The main task of the combustion control and adjustment: 

1. Improve the evaporation capacity of boiler in order to meet the requirement of external load. 

2. Keep the combustion stable and good. 

3. To prevent coking and flameout accidents. 

4. Improve the efficiency of the boiler. 

5.Meet the requirements of environmental protection and reduce the emissions of fly ash and harmful gas. 

In normal operation, it is required to strive to reach: 

1. The combustion of boiler bed is stable. 

2. The negative pressure of hearth is stable. 

3. The oxygen content in flue gas is stable. 

4. The steam parameters are stable.

The main parameters to be controlled and adjusted: 

1. The bed temperature: 920 ± 40 ℃. 

2. The wind chamber pressure: 8000-9000 Pa. 

3. The negative pressure of hearth : about 100 pa. 

4. The flue gas oxygen content: 4-6%.