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Kaolin high concentration ore dressing technology

A high-concentration technology of kaolin, applied in the direction of solid separation, wet separation, chemical instruments and methods, etc., can solve the problems of unfavorable selection process for deep processing, high viscosity of slurry, high energy consumption, etc., to reduce process steps and links, reduce Mining energy consumption and cost, the effect of energy consumption reduction

Inactive Publication Date: 2008-01-09
茂名市银华高岭土实业有限公司
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  • Summary
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AI Technical Summary

Problems solved by technology

The pulp concentration of kaolin raw ore is low, which is not conducive to the subsequent deep processing of the beneficiation process. The concentration of the pulp is too high, and the viscosity of the pulp is too high, which is not conducive to the beneficiation operation, and there are many residual kaolinite in the discharged quartz sand, which is not conducive to kaolin mineral production. The full use of resources is a high energy consumption and low efficiency process

Method used

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Examples

Experimental program
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Effect test

Embodiment

[0023] a. According to the ore grade division and classification, excavate and collect raw kaolin ore by excavator classification;

[0024] b. Put the raw kaolin ore into the stirring tank, add water and dispersant, and stir to keep the viscosity at 7.6-78.3cps. Wherein the dispersant is composed of sodium hydroxide and sodium hexametaphosphate in a weight ratio of 1:2, added in an amount to maintain the pH value of the dispersed kaolin raw ore between 6.5 and 7.0;

[0025] c. The dispersed kaolin raw ore is desanded with a spiral classifier to control the pulp particle size to ≤74 μm, and the obtained coarse quartz sand is then elutriated by a secondary spiral classifier and a three-stage spiral classifier, The ore pulp obtained by elutriation of the second-stage spiral classifier is returned to step b, and the ore pulp obtained by elutriation of the third-stage spiral classifier is returned to the second-stage spiral classifier for processing, and water is added to the third...

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Abstract

The high concentration kaolin beneficiating process includes the following steps: providing raw kaolin ore; stirring and dispersing raw kaolin ore in the presence one water and dispersant while maintaining viscosity in 7.6-78.3 comprise; desanding the dispersed kaolin ore in a screw grader; elutriating desanding obtained coarse quartz sand in a secondary screw grader and a third screw grader; and returning the ore slurry from the secondary screw grader to the raw kaolin ore stirring and dispersing step and the ore slurry from the third screw grader to the secondary screw grader. The process can ensure the ore slurry concentration within 45-55 %, is favorable to kaolin beneficiating operation and post treatment, and has kaolin mineral resource recovering rate as high as 95 % and low water consumption.

Description

technical field [0001] The invention relates to a processing method of kaolin, in particular to a high-concentration kaolin beneficiation process. Background technique [0002] The traditional mining of sandy kaolinite (soil) adopts hydraulic flushing mining method, the mining water consumption is relatively large, the slurry concentration is low, and there are more residual kaolinite in the discharged quartz sand. The pulp concentration of kaolin raw ore is low, which is not conducive to the subsequent deep processing of the beneficiation process. The concentration of the pulp is too high, and the viscosity of the pulp is too high, which is not conducive to the beneficiation operation, and there are many residual kaolinite in the discharged quartz sand, which is not conducive to kaolin mineral production. The full utilization of resources is a process with high energy consumption and low efficiency. Contents of the invention [0003] The purpose of the present invention ...

Claims

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Application Information

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IPC IPC(8): B03B5/52B03B1/00
Inventor 谭泽华梁明柯华成
Owner 茂名市银华高岭土实业有限公司
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