Calcium granules in liquid steel easy float up. With definite temperature of liquid in ladle, as depth of feeding calcium in liquid is larger than a critical depth, the static pressure of liquid shall inhibit calcium vapourizing, so the yield of calcium shall increase obviously. Based on the fluid dynamics principle, the gas rotary feeding wire lance with gas orifice separating from wire orifice and using gas rotary to revolve liquid steel has been designed and the feeding wire water simulation test is carried out. Test Results show that the circuiting flow at longitudinal and lateral directio...
