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Re-concentration method for hematite combined tailings

A technology of hematite and tailings, which is applied in the field of hematite comprehensive tailings re-election, can solve the problems of ecological environment hazards, unreasonable utilization of mineral resources, waste of resources, etc., and achieve effective recovery, significant economic benefits, and reduce The effect of waste and loss

Inactive Publication Date: 2016-04-27
DALIAN DEETOP HEAVY IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The present invention proposes a hematite comprehensive tailings re-selection method, which solves the problem that a large amount of mineral resources in the tailings pool in the prior art have not been rationally utilized, resulting in waste of resources and harm to the ecological environment

Method used

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  • Re-concentration method for hematite combined tailings

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Comparison scheme
Effect test

Embodiment 1

[0028] Such as figure 1 As shown, the hematite comprehensive tailings re-election method in the present embodiment comprises the following steps:

[0029] (1) Send the original tailings of TFe12% to tailings recycling machine 1 after the water mining process to reclaim the iron minerals in the original tailings;

[0030] (2) The iron ore reclaimed in step (1) is fed into cyclone 2, and the underflow of cyclone 2 is fed into tower mill 3 for ore grinding, and the ore discharge of tower mill 3 is returned to cyclone 2 to form a closed circuit mill mine;

[0031] (3) The tailings fineness of the hydrocyclone 2 is less than 0.037mm, and the overflow of 95% of the total material mass is given to the weak magnetic separation equipment 4 for weak magnetic separation. The magnetic field strength is 1000Oe, and the weak magnetic is obtained. Tailings and weakly magnetic concentrates;

[0032] (4) the weak magnetic tailings that step (3) weak magnetic separation obtains is given into...

Embodiment 2

[0038] Such as figure 1 As shown, the hematite comprehensive tailings re-election method in the present embodiment comprises the following steps:

[0039] (1) Send the original tailings of TFe15% to the tailings recovery machine 1 after the water mining process to reclaim the iron minerals in the original tailings;

[0040] (2) The iron ore reclaimed in step (1) is fed into cyclone 2, and the underflow of cyclone 2 is fed into tower mill 3 for ore grinding, and the ore discharge of tower mill 3 is returned to cyclone 2 to form a closed circuit mill mine;

[0041] (3) The tailings fineness of the hydrocyclone 2 is less than 0.037mm, and the overflow of 93% of the total material mass is given to the weak magnetic separation equipment 4 for weak magnetic separation. The magnetic field strength is 800Oe, and the weak magnetic is obtained. Tailings and weakly magnetic concentrates;

[0042] (4) the weak magnetic tailings that step (3) weak magnetic separation obtains is given in...

Embodiment 3

[0048] Such as figure 1 As shown, the hematite comprehensive tailings re-election method in the present embodiment comprises the following steps:

[0049] (1) Send the original tailings of TFe10% to the tailings recovery machine 1 after the water mining process to reclaim the iron minerals in the original tailings;

[0050] (2) The iron ore reclaimed in step (1) is fed into cyclone 2, and the underflow of cyclone 2 is fed into tower mill 3 for ore grinding, and the ore discharge of tower mill 3 is returned to cyclone 2 to form a closed circuit mill mine;

[0051] (3) The tailings fineness of the hydrocyclone 2 is less than 0.037mm, and the overflow of 98% of the total material mass is given to the weak magnetic separation equipment 4 for weak magnetic separation. The magnetic field strength is 1200Oe, and the weak magnetic is obtained. Tailings and weakly magnetic concentrates;

[0052] (4) the weak magnetic tailings that step (3) weak magnetic separation obtains is given i...

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Abstract

The invention discloses a re-concentration method for hematite combined tailings. The re-concentration method comprises the following steps: recycling original tailings, recycling iron minerals, splitting flow through a cyclone, grinding minerals by a tower mill, carrying out low-intensity magnetic separation, carrying out high-intensity magnetic separation, sorting through a spiral chute and sorting through a shaking table. The re-concentration method is simple in process and is low in production cost; iron concentrates are high in grade and recovery rate, so that effective recovery of hematite combined tailings is realized, mineral resources are sufficiently utilized, metal waste and loss is reduced, and remarkable economic benefits are achieved.

Description

technical field [0001] The invention relates to the technical field of tailings recovery, in particular to a comprehensive tailings re-selection method of hematite. Background technique [0002] With the mining and utilization of mine resources, the resources are increasingly depleted, and the raw ore extracted is generally poor and fine. Therefore, the comprehensive recovery of useful minerals from the tailings produced by ore dressing has received more attention. The discharged ore dressing tailings not only occupy a large area, but also pollute the environment, and it is a pity that a large amount of valuable minerals are wasted. Recovery of useful components from tailings is not only conducive to improving the utilization efficiency of mine resources, but also can provide more raw materials for industrial development. [0003] my country's iron ore tailings have the characteristics of large quantity, fine particle size, complex properties and various types. Every 1 ton...

Claims

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Application Information

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IPC IPC(8): B03B9/06
CPCB03B9/061Y02W30/52
Inventor 马跃高树龙李伟张勇王鞍山路畅韩洪鹏
Owner DALIAN DEETOP HEAVY IND
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