High Frequency Vibrating Screen Used In Mineral Processing

High Frequency Vibrating Screen

High frequency vibrating screen is  the most important screening machines primarily utilised in the mineral processing industry. They are used to separate feeds containing solid and crushed ores down to approximately 200μm in size, and are applicable to both perfectly wetted and dried feed. The frequency of the screen is mainly controlled by an electromagnetic vibrator which is mounted above and directly connected to the screening surface.

This YK vibrating  screen is always used in processing minerals such as ferrous metals including hematite&magnetic and nonferrous metals including lead, zinc, glod and silver etc.This machine works in a re-circulating network with ball mill, which can upgrade the fineness of ferrous and nonferrous metals. Its efficiency is twice as that of spiral classifier.

The characteristics of electromagnetic high-frequency vibrating screen in structure and technical includes the follow few points:

1) The sifter vibrates, sieve box stand still.
2) With a high vibration frequency as well as a big vibration intensity. This frequency is most suitable for grading vibrating screening fine powder, which make the screen with a strong self-cleaning ability and not easy blockage, at the same time achieve good classification effect.
3) Excitation control digitalized. The amplitude can be adjusted stepless on line according to the needs of production, it is very convenient to use.
4) With a small the mass of vibration, low power consumption ( power consumption per ton of coke is only 0.05kWh ).
5) The screen is with a high porosity, which can reach 31%-39%, sieving efficiency can reach above 80% and the handling capacity is up to 5-8T / ( h, M2 ).

High frequency vibrating screen has a strong adaptability in grading size and has a relative accuracy in the control of particle size. The high frequency play an important role in fine classification and has now become the mainstream of fine grading equipment. Compared with mechanical high frequency screen, electromagnetic high-frequency screen not only delivers the vibration but also plays a role in clearing network for its unique exciting way transforming vibration by hitting the screen, so the electromagnetic high-frequency screen has the obviously advantages in the same type equipment, which has fully embodied in the applications of practice.

In addition, because the screen frame of the electromagnetic screen does not move, it is easy to realize the large scale in the structure. The single screen surface area can reach 30 m2, and the electromagnetic high frequency vibrating screen will be the developing trend of fine grading equipment.