Purge construction for a vibrating sieve filter

A vibrating sieving filter comprising, in combination:

• a generally cylindrical housing having a generally vertical axis, said housing having an open top, a horizontal inlet adjacent said top for fluid being filtered and a closed bottom, and a filtered fluid outlet disposed below said horizontal inlet;
• a cover for sealingly closing said open top of said housing;
• a sieving cylinder having an open top and a closed bottom disposed in said housing;
• a vertical extending support member extending into said sieving cylinder removably attached at one end to said closed bottom of said sieving cylinder and attached at the other end to
• said cover to support said sieving cylinder concentrically within said housing with said open top located below said horizontal inlet;
• a resilient seal disposed between said housing and said sieving cylinder located adjacent said open top of said sieving cylinder and below said horizontal inlet in said housing so that fluid being filtered which is introduced through said horizontal inlet will be directed through the open top of said sieving cylinder into a first chamber inside of said sieving cylinder, through said sieving cylinder to a second chamber between said sieving cylinder and said housing, and out of said second chamber through said filtered fluid outlet;
• a fluid actuated vibrator attached to said support member for vibrating said sieving cylinder, said resilient seal serving as a vibration fulcrum point;
• a pair of vertically extending resilient conduits connected between said cover and said vibrator for supplying and exhausting motive fluid for operation of said vibrator;
• means for removing fluid to a location outside said housing to remove contaminated effluents from said sieving cylinder, said means for removing being a pair of conduits disposed within said sieving cylinder;
• and
• quick disconnect means for attaching said cover to said housing so that said cover and said sieving cylinder are easily removed as a unit from said housing permitting said sieving cylinder to be removed from said support member for cleaning and servicing said sieving cylinder and vibrator.

A vibrating sieving filter comprising, in combination:

• a generally cylindrical housing having a generally vertical axis, said housing having an open top with a horizontal inlet adjacent said open top for fluid being filtered and a closed bottom with a vertically disposed filtered fluid outlet;
• a closure for sealingly closing the open top of said cylindrical housing;
• a sieving cylinder having an open top and a closed bottom disposed within said cylindrical housing;
• a vertically extending support member extending through said sieving cylinder, said support member including means for removably attaching one end to the closed bottom of said sieving cylinder and means for attaching the other end to said closure to support said sieving cylinder within said housing;
• a fluid actuated vibrator attached to said support member for vibrating said sieving cylinder;
• a pair of longitudinally extending resilient conduits connected between said closure and said vibrator for supplying and exhausting motive fluid for operation to said vibrator;
• quick disconnect means for attaching said closure to said housing so that said closure and said sieving cylinder are easily removed, as a unit, from said housing and said removal of said sieving cylinder from said housing permitting said sieving cylinder to be removed from said support member for cleaning and servicing said sieving cylinder and said vibrator;
• a first contaminate effluent line extending through said closure into said sieving cylinder and terminating adjacent the closed bottom of said sieving cylinder, said first contaminate effluent line being contained at least in part within said vertically extending support member;
• a second contaminate effluent line extending through said closure into said sieving cylinder and terminating adjacent the closed bottom of said sieving cylinder;
• a shutoff valve downstream of said filtered fluid outlet;
• a cleaning mode valve disposed in said first contaminate effluent line;
• and
• a resilient seal between said housing and said sieving cylinder which serves as a fulcrum point for the vibration of said sieving cylinder and which assures that the fluid being filtered will flow from said inlet into a first chamber inside of said sieving cylinder;
• and
• when said shutoff valve is open and said cleaning mode valve is closed said fluid will flow through said sieving cylinder into a second chamber between said sieving cylinder and said housing and out of said second chamber through said filtered fluid outlet in a normal filtering mode;
• when said shutoff valve is closed and said cleaning mode valve is open said fluid will pass through said first chamber picking up particulate contaminates from within said sieving cylinder and said first chamber and pass out through said first contaminate effluent line in a cleaning mode;
• and
• when said shut off valve is closed, and said cleaning mode valve is closed, and said first contaminate effluent line is blocked by said particulate contaminates, said fluid passes out through said second contaminate effluent line in a cleaning mode.

A filter device including a housing having an inlet an outlet and a fluid chamber disposed between said inlet and said outlet;

• a hollow filter element disposed within said fluid chamber between said inlet and said outlet to filter particulates from fluid flowing through said filter device between said inlet and said outlet said hollow filter element defining an interior space and having an opening fluidly connecting said interior space to said inlet, said inlet space defining an inlet side of said filter element;
• first conduit means operable upon actuation for directing a flow of fluid from said inlet side to a location outside said fluid chamber of said filter element to clean the inlet side of said filter element, said first conduit means having a portion disposed within said interior space of said filter element;
• and
• second conduit means operable upon said first conduit means being blocked by said particulates to direct a flow of fluid from said inlet side of said filter element to a location outside of said fluid chamber to clean said filter element, said second conduit means having a portion disposed within said interior space of said filter element;
• and
• means for stopping flow through said first conduit means and actuating flow through said second conduit means upon said first conduit means being blocked by said particulates.