Patent ID: 6984266
Filing Date: 2006-01-10
Classification: B01F,B27N

Abstract:
1. A system for the production and preparation of fibers prior to their hot-pressing to form fiberboards, comprising a refiner ( 1 ) for the milling of, chips to form fibers which then pass by steam or air pressure through a blow line ( 2 ), a tubular dryer ( 3 ), a first separator ( 4 ), a sizing device ( 9 ) and a second separator ( 6 ) into a fiber bunker preceding a spreading machine or directly into a spreading machine, the sizing device ( 9 ) being integrated into a connecting pipeline ( 5 ) to the second separator ( 6 ) and comprising a size wetting zone ( 12 ) which extends over a portion of this connecting pipeline ( 5 ) and comprises an inner pipe ( 14 ) which is provided with air passage orifices ( 13 ) and has size nozzles ( 23 ) projecting into it and a flow cross section enlarged in relation to the connecting pipeline ( 5 ) and which is surrounded by an outer pipe ( 15 ) which, with the inner pipe ( 14 ), encloses an interspace having at least one air connection, characterized by the following features: a) a fiber outlet of the first separator ( b) the inner pipe ( c) an upstream annular cone ( d) the outer pipe ( e) the air passage orifices (