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Pellet binding agent and preparation method thereof

A binder and pellet technology, applied in the metallurgical field, can solve the problems of waste of resources and difficult to use, and achieve the effect of avoiding waste of resources and broad application prospects.

Inactive Publication Date: 2012-04-18
PANZHIHUA GANGCHENG GRP MIYI RUIDI MINING +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Due to the high mud content of weathered ore and the common secondary changes of iron-containing oxides, it is difficult to be used, resulting in a great waste of iron, titanium, vanadium and other resources

Method used

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  • Pellet binding agent and preparation method thereof

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preparation example Construction

[0022] The present invention also provides a preparation method of the above-mentioned pellet binder, which comprises the following steps: mixing the weathered ore and the sodiumizing agent in a weight ratio of 45-80:3-7 (preferably 60:5) and adding a wetting amount of water homogenized, aged for 10-18 days (preferably aged for 14 days), dried, and pulverized to make a fine powder with particle size-200 mesh content>90%.

[0023] Further, in order to make the bonding effect of the prepared pellet binder better, after making particle size-200 order content>90% micropowder, also add the binder of pellet binder gross weight 8~12% ( Pellets usually use binders such as bentonite, etc.) and mix well.

[0024] The present invention also provides the use of the weathered ore modified by sodium as a pellet binder, wherein the TFe content in the weathered ore is 15-30%, the FeO content is 5.1-9.0%, TiO 2 The content is 5.0~9.2%, V 2 o 5 The content is 0.10-0.20%.

[0025] Wherein, ...

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Abstract

The invention relates to a pellet binding agent and a preparation method thereof, belonging to the field of metallurgy. The invention aims at providing the pellet binding agent which can completely replace bentonite. The pellet binding agent is prepared by carrying out sodium modification on weathered ore, and the weathered ore contains 15-30% of TFe, 5.1-9.0% of FeO, 5.0-9.2% of TiO2 and 0.10-0.20% of V2O2. The invention can solve the technical difficult problem of difficult utilization of the weathered ore over the years, fully utilize iron, titanium, vanadium and other resources in the weathered ore and avoid the waste of the resources. The invention provides a new way for utilizing the weathered ore and has broad application prospects.

Description

technical field [0001] The invention relates to a pellet binder and a preparation method thereof, belonging to the field of metallurgy. Background technique [0002] Bentonite is used as a binder for the production of acidic oxidation pellets from iron concentrates. It plays an important role in the consolidation of materials into pellets and the drying of green pellets. It has a great impact on production cost and production cost, and choosing high-quality and low-cost substitutes has always been a major issue for metallurgists. [0003] The Baima Iron Mine in the Panzhihua area of ​​my country is a very large hillside open-pit mine, and its weathered ore content accounts for about 20% (the amount reaches more than 100 million tons). The TFe content of the weathered ore is 15-30%, and the FeO content is 5.1-9.0%. ,TiO 2 The content is 5.0~9.2%, V 2 o 5 The content is 0.10-0.20%. Due to the high mud content of weathered ore and the common secondary changes of iron-contai...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22B1/243
Inventor 王宾李坚吴斌刘泽贵杨克军雷顺军范振武
Owner PANZHIHUA GANGCHENG GRP MIYI RUIDI MINING