Charging device for a rotary hearth furnace
    1.
    发明授权
    Charging device for a rotary hearth furnace 失效
    旋转炉床炉充电装置

    公开(公告)号:US06210155B1

    公开(公告)日:2001-04-03

    申请号:US09424759

    申请日:1999-12-24

    Abstract: The invention relates to a charging device for creating superimposed layers of fine-grained bulk material on a rotating hearth (2). For each layer of bulk material to be charged, said charging device comprises a discharge hopper (22) having an outflow slot (36) and a discharge roller (42) positioned ahead of each outflow slot (26). Said outflow slot (36) and discharge roller (42) extend essentially at a right angle to the direction of rotation of the rotating hearth and the discharge roller (42) has a drive (44), the rotational frequency of which can be controlled.

    Abstract translation: 本发明涉及一种用于在旋转炉床(2)上产生细粒散装材料的叠层的充电装置。 对于每个要充电的散装材料层,所述充电装置包括排出料斗(22),其具有位于每个流出槽(26)前方的流出槽(36)和排出辊(42)。 所述流出槽(36)和排出辊(42)基本上与旋转炉床的旋转方向成直角延伸,并且排出辊(42)具有能够控制其转速的驱动器(44)。

    Process and apparatus for collection of gases and particulates in a
furnace feed system
    2.
    发明授权
    Process and apparatus for collection of gases and particulates in a furnace feed system 失效
    用于在炉送料系统中收集气体和微粒的方法和装置

    公开(公告)号:US4422390A

    公开(公告)日:1983-12-27

    申请号:US346826

    申请日:1982-02-08

    Abstract: A process and apparatus are described for collection of gases and particulates which arise during the feeding of an electric furnace, especially in the manufacture of phosphorus. The collection system for the gases and particulates includes novel explosion panels which are employed in an enclosure that contains the gases and particulates, and the use of such panels also in the ductwork and filter units that conveys and treats the gases and particulates from the enclosure. A further treating system also prevents moisture in the gases and particulates from clogging the filters used to separate the particulates from the gases. Also described is a novel furnace feeding system that can be used in cooperation with the gas and particulate collection system.

    Abstract translation: 描述了用于收集在电炉的进料期间产生的气体和微粒的方法和装置,特别是在制造磷中。 用于气体和颗粒物的收集系统包括在包含气体和微粒的外壳中使用的新型防爆面板,以及在管道系统和过滤器单元中使用这些面板,其传送和处理来自外壳的气体和微粒。 进一步的处理系统还防止气体和微粒中的水分堵塞用于将颗粒与气体分离的过滤器。 还描述了可与气体和颗粒物收集系统配合使用的新型炉送料系统。

    Electric smelting furnace and associated charging equipment and bins
    3.
    发明授权
    Electric smelting furnace and associated charging equipment and bins 失效
    电熔炉及相关充电设备和箱体

    公开(公告)号:US4402083A

    公开(公告)日:1983-08-30

    申请号:US349760

    申请日:1982-02-18

    Abstract: To save space in furnace installations and obtain an optimum continuous charging, an arrangement is disclosed in which electric smelting furnaces are arranged in a furnace bay unilaterally, close to the adjacent ladle bay and the associated charging equipment and bins are provided sequentially in a vertical zone between the crane runways of the two bays. Bins are filled with iron material, such as iron sponge, alloying mechanisms, and fluxing substances by a conveyor traveling thereabove. The contents of bins are delivered through conveying and metering devices which are provided between crane runways to a reversible conveyor extending at a lower level and equipped with discharge mechanisms and fed through a charging tube 1 into electric furnace. A traveling metering device is provided for adding alloying into the furnace, and fluxing material for subsequent treatment in the ladle, through charging tube. A housing encloses the furnace on all sides, to prevent emissions. The furnace bay may be completely separated from the adjacent ladle bay by a protective wall and by shutoff partitions which are provided at both sides of the bins.

    Abstract translation: 为了节省炉装置的空间并获得最佳的连续充电,公开了一种布置,其中电冶炼炉单独地布置在炉舱中,靠近相邻的钢包舱,并且相关的充电设备和箱在垂直区域中顺序地设置 在两个海湾的起重机跑道之间。 用铁质材料,如海绵铁,合金化机构和通过传送带运行的助熔物质填充。 箱体的内容物通过在起重机跑道之间提供的输送和计量装置输送到在较低水平面上延伸并装有排放机构的可逆输送机,并通过加料管1进入电炉。 提供了一种行进式计量装置,用于通过充电管将合金化添加到炉中,以及用于随后在钢包中处理的助熔材料。 一个外壳围绕着炉子,以防止排放。 炉膛可以通过保护壁与相邻的钢包间隔完全分离,并且通过关闭设置在箱体两侧的隔板。

    Apparatus for batch preparation and feeding into the smelting process
    5.
    发明授权
    Apparatus for batch preparation and feeding into the smelting process 失效
    用于批量制备和进料到冶炼过程中的装置

