Development of a new design and model study of functioning of catapult for ladle sliding gate
| Autor: | B. I. Starodubtsev, E. S. Tsykhmistro, S. P. Eron’ko, E. A. Ponamareva |
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| Rok vydání: | 2021 |
| Předmět: | |
| Zdroj: | Ferrous Metallurgy. Bulletin of Scientific , Technical and Economic Information. 77:540-546 |
| ISSN: | 2619-0753 0135-5910 |
| DOI: | 10.32339/0135-5910-2021-5-540-546 |
| Popis: | Sometimes commencement of steel casting at CCM can’t be ensured in a regular mode because of formation of a crust above the nuzzle inlet. The crust can withstand the 3–5 m metal column weight. Design features of facilities, developed by foreign firms for the commencement of technological metal pouring from a ladle without application of oxygen considered, their drawbacks noted. Results of theoretical and experimental studies of strength indices of the solidified layer presented. The layer minimal thickness was also defined, which requires external action on it to ensure free pouring of liquid metal from steel ladles of various volumes. Obtained calculation and experiment data were used to justify design parameters of new catapult power elements. It was shown that the proposed catapults enable considerably decrease manufacturing costs comparing with the known foreign analogs. Besides, operation costs can be also decreased due to multiple application of most of components, thanks to their location outside the outlet channel of ladle sliding gate. For practical utilization two variants of the catapult power block design were recommended, which account particular conditions of sliding gate operation. |
| Databáze: | OpenAIRE |
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