Air Pollution Control Scrubbers removal of structured packing
Product Introduction of Metal Pall Ring
Pall ring is a new type of random packing improved on Rasiichig
ring. Compared with the later, pall ring has improved the liquid
distribution of packing layer greatly, with open windows on ring
sidewall. Therefore it has productivity, low resistance, operating
flexible and higher efficiency. Hualai Pall ring is widely applied
to industry. It is still one of major annular random packing that
has been adopted. It is especially suitable for rectification
towers under vacuum to treat thermosensitive, decomposable,
polymerizable or cokable systems, so it is widely used in packing
towers in petrochemical industry, chemical fertilizer industry and
environmental protection, etc.
Technical Data of metal pall rings:
| 16mm Pall Rings |
| Free Space (%) | 93 |  |
| Specific Surface Area (m2/m3) 316 |
| No. Per Unit Volume (m3 ) | 210,000 |
| Packing Factor (m-1) | 315 |
Specific Weight (kg/m3) 400 – 535 Stainless Steel |
| Dimensions (mm) | 16 x 16 |
| Thickness (mm) | 0.3 – 0.4 |
| Normal Material stainless steel 304, 316L |
| 25mm Pall Rings |
| Free Space (%) | 94 | |
| Specific Surface Area (m2/m3) 209 |
| No. Per Unit Volume (m3 ) | 49,500 |
| Packing Factor (m-1) | 176 |
Specific Weight (kg/m3) 322 – 644 Stainless Steel |
| Dimensions (mm) | 25 x 25 |
| Thickness (mm) | 0.4 – 0.8 |
| 38mm Pall Rings |
| Free Space (%) | 95 | |
| Specific Surface Area (m2/m3) 122 |
| No. Per Unit Volume (m3 ) | 13,450 |
| Packing Factor (m-1) | 107 |
Specific Weight (kg/m3) 200 – 400 Stainless Steel |
| Dimensions (mm) | 38 x 38 |
| Thickness (mm) | 0.4 – 0.8 |
| Normal Material stainless steel 304, 316L |
| 50mm Pall Rings |
| Free Space (%) | 96 | |
| Specific Surface Area (m2/m3) 100 |
| No. Per Unit Volume (m3 ) | 6,000 |
| Packing Factor (m-1) | 107 |
Specific Weight (kg/m3) 196 – 354 Stainless Steel |
| Dimensions (mm) | 50 x 50 |
| Thickness (mm) | 0.5 – 0.9 |
| Normal Material stainless steel 304, 316L |
Pall Ring Application
1. Liquid extractor;
2. NH3 extraction device;
3. Ethylene extraction tower;
4. Carbon monoxide converter;
5. Petrochemical and medical equipment.
6. Dimethyl terephthalate running column;
7. Mass transfer tower separation device;
8. Carbon dioxide and hydrogen sulfide absorption flash tower
Features of Bauer rings of various sizes:
1. Easy to wet
2. High scale resistance
3. High temperature resistance
4. High temperature application
5. High mechanical strength
6. High capacity low voltage drop
7. The machine is strong and the fracture probability is small
8. Good liquid / gas distribution and high mass transfer
efficiency.
Packing and Shipment
On plastic bags, large bags, wooden cases, cartons and pallets,
wrapped with PP film
