High frequency screen

Product Description

High frequency screen is an efficient screening equipment for fine particle materials. It usually has a high vibration frequency, generally can reach more than 000 times/minute, and some can even reach thousands of times/minute, while the amplitude is relatively small, generally around 0.5-2. The high frequency screen mainly consists of screen box, exciter, suspension device, etc. When working, the screen box is made to produce high frequency vibration through exciter, and the materials on the screen surface make high frequency small amplitude jumping, so as to achieve the separation of particles with different particle sizes. Particles smaller the screen hole size pass through the screen net and become screen undersize, while particles larger than the screen hole size remain on the screen surface and become screen oversize High frequency screen has the advantages of high screening efficiency, large processing capacity, high precision, compact structure, low energy consumption, etc., and is widely used in coal mining, metallurgy, chemical industry, building materials and other industries for the classification, dewatering, desludging and other operations of fine particle materials.

Working principle

High frequency vibration is generated by high frequency vibration motor or other excitation devices, which makes the screen box and screen surface reciprocate with frequency and small amplitude. When the material is fed onto the screen surface, under the action of high frequency vibration, the particles in the material produce strong jumping and loos. The particles smaller than the screen hole size quickly pass through the screen holes and become the screen under product under the action of their own gravity and the vertical component of vibration, while the particles larger than the screen hole size are continuously pushed and moved on the screen surface and finally become the screen over product discharged, so as to realize efficient separation of the material according to the particle size. At the same time, since the high frequency vibration can effectively reduce the blockage of fine particles to the holes, the efficiency and quality of screening are further improved.

Product features

High screening efficiency: The high-frequency vibration enables the particles of the material to be separated by size quickly and thoroughly. Particles smaller than the screen holes can pass through the screen holes rapidly, and the screening efficiency usually reaches more than 80%, which is significantly higher than that of ordinary screening equipment.

Large processing capacity: Thanks to the high-frequency vibration and a reasonable structural design, it can handle a large amount of materials within a unit of time, meeting the needs of large-scale production operations. The processing capacity can reach dozens of tons or even hundreds of tons per hour.

High screening accuracy: It can achieve precise classification of fine-grained materials and effectively separate particles of different sizes. It can accurately classify materials to as fine as 0.074mm or even finer, meeting the requirements of industries with high demands for product particle sizes.

Not easy to clog: The high-frequency vibration can keep the materials on the screen surface in a loose state, reducing the agglomeration of particles and the clogging of screen holes. Even when processing materials with relatively high viscosity, it can still maintain a good screening effect.

Compact structure: With a reasonable overall structural design, it occupies a small floor area and has a relatively low equipment height, making it easy to install and maintain. It can be flexibly applied to various production sites, effectively saving space and construction costs.

Low energy consumption: It uses high-efficiency driving devices such as vibration motors. While ensuring the screening effect, the energy consumption is relatively low, and the operation cost is low. Compared with traditional screening equipment, it can save 30% - 50% of energy.

Long service life: The main components are made of high-quality wear-resistant materials, and the screen mesh has high strength and wear resistance. Key components such as the exciter have stable performance. After proper maintenance, the equipment can operate stably for a long time, reducing the frequency of equipment replacement and repair.

High degree of automation: It can be automatically linked with other production equipment. Remote monitoring and operation can be realized through the control system, and parameters such as vibration frequency and amplitude can be automatically adjusted according to production requirements, reducing manual intervention and improving production efficiency and quality stability.