    公开(公告)号:US4708640A

    公开(公告)日:1987-11-24

    申请号:US945179

    申请日:1986-12-22

    Abstract: The present invention relates to a method and apparatus for preparing a feed mixture, made of several batch components, at one stage in order to feed it into a smelting furnace. The preparation of the batch may include the preheating and drying of the material, the removal of crystal waters and evaporable substances as well as the conduction of the batch into the smelting furnace. According to the invention, a hot inert gas is conducted through a downwards settling batch so that the gas is mixed into the batch as well as possible, but even partial fluidization is prevented. The apparatus of the invention comprises a pretreatment silo (6) which is uniform at the upper part but is divided into several sub-silos (7) at the lower part. At the lower part of the sub-silos there are connected ducts (8) wherealong the batch flows into the smelting furnace (9) located below the pretreatment silo (6). In between the sub-silos (7) there is located the gas distribution chamber (34), wherefrom the gases are distributed through the distribution ducts (35) extending to the sub-silos and the gases are discharged at the top (41) of the silo (6). The employed gas is obtained by means of burning the exhaust gases (10) from the smelting furnace and by combining them with cleaned circulation gases (25).

    Abstract translation: 本发明涉及在一个阶段制备由多个批次成分制成的进料混合物的方法和装置,以便将其进料到冶炼炉中。 批料的制备可以包括材料的预热和干燥,结晶水和蒸发物质的去除以及批次进入熔炼炉的传导。 根据本发明,热惰性气体通过向下沉降批料传导,使得气体尽可能地混合到批料中,但是甚至防止了部分流化。 本发明的装置包括在上部均匀的预处理筒仓(6),但在下部分成几个子仓(7)。 在子仓的下部有连接的管道(8),其中批料流入位于预处理筒仓(6)下方的熔炼炉(9)中。 在子仓(7)之间设有气体分配室(34),气体分布室(34)通过延伸到子仓的分配管道(35)分布,并且气体在顶部(41)处排出 筒仓(6)。 所采用的气体是通过从冶炼炉中燃烧废气(10)并将其与清洁的循环气体(25)组合而获得的。

    Apparatus for collection of gases and particulates in a furnace feed
system
    6.
    发明授权
    Apparatus for collection of gases and particulates in a furnace feed system 失效
    用于在炉送料系统中收集气体和微粒的装置

    公开(公告)号:US4368676A

    公开(公告)日:1983-01-18

    申请号:US169248

    申请日:1980-07-16

    Abstract: A process and apparatus are described for collection of gases and particulates which arise during the feeding of an electric furnace, especially in the manufacture of phosphorus. The collection system for the gases and particulates includes novel explosion panels which are employed in an enclosure that contains the gases and particulates, and the use of such panels also in the ductwork and filter units that conveys and treats the gases and particulates from the enclosure. A further treating system also prevents moisture in the gases and particulates from clogging the filters used to separate the particulates from the gases. Also described is a novel furnace feeding system that can be used in cooperation with the gas and particulate collection system.

    Abstract translation: 描述了用于收集在电炉的进料期间产生的气体和微粒的方法和装置,特别是在制造磷中。 用于气体和颗粒物的收集系统包括在包含气体和微粒的外壳中使用的新型防爆面板,以及在管道系统和过滤器单元中使用这些面板,其传送和处理来自外壳的气体和微粒。 进一步的处理系统还防止气体和微粒中的水分堵塞用于将颗粒与气体分离的过滤器。 还描述了可与气体和颗粒物收集系统配合使用的新型炉送料系统。

    Metal oxide-bearing green pellets for reducing furnace, method of production of same, method of reduction of same, and reduction facility
    10.
    发明申请
    Metal oxide-bearing green pellets for reducing furnace, method of production of same, method of reduction of same, and reduction facility 有权
    用于还原炉的含金属氧化物的绿色颗粒,其制造方法,还原方法和还原设备

    公开(公告)号:US20100294079A1

    公开(公告)日:2010-11-25

    申请号:US12804844

    申请日:2010-07-29

    Abstract: The present invention provides a method and facility for preventing crumbling and powderization of green pellets when producing high strength green pellets using a powder feedstock and using the pellets in a rotary hearth reducing furnace and for efficiently reducing the same. It comprises kneading by a kneader 5 a feedstock of a powder of a fine particle size (20 to 80 wt % having size of not more than 10 μm) including a metal oxide and carbon-bearing powder fed from a feed storage tank 1 and producing green pellets by a pan type pelletizer 7. The green pellets are screened by a pellet screen 9, then dried by a pellet dryer 11 and reduced by firing in a rotary hearth reducing furnace 13. At that time, the green pellets are continuously conveyed to prevent crumbling.

    Abstract translation: 本发明提供了一种用于在使用粉末原料制备高强度生坯颗粒并在旋转炉床还原炉中使用该颗粒并有效地还原生坯颗粒时,防止生球团粉碎和粉化的方法和设备。 它包括捏合机5将包含金属氧化物的微粒尺寸(20-80重量%,尺寸不大于10μm)的粉末的原料捏合,该原料包括从原料储罐1供给的含有碳的粉末并生产 通过锅式造粒机7生泡粒。生球团丸通过丸粒筛9进行筛选,然后通过粒料干燥器11干燥,并在旋转炉床还原炉13中焙烧还原。此时,将生球团粒连续输送至 防止崩溃。

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