Water purification type unfired ceramsite and preparation method
A technology of ceramsite and water purification, applied in chemical instruments and methods, water/sewage treatment, adsorption water/sewage treatment, etc.
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Embodiment 1
[0029] A preparation method of water-purifying type unfired ceramsite, comprising the following steps:
[0030] S1. Take 30 parts by weight of raw materials fly ash, 10 parts of starch, 10 parts of calcium oxide, 1 part of desulfurized gypsum, and 5 parts of sodium perborate and mix them evenly to obtain a mixture;
[0031] S2. Put the mixed material in S1 in a pan granulator, spray 30 parts by weight of water into the granulator at a flow rate of 1 part / minute to obtain ceramsite green balls; the water temperature is lower than 15 ℃; the rotating speed of the disc granulator is 20 rpm, and the inclination angle is 30 degrees;
[0032] S3, sieving the ceramsite green balls described in S2 to obtain ceramsite green balls with a particle size of 8-20 mm;
[0033] S4. Put the raw ceramsite balls described in S3 into a steam curing device for curing. The air humidity in the curing device should be greater than 70%. The curing temperature program is: curing at 40 degrees Celsius f...
Embodiment 2
[0043] A preparation method of water-purifying type unfired ceramsite, comprising the following steps:
[0044] S1, take by weight 75 parts of raw material fly ash, 35 parts of starch, 40 parts of calcium oxide, 2 parts of desulfurized gypsum, 20 parts of sodium perborate and mix evenly to obtain a mixture;
[0045] S2. Put the mixed material in S1 in a pan granulator, and spray 50 parts by weight of water into the granulator at a flow rate of 5 parts / minute to obtain ceramsite green balls; the water temperature is lower than 15 °C; the rotating speed of the disc granulator is 50 rpm, and the inclination angle is 50 degrees;
[0046] S3, sieving the ceramsite green balls described in S2 to obtain ceramsite green balls with a particle size of 8-20 mm;
[0047] S4. Put the raw ceramsite balls described in S3 in a steam curing device for curing. The air humidity in the curing device should be greater than 70%. The curing temperature program is: curing at 70 degrees Celsius for 0...
Embodiment 3
[0057] A preparation method of water-purifying type unfired ceramsite, comprising the following steps:
[0058] S1, take by weight 50 parts of raw material fly ash, 20 parts of starch, 20 parts of calcium oxide, 1 part of desulfurized gypsum, 18 parts of sodium perborate and mix evenly to obtain a mixture;
[0059] S2. Put the mixed material in S1 in a pan granulator, and spray 40 parts by weight of water into the granulator at a flow rate of 3 parts / minute to obtain ceramsite green balls; the water temperature is lower than 15 ℃; the rotating speed of the disc granulator is 30 rpm, and the inclination angle is 40 degrees;
[0060] S3, sieving the ceramsite green balls described in S2 to obtain ceramsite green balls with a particle size of 8-20 mm;
[0061] S4. Put the raw ceramsite balls described in S3 into a steam curing device for curing. The air humidity in the curing device should be greater than 70%. The curing temperature program is: curing at 50 degrees Celsius for 1...
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