Preparation process of geopolymer light foaming material

A foaming material and preparation technology, which is applied in the production of ceramic materials, clay products, ceramic products, etc., can solve the problems of low added value, large fluctuations, and low usage, and achieve excellent mechanical properties and acid and alkali resistance. The effect of improving product quality and performance and improving processing efficiency

Inactive Publication Date: 2021-10-12
北京荣露材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, after years of practice, it has been proved that coal gangue power generation has considerable pollution to the environment, which is not conducive to environmental protection; the recovery of valuable minerals will generate new pollution sources, and in some areas the permanent pollution sources produced by the recovery of minerals are still dangerous wastes. The degree of environmental damage is greater, and it is obviously not worth the loss; the performance of the prepared building materials is not high because there are some C and C compounds in the production of building materials, the application scenarios are limited, the consumption is low, and the social benefits are not significant; As for the production Compound fertilizer, because the elements contained in the coal gangue-themed raw materials fluctuate greatly, the production process is complicated, the overall cost is high, and the usage is less; although technical solutions in other fields such as mine backfilling can also consume a large amount of coal gangue The added value is not high, and the economic benefits are not significant

Method used

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  • Preparation process of geopolymer light foaming material
  • Preparation process of geopolymer light foaming material
  • Preparation process of geopolymer light foaming material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] Example 1: Mix the above-mentioned "prepared foam material" with 3M hollow glass microspheres in a blender at a ratio of 100:20, mix evenly, pour it into a mold under stirring conditions, and shape it at room temperature. The molding time 28 days, the mold size is 300*300*20. Its performance is tested according to GB / T 5486-2008 "Test Methods for Inorganic Thermal Insulation Products". The specific test data are as follows:

[0037] Table 1

[0038]

Embodiment 2

[0039] Example 2: Mix the above-mentioned "prepared foaming material" with aluminum powder in a ratio of 1:0.05, pour it into a mold, and then foam it. After the foaming is stable, it is cut into a standard sample block for testing, and the results in Table 2 are obtained. Test results:

[0040] Table 2

[0041]

[0042] As can be seen from the above results, the products of Examples 1-2 can be used to prepare high-performance aerated concrete blocks without using autoclaved equipment and steam boilers, which improves the safety of aerated concrete block production and reduces production costs. emissions, saving investment and improving economic and environmental benefits.

Embodiment 3

[0043] Example 3: Mix the "prepared foaming material" obtained above according to the ratio of material: hydrogen peroxide: manganese dioxide = 100:10:2, and then foam and form in the microwave field. The microwave power is 100%. The time is 5 minutes. During the molding process, the mold is equipped with a self-locking pressure-holding device to prevent material overflow due to excessive foaming. After molding, it is placed at room temperature for 3 days. The test basis is GB / T 33500-2017 "Foam Ceramics for Exterior Wall Insulation". The corresponding test results are shown in Table 3 below:

[0044] table 3

[0045]

[0046] As can be seen from Example 3, the product of this embodiment can be used to prepare foamed ceramics, and it can be seen that the preparation process of the embodiment is far simpler than the conventional foamed ceramics. It is more efficient, more energy-saving and more environmentally friendly, saving a lot of ceramic sintering time, indirectly sav...

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Abstract

The invention relates to the technical field of comprehensive utilization of coal gangue, in particular to a preparation process of a geopolymer light foaming material, which comprises the following steps: S1, adding 0.3-0.5% of triethanolamine into coal gangue subjected to heat treatment, and grinding to obtain coal gangue powder; s2, preparing foaming foam: mixing the coal gangue powder, a foaming agent, an auxiliary agent, alkali metal oxide, alkali metal silicate and water according to a ratio of 100: (0.6-8): (2-12): (6-18): (25-60); ands3, allowing the prepared foaming material in S2 to be subjected to foaming forming to obtain the geopolymer light foaming material. The geopolymer light foaming material has excellent mechanical performance, acid and alkali resistance, fire resistance, high temperature resistance and the like, and the formed material is excellent in durability, carbonization resistance and the like; and in the material forming process, the method is fast in forming, green, environment-friendly, energy-saving and efficient in the production and preparation process, the carbon emission of the building material production end can be greatly reduced, and the social overall carbon neutralization target can be achieved as soon as possible.

Description

technical field [0001] The invention relates to the technical field of comprehensive utilization of coal gangue, in particular to a preparation process of a geopolymer lightweight foaming material. Background technique [0002] At present, the comprehensive utilization of coal rock in my country mainly includes coal rock power generation, production of building materials, recovery of useful minerals from coal rock, and coal rock production of compound fertilizers. However, after years of practice, it has been proved that coal gangue power generation has considerable pollution to the environment, which is not conducive to environmental protection; the recovery of valuable minerals will generate new pollution sources, and in some areas the permanent pollution sources produced by the recovery of minerals are still dangerous wastes. The degree of environmental damage is greater, and it is obviously not worth the loss; the performance of the prepared building materials is not hig...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B7/24C04B28/00C04B38/02C04B33/13C04B33/132C04B111/40
CPCC04B7/24C04B28/006C04B38/02C04B33/132C04B33/131C04B2111/00017C04B2111/40C04B2201/20C04B2201/32C04B2201/50C04B12/04C04B22/062C04B14/22Y02P40/10Y02P40/60
Inventor 金小刚窦顺珍苏磊
Owner 北京荣露材料科技有限公司
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