Apparatus for tapping slag-free steel from a continuous melting furnace
    1.
    发明授权
    Apparatus for tapping slag-free steel from a continuous melting furnace 失效
    用于从连续熔炼炉中排出无渣钢的设备

    公开(公告)号:US4795139A

    公开(公告)日:1989-01-03

    申请号:US72388

    申请日:1987-07-13

    Inventor: John A. Vallomy

    Abstract: A method and apparatus for tapping a metal refining furnace which is tiltable about a horizontal axis, including an externally mounted chamber or "hot spout" at the side of the furnace communicating with the interior of the furnace, a nozzle situated in the bottom wall of the chamber, stopper rod or sliding gate means associated with the chamber for closing the nozzle opening, and heating means in the chamber for maintaining a high temperature within the chamber. An associated receiving vessel is capable of monitoring the amount of molten metal in the vessel and generating a signal to stop the pouring operation.

    Abstract translation: 一种用于敲击金属精炼炉的方法和装置,其可绕水平轴线倾斜,包括在与炉内连通的炉侧的外部安装的腔室或“热喷嘴”,位于 与腔室相关联的用于封闭喷嘴开口的腔室,塞杆或滑动门装置,以及腔室中的加热装置,用于保持腔室内的高温。 相关的接收容器能够监测容器中的熔融金属的量并产生停止浇注操作的信号。

    Apparatus for continuous steelmaking
    2.
    发明授权
    Apparatus for continuous steelmaking 失效
    连续炼钢设备

    公开(公告)号:US4543124A

    公开(公告)日:1985-09-24

    申请号:US636944

    申请日:1984-08-02

    Inventor: John A. Vallomy

    Abstract: Apparatus for the continuous making of steel in an electric steelmaking furnace, having a charge material preheater, continuous charging means, and means for removing refined steel without removing the furnace electrodes from operation, wherein charging and tapping are accomplished while maintaining full electric power, and allowing for good control over both product quality and product chemistry.

    Abstract translation: 用于在电炼钢炉中连续制造钢的装置,具有充电材料预热器,连续充电装置,以及用于除去精炼钢而不除去炉电极的操作的装置,其中在保持充分电力的同时完成充电和攻丝,以及 可以很好地控制产品质量和产品化学成分。

    Method and apparatus for recovering metal values from liquid slag an baghouse dust of an electric arc furnace

    公开(公告)号:US06438154B1

    公开(公告)日:2002-08-20

    申请号:US09785819

    申请日:2001-02-16

    Inventor: John A. Vallomy

    Abstract: An apparatus and method for processing liquid slag and baghouse dust from a steelmaking furnace such as an EAF to recover valuable metals from the slag and dust includes a treatment vessel having a movable lower shell portion for receiving liquid slag and an upper shell portion that couples with the movable lower shell portion during heat activation of the treatment vessel. The slag is combined with silicon dioxide, a reducing agent, baghouse dust, and an inert gas before being heated to between approximately 1400° C. and 3000° C. The heat treatment results in a molten reduced iron and manganese metallic material, a treated slag layer, and an off-gas containing lead, zinc, and carbon monoxide. The off-gas is combusted, cooled, and solidified, resulting in lead oxide and zinc oxide. The slag layer is tapped, cooled, and solidified. The metallic layer is tapped for recycle in the steel making process.

    Method and apparatus for controlling bath level and measurement of bath
characteristics
    4.
    发明授权
    Method and apparatus for controlling bath level and measurement of bath characteristics 失效
    用于控制浴液的方法和设备以及浴特性的测量

    公开(公告)号:US6004504A

    公开(公告)日:1999-12-21

    申请号:US41348

    申请日:1998-03-12

    Inventor: John A. Vallomy

    Abstract: A method and apparatus for improved control of continuous electric arc furnace steelmaking in which a charge velocity detector measures charge velocity of metallic charge introduced to the furnace. A charge mass detector measures a charge mass of metallic charge introduced to the furnace. A computer determines a feed rate based on the charge velocity and the charge mass. An automatic bath level probe detects a steel bath. The computer determines a steel bath level and optimal positions to insert a temperature probe and an oxygen lance, and further predicts new bath levels from one tapping time to the next tapping time. The temperature probe is inserted to an optimal measurement position based on the steel bath level and measures a steel bath temperature. The oxygen lance is positioned and maintained at an optimal oxygen injection position and injects oxygen into the bath.

    Abstract translation: 一种用于改进连续电弧炉炼钢控制的方法和装置,其中充电速度检测器测量引入炉中的金属电荷的充电速度。 电荷质量检测器测量引入炉中的金属电荷的电荷质量。 计算机基于充电速度和电荷质量确定进料速率。 自动浴液探头检测钢浴。 计算机确定钢水位和最佳位置以插入温度探头和氧气喷枪,并进一步预测新的洗澡水平从一个攻丝时间到下一个攻丝时间。 温度探头根据钢水位插入最佳测量位置,测量钢浴温度。 氧枪定位并保持在最佳氧气注入位置,并将氧气注入浴中。

    Continuous electric steelmaking with charge preheating, melting,
refining and casting
    6.
    发明授权
    Continuous electric steelmaking with charge preheating, melting, refining and casting 有权
    连续电炼钢带充电预热,熔炼,精炼和铸造

    公开(公告)号:US6155333A

    公开(公告)日:2000-12-05

    申请号:US344797

    申请日:1999-06-25

    Inventor: John A. Vallomy

    Abstract: An improved method and apparatus for preheating, melting, refining and casting of steel. The apparatus has a variable length secondary belt conveyor positioned in a charging area for introducing minute charge materials or slag formers, a skirted self-positioning charging cart engaging the secondary conveyor, a charge conveyor for receiving charge material having a means for maintaining a homogeneous scrap bed height that is coupled to the self-positioning cart, a dynamic gas seal coupled to both the charge conveyor and a preheater, the preheater communicating with the charge conveyor for preheating the charge materials on the charge conveyor, a connecting car for feeding charge materials into a furnace bath that is removably coupled to the preheater and charge conveyor, an electric arc furnace for melting and refining metallic charge therein, at least one electrode sealing ring that is coupled to the electrodes of the furnace, a directly fed intermediate metallurgical vessel that receives the molten metal discharged from the furnace, and a continuous casting device that receives refined-alloyed steel from the intermediate metallurgical vessel. No ladle is used so that the furnace pours directly into the intermediate metallurgical vessel thereby eliminating the requirements for both a ladle and ladle handling equipment.

