Novel calcination-free desulfurized gypsum brick

Abstract

The invention discloses a novel calcination-free desulfurized gypsum brick, belonging to the production field of building bricks. The calcination-free desulfurized gypsum brick comprises the following components in parts by weight: 45-55 parts of desulfurized gypsum, 25-35 parts of coal ash, 5-10 parts of No. 32.5 cement, 4-10 parts of triethanolamine, 3-5 parts of sodium hydroxide, 3-5 parts of sodium silicate, 3-5 parts of sulfate, 1-2 parts of calcium oxide and 0.05-0.1 part of reinforced fiber. The calcination-free desulfurized gypsum brick has the advantages of energy conservation and, good product quality, low price and the like, is environment-friendly, and treats wastes with wastes.

Description

technical field

[0001] The invention patent designs a building brick, specifically a new type of calcined-free desulfurized gypsum brick, which is suitable for residential houses, ordinary residential buildings, and inner partition walls. Background technique

[0002] Power plant flue gas desulfurization Gypsum and fly ash are the two largest solid wastes in coal-fired power plants. The present invention can make good use of these two industrial waste residues, which will not only generate huge economic benefits but also produce immeasurable environmental benefits. The raw materials of the new type of calcined-free desulfurization gypsum bricks are easy to obtain and are industrial waste residues. Energy saving and environmental protection, this gypsum brick does not need to be calcined, which not only solves the problem of consuming a large amount of non-renewable land resources for ordinary bricks, but also solves the disadvantage of high energy consumption for calcination...

Examples

Embodiment Construction

[0016] Produce new type non-calcined desulfurization gypsum bricks according to the following quality:

[0017] formula

[0018]

[0019] Mix and stir desulfurized gypsum, fly ash, cement, sodium hydroxide, sodium silicate, sulfate, and calcium oxide according to the above ratio, and then add triethanolamine and reinforced fiber aqueous solution according to the ratio and mix evenly. The ratio of water to material is 0.48;

[0020] The mixture is vibrated and pressed into the mold, and the pressure is 100-300 Newton during the compression. After the test piece is formed, let it stand at room temperature for 3 days before demoulding. After demoulding, it will be naturally cured for 25 days to obtain the finished desulfurized gypsum brick.

[0021] The technical indicators of the obtained new-type calcined-free desulfurization gypsum bricks are shown in Table 1:

[0022] Table I:

[0023]

technical field

[0001] The invention patent designs a building brick, specifically a new type of calcined-free desulfurized gypsum brick, which is suitable for residential houses, ordinary residential buildings, and inner partition walls. Background technique

[0002] Power plant flue gas desulfurization Gypsum and fly ash are the two largest solid wastes in coal-fired power plants. The present invention can make good use of these two industrial waste residues, which will not only generate huge economic benefits but also produce immeasurable environmental benefits. The raw materials of the new type of calcined-free desulfurization gypsum bricks are easy to obtain and are industrial waste residues. Energy saving and environmental protection, this gypsum brick does not need to be calcined, which not only solves the problem of consuming a large amount of non-renewable land resources for ordinary bricks, but also solves the disadvantage of high energy consumption for calcination...

Examples

Embodiment Construction

[0016] Produce new type non-calcined desulfurization gypsum bricks according to the following quality:

[0017] formula

[0018]

[0019] Mix and stir desulfurized gypsum, fly ash, cement, sodium hydroxide, sodium silicate, sulfate, and calcium oxide according to the above ratio, and then add triethanolamine and reinforced fiber aqueous solution according to the ratio and mix evenly. The ratio of water to material is 0.48;

[0020] The mixture is vibrated and pressed into the mold, and the pressure is 100-300 Newton during the compression. After the test piece is formed, let it stand at room temperature for 3 days before demoulding. After demoulding, it will be naturally cured for 25 days to obtain the finished desulfurized gypsum brick.

[0021] The technical indicators of the obtained new-type calcined-free desulfurization gypsum bricks are shown in Table 1:

[0022] Table I:

[0023]

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