1 The block eccentricity is used as the exciting force, and the exciting force is strong. 2The sieve beam and the screen box are made of high-strength bolts, the structure is simple, the maintenance is convenient and quick; 3The tire coupling is used, the connection is flexible, and the operation is stable; 4Using small amplitude, high frequency and large dip angle structure, the machine has high screening efficiency, maximum processing, long life, low power consumption and low noise. According to the structure and working principle of the screening machine, there are roughly the following categories: 1. The fixed screen working part is fixed, and the material is screened by sliding the material along the working surface. Fixed sieves are one of the more widely used in concentrators and are generally used for pre-screening before coarse or medium crushing. It is simple in structure and easy to manufacture. It does not consume power and can directly discharge the ore to the screen surface. The main disadvantages are low productivity and low screening efficiency, generally only 50-60%. 2. The roller screen working surface is composed of a horizontally arranged rolling shaft with a plate on the shaft, and the fine material passes through the gap between the rollers or the plates. The bulk material is moved by the roller to one end and discharged from the end. Such sieves are rarely used in concentrators. 3. The working part of the cylindrical sieve is cylindrical, and the whole sieve rotates around the axis of the cylinder, and the axis is generally installed with a small inclination angle. The material is fed from one end of the cylinder, the fine grade material is passed through the screen opening of the cylindrical working surface, and the coarse material is discharged from the other end of the cylinder. The rotary screen has a low rotation speed, stable operation and good dynamic balance. However, the mesh hole is easy to block, the screening efficiency is low, the working area is small, and the productivity is low. The concentrator rarely uses it for screening equipment. 4. The plane motion sieve body is a plane that oscillates or vibrates. According to its plane motion trajectory, it is divided into linear motion, circular motion, elliptical motion and complex motion. Shaking screens and vibrating screens fall into this category. Multifunction Cross Switch Screwdriver,Double Head Screwdriver,Cross Flat Screwdriver,Plastic Handle Screwdriver Yucheng Weisite Measuring Tools Co., Ltd , https://www.wsttools.com