INTEC was commissioned to supply a natural gas-fuelled 10 MW heat transfer oil heater for a new MDF production plant. Thanks to the short delivery time for this heater, MDF production was able to start early. As practised at other sites, ecological and environmental objectives led to the commissioning of a biomass-fired heating centre to supply energy for MDF production. 

When designing the plant, only the company's own production waste was to be used as fuel. Two dust injection nozzles, each with a capacity of 5 MWth, were installed to ensure rapid controllability of the grate firing system with a firing capacity of 26 MWth. 

After complete burnout, the hot gas flow from the incinerator is divided into two separately controllable hot gas volume flows. One hot gas flow heats heat transfer oil in a tube bundle heat exchanger with an output of 10 MW. The second hot gas flow is used to preheat process gas in another heater. This process gas is run in a closed circuit via a wood dryer.

SERVICES PROVIDED BY INTEC AND COMPONENT DESCRIPTION

Planning, delivery, installation supervision and commissioning
4-zone feed grate
Injection firing
Adiabatic combustion chamber
Heat transfer oil heater
Process gas heater
Combustion air preheater
Fuel conveying and fuel metering