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Babcock & Wilcox - Model DynaGrate -Combustion Grate
The DynaGrate combustion grate is one of the world`s most advanced combustion grates for waste-to-energy applications. The DynaGrate provides excellent performance with low maintenance costs due to a design technology that causes little wear. With the DynaGrate technology we can meet tomorrow`s demands for waste-fired plants, which require a high level of accessibility, fuel flexibility, and energy recovery, under environmentally sound conditions.
Our DynaGrate is renowned for its unique:
- Movement: strong agitation of the fuel bed results in an excellent burn out of the waste fuel.
- Design: there is no contact between the moving parts. This design allows minimum impact of mechanical forces and minimizes the need for spare parts.
- Cooling system: a fully integrated water cooling system ensures stable operation and high availability of the combustion system.
Unique design provides optimal agitation of the fuel bed
The grate resembles a staircase. The individual steps -- the grate bars -- are alternately placed horizontally and vertically. These grate bars are mounted on shafts. As the grate bars of one shaft interfere with the bars of the adjoining shaft, a continuous grate carpet is formed. When the shaft turns 60 degrees in opposite directions, the steps change from vertical to horizontal and from horizontal to vertical. This produces a wave-like longitudinal movement, which in turn produces optimal turnover of the fuel bed.
Capacity of up to 55 metric tons with our modular DynaGrate®
We have developed a twelve-meter-wide grate module, which allows us to supply grates with a capacity of up to 55 metric tons of waste per hour. It’s designed for a wide array of waste types, with extreme variations in calorific values.
Ideal for the combustion of all types of waste, even cans and metals
A unique feature is that it can process waste containing large amounts of metals and still operate efficiently, a significant financial benefit. The DynaGrate features a very high combustion efficiency obtained with greater energy recovery for the production of electricity and heat while limiting environmental pollution.
- Combustion of all types of untreated waste
- Biomass co-firing capability
- Optimal fuel bed agitation provides uniform and efficient combustion with ahigh burnout rate
- Unique combustion control and fast stoker response
- No contact between the grate bars and side liners:
- Limited wear
- Reduces the mechanical forces to which the grate is exposed during operation
- No problem with fusion of metals – as seen on traditional forward/backward motion grates
- 4 to 55 t/h capacity