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Solutions For Sawmills and The Wood Industry
For more than 25 years, we have supplied kilns for drying systems where our customers dry everything from sawdust for pellet production, to grass that is dried, pelletized and used during the winter as animal feed.
Our drying plants are designed to either supply the drying systems with hot raw gases between 300-500 C° or to steam systems supplying energy to belt dryers or converted rotary dryers. In this case, there are high demands that the final dried product has an evenly dried quality before it is pelletized, for example.
Our combustion system is part of the same series as the other energy systems, but in these applications there are slightly different requirements for temperature control of the hot gases. This means that our control systems play an important role in the design of a drying plant.
The boiler is a three-stage boiler with vertical flue gas tubes designed to be docked to our biofuel incinerator. The boiler is manufactured according to the latest technical requirements and undergoes extensive testing before being put into operation. It is characterized by a robust construction that provides a long service life.
Jernforsen`s incinerator for moist fuels is a very well-proven and robust solution for combustion of moist biofuels, such as bark, sawdust, forest chips and grot.
The furnace is made of a steel structure with a refractory lining, insulating material and covered with corrugated sheet metal. Inside, there is a movable and a fixed grid structure. The grate ladder is controlled by a forward motion that moves the fuel forward, after which it is burned.
At the end of the process, the ash is finally burned before being transported to the ash container. During the roasting process, we also add air, primary and secondary, to optimize combustion before entering the pressure vessel. The hot gas is now ready to be converted into the energy appropriate to the process.
The furnace is air-cooled and is cooled through an air jacket by the primary fan that preheats the combustion air.
The plants are manufactured using the latest technology with fully automated combustion systems, automatic ash discharge and modern PLC control systems.
Whether you choose a machine or turnkey contract from us, we offer a quality-assured workflow, well tested over decades.
The oven is equipped with fully automatic ash discharge both under and in front of the grate. The ash discharge is sealed for a good working environment.
Jernforsen`s boilers use compressed air sweeping - sweeping using compressed air. The boiler sweeping system is designed to increase the time between each regular sweep.