The rectangular gyratory sifter is a highly efficient screening equipment, which is used for screening and classifying various granular and powdery materials.
The composition structure of the rectangular gyratory sifter:
- Sieve box: It is the main working component of the rectangular gyratory sifter, usually welded by steel plates, and is used to carry materials and install the sieve mesh. The side plates and bottom plate of the sieve box need to have sufficient strength and stiffness to withstand the impact and vibration of the materials.
- Sieve mesh: It is a key component for realizing the screening of materials. Generally, it is woven by stainless steel wires. According to different screening precision requirements, sieve meshes with different mesh numbers can be selected. The sieve mesh is fixed on the sieve box through a tensioning device to ensure that the sieve mesh remains taut during the working process, so as to improve the screening efficiency and quality.
- Drive device: It is mainly composed of a motor, a speed reducer, an eccentric wheel, etc. The motor drives the eccentric wheel to rotate through the speed reducer. The rotation of the eccentric wheel makes the sieve box produce a reciprocating motion, so that the materials make a planar gyratory motion on the sieve surface, realizing the screening of the materials.
- Support device: It includes a support frame and vibration damping springs. The support frame is used to support the sieve box and the drive device to keep them in a stable working state. The vibration damping springs are installed between the sieve box and the support frame, playing the role of buffering and vibration damping, and reducing the impact of vibration on the equipment and the surrounding environment.
- Feeding device: It is located at one end of the sieve box and is used to evenly feed the materials to be screened into the sieve box. The feeding device usually includes a feeding hopper and a feeder. The feeder can adjust the feeding speed and flow rate of the materials as needed to ensure the stability of the screening process.
- Discharging device: It includes the oversize discharge port and the undersize discharge port. The oversize discharge port is located at the other end of the sieve box and is used to discharge materials larger than the sieve hole size; the undersize discharge port is located at the bottom of the sieve box and is used to collect materials smaller than the sieve hole size that pass through the sieve mesh.
The characteristics of the rectangular gyratory sifter:
- Rectangular gyratory sifter has high screening efficiency: The movement trajectory makes the materials close to the mesh surface and move in an elliptical curve, with a long residence time, good screening effect, and it can combine multiple movement modes to improve the screening efficiency.
- High precision: It can effectively separate materials with different particle sizes and achieve high-precision screening. The screening precision of some models can reach 90%-95%.
- Large processing capacity: Compared with traditional screening equipment, such as vibratory screens and linear screens, the processing capacity per unit area of the rectangular gyratory sifter can be up to 5 times higher.
- Convenient maintenance: It is equipped with an automatic tensioning and automatic cleaning sieve mesh installation system. The screen changing structure is simple and fast, and the screen can be changed within 20 minutes, which can also extend the service life of the sieve mesh.
- Good environmental protection performance: It has a fully enclosed structure, and the dust does not fly. With the use of unbalanced weight balance, it has small vibration and low noise, meeting the environmental protection requirements.
The application industry of Rectangular gyratory sifter:
It is widely used in industries such as chemical engineering, building materials, sand and gravel, metallurgy, mining, feed industry, food industry, etc. It can be used for the screening of materials such as quartz sand, fracturing sand, petroleum coke, soda ash, salt, resin, compound fertilizer, urea, feed, reduced iron powder, zirconium oxide, etc.
