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Red mud/Yellow River sediment-based geopolymer flood prevention stone and preparation method thereof

A sediment and red mud technology, applied in the field of comprehensive utilization of solid waste resources, can solve problems such as environmental impact, occupation of land resources, polluted soil and water resources, and achieve low production costs and good strength

Inactive Publication Date: 2020-03-17
DALIAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The common treatment method of red mud in my country is stacking and storage. A large amount of stacked red mud not only takes up a lot of valuable land resources, but also requires high stockpiling costs.
In addition, due to strong alkalinity, red mud will pollute soil and water resources, causing a great impact on the environment

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] Red mud: the waste residue discharged from the production of alumina by Bayer process of an aluminum company in Henan Province, the particle size is below 100μm, 400 parts.

[0032] Yellow River Sediment: Sediment deposited in the Huayuankou area of ​​Zhengzhou City, Henan Province, with a particle size below 80 μm, 400 parts.

[0033] Mineral powder: S105 grade mineral powder of Jinan Luxin New Building Materials Co., Ltd., with a specific surface area of ​​700m 2 / kg, 100 parts.

[0034] Activator: water glass, modulus 3, colorless viscous liquid, 20 parts.

[0035] Mixing water: Dalian tap water, 80 parts.

[0036] The preparation steps are as follows:

[0037] Water glass is used as the activator, and the accurately weighed water glass material is added to the accurately weighed mixing water, and placed in an ultrasonic environment. Under the condition of 360W ultrasonic power, it is ultrasonically and stirred for 5 minutes to obtain uniformly dispersed water. g...

Embodiment 2

[0041] Red mud: the waste residue discharged from the Bayer process of alumina production by an aluminum company in Henan Province, the particle size is below 100 μm, 250 parts.

[0042] Yellow River Sediment: Sediment deposited in the Huayuankou area of ​​Zhengzhou City, Henan Province, with a particle size below 80 μm, 250 parts.

[0043] Mineral powder: S105 grade mineral powder of Jinan Luxin New Building Materials Co., Ltd., with a specific surface area of ​​700m 2 / kg, 65 parts.

[0044] Activator: water glass, modulus 2.5, colorless viscous liquid, 25 parts.

[0045] Mixing water: Dalian tap water, 50 parts.

[0046]The preparation steps are as follows:

[0047] Water glass is used as the activator, and the accurately weighed water glass material is added to the accurately weighed mixing water, and placed in an ultrasonic environment. Under the condition of 360W ultrasonic power, it is ultrasonically and stirred for 5 minutes to obtain uniformly dispersed water. gla...

Embodiment 3

[0052] Red mud: the waste residue discharged from the production of alumina by Bayer process of an aluminum company in Henan Province, the particle size is below 100μm, 100 parts.

[0053] Yellow River Sediment: Sediment deposited in the river channel of Huayuankou area, Zhengzhou City, Henan Province, with a particle size below 80 μm, 100 parts.

[0054] Mineral powder: S105 grade mineral powder of Jinan Luxin New Building Materials Co., Ltd., with a specific surface area of ​​700m 2 / kg, 30 servings.

[0055] Activator: water glass, modulus 2, colorless viscous liquid, 15 parts.

[0056] Mixing water: Dalian tap water, 25 parts.

[0057] The preparation steps are as follows:

[0058] Water glass is used as the activator, and the accurately weighed water glass material is added to the accurately weighed mixing water, and placed in an ultrasonic environment. Under the condition of 360W ultrasonic power, it is ultrasonically and stirred for 5 minutes to obtain uniformly disp...

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Abstract

The invention belongs to the field of comprehensive utilization of solid waste resources, and provides a red mud / Yellow River sediment-based geopolymer flood prevention stone and a preparation methodthereof. The red mud / Yellow River sediment-based geopolymer flood prevention stone comprises the following raw materials: 100-400 parts of red mud, 100-400 parts of Yellow River sediment, 30-100 partsof mineral powder, 15-25 parts of excitant and 25-80 parts of mixing water. The preparation method comprises the following steps of: firstly, adding water glass as an excitant into mixing water, andcarrying out ultrasonic stirring treatment to prepare a uniformly dispersed water glass aqueous solution; secondly, adding the mixture of the red mud, the Yellow River sediment and the mineral powderinto the water glass aqueous solution, performing stirring, and carrying out compression molding on the stirred red mud / Yellow River sediment slurry by virtue of a pouring mold; and finally, maintaining the sample in an air environment, and removing the mold. The red mud / Yellow River sediment-based geopolymer flood prevention stone prepared by the invention has the lower production cost, has the better strength, is beneficial to promoting the comprehensive utilization of solid waste resources such as red mud, Yellow River sediment and the like, and has remarkable environmental protection, economic and engineering application values.

Description

technical field [0001] The invention belongs to the field of comprehensive utilization of solid waste resources, and designs a geopolymer flood control stone, in particular to a polymer flood control stone based on red mud / Yellow River sediment base and a preparation method thereof. Background technique [0002] The Yellow River Sediment refers to the silt accumulated in the Yellow River channel. It is mainly caused by water and soil erosion when the Yellow River flows through the Loess Plateau. The Yellow River floods caused by this have existed since ancient times. From the 1950s to the 1970s, when the Yellow River flowed through the Loess Plateau, it carried away an average of 1.6×10 sediments per year. 9 tons, serious water and soil erosion has brought serious security threats to the downstream. After decades of careful management and regulation, the Yellow River sediment caused by soil erosion in recent years has been reduced to 7.5×10 8 tons / year, and achieved remark...

Claims

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Application Information

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IPC IPC(8): C04B28/00C04B40/02
CPCC04B28/006C04B40/0259C04B2111/00017C04B2201/50C04B18/0409C04B14/068C04B18/141C04B22/00Y02P40/10
Inventor 邓双王宝民赵璐
Owner DALIAN UNIV OF TECH
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