US 10,086,408 B2Granted

Vibratory separator screen with multiple frame design

AssigneesM-I L.L.C., United Wire Limited

InventorsEric Cady, Graham Alexander Robertson, Claire Rosaleen Galloway McLean, LaTosha Moore, Andrew Ralph

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Abstract

A vibratory separator includes a screen frame having an upper screen surface and a plurality of openings and a first screen insert disposed in a first opening of the plurality of openings of the screen frame, the screen insert having a screen surface positioned at a first height above the supper screen surface. The vibratory separator also includes a second screen insert disposed in a second opening of the plurality of openings of the second screen frame, wherein a screen surface of the second screen insert is positioned at a second height. The second height may be different from the first height. A method of processing fluid includes providing a flow of fluid to a vibratory separator, and flowing the fluid over a screen having a first screen insert positioned at a first height.

Claims22

Dependent claims

An apparatus comprising:

a screen frame including:
a first tier having a plurality of openings therethrough forming a first screen surface, wherein each opening is defined by main ribs and, optionally, minor ribs of the first tier, wherein the main ribs extend between sidewalls of the first tier;
and
a second tier having a frame and a base opposite with respect to the frame of the second tier, wherein a portion of the base of the second tier contacts the first tier such that the frame of the second tier extends outwardly away from the first tier, at least one beam and at least one divider of the frame define a grid of upper cells forming a second screen surface having a width defined between side edges of the second screen surface, first and second tongue portions of the base, extending outwardly away from the frame of the second tier, define a grid of lower cells adjacent the first tier, the first tongue portion extends from the at least one beam of the frame, the second tongue portion extends from the at least one divider of the frame, and the second screen surface is spaced apart from the first screen surface, and further wherein the width of the second screen surface is greater than a width of each opening of the plurality of openings of the first tier such that the width of the second screen surface overlaps at least two adjacent openings of the plurality of openings of the first tier when the portion of the base of the second tier contacts the first tier;
and
a mesh disposed on the first and second screen surfaces.

3 more elements

An apparatus comprising:

a screen frame having a plurality of openings;
and
a first screen insert having a frame, with a width defined between side edges of the first screen insert and a height defined between a first surface and an opposite second surface of the first screen insert and a base opposite with respect to the frame of the first screen insert and extending outwardly away from the first surface of the first screen insert, wherein tongue portions of the base define a grid of lower cells adjacent to the screen frame such that the frame of the first screen insert extends outwardly away from the screen frame and the frame of the first screen insert has a screen surface, defined by beams of the frame and dividers of the frame, positioned at a first height above the plurality of openings of the screen frame, wherein the tongue portions of the base extend from the beams and the dividers of the frame and further wherein space is provided between the screen frame and the first surface of the first insert at the side edges of the first screen insert such that the space separates the screen frame from the first surface of the first screen insert at the side edges of the first screen insert.

Dependencies are inferred from the claim text.

Facts

Application: 14/102,237Filed 10 Dec 2013 · continuation in part
Priority: 11 Jun 2012
Published: US 2014/0183143 A13 Jul 2014
Granted: 2 Oct 2018
Term ends: Not estimatedThe source records don’t support an estimate.

Classification10 codes

B07B 1/4663
Constructional details of screening surfaces or meshes: multi-layer screening surfaces
B01D 33/0376
With flat filtering elements: supported
B07B 1/04
Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like: stationary flat screens
B07B 1/36
Moving screens not otherwise provided for, e.g. swinging, reciprocating, rocking, tilting or wobbling screens: jigging or moving to-and-fro in…