Furnace

A biomass furnace ....

......without hot moving parts?
......with fluel flexibility from 0% to 60 % moisture?
......with turn down ratio 1:10 ?
......with dust emission 20 mg/Nm3 ?
......with CO emission below 15 mg/Nm3 ?

Brochure about Dall Energy Furnace

The Dall Energy furnace combines the well known updraft gasification process with a gas combustion section above the gasifier.

OVN_princip

In the bottom part, the solid fuel is converted into a burnable gas and fine ash. In the top layer, the fuel is dried and pyrolyzed.

The heat for the drying and pyrolysis process is a combination of convective heat from the gasification gases below and radiation heat from the gas combustion part above.

The gas velocity in the bottom part is very low. Consequently, particles remain here and the dust emission of the furnace is very low.

Gas from the bottom part is combusted in the top section. The gas combustion (flow, temperatures, emissions etc) is very stable.

Emission	Danish Law	Dansish Standard	Dall Energy
Dust (mg/Nm3)	40/100 (in chimney)	40 with baghouse filter 100 without baghouse filter	20 out of furnace !!!!
NOx (mg/Nm3)	400	200-400	175
CO (mg/Nm3) 100 % Load 40% Load 20% Load	625 625 625	300-600 ??? Not possible	15 15 15

High Quality manufacturing by SEM steelindustry

Our biomass furnace is manufactured by SEM steelindustry

SEM Steelindustry a/s has more than 30 years experience of manufacturing a wide range of machinery and components to the industry. Production equipment, semi- and fully automatic machinery and batch production are some of the fields SEM Steelindustry have great experience within.

Besides biomass combustion plants SEM Staalindustri a/s is subsupplier to Danish; power plants and the environmental sector including waste incenerators both in Denmark and abroad

SEM steel