公开(公告)号：US20150136046A1

公开(公告)日：2015-05-21

申请号：US14395944

申请日：2013-04-05

Applicant: SIEMENS VAI METALS TECHNOLOGIES GMBH

Inventor： Robert Millner ,  Kurt Wieder ,  Johann Wurm

IPC: F22B1/18 ,  F27D17/00

CPC classification number: F22B1/183 ,  F01K23/064 ,  F22B1/1838 ,  F22B1/1861 ,  F27D17/004 ,  Y02E20/14 ,  Y02E20/16

Abstract: A method and a system for generating steam using the waste gases from plants for pig iron manufacture: waste gas removed as export gas (12) from the plant for pig iron manufacture is thermally utilized by combustion, and the waste gas from the combustion is fed to a heat-recovery steam generator (29). To utilize more energy from the export gas (12) for power generation, the export gas (12) is fed into a combustion chamber (23) located upstream of the heat-recovery steam generator (29), and after the combustion in the heat-recovery steam generator (29), heat is extracted from the export gas (12) without the export gas (12) passing through a gas turbine between combustion and heat-recovery steam generator. The pressure in the combustion chamber (23) and heat-recovery steam generator (29) are set above atmospheric pressure by means of a gas flow regulator (31) that is located downstream of the heat-recovery steam generator (29).

Abstract translation: 用于生产生铁的来自植物的废气产生蒸汽的方法和系统：从用于生铁的工厂的出口气体（12）去除的废气被燃烧热利用，并且来自燃烧的废气被进料 到热回收蒸汽发生器（29）。 为了利用来自出口气体（12）的更多能量用于发电，出口气体（12）被供给到位于热回收蒸汽发生器（29）上游的燃烧室（23）中，并且在热量燃烧之后 - 再生蒸汽发生器（29），从输出气体（12）中提取热量，而不会在燃烧和热回收蒸汽发生器之间通过燃气轮机的出口气体（12）。 通过位于热回收蒸汽发生器（29）下游的气流调节器（31）将燃烧室（23）和热回收蒸汽发生器（29）中的压力设定在大气压以上。

公开(公告)号：US09574247B2

公开(公告)日：2017-02-21

申请号：US14465375

申请日：2014-08-21

Applicant: SIEMENS VAI METALS TECHNOLOGIES GMBH

Inventor： Robert Millner ,  Johannes Leopold Schenk ,  Kurt Wieder

IPC: C21B5/00 ,  C21B5/06 ,  C21B7/00 ,  C21B13/00 ,  F02C6/00 ,  F27B1/26 ,  F27D17/00

CPC classification number: C21B5/06 ,  C21B7/002 ,  C21B13/00 ,  C21B2100/02 ,  C21B2100/06 ,  C21B2100/282 ,  C21B2100/62 ,  F02C6/00 ,  F27B1/26 ,  F27D17/001 ,  Y02P10/122 ,  Y02P10/126 ,  Y02P10/128 ,  Y02P10/265 ,  Y02P10/283

Abstract: In a method and a device for operating a smelting reduction process, at least part of an export gas from a blast furnace or a reduction unit is thermally utilized in a gas turbine and the exhaust gas of this gas turbine is used in a waste heat steam generator to generate steam. The remaining part of the export gas is fed to a CO2 separation apparatus, the tail gas thereby obtained being fed to a waste heat steam generator and burned for additional steam generation. The combustible components of the tail gas are sent for thermal utilization in a steam generator, so that the overall energy balance of the thermal use of the export gas is improved. In addition, a further part of the export gas is qualitatively improved by the CO2 separation apparatus, so as to generate a high-quality reduction gas which can be supplied for metallurgical use.

Abstract translation: 在用于操作冶炼还原过程的方法和装置中，来自高炉或还原单元的输出气体的至少一部分在燃气轮机中热利用，并且该燃气轮机的废气用于废热蒸汽 发电机产生蒸汽。 将出口气体的剩余部分供给到CO 2分离装置中，由此获得的尾气被供给到废热蒸汽发生器，并被燃烧用于另外的蒸汽产生。 尾气中的可燃组分被送到蒸汽发生器中进行热利用，从而提高出口气体热利用的总能量平衡。 此外，通过二氧化碳分离装置对出口气体的另一部分进行定性改善，从而产生可用于冶金用途的高品质还原气体。

公开(公告)号：US20150114180A1

公开(公告)日：2015-04-30

申请号：US14390813

申请日：2013-04-18

Applicant: SIEMENS VAI METALS TECHNOLOGIES GMBH

Inventor： Georg Aichinger ,  Karl-Heinz Beham ,  Reinhard Pum ,  Wolfgang Sterrer ,  Kurt Wieder ,  Johann Wurm

IPC: C21B13/02 ,  F27B15/10 ,  C21B13/00

CPC classification number: C21B13/02 ,  F27B15/006 ,  F27B15/10

Abstract: Apparatus for production of metal sponge or pig iron from metal oxide containing material in piece form using a reduction gas. A reduction reactor shaft (1); reduction gas inlet lines into the interior of the reduction reactor shaft (1); a reduction gas channel body (11) passes through the interior of the reduction reactor shaft (1) for distributing reduction gas; a reduction gas supply line for reduction gas and located below the reduction gas channel body (11) at at least one inner-wall end of the reduction gas channel body (11). The reduction gas channel body (11) has a carrier tube through which a cooling medium can flow. A first portion of the reduction gas is introduced into the bed by reduction gas inlet lines which end in the interior of the reduction reactor shaft. A second portion of the reduction gas is distributed into the bed by the reduction gas channel body. The second portion is supplied essentially vertically below the reduction gas channel body into the interior of the reduction reactor shaft.

Abstract translation: 用于使用还原气体从含有金属氧化物的材料制成金属海绵或生铁的装置。 还原反应器轴（1）; 还原气体入口管线进入还原反应器轴（1）的内部; 还原气体通道体（11）通过还原反应器轴（1）的内部，用于分配还原气体; 用于还原气体的还原气体供给管线，位于还原气体通道体（11）的至少一个内壁端部的位于还原气体通道体（11）的下方。 还原气体通道体（11）具有载体管，冷却介质可以通过该载体管流动。 还原气体的第一部分通过终止在还原反应器轴内部的还原气体入口管线引入床中。 还原气体的第二部分由还原气体通道体分配到床中。 第二部分基本上垂直地供应在还原气体通道体下方进入还原反应器轴的内部。