Method and apparatus for improved use of primary energy sources in integrated steel plants
    1.
    发明授权
    Method and apparatus for improved use of primary energy sources in integrated steel plants 有权
    一体化钢铁厂改善一次能源利用的方法和装置

    公开(公告)号:US06986800B2

    公开(公告)日:2006-01-17

    申请号:US10846508

    申请日:2004-05-17

    IPC分类号: C21B5/06

    摘要: A method and an integrated steel plant wherein, instead of using coke oven gases, converter gases and blast furnace top gases available as fuel for power generation or other heating purposes, these gases are more efficiently utilized as chemical agents for direct reduction of iron ores producing DRI.DRI is charged to blast furnaces increasing production of crude steel without increasing the capacities of the coke oven plant and blast furnaces and without changes in the quality of the crude steel, or, if production rate is maintained, the fossil fuels specific consumption is significantly reduced.Utilisation of primary fossil energy according to the invention also reduces the specific CO2 emissions per ton of crude steel. The specific CO2 emission in conventional integrated mills is about 1.6 tons of CO2 per ton of crude steel.

    摘要翻译: 一种方法和综合钢铁厂,其中,代替使用焦炉煤气,转炉气体和高炉顶部气体作为用于发电或其他加热目的的燃料,这些气体被更有效地用作直接还原铁矿石生产的化学试剂 DRI。 在不增加焦炉厂和高炉的能力,粗钢质量不变的情况下,DRI将用于提高粗钢产量的高炉,或者如果维持生产率,则化石燃料的特定消耗量显着降低 。 根据本发明的初级化石能源的利用也降低了每吨粗钢的特定CO 2排放量。 在常规的综合磨机中,特定CO 2排放量为每吨粗钢约1.6吨CO 2。

    Method and apparatus for producing steel rods with a desired tensile
strength and model for simulating same
    2.
    发明授权
    Method and apparatus for producing steel rods with a desired tensile strength and model for simulating same 失效
    用于生产具有所需拉伸强度的钢棒的方法和装置以及用于模拟它的模型

    公开(公告)号:US5462613A

    公开(公告)日:1995-10-31

    申请号:US254969

    申请日:1994-06-07

    IPC分类号: C21C5/28 C21D9/573

    CPC分类号: C21C5/285 C21D9/5732

    摘要: A method and apparatus are provided for producing rods having a desired tensile strength from a rod manufacturing process set to an optimal operating condition. Initially, the rod manufacturing process is set in an optimal condition to produce rods at a maximum rate, while optimizing the mechanical properties therein. Raw materials are melted and a "heat of steel" representing one lot is poured into a ladle which is sampled to determine its chemical composition. The percentage content of each element is utilized within an empirical model modeling the rod manufacturing process to predict the tensile strength of rods. The empirical model is again utilized to determine the amount by which a control element must be varied to adjust the predicted tensile strength to the desired tensile strength. The control element represents an element, such as, carbon which significantly impacts the tensile strength of the rod. The predicted level of the control element necessary to achieve the target tensile strength is referred to as the "floating aim level" thereof. If the floating aim level exceeds a maximum accepted level for the control element the empirical model is again used to determine the necessary level of a second control element. Next, the heat of steel is trimmed to provide a lot having the target tensile strength.

    摘要翻译: 提供了一种方法和装置,用于从棒制造过程设置到最佳操作条件来生产具有期望拉伸强度的棒。 最初,杆制造过程被设定在最佳条件下,以最大速率生产杆,同时优化其中的机械性能。 将原材料熔化,将代表一批的“钢热”倒入钢包中,该钢包被取样以确定其化学成分。 在一个经验模型中利用每个元素的百分比来建模棒制造过程来预测棒的拉伸强度。 经验模型再次用于确定控制元件必须变化的量,以将预测的拉伸强度调整到所需拉伸强度。 控制元件表示一种元素,例如显着影响杆的拉伸强度的碳。 实现目标拉伸强度所需的控制元件的预测值被称为“浮动目标水平”。 如果浮动目标水平超过控制元件的最大可接受水平,则经验模型再次用于确定第二控制元件的必要水平。 接下来,对钢的热量进行修整以提供具有目标拉伸强度的很多。

    Process and installation for the separation of air
    3.
    发明授权
    Process and installation for the separation of air 失效
    空气分离的过程和安装

    公开(公告)号:US5437160A

    公开(公告)日:1995-08-01

    申请号:US230521

    申请日:1994-04-20

    IPC分类号: C21C5/28 F25J3/04 F25J3/02

    摘要: A process and installation for the separation of air in a cryogenic distillation apparatus (24) comprising a distillation column (30, 42) and in which the supplied air is separated to produce a fraction rich in oxygen and a fraction rich in nitrogen as products. The purities of these products are maintained substantially constant during variations of demand of either product or of the flow rate or of the pressure of the supplied air by introducing an excess of liquid rich in nitrogen into the distillation apparatus when the demand for the product or the flow rate of the supplied air increases, and by withdrawing an excess of liquid rich in nitrogen from the distillation apparatus, and storing this liquid, when the demand for the product or the flow rate of the supplied air decreases. The apparatus comprises a medium pressure column (30) and a low pressure column (42) and a reflux conduit (44; 11, 12) which permits a reflux liquid to be withdrawn from the medium pressure column (30) and to be injected into the low pressure column (42).

