Biomass feeding systems for boilers and gasifiers

The challenge

The cost of producing energy from biomass is very dependent on efficient handling of the various types of biomass available and the efficiency of each process. Biomass needs to be distributed uniformly to the different feeding points in a boiler or gasifier so that capacity and combustion can be optimized, and emissions can be minimized.

The solution

ANDRITZ has complete solutions for feeding biomass materials to boilers and gasifiers. The scope of supply can vary from complete plants to individual equipment delivery. ANDRITZ has a depth of experience in project management, ensuring reliable deliveries and excellent economic results for customers.

Biomass feed system

• Boiler “day” silo
• Silo reclaimer
• Closed conveyors (chain or screw)
• Equalizing bin
• Rotary valve
• Drop chute or pushing screw to boiler

The ANDRITZ system for biomass feeding to a boiler or gasifier is rugged in design and well-proven. This ensures high availability of the power generation unit and a uniform, continuous feed so that efficiencies are maximized.

The modular design and range of configuration options for ANDRITZ technologies allow for delivery of a feed system to accommodate different layouts and sizes of the boiler or gasifier.

Features of the boiler infeed

• Wide capacity range
• Accommodating a wide range of materials (e.g. wood chips, pellets, bark, hog fuel, peat)
• High uptime with rugged, proven design
• ATEX approved