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Ore separation method for industrial production of above 65 iron concentrate powder through cluster analysis of low-grade hematite

A technology of iron concentrate powder and beneficiation method, applied in the field of beneficiation, can solve the problem of low iron content in beneficiation, and achieve the effect of simplifying the production process

Inactive Publication Date: 2013-02-13
张祥麟
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to solve the problem of low-grade hematite ore beneficiation with low iron content, which is an economical, energy-saving, Environmental protection, comprehensive utilization, and high-efficiency beneficiation technology

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0008] 2 kg Hematite TFe42%

[0009] Grinding and separation after crushing, screening and roasting

[0010] Get 1 kg of concentrate, TFe65%

[0011] 1 kg of tailings, TFe19%

[0012] The recovery rate of iron metal in concentrate is 77.38% (due to the test error, the recovery rate of iron metal is slightly lower, this problem has been solved, see the following example for details)

Embodiment 2

[0014] 200kg Hematite TFe44%

[0015] Grinding and separation after crushing, screening and roasting

[0016] Get 10kg of concentrate, TFe68%

[0017] Tailings 10kg, TFe20%

[0018] The recovery rate of iron metal in concentrate is 77.27% (due to the test error, the recovery rate of iron metal is slightly lower, this problem has been solved, see the following example for details)

Embodiment 3

[0020] 20t hematite TFe43%

[0021] Grinding and separation after crushing, screening and roasting

[0022] Get 10t of concentrate, TFe72%

[0023] Tailings 10t, TFe14%

[0024] Concentrate iron metal recovery rate 83.72%

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Abstract

The invention relates to an ore separation method for the industrial production of above 65 iron concentrate powder through cluster analysis of low-grade hematite. The roasting method of the industrial production of the above 65 iron concentrate powder through the low-grade hematite (below TFe45) mainly undergoes a breakthrough innovation, and the low-grade hematite is roasted through the roasting method and then enters a routine ore separation flow to obtain the above 65 high-grade and first-rate iron concentrate powder, so a forbidden zone of the production of the above 65 iron concentrate powder from the low-grade hematite is broken through, thereby the ore separation method has huge social benefits and good economic benefits.

Description

Technical field: [0001] The present invention relates to a low-grade hematite "poly-separation method" industrial production of iron ore concentrate powder of more than 65 ore beneficiation method, which belongs to the field of mineral processing technology, and it is difficult for the various processes and methods of low-grade hematite so far. Effectively industrialize to ensure a breakthrough of 65+ Iron Concentrate Dust. Background technique: [0002] The chemical composition of hematite is Fe 2 o 3 , the crystal is an oxide mineral of the trigonal crystal system. Hematite is an iron mineral widely distributed in nature and is an important iron-making raw material. Most important hematite deposits are formed by metamorphism, and some are formed by hydrothermal fluids. , or formed by weathering and colloidal precipitation in large basins. my country is a country with scarce high-quality iron ore resources. The annual import of iron ore has increased from 400 million ton...

Claims

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Application Information

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IPC IPC(8): C22B1/00
Inventor 张祥麟
Owner 张祥麟