Preparation method for steel-making slag-doped aerated hollow brick

A steelmaking slag and hollow brick technology, applied in the direction of climate sustainability, sustainable waste treatment, solid waste management, etc., to achieve the effect of solving environmental pollution problems, large usage, and light bulk density

Inactive Publication Date: 2014-09-17
HEFEI RISINE HEATEK
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] In summary, there have been reports on the production of cement, wall bricks, and road materials with calcium carbide slag as auxiliary raw materials, but there have been no reports on the use of inorganic waste as the main raw material for the production of aerated blocks.

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  • Preparation method for steel-making slag-doped aerated hollow brick
  • Preparation method for steel-making slag-doped aerated hollow brick
  • Preparation method for steel-making slag-doped aerated hollow brick

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Embodiment Construction

[0020] A method for preparing an aerated hollow brick doped with steelmaking slag, the method comprising the following steps:

[0021] 1), mix raw materials according to the following dry basis mass parts:

[0022]

[0023] 2) Take 60-70 parts of inorganic garbage and 2-3.5 parts of aluminum powder in the mass parts before fine grinding, and mix the modified fly ash, cement, hemihydrate gypsum and calcium carbide slag with the inorganic garbage and aluminum powder are mixed evenly and finely ground;

[0024] 3) Put the crushed ceramic waste and the finely ground dry material into the mixing equipment, and add water to fully stir;

[0025] 4), according to the above steps (3) 0.04-0.06% of the mass of the stirring material is added with waste aluminum powder, and 0.003-0.005% of the stirring material is added with a foam stabilizer;

[0026] 5) Put the slurry stirred in the above step (4) at a temperature of 60-75° C., the static stop foaming time is 2-3 hours, and the sta...

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Abstract

The invention discloses a preparation method for a steel-making slag-doped aerated hollow brick. The method is characterized by comprising the following steps: 1) mixing raw materials consisting of, on a dry basis, 35 to 45 parts by mass of modified fly ash, 6 to 10 parts by mass of hemihydrate gypsum, 20 to 35 parts by mass of cement and 10 to 12 parts of carbide slag; 2) before fine grinding, weighing 60 to 70 parts by mass of inorganic garbage and 2 to 3.5 parts by mass of aluminum powder, uniformly mixing crushed fly ash, cement, hemihydrate gypsum and carbide slag with inorganic garbage and aluminum powder and then carrying out fine grinding; and 3) putting a crushed ceramic waste material and a dry material obtained after fine grinding into a stirring apparatus, adding water and carrying out full mixing. According to the invention, the usage amount of the inorganic garbage is great, energy conservation and environmental protection are realized, the problem of environmental pollution caused by stockpiling treatment of inorganic garbage is alleviated, and a novel raw material is provided for a hollow brick.

Description

technical field [0001] The invention relates to the field of new building materials, in particular to a method for preparing an aerated hollow brick doped with steelmaking slag. Background technique [0002] For a long time, the comprehensive utilization of carbide slag has been a worldwide problem. Although a lot of research has been done on the comprehensive utilization of carbide slag at home and abroad, most of them have not been put into industrial realization due to various technical and economic reasons. [0003] In conclusion, it has been reported that carbide slag is used as an auxiliary raw material to produce cement, wall bricks, and road materials, but the production of aerated blocks with inorganic waste as the main raw material has not been reported. Contents of the invention [0004] The purpose of the present invention is to provide a method for preparing aerated hollow bricks doped with steelmaking slag, which uses a large amount of inorganic waste, is ene...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B38/02C04B28/00C04B18/30
CPCY02W30/91
Inventor 张时利王建跃王皓静
Owner HEFEI RISINE HEATEK
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