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公开(公告)号:US20030188603A1
公开(公告)日:2003-10-09
申请号:US10395340
申请日:2003-03-25
发明人: Takeshi Maki , Yoshiyuki Matsui , Takeshi Sugiyama , Takao Harada , Masahiko Tetsumoto , Hiroshi Tamazawa , Tadashi Ueda , Koichi Morioka , Nobuyuki Iwasaki , Hidetoshi Tanaka , Kojiro Fuji , Hiroshi Sugitatsu
IPC分类号: C21B011/00
CPC分类号: C22B19/30 , C21B13/0046 , C21B13/105 , C22B1/245 , C22B5/10 , C22B5/16 , Y02P10/216
摘要: A method for making reduced iron using blast-furnace sludge is provided. The method includes a mixing step of mixing the blast-furnace sludge and an iron-oxide-containing powder to prepare a mixed material, an agglomerating step of agglomerating the mixed material to form agglomerates, a feeding step of feeding the agglomerates onto a continuously moving hearth, and a reducing step of heating the agglomerates to remove zinc and reduce the agglomerates.
摘要翻译: 提供了使用高炉污泥制造还原铁的方法。 该方法包括混合高炉污泥和含铁氧化物的粉末以制备混合材料的混合步骤,使混合材料凝聚以形成附聚物的附聚步骤,将附聚物进料到连续移动的进料步骤 炉底,以及还原步骤,加热附聚物以除去锌并还原附聚物。
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公开(公告)号:US20030196517A1
公开(公告)日:2003-10-23
申请号:US10396516
申请日:2003-03-26
IPC分类号: C22B011/10
CPC分类号: F23G7/14 , B09B3/00 , B09B3/0083 , B09C1/06 , F23G2201/50 , F23G2201/602 , F23G2201/701 , F23G2209/30 , F23G2900/50209
摘要: The present invention provides a method of purifying polluted soil and/or burned ash containing heavy metals and/or organic compounds with a higher throughput than a conventional method. In this method, polluted soil and/or burned ash is dried by, for example, a rotary dryer so that the moisture content is 5% by mass or less, preferably 3% by mass or less, and then large lumps having a particle diameter of 10 mm or more are removed by a vibrating screen. Only an undersize portion is formed into a briquette having a volume of about 6 cm3 by a press molding machine. The briquette is charged in a rotary hearth furnace together with the large lumps, and heated in the furnace to remove or detoxify the heavy metals and organic compounds by evaporation with high efficiency.
摘要翻译: 本发明提供了一种净化污染土壤和/或含有重金属和/或有机化合物的烧灰的方法,其具有比常规方法更高的产量。 在该方法中,通过例如旋转式干燥机将污染的土壤和/或燃烧灰分干燥,使得水分含量为5质量%以下,优选为3质量%以下,然后将具有粒径 10mm以上的振动筛除去。 仅通过压制成型机将小尺寸部分形成为具有约6cm 3体积的压块。 将煤块与大块结块一起装入旋转炉床炉中,并在炉内加热,以高效蒸发除去或解毒重金属和有机化合物。
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