of heat and energy conservation is the introduction of innovative solutions for the industrial use of high-temperature insulation made of multisilica fibres that can withstand temperatures up to 1600 °C. It has been established that the possibility of using such refractories in metallurgical units operating at high temperatures is ensured, first of all, by the composition of the charge for smelting refractory multisilica material. Technical characteristics of raw materials intended for the manufacture of multisilica heat-insulating fibre blocks and other refractory products are given. On the example of the planned modernisation of the Sinelnykivsky “SINTIZ” plant, the article considers effective technical and technological solutions for improving production, namely the technology of smelting refractory multisilica material. The reasons for the loss of melt of multisilica material, the occurrence of defects in the formed products and the directions of their processing in own production are considered. The use of in-house produced waste materials (petrified melt spills of SiO2 and AL2O3, waste, rejects of refractory plates MKRG and SPGT, etc.) with a mass fraction of up to 30 % in the charge for the production of this material is substantiated. A technology and a set of equipment have been developed to prepare the return for use as part of the charge.
Key words: metallurgy, refractories, multisilica materials, production, technology, development.
DOI: https://doi.org/10.52150/2522-9117-2024-38-753-759
For citation: Mazur V. V. (2024). Directions of development of charge formation technology for smelting refractory multisilica materials. Fundamental and applied problems of ferrous metallurgy, 38, 753-759. https://doi.org/10.52150/2522-9117-2024-38-753-759
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