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Waste slag modifying additive

A technology of additives and slag, applied in the field of waste slag modified additives, can solve the problems of waste of mineral resources, accumulation of tailings resources, pollution of the environment, etc., and achieve the effects of strong resistance, accelerated crystallization, and high strength

Pending Publication Date: 2021-03-09
江门市骏通建材科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, due to the extremely fine particles of the tailings, if there is a strong wind after drying, it is easy to raise dust and affect the surrounding environment.
At the same time, in the mining process of mineral resources, a large amount of tailings resources are accumulated, which pollutes the environment, poses a serious threat to human survival, and causes a waste of mineral resources.
Waste slag is generally recycled to make building materials to replace cement. Because these waste slag contain various harmful components, they cannot be used directly

Method used

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Examples

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Embodiment 1

[0020] A preparation method for waste slag modified additive, comprising the following steps:

[0021] A. 87.07% of water is placed in the container, and 2% of metal cation chelate, 0.03% of nano cerium oxide, 0.3% of quinoline oxide are added successively and stirred at room temperature for 4 minutes;

[0022] B. After stirring evenly, then add 3% manganese sulfate, 1% polyethylene glycol, and 2% borax in turn, and continue stirring for 5-10 minutes;

[0023] C. Finally, add 0.1% ethylenediamine, 4% silica gel and 0.5% glucose, and stir for 8 minutes to prepare waste slag modification additive.

Embodiment 2

[0025] A preparation method for waste slag modified additive, comprising the following steps:

[0026] A. 90.53% of the water is placed in the container, followed by adding 1% metal cation chelate, 0.01% nano-cerium oxide, 0.01% nano-lanthanum oxide, 0.1% quinoline oxide and stirring at room temperature for 4 minutes;

[0027] B. After stirring evenly, then add 5% manganese sulfate, 0.1% polyethanol, and 1% sodium phosphate in sequence, and continue stirring for 5-10 minutes;

[0028] C. Finally, add 0.15% triethylenetetramine, 2% silica gel and 0.1% glucose, and stir for 8 minutes to prepare waste slag modification additive.

Embodiment 3

[0030] A preparation method for waste slag modified additive, comprising the following steps:

[0031] A. The water of 84.77% is placed in the container, add successively 3% metal cation chelate, 0.02% nano cerium oxide, 0.01% nano lanthanum oxide, 0.4% quinoline oxide and stir at normal temperature for 4 minutes;

[0032] B. After stirring evenly, then add 1% manganese sulfate, 0.8% polyethanol, and 4% sodium fluoride in sequence, and continue stirring for 5-10 minutes;

[0033] Finally, 0.2% paraformaldehyde, 5% silica gel and 0.8% glucose were added, stirred for 8 minutes, and waste slag modification additives were prepared.

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Abstract

The invention relates to a waste slag modification additive which comprises the following components in parts by mass: 1-3% of a metal cation chelate, 0.01-0.035% of nano cerium oxide and / or nano lanthanum oxide, 0.1-0.2% of a cross-linking agent, 0-0.5% of quinoline oxide, 1-5% of manganese sulfate, 0-0.8% of glucose, 1-5% of silica gel, 0-2% of polyethylene glycol, 0-4% of a retarder and the balance of water. After the waste slag modifying additive disclosed by the invention is added into waste slag, the modified waste slag has flexibility and rebound property under the pressing of externalpressure, can reach the strength of concrete, has pressure resistance, has strong resistance to water, and has higher strength under the erosion of water; the modified waste slag can be directly usedas a building material for replacing cement.

Description

technical field [0001] The invention relates to the technical field of waste slag, in particular to a waste slag modification additive. Background technique [0002] With the continuous development of my country's industrial technology, the output of various industrial waste residues is also increasing, the most common of which is mine tailings waste slag. Tailing sand, the current comprehensive recycling rate in my country is only about 7%, most of which are stored in the form of tailings. Tailings contain cyanide, sulfide, surfactants, floating agents, flocculants, etc. If they are stored for a long time, acidic water or toxic gases will be generated, which will cause serious harm to downstream rivers or the environment. In addition, due to the extremely fine particles of the tailings, if there is a strong wind after drying, it is easy to raise dust and affect the surrounding environment. At the same time, during the mining of mineral resources, a large amount of tailing...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B7/14C04B24/40
CPCC04B7/14C04B40/0039C04B22/06C04B24/40C04B22/142C04B22/08C04B24/121C04B24/10C04B24/128C04B24/28C04B22/16C04B22/124C04B24/00Y02P40/10
Inventor 肖子豪
Owner 江门市骏通建材科技有限公司
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