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Preparation method of fly ash aerated brick

A technology of aerated bricks and fly ash, which is applied in the field of preparation of fly ash aerated bricks, can solve problems such as environmental secondary pollution and waste of resources, and achieve reduction of heat of hydration, saving of cement, good environmental protection and economic benefits Effect

Pending Publication Date: 2019-07-02
卢松
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Improper disposal of sludge will not only cause secondary pollution to the environment, but also a waste of resources

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] The preparation method of fly ash aerated brick, it comprises the steps:

[0027] Step 1) Take 30-50 parts of fly ash, 20-30 parts of dried sludge and 10-20 parts of clay in parts by weight, mix them, and then add them to a ball mill and grind them until the powder has a particle size of 100 mesh;

[0028] Step 2) Add water accounting for 30% by weight of the powder to the powder obtained in step 1) as a granulating agent, and granulate through a drum granulator to make the particle size reach 2-3mm, and dry after sieving to control its moisture content Below 5%, put the granulated blank into clay, continue to roll and granulate, wrap the blank in the middle, and cover the outer layer with a layer of 0.5-1mm thick clay layer to make ceramsite raw meal;

[0029] Step 3) Put the ceramsite raw meal into the drying equipment and keep it warm at 110°C for 48 hours to remove the natural water, directly put the ceramsite raw meal into the gas-fired rotary kiln for 2 hours at 1...

Embodiment 2

[0034] The preparation method of fly ash aerated brick, it comprises the steps:

[0035] Step 1) Take 30-50 parts of fly ash, 20-30 parts of dried sludge and 10-20 parts of clay in parts by weight, mix them, and then add them to a ball mill and grind them until the powder has a particle size of 100 mesh;

[0036] Step 2) Add water accounting for 30% by weight of the powder to the powder obtained in step 1) as a granulating agent, and granulate through a drum granulator to make the particle size reach 2-3mm, and dry after sieving to control its moisture content Below 5%, put the granulated blank into clay, continue to roll and granulate, wrap the blank in the middle, and cover the outer layer with a layer of 0.5-1mm thick clay layer to make ceramsite raw meal;

[0037] Step 3) Put the ceramsite raw meal into the drying equipment and keep it warm at 110°C for 48 hours to remove the natural water, directly put the ceramsite raw meal into the gas-fired rotary kiln for 2 hours at 1...

Embodiment 3

[0042] The preparation method of fly ash aerated brick, it comprises the steps:

[0043] Step 1) Take 30-50 parts of fly ash, 20-30 parts of dried sludge and 10-20 parts of clay in parts by weight, mix them, and then add them to a ball mill and grind them until the powder has a particle size of 100 mesh;

[0044] Step 2) Add water accounting for 30% by weight of the powder to the powder obtained in step 1) as a granulating agent, and granulate through a drum granulator to make the particle size reach 2-3mm, and dry after sieving to control its moisture content Below 5%, put the granulated blank into clay, continue to roll and granulate, wrap the blank in the middle, and cover the outer layer with a layer of 0.5-1mm thick clay layer to make ceramsite raw meal;

[0045] Step 3) Put the ceramsite raw meal into the drying equipment and keep it warm at 110°C for 48 hours to remove the natural water, directly put the ceramsite raw meal into the gas-fired rotary kiln for 2 hours at 1...

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PUM

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Abstract

The invention belongs to the technical field of aerated brick preparation, and discloses a preparation method of a fly ash aerated brick. The method comprises the following steps: step 1) grinding; step 2) granulation; step 3) calcinations; step 4) castable preparation; and step 5) preparation of the aerated brick. The preparation method of the invention is simple and feasible, and uses a large amount of waste materials such as fly ash to save energy and protect the environment.

Description

technical field [0001] The invention belongs to the technical field of aerated brick preparation, and in particular relates to a preparation method of fly ash aerated brick. Background technique [0002] Aerated bricks are flexible because of their hollow properties, while the main body of the building is supported by reinforced concrete structures, and the bricks only play a filling role. When an earthquake occurs, the reinforced concrete structure will be deformed. If it is a solid brick, the reinforced concrete structure will have no place to expand and contract when it is deformed and backlogged, and it will burst and collapse. The use of hollow bricks can leave a good expansion space for reinforced concrete structures. Due to the poor compatibility of the materials, the existing aerated bricks tend to become brittle, the strength is not long enough, the service life is not long enough, and they are not environmentally friendly. [0003] Fly ash is the flue ash dischar...

Claims

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Application Information

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IPC IPC(8): C04B28/04C04B18/02C04B38/10C04B38/08
CPCC04B18/027C04B28/04C04B38/10C04B2201/20C04B2201/32C04B2201/50C04B24/18C04B14/185C04B14/04C04B22/002C04B38/08C04B38/0067C04B18/08C04B18/0418C04B14/10
Inventor 徐淑伟伏广好周敬高雷王文强宁晓斌郄子玥陈燕平
Owner 卢松