High-frequency vibrating screen is very important piece of screening equipment, used for grading and screening raw materials of different sizes. Most commonly used in the mineral processing industry, the high-frequency vibrating screen efficiently separates solid and crushed ores. This type of vibrating screen is composed of a vibration exciter, a screen frame, an ore slurry distributor, suspension springs, a mesh and a rack. With its electromagnetic vibrator, the screen creates an aggressive vibration which is applied directly on the screen, The electromagnetic vibrator is mounted on top of the screen and is connected to the screening surface.
The high-frequency vibrating screen has unique structure, and even more unique working principle. For example, in other screening machines the sieve box moves, but in this tool the sieve box stands still, while the sifter vibrates. The gap width of the high-frequency vibrating screen can be adjusted so that the materials can be easily classified according to their size. In the return circuit of the ore grinding process, this screen is often used to control and classify the grinding ore products and to screen out the coarse particles. The fine particles beneath the high-frequency vibrating screen are discharged in order to avoid over-crushing and re-grinding. Finally, the fine particles that come out from the small gap are stored properly.
The high-frequency screen has become widely adopted piece of screening equipment, as it allows very efficient cuts and fine separations. Also, it provides very accurate size-control. This screen adopts the low amplitude and high-frequency vibration for powder processing in coal, electricity, construction, chemical and metallurgy industry. However, the high-frequency vibrating screen is most suitable for screening and grading fine powder for the mineral processing industry.
The mineral processing industry works with ferrous and non-ferrous metals that demand high-frequency. Once the ores are crushed into small pieces, the high-frequency vibrating screen classifies the particles: the small pieces go through the small gap at the bottom and the larger ones go through another round of screening. By using a high-frequency vibrating screen, the contractors can gain many advantages, such as easy recovery, very small-sized separation, less energy consumption, etc. The biggest advantage is the significant improvement of the final product.