Vibratory screens are one of the main types of industrial screening equipment. There are several mechanical screening solutions available across the solid waste management, recycling, and aggregate industries; however, vibrating screens offer a number of unique advantages that make them a first-line option for a large variety of industrial applications.
Lower Operational Costs
Vibrating screens are known for their robust design. Because the operating principle is relatively simple, and the design of modern machines is streamlined, vibrating screens can generally be purchased for less than other types of screeners. This results in a lower upfront investment.
Additionally, vibrating screens are able to operate with lower energy consumption than more complex machinery, in turn saving businesses money in ongoing operational costs. Lastly, because higher frequency vibrations are transferred directly to the screening surface, only the screen media needs to be regularly replaced. This can help to save on maintenance and repair costs often posed by other screening equipment choices.
Less Maintenance and Downtime
Maintenance and downtime as a result of repairs or equipment failures can lead to a major loss in both productivity and profit. Many types of screens undergo significant wear and tear, particularly in demanding applications like aggregate processing. However, vibrating screens offer the advantage of less maintenance and downtime. This is a result of their design, which centers around delivering vibratory forces only to the screening surface.
In addition, quality vibrating screening equipment is designed and manufactured so that other parts of the machine are minimally affected by vibration forces. In more sophisticated designs, the machine is constructed to allow for adequate absorption and dampening of vibrations outside of the screen media. This results in fewer moving parts and overall less wear and tear to the machine, further reducing both downtime and maintenance.
Higher Screening Efficiency
While there is a wide range of screening equipment available on the market, vibrating screens offer an ideal choice when an operation requires a simple solution that can handle a higher feed flow. In fact, vibrating screens work most efficiently with a consistently higher flow rate. For other types of screening equipment, the same material throughput could lead to screen blinding or a backflow of materials that requires a slower feed.
Working Principle
The vibration is accomplished by eccentric weights on the upper and lower ends of the motion-generator shaft. The direction of the eccentric weights can change its rotational mode,rotation of the upper weight creates vibration in the horizontal plane, which causes material to move across the screen cloth to the periphery,while the lower weight acts to tilt the machine, causing vibration in the vertical and tangential planes. The trajectories of materials on the screen can be changed by adjusting the phase angle of upper and lower weights.
Application
Rotary Vibrating Screen is widely used in many industries, covering food, chemical, ceramic, metallurgy, pollution treatment and so on, dealing with various kinds of materials.
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