Method capable of utilizing mine tailings to produce aerated hollow brick

Abstract

The invention discloses a method capable of utilizing mine tailings to produce an aerated hollow brick. The method comprises the following steps: (1), mixing such materials in dry basis mass part as main tailings, lime, coal ash or yellow phosphorus slag, and the like; (2), according to the step (1), adding water in 85-95 percent of the mixed material dry basis, adding waste aluminum power in 0.04-0.06 percent of the mixed material dry basis, adding gypsum in 9-11 percent of lime, and adding triethanolamine in 0.1-0.3 percent of waste aluminum power. According to the invention, a larger amount of mine tailings can be used to achieve the purposes of energy conservation and environment protection and relieve the environment pollution caused by processing the mine tailings pile, and a novel material source is provided for the hollow bricks.

Description

technical field [0001] The invention relates to the field of new building materials, in particular to a method for preparing aerated hollow bricks by using mine tailings. Background technique [0002] Mine tailings are one of the products of sorting operations in mineral processing, and the content of useful components is the lowest among the products of this operation. Under the current technical and economic conditions, mines that are not suitable for further separation are called final tailings. For a long time, the comprehensive utilization of mine tailings has been a worldwide problem. Although a lot of research has been done on the comprehensive utilization of mine tailings at home and abroad, most of them have not been implemented in industry due to various technical and economic reasons. [0003] In summary, there have been reports on using mine tailings as auxiliary raw materials to produce cement, wall bricks, and road materials, but there have been no reports on ...

AI Technical Summary

Problems solved by technology

For a long time, the comprehensive utilization of mine tailings has been a worldwide problem. Although a lot of research has been done on the comprehensive utilization of mine tailings at home and abroad, due to various technical and economic reasons, most of them have not been put into industrial realization.

[0003] In summary, it has been reported that mine tailings are used as auxiliary raw materials to produce cement, wall bricks, and road materials, but construction waste is used as the main raw material for the production of aerated blocks.