Abstract An apparatus for producing chip or fiberboards in which specific amounts of loose chips or fibers are fed continuously into at least two chambers in each of which these chips or fibers are broken up into small particles by means of a comminuting mechanism and are intimately mixed with each other and thrown through substantially horizontally extending dispersing air currents and in the first chamber at different angles in a direction opposite to the direction of travel of a conveyor belt or the like passing through the chambers in a horizontal direction near the bottom of the chambers, and in the following chamber at different angles in the opposite direction, i.e., in the direction of travel of the conveyor belt, so that in the first chamber at first the finest particles are deposited on the belt and thereafter progressively coarser particles upon the finer particles, while in the following chamber at first the coarsest particles and thereafter the progressively finer particles are deposited on the particles which were previously deposited.
In an apparatus for depositing comminuted materials first upon conveying means traveling continuously in one direction and then upon each other for the purpose of forming a layer which is adapted to be compressed so as to form chip or fiberboards comprising at least two spreading chambers above said conveying means and having upper inlet openings, means for blowing adjustable air currents in opposite directions above said conveying means and underneath said inlet openings into each of said chambers, and proportioning and feeding means for feeding said materials to at least one loosening device and then through said inlet openings into each of said chambers, the improvement comprising a comminuting mechanism and a screen partly covering the same in each of said chambers underneath said inlet opening for additionally comminuting and intimately mixing said materials and dispersing them into said air currents and through the same before said materials are deposited upon said conveying means and upon each other.
Claim 2
Dependent Claim
159 words
In an apparatus for depositing comminuted materials first upon conveying means traveling continuously in one direction and then upon each other for the purpose of forming a layer which is adapted to be compressed so as to form chip or fiberboards comprising at least two spreading chambers above said conveying means and having upper inlet openings, means for blowing adjustable air currents in opposite directions above said conveying means and underneath said inlet openings into each of said chambers, and proportioning and feeding means for feeding said materials to at least one loosening device and then through said inlet openings into each of said chambers, the improvement comprising a comminuting mechanism and a screen partly covering the same in each of said chambers underneath said inlet opening for additionally comminuting and intimately mixing said materials and dispersing them into said air currents and through the same before said materials are deposited upon said conveying means and upon each other.
Claim 3
Dependent Claim
63 words
An apparatus as defined in claim 1, in which the apertures of said screen which covers said comminuting means in the direction toward the inside of each of said chamber are disposed in such positions that the finally comminuted material passes through said apertures in directions extending from oblique angles to a substantially horizontal direction relative to the plane of said conveying means.
Claim 4
Dependent Claim
37 words
An apparatus as defined in claim 1 wherein said comminuting mechanism and said screen are disposed so that the air currents produced by said means for blowing adjustable air currents impinge only upon the lower extremities thereof.
Claim 5
Dependent Claim
31 words
An apparatus as defined in claim 1 wherein said at least one loosening device is positioned directly above each of said inlet openings and adjacent to said proportioning and feeding means.