COMBUSTION METHOD AND SYSTEM
    5.
    发明申请
    COMBUSTION METHOD AND SYSTEM 有权
    燃烧方法和系统

    公开(公告)号:US20100310996A1

    公开(公告)日:2010-12-09

    申请号:US12743707

    申请日:2008-11-21

    IPC分类号: F23C99/00

    摘要: The invention relates to a method for heating a material in a zone heated by combustion of a fuel with an oxidant by means of a oxyburner comprising an injector arranged within a block defining a chamber with a confinement index Iconf=(S/S′)×(L/L′)×(1/(1+a/100))=0.10; the fuel being injected into the burner chamber with a rate IF and the oxidant being injected into the burner chamber at a rate Iox such that 0.7=IF=3.6 et 0.3=Iox=5.1, provided that when Iox>3.8 then IF=3.3.

    摘要翻译: 本发明涉及一种用于加热燃料与氧化剂燃烧的区域中的材料的方法,所述氧化层包括喷射器,该喷射器布置在限定范围内的限定区域的区块内。Iconf =(S / S')× (L / L')×(1 /(1 + a / 100))= 0.10; 燃料以速率IF注入燃烧器室,并且氧化剂以速率Iox注入燃烧器室,使得当0.7 = IF = 3.6等于0.3 = Iox = 5.1时,条件是当Iox≥3.8时IF = 3.3。

    Process for injection of a gas with the aid of a nozzle
    8.
    发明授权
    Process for injection of a gas with the aid of a nozzle 有权
    借助于喷嘴喷射气体的过程

    公开(公告)号:US06514310B2

    公开(公告)日:2003-02-04

    申请号:US09912533

    申请日:2001-07-26

    IPC分类号: C21C7072

    摘要: The electric arc furnace is equipped with a supersonic injector comprising a so-called Laval nozzle arranged at a certain distance above the bath. The dimensions of the nozzle are calculated as a function of the desired flow rate of oxygen and the desired velocity of the jet, and the pressure of the oxygen at the intake of the nozzle is such that the static pressure of the jet at the exit of the injector is substantially equal to the pressure of the surrounding atmosphere. Preferably, the injector comprises an annular channel for injection of natural gas, and can be used in burner mode at the start of the melting of scrap iron. The velocity of the oxygen is then subsonic.

    摘要翻译: 电弧炉配备有超音速喷射器,其包括布置在浴上方一定距离处的所谓拉瓦尔喷嘴。 喷嘴的尺寸根据期望的氧气流速和喷射的期望速度计算,并且喷嘴入口处的氧气的压力使得喷嘴出口处的喷嘴的静压力 喷射器基本上等于周围大气的压力。 优选地,喷射器包括用于喷射天然气的环形通道,并且可以在废铁熔化开始时以燃烧器模式使用。 然后氧气的速度是亚音速。

    Method for measuring gaseous species by derivation
    9.
    发明授权
    Method for measuring gaseous species by derivation 有权
    通过推导测量气态物质的方法

    公开(公告)号:US07223978B2

    公开(公告)日:2007-05-29

    申请号:US10568698

    申请日:2004-08-31

    IPC分类号: G01N1/22

    摘要: The invention relates to a method for measuring the quantity of chemical species contained in a high-temperature gas, and especially the quantity of CO and/or CO2 contained in a gas emitted from a metal treating furnace, especially a light-arc furnace (EAF) or a converter (BOF). According to the invention, part of the gas to be analysed is extracted, the temperature of said gas is reduced to at least 300° C., preferably to a temperature that is lower than or equal to 200° C., in such a way as to obtain a at a temperature between 300° C., preferably 200° C., and the ambient temperature, and at least the quantity of CO and/or CO2 said gas is then measured by means of the coherent light signal which is emitted by a laser diode through the gas and is retrieved on emergence from the gas.

    摘要翻译: 本发明涉及一种用于测量包含在高温气体中的化学物质量的方法,尤其涉及从金属处理炉排出的气体中所含的CO和/或CO 2的量, 特别是电弧炉(EAF)或转炉(BOF)。 根据本发明,提取待分析气体的一部分,将所述气体的温度降低至至少300℃,优选降低到等于或等于200℃的温度,以这种方式 在300℃,优选200℃的温度和环境温度之间获得,并且至少所述气体的CO和/或CO 2 2的量随后通过手段 由激光二极管通过气体​​发射的相干光信号,并且在从气体出现时被检索。

    Method for measuring gaseous species by derivation
    10.
    发明申请
    Method for measuring gaseous species by derivation 有权
    通过推导测量气态物质的方法

    公开(公告)号:US20060202123A1

    公开(公告)日:2006-09-14

    申请号:US10568698

    申请日:2004-08-31

    IPC分类号: G01N21/35

    摘要: The invention relates to a method for measuring the quantity of chemical species contained in a high-temperature gas, and especially the quantity of CO and/or CO2 contained in a gas emitted from a metal treating furnace, especially a light-arc furnace (EAF) or a converter (BOF). According to the invention, part of the gas to be analysed is extracted, the temperature of said gas is reduced to at least 300° C., preferably to a temperature that is lower than or equal to 200° C., in such a way as to obtain a gas at a temperature between 300° C., preferably 200° C., and the ambient temperature, and at least the quantity of CO and/or CO2 in said gas is then measured by means of the coherent light signal which is emitted by a laser diode through the gas and is retrieved on emergence from the gas.

    摘要翻译: 本发明涉及一种用于测量包含在高温气体中的化学物质量的方法,尤其涉及从金属处理炉排出的气体中所含的CO和/或CO 2的量, 特别是电弧炉(EAF)或转炉(BOF)。 根据本发明,提取待分析气体的一部分,将所述气体的温度降低至至少300℃,优选降低到等于或等于200℃的温度,以这种方式 为了获得在300℃,优选200℃的温度和环境温度之间的气体,并且至少测量所述气体中的CO和/或CO 2 2的量 通过由激光二极管通过气体​​发射的相干光信号,并且在气体出现时被检索。