Boiler auxiliary equipment primarily includes: air supply and draft equipment, fuel supply equipment, dust removal equipment, and water treatment equipment.
1. Air supply and draft equipment: This refers mainly to equipment used to facilitate airflow, enabling the fuel inside the boiler to burn fully. It includes forced-draft fans (supply fans) and induced-draft fans (exhaust fans); the former supply air to the boiler's combustion chamber, while the latter discharge the flue gas generated during combustion. By regulating airflow and pressure, these devices ensure the stability and efficiency of the boiler's combustion process.
2. Fuel supply equipment: Used to deliver fuel into the boiler, ensuring its normal operation. Components include fuel transfer pumps, fuel nozzles, pulverized coal preparation systems, and more. These devices provide a stable and continuous fuel supply, thereby maintaining the boiler's thermal efficiency.
3. Dust removal equipment: Primarily used to remove dust and particulate matter from the boiler's flue gas emissions, thereby reducing environmental pollution. Examples include electrostatic precipitators and fabric filter (baghouse) dust collectors. These devices effectively lower the dust content in flue gas, protecting both the environment and human health.
4. Water treatment equipment: Used to treat boiler feedwater, ensuring the safe operation of the boiler. Equipment includes water softeners, deaerators, and feedwater purification units. These systems remove impurities and harmful substances from the water, preventing scale formation and corrosion, while enhancing the boiler's operational efficiency and safety.
