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Why Should the Pharmaceutical Industry Use a Vibrating Screen? Professional

منذ 3 أسابيع Automobiles Constantine   41 الآراء

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موقعك: Constantine
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Non-vibrating screens vs. vibrating screens

What are non-vibrating screens?

As their name indicates, non-vibrating screens perform their function without the use of vibrating movements, only based on the force of gravity. They were traditional forms of screening until recent times, consisting of a fixed screen with a steep inclination. Today the non-vibrating screens have been displaced by vibrating screens in which gravity is combined with the vibration movement.

What are vibrating screens?

In Vibrating Screens, the vibratory motion is coupled with gravity to make the screening process more efficient. With vibration, the particles of the product placed on the screen mesh jump and hit against the screen openings, more likely to pass through.

Process efficiency is expressed as a percentage. The vibrating screen never reaches 100% efficiency because it would require an extremely long process. However, the most modern equipment achieves high percentages, acceptable for what is required.

Efficiency is calculated as the proportion by weight of the particles that passed out of the total weight of product placed on the screen, expressed as a percentage.

What is a Vibratory Feeder?

Vibratory feeders are short conveyors used to transport bulk materials utilizing a controlled vibratory force system and gravity. The vibrations impart a combination of horizontal and vertical acceleration through tossing, hopping, or sliding-type of action to the materials being handled. Gravity counters some of the acceleration from the vibration and helps move the materials in a certain direction.

A basic Vibrating Feeder consists of a trough supported by springs, hinged links, or other force-dampening mechanical components. These isolate the vibratory feeder from the structural members of the building which can cause unwanted reaction forces. Attached to the trough is a drive unit that produces high frequency, low amplitude oscillations. These oscillations are tuned to create the desired movement of the material.

A vibratory feeder is one of the many pieces of equipment designed for bulk handling. Bulk handling materials have certain properties that separate them from fluids (liquid and gas). Other equipment used for transporting bulk materials are screw conveyors, belt conveyors, apron conveyors, flight and drag conveyors, pneumatic conveyors, reciprocating plates, and so on.

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