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A Composite Flocculant for Promoting Tailings Flocculation and Settling

A composite flocculant and flocculation technology, applied in the fields of flocculation/sedimentation water/sewage treatment, chemical instruments and methods, water/sludge/sewage treatment, etc. To achieve the effect of improving adsorption treatment, ensuring water quality and rapid sedimentation

Active Publication Date: 2020-10-27
夏侯文奇
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Among many water treatment technologies, flocculation is not only the oldest water purification method, but also the most widely used and common process technology among many water treatment technologies today; The adding device is used to add flocculant, but the flocculation and sedimentation effects are poor, there is muddy phenomenon, and the content of suspended solids obviously exceeds the standard
In the case of limited supply of fresh water for beneficiation, unqualified ring water will inevitably deteriorate the grinding and beneficiation effect, resulting in inclusion of concentrate and lower grade

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] A composite flocculant for promoting flocculation and settlement of tailings, comprising the following material composition: 95kg of clay, 20kg of high alumina (average particle size: 0.5mm), 18kg of diatomite, 8kg of glass powder (average particle size: 1μm), modified 9kg of starch mixture, 400kg of water;

[0026] The modified starch mixture is a mixture of thiomalic acid modified starch, acrylamide grafted starch and polyurethane modified starch, with a mass ratio of 1:1.1:1.45.

[0027] The preparation method of the above-mentioned composite flocculant is: weigh clay, high alumina, diatomite, glass powder, modified starch mixture and water according to the formula, then transfer them to a mixing container, stir and mix evenly, and then add a thickener to carry out Thickened, kneaded and pressed into a cake shape with a thickness of 4cm, then dislocated and stacked in an oven, controlled at a temperature of 300°C, calcined for 30 minutes, then taken out, ground and p...

Embodiment 2

[0029] A composite flocculant for promoting the flocculation and settlement of tailings, comprising the following material composition: 90kg of clay, 15kg of high alumina (average particle size: 0.5mm), 15kg of diatomite, 5kg of glass powder (average particle size: 1μm), modified Starch mixture 8kg, water 300kg;

[0030] The modified starch mixture is a mixture of thiomalic acid modified starch, acrylamide grafted starch and polyurethane modified starch, with a mass ratio of 1:1.1:1.4.

[0031] The preparation method of the above-mentioned composite flocculant is: weigh clay, high alumina, diatomite, glass powder, modified starch mixture and water according to the formula, then transfer them to a mixing container, stir and mix evenly, and then add a thickener to carry out Thickened, kneaded and pressed into a cake shape with a thickness of 3cm, then dislocated and stacked in an oven, controlled at a temperature of 250°C, calcined for 30 minutes, then taken out, ground and pass...

Embodiment 3

[0033] A composite flocculant for promoting flocculation and settlement of tailings, comprising the following material composition: 100kg of clay, 25kg of high alumina (average particle size: 0.5mm), 20kg of diatomite, 10kg of glass powder (average particle size: 1μm), modified 10kg of starch mixture, 450kg of water;

[0034] The modified starch mixture is a mixture of thiomalic acid modified starch, acrylamide grafted starch and polyurethane modified starch, with a mass ratio of 1:1.05:1.4.

[0035] The preparation method of the above-mentioned composite flocculant is: weigh clay, high alumina, diatomite, glass powder, modified starch mixture and water according to the formula, then transfer them to a mixing container, stir and mix evenly, and then add a thickener to carry out Thickened, kneaded and pressed into a cake shape with a thickness of 2cm, then dislocated and stacked in an oven, controlled at a temperature of 200°C, calcined for 30 minutes, then taken out, ground an...

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Abstract

The invention belongs to the technical field of flocculants and specifically relates to a composite flocculant for promoting tailing flocculation settlement. The composite flocculant is prepared froma base material of clay and further is prepared from high alumina, kieselguhr, glass powder, a modified starch mixture and water. The raw materials are evenly mixed, thickened, calcined and ground into powder to obtain the composite flocculant. The composite flocculant disclosed by the invention is prepared from the base material of clay and further is prepared from the high alumina, the kieselguhr, the glass powder and the modified starch mixture, wherein the high alumina, the keiselguhr and the clay can form pore structures easily in a calcining process. Therefore, the final flocculant has alarger specific surface area and rich pore structures and has a very strong adsorption effect on suspended matter in tailing concentrate well; meanwhile, the glass powder can serve as a nucleating group of the flocculant to attract suspended matters to form a large group, so that quick settlement of the suspended matters is achieved.

Description

technical field [0001] The invention belongs to the technical field of flocculants, and in particular relates to a composite flocculant for promoting flocculation and settlement of tailings. Background technique [0002] With the country's increasing requirements for mine safety and environmental protection, tailings dry stacking and tailings comprehensive utilization technologies have developed rapidly in recent years, forming a variety of tailings concentration and dehydration processes. For example, the tailings after ore grinding and magnetic separation are discharged into the thickening well after being dredged to extract the coarse particles, and then concentrated by the slurry pump and transported to the filling station for underground filling. The overflow water of the big well is discharged to the ring The pool is used as circulating water for beneficiation operations. [0003] Among many water treatment technologies, flocculation is not only the oldest water purif...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F1/52C02F1/56
CPCC02F1/5236C02F1/56
Inventor 左小虎王俊杰武青松姜岩
Owner 夏侯文奇
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