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Process for recovering black mica and white mica from iron ore dressing tailings

A technology of iron ore and muscovite, applied in flotation, magnetic separation, solid separation, etc., can solve problems such as limited industrial production effect, consumption of chemicals, and destruction of flotation selectivity

Pending Publication Date: 2021-04-16
ANHUI JINRISHENG MINING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Because the iron ore tailings contain a large amount of fine mud with a particle size of -0.04mm, which consumes chemicals and destroys the selectivity of flotation. Although the iron tailings currently use cyclones or deslimers for desliming , but the effect of single-use industrial production is limited

Method used

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Embodiment 1

[0021] In the present embodiment, a kind of technology that reclaims black, muscovite from iron ore iron dressing tailings, comprises the following steps:

[0022] (1) Use a vertical ring magnetic separator to separate the weak magnetic separation tailings after grinding, and separate the mica-containing tailings from the iron minerals;

[0023] (2) The mica-containing tailings obtained in step (1) are pumped into the hydrocyclone for classification to obtain fine mud of -0.04 mm fine-grained grade, and then the fine mud is sent to the hydrocyclone to overflow and remove, and obtain Cyclone grit;

[0024] (3) sending the cyclone grit in the step (2) into the spiral chute to obtain the spiral chute tailings and the spiral chute concentrate;

[0025] (4) Send the concentrate from the spiral chute in step (3) into the ore feeding box, flow into the desliming hopper from the ore feeding box, the overflow of the desliming hopper enters the total tailings, and the bottom flow of th...

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Abstract

The invention discloses a process for recovering black mica and white mica from iron ore dressing tailings, and relates to the technical field of ore processing. The process comprises the following steps that low-intensity magnetic separation tailings after ore grinding are sorted by using a vertical ring magnetic separator, and mica-containing tailings are separated from iron minerals; the mica-containing tailings are pumped into a hydrocyclone to be graded, fine silt is obtained, then the fine silt is fed into the hydrocyclone for overflowing removal, and hydrocyclone settled sand is obtained; the hydrocyclone settled sand is fed into a spiral chute, and spiral chute tailings and spiral chute concentrates are obtained; the spiral chute concentrates are fed into an ore feeding box and flow into a desliming hopper from the ore feeding box, overflow of the desliming hopper enter total tailings, and underflow of the desliming hopper enter a stirring tank before flotation; a pH regulator, an inhibitor and a trapping agent are added into the stirring tank, the pH value of the material in the stirring tank is detected in real time until the pH value in the stirring tank reaches 11, and then, primary roughing is conducted on the material in the stirring tank. The process has the advantages that better flotation indexes can be obtained, and the flotation effect is improved.

Description

technical field [0001] The invention relates to the technical field of ore processing, in particular to a process for recovering black mica and muscovite from iron ore iron dressing tailings. Background technique [0002] Mica is a rock-forming mineral that presents a hexagonal flaky crystal shape and is one of the main rock-forming minerals; the mica crystal has a layered structure inside, so it is a flaky crystal, mainly hexagonal flaky crystals; its characteristics are insulation, High temperature resistant and most used in industry is sericite, which is widely used in coatings, paints, electrical insulation and other industries. [0003] The beneficiation of mica ore is the enrichment process of mica minerals in the ore. The current beneficiation methods include: hand separation, friction beneficiation, shape beneficiation (sieving beneficiation), flotation (cation or anion flotation) and wind separation, among which the flotation method It is mainly used in the recover...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B03B7/00B03B9/00B04C9/00B03C1/30B03D1/018B03D101/06B03D101/02B03D103/04
Inventor 张鉴谢广东余利
Owner ANHUI JINRISHENG MINING
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