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Mixed flocculating agent capable of accelerating settling of superfine grain tailing flocculation and application thereof

A flocculant and ultra-fine particle technology, which is applied in the field of metallurgical beneficiation, can solve the problems of poor tailings dry stacking process, unfavorable comprehensive utilization of resources and environmental protection, and difficulty in flocculation and settlement of ultra-fine tailings.

Inactive Publication Date: 2015-06-24
HUBEI XINYING ENVIRONMENTAL TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to solve the current difficulties in flocculation and settlement of ultra-fine tailings, the poor effect of tailings dry stacking process, and it is not conducive to the comprehensive utilization of resources and environmental protection. The mixed flocculant and its application

Method used

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  • Mixed flocculating agent capable of accelerating settling of superfine grain tailing flocculation and application thereof
  • Mixed flocculating agent capable of accelerating settling of superfine grain tailing flocculation and application thereof
  • Mixed flocculating agent capable of accelerating settling of superfine grain tailing flocculation and application thereof

Examples

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Effect test

Embodiment 1

[0150]Take 600g of polyacrylamide with a molecular weight of 13 million to 14 million, add water to make 1200kg of polyacrylamide aqueous solution with a mass fraction of 0.05%, and then make a mixed flocculant with 20 to 40 mesh quartz sand at a mass ratio of 1.2:1 A total of 2200kg. When used, the amount of dry ore is added at 22kg / t. The quality of the dry ore = total mass of ore pulp × mass concentration of ore pulp, the same below.

Embodiment 2

[0152] Take 400g of polyacrylamide with a molecular weight of 13 million to 14 million, add water to make 200kg of polyacrylamide aqueous solution with a mass fraction of 0.2%, and then make a mixed flocculant with 20 to 40 mesh quartz sand at a mass ratio of 4:1 A total of 1000kg, when in use, add 10kg / t of dry ore.

Embodiment 3

[0154] Take 1000g of polyacrylamide with a molecular weight of 13 million to 14 million, add water to make 333kg of polyacrylamide aqueous solution with a mass fraction of 0.3%, and then make a mixed flocculant with 20 to 40 mesh quartz sand at a mass ratio of 0.3:1 A total of 1330kg, when used, according to 13kg / t dry ore dosage.

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Abstract

The invention relates to the technical field of metallurgic mineral separation and provides a mixed flocculating agent capable of accelerating settling of superfine grain tailing flocculation and application thereof. According to the mixed flocculating agent, firstly from 13 million to 14 million, by molecular weight, of polyacrylamide is prepared into a water solution with mass faction from 0.05% to 0.3%, then the water solution is mixed uniformly with quartz sand from 20 to 40 grits or iron rough concentrate according to the mass ratio ranging from 0.3:1 to 6:1, and the flocculating agent is obtained; by means of the mixed flocculating agent, the settling time and the settling efficiency of superfine grain tailing can be accelerated, the water quality of separating medium is improved obviously, so that the separating medium generated in the flocculation process can be recycled and reused as mineral separation used water, and the flocculating agent usage is greatly reduced (by about from four to ten grams per ton of dry ore); meanwhile, a novel superfine grain tailing flocculation settling technology is provided, the superfine grain tailing flocculation settling time is greatly shortened, the production efficiency is enhanced, the problem that water content stays at a high level after the superfine grain tailing concentrates is solved, a new process route is provided for the superfine grain tailing dry pile technology, and prominent contributions are made to environment protection and comprehensive utilization of resources.

Description

technical field [0001] The invention relates to the technical field of metallurgical beneficiation, in particular to a mixed flocculant capable of accelerating the flocculation and settlement of superfine tailings and its application. Background technique [0002] With the development of mineral processing technology, the particles of concentrate and tailings are becoming finer and finer. In order to save energy and reduce consumption, high-concentration slurry is generally used for transportation. Therefore, concentration becomes an important issue that must be dealt with before pipeline transportation. The treatment method of tailings slurry and the whereabouts of water and slag are related to the environmental protection and economic benefits of the mineral processing plant. Therefore, the first step in tailings treatment is to concentrate the slurry. On the one hand, the return water of the tailings can be returned to the mineral processing process for recycling. , in o...

Claims

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Application Information

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IPC IPC(8): B03B9/06B01D21/01B01D21/28
CPCY02W30/52
Inventor 洪镇波胡剑宇吴小杰梅求文曾欢邓成
Owner HUBEI XINYING ENVIRONMENTAL TECH
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