Metal melting apparatus
    12.
    发明授权

    公开(公告)号:US06537485B2

    公开(公告)日:2003-03-25

    申请号:US09866594

    申请日:2001-05-30

    IPC分类号: C22B900

    摘要: A melting apparatus having a compact structure, of economical equipment cost, enabling to vacuum melting and refining at high productivity. A metal melting apparatus has a structure in which a refractory furnace wall 12 is furnished on an outer circumference thereof with a seal jacket 16 of air tight and non-electrical conductivity, and disposed with vertical water cooling copper pipes 47 along the inner circumference of the seal jacket 16 at predetermined space, and the furnace casing 10 is arranged at the outer part to encircle the furnace casing with an induction heating coil 38, and the furnace casing 10 is secured to a frame 42 by means of the seal jacket 16 for reinforcing the structure. The seal jacket 16 of the furnace casing 10 is fixed to the frame via an upper flange 44 and a lower flange 28.

    Reactor for iron making
    13.
    发明授权
    Reactor for iron making 失效
    炼铁反应堆

    公开(公告)号:US4790516A

    公开(公告)日:1988-12-13

    申请号:US865301

    申请日:1986-05-21

    摘要: A reactor for iron making having an upper gas blowing nozzle, a lower gas blowing nozzle, and an iron scrap charging inlet. A vertical shaft is installed directly above the inlet at the top part of the reactor. A mechanism is provided in the lower end of the vertical shaft for controlling charging of the iron scrap to the reactor. A by-pass tube is connected between the top part of the reactor and a gas inlet in the vertical shaft directly above the mechanism for controlling the charging of iron scrap and permits exit of high temperature exhaust gases from the reactor and introduces the exhaust gases to flow through the iron scrap in the vertical shaft to pre-heat the same. Structure is provided in the by-pass tube for introducing oxygen gas or air into the high temperature exhaust gases to react therewith and generate further heat. The structure can comprise a nozzle. The mechanism for controlling charging of iron scrap can include a damper positioned immediately above the inlet in the top part of the reactor which is movable to open and close the vertical shaft together with a stopper positioned above the damper and movable to open and close the vertical shaft. Certain amounts of iron scrap can thereby be charged to the reactor by sequential openings and closings of the damper and the stopper.

    摘要翻译: 一种用于制铁的反应器,其具有上部气体喷射喷嘴,下部气体吹送喷嘴和废铁填充入口。 垂直轴安装在反应堆顶部的进口正上方。 在垂直轴的下端设有机构,用于控制废铁向反应堆的充电。 旁通管连接在反应器的顶部和直接在机构上方的垂直轴中的气体入口之间,用于控制废铁的充电,并允许从反应器排出高温废气并将排气引入 流过垂直轴中的废铁,以预加热。 在旁通管中设置有用于将氧气或空气引入高温废气中的结构与其反应并产生进一步的热量。 该结构可以包括喷嘴。 用于控制废铁充电的机构可以包括位于反应器顶部的入口正上方的阻尼器,其可移动以与位于阻尼器上方的止动件一起打开和关闭垂直轴,并可移动以打开和关闭垂直 轴。 因此,通过顺序地开启和关闭阻尼器和塞子,可以将一定量的废铁装入反应器。

    Method of and apparatus for melting scrap
    14.
    发明授权
    Method of and apparatus for melting scrap 失效
    熔融废料的方法和设备

    公开(公告)号:US4531971A

    公开(公告)日:1985-07-30

    申请号:US568162

    申请日:1984-01-04

    IPC分类号: C21C5/52 C21C5/56 C21C7/00

    摘要: A method of melting iron scrap using an arc furnace with reduced electric power consumption.In one of a pair of vessels which are arc furnace bodies, melting of the scrap by heat of arc is carried out while a carbonaceous material and oxygen-containing gas are introduced therein to cause oxidation of C to CO to make use of the oxidation heat. Thus formed hot exhaust gas containing CO is introduced to the other vessel of the pair and oxygen-containing gas is added thereto to cause oxidation of CO to CO.sub.2 thereby heating the scrap loaded in the vessel. Melting is further continued by changing the roles of the two vessels to each other.Generation of the CO-containing hot gas can be performed in a separately installed gasification furnace.

    摘要翻译: 使用电弧炉熔炼废铁的方法,降低电力消耗。 在作为电弧炉体的一对容器中的一个中,通过电弧的热量熔化废料,同时将碳质材料和含氧气体引入其中以使C氧化成CO以利用氧化热 。 将这样形成的含有CO的热废气引入到该对的另一个容器中,并向其中加入含氧气体以使CO氧化成CO 2,从而加热装载在容器中的废料。 通过改变两艘船的作用相互进一步地进行融化。 含CO的热气体的生成可以在分开设置的气化炉中进行。