Depending on the fuel quality, it may be necessary to implement additional measures to meet the dust emission limits for wood-fired heating systems.
The HERZ electrostatic filter offers an optimal solution for this purpose.
The HERZ electrostatic filter is an electrostatic precipitator that significantly reduces fine dust emissions from wood-fired systems. The filter is suitable for all types of wood heating systems with outputs of up to 1.5 MW and is installed in the boiler room directly after the boiler. It can be used both for new installations and for retrofitting existing heating systems.
In addition, the mechanical cleaning system enables fully automatic operation.
The major advantages of the electrostatic precipitator
The filter is based on the electrostatic principle. High voltage charges the fine dust particles contained in the flue gas, causing them to adhere to the inner walls of the filter pipes. This results in a separation efficiency of approximately 80%.
The filter is installed directly after the boiler in the boiler room. It can be used for both new installations and retrofitting existing heating systems.
The separator switches on and off automatically via a boiler signal or temperature control. Operating parameters can be set and monitored through a touch display.
The collected dust is removed from the filter pipes via sliding gates and falls into the ash tray. Optionally, the filter can be equipped with an automatic ash removal system, which collects the dust in a separate ash container.
The filter series is available in 12 different performance sizes of up to 1,500 kW.
Integrated E-Filter for HERZ firematic
The adaptation of the new innovative E-filter on a HERZ firematic provides the possibility to ensure minimal dust emissions during continuous operation.
The advantage of this solution is that the filter system is fully integrated into the unit, allowing for space-efficient and optimal use. Additionally, due to the filter integration, no separate ash collection container for the E-filter ash is required. The fine dust separated by the E-filter is collected together with the fly ash through a fully automatic ash removal system into a common container. The E-filter itself also features fully automatic cleaning, minimizing manual maintenance and cleaning efforts.
Example of an integrated E-filter on a HERZ firematic 120–201 kW system