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The working principle of the drying tower, the working principle of the absorption tower
The working principle is that air passes through a filter and a heater, enters the air distributor at the top of the drying tower, and then spreads evenly in a spiral pattern into the drying chamber. The liquid feed is pumped from the feed tank, through a filter, to the centrifugal atomizer at the top of the drying tower, where it is sprayed into extremely small mist droplets. The liquid feed comes into contact with hot air in parallel flow, causing the water content to evaporate rapidly, and the material is dried into the finished product in a very short time. The finished product is discharged from the bottom of the drying tower and the cyclone separator, while the waste gas is expelled by a fan.
The absorption tower is the equipment used to carry out absorption operations. They are classified into three categories based on the gas-liquid phase contact pattern. The first category consists of plate towers and bubble absorption towers, in which the gas is dispersed in the liquid phase in the form of bubbles ; The second category consists of ejectors, venturi tubes, and spray towers in which the liquid is dispersed in the gas phase as droplets ; The third category consists of packed absorption towers and falling film absorption towers, in which the liquid comes into contact with the gas phase in a film-like manner. The flow pattern of the gas-liquid two phases inside the tower can be countercurrent or co-current. Counter-current operation is typically used: the absorbent is added at the top of the tower and flows downward, where it comes into contact with the gas flowing upward. The liquid that has absorbed the solute is discharged from the bottom of the tower, while the purified gas is discharged from the top.
I would like to ask about the relationship between the regeneration gas flow rate in a drying tower and the regeneration heating temperature. Is it true that the greater the flow rate, the lower the temperature?