Red mudstone porous granular-ceramics filter material and method for preparing same
A technology of ceramsite filter material and red mudstone, which is applied in the manufacturing field of producing high-performance porous ceramsite filter material, can solve the problems of poor film-hanging performance of plastic fillers, large water flow resistance, easy aging, etc. The effect of less energy consumption and lower production cost
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Embodiment 1
[0019] The chemical composition of the red mudstone used is shown in Table 2.
[0020] SiO 2
Al 2 o 3
Fe 2 o 3
CaO
MgO
K 2 o
Na 2 o
loss
63.16
18.70
5.87
0.97
0.41
2.33
0.35
7.26
[0021] The ratio of each raw material is: 55% of red mudstone, 40% of fly ash, 2% of glass powder, and 3% of limestone powder. Each raw material is ground separately and then measured and mixed into the plow mixer to mix evenly. In the granulator, cue balls of φ1-2mm are prepared first, and then the cue balls are rolled in the granulator to a size of φ3-6mm. The balls are fed into the double-stage double-turn rotary kiln for drying and calcination. Control the drying pre-calcination temperature to 300°C, the calcination temperature to 1150°C, the drying time to 15 minutes, and the calcination time to 20 minutes. After leaving the kiln, the ceramsite is naturally cooled to room temperature t...
Embodiment 2
[0024] The ratio of each raw material is: 60% of red mudstone, 37% of fly ash, and 3% of glass powder.
[0025] Each raw material is ground separately, weighed and mixed evenly to make a material ball of φ3-6mm, put the material ball into a corundum crucible, put it in a high-temperature furnace, dry and pre-fire at 500°C for 10 minutes, and then put it into a silicon carbide rod at high temperature Calcined in the furnace at 1050°C for 30 minutes, and cooled to room temperature after taking out the furnace.
Embodiment 3
[0027] The ratio of each raw material is: red mudstone 50%, fly ash 47%, glass powder 3%.
[0028] Each raw material is ground separately, weighed and mixed evenly to make a material ball of φ3-6mm, put the material ball into a corundum crucible, put it into a high-temperature furnace, dry and pre-fire at 450°C for 12 minutes, and then put a silicon carbide rod at high temperature Calcined in the furnace at 1180°C for 10 minutes, and cooled to room temperature after taking out the furnace.
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