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BUTTNER - High Perfomance Flash Tube Dryers
Dry flakes and fibres in seconds – even those with high moisture content. Büttner`s industrial flash tube dryers are highly versatile and extremely high performance. They are employed for drying goods with a high surface moisture content or a very high specific surface. They serve, for example, to pre-dry wood flakes before the material makes its way into a drum dryer. Flash tube dryers are also used as lead dryers for the drying of fibres in medium-density fibreboard, paper pulp (TMP, BCTMP, Kraft pulp) or starch production. For many years Büttner`s flash tube dryers have been in global operation successfully in a variety of industrial sectors.
- Depending on the product, a water evaporation capacity of more than 70 t/h per unit
- Drying takes place in mere seconds, afterwards the material is separated mechanically or carried through into the attached drum dryer
- flue gas from grate-firing
- Büttner`s gas line burners
- hot gas from a gas turbine or gas motor
- indirectly through heat exchangers for steam or thermal oil
- any combination of the heating types mentioned
Flash dryers primarily consist of piping, through which heated dryer air flows. A product to be dried is brought into the dryer and conveyed further by the dryer air. Water evaporates in a matter of seconds. At the end of the flash tube, the material is separated from the air stream by means of cyclones. If the flash tube dryer is utilised as a pre-dryer, the material is fed into the drum dryer at the end of the process.