Key Automatic Control Strategies for Biomass Boilers

Dust Removal System Control
Automatically adjust the pulse injection cycle based on the differential pressure to maintain resistance within the set range.

When the differential pressure rises abnormally, issue an alarm and interlock to shut down the boiler to protect the filter bags.

Desulfurization System Control
Automatically adjust the circulating pump frequency and limestone slurry dosage based on the CEMS SO₂ concentration.

Control the pH within the set range (5.2~5.8) to ensure desulfurization efficiency and reduce limestone waste.

Automatically control the demister washing cycle to prevent an increase in pressure drop.

Denitrification System Control
Automatically adjust the ammonia injection amount based on NOx concentration to achieve closed-loop control.

Automatically switch the burner combination during load changes to avoid local excessive ammonia injection.

Induced Draft Fan and System Differential Pressure Control
Maintain furnace negative pressure and system flow stability through variable frequency speed regulation.

Automatically optimize the induced draft fan frequency based on total resistance to reduce energy consumption. ...