Introduction

High frequency screen is also called high frequency vibrating screen, which is a kind of separating equipment in ore dressing plants. It separates materials according to their particle sizes. High frequency screen has high efficiency and small amplitude, which is the effective equipment for the screening and grading of fine materials. It is widely used for screening or grading operations in ore dressing plant, such as iron, tin, tungsten, tantalum, niobium sand, etc. High frequency screen results in better separation conditions, which make the material which is less than the separation granularity.High frequency screen is made up with the vibrator, pulp distributor, screen frame, chassis, suspension springs, screens and other components. Mineral high frequency screen has the following merits: high efficiency, low amplitude, high frequency screening. The principle of high frequency screen is different from the general screen’s. High frequency screen adopt the technology of high frequency.

Working principle:
High efficiency breaks tension on pulp. So the fine grains vibrate strongly on the surface of screen, and the heavy useful grains separate out. As a result, the fine grains contact with screen frequently. So the fine grains which is smaller than the need fall down from the screen pore and leave the grain we need.

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　　1. Vibration exciter set the screen in motion by transmission devices while the screen box stay still.
　　2. The whole equipment is supported by vibration reduction system, which reduces the load of the ground.
　　3. The screen can be installed directly into the firm and even ground or common steel structure platform without foundation.
　　4. Its vibrating frequency is 50HZ, amplitude 0-2mm, vibration force 8-10 times stronger than that of acceleration of gravity.
　　5. The screen mesh is hardly blocked, therefore it is suitable for classifying fine materials of 0.074-1mm.