公开(公告)号：US4639927A

公开(公告)日：1987-01-27

申请号：US757985

申请日：1985-07-23

申请人： Kunihiko Uno ,  Kunihiro Nakazato ,  Masahide Nishigaki ,  Hajime Hirotomi ,  Shigeo Kimura ,  Sadao Kurihara ,  Hideo Tanaka ,  Jiro Mihara ,  Kiyoaki Takai

发明人： Kunihiko Uno ,  Kunihiro Nakazato ,  Masahide Nishigaki ,  Hajime Hirotomi ,  Shigeo Kimura ,  Sadao Kurihara ,  Hideo Tanaka ,  Jiro Mihara ,  Kiyoaki Takai

IPC分类号： F27D3/15 ,  F27D3/14

CPC分类号： F27D3/15

摘要： An electric melting furnace is provided with an exit comprising an overflow dam and a downwardly extending unmolten-substances blocking plate placed inwardly of the overflow dam. The exit is positioned on or near an extension of a line connecting the center O of a furnace body and one of the furnace electrodes, the distance L in centimeters between the electrode and the overflow dam being determined by the equation: ##EQU1## where P is the electric furnace load (w) and K is a constant in the range of 16 to 25. Lighter molten substances are continuously discharged over the dam under the weight of the combustion residue. Heavier molten metals accumulate on the furnace floor and are discharged over dam by tilting the furnace body in the direction of the exit. The furnace has a measuring means placed at an upper interior portion of the furnace for measuring the temperature of the furnace gases and another measuring means placed on the discharge passage for measuring the quantity of the luminous energy radiated by the molten substances. The values obtained by the temperature measuring means and the luminous energy measuring means are compared with respective standard values as set in advance to determine the feeding of the combustion residue. When one or both of the feeding conditions is/are met, a fixed amount of the combustion residue is fed into the furnace by opening a feeding gate.

摘要翻译： 电熔炉设置有一个出口，该出口包括一个溢流坝和一个放置在溢流坝内部的向下延伸的未熔化物质阻挡板。 出口位于连接炉体的中心O和炉电极之一的线的延伸部上或附近，电极和溢流坝之间的距离L以厘米为单位由以下等式确定：其中P 是电炉负荷（W），K是16至25范围内的常数。较轻的熔融物质在燃烧残余物重量下连续排放到坝上。 较重的熔融金属积聚在炉底上，并通过沿着出口方向倾斜炉身排放到大坝上。 炉具有放置在炉的上部内部的测量装置，用于测量炉内气体的温度，以及放置在排放通道上的另一测量装置，用于测量由熔融物质辐射的发光量。 将由温度测量装置和光能测量装置获得的值与预先设定的各个标准值进行比较，以确定燃烧残余物的供给。 当满足进料条件中的一个或两个时，通过打开进料口将固定量的燃烧残余物进料到炉中。