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Johnson sieve bend screen

2017-09-05 By Lisa

Description of the Johnson Sieve Bend Screen

The Johnson Sieve bend screen has a greater screeing capactity than a flat screen due to forces exerted as material flows against the curved surface. This Johnson screen sieve bend curved static screen plate is mounted in a frame with the screen openings perpendicular to the flow.In a typical feed situation,the leading edge of the wedge wire removes the water and fine particles through the over sized particles move across the top of the screen. Separeation size in considerably smaller than screen openings,usually about one-half the opening size.
The Sieve bend screens are ideal for sizing and dewatering applications in liquid/solid separation situations.It is extensively used for fine fiber removal in the starch industry.It also is used in other industries such as food processing waste water cleanup and corn wet milling.

Advantage of the Johnson Sieve Bend Screen

1. Vee-Wire® shaping to deliver greater cut-point performance, resulting in improved classification of product;
2. Resistance welding ensuring aperture integrity and weld strengths, resulting in reduced wear and improved efficiency;
3. Designing the optimum Vee-Wire® profile, aperture and material selection to enhance screen life and sizing efficiency over the high impact/wear zones;
4. With world class Vee-Wire® shaping, Screen and Sieve fabrication under one roof, Johnson Screens® delivers product with superior quality that remains cost-effective.

Johnson Sieve Bend Screen
 Features of the Johnson Sieve Bend Screen

The Johnson Sieve bend screen are used in a wide range of mineral processing applications like coal preparation.
Sieve Bends can be either flat or curved panel that “slices” mineral from the flowing stream by placing slotted Vee-Wire perpendicular to the flow with the primary function of sizing at a predetermined cut-point. Johnson Screens continues to invest in leading technology to improve the efficiency of the mineral classification process for the mining industry.
And the sharped Vee-Wire (profile wire) technology enables static Sieve Bends to provide excellent classification. Each profile wire can be custom designed to maximise your process effeciency and longer wear characteriestic to ensure correct particle reporting. 

Work Principle of the Johnson Sieve Bend Screen

The Johnson Sieve bend screen mainly works as fitting panels for rotary screens or vibrating screens. Each unit is designed to suit the specific requirements of the customer. Consisting of a basic outer casing, which can be manufactured in mild steel or stainless steel, each unit incorporates a distribution chamber and feed weir; over which the effluent passes onto the wedge wire panel which is set at right angles to the flow to enable the separating process to commence. The separated solids collect on the lower half of the screen to drain and compact, they then slide by gravity onto a solids discharge chute.

Johnson Sieve Bend Screen

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