Regenerated brick prepared from papermaking sludge and preparation method thereof

Abstract

The invention relates to a regenerated brick prepared from papermaking sludge and a preparation method thereof. the invention solves the problem of restricted utilization ratio of bricks prepared from papermaking sludge, and overcomes the defects of low compression resistance, low breaking strength, poor air permeability and the like in the bricks prepared from papermaking sludge. The preparation method comprises the following steps: mixing and stirring 35-40 parts by weight of papermaking sludge with the water content of 45-55%, 20-25 parts by weight of power plant sintering ash, 40-45 parts by weight of clay, 2.5-4 parts by weight of flame-retardant permeable fiber monofilament, 3-5 parts by weight of blind coal, 3-5 parts by weight of water-soluble resin and 4-7 parts by weight of water to obtain a wet material; and extruding with an extruding machine to obtain a blank strip, cutting into green bricks, naturally drying in air, and sintering in a kiln.

Description

technical field [0001] The invention relates to a regenerated brick, in particular to a regenerated brick made from papermaking sludge and a preparation method thereof. Background technique [0002] my country is a country that consumes a lot of bricks and is also a big producer of bricks. Ordinary clay bricks are traditional wall materials. They are mainly made of cultivated subsurface clay. They are made of cuboid bricks and then calcined in a brick kiln. This kind of brick is At present, the most commonly used building materials in cities and rural areas, in order to protect the dwindling cultivated land, the country has banned the production of clay bricks. In the past, cement bricks were also tried to replace clay bricks, but the production and use costs of cement bricks are relatively high. There is also a large amount of self, and the defect that it is not suitable for high-rise buildings to use. [0003] Papermaking waste is a kind of industrial waste, and its curren...

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Problems solved by technology

[0005] In view of the above problems, the present invention proposes a recycled brick made from papermaking sludge and a preparation method thereof, which solves the problem that the utilization rate of bricks made from papermaking sludge is limited, and avoids the pressure and crack resistance of bricks made from papermaking sludge. Bad defects such as low and poor air permeability