A tray tower is a type used for gas-liquid or liquid-liquid systems.Graded Contact Mass Transfer EquipmentComposed of a cylindrical tower body and several trays horizontally installed at certain intervals within the tower. Widely used in distillation and absorption, some types (such as)Sieve tray towerAlso used for extraction, and can serve as a reactor forGas-liquid phase reaction processDuring operation (taking the gas-liquid system as an example), the liquid flows from top to bottom through each tray layer under the force of gravity, eventually draining out at the bottom; the gas, propelled by a pressure difference, moves from bottom to top through each tray layer, exiting at the top. Each tray maintains a liquid layer of a certain depth, where the gas disperses into the liquid layer, facilitating interfacial mass transfer.