Use of torch guniting for the repair of open-hearth furnace linings

Conclusions The method and equipment for torch guniting of converters require changes for use in open hearths.It is necessary to develop guniting nozzle designs providing earlier ignition of the fuel and combustion of it in a straight-flow flame.Translated from Ogneupory, No. 3, pp. 44–46, March, 1987.For the start of the discussion see No. 11, 1986 and the continuation No. 12, 1986 and Nos. 1 and 2, 1987.     

Masses based on Arkalyk clay for guniting steel-teeming ladles

Conclusions The authors investigate the properties of gunite masses based on Arkalyk clays with regard to service conditions in steel-teeming ladles used in open-hearth manufacture of steel. The optimal composition of the mass is as follows: 90% chamotte, 10% clay, and 10% binder (above 100%). Industrial tests have been performed on a mass for guniting 230-ton steel-teeming ladles of the MMC. The durability of a gunite layer 30–35 mm thick is about 6 pourings. The results confirm that Arkalyk clay is a promising material for making gunite masses.Translated from Ogneupory, No. 6, pp. 30–35, June, 1981.     

Refractory Clays of the Southern Berlinskoe Deposit Studied for Technological Application

Clays sampled from three core sites of the southern area of the Berlinskoe deposit (Chelyabinsk District, Russia) are analyzed for potential technological application. The clays containing 30.9 – 35.73% Al₂O₃ have a refractoriness of 1670 – 1690°C. The clays can be used as a binder for fabricating chamotte refractories (sample 1) and as a material component for building structures (samples 2 and 3).     

Technology for the Production of Refractory Castables for Thermal-Power Units

Results of studies carried out on precursor materials, modifying agents, granulometric composition, and fabrication technology of refractory castables for the lining of steelmaking units are reported.