Force Technology Corp.

Wesser Og Dueholm Arkitekt-og Ingeniorfirma V/sten Dueholm

Dieffenbacher Gmbh + Co. Kg

Dieffenbacher Gmbh Maschinen-und Anlagenbau

Wesser Og Dueholm Arkitekt- Og Ingeniørfirma V/sten Dueholm

Sten Dueholm

Niels Krebs

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.

Method and system for enhanced manufacturing of biomass-based products

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. Further measures to intensify the contact between the biomass particles and the binder droplets utilizing the dipole moment of the biomass particles, at the same time preventing the binder to stick to the walls of the device, as well as measures and to control moisture content and temperature of the binder-loaded particles are disclosed.

Method and device for applying a synthetic binder to an airborne flow of fibers

A testing device tests a mat that is moved in one direction and that is made of biomass particles for manufacturing boards. On one side of the mat, radiation sources are positioned with a transversely spaced-apart relationship transverse to the direction of motion. On the other side of the mat, a line of detector elements is arranged beneath each of the radiation sources. A fan-shaped beam impinges on said detector elements. The beam passes either through one standard body, through the mat, or through neither the standard body nor the mat and is received by the detector elements and converted into electric output signals. The output signals are transferred via lines to an evaluating circuit that controls a device for removing mat portions that contain unwanted matter or the weight per unit area of which is too low.

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Hellerup, Denmark

Sten Dueholm