The ceramic cascade mini ring absorbs the characteristics of the short Raschig ring and also changes the habit of the ring height and diameter of the packing being equal. Because of this feature, it not only increases the mechanical strength of the packing ring, but also destroys the symmetry of the packing structure, thereby increasing the orientation probability when the packing is put in. At the same time, the contact between the packing annular gaps during the accumulation of the packing changes from linear contact to point contact, which not only increases the space between the packing particles and reduces the resistance of the gas passing through the packing layer, but also these contacts The point can also be a converging and dispersing point where the liquid flows along the surface of the packing, thereby promoting the surface renewal of the liquid film and improving the mass transfer efficiency of the packing. Therefore, the performance of the stepped ring packing is further improved compared with the pall ring.
Chemical composition | ||||
SiO2 | Al2O3 | Fe2O3 | CaO | K2O+Na2O |
>70% | 23-30% | <1% | <1-2% | <2-4% |
Physical properties | ||||
Index | Parameter | |||
Proportion(g/cm3) | 2.25-2.35 | |||
Water absorption(%) | <0.5 | |||
Acid resistance (%) | >99.8 | |||
Firing temperature (℃) | 1280-1320 | |||
Operating temperature (℃) | >1400 | |||
Bulk density (kg/m3) | 2350 |
Technical parameter | |||||
Size(mm) | Specific surface area (m2/m3) | Porosity (%) | Stacked number/m3 | Bulk weight (kg/m3) | Dry filler factor (m-1) |
25*20*3 | 270 | 74 | 74000 | 624 | 172 |
50*30*5 | 108.8 | 78.7 | 9091 | 516 | 223 |
76*45*7 | 63.4 | 79.5 | 2517 | 426 | 126 |