Dual-belt press
AssigneeSandco Limited
InventorKarl Gunnar Boman
Life of this patent
Estimating the term…
Abstract
A duel-belt press in which two mating endless steel belts are supported and pressed against each other through a treating zone while holding a layer of a product captive. The layer of product is compressed as it moves into the nip formed by two diametrically opposed compression rolls which act through the belts to compress the product layer. Belt support structures are provided through the zone extending from upstream to downstream of the compression rollers relative to the movement of the belts and the layer of the product.
Claims12
A dual-belt press in which two endless metal belts or the like are provided which on their facing sides are supported and pressed against each other by rollerlike pressure bodies, said belts being spread apart and forming an inlet area for compressing material masses, characterized by including a pair of compression rollers which form a compacting zone along said inlet area and which are diametrically opposed in the vicinity of the narrowest point of said inlet area between said belts, and supporting shoes which bear against the belts and bridge the space along said compacting zone and between the line of contact of said belt and said compacting roll and between the belt and the rollerlike pressure bodies.
In an endless belt press having a treatment zone through which a layer of compacted material is passed between the mating runs of two endless belts, the combination of, a pair of compression rollers which are diametrically positioned upon the opposite sides of said runs so as to provide a zone of maximum compression for the material passing to said treatment zone, means mounting said belts at the discharge end of said treatment zone spaced from each other to provide a discharge opening of substantially the dimension of the treated product, means mounting said belts at their other ends with the belts spaced from each other to provide an inlet zone in which the belts move toward each other into a compression zone and approach said compression rollers, and support structure within said compression zone which provide support surfaces against which said belts are urged by the material being compacted.
Dependencies are inferred from the claim text.