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Porous phase material composite red mud brick and preparation method thereof

A technology for red mud bricks and red mud is applied in the field of porous phase material composite red mud bricks and their preparation, which can solve the problems of difficult comprehensive utilization of red mud and slag solid waste, and achieve significant environmental protection significance and economic benefits.

Active Publication Date: 2022-02-11
山东京韵泰博负碳科技有限公司
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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 provide a porous phase material composite red mud brick and its preparation method, which is used to solve the problem that the solid waste of red mud and slag is difficult to be comprehensively utilized in the prior art

Method used

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  • Porous phase material composite red mud brick and preparation method thereof
  • Porous phase material composite red mud brick and preparation method thereof

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preparation example Construction

[0020] For the second solution provided by the present invention, a method for preparing a porous phase material composite red mud brick is provided, which is used to prepare the porous phase material composite red mud brick in the aforementioned first solution, including the following steps:

[0021] (1) Dry the red mud until the moisture content is below 10%, and then mix it with porous phase material and modified slag powder according to the ratio after crushing and ball milling to obtain a solid waste mixture. In this step, the purpose of premixing the materials in advance is to exert the composite effect of the porous phase material and red mud. The surface of the porous phase material is rough and has a porous structure, which has strong adsorption, permeability and carrying capacity, while the porous phase material The material is easy to mix with trace components of inorganic salt containing crystal water and absorb the moisture and alkaline substances in it. First, it ...

Embodiment 1

[0031] The preparation steps of porous phase material composite red mud brick in this embodiment are as follows:

[0032] (1) Weigh raw materials, in terms of mass parts, 17 parts of porous phase material, 25 parts of red mud, 45 parts of modified slag powder, and 13 parts of aggregate; wherein, the particle size of modified slag powder is less than 100 mesh, and the aggregate The particle size is 3-10mm.

[0033] (2) Dry the red mud until the moisture content is below 10%, and then mix it with porous phase material and modified slag powder according to the ratio after crushing and ball milling to obtain a solid waste mixture.

[0034] (3) Add the solid waste mixture and aggregates to the vertical turbulent flow mixer in turn, and spray industrial water into the mixer in an atomized state during mixing. The amount of industrial water accounts for 23.3% of the sum of the solid waste mixture and aggregate mass, Start timing when industrial water is sprayed in, and the stirring ti...

Embodiment 2

[0039] The preparation steps of porous phase material composite red mud brick in this embodiment are as follows:

[0040] (1) Weigh raw materials, in terms of mass parts, 15 parts of porous phase material, 15 parts of red mud, 50 parts of modified slag powder, and 20 parts of aggregate; wherein, the particle size of modified slag powder is less than 100 mesh, and the aggregate The particle size is 3-10mm.

[0041] (2) Dry the red mud until the moisture content is below 10%, and then mix it with porous phase material and modified slag powder according to the ratio after crushing and ball milling to obtain a solid waste mixture.

[0042] (3) Add the solid waste mixture and aggregates to the vertical turbulent flow mixer in turn, and spray industrial water into the mixer in an atomized state during mixing. The amount of industrial water accounts for 22.1% of the sum of the solid waste mixture and aggregate mass, Start timing when industrial water is sprayed in, the stirring time...

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Abstract

The invention discloses a porous phase material composite red mud brick and a preparation method thereof. The porous phase material composite red mud brick is prepared by mixing and carbonizing the following raw materials in parts by mass: 10-20 parts of a porous phase material, 5-50 parts of red mud, 10-50 parts of modified slag powder and 10-30 parts of aggregate. The red mud and the porous phase material are used as a composite carrier, the modified slag powder is used as a main mineralization material, the aggregate is used as a framework, a carbonization treatment mode is matched, the porous phase material composite red mud brick is prepared, the compressive strength, radioactivity, leaching toxicity and other indexes of the porous phase material composite red mud brick all meet the standard requirements, and the porous phase material composite red mud brick can replace traditional red bricks to be applied. According to the preparation method, not only are solid waste resources such as red mud and slag utilized, but also carbon dioxide in industrial waste gas is utilized, comprehensive utilization of various wastes is achieved, and the preparation method has remarkable environmental protection significance and economic benefits.

Description

technical field [0001] The invention relates to the technical field of solid waste recycling, in particular to a porous phase material composite red mud brick and a preparation method thereof. Background technique [0002] Non-steamed red mud bricks mainly use modified slag powder as the main mineralization material, red mud and porous phase materials as admixtures and carriers, and add appropriate amount of aggregates (mainly including stone chips, machine-made sand, river sand, artificial aggregates) etc.) as a skeleton support, solid bricks made by embryo material preparation, compression molding, natural curing, and low-pressure carbonization curing are suitable for the interior and exterior walls of various civil buildings, public buildings, and industrial plants, as well as the foundation of houses. It is a product that replaces traditional fired clay bricks. [0003] Red mud is industrial solid waste discharged from the aluminum industry when extracting alumina. It i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/08C04B40/02
CPCC04B28/08C04B40/0231C04B2201/50C04B2111/00017C04B14/04C04B14/06C04B18/027C04B18/0409Y02W30/91
Inventor 马韵升崔东波张童鑫姚富国李林丽吴文选蔡颖辉张学雷陈超张国圣
Owner 山东京韵泰博负碳科技有限公司
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