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Feeder systems

To obtain maximum efficiency, the feeding of multi-fuels onto the grate needs to be continuous, even, and adapted to the grate’s transport capacity.

Experience, depth of knowledge of the various fuels, and an understanding of best practices in waste-to-energy and biomass is what puts us ahead of the pack with multi-fuel feeder systems.

Steady energy production and less wear and tear

“Feeding” means dosing the right quantity of fuel to the grate for steady combustion and energy production. However, it’s also important to minimize wear and tear of the feeding system so that your long-term maintenance costs are kept to a minimum.

Feed flexibility ensures optimal efficiency and minimum wear and tear

Proper feeding of waste and biomass onto the grate needs to be continuous and adapted to the grate’s transport capacity. Our technology ensures an even fuel layer across the grate so steady energy output and maximum efficiency are ensured.

The continuous, slow movement of our feed pusher can change according to your energy production and the combustion control, which provides a steady, continuous waste feed onto the grate. This ensures maximum efficiency and minimum wear and tear.

Our fuel feeding systems for multi-fuel plants

Our fuel feeder systems are based on:

Charging hopper: We design our feed hoppers to provide continuous fuel transport to the water-cooled chute with no clogging, which means your plant operates with fewer shut downs. The charging hopper is located at the concrete hopper deck in the fuel storage. The overhead fuel cranes move the pre-mixed fuel from the bunker to the hopper. The charging sequence is controlled by level indicators in the charging chute below the hopper.

Hydraulic safety dampers: During start up and close down of a plant, two powerful, hydraulically operated dampers are at work. Positioned between chute and hopper, they close automatically in the event of a power failure and can be closed manually in the event of fire in the chute.

Water-cooled charging chute: The water-cooled chute serves a number of purposes: leading the fuel from the hopper to the pusher, maintaining a better volume for evening out the fuel flow to the pusher, and acting as an air lock for preventing penetration of false air into the furnace. The chute is fire-resistant because of its cooling system. The water-cooled feed chute is made of strong, steel plates, and the smooth sides have a negative inclination to ensure free waste transport through the chute to the feed platform.

Feed pusher: The feed pusher is installed below the charging chute. The feed pusher is operated hydraulically and capacity is controlled by means of a proportional valve in the hydraulic system. Changeable wear plates cover the front and top of the feed pusher. The sides of the water-cooled feed chute are covered by changeable cast-iron plates that reach the top of the feed pusher, giving you a lower maintenance cost.

Hydraulic pump unit: A hydraulic pump unit for feeder and safety dampers is placed at the charging chute.

Bunker and crane at the Landskrona multi-fuel energy plant.