Preparation method for manufacturing building hollow bricks by using mineral tailings

Abstract

The invention relates to the field of hollow bricks, in particular to a preparation method for manufacturing building hollow bricks by using mining industry tailing slag, which comprises the following steps: S1, material preparation: adding a certain amount of straw powder and white cement into mining industry waste slag; S2, grinding: putting the raw materials in the step S1 into a stirrer and a crusher for stirring and mixing; S3, aging: putting the materials stirred in the step S2 into an aging bin, adding brine and glue according to a certain proportion, and conducting stacking; S4, plasticizing: adding a certain amount of glass fiber powder and calcium carbonate powder into the mixture obtained in the step S3, and then conducting grinding and rolling; and S5, forming: putting the materials in the step S4 into an extruder for extrusion forming. According to the hollow brick, the toughness of the hollow brick can be improved through the arranged straw powder, the hollow brick is not prone to breakage in the airing and carrying process through the arranged straw powder, and the hollow brick is not prone to breakage when encountering the large temperature difference through the arranged glass fiber powder and the property of glass through the arranged glass fiber powder, and the glass fiber powder can make the hollow brick not prone to breakage when encountering the large temperature difference.

Description

technical field [0001] The invention relates to the field of hollow bricks, in particular to a preparation method for manufacturing building hollow bricks by using mine tailings slag. Background technique [0002] Commonly used in non-load-bearing parts, the porosity is equal to or greater than 35%, and the hollow bricks are called hollow bricks. Hollow bricks are divided into cement hollow bricks, clay hollow bricks, and shale hollow bricks. Hollow bricks are the main wall materials commonly used in the construction industry. , due to the advantages of light weight and less consumption of raw materials, it has become the first product recommended by the national construction department. Similar to red bricks, the common raw materials for hollow bricks are clay and cinder ash. [0003] Chinese Patent No. CN112094132A provides a preparation method of an environment-friendly coal-researched stone-based hollow brick, which includes the following steps: mixing fuel, filler and s...

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Problems solved by technology

[0005] The purpose of the present invention is to provide a preparation method for making building hollow bricks by using mining tailings slag, so as to solve the problem of poor toughness in the above-mentioned background technology, so that the hollow bricks are prone to fracture during the drying and handling process; traditional hollow bricks also Unsuitable for use in environments with large temperature differences

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