Electric ARC melting furnace
    1.
    发明公开
    Electric ARC melting furnace 失效
    Elektrolichtbogenofen

    公开(公告)号:EP0884545A1

    公开(公告)日:1998-12-16

    申请号:EP98202286.5

    申请日:1994-04-14

    摘要: An electric arc melting furnace comprises a furnace shell (1) with an electrode (3) for melting scrap by heat of arc, an air blasting port (20) for blasting air, oxygen or oxygen-enriched air into the furnace shell (1) through an air control valve (19), a carbon blasted quantity indicator (CI) for measuring quantity of carbon to be charged into the furnace shell (1), a scrap charged quantity indicator (SI) for measuring quantity of the scrap charged into the furnace shell (1), an oxygen blasted quantity indicator (OI) for measuring quantity of oxygen blasted into the furnace shell (1) and an arithmetic processor (7) for computing quantity of air required for complete combustion of carbon monoxide (23) in the furnace shell (1) in response to measured value from the indicators (CI)(SI)(OI) to control a degree of opening of the air control valve (19). Air with quantity in proportion to the carbon monoxide (23) is blasted through the air blasting port (20), which enables control of combustion temperature in the furnace shell (1) and control of temperature in the scrap preheating device.

    摘要翻译: 一种电弧熔炉包括:具有用于通过电弧熔化废料的电极(3)的炉壳(1),用于将空气喷射的空气喷射口(20),进入炉壳(1)的氧气或富氧空气, 通过空气控制阀(19),用于测量装入炉壳(1)中的碳量的喷砂量指示器(CI),用于测量装入到炉壳(1)中的废料量的废料装料量指示器 炉壳(1),用于测量吹入炉壳(1)的氧气量的氧气喷射量指示器(OI)和用于计算一氧化碳(23)完全燃烧所需的空气量的算术处理器(7) 响应于来自指示器(CI)(SI)(OI)的测量值来控制所述空气调节阀(19)的打开程度的所述炉壳(1)。 通过喷气口(20)喷射与一氧化碳(23)成比例的量的空气,其能够控制炉壳(1)中的燃烧温度和废料预热装置中的温度控制。