The Working Principle of A Vibrating Screen Machine
What are the working principles of a vibrating screen machine?
- Vibration generation
- Screening surface
- Separation process
Overview
- Vibrating screen machines employ the principle of vibration generation to efficiently sort materials, using counterbalance or shaft mechanisms and decks with decreasing hole sizes.
- The screening surface is the main place where materials get separated, and it interacts with the vibrating mechanism to ensure proper operation and efficient separation by size.
- The separation process occurs as the vibrating screen shakes the materials on the screen, allowing smaller particles to pass through the mesh while larger ones remain on top until they are discharged at the end of the screen.
The vibrating screen machine stands out for its efficiency and productivity-boosting features. Mining and construction industries are aware of the advantages of employing a vibrating screen. Because of its design, the machine is among the most productive and efficient types of machinery that operators can use.
But, what is it that makes this innovative machine tick? Its effectiveness lies in the vibrating screen machine’s principles. To find out more about its operation, keep reading.
Vibration Generation
Vibration screen machines apply the principle of vibration generation to sort materials. They work via a counterbalance or a shaft, but unbalanced movements can cause failures. Screens, set in decks with decreasing hole sizes, filter small rocks while retaining larger ones.
However, long-term vibrations can damage decks and cause sudden failures, particularly in larger screens, emphasizing the importance of balanced and monitored vibration in these machines.
There are various types of vibrating screens. Linear screens, using dual motors, move in a linear motion. The hummer screen, a heavy-duty and adjustable vibrating screen, excels at filtering and classifying materials by size. Elliptical screens, ideal for large tasks, employ an oval motion for sorting sand and stone. Moreover, inclined screens, which are flexible and proficient, are designed for sorting quarry, mine, and waste materials.
These are just a few examples of the many different types of vibration screens used in the industry. Their uniqueness lies in their relevance to the principle of vibration generation. Each design caters to specific industry needs, utilizing different motion mechanisms to create vibrations.
Screening Surface
The screening surface is more than just an area on a vibrating screen; it’s the main place where materials get separated. This separation process depends a lot on how the screen and materials interact. The number of vibrators, controlled by a coil, reflects the length of the screening surface and vibrates up to 30 times a second. All this shows how much the vibrating mechanism and the screen surface depend on each other to work properly.
For example, the central vibration mechanism of a hummer screen is key to its operation. It creates necessary vibrations that shake materials down the screen. This shaking separates smaller particles from larger ones, and as the small ones slip through the screen mesh, larger ones move toward the end.
This central feature drives this screen or any type of vibrating screen’s ability to sort materials by size.
Essentially, the screening surface, in conjunction with the vibration mechanism, forms the core of a vibrating screen’s operation. It is integral to the separation and sorting process, catering to the varied sizes of materials. The vibrators, controlled by a coil, help shake the screen properly, separating materials on it. This shows how both parts need to work together for the machine to do its job correctly.
Separation Process
In a vibrating screen, both the screening surface and the vibration creators are symbiotic. A motor moves an uneven weight to create a shaking effect. Once this shaking starts, the screening process begins, jumbling up material on the screen. The screen itself has a component resembling a mesh, possibly made of various stuff like metal or plastic.
As the shudder persists, smaller particles slither through this mesh and make their exit. The bigger ones, though, remain on top, persisting in the shudder until they are finally discharged at the screen’s end.
To keep the vibration from agitating the support structure too much, a vibration-damping device stands guard. Here, the vibrating screen acts like an organized shudder, sorting materials by particle size and managing the extent of vibration to everything else around.
Key Takeaway
Vibrating screens are crucial contributors in many industries, particularly in mining and construction. That’s why it’s important to understand vibration screen machine principles, to get a better picture of how they’re supposed to operate as well as the precision needed for it to achieve its peak performance.
Get in touch with Multico if you’re looking for vibrating screens or any other heavy-duty machinery, such as road rollers and crushers. For material handling equipment, accessories, and replacement parts, we are a one-stop shop. Our products are suitable for a wide range of industries and applications.
