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The most effective shaker screens maintain methods

2015-11-04

Basically, a screen acts as a "go-no-go"gauge: Either a particle is small enough to pass through the screen or it is not. Screening surface used in solids control equipment are generally made of multi-layered woven wire screen cloth and are the“heart and soul”of the shale shaker.

More often than not, the quality of a shale shaker is defined by the quality of screens it utilizes. The most effective screens maintain the following characteristics:

1. Multi-Layered Mesh Screens
Layered screens have two or more screen cloths, usually of different mesh, mounted in a single screen panel. These screens will have openings that vary greatly in size and shape. Mesh is defined as the number of openings per linear inch. Mesh, can be measured by starting at the center of one wire and counting the number of openings to a point one inch away.

2. Tensioned Stainless Steel Wire Mesh
Wire mesh should be corrosion resistant and provide for a tight stretched upper surface. Screens that do not maintain a taunt upper surface will damage easily and provide a poor solids cut.

3. API Qualification
Screen characteristics and performance vary greatly from one supplier to another. To properly characterize the cut point of a screen and to ensure that the screens being supplied meet internationally acceptable standards, only API 13C qualified screens should be utilized.