摘要:
A method for producing a molten iron in a blast furnace comprises the steps of: preparing an optical fiber covered with a metallic tube; measuring a temperature of the molten iron flow discharged from a tap hole of the blast furnace by means of making use of a metallic tube covered by the optical fiber to obtain an information of the temperature of the molten iron; and controlling a heat conditions of the blast furnace, based on the obtained information of the temperature of the molten iron. Controlling a heat conditions is achieved by using a heat conditions estimation model, and by inferring a level and a transition of the heat conditions in the furnace.
摘要:
A system for monitoring coal flow through a coal delivery tube in a blast furnace fuel injection system is disclosed, which system automatically actuates a purge cycle for clearing accumulations of coal from a coal lance when a temperature drop indicative of an imminent blockage is detected. A method of controlling the purge system is also disclosed.
摘要:
The present invention generally relates to processes and apparatuses for the integration of a blast furnace and an air separation plant to increase blast furnace production. The present invention recovers energy from the air separation through the expansion of a product stream.
摘要:
A synthetic resin fuel for stable production of pig iron in a blast furnace. It is in the form of cylindrical pellets, each measuring X mm in thickness and Y mm in diameter, with X and Y satisfying the three expressions of 3.0≦X≦10, 2≦Y≦20, and Y/X≧1.5. The cylindrical pellets are produced by melting a resin, solidifying the melt, and cutting the solidified product. The cylindrical pellets should preferably contain more than 0.05 wt % of water. A process for producing pig iron in a blast furnace by blowing a synthetic resin fuel into a blast furnace through tuyeres, wherein said synthetic resin fuel is in the form of cylindrical pellets, each measuring X mm in thickness and Y mm in diameter, with X and Y satisfying the above-mentioned three expressions. The cylindrical pellets should preferably have a size distribution such that those having a diameter within ±20 % of the average diameter account for more than 70 wt %.
摘要翻译:用于在高炉中稳定生产生铁的合成树脂燃料。 它是圆柱形颗粒的形式,每个测量尺寸为Xmm厚度和Ymm直径,X和Y满足3.0 <= X <= 10,2 <= Y <= 20和Y / X的三个表达式 > = 1.5。 圆柱形颗粒通过熔化树脂,固化熔体和切割固化产物来制备。 圆柱形颗粒应优选含有大于0.05重量%的水。 通过将合成树脂燃料通过风口吹入合成树脂燃料进入鼓风炉中的生铁的方法,其中所述合成树脂燃料为圆柱形颗粒,其厚度为Xmm,直径为Ymm,X为 和Y满足上述三个表达式。 圆柱形颗粒应优选具有尺寸分布,使得直径在平均直径的±20%内的那些占70重量%以上。
摘要:
A treatment process for resins or organic compounds, or waste plastics containing them, whereby a portion of the resins or organic compounds, or waste plastics containing them are subjected to combustion treatment in a blast furnace while the remainder is subjected to thermal decomposition treatment in a coke oven.
摘要:
A method for reducing the NOx content of combustion gases from combustion in a commercial furnace wherein hot oxygen and carbonaceous fuel such as pulverized coal react to form a fuel-rich gas phase mixture which is then used to reduce NOx to nitrogen gas.
摘要:
The combined installation comprises at least one metal production unit (II), including at least one, and typically a series of metal production or treatment units (1-6), and at least one air gas separation unit (III) including at least one outlet for at least one air gas (14-18), the units being supplied with compressed air with a low water vapor content by a common compressed air production unit (I), and with at least one of the gas outlets (14-18) from the separation unit (III) connected to at least one of the devices (1-6) of the production unit, to supply the latter with gas.