Working Principle of Spray Tower

Working Principle of Spray Tower

The spray tower operates based on the principle of gas-liquid two-phase absorption and neutralization reaction. Here’s a detailed explanation of its working process:

1. Exhaust Gas Introduction: The exhaust gas is introduced into the spray tower through an air pipe.

2. Packing Layer Contact: The exhaust gas then passes through a packing layer (though some modern spray towers may operate without a packing layer).

3. Absorption Liquid Spray: The absorption liquid is sprayed down from the top of the tower after being pressurized by a water pump located at the bottom. This ensures that the exhaust gas and the absorption liquid are in full contact.

4. Gas-Liquid Reaction: Within the tower, the exhaust gas and absorption liquid undergo an absorption and neutralization reaction, effectively purifying the exhaust gas.

5. Liquid Recycling: After the reaction, the absorption liquid is returned to the bottom of the tower for recycling.

6. Emission Standards: The purified exhaust gas meets the emission requirements, ensuring it is lower than the national emission standards.

Application Fields of Spray Tower

Spray towers are widely used in various industrial fields due to their efficient exhaust gas treatment capabilities. Here are some of the main application areas:

1. Brick Factory: Used to treat exhaust gases generated during the brick production process.

2. Electroplating Industry: Helps in removing harmful gases produced during electroplating processes.

3. Pickling and Painting: Treats exhaust gases from pickling and painting operations.

4. Fragrance Industry: Used to purify exhaust gases containing volatile organic compounds (VOCs).

5. Pharmaceutical Industry: Ensures compliance with emission standards by treating pharmaceutical production exhaust gases.

6. Rubber and Leather Industry: Treats exhaust gases from rubber and leather processing.

7. Printing Industry: Helps in removing ink-related exhaust gases.

8. Chemical Industry: Treats a wide range of chemical exhaust gases.

9. Metal Casting: Used to purify exhaust gases from metal casting processes.

10. Plastic Recycling: Treats exhaust gases generated during plastic recycling operations.

11. Spray Solvent Industry: Helps in removing solvent-related exhaust gases.

In summary, the spray tower operates on the principle of gas-liquid two-phase absorption and neutralization reaction and is widely used in various industrial fields for treating exhaust gases and ensuring compliance with emission standards.