Self-cleaning system for vibratory screens

A self-cleaning screen assembly for a vibratory screen separator, comprising

• a frame;
• a flow through support surface spanning across said frame;
• screen cloth extending across said frame substantially parallel to and displaced from said support surface;
• cleaning elements positioned between said support surface and said screen cloth;
• a mounting between said support surface and said screen cloth defining a mounting axis, said mounting including a stationary rod defining said axis between and extending substantially parallel to said support surface and said screen cloth;
• a member mounted eccentrically about said mounting axis of said mounting between and displaced from both said support surface and said screen cloth to move eccentrically in response to vibration of said frame, said member including a tube mounted on said stationary rod, the inside diameter of said tube being larger than the diameter of said stationary rod and said stationary rod being displaced from said support surface such that said tube is free to eccentrically rotate about said rod without contacting said support surface.

A self-cleaning screen assembly for a vibratory screen separator, comprising

• a frame;
• a flow through support surface spanning across said frame, said flow through support surface includes a plate with holes therethrough and flanges extending substantially normally from said plate on opposite sides thereof, said flanges being slightly mutually divergent and spaced to fit in interference within said frame;
• screen cloth extending across said frame substantially parallel to and displaced from said plate;
• cleaning elements positioned between said plate and said screen cloth;
• a plurality of mountings between said plate and said screen cloth, said mountings being mutually spaced apart, each said mounting including a stationary rod defining an axis between and extending substantially parallel to said plate and said screen cloth;
• a plurality of members mounted eccentrically about said stationary rods, respectively, between and displaced from both said plate and said screen cloth to move eccentrically in response to vibration of said frame, each said member including a tube mounted on a said stationary rod, respectively, the inside diameter of each said tube being larger than the diameter of the associated said stationary rod and each said stationary rod being displaced from said plate such that the associated said tube is free to eccentrically rotate about said rod without contacting said plate.

A self-cleaning system for screens used in a vibratory screen separator, comprising

• a flow through support surface;
• cleaning elements positionable on said support surface;
• a mounting fixed to said support surface and defining a mounting axis displaced from and substantially parallel to said support surface;
• a member mounted eccentrically about said mounting axis of said mounting and displaced from said support surface to move eccentrically in response to vibration of the vibratory screen separator.

A self-cleaning system for screens used in a vibratory screen separator, comprising

• a flow through support surface, said flow through support surface including a plate with holes therethrough and flanges extending substantially normally from said plate on opposite sides thereof, said flanges being slightly mutually divergent and spaced to fit in interference within the screen;
• cleaning elements positionable on said plate;
• a mounting fixed to said support surface and defining a mounting axis displaced from and substantially parallel to said plate;
• a member mounted eccentrically about said mounting axis of said mounting and displaced from said plate to move eccentrically in response to vibration of the vibratory screen separator.

A self-cleaning system for screens used in a vibratory screen separator, comprising

• a flow through support surface;
• cleaning elements positionable on said support surface;
• a mounting fixed to said support surface and defining a mounting axis displaced from and substantially parallel to said support surface, said mounting including a stationary rod defining said axis;
• a member mounted eccentrically about said mounting axis of said mounting and displaced from said support surface to move eccentrically in response to vibration of the vibratory screen separator, said member including a tube mounted on said stationary rod, the inside diameter of said tube being larger than the diameter of said stationary rod and said stationary rod being displaced from said support surface such that said tube is free to eccentrically rotate about said rod without contacting said support surface.

A self-cleaning system for screens used in a vibratory screen separator, comprising

• a flow through support surface, said flow through support surface including a plate with holes therethrough and flanges extending substantially normally from said plate on opposite sides thereof, said flanges being slightly mutually divergent and spaced to fit in interference within the screen;
• sliders positionable on said plate;
• a mounting fixed to said support surface and defining a mounting axis displaced from and substantially parallel to said plate, said mounting including a stationary rod defining said axis;
• a member mounted eccentrically about said mounting axis of said mounting and displaced from said plate to move eccentrically in response to vibration of the vibratory screen separator, said member including a tube mounted on said stationary rod, the inside diameter of said tube being larger than the diameter of said stationary rod and said stationary rod being displaced from said support surface such that said tube is free to eccentrically rotate about said rod without contacting said support surface.

A self-cleaning screen assembly for a vibratory screen separator, comprising

• a frame;
• a flow through support surface spanning across said frame;
• cleaning elements positioned on said support surface;
• a mounting fixed relative to said support surface defining a mounting axis extending substantially parallel to said support surface;
• a member mounted eccentrically about said mounting axis of said mounting displaced from said support surface to move eccentrically in response to vibration of said frame.

A self-cleaning screen assembly for a vibratory screen separator, comprising

• a frame;
• a flow through support surface spanning across said frame;
• cleaning elements positioned on said support surface;
• a mounting fixed relative to said support surface defining a mounting axis extending substantially parallel to said support surface;
• a member mounted eccentrically about said mounting axis of said mounting displaced from said support surface to move eccentrically in response to vibration of said frame, said member being substantially heavier than each said cleaning element.

A self-cleaning system for screens used in a vibratory screen separator, comprising

• a flow through support surface;
• cleaning elements positionable on said support surface;
• a mounting fixed relative to said support surface and defining a mounting axis displaced from and substantially parallel to said support surface;
• a member mounted eccentrically about said mounting axis of said mounting and displaced from said support surface to move eccentrically in response to vibration of the vibratory screen separator, said member being substantially heavier than each said cleaning element.