Preparation method of phosphogypsum recrystallized wall material
A technology for wall materials and phosphogypsum, which is applied in the preparation of wall materials and phosphogypsum recrystallized wall materials, and can solve the problems of high cost, pollution, and high energy consumption
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Embodiment 1
[0022] A. Mix 1 ton of phosphogypsum with 20kg of sodium naphthalenesulfonate, CaO and polyvinyl alcohol;
[0023] B. Ball mill the mixture to a fineness of -200 mesh to achieve intimate mixing of phosphogypsum and additives;
[0024] C. The ground mixture is mixed with 200kg of water, and then bricks are formed, and the finished phosphogypsum wall is obtained by constant temperature and pressure curing.
Embodiment 2
[0026] A. Mix 1 ton of phosphogypsum with 150kg of sodium naphthalenesulfonate, Ca(OH) 2 mixed with polyvinyl alcohol;
[0027] B. The mixture is vertically milled to a fineness of -200 mesh to achieve close mixing of phosphogypsum and additives;
[0028] C. The ground mixture is mixed with 250kg of water, and then extruded, and the finished phosphogypsum wall is obtained by constant temperature and pressure curing.
Embodiment 3
[0030] A. Mix 1 ton of phosphogypsum with 100kg of sodium naphthalenesulfonate, Ca(OH) 2 mixed with polyvinyl alcohol;
[0031] B. Roller mill the mixture to a fineness of -200 mesh to achieve intimate mixing of phosphogypsum and additives;
[0032] C. The ground mixture is mixed with 150kg of water, and then the aerated block is formed, and the finished phosphogypsum wall is obtained by constant temperature and pressure curing.
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