FIELD: woodworking.
SUBSTANCE: invention is related to woodworking industry and may be used in production of biofuel both in loose and granulated form (pellets, granules). Method of fine timber fraction drying in petrolatum consists in that fine timber fraction and petrolatum heated to temperature of 125-140°C are supplied to mixing cylinder in proportion of 70% of timber fraction and 30% of petrolatum in volume and mixed with the rate of at least 3.0 m/sec, simultaneously moving it to the top part of cylinder, petrolatum forcing water out of timber. Then horizontally rotating augers force the mixture into separator, wherein timber fraction is separated into components and separated from petrolatum, petrolatum being evaporated from timber on cooling transporter.
EFFECT: maximally efficient drying of timber fractions of different sizes in single technological process.
1 dwg
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