Method for cleaning gases and vapors
    71.
    发明授权
    Method for cleaning gases and vapors 失效
    清洁气体和蒸汽的方法

    公开(公告)号:US3961032A

    公开(公告)日:1976-06-01

    申请号:US531560

    申请日:1974-12-11

    摘要: A method for preventing the formation of boiler scale from after treating gases produced in steel-making by adding to the wash water through which the gases pass a solution containing from 0.5 to 2% by weight HCl and from 100 to 150 grams Fe.sup.+.sup.+ ions per liter. The rate of addition of the solution being such that H.sup.+ and Fe.sup.+.sup.+ ions are supplied to the water in constant amounts per unit time.

    摘要翻译: 一种用于防止在炼钢中产生的气体之后形成锅炉垢的方法,该方法是通过向洗涤水中加入气体通过含有0.5-2%(重量)HCl和100-150克Fe ++的溶液 >离子/升。 将H +和Fe ++离子的溶液的加入速率以每单位时间内恒定的量供给到水中。

    Steelmaking with inert gas blowing
    72.
    发明授权
    Steelmaking with inert gas blowing 失效
    炼钢与惰性气体吹

    公开(公告)号:US3940263A

    公开(公告)日:1976-02-24

    申请号:US509223

    申请日:1974-09-25

    摘要: An oxygen steelmaking process utilizing also an inert gas to reduce the oxidation of a desired element such as chromium while permitting a desirably low carbon level to be reached, is characterized by recovery and recycling of the inert gas for economy. The inert gas is preferably argon and is preferably recovered by fractional distillation so as to reduce the nitrogen in the cycle stream and to recover and store and mix and reuse the argon and oxygen as desired. After removal of dust and carbon dioxide from the effluent gases from the converter, and prior to fractionation, 10-30% of the effluent gas is mixed with a minor part of the recovered oxygen and blown beneath the hood to limit air aspiration and to aid in the combustion of CO.

    摘要翻译: 使用惰性气体的氧炼钢工艺也可以减少期望的元素如铬的氧化,同时允许达到期望的低碳水平,其特征在于用于经济的惰性气体的回收和再循环。 惰性气体优选为氩气,优选通过分馏回收,以便减少循环流中的氮气,并根据需要回收并储存和再利用氩气和氧气。 在从转炉流出的废气中除去灰尘和二氧化碳后,在分馏之前,将10-30%的废气与一小部分回收的氧气混合并在发动机罩下方吹气,以限制空气抽吸,并帮助 在CO的燃烧中。

    Method for operating basic oxygen steel processes with the introduction of carbon dioxide
    73.
    发明授权
    Method for operating basic oxygen steel processes with the introduction of carbon dioxide 失效
    使用二氧化碳介绍操作基本氧化工艺的方法

    公开(公告)号:US3769000A

    公开(公告)日:1973-10-30

    申请号:US3769000D

    申请日:1971-10-04

    申请人: STEEL CORP

    发明人: GLASSMAN D

    IPC分类号: C21C5/40 C21C5/38

    摘要: This invention relates to a method of making steel by the basic oxygen process in which carbon dioxide is injected to form a curtain against the intrusion of atmospheric oxygen and nitrogen and in which high purity carbon monoxide may be recovered from the basic oxygen process off-gases.

    摘要翻译: 本发明涉及一种通过碱性氧法制备钢的方法,其中注入二氧化碳以形成防止大气氧和氮侵入的帘幕,其中可从碱性氧气工艺废气中回收高纯度一氧化碳 。