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US 12,240,142 B2Granted
Method of glue-coating plant particles
AssigneeSiempelkamp Maschinen- und Anlagenbau GmbH & Co. KG
InventorsHans W. Fechner, Michael Schoeler, Jochem Berns, Rolf Trummel
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Abstract
Fiberboard or chipboard is made by first comminuting vegetable starting material in a first comminutor into a stream of loose plant particles with silicate particles. Then, in a first classifier silicate particles of a diameter of less than 50 μm are separated from the plant particles of the stream. The plant particles remaining in the stream are then glue-coated, and the stream is pressed into fiberboard or chipboard.
Claims10
A method of making fiberboard or chipboard, the method comprising the steps of:
- comminuting vegetable starting material in a first comminutor into loose plant particles and silicate particles;
- feeding the plant particles and silicate particles into a first classifier having an air inlet and an air outlet;
- generating an air stream in the first classifier by drawing air out of the first classifier through the air outlet;
- in the first classifier, air separating silicate particles of a diameter of less than 50 μm from the plant particles by applying the air stream to the particles such that the plant particles fall by gravity in the first classifier and the silicate particles exit the first classifier via the air outlet;
- discharging the fallen plant particles from the first classifier below the air outlet;
- glue-coating the fallen plant particles;
- and
- compressing the glue-coated plant particles into fiberboard or chipboard.
5 more elements
Dependencies are inferred from the claim text.