公开(公告)号：US06682583B1

公开(公告)日：2004-01-27

申请号：US09572459

申请日：2000-05-17

申请人： Kouichi Morioka ,  Toshihide Matsumura ,  Jyunpei Kiguchi

发明人： Kouichi Morioka ,  Toshihide Matsumura ,  Jyunpei Kiguchi

IPC分类号： C22B116

CPC分类号： C22B1/242 ,  C22B1/16 ,  C22B1/20

摘要： Provided is a process for producing sintered ore in which a small amount of a water-soluble compound (a sintering aid) is added to iron ore powder and, thereby, which product shows improved strength and no adverse influence as an ironmaking raw material either without any increase in content of an auxiliary material (CaO) serving as a binder. In production of sintered ore, an aqueous solution is added to iron ore powder and an auxiliary material, the iron ore powder and the auxiliary material are kneaded to form a mixture, and the mixture is granulated to form granules, wherein the aqueous solution contains a water-soluble compound reacting with the iron ore powder to form a reaction product having a melting point of 1200° C. or lower.

摘要翻译： 本发明提供一种烧结矿的制造方法，其中少量的水溶性化合物（烧结助剂）被添加到铁矿石粉末中，由此，作为炼铁原料，哪一种产品具有改善的强度和不会产生不利影响， 作为粘合剂的辅助材料（CaO）的含量的任何增加。 在烧结矿的生产中，向铁矿粉和辅助材料中加入水溶液，将铁矿石粉末和辅助材料混炼形成混合物，将其混合造粒，形成颗粒，其中含有 水溶性化合物与铁矿粉反应形成熔点为1200℃以下的反应产物。

公开(公告)号：US06241808B1

公开(公告)日：2001-06-05

申请号：US09385850

申请日：1999-08-30

申请人： Koichi Morioka ,  Jyunpei Kiguchi

发明人： Koichi Morioka ,  Jyunpei Kiguchi

IPC分类号： C22B116

CPC分类号： C22B1/243 ,  C22B1/2413

摘要： A process for producing fired pellets by granulating finely-ground iron ore and subjecting the resulting granules sequentially to drying, dehydration, preheating, and firing, wherein said process comprises adding an additive to said finely-ground iron ore at the time of granulation, said additive reacting with iron ore to form a compound which has a melting point lower than the preheating temperature. Owing to the additive (or sintering auxiliary) added in a small amount to iron ore powder, it is possible to produce preheated pellets by using the existing grate kiln without increasing the amount of preheating energy. The resulting preheated pellets have improved strength and produce no adverse effect on finished pellets.

摘要翻译： 一种生产烧制球团矿的方法，该方法是将细磨的铁矿石制粒并将所得颗粒依次进行干燥，脱水，预热和烧制，其中所述方法包括在造粒时向所述细磨铁矿石中加入添加剂， 添加剂与铁矿石反应形成熔点低于预热温度的化合物。 由于添加剂（或烧结辅助剂）少量添加到铁矿石粉末中，可以通过使用现有的炉排窑而不增加预热能量来生产预热颗粒。 所得到的预热颗粒具有改善的强度并且对成品颗粒不产生不利影响。