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本专利介绍的是用于中间包的钢水涡流抑制装置。该中间包由铜包通过浇注管注入钢流的浇注段和上浮段组成。从上浮段流出的无夹杂钢水通过长水口流入连铸结晶器。涡流抑制装置是一个由耐火材料制成的闭合的盒子,盒子上有一顶盖,顶盖上有一个接到浇注管底端的开孔,在盒子的各侧墙上开了许多方孔,使进入盒内的钢水以降低了能量的亚流形式流出盒外。闭合盒子的侧墙及其开孔的设计十分合理,从而使各条亚流都从各自的开孔流出并撞击到中间包的壁上,而且其流动方向基本上是垂直于中间包壁的。这种中间包钢水涡流的抑制装置的重要功能是可以有效地消耗钢流进入中间包的动能和缩短注流在中间包钢水内的穿透深度,因而可防止在浇注段内形成的渣被进入结晶器内的钢流带走。
This patent describes the molten steel eddy current suppression device for tundish. The tundish is composed of a pouring section and a floating section for injecting copper into the steel flow through a casting pipe. Unleached molten steel flowing out of the floating section flows into the continuous casting mold through the shroud. The eddy current suppression device is a closed box made of refractory material with a lid on which there is an opening connected to the bottom of the pouring tube and a plurality of square holes in the side walls of the box for entry The molten steel inside the box flows out of the box with a reduced flow of energy. The side walls of the closed box and their openings are designed so that each sub-stream flows from its respective opening into the wall of the tundish and its flow direction is substantially perpendicular to the tundish wall. The important function of this tundish steel vortex suppression device is to effectively consume the kinetic energy of the steel stream entering the tundish and shorten the penetration depth of the fill stream in the tundish, thus preventing the formation of slag in the casting section Was taken into the mold within the steel flow away.