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A Multi-Purpose Rotating filter comprising a multiplicity of controlled pore sized membrane covered hollow double cone shaped filter discs mounted on a rotatable hollow shaft with provisions for feed between the rotating discs and disc speed sufficient to create a boundary layer to keep the disc sur

A Multi-Purpose Rotating filter comprising a multiplicity of controlled pore sized membrane covered hollow double cone shaped filter discs mounted on a rotatable hollow shaft with provisions for feed between the rotating discs and disc speed sufficient to create a boundary layer to keep the disc surfaces essentially clean as disclosed.

대표청구항 ▼

A Multi-Purpose Rotating Membrane Filter Unit comprising: a) a rigidly mounted cylindrical body; b) a rotatable hollow shaft means in said rigidly mounted cylindrical body; c) a plurality of controlled pore size membrane-covered hollow disc means mounted on said rotatable hollow shaft means with ope

A Multi-Purpose Rotating Membrane Filter Unit comprising: a) a rigidly mounted cylindrical body; b) a rotatable hollow shaft means in said rigidly mounted cylindrical body; c) a plurality of controlled pore size membrane-covered hollow disc means mounted on said rotatable hollow shaft means with openings in said rotatable hollow shaft means communicating with an interior of said controlled pore size membrane-covered hollow disc means; said disc means comprising: 1) two doughnut shaped flat perforated metal plates with each of said perforated metal plates welded to a doughnut shaped hub on an interior periphery and welded together at an outer periphery to form an open interior double truncated cone shaped disc; 2) a minimum of one metal screen covering fastened to each exterior side of said doughnut shaped perforated metal plates and said hub; 3) a controlled pore size plastic membrane covering adhering to each exterior side of said metal screen covering; 4) a minimum of one metal pipe extending vertically through said hub to allow upward liquid flow and openings in said hub to communicate with an interior of said rotatable hollow shaft; d) a first draw-off means in said rigidly mounted cylindrical body whereby material may be continuously removed from the upper part of said rigidly mounted cylindrical body; e) a second draw-off means in said rigidly mounted cylindrical body whereby material may be removed from a lower part of said rigidly mounted cylindrical body; f) a third draw-off means in said rigidly mounted cylindrical body whereby filtrate may be continuously removed from the interior of said rotatable hollow shaft means; g) a back pulse pump means connected with said third draw-off means where in said filtrate may be periodically pressured to backflow through said controlled pore size membrane-covered hollow disc means, h) a feed manifold means mounted on said rigidly mounted cylindrical body with exit openings from said feed manifold means providing an inlet feed between each pair of said plurality of controlled pore size membrane-covered hollow disc means.