    摘要翻译: 一种用于在包含蒸馏塔(30,42)的低温蒸馏装置(24)中分离空气的方法和装置,其中供应的空气被分离以产生富含氧的馏分和富含氮的馏分作为产物。 当产品或产品的需求或对产品的需求或对产品的需求或供应空气的压力的变化时,这些产品的纯度通过将富含氮的过量的液体引入蒸馏装置中而保持基本恒定 供给空气的流量增加,并且通过从蒸馏装置中抽出多余的富含氮气的液体,并且当对产品的需求或供给的空气的流量减少时,储存该液体。 该装置包括中压塔(30)和低压塔(42)和回流导管(44; 11,12),其允许回流液体从中压塔(30)中取出并注入 低压塔(42)。

    METHOD AND DEVICE FOR OPERATING A CHANGE CONVERTER UNIT OF AN OXYGEN STEEL-MAKING PLANT
    9.
    发明申请
    METHOD AND DEVICE FOR OPERATING A CHANGE CONVERTER UNIT OF AN OXYGEN STEEL-MAKING PLANT 有权
    运行氧化钢制造厂变更单元的方法及装置

    公开(公告)号:US20100025899A1

    公开(公告)日:2010-02-04

    申请号:US12448226

    申请日:2007-12-13

    IPC分类号: C22B5/00 C22B4/08

    摘要: A disadvantage during the operation of a change converter unit (1) of an oxygen steel-making plant, wherein converters (4a) that have become unusable due to the wear and tear of the fireproof material are removed from the steel-making stand (2) for repair, and wherein a converter (4b) provided with fireproof material is added in exchange to the steel-making stand (2), is that the connection between the converter vessel and the carrier ring first must be separated, and then either a change carriage provided with a lifting device must be used, or the implementation is limited, or restricted, by the crane capacity when changing AOD converters in stainless steel plants. In order to eliminate said disadvantages, the invention proposes that, for the change process, the worn converter (4a), including the entire converter unit (3a), comprising not only the converter (4a), but also the converter carriage (7), carrier ring (6), tilting drive (5), bottom flushing device (9) and, if present, a carrier ring cooling device (10), is moved out of the steel-making stand (2) into an empty delivery and waiting stand (12s) for repair, and that, at the same time, a further structurally identical complete converter unit (3b), comprising a repaired, ready-to-use converter (4b), is moved from a further delivery and waiting stand (12b) into the steel-making stand (2).

    摘要翻译: 在制氧设备的变换器单元(1)的操作期间的缺点是,由于耐火材料的磨损而变得不可用的转换器(4a)从炼钢台(2) ),并且其中设置有耐火材料的转炉(4b)被更换到炼钢支架(2),是转换器容器和承载环之间的连接必须首先分离,然后是 在更换不锈钢设备中的AOD转换器时,必须使用带提升装置的更换托架,或实施受起重机的限制或限制。 为了消除所述缺点,本发明提出,对于改变处理,包括整个转换器单元(3a)的磨损转换器(4a)不仅包括转换器(4a),而且包括转换器支架(7) ,承载环(6),倾斜驱动装置(5),底部冲洗装置(9)以及如果存在的载体环冷却装置(10),则从炼钢架(2)移出到空的输送中, 等待台(12s)进行修理,同时,另外结构相同的完整转换器单元(3b),包括修理好的即用型转换器(4b),从另一个传送和待机台 (12b)进入炼钢台(2)。

    Method of Building a Direct Smelting Plant
    10.
    发明申请
    Method of Building a Direct Smelting Plant 有权
    建立直接冶炼厂的方法

    公开(公告)号:US20070261321A1

    公开(公告)日:2007-11-15

    申请号:US10593062

    申请日:2005-03-17

    申请人: Philip Ions

    发明人: Philip Ions

    IPC分类号: E04G21/00

    摘要: Method of building a direct smelting plant comprising a metal smelting vessel (11) and ancillary plant components such as the components of a hot air supply station (24), an offgas treatment station (32), a solids feed station (41), a hot metal desulphurization station (47) and hot metal and slag launders extending from the smelting vessel (11). The ring track (53) of a ringer crane (51) is installed in front of location at which vessel (11) is to be installed. Crane boom (54) is laid out along elongate stretch of the building site which becomes a corridor (60) between major ancillary components when plant is fully erected. Boom (54) is connected to crane carriage (52) and hoisted to provide high lift capacity over a ground area embracing proposed site of vessel (11) and ancillary components. Prefabricated components are then lifted by crane (51) into appropriate position for final installation. After installation is completed boom (54) is laid down along corridor (60) and crane (51) is dismantled and removed, leaving corridor (60) as an access laneway.

    摘要翻译: 构建直接熔炼设备的方法,包括金属熔炼炉(11)和辅助设备部件,例如热空气供应站(24),废气处理站(32),固体进料站(41), 铁水脱硫站(47)和从冶炼炉(11)延伸的热金属和渣渣。 振铃起重机(51)的环形轨道(53)安装在要安装容器(11)的位置的前面。 起重臂(54)沿着建筑工地的细长伸展布置,当植物完全竖立时,其成为主要辅助部件之间的走廊(60)。 起重臂(54)连接到起重机托架(52)并且提升,以便在包围容器(11)和辅助部件的建议位置的地面区域上提供高提升能力。 然后将预制构件由起重机(51)提升到适当的位置以进行最终安装。 安装完成后,沿着走廊(60)放置吊杆(54),拆卸起重机(51),将走廊(60)作为通道巷道。