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Types of Vibrating Screens

Nov. 16, 2021

Vibrating screens are mechanical devices that use vibrating screen plates to classify mixtures containing different particles according to their particle size. Depending on the structure and use, vibrating screen manufacturers usually classify vibrating screens into various types.

 

Linear vibrating screens

Linear vibrating screens are driven by double vibrating motors. When the two vibrating motors rotate synchronously and in reverse, the excitation forces generated by the eccentric blocks cancel each other in the direction parallel to the motor axis and overlap into a combined force in the direction perpendicular to the motor axis, so the motion track of the linear vibrating screen is a straight line.


ZKg Series Linear Vibrating Screen

 ZKg Series Linear Vibrating Screen

Working principle: The two motor axes of the linear vibrating screen have an inclination angle in the vertical direction with respect to the screen plate. Under the joint action of the excitation force and the self-weight of the material, the material is thrown onto the screen surface and makes a straight-line jump or forward movement. Through the multi-layer screen plate, a variety of specifications of materials are produced and discharged from the respective discharge port to achieve screening and classification.

 

High frequency vibrating screen

High-frequency vibrating screens are also referred to as high-frequency screens. The high-frequency vibrating screen (HF screen) consists of an exciter, pulp distributor, screen frame, support, suspension spring and screen mesh. The high-frequency vibrating screen is the most important screening machine in the mineral processing industry and is suitable for all wet or dry raw materials.

 

Working principle: Unlike ordinary screening equipment, high-frequency screens use high frequency, which destroys the tension on the surface of the pulp and makes the fine-grained material vibrate at high speed on the screen, speeding up the separation of large density (specific gravity) useful minerals and increasing the probability of materials smaller than the separated particle size coming into contact with the screen holes.

High-Frequency Vibrating Screen

 High-Frequency Vibrating Screen

As a result, the high-frequency screen has better separation conditions so that materials smaller than the separation particle size (especially those with higher specific gravity) pass through the screen aperture together with the slurry to complete the sieving.

 

High-frequency screens offer intense screen vibration applied directly to the screen media, resulting in the highest screen capacity on the market for fine powder removal, chip classification, dry artificial sand, etc.

 

Circular Vibrating Screens

The circular vibrating screen is a new type of vibrating screen with high efficiency in multi-layer screening. Depending on the type of material and user requirements, high manganese steel woven screen plates, perforated screen plates, and rubber screen plates can be used. The circular vibrating screen is installed in a seat type. The angle of the screen surface can be adjusted by changing the position and height of the spring holder.

 

Working principle: The circular vibrating screen box has a circular trajectory. The circular vibrating screen uses inertia exciters to generate vibrations. The spindle fixed to the screen box is driven by the motor to rotate at high speed and the eccentric body mounted on the spindle rotates with it, generating centrifugal inertia forces that cause the screen box, which can vibrate freely, to produce similar vibrations. to the circular track.

 

The circular vibrating screen is widely used for material classification in mining, building materials, transportation, energy, chemical, and other industries due to its long streamline and many screening specifications.

 

 As a coal classification vibrating screen supplier, Anshan takes pride in offering the widest range of sieving and filtration equipment in the industry and combined with innovative thinking and engineering expertise, custom-built solutions can be supplied to suit your unique requirements. If you want to get more information about the types of vibrating screens, welcome to contact us today or request a quote. 

 

 


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