Method for preparing fired bricks by using andalusite, sillimanite and feldspar quarry wastes as raw materials

Abstract

The invention belongs to the technical field of building materials and relates to fired bricks, in particular to a method for preparing fired bricks by using andalusite, sillimanite and feldspar quarry wastes as raw materials. The method is mainly characterized in that: the andalusite, sillimanite and feldspar quarry wastes, tailing powder and spall in a certain mixing weight ratio are used as the raw materials to prepare the fired bricks; the problem that the andalusite, sillimanite and feldspar quarry wastes cannot be used to prepare fired bricks easily is solved; the andalusite, sillimanite and feldspar quarry wastes are exploited, controlled and used; the occupation of and pollution to land and riverway environments are reduced; the investment in treatment of ore wastes is reduced; a clay raw material is replaced and land sources are saved; and the products can be compared with clay bricks and can be used for building conventional walls and filling frame walls and can be used as outdoor ground bricks such as public square bricks and pavement bricks which are durable to be stepped.

Description

technical field [0001] The invention belongs to the field of building materials and relates to sintered bricks, in particular to a method for preparing sintered bricks by using andalusite, sillimanite and feldspar waste as raw materials. Background technique [0002] Sintered bricks are commonly used house building materials, and traditional fired bricks use clay as raw material. With the development of society and economy, the demand for sintered bricks is increasing day by day, but the preparation of sintered bricks with clay as raw material needs to occupy and destroy a large amount of cultivated land, and land resources are not renewable. It is a national policy to protect land resources and protect the ecological environment. Clay sintered bricks will subject to prohibition. [0003] In the prior art, coal slag, tailings, gangue, river sand, etc. have been used to replace clay to prepare unburned bricks. However, unburned bricks can only be used for frame wall filling...

AI Technical Summary

Problems solved by technology

[0005] my country's andalusite, sillimanite, and feldspar mineral resources are relatively rich. According to the survey, there are only 48 andalusite, sillimanite, and feldspar mines in Nanyang, Henan Province. They have been mined for 30 years, but after mining, a large number of them The peeling layer, waste ore and mineral processing tailings and other wastes have accumulated for a long time to occupy cultivated land, or tailings ponds occupy cultivated land and river courses, and have not been treated and developed and utilized, which has caused serious harm.

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