| 摘要 |
FIELD: cooling tuyeres used for introducing agents into melt. SUBSTANCE: gas and liquid are fed as cooling medium to cooling loop closed at end 2 of tuyere located on side of melt. Gas and liquid mixture or its components are fed under pressure to zone of said end 2 of tuyere for expansion in this zone which causes abrupt drop of pressure of mixture or its components. Tuyere is provided with mixing chamber connected with cooling loop. Mixing chamber for preparation of gas and liquid mixture has gas and liquid supply branch pipes; it is connected with at least one two-component nozzle 11 by means of pressure pipe 10; nozzle 11 is located in zone of tuyere end used for building-up pressure in this zone. EFFECT: enhanced reliability and efficiency of cooling tuyeres. 10 cl, 4 dwg |
