Development of effective refractories for metallurgy and the glass industry

Abstract

Concrete examples of new technological and engineering designs of effective refractory materials for use in metallurgy and the glass industry are presented. It is shown that the OAL Borovich Refractory Combine has expanded the degree of diversification of its production activity not only through the development of new types of products, but also through the startup and operation of services that are new for the enterprise, such as engineering and bench pre-assembly of the bottom and other elements of glass making furnaces.For the OAO Borovich Refractory Combine, 2009 was one of the most difficult in its recent history. A critical situation that affected the basic consumers of refractory materials, in the metallurgical, cement, and glass making branches of industry lead to a reduction in the volumes of demand for refractories, and a decrease in the world price for petroleum led objectively to a decrease in the consumption of propants. The advantages of the two strategic directions for the development of the enterprise that had previously been decided on diversification and quality became fully apparent [1].Because of the high degree of quality of the output produced by the plant, the market and sphere of application of the traditionally fabricated output has expanded, there has been no drop in the volume of production, and highly skilled personnel have been retained. The principal advances achieved in the operation of the OAO Borovich Refractory Combine as regards increasing the quality of the output have been marked by the awarding of a number of certificates [2].The OAO Borovich Refractory Combine is a city-forming enterprise, hence to maintain a stable socioeconomic environment the management of the combine has never resorted to a sharp reduction in production, and besides expanding the product mix and the adoption of new types of products, the management has focused on increasing production efficiency, achieving economic gains, and avoiding bankruptcy. As the enterprise has developed, the accumulation of diversification capital at the OAO Borovich Refractory Combine has changed in form. The evolution of the diversification of the product manufactured at the OAO Borovich Refractory Combine, is presented in Table 1.The Borovich Combine produces refractories for all the different divisions of the ferrous metallurgy industry, including aluminosilicate articles for the brickwork of coke ovens and blast furnaces, Cowper hot-blast stoves, hot-metal transfer and casting ladles, mixer cars (including those for mixer cars used for articles to which silicon carbide has been added), regenerators of open-hearth furnaces, the bridges of electric-arc, steel melting furnaces, corundum-graphite articles for use in continuous casting of steel, and articles for rolling. Moreover, the products fabricated by the OAO Borovich Refractory Combine are purchased by enterprises in the ferrous metallurgy, machine-building, construction materials and chemical industries as well as by power plants and other industries. The production of pe...

Study of the Influence of Refractories Structure on the Thermomechanical Properties of Tunnel Kiln Equipment Lining

“…The advantages of the monolithic technology lie in the simplicity of manufacture, the absence of specially made molds, long service life and the simplicity of repairs which only require a fresh layer of concrete to be applied to the damaged section [19,20]. The disadvantage of this technology is the need to carry out the processes of drying and firing in a strictly established mode in order to avoid possible cracking of the coating.…”