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Method for producing aerated hollow brick by using steel tailings

A technology of steel tailings and hollow bricks, applied in the direction of climate sustainability, sustainable waste treatment, solid waste management, etc., to achieve the effect of light bulk density, large usage and high strength

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

AI Technical Summary

Problems solved by technology

[0003] In summary, there have been reports of using steel tailings as auxiliary raw materials to produce cement, wall bricks, and road materials, but there have been no reports about using steel tailings as the main raw material for the production of aerated blocks

Method used

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Embodiment Construction

[0019] A method for producing air-entraining hollow bricks by utilizing steel tailings, the method includes the following steps:

[0020] 1), after mixing and crushing cement, dihydrate gypsum and phosphate slag, take 5-10 parts of cement, 1-3 parts of dihydrate gypsum and 12-33 parts of phosphate slag in parts by mass;

[0021] 2) Take 60-70 parts of steel tailings and 2-3.5 parts of aluminum powder in mass parts before fine grinding, and mix the crushed cement, dihydrate gypsum and phosphate rock slag with steel tailings and aluminum powder Fine grinding after uniformity, the crushed cement, dihydrate gypsum and phosphate rock slag, steel tailings and aluminum powder are mixed evenly and the particle size of fine grinding is less than 20mm;

[0022] 3), breaking the ceramic waste material, and taking 12-25 parts of ceramic waste material in parts by mass;

[0023] 4) Put the crushed ceramic waste and the finely ground dry material into the mixing equipment, and add water to...

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Abstract

The invention discloses a method for producing an aerated hollow brick by using steel tailings. The method comprises the following steps: 1) mixing cement, dihydrate gypsum and phosphorus slag, then carrying out crushing and weighing, by mass, 5 to 10 parts of cement, 1 to 3 parts of dihydrate gypsum and 10 to 30 parts of phosphorus slag; 2) before fine grinding, weighing 60 to 70 parts by mass of steel tailings and 1 to 2.5 parts by mass of aluminum powder, uniformly mixing the crushed cement, dihydrate gypsum and phosphorus slag with the steel tailings and the aluminum powder and then carrying out fine grinding; and 3) crushing a ceramic waste material and taking 12 to 25 parts by mass of the crushed ceramic waste material. According to the invention, the usage amount of the steel tailings is great, energy conservation and environmental protection are realized, the problem of environmental pollution caused by stockpiling treatment of steel tailings 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 producing aerated hollow bricks by utilizing steel tailings. Background technique [0002] For a long time, the comprehensive utilization of steel tailing slag has been a worldwide problem. Although a lot of research has been done on the comprehensive utilization of steel tailing slag at home and abroad, most of them have not been put into industrial realization due to various technical and economic reasons. [0003] In summary, there have been reports of using steel tailings as auxiliary raw materials to produce cement, wall bricks, and road materials, but there has been no report of using steel tailings as the main raw material for the production of aerated blocks. Contents of the invention [0004] The purpose of the present invention is to provide a method for producing aerated hollow bricks by using steel tailings, which has a large amount of steel tailin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/00C04B38/02C04B18/04
CPCY02W30/91
Inventor 张时利王建跃王皓静
Owner HEFEI RISINE HEATEK
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