A vibrating screen operates on the principle of vibratory motion. It is used in various industries like mining, agriculture, pharmaceuticals, and food to separate materials according to size. Here is a basic overview of how it works:
Screen Assembly: A vibrating screen is typically made up of a rigid frame containing one or multiple screen surfaces or decks. These decks are made of wire mesh or perforated plates.
Vibration Motors: Vibratory motion is generated using vibration motors (or vibrators) that are attached to the screen's frame. These motors induce a shaking movement.
Vibratory Motion: When the motors are turned on, they create a rapid back-and-forth or up-and-down movement. This vibratory motion causes the material on the screen to move.
Screening Process: As the material is fed onto the screen at one end, the vibratory motion causes it to travel along the screen surface. The material is separated accordingly; smaller particles pass through the mesh or perforations, while larger particles continue to travel along the screen surface and are discharged at the end.
Discharge: The separated materials are collected from different outlets depending on their size. Fine particles are collected from the bottom, while larger particles are collected from the end of the screen deck.
Amplitude and Frequency: The efficiency of the screen is influenced by the amplitude (the height of the vibration movement) and the frequency (the number of vibrations per second). These parameters can be adjusted to optimize the screening process for different materials.
By employing vibratory motion, the vibrating screen ensures efficient and accurate separation of materials, enhancing productivity and quality in various industