Ruststone
A grate stone , also known as a grate bar , is a mostly metallic component on which the fuel to be burned lies in a grate furnace . It thus limits the combustion chamber in the vertical direction downwards. The grate stone is mostly moved within the grate furnace in order to transport the fuel inside the boiler and then only covered with ash towards the end of the grate, to transport this too.
Furthermore it is mostly cooled by the supplied combustion air, or alternatively it is built separately water-cooled.
- Images of rust stones
Grate stones of the step grate of a biomass steam boiler
Underside of the same rust stones
Biomass boiler with moving step grate (gray) consisting of around 2000 grate stones
Wood furnace with a stepped grate made of individual grate stones (in operation)
Individual evidence
- ↑ Patent EP3601A1 : Grate bar, in particular for mechanically moved poking grates in large combustion systems. Published August 22, 1979 .
- ↑ Patent EP2306086A3 : Grate bar. Published on February 20, 2013 .
- ↑ Kunst- und Gewerbeblatt des Polytechnisches Verein für das Kingdom Bayern, Volume 24. Fleischmann, 1838 (Online as Google eBook.) P. 597/598