Flue gas recirculation “over” and “under” the grate
The flue gas is drawn into the exhaust line and reintroduced to the combustion chambers “over” or “under” the grate with a fan. This decreases the flame temperature and reduces nitrous oxides. The efficiency of the system is increased as a result since a lower residual oxygen content remains in the flue gas, even in the case of dry fuels.
For the flue gas recirculation “under” the grate, the recirculated flue gas is mixed with the primary air in mixing chambers and then reintroduced under the grate. The flue gas recirculation “under” the grate also results in more complete combustion and prevents slag formation on the grate.
Hydraulically driven flat moving grate
The grate of the Pyroflex FSR is divided into two or three independent grate zones (depending on the unit size). The fuel is distributed over the entire grate surface. To achieve optimally complete combustion even with difficult fuels, the grates in the different zones can be operated at different speeds.
Minimal life cycle costs
We place the utmost importance on durability and a long lifespan for our systems. This is achieved by using robust system components. Solid steel construction and the use of high-quality refractory material guarantee reliable system availability for many years. The large grates and the above-average firebox volume significantly reduce wear. Thanks to frequency-controlled screws, grate drives and flue gas recirculation, we can guarantee minimal power consumption in all load states of the system.