Patent ID: 6748670
Filing Date: 2004-06-15
Classification: B01J,F26B

Abstract:
Method of drying a medium for producing a porous matrix from a structural raw material, CHARACTERIZED IN feeding a liquid inert agent into a vessel (5) at controlled pressure and amount through a valve (7), transferring the pressurized liquid inert agent to a mixing vessel (4), said mixing vessel (4) also receiving the structural raw material through an inlet valve (10), adjusting the pressure and temperature inside the mixing vessel (4) to desired levels by a release valve (6), upon complete mixing of the inert agent with the structural raw material, the mixture is expanded into a porous matrix and injected into a drying circuit through a drying chamber (3), the matrix thereby being kept suspended in the drying chamber by a drying medium, supplied by a blower (2), moisture being removed from the mixture through a heat exchanger coil comprising a first heat exchanger (11) where the water vapour is condensed and removed from the circuit and finally the drying medium is adjusted to the desired inlet condition in a second heat exchanger (1) before the drying medium returns to the drying chamber (3) and again flows through the matrix.