About the authors
| First name, Middle name, Last name, Scientific degree, Scientific rank, Current position. Full and brief name of the organization, The organization address. | Vladimir Z. Abdrakhimov, doctor of technical sciences, professor, Samara State University of Economics, Samara, Russian Federation Email: This e-mail address is being protected from spambots. You need JavaScript enabled to view it |
| Title of the article | Recycling of metallurgical iron-containing in the production of ceramic bricks based on hydrosluidic low-melting clay with an admixture of montmorillonite |
| Abstract. | The analysis for the functioning of brick factories and stocks of high-quality high-grade raw materials showed their depletion. Therefore it is necessary to investigate and study such waste products if it is possible to use them as leaners and sintering intensifiers, thanks to which it will be possible to use substandard clay raw materials. Enterprises have adopted such experience, which they also used as a tool for protecting environmental systems. The purpose of the work: a) creation and implementation of compositions for the process of obtaining ceramic wall bricks based on hydrosluidic low-melting clay with an admixture of montmorillonite, which does not give a positive result when used as an independent raw material without the use of a leaner and sintering intensifier; b) to investigate the effect of metallurgical iron-containing slag obtained from copper smelting on the technical characteristics of ceramic bricks. Results. It was revealed that the dried brick made of hydrosluidic low-melting clay with an admixture of montmorillonite, without the use of a leaner, after drying does not meet the requirements of State Codes (GOST) in terms of the number of cracks without destruction, the number of through cracks and numerous cuts as a result of the high sensitivity of the charge to drying. Metallurgical slag introduced into the ceramic mass based on Kyshtyrli clay even in an amount of 10% reduces the number of cracks, increases strength (compression and bending) and frost resistance. The optimal composition for the production of ceramic bricks is a composition containing 15% slag. Conclusions. Studies have revealed that cracking in the production of bricks based on the Kyshtyrlinsky clay deposit without the use of leaners is observed in the following proportions: in tunnel dryers -51% (of the total number of cracks) and after firing (in furnaces) – 49%, approximately in equal parts. Metallurgical slag reduces the number of cracks, increases technical performance. The optimal composition for the production of ceramic bricks is a composition containing 15% slag, the grade of brick with such a content corresponds to M125 and excludes various types of defects on products. A further increase in the content of metallurgical slag does not reduce the grade of the brick, but at the same time various types of defects appear, for example, a black core. |
| Keywords. | hydrosluidic clay, iron-containing metallurgical slag, ceramic brick, recycling, technical indicators |
| For citations: | Abdrakhimov V.Z. Recycling of metallurgical iron-containing in the production of ceramic bricks based on hydrosluidic low-melting clay with an admixture of montmorillonite // News KSUAE, 2024, № 1(67), p. 41-50, DOI: 10.48612/NewsKSUAE/67.5, EDN: HGLFIE |
