Method for enhancing quality of coarse-grain magnetite concentrate pellets

Method for enhancing quality of coarse-grain magnetite concentrate pellets

The invention relates to a method for enhancing the quality of coarse-grained magnetite concentrate pellets, which comprises the following steps: 1) finely grinding part of coarse-grained magnetite concentrate to obtain fine-grained magnetite concentrate with the content of-0.074 mm fraction being 9...

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Hauptverfasser: WENG XINGYANG, GU PENG, QIU SHUANG, GAO LIANGZHI, LIU TAO
Format: Patent
Sprache:chi ; eng
Schlagworte:
CHEMISTRY
FERROUS OR NON-FERROUS ALLOYS
METALLURGY
PRETREATMENT OF RAW MATERIALS
PRODUCTION AND REFINING OF METALS
TREATMENT OF ALLOYS OR NON-FERROUS METALS
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creator WENG XINGYANG
GU PENG
QIU SHUANG
GAO LIANGZHI
LIU TAO
description The invention relates to a method for enhancing the quality of coarse-grained magnetite concentrate pellets, which comprises the following steps: 1) finely grinding part of coarse-grained magnetite concentrate to obtain fine-grained magnetite concentrate with the content of-0.074 mm fraction being 95-100%; (2) the fine-grain magnetite concentrate serves as a raw material, pellets are prepared in a laboratory, and the technical indexes that the drop strength is larger than or equal to 5 times per 0.5 m, the compressive strength is larger than or equal to 11 N per pellet, and the burst temperature is larger than or equal to 140 DEG C are achieved; (3) fine-grain magnetite concentrate is used as an additive, and the proportion of the fine-grain magnetite concentrate is 3-10% of the mass of the pellet mixture; and 4) blending the fine-grain magnetite concentrate, the coarse-grain magnetite concentrate, bentonite and an organic binder, uniformly mixing, pelletizing, roasting and cooling to prepare qualified pellet
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(2) the fine-grain magnetite concentrate serves as a raw material, pellets are prepared in a laboratory, and the technical indexes that the drop strength is larger than or equal to 5 times per 0.5 m, the compressive strength is larger than or equal to 11 N per pellet, and the burst temperature is larger than or equal to 140 DEG C are achieved; (3) fine-grain magnetite concentrate is used as an additive, and the proportion of the fine-grain magnetite concentrate is 3-10% of the mass of the pellet mixture; and 4) blending the fine-grain magnetite concentrate, the coarse-grain magnetite concentrate, bentonite and an organic binder, uniformly mixing, pelletizing, roasting and cooling to prepare qualified pellet</abstract><oa>free_for_read</oa></addata></record>
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subjects CHEMISTRY
FERROUS OR NON-FERROUS ALLOYS
METALLURGY
PRETREATMENT OF RAW MATERIALS
PRODUCTION AND REFINING OF METALS
TREATMENT OF ALLOYS OR NON-FERROUS METALS
title Method for enhancing quality of coarse-grain magnetite concentrate pellets
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