Abstract: A method and a device to be used in the process of manufacturing plates, such as fiberboards or the like boards, where the raw material in form of bio-mass particles, such as wood fibers or the like, applied with a thermosetting binder is spread onto a forming belt to form a mat, and where said mat by means of a hot press is compressed into the desired thickness of the finished plate and the thermosetting binder is hardened. According to the inventing a system and corresponding method for manufacturing biomass-based products is provided that has enhanced efficiency due to the application of ultra sound.

Abstract: A method and a device to be used in the process of manufacturing plates, such as fiberboards or the like boards, where the raw material in form of biomass particles, such as wood fibers or the like, applied with a thermosetting binder is spread onto a forming belt to form a mat, and where said mat by means of a hot press is compressed into the desired thickness of the finished plate and the thermosetting binder is hardened. According to the invention the thermosetting binder is applied to the dried biomass particles in an airborne process, where the intense and homogeneous contact of the biomass particles and the droplets of fluent binder are facilitated by the use of ultrasound generated by the use of compressed air, water steam or another gas.

Abstract: A method and a device to be used in the process of manufacturing plates, such as fibreboards or the like boards, where the raw material in form of bio-mass particles, such as wood fibres or the like, applied with a thermosetting binder is spread onto a forming belt to form a mat, and where said mat by means of a hot press is compressed into the desired thickness of the finished plate and the thermosetting binder is hardened. According to the inventing a system and corresponding method for manufacturing biomass-based products is provided that has enhanced efficiency due to the application of ultra sound.

Abstract: A method and a system to be used in the process of manufacturing plates, such as fibreboards, particleboards and the like boards, where the raw material in the form of biomass particles, such as wood fibres or wood particles of various size and shape are dried from its natural moisture content to a moisture content suitable to be applied with a thermosetting binder and be spread onto a movable forming belt to form a mat, and where said mat by means of a hot press is compressed into the desired thickness of the finished plate and the thermosetting binder is hardened. According to the invention, the drying process of the biomass particles is facilitated by the use of ultrasound to remove the sub-layer of air at the surface of the particles and thus to intensify the transport of heat energy into the particles and the transport of moisture from the particles.