Selection of internal parts of the tower

The selection of the packing tower and the plate tower should be considered according to the production process conditions, such as physical properties, operating conditions, operating methods, and technical and economic performance. Under normal circumstances should consider the following aspects
1) for corrosive materials, usually choose packing tower. Because the filler can choose the non - metallic materials with good corrosion resistance, it is easy to deal with the plate column.
2) for easy foaming material, selection of packing tower is more suitable. Due to the filling of the foam has limitations and fragmentation. And the plate tower is easy to produce entrainment, resulting in flooded tower.
3) for handling easy polymerization or containing solid particles of the material, easy to use plate tower. This is not easy to plug and easy to clean.
4) for heat sensitive material, should be used in packing tower. Because of the lag of the packed column
The material in the tower, tower short residence time. Furthermore, treatment of heat sensitive material should be carried out under high vacuum, pressure drop tower than the plate tower is low, so more suitable for vacuum operation.
5) in the separation process, there is a clear endothermic or exothermic effect of the system, it is appropriate to use the plate tower. Because the liquid volume of the plate tower is large, and is convenient to place the heating or cooling coil pipe on the tower plate. Packing uniform taim relates to a liquid, and the complicated structure.
6) for a plurality of feeding and discharging side tower, plate tower should be adopted.
7) for the separation of high viscous materials, packing tower. Because of the high efficiency of mass transfer of high viscosity material in tray tower.
8) the plate column is better than the packed tower in the situation that the quantity and load fluctuation are larger. Because the liquid mass is too small, it will cause the uneven distribution of liquid in the filling layer, the surface of the filler is not fully wetted, and the efficiency of the tower is affected. When the liquid load is too large, it is easy to produce liquid flow. But the design of a good plate tower, it has a larger operating flexibility.
9) for medium and small size of the tower, and the tower diameter is less than 600mm, it is appropriate to use the packed tower, so save costs.
10) than the general board of new packing with high flux, high efficiency, thus completing the same separation tasks, can be used in small size and lower the height of the tower.