Beneficiation process of low-grade magnetite and specularite mixed ore

A technology of magnetite and specularite, which is applied in the field of ferrous metal ore mining and dressing, can solve the problems of unsuitable mixed ore dressing process, complex process flow, and high dressing cost, so as to improve the dressing efficiency, reduce energy consumption, and improve efficiency Effect
CN102205273AActive Publication Date: 2011-10-05ANHUI JINRISHENG MINING
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
ANHUI JINRISHENG MINING
Publication Date
2011-10-05

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Abstract

The invention relates to the technical field of black metal ore exploitation and beneficiation, in particular to a beneficiation process of low-grade magnetite and specularite mixed ore, which is especially suitable for associated magnetite and specularite mixed ore of Zhouyoufang iron ore. The novel beneficiation process is realized according to an operation procedure and the process proceduressuch as ore crushing, one-stage grinding and grading, reselecting, one-stage weak magnetic separation, one-stage strong magnetic separation, two-stage grinding and grading (crude concentrate re-grinding), two-stage weak magnetic separation, two-stage strong magnetic separation, reverse floating and the like. The iron ore is comprehensively recycled, and a high-quality iron concentrate product is produced. The process has the characteristics of energy saving, high beneficiation efficiency and low beneficiation cost.
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Description

technical field

[0001] The invention relates to the technical field of ferrous metal ore mining and dressing, in particular to a low-grade magnetite and specularite mixed ore dressing process. This process is especially suitable for the beneficiation of the symbiotic mixed ore of magnetite and specularite in Zhouyoufang Iron Mine craft. Background technique

[0002] In the 21st century, with the recovery of the world economy and the acceleration of structural adjustment, especially the rapid development of my country's economy, the continuous high growth of my country's steel industry has been driven, and my country's total steel output has ranked first in the world. At the same time, my country has become the world's largest importer of iron ore. In 2010, my country imported 620 million tons of iron ore, accounting for more than half of my country's total demand for finished iron ore. Due to the increase in the gap between the supply and demand of iron ore, the price of ir...

Claims

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