发明名称 |
IRON-ORE PELLET OBTAINING METHOD |
摘要 |
FIELD: metallurgy.SUBSTANCE: components of the charge containing a binding agent in the form of a mixture of bentonite and red mud, and an iron-ore concentrate are dosed and mixed. Pelletisation of the prepared charge and firing of raw pellets is performed. First, red mud is dealkalised with a lime mortar till alkali content is less than 1% and charge in the quantity of 1.0-2.5 wt % is added. Pelletisation is performed at charge humidity of 8.0-9.3 wt %. Ratio of red mud and bentonite in the binding agent is maintained within 2.3-11.4.EFFECT: invention allows reducing the quantity of the binding agent used in the charge at maintenance of high strength properties of the obtained product and prevention of environmental pollution.4 cl, 3 tbl, 1 ex |
申请公布号 |
RU2542186(C1) |
申请公布日期 |
2015.02.20 |
申请号 |
RU20130137079 |
申请日期 |
2013.08.06 |
申请人 |
FEDERAL'NOE GOSUDARSTVENNOE BJUDZHETNOE UCHREZHDENIE NAUKI INSTITUT METALLURGII URAL'SKOGO OTDELENIJA ROSSIJSKOJ AKADEMII NAUK (IMET URO RAN) |
发明人 |
KASHIN VIKTOR VASIL'EVICH;CHESNOKOV JURIJ ANATOL'EVICH;SHESHUKOV OLEG JUR'EVICH;DMITRIEV ANDREJ NIKOLAEVICH;VOLKOV DMITRIJ NIKOLAEVICH;GAZALEEVA GALINA IVANOVNA;BRATYGIN EVGENIJ VLADIMIROVICH |
分类号 |
C22B1/243 |
主分类号 |
C22B1/243 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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