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    • 6. 发明专利
    • Method of producing dry dust agglomerate and dry dust agglomerate
    • 生产干粉剂和干粉剂的方法
    • JP2014152386A
    • 2014-08-25
    • JP2013025922
    • 2013-02-13
    • Kobe Steel Ltd株式会社神戸製鋼所
    • SAWAYAMA MUNEYOSHITACHIKAWA TAKASHI
    • C22B1/248B09B3/00C22B1/00C22B1/242
    • Y02P10/216
    • PROBLEM TO BE SOLVED: To provide a method of producing a dry dust agglomerate which enables easy and reliable agglomeration of dry dust containing free lime in a stable state, and a dry dust agglomerate.SOLUTION: A method of producing a dry dust agglomerate includes a step of adding water to dry dust while kneading the dry dust, a step of adding a binder to the dry dust added with water while kneading and a step of agglomerating the dry dust added with the binder. The water addition step has a first step of adding water to the dry dust, a step of measuring the maximum temperature of the dry dust added with water and a second step of adding water further to the dry dust when the maximum temperature of the dry dust in the temperature measurement step is 70°C or higher. The water content of the dry dust after addition of the binder is 10 mass% or lower; the amount of water added in the first step is higher than 0 mass% to 11 mass% or lower of the dry weight of the dry dust; and the amount of water added in the second step is higher than 0 mass% to 6 mass% or lower of the dry weight of the dry dust.
    • 要解决的问题:提供一种干燥粉尘团聚体的制造方法,其能够容易且可靠地将含有稳定状态的游离石灰的干粉尘和干粉尘附聚物组合。溶解性:干粉尘团聚体的制造方法包括 在混合干粉尘的同时向干燥灰尘中加水的步骤,在混炼时向添加水的干燥粉末中添加粘合剂的步骤以及附着有粘合剂的干粉尘附聚的步骤。 加水步骤具有向干燥灰尘中添加水的第一步骤,测量添加有水的干燥粉尘的最高温度的步骤,以及当干燥粉尘的最高温度下进一步向干燥灰尘中加入水的第二步骤 在温度测量步骤中为70℃以上。 添加粘合剂后的干粉的含水量为10质量%以下; 在第一步骤中添加的水的量高于干粉尘的干重的0质量%至11质量%以下; 并且在第二步骤中加入的水量高于干粉尘干重的0质量%至6质量%。
    • 9. 发明专利
    • Method of manufacturing reduced iron agglomerate
    • 制造减少铁素体的方法
    • JP2013209748A
    • 2013-10-10
    • JP2013038838
    • 2013-02-28
    • Kobe Steel Ltd株式会社神戸製鋼所
    • KIKUCHI SHOICHIHARADA TAKAOYOSHIDA SHINGO
    • C21B13/10C22B1/242C22B5/10
    • C21B11/08B22F9/22C21B3/00C21B13/0046C21B13/105C22B1/245
    • PROBLEM TO BE SOLVED: To provide a method of manufacturing reduced iron agglomerates which can not only improve the yield ratio of the reduced iron agglomerates having a large particle diameter but also improve productivity by shortening the manufacturing time, and can reduce the content of an impurity element like sulfur in the reduced iron agglomerates as much as possible, in manufacturing the reduced iron agglomerates by heating the agglomerates containing a mixture as a raw material including at least an iron oxide-containing material and a carbonaceous reducing agent and by reduction-melting the oxidized iron in the mixture in a moving-bed type heating apparatus.SOLUTION: This invention relates to a method for manufacturing reduced iron agglomerates by charging and heating agglomerates containing an iron oxide-containing material and a carbonaceous reducing agent on the furnace floor of a moving-bed type heating furnace and reducing the oxidized iron in the agglomerates, wherein the average particle diameter of the iron oxide-containing material is 4-23 μm and the iron oxide-containing material having a particle diameter of 10 μm or less accounts for 18 mass% or more of the agglomerates.
    • 要解决的问题:提供一种制造还原铁附聚物的方法,其不仅可以提高具有大粒径的还原铁附聚物的屈服比,还可以通过缩短制造时间来提高生产率,并且可以降低杂质含量 通过加热含有作为至少含有氧化铁的材料和碳质还原剂的原料的混合物的混合物来制造还原铁附聚物,通过将还原铁附聚物还原熔融 在移动床式加热装置中的混合物中的氧化铁。本发明涉及一种通过在含有氧化铁的材料和碳质还原剂的装配和加热在 移动式加热炉,还原附聚物中的氧化铁,其中t 其含氧化铁材料的平均粒径为4〜23μm,粒径为10μm以下的含氧化铁的材料占凝聚体的18质量%以上。