Combined ore dressing method for waste materials containing low-grade barite

A beneficiation method and barite technology, applied in chemical instruments and methods, wet separation, mechanical material recovery, etc., can solve the problems of high cost, low sorting effect, low output, etc., to reduce emissions and increase resources. The effect of utilization

Inactive Publication Date: 2017-07-14
JIUQUAN IRON & STEEL GRP
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  • Summary
  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0003] The present invention aims at the technical problems that the existing process for sorting barite from iron ore tailings is too simple, the sorting effect is low, the output is low, the cost is high, the market demand cannot be met, and the high economic benefits cannot be brought to the enterprise. Provide a combined beneficiation method for waste materials containing low-grade barite

Method used

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  • Combined ore dressing method for waste materials containing low-grade barite

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Effect test

Embodiment 1

[0025] Based on a domestic iron content of 18.05%, BaSO 4 Take the abandoned tailings with a content of 14.02% iron oxide ore as an example.

[0026] use as figure 1 Shown the present invention a kind of combined beneficiation method containing low-grade barite waste material, its process steps are as follows:

[0027] (1) Add water to the powdery material to prepare a slurry with a mass concentration of 25%;

[0028] (2) Put the ore pulp obtained in step (1) into the spiral chute for sorting, and obtain two products of heavy minerals and light minerals;

[0029] (3) Mix the heavy minerals obtained in step (2) to a mass concentration of 25%, put them into a cyclone for classification, and obtain a grit-set product and an overflow product with a particle size of less than 325 mesh and a content greater than 90%, and the grit-set product enters the mill Mining equipment for grinding, grinding into grinding products with a particle size of less than 325 mesh and a content grea...

Embodiment 2

[0035] Based on a domestic iron content of 18.05%, BaSO 4 Take the abandoned iron tailings with 14.02% iron oxide ore as an example.

[0036] use as figure 1 Shown the present invention a kind of combined beneficiation method containing low-grade barite waste material, its process steps are as follows:

[0037] (1) Add water to the powdery material to make a slurry with a mass concentration of 40%;

[0038] (2) Put the ore pulp obtained in step (1) into the spiral chute for sorting, and obtain two products of heavy minerals and light minerals;

[0039] (3) Slurry the heavy minerals obtained in step (2) to a mass concentration of 40%, put them into a cyclone for classification, and obtain a grit-set product and an overflow product with a particle size of less than 325 mesh and a content greater than 90%, and the grit-set product enters the mill Mining equipment for grinding, grinding into grinding products with a particle size of less than 325 mesh and a content greater than...

Embodiment 3

[0045] Based on a domestic iron content of 32%, BaSO 4 Take the abandoned tailings of iron oxide-depleted ore with a content of 8.2% as an example.

[0046] use as figure 1 Shown the present invention a kind of combined beneficiation method containing low-grade barite waste material, its process steps are as follows:

[0047] (1) Add water to the powdery material to prepare a slurry with a mass concentration of 33%;

[0048] (2) Put the ore slurry obtained in step (1) into a shaker for sorting to obtain two products, heavy minerals and light minerals;

[0049] (3) Slurry the heavy minerals obtained in step (2) to a mass concentration of 33%, put them into a cyclone for classification, and obtain a grit product and an overflow product with a particle size of less than 325 mesh and a content greater than 90%, and the grit product enters the mill Mining equipment for grinding, grinding into grinding products with a particle size of less than 325 mesh and a content greater than...

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Abstract

The invention discloses a combined ore dressing method for waste materials containing low-grade barite. The method comprises the following steps that 1, powdery materials are prepared into ore pulp by adding water; 2, the ore pulp obtained in the step 1 is fed into gravity dressing equipment for dressing; 3, pulp mixing is conducted on heavy ore obtained in the step 2, obtained heavy ore pulp is fed into a hydrocyclone for classifying to obtain a sand setting product and an overflow product, and the sand setting product enters ore grinding equipment for ore grinding; 4, mixing and desliming are conducted on the ore grinding product and the overflow product which are obtained in the step 3, and pulp mixing is conducted after desliming; 5, ore pulp obtained in the step 4 is fed into a magnetic separator for separation; 6, pulp mixing is conducted on a non-magnetic product obtained in the step 5, and obtained ore pulp is fed into a flotation machine for 4-6-segment grading flotation; 7, filtering, reagent removing and whitening are conducted on a barite powder product obtained in the step 6, and a barite product is obtained. According to the method, the qualified barite powder product can be obtained from the waste materials, the method is applied to the industries of chemical engineering, petroleum drilling, medicine and the like, and the economical efficiency of secondary resource utilization is improved.

Description

technical field [0001] The invention relates to the technical field of barite beneficiation technology, in particular to a combined beneficiation method for waste materials containing low-grade barite. Background technique [0002] At present, the tailings after iron ore beneficiation contain a large amount of barite. If this part of barite is sorted out and used in other industries, it will bring great economic benefits to mining enterprises. However, the current iron ore The process of sorting barite from ore tailings is too simple, the sorting effect is low, the output is low, and the cost is high, which cannot meet the market demand and cannot bring high economic benefits to the enterprise. Contents of the invention [0003] The present invention aims at the technical problems that the existing process for sorting barite from iron ore tailings is too simple, the sorting effect is low, the output is low, the cost is high, the market demand cannot be met, and the high ec...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B03B7/00B03B9/06
CPCB03B7/00B03B9/06Y02W30/52
Inventor 刘金长朱霞丽秦丽娜
Owner JIUQUAN IRON & STEEL GRP
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