Focus on Gear BOIlErS thIs update of available biomass combustion boilers is a follow-up to our popular “Biomass Combustion 101” by Dr. Fernando Preto of Boiled Down CanmetENERGY. Here, we drill down through the mass of information provided by equipment suppliers to offer an overview of technologies, specifications and ap- plications to sawmillers, panel mills, pallet makers and other forestry professionals involved in the emerging biomass sector. Compiled by Colleen Cross. trouble-free feeding of densified or loose biomass, and its moving grate enables it to burn various fuels without clinkering problems. A user-friendly PLC control panel manages all the stoker functions from a single touchscreen. Features include a fully modulating system with turndown ratio of 6:1 with “Hold Fire” option; Type “C” or HRT style boilers, built to ASME code and ready for hot water or steam with pressures up to 300 PSIG; a Multi cyclone dust collection system that is up to 90% efficient; an automated ash and soot removal system; and a compact design that requires minimal floor space for installation. www.blueflamestoker.com, info@ blueflamestoker.com COMBUSTION EXPERT THINKS INSIDE THE CONTAINER Above: The Wellons Stepped Grate combustor burns bark, sawdust, wood chips, wood pellets, forest residuals and agricultural biomass. BFI EVEN BURNS BURIED BIOMASS BFI (Falmac Boiler) manufactures stoker grate and bubbling fluidized bed boilers with capacities in the range of 250 kW to 20 MW, and also offers cogeneration (thermal plus electricity). The boilers, which suit small commercial and industrial applications, burn wood chips, wood pellets, agricultural waste and municipal solid waste. BFI manufactures fluidized bed biomass power plants and offers turnkey biomass power plants that produce thermal and, optionally, electrical energy (co- generation); these systems are fully automated and fabricated in modules for easy transportation and installation. They can burn biomass with higher levels of moisture, even buried biomass. BFI also offers custom designs of its own systems according to client specifications. www.biomasse.ca, [email protected] BLUE FLAME BURNS TROUBLE FREE With its moving grate, Blue Flame’s Chain Grate Stoker can burn vari- ous fuels without clinkers. Blue Flame Stoker’s Chain Grate Stoker is available with a capacity range from 300 kW to 6 MW for small commercial and industrial applications. The versatile Multi Fuel Stoker burns wood shavings, wood chips, wood pellets, munici- pal solid waste, corn stover, flax straw, agricultural waste with moisture content up to 50%, and fuel sizes from four inches down. Its overfeed system is designed for 22 CanadianBIOMASS Combustion Expert’s thermal power units use any kind of residues – from sawdust to small logs – with up to 60% moisture content. Combustion Expert Inc. is a manufacturer of biomass combustion systems, includ- ing watertube, firetube, hybrid, electric and thermal fluid boilers, for commercial and industrial companies. System capacities range from 1 MW (100 BHP) to 30 MW (3000 BHP). From sawdust to small logs, the thermal power units use any kind of residues with up to 60% moisture content. Either for heating or thermal process, different advanced technologies can be used according to the client requirements. The system mainly consists of the boiler, the combustion chamber and the wood- feeding system. This system is generally a combination of a hydraulic mobile rake system, shaftless screws and the feeder. Combustion Expert delivers turnkey proj- ects as well as existing system conversion services. For more versatility, systems can also be assembled in a container to avoid building costs or in a mobile unit for temporary use. The product also features an automatic ash exhaust system and remote monitoring, and meets low emission rates while maintaining efficient combustion. www.combustionexpert.com, [email protected] JUNE 2009