公开(公告)号：US06676725B2

公开(公告)日：2004-01-13

申请号：US10122244

申请日：2002-04-16

申请人： Jay Aota ,  Lucie Morin

发明人： Jay Aota ,  Lucie Morin

IPC分类号： C04B3510

CPC分类号： C22B7/02 ,  C22B1/243 ,  Y02P10/212

摘要： Shaped bodies containing particulate iron materials, such as cast pellets, briquettes and the like, with sufficient strength to withstand temperatures of up to at least 1000° C. can be obtained by using a fully hydrated high-alumina cement as the binder. The strength of the pellets at elevated temperatures can be further enhanced by adding small amounts of bentonite, silica fume or other suitable supplementary cementing materials, and super plasticizer. The iron particulate materials, typically having a size range of from about 0.01 mm to 6 mm, include ore fines, sinter fines, BOF and EAF dusts, mill scale, and the like. Powdered carbonaceous material, such as ground coal or coke, may also be added to the pellets. The shaped bodies are suitable for use in blast furnaces, basic oxygen furnaces, and in DRI processes.

摘要翻译： 通过使用完全水合的高铝水泥作为粘合剂，可以获得含有足够强度以承受高达至少1000℃的温度的颗粒状铁材料（例如铸造颗粒，团块等）的成形体。 通过加入少量的膨润土，硅灰或其它合适的辅助粘合材料和超级增塑剂可以进一步提高高温下颗粒的强度。 典型地具有约0.01mm至6mm尺寸范围的铁颗粒材料包括矿石细粉，烧结细粉，BOF和EAF粉尘，粉垢等。 还可以将粉状碳质材料，例如研磨煤或焦炭加入到颗粒中。 成型体适用于高炉，碱性氧气炉和DRI工艺。

公开(公告)号：US06409964B1

公开(公告)日：2002-06-25

申请号：US09431263

申请日：1999-11-01

申请人： Jay Aota ,  Lucie Morin

发明人： Jay Aota ,  Lucie Morin

IPC分类号： B22F322

CPC分类号： C22B7/02 ,  C22B1/243 ,  Y02P10/212

摘要： Shaped bodies containing particulate iron materials, such as cast pellets, briquettes and the like, with sufficient strength to withstand temperatures of up to at least 1000° C. can be obtained by using a fully hydrated high-alumina cement as the binder. The strength of the pellets at elevated temperatures can be further enhanced by adding small amounts of bentonite, silica fume or other suitable supplementary cementing materials, and super plasticizer. The iron particulate materials, typically having a size range of from about 0.01 mm to 6 mm, include ore fines, sinter fines, BOF and EAF dusts, mill scale, and the like. Powdered carbonaceous material, such as ground coal or coke, may also be added to the pellets. The shaped bodies are suitable for use in blast furnaces, basic oxygen furnaces, and in DRI processes.

摘要翻译： 通过使用完全水合的高铝水泥作为粘合剂，可以获得含有足够强度以承受高达至少1000℃的温度的颗粒状铁材料（例如铸造颗粒，团块等）的成形体。 通过加入少量的膨润土，硅灰或其它合适的辅助粘合材料和超级增塑剂可以进一步提高高温下颗粒的强度。 典型地具有约0.01mm至6mm尺寸范围的铁颗粒材料包括矿石细粉，烧结细粉，BOF和EAF粉尘，粉垢等。 还可以将粉状碳质材料，例如研磨煤或焦炭加入到颗粒中。 成型体适用于高炉，碱性氧气炉和DRI工艺。