Working Principle of Gyratory Vibratory Screen

The unique gyratory motion imparts a combination of actions to the material as it passes along the screen surface. It begins with a horizontal circular motion at the feed end, gradually diminishing along the length of the machine to an elliptical path, and finally to an approximate straight-line motion at the discharge end. There is no vertical component to this motion thus keeping the material in constant contact with the screen surface.

The gyratory motion at the feed end of the machine immediately spreads the material across the full width of the screen surface to maximize screen utilization even though the feed is from a single point. At the same time, this motion stratifies the material, causing the fines to sink down against the screen surface. The particles that are appreciably smaller than the openings quickly pass through at this part of the screen.As the circular motion diminishes into an elliptical path, the gentle near-horizontal motion causes the fine particles closer in size to the screen mesh the near-size particles to fall through the mesh openings.The nearly linear reciprocating motion at the discharge end of the Gyratory Screener removes those particles closest in size to the mesh openings while gently conveying the oversize material off the screen.

Other Components of Gyratory Vibratory Screen

1)Cable suspended device

Screeners is cable-suspended from the four corners of the machine, thereby isolating out-of-balance screening forces from the surrounding structure. Accurate counterbalancing of the Screener makes this installation option possible. As with conventional cable suspension, this option effectively isolates the horizontal out-of-balance screening forces, helping to minimize costs for new structures.

2)Self-cleaning device

There is one screen deck(we call it cleaning deck) with larger screen mesh under the first floor of screen deck,the cleaning deck is devided into many sections by some plates,there are some flexible balls in each section.When the gyratory screen is runing,these flexible balls will move along the motion tract and they will jump up and down after hitting the plates or the other balls.Then it will clean the first screen deck or break some large size material by its hitting.

Applications of Gyratory Vibratory  Screen

As one of our featured products, we have supplied it to many factories and companies for many years and have enjoyed a good reputation because of its superior quality and long service life.

About the separation equipment, we usually call it plant rotary screen because of its moving track is gyratory along a circular on one plane. It has been successfully aplied to screening granular urea  in fertilizer plant. But it is also used to screen other thounds of different materials and is suitable for many industries and application as below:

Chemical, carbon product, wood chips, grain cleaning, mineral, fertilizer, steel shot, clay, animal feed etc.                      

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