A high-strength phosphogypsum permeable brick and its manufacturing method
A phosphogypsum and high-strength technology, which is applied in the field of high-strength phosphogypsum permeable bricks and its manufacturing, can solve the problems of unsatisfactory water permeability, etc., achieve the effects of broadening comprehensive utilization channels, low production costs, and alleviating the pressure of comprehensive utilization
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Embodiment 1
[0038] Example 1: Preparation of high-strength phosphogypsum permeable brick
[0039] (1) Get 40kg of phosphogypsum and grind it into powder to pass through a 180-220 mesh sieve to obtain phosphogypsum powder;
[0040] (2) Get 30kg of blast furnace water-quenched slag and grind it into powder and cross a 180 mesh sieve to obtain active water-quenched slag powder;
[0041] (3) Mix phosphogypsum powder and active water-quenched slag powder evenly, use wet granulation, put it into a calcination furnace, and calcine for 3 hours at a calcination temperature of 300°C, let it cool naturally, and pass through a 30-mesh sieve to obtain high-strength phosphogypsum granular powder.
[0042] (4) Mix the phosphogypsum particle powder prepared in step (3) with 30kg of epoxy resin evenly, and use a brick making machine to make a brick body.
[0043] (5) The finished product is obtained by 1.55MPa saturated steam curing.
Embodiment 2
[0044] Example 2: Preparation of high-strength phosphogypsum permeable brick
[0045] (1) Get 60kg of phosphogypsum and grind it into powder and pass through a 200-mesh sieve to obtain phosphogypsum powder;
[0046] (2) Get 20kg of blast furnace water-quenched slag and grind it into powder and cross a 200-mesh sieve to obtain active water-quenched slag powder;
[0047] (3) Mix phosphogypsum powder and active water-quenched slag powder evenly, use wet granulation, put it into a calciner, and calcinate for 3-4 hours at a calcining temperature of 350°C, let it cool naturally, and pass through a 35-mesh sieve to obtain high-strength Phosphogypsum granular powder.
[0048] (4) Mix the phosphogypsum particle powder prepared in step (3) with 20kg of epoxy resin evenly, and use a brick making machine to make a brick body.
[0049] (5) The finished product is obtained by 1.60MPa saturated steam curing.
Embodiment 3
[0050] Example 3: Preparation of high-strength phosphogypsum permeable brick
[0051] (1) Get 65kg of phosphogypsum and grind it into powder and cross a 200-mesh sieve to obtain phosphogypsum powder;
[0052] (2) Get 20kg of blast furnace water-quenched slag and grind it into powder and cross a 200-mesh sieve to obtain active water-quenched slag powder;
[0053] (3) Mix phosphogypsum powder and active water-quenched slag powder evenly, use wet granulation, put it into a calciner, and calcinate for 3-4 hours at a calcining temperature of 350°C, let it cool naturally, and pass through a 35-mesh sieve to obtain high-strength Phosphogypsum granular powder.
[0054] (4) Mix the phosphogypsum particle powder prepared in step (3) with 15kg of epoxy resin evenly, and use a brick making machine to make a brick body.
[0055] (5) The finished product is obtained through 1.6MPa saturated steam curing.
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