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    Method and configuration for the recovery of thermal energy in the heat treatment of cold-rolled steel strip in a hood-type annealing furnace
    1.
    发明授权
    Method and configuration for the recovery of thermal energy in the heat treatment of cold-rolled steel strip in a hood-type annealing furnace 有权
    在罩式退火炉中冷轧钢带的热处理中回收热能的方法和结构

    公开(公告)号：US09506377B2

    公开(公告)日：2016-11-29

    申请号：US13904091

    申请日：2013-05-29

    Applicant: BILSTEIN GMBH & CO. KG

    Inventor： Gerald Zwickel

    IPC: F01K13/00 ,  C21D9/673 ,  F01K25/08 ,  F27B11/00 ,  F27D17/00 ,  F01K9/00 ,  F22B1/18

    CPC classification number: F01K13/00 ,  C21D9/673 ,  F01K9/003 ,  F01K25/08 ,  F22B1/183 ,  F27B11/00 ,  F27D17/004 ,  Y02E20/14

    Abstract: A method and a configuration recover thermal energy in a thermal treatment of cold-rolled steel strip in an annealing furnace. The steel strip is heated up in a protective gas atmosphere to a temperature above the recrystallization temperature, and is subjected in a first, slow cooling phase and a second, fast cooling phase to a protective gas. The temperature of the protective gas is reduced during the first phase down to an intermediate temperature and in the second phase from the intermediate temperature to a final temperature. A first heat exchanger transfers the thermal energy of the protective gas by an oil circuit and a second heat exchanger to a working medium, and which evaporates and is fed to a steam motor, which converts the thermal energy contained in the working medium into energy.

    Abstract translation: 退火炉中冷轧钢带的热处理方法和结构回收热能。 将钢带在保护气体气氛中加热到高于再结晶温度的温度，并且在第一缓慢冷却阶段和第二快速冷却阶段中经受保护气体。 保护气体的温度在第一阶段降低到中间温度，第二阶段从中间温度降低到最终温度。 第一热交换器通过油路和第二热交换器将保护气体的热能传递到工作介质，并且蒸发并被供给到将包含在工作介质中的热能转换成能量的蒸汽马达。

    System for recovering latent and sensible heat of effluent gases from a melting installation
    2.
    发明授权
    System for recovering latent and sensible heat of effluent gases from a melting installation 失效
    从熔化装置回收污水的潜热和显热的系统

    公开(公告)号：US4398501A

    公开(公告)日：1983-08-16

    申请号：US283880

    申请日：1981-07-16

    Applicant: Mario Mischiatti

    Inventor： Mario Mischiatti

    IPC: F27D17/00 ,  F22B1/18 ,  F22D1/00

    CPC classification number: F22B1/183

    Abstract: System for recovering latent and sensible heat of effluent gases from a cupola for cast iron production or other similar melting installation consequent intermittent operation thereof, for obtaining heat energy or potential electric energy in the form of hot water and/or steam, comprising a thermal unit including an air burner and combustion chamber for burning the effluent gases to form hot combustion gases, two vertical waste heat boilers disposed in series along a flow path downstream of the combustion chamber, the first being a water tube boiler and the second being a fire tube boiler, both having vertical tubes arranged so that the hot gases pass upwardly through the water tubes, thereby licking such tubes, and upon flow reversal thence pass downwardly through the fire tubes, thereby enhancing the self-cleaning thereof, an economizer and optionally a combustion air preheater downstream of the second boiler, and a chimney for the fumes at the end of the flow path, as well as a common external steam separator above the boilers and remote from the flow path for recovering steam from and returning water to each of the boilers, plus a vertical tube superheater connected to the steam separator and including a section inside the top part of the first boiler and/or a section between the two boilers, for supplying superheated steam to an electric energy generating turbine, with recycling thereof as feed water to the thermal unit via the economizer.

    Abstract translation: 用于从用于铸铁生产的冲天炉或其它类似的熔融设备回收潜在和明显的流出气体的系统，从而间歇地运行，用于获得热水和/或蒸汽形式的热能或潜在的电能，包括热单元 包括用于燃烧废气以形成热燃烧气体的空气燃烧器和燃烧室，沿着燃烧室下游的流动路径串联设置的两个垂直废热锅炉，第一个是水管锅炉，第二个是火管 锅炉，两者都具有垂直的管，其布置成使得热气体向上通过水管，从而舔这些管，并且在逆流时，向下通过火管，从而增强其自清洁，节能器和任选的燃烧 在第二锅炉下游的空气预热器和在流路末端的烟气的烟囱，以及一个通信 在锅炉上方的外部蒸汽分离器上并且远离用于从每个锅炉回收和返回水的流动路径，以及连接到蒸汽分离器的垂直管过热器，并且包括在第一锅炉的顶部内部的部分和/ 或两个锅炉之间的部分，用于将过热蒸汽供应到发电涡轮机，并且通过经济器将其作为给水回收到热单元。

