Rotary vibration sieve is a kind of efficient screening equipment, it is through the rotation of the motor to make the sieve surface vibration, so that the sieve material in the sieve surface by the action of vibration force and layered separation equipment. The working principle of rotary vibrating screen mainly includes three aspects: vibration source, screen body and screen bottom. 1. vibration source The vibration source of rotary vibration sieve is generated by the motor brake, the motor drives the eccentric block of the sieve body to rotate, thus generating vibration force and driving the sieve body to generate vibration. With the continuous rotation of the driving disk, due to the continuous rotation of the eccentric block, the screen body in the X, Y direction shows periodic vibration, amplitude and vibration frequency can be controlled by changing the position and size of the eccentric block. 2. Sieve body Sieve body is the most critical part of the rotary vibration sieve, the design structure of the sieve body affects the effect of screening, the design structure of the sieve body is mainly divided into three parts: sieve surface, sieve frame and sieve mesh. The screen surface is the working part of the rotary vibration sieve, the screen surface needs to have a certain degree of rigidity and strength to ensure that it can withstand the role of vibration force. At the same time, the screen surface also needs to have a certain gradient, in order to facilitate the screening process of stratified separation. The material of the screen surface is generally selected from high-strength wear-resistant materials, such as steel plate, polyethylene plate and so on. Sieve frame is to support the screen surface part, its main role is to fix the screen surface, rotate the eccentric block and protect the screen surface is not affected by vibration, the screen frame material selection of high-quality steel, with strong bearing capacity and impact resistance. Sieve mesh is a pore for screening materials, its style, size and material should be selected according to the nature of screening materials. Common screen materials are polyethylene, steel wire, glass fiber reinforced plastic, etc., the screen has a single layer and multi-layer difference, multi-layer screen can play a better screening effect. 3. sieve bottom The bottom of the screen is the bottom part of the rotary vibration sieve, which mainly plays the role of collecting and discharging materials, and the layout structure of the bottom of the screen is generally divided into two kinds: direct discharge and collection box discharge. The screen bottom is generally made of high quality steel plate, which has strong impact resistance and wear resistance. Rotary vibration sieve in the work, the material from the inlet into the sieve body, the sieve body constantly through the motor generated by the rotation of the eccentric block and produce vibration, the material followed by vibration and screening. In the screening process, the materials are separated in layers according to the size, and the materials of large and small particles are screened on different screens. Therefore, the working principle of rotary vibration sieve is to rely on the motor to drive the sieve body, eccentric block constantly rotating, so that the sieve surface vibration, so as to realize the material layered separation of a kind of equipment. It is suitable for dry, wet, powder, granular and other kinds of materials screening, with high efficiency, precision, energy saving, widely used in industrial production fields.
