Three-dimensional Screen Panels

Several types of bonded screens are available. The repairable perforated shaker screen has one or more layers of fine mesh cloth bonded to a sheet of metal or plastic with punched, patterned holes. Perforated plate designs are available in various opening sizes and patterns. Additional designs include a special application where backing and fine screen(s) materials are bonded together, eliminating the need for perforated plates. Flat-surfaced, pretensioned screen panels are becoming popular because of their even tensioning, easy installation, and the even  distribution of liquids and solids across the screen deck.

Three-dimensional screen panels were introduced in the mid 1990’s. These typically of fer more screening area than flat-panel, repairable plate screens while retaining the ability to be repaired.

This type of screen panel adds a third dimension to the previous twodimensional screens. The screen surface is rippled and supported by a rigid frame. Most three-dimensional screen panels resemble the metal used in a corrugated tin roof. Construction consists of a corrugated, pretensioned screen cloth and bonded to a rigid frame.

Like bonded flat screens, the three-dimensional screen panel needs only to be held firmly in place with a hookstrip or other means to prevent separation between the shaker bed and the screen panel during vibration. Three-dimensional screen panels can be used to support any type or style of wire cloth and can be used with any type of motion. Three-dimensional screen panels allow solids to be conveyed down into the trough sections of the screen panel. When submerged in a liquid pool, this preferential solids distribution allows for higher fluid throughput than is possible with flat screen panels by keeping the peaked areas clear of solids control. A three-dimensional screen panel improves distribution of fluid and solids across the screen panel. This reduces the characteristic “horseshoe effect ” caused by shakers using crowned screen beds.





QR 编码