Kohlbach - Model K12 -Combustion System

Adiabatic centre-flow furnace for optimised efficiency and lowest emissions even with very heterogeneous fuel material.
Equipped with hydraulic moving grate, also suitable for very wet and dirty fuels with very high ash content (up to A15), as well as for 100% wet bark, landscaping residues, Nawaro wood, etc.

No arches thus preventing ash deposits and significantly reducing maintenance workload.

Hydraulic fuel feed with shearing devices for fault-free feeding even with wet and rough fuel materials.

Reliable nominal power with all usable fuels and degrees of water content.

Reliable long operating life of the furnace thanks to full refractory lining and grate frame construction being cooled with water.

A cooled infeed zone fully to extend the lifespan and improve the partial load operation, startup and shutdown behaviour.
Rapid and simple installation thanks to pre-assembled modules.

Fuel

Water content (% weight): 20 to 60 depending on configuration

Size (nominal length mm): 30 to 100

Maximum ash content (% weight): 15

Variants

Mechanical de-ashing OR automatic ash discharge to reduce operational maintenance workload and thus guarantee extended run times between maintenance shut-downs. Applicable for all boiler systems (water, steam and thermal oil)

Supplementary equipment

Flue gas recirculation and/or air pre-heating for additional expansion of the range of usable fuels, available SNCR injection or downstream SCR catalysers for use in particularly sensitive and emission-protected regions, special version also available for the admixing of specified agrarian biomass (miscanthus, corncobs, etc.) upon customer request.