    Abstract translation: 一种用于预热,熔化,精炼和铸造钢的改进方法和装置。 该设备具有位于充电区域中的可变长度的二次带式输送机,用于引入微小的充电材料或成渣器,与二次输送机接合的裙边自定位充电车,用于接收充电材料的充电输送机,具有用于保持均质废料的装置 耦合到自定位推车的床高度,耦合到充电输送机和预热器的动态气体密封件,预热器与充电输送机连通,用于预充电输送机上的充电材料,用于馈送电荷材料的连接车 进入可拆卸地联接到预热器和充电输送机的炉浴,用于熔化和精炼金属电荷的电弧炉,连接到炉的电极的至少一个电极密封环,直接进料的中间冶金容器,其中 接收从炉排出的熔融金属,以及连续铸造装置 接受来自中间冶金容器的精炼合金钢。 不使用钢包,使炉子直接倒入中间冶金容器中,从而消除了钢包和钢包处理设备的要求。

    Continuous scrap preheating
    8.
    发明授权
    Continuous scrap preheating 失效
    连续废料预热

    公开(公告)号:US5400358A

    公开(公告)日:1995-03-21

    申请号:US959733

    申请日:1992-10-13

    Inventor: John A. Vallomy

    Abstract: A method and apparatus for reducing the production or emission of noxious gases while continuously preheating a mixture of iron-bearing scrap charge materials for an electric steelmaking furnace operation with off-gas from, the furnace, including provision for controlled combustion within the preheating chamber. Removed gases are then treated by thermal incineration of combustible residual matter before release into the atmosphere to insure that no noxious gases are emitted.

    Abstract translation: 一种用于减少有毒气体的产生或排放的方法和装置,同时连续预热来自炉子的废气的用于电炼钢炉操作的含铁废料装料的混合物,包括用于预热室内的受控燃烧的装置。 然后将被除去的气体通过热可燃残余物质的焚烧处理,然后释放到大气中,以确保没有有害气体被排出。

    Method and apparatus for continuously charging a steelmaking furnace
    9.
    发明授权
    Method and apparatus for continuously charging a steelmaking furnace 失效
    连续对炼钢炉进行充气的方法和装置

    公开(公告)号:US4681537A

    公开(公告)日:1987-07-21

    申请号:US868380

    申请日:1986-05-29

    Inventor: John A. Vallomy

    Abstract: An apparatus and method for charging a melting furnace having a charging opening in its sidewall, in which a closed housing contains a pivotally mounted receiving pan having a discharge chute on one side thereof, the discharge chute adapted to extend into the charging opening in the furnace sidewall; and means for moving the charging apparatus into the charging opening of the furnace and removing the apparatus to a position remote therefrom. A method for feeding the furnace over a predefined area, and continuously feeding the furnace during all phases of operation, including slagging and tapping, is also disclosed.

    Abstract translation: 一种用于对其侧壁中具有充电开口的熔炉进行充电的装置和方法,其中封闭的壳体包括在其一侧具有排放槽的枢转安装的接收盘,所述排放槽适于延伸到炉中的装料口 侧壁 以及用于将充电装置移动到炉的充电开口中并将设备移除到远离其的位置的装置。 还公开了一种在预定区域内供给炉子并且在所有操作阶段(包括除渣和攻丝)期间连续供给炉子的方法。

    Compact continuous charging apparatus
    10.
    发明授权
    Compact continuous charging apparatus 有权
    紧凑型连续充电装置

    公开(公告)号:US06450804B2

    公开(公告)日:2002-09-17

    申请号:US09892343

    申请日:2001-06-27

    Inventor: John A. Vallomy

    Abstract: An improved method and apparatus for charging, preheating and refining steel. The charging apparatus has a skirted charging section for introducing charge materials, a dynamic gas seal adjacent the charging section and a preheater, the preheater for preheating the charged materials, a connector adjacent the preheater and removably insertable into an electric arc furnace for feeding charged materials into a furnace bath for melting and refining metallic charge therein, and a vibrating conveyor which extends throughout the charging apparatus. The charging apparatus is positioned on rails to be movable by a hydraulic cylinder between a charging position wherein the connector is fully inserted into the furnace, a retracted position where the connector is partially inserted into the furnace and a disconnected position where the connector is fully removed from the furnace.

    Abstract translation: 一种用于对钢进行充电,预热和精炼的改进方法和装置。 充电装置具有用于引入充电材料的边缘充电部分,与充电部分相邻的动态气体密封件和预热器,用于预热充电材料的预热器,邻近预热器的连接器,并可拆卸地插入到电弧炉中,用于给带电材料 进入用于熔化和精炼金属电荷的炉浴,以及遍及充电装置延伸的振动输送机。 充电装置定位在轨道上,可通过液压缸在充电位置(其中连接器完全插入炉中),连接器部分插入炉中的收回位置和连接器被完全去除的断开位置之间移动 从炉子。

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