Submersed nozzle capable of eliminating flocculation flow and application method

• Main Authors: LIU QINGHAI, MEI XUEHUI, LI DEJUN, LYU CHUNFENG, YU FUZHI, LIAO XIANGWEI, SHANG DELI, ZHANG NING, CAO DONG, XU MENGCHUN
• Format: Patent
• Language: Chinese; English
• Published: 08.03.2017
• Subjects: CASTING; CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES; PERFORMING OPERATIONS; POWDER METALLURGY; TRANSPORTING

The invention discloses a submersed nozzle capable of eliminating flocculation flow. The submersed nozzle comprises a segment h1 located at the top end, a heating segment h2, a slag line segment h4, a segment h5, a segment h6 and molten steel drainage holes, wherein the segment h1 is connected with a tundish lower nozzle body; the segment h2 and the segment h4 are connected with the segment h1; the segment h5 and the segment h6 are located at the bottom; and the molten steel drainage holes are formed between the segment h5 and the segment h6. An induction heating coil is arranged at the periphery of the heating segment h2, and a thermally-insulated fire-resistant cotton heat-preservation layer is arranged in a gap between the inner side of the induction heating coil and the outer side of the nozzle body. An induction heating coil supporting seat, namely a segment h3, is arranged at the bottom of the induction heating coil. Zirconium-carbon spraying is conducted on the slag line segment h4. A base of the segme