Guangzhou Petrochemical CFB boiler coal sowing technology reformation to save energy and increase efficiency

Recently, Guangzhou Petrochemical No.
2 CFB boiler coal-spreading air and sealed air source technical transformation project evaluation work was completed.
Data shows that after the completion of the transformation, the coal-spreading air pressure and flow rate of No.
2 CFB boiler have increased significantly, and the material is blocked.
The frequency is reduced, and fuel consumption can be saved by more than 4 tons per month
.

In the long-term operation of the CFB boiler, the coal chute is easy to block coal due to various reasons, and the stainless steel tongue at the bottom of the coal chute is often overburned due to fuel accumulation and needs frequent replacement, which affects the safe and stable operation of the boiler unit
.

This transformation is carried out on the original boiler body.
The original secondary air sowing coal air is cancelled, and a new coal sowing air is added directly below the coal inlet.
The air source of the coal sowing nozzle is changed from the original hot secondary air.
Hot primary air; the sealed air source of the coal feeder is changed from the original cold secondary air to the cold primary air, and at the same time, the No.
5, 6, and 7 blanking pipe plug cleaners are upgraded
.

In order to ensure the successful completion of the technological transformation project, the Ministry of Thermal Power has established a technological transformation project team, formulated detailed construction plans, and held several special meetings to assign responsibilities to people
.

After the technical transformation of No.
2 CFB boiler, not only the coal sowing air pressure and flow rate were increased, the energy-saving effect was significant, but also the probability of clogging of the coal falling pipe was reduced, the safe and stable operation of the boiler was ensured, and the labor intensity of the operators was reduced
.

The technical transformation of coal-seeded air and sealed air source for No.
1 CFB boiler will be implemented simultaneously during the overhaul in October
.