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Super iron ore concentrate preparation equipment and production process adopting pre-grading magnetic separation

A technology of super iron ore concentrate and production process, applied in wet separation, filtration separation, solid separation and other directions, can solve problems such as environmental pollution, achieve great economic value, enhance comprehensive benefits, and be beneficial to environmental protection.

Inactive Publication Date: 2020-11-20
抚顺罕王傲牛矿业股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The cost of super iron ore concentrate in the above methods mainly includes ore processing cost or ordinary concentrate purchase cost, concentrate regrinding cost, flotation agent and chemical agent cost. Waste liquid and other waste may pollute the environment

Method used

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  • Super iron ore concentrate preparation equipment and production process adopting pre-grading magnetic separation
  • Super iron ore concentrate preparation equipment and production process adopting pre-grading magnetic separation
  • Super iron ore concentrate preparation equipment and production process adopting pre-grading magnetic separation

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0065] Mineral powder samples were taken to a concentrator in Fushun. The specification of the magnetic separator used in the embodiment is T-GCT1007. The specification of the electromagnetic concentrating machine used in the embodiment is YF-CX26.

[0066] The results of multi-element analysis of iron concentrate powder are shown in Table 1, and the results of sieve analysis of iron ore concentrate are shown in Table 2.

[0067] element TF FeO SiO 2

Al 2 o 3

CaO MgO K 2 o

content 68.70 28.82 4.82 0.22 0.198 0.322 0.014 element Na 2 o

S P MnO ZnO TiO 2

Cr 2 o 3

content 0.005 0.011 0.006 0.075 0.02 0.033 0.046

[0068] Sieve mesh Monolayer mass / g Yield / % grade / % +0.074mm 17.98 36.87 66.41 -0.074~+0.053 11.93 24.47 68.52 -0.053~+0.0385 4.18 8.57 70.07 -0.0385~+0.03 2.73 5.60 70.65 -0.03~0 11.94 24.48 71.36 Subtotal 48.76 100...

Embodiment 2

[0084] The ore powder was obtained from an iron ore factory in Fushun. The specification of the high frequency sieve used in this example is LK-MVS0412.

[0085] The specification of the magnetic separation tube used in this embodiment is XCGS. The specification of the electromagnetic concentrating machine used in this embodiment is YF-CX26.

[0086] The results of multi-element analysis of iron concentrate powder are shown in Table 7, and the results of sieve analysis of iron concentrate are shown in Table 8.

[0087] element TF Cu SiO 2

Al 2 o 3

CaO MgO content 69.02 <0.01

4.00 0.13 0.05 0.10 element Na S P mn TiO 2

Cr 2 o 3

content 0.057 0.004 <0.01

0.057 0.02 <0.01

[0088] Table 8 Screening results

[0089]

[0090] It can be seen from the results in Table 7 that the total iron grade of the iron ore concentrate raw ore sample is 69.02%, the main impurity element is silicon, and ...

Embodiment 3

[0109] The ore powder was obtained from an iron ore factory in Fushun. The specification of the high frequency sieve used in this example is LK-MVS0412. The specification of the magnetic separation tube used in this embodiment is XCGS. The specification of the electromagnetic concentrating machine used in this embodiment is YF-CX26. The results of multi-element analysis of iron concentrate powder are shown in Table 13, and the results of sieve analysis of iron concentrate are shown in Table 14.

[0110] element TF Cu SiO 2

Al 2 o 3

CaO MgO content 69.02 <0.01

4.00 0.13 0.05 0.10 element Na S P mn TiO 2

Cr 2 o 3

content 0.057 0.004 <0.01

0.057 0.02 <0.01

[0111] Table 14 Screening results

[0112]

[0113]It can be seen from the results in Table 13 that the total iron grade of the iron ore concentrate raw ore sample is 69.02%, the main impurity element is silicon, and the content of ...

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Abstract

The invention relates to a super iron ore concentrate preparation equipment and production process adopting pre-grading magnetic separation. The equipment at least comprises a rough concentration unitand a fine concentration unit which are connected with each other. The equipment further comprises a screening unit, wherein the sizes of screening holes of the screening unit are matched based on the original ore concentrate screening and analysis result. The screening unit is connected with the rough concentration unit, and therefore untreated original ore concentrates are subjected to at leastone time of wet screening to obtain undersize concentrate pulp, the fine concentration unit is connected with at least one first concentrating unit, and therefore concentrate pulp subjected to roughconcentration and fine concentration in sequence is concentrated into super iron ore concentrate containing first concentrated ore concentrates in the first concentrating unit, and the total iron grade of super iron ore concentrates ranges from 70% to 72%. Oversize pulp generated by the screening unit, tailings generated by the rough concentration unit and overflow products generated by the fine concentration unit are combined, byproduct iron ore concentrate pulp is formed, and byproduct iron ore concentrates with the total iron grade ranging from 66% to 68% are formed in a concentrating manner. According to the super iron ore concentrate preparation equipment and production process adopting pre-grading magnetic separation, ore grinding, flotation and leaching are avoided, no waste is generated in the whole process, and super iron ore concentrates and byproduct iron ore concentrates are generated at the same time.

Description

technical field [0001] The invention relates to the technical field of deep processing of mineral products, in particular to a super iron concentrate preparation equipment and production process using pre-graded magnetic separation. Background technique [0002] There is no clear national standard for the quality of super iron ore concentrate products. It usually refers to a mineral product whose iron content is close to the theoretical content of the mineral, and the content of various impurity elements is extremely low. This product can be used as a substitute material for iron scale or iron red in the field of magnetic materials or powder metallurgy. At the same time, it can also be used as ferric oxide material in chemical, fresh-keeping and medical industries. Compared with ordinary iron concentrate, super iron concentrate has higher added value. [0003] The Chinese invention patent with the authorized announcement number CN102527492B proposes "A Method of Using Low-g...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B03B7/00B03C1/30B07B1/28B01D36/00
CPCB01D36/003B03B7/00B03C1/30B07B1/28
Inventor 李明宇黄金夫万家国姜丽君陈婉晴王文龙武真子
Owner 抚顺罕王傲牛矿业股份有限公司