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High frequency vibrating screens

2016-09-20

ts vibrating screen

High frequency vibrating screens are 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. Its high frequency characteristics differentiates it from a normal vibrating screen. The high frequency vibrating screens usually operates at an inclined angle, traditionally varying between 0 to 25 degrees and can go up to a maximum of 45 degrees. Besides, it should operate at a low stroke and has a frequency ranging from 1500 – 7200 RPM.
Pre-treatment of the feed is often required before the use of the high frequency screen as the apertures in the screen may become blocked easily.

Range of application
High frequency screens have become more standardized and widely adopted in materials classification processes. It allows efficient cuts and fine separations, which can provide high purity and precise sizing control of the product (for sizes of fine particles up to 0.074-1.5mm).Common industrial applications include dewatering of materials, processing of powder in coal, metallurgy, ores and minerals, wood pelleting,fractionated reclaimed asphalt pavement,food,pharmaceutical and chemical industry. Fineness of the products and system capacities varies over a huge range between different models, to satisfy individual application requirements.

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