Measurements in the primary air and recirculation air
The flow rates of the primary and recirculation air are measured, and the required air quantities are calculated in advance. This achieves optimal combustion results and emissions values in all load stages, including with difficult fuels. The grate of the Pyroflex SRT is divided into up to four independent primary air zones. This allows the required air quantities to be adapted to the fuel.
Use of high-quality O2 probes
The secondary air flow rate is regulated based on the detected oxygen level. High-quality O2 probes make it possible to maintain a continuously low residual oxygen level in the flue gas (approx. 4–5% O2 (damp) – depending on the fuel). This allows the highest levels of efficiency to be achieved even in modulating partial load operation.
Automatic ash removal
Several variants are available for removing ash from the combustion chamber as well as the cyclone and electrostatic filter, depending on the fuel and ash content. The ashes can be discharged jointly or separately. They are deposited into containers of up to 800 l or in settling pits of 5.5 to 12 m2. They can also be filled into big bags.
The following variants are available:
- With trough chain conveyor
- With screws
- Laterally from the combustion chamber
- Directly under the combustion chamber