Vibratory screens, otherwise known as high frequency vibratory screens, are devices that are commonly used in the mineral processing industry in order to filter and separate substances.
There are many different designs that are useful for a number of different applications and industries, so it is important to know just how these vibratory screens function and how they might fit into your application.
High frequency vibrating screens and normal vibrating screens operate in the same fashion; the high frequency screens only operate at a high frequency in order to filter specific minerals.
Vibratory screens offer many different advantages. They are one of the best ways to filter and separate two or more substances from each other. Vibratory screens do this by breaking down the surface tension between the particles within the substances which allow them to separate more easily.
Vibratory screens often function at an angle in order to further separate materials. This angle provides what is referred to as the popcorn effect. This means that the coarser a particle is, the more likely it is going to be lifted higher while finer particles remain closer to the screen. The rate at which the screen vibrates, or the frequency, can be controlled in order to achieve the desired popcorn effect or separation.
As we stated before there are a number of different applications in which you can find a vibratory screen at work. Some of these applications and industries include, processing powder in coal, metallurgy, wood pelleting, fractionated asphalt pavement, ores and minerals, food, chemical applications and the pharmaceutical industry. Because of this there are multiple designs of vibratory screens available.
It is important to consult with a trusted vibratory screen manufacturer in order to determine what design is best for your application. If you do not have the correct design, or the frequency is not set correctly, you may experience inaccuracies when trying to separate particles as the process is influenced by many different factors, from equipment capacity to the angle at which the vibratory screen is placed.
Vibratory Screens Informational Video