Enhancing Spray Tower Efficiency: The Role of Wire Mesh Demister in Foam Removal
Wire mesh demister pad is used in a spray tower to handle the foam generated during the interaction between gas and liquid. A spray tower is a common gas-liquid mass transfer device widely used in industrial fields such as air pollution control, chemical engineering, and environmental protection.
Inside the spray tower, gas enters from the bottom through a spray device, while liquid is uniformly sprayed or distributed from the top. During this process, interaction between gas and liquid may result in the formation of foam, where suspended particles or volatile substances in the gas get trapped on the surface of liquid droplets.
The application of wire mesh demister is to remove these foams. It is usually located at the upper or top position of the spray tower. The wire mesh demister consists of a series of fine metal screens, constructed with multiple layers of different aperture sizes. When passing through the demister, foams are intercepted or broken, allowing the liquid components to return to the spray tower while the gas continues to be discharged upward through the tower body.
The design and selection of wire mesh demister should be determined based on specific application requirements and the characteristics of the gas-liquid system. It can effectively improve the mass transfer efficiency of the spray tower, prevent liquid loss and emission of pollutants, and extend the service life of the equipment. Therefore, the application of wire mesh demister in a spray tower is of significant importance in ensuring the smooth operation of industrial processes and environmental protection.