    Waste heat recovery power generation plant for sintering facility
    7.
    发明授权
    Waste heat recovery power generation plant for sintering facility 有权
    烧结设备余热回收发电厂

    公开(公告)号：US09551241B2

    公开(公告)日：2017-01-24

    申请号：US14412554

    申请日：2012-07-02

    Applicant: Kazuto Kamazawa ,  Toshiki Ohashi ,  Tomoji Takimoto ,  Katsuki Yasuhara

    Inventor： Kazuto Kamazawa ,  Toshiki Ohashi ,  Tomoji Takimoto ,  Katsuki Yasuhara

    IPC: F01K27/02 ,  F01K11/02 ,  F01K7/18 ,  C22B1/20 ,  F22B1/18 ,  F01N5/02

    CPC classification number: F01K27/02 ,  C22B1/20 ,  F01K7/18 ,  F01K11/02 ,  F01N5/025 ,  F22B1/183 ,  Y02P80/152

    Abstract: To provide a waste heat recovery power generation plant for sintering facility capable of efficiently recovering a waste heat of a sintering machine in addition to that of a sintered-ore cooler, while restraining that sulfuric anhydride contained in an exhaust gas of the sintering machine forms drops. An SM boiler is configured to heat all of or a part of hot water generated by an SC boiler, by introducing a high temperature part of an exhaust gas of a sintering machine. At this time, a temperature of the hot water to be supplied to the SM boiler is controlled such that a temperature of an exhaust gas at an exhaust-gas temperature of the SM boiler is maintained at a temperature higher than an acid dew point.

    Abstract translation: 为了提供一种用于烧结设备的废热回收发电设备，其能够除了烧结矿石冷却器之外还能够有效地回收烧结机的废热，同时抑制烧结机的废气中所含的硫酸酐的形式下降 。 SM锅炉被配置为通过引入烧结机的废气的高温部分来加热由SC锅炉产生的热水的全部或一部分。 此时，控制向SM锅炉供给的热水的温度，使得SM锅炉的废气温度下的废气的温度保持在比酸露点高的温度。

    METHOD FOR USING THE EXHAUST GASES FROM PLANTS FOR RAW IRON MANUFACTURE FOR GENERATING STEAM
    8.
    发明申请
    METHOD FOR USING THE EXHAUST GASES FROM PLANTS FOR RAW IRON MANUFACTURE FOR GENERATING STEAM 审中-公开
    用于生产蒸汽的原料铁制造厂从植物中使用排气的方法

    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。

    System for recovering waste heat from copper converters
    9.
    发明授权
    System for recovering waste heat from copper converters 失效
    从铜转换器回收废热的系统

    公开(公告)号：US3727587A

    公开(公告)日：1973-04-17

    申请号：US3727587D

    申请日：1971-11-17

    Applicant: TREADWELL CORP

    Inventor： NEBGEN W

    IPC: C21C5/38 ,  C22B7/02 ,  C22B15/00 ,  C22B15/06 ,  F22B1/18

    CPC classification number: F22B1/183 ,  C21C5/38 ,  C22B7/02 ,  C22B15/0043 ,  C22B15/0097 ,  Y02P10/22

    Abstract: A copper converter in which copper sulfide is burned to sulfur dioxide is operated with a tight air hood. The gaseous products from the converter contain dust, which melts or is sticky at the temperature at which the gases leave the converter. The gaseous products are mixed with a large amount of cool gases of substantially the same sulfur dioxide content to a temperature at which the dust is no longer sticky, and, if desired, a major portion of the dry dust is removed. The mixed gases are passed through a waste heat boiler which cools them down further. A major portion of the cooled mixed gases is used for the recycling with the hot gases from the converter and a small amount corresponding to the air used in the converter is vented to a plant, such as an acid plant, in which the sulfur dioxide is utilized.

    Abstract translation: 将铜硫化物燃烧成二氧化硫的铜转炉用紧气罩操作。 来自转化器的气态产物含有灰尘，其在气体离开转化器的温度下熔化或粘稠。 将气态产物与大量相同二氧化硫含量的大量冷气体混合至灰尘不再粘稠的温度，如果需要，大部分干粉尘被除去。 混合气体通过废热锅炉，将锅炉进一步冷却。 冷却的混合气体的主要部分用于与来自转化器的热气体的再循环，并且对应于转化器中使用的空气的少量排放到诸如酸性装置的设备，其中二氧化硫是 利用。

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