How to Maintain the Feeding System of a Biomass Grate Furnace?

Maintenance of a biomass grate furnace feeding system covers daily cleaning and inspection, fuel quality control, part lubrication and periodic servicing, all aimed at keeping feed flowing and operation stable.

Daily cleaning and inspection

Clean ash and debris from the inlet, hopper, screw conveyor and belt conveyor regularly so that blockage does not interrupt fuel supply; a soft brush or compressed air helps. Check that the drop pipe is clear and remove ash and clinker from the grate bars so that ventilation gaps stay open and combustion stays even. Instruments and the ventilation system should be checked at the same time to confirm normal readings and clear air ducts.

Fuel quality control and preparation

Store fuel under cover against rain and damp, since excess moisture causes bridging and poor ignition; match the particle size and impurity content of the incoming fuel to the grate design, crushing and screening where needed to keep twine and stones out of the feed mechanism.

Key parts and lubrication

Lubricate bearings, chains and drive parts on schedule, check screw flights and belts for wear and misalignment, and replace worn parts promptly to avoid downtime from component failure.

Safety protection and servicing plan

Keep anti-blocking and anti-flashback devices on the feed section working, and adjust combustion parameters to load during operation. Set up a systematic servicing plan, record operating data and train operators so that maintenance is traceable.