Electrolytic manganese waste slag sintered building brick and preparation method thereof

Abstract

The invention relates to an electrolytic manganese waste slag sintered building brick. The electrolytic manganese waste slag sintered building brick is prepared from the following main materials in parts by weight: 30-50 parts of electrolytic manganese waste slag, 5-20 parts of coal gangue, 5-20 parts of shale and 10-30 parts of clay. A preparation method comprises the following steps: preparing powder, burdening, stirring, then aging and further stirring. The step of preparing the powder is as follows: respectively performing powder beating on the coal gangue, the shale and the clay till the fineness of 1-5mm, preferably 2-3mm. Uniform stirring is performed after burdening, and the aging time is 24-96h; the stirring needs to be performed again after aging. By adopting the technical scheme, the electrolytic manganese waste slag can be treated in a large quantity, and the prepared porous brick has high hardness and good quality, and can comply with safety requirements in the aspects of radioactivity and toxicity as a building material; furthermore, the burdening is simple, the coal consumption during the sintering process is low, the powder beating quantity is small, the power consumption is low, the loss of equipment during the powder making process is reduced, and the prepared product has the characteristics of light weight, high hardness, low production cost and the like.

Description

technical field [0001] The invention relates to building materials, specifically building bricks, more specifically sintered building bricks made from electrolytic manganese waste slag, and a manufacturing method. Background technique [0002] The output of electrolytic manganese waste residue is about 8 to 10 times that of electrolytic metal manganese products, and it is as high as 10 to 15 times when using low-lean ore. The main components of electrolytic manganese waste residue are calcium sulfate, magnesium sulfate, ammonium sulfate, silicate, manganese sulfate, iron hydroxide, etc. in the liquid tailings. These wastes are weakly acidic, and if they are not handled properly, they will cause serious pollution to the environment. . [0003] The treatment of electrolytic manganese waste residue is a difficult problem. Some are used to make non-burning autoclaved cement bricks, but the cost is too high to be difficult to popularize and apply. Some are used to make cement,...

AI Technical Summary

Problems solved by technology

The modified electrolytic manganese waste residue contains stone coal powder, pulverized coal powder, volcanic ash, quicklime, and fine aggregates include calcite powder, silica powder, dolomite powder, and marble powder. The formula is complex and the product cost is high

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