Paper mill drying gas heat exchange waste gas whitening and defogging heat recovery device

The white and mist removal system for paper mill exhaust gas efficiently recovers and utilizes heat energy through an air plate heat exchanger, effectively reducing environmental pollution.

Gas air heat exchanger: The gas air heat exchanger is used to exchange heat between the high-temperature exhaust gas discharged from drying and the fresh air, so that the fresh air is heated and enters the workshop for paper drying.

Heat exchange process: The exhaust gas first exchanges heat with fresh air through a gas to gas heat exchanger, then further cools down through a gas-liquid heat exchanger, and finally undergoes final treatment through a spray heat exchange tower.

Deodorization and Whitening Process: The four stage spray system in the spray heat exchange tower and the S-shaped plate defogger work together to remove odor components and water mist from the exhaust gas.

Reheating process: In winter when the temperature is low, the three-stage finned reheater in the reheating section will heat the exhaust gas to prevent the generation of white mist.

The paper mill exhaust gas whitening and defogging system achieves efficient treatment and heat recovery of exhaust gas through efficient gas air plate heat exchangers and other supporting equipment, which not only reduces environmental pollution but also improves energy utilization efficiency.