RU2013137079A - METHOD FOR PRODUCING IRON PELLETS - Google Patents
METHOD FOR PRODUCING IRON PELLETS Download PDFInfo
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- RU2013137079A RU2013137079A RU2013137079/02A RU2013137079A RU2013137079A RU 2013137079 A RU2013137079 A RU 2013137079A RU 2013137079/02 A RU2013137079/02 A RU 2013137079/02A RU 2013137079 A RU2013137079 A RU 2013137079A RU 2013137079 A RU2013137079 A RU 2013137079A
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- RU
- Russia
- Prior art keywords
- red mud
- mixture
- bentonite
- less
- pelletizing
- Prior art date
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- Manufacture And Refinement Of Metals (AREA)
Abstract
1. Способ получения железорудных окатышей, включающий дозирование и смешивание компонентов шихты, содержащей связующее в виде смеси бентонита и красного шлама и железорудный концентрат, окомкование подготовленной шихты и обжиг сырых окатышей, отличающийся тем, что шихта содержит предварительно подготовленный красный шлам в количестве 1,0-2,5 мас.%, окомкование проводят при влажности шихты 8,0-9,3 мас.%, при этом соотношение красного шлама и бентонита в связующем поддерживают в пределах 2,3-11,4.2. Способ по п.1, отличающийся тем, что красный шлам предварительно подвергают регенерации известковым раствором до содержания щелочи менее 1%.3. Способ по п.1, отличающийся тем, что красный шлам перед смешиванием сушат до влажности менее 8 мас.%.4. Способ по п.1, отличающийся тем, что красный шлам и бентонит предварительно измельчают до крупности менее 0,071 мм.1. The method of producing iron ore pellets, comprising dosing and mixing the components of the mixture containing a binder in the form of a mixture of bentonite and red mud and iron ore concentrate, pelletizing the prepared mixture and roasting the raw pellets, characterized in that the mixture contains pre-prepared red mud in an amount of 1.0 -2.5 wt.%, Pelletizing is carried out at a moisture content of the mixture of 8.0-9.3 wt.%, While the ratio of red mud and bentonite in the binder is maintained in the range of 2.3-11.4.2. The method according to claim 1, characterized in that the red mud is previously subjected to regeneration with a lime solution to an alkali content of less than 1%. The method according to claim 1, characterized in that the red mud before mixing is dried to a moisture content of less than 8 wt.%. 4. The method according to claim 1, characterized in that the red mud and bentonite are pre-crushed to a particle size of less than 0.071 mm
Claims (4)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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RU2013137079/02A RU2542186C1 (en) | 2013-08-06 | 2013-08-06 | Iron-ore pellet obtaining method |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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RU2013137079/02A RU2542186C1 (en) | 2013-08-06 | 2013-08-06 | Iron-ore pellet obtaining method |
Publications (2)
Publication Number | Publication Date |
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RU2013137079A true RU2013137079A (en) | 2015-02-20 |
RU2542186C1 RU2542186C1 (en) | 2015-02-20 |
Family
ID=53281894
Family Applications (1)
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RU2013137079/02A RU2542186C1 (en) | 2013-08-06 | 2013-08-06 | Iron-ore pellet obtaining method |
Country Status (1)
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RU (1) | RU2542186C1 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
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CN104694745A (en) * | 2015-03-06 | 2015-06-10 | 江苏永钢集团有限公司 | Preparation method of pellets for blast furnace smelting |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
HU162284B (en) * | 1971-04-17 | 1973-01-29 | ||
SU1008259A1 (en) * | 1982-10-16 | 1983-03-30 | Всесоюзный Научно-Исследовательский И Проектный Институт Алюминиевой,Магниевой И Электродной Промышленности | Binding additive for iron ore material |
RU94025708A (en) * | 1994-07-08 | 1996-06-27 | Научно-производственное внедренческое предприятие "Торэкс" | Process for manufacture of pellets |
RU2459879C2 (en) * | 2010-10-04 | 2012-08-27 | УЧРЕЖДЕНИЕ РОССИЙСКОЙ АКАДЕМИИ НАУК ИНСТИТУТ МЕТАЛЛУРГИИ УРАЛЬСКОГО ОТДЕЛЕНИЯ РАН (ИМЕТ УрО РАН) | Method of making pellets for reduction casting |
RU2487952C1 (en) * | 2011-11-16 | 2013-07-20 | Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Санкт-Петербургский государственный горный университет" | Method of making pellets for metallurgy |
CN102851491A (en) * | 2012-08-06 | 2013-01-02 | 莱芜钢铁集团有限公司 | Red mud composite binder for oxidized pellets |
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2013
- 2013-08-06 RU RU2013137079/02A patent/RU2542186C1/en not_active IP Right Cessation
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RU2542186C1 (en) | 2015-02-20 |
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Effective date: 20180807 |