Reasons And Solutions For Boiler Air Nozzle Ash Leakage

The air nozzle of the boiler is one of the important components of the CFB boiler, which can control the oxygen content in the combustion chamber, help combustion to be more complete, and reduce emissions. However, some reasons may cause dust leakage from the air nozzle, which will affect the normal operation of the boiler. Here are some common causes of air nozzle dust leakage:

 

Reasons for Ash Leakage in Boiler Air Nozzle

The air nozzle of the boiler is one of the important components of the CFB boiler, which can control the oxygen content in the combustion chamber, help combustion to be more complete, and reduce emissions. However, some reasons may cause dust leakage from the air nozzle, which will affect the normal operation of the boiler. Here are some common causes of air nozzle dust leakage:

 

 

1. Air nozzle design issue: If the air nozzle design of the boiler is unreasonable, such as insufficient thickness of the air nozzle plate or poor design at the air nozzle interface, it can lead to ash leakage.

 

2. Network blockage: There is a protective net inside the boiler air nozzle. If this net is covered by dust or debris, it will cause dust leakage.

 

3. Combustion quality issues: Insufficient combustion or flame deviation may cause excessive dust to be generated inside the boiler air nozzle.

 

 

4. Pipeline blockage: Pipeline blockage is another cause of boiler ash leakage. If the exhaust or inlet duct of the boiler is blocked, it will cause the flue to be blocked, resulting in ash leakage from the air nozzle

 

Solution To Boiler Air Nozzle Ash Leakage

 

1. Replace the old air nozzle: If the original air nozzle of the boiler is not qualified or aging, a new air nozzle can be replaced to prevent dust leakage.

 

 

2. Air nozzle cleaning: Regularly clean the protective net inside the nozzle and the areas where dust accumulates to avoid dust blockage.

 

3. Improve combustion quality: Optimize the combustion conditions of the boiler, allocate the ratio of air to fuel reasonably, control the temperature and speed of combustion, and effectively reduce the generation of dust.

 

 

4. Smoke exhaust duct cleaning: Regularly clean the smoke exhaust duct and air inlet duct to ensure smooth flue flow and avoid blockage that may cause ash leakage..