Method for tapping a steel making furnace
    1.
    发明授权
    Method for tapping a steel making furnace 有权
    钢炼炉的出钢方法

    公开(公告)号:US07468090B2

    公开(公告)日:2008-12-23

    申请号:US11287977

    申请日:2005-11-28

    IPC分类号: C21B13/12

    摘要: A method for tapping of steel from a steelmaking furnace to a receiving vessel comprising the steps of providing a steelmaking furnace comprising a tapping hole, and means for angular positioning of the furnace to vary the depth of molten steel and slag contained in the furnace above the tapping hole; determining a guidance profile for the tapping of the furnace, the guidance profile including the parameters of minimum tapping angle, maximum tapping angle, and time of rotation from the minimum tapping angle to the maximum tapping angle; performing an initial angular rotation of the furnace from an initial position to the minimum tapping angle; beginning the transfer of molten steel from the furnace through the tapping hole to a receiving vessel; rotating the furnace to the maximum tapping angle in accordance with the guidance profile; and ceasing the flow of molten steel through the tapping hole.

    摘要翻译: 一种用于从炼钢炉向接收容器进行钢的开采的方法,包括以下步骤:提供包括出钢孔的炼钢炉,以及用于角度定位炉子的装置,以改变炉中所含的钢水和炉渣的深度, 攻丝孔 确定用于炉的攻丝的引导轮廓,所述引导轮廓包括从最小攻丝角到最大攻丝角的最小攻丝角度,最大攻丝角度和旋转时间的参数; 将炉的初始角旋转从初始位置执行到最小攻丝角; 开始将熔融钢从炉中通过出钢口传送到接收容器; 根据引导轮廓将炉子旋转到最大出钢角度; 并且通过出钢孔停止钢水的流动。

    Slag composition
    2.
    发明授权
    Slag composition 有权
    炉渣组成

    公开(公告)号:US06793708B1

    公开(公告)日:2004-09-21

    申请号:US10271083

    申请日:2002-10-15

    IPC分类号: C21C7076

    摘要: A slag composition containing from about 85 to about 99 weight percent of steelmaking slag and from about 1 to about 15 weight percent of a foaming additive. The steelmaking slag is at a temperature of from about 2500 to about 3100 degrees Fahrenheit. The foaming additive contains from about 20 to about 80 weight percent of a source of elemental carbon, from about 5 to about 80 weight percent of calcium carbide, and from about 25 to about 75 weight percent of anoxide compound. The weight ratio of the source of elemental carbon to the calcium carbide is at least 2.

    摘要翻译: 含有约85至约99重量%的炼钢渣和约1至约15重量%的发泡添加剂的炉渣组合物。 炼钢渣的温度为约2500至约3100华氏度。 发泡添加剂含有约20至约80重量%的元素碳源,约5至约80重量%的碳化钙和约25至约75重量%的氧化物化合物。 元素碳与碳化钙的重量比至少为2。

    Process for controlling the stirring energy delivered by a gas flowing through a liquid
    3.
    发明授权
    Process for controlling the stirring energy delivered by a gas flowing through a liquid 有权
    用于控制由流过液体的气体输送的搅拌能量的方法

    公开(公告)号:US06264716B1

    公开(公告)日:2001-07-24

    申请号:US09531064

    申请日:2000-03-18

    IPC分类号: C21B1110

    摘要: A process for stirring molten steel in a container. In this process, argon gas is introduced into the container at a flow rate of from about 0.005 to about 0.2 cubic feet of argon per ton of molten steel per minute, the extent to which said container is caused to vibrate is measured, analog signals are produced corresponding to the rate of flow of argon gas into said container, the analog signals are sampled at a rate of at least 800 times per second, the analog signals are converted to digital signals, the digital signals are transformed by subjecting them to fast Fourier transformation, and the transformed digital signals are evaluated.

    摘要翻译: 一种用于在容器中搅拌钢水的方法。 在此过程中,氩气以每分钟钢铁约0.005至约0.2立方英尺氩气的流量被引入容器中,测量所述容器振动的程度,模拟信号为 对应于氩气流入所述容器的速率产生的模拟信号以每秒至少800次的速率进行采样,模拟信号被转换为数字信号,数字信号通过对其进行快速傅立叶变换 转换,并且转换的数字信号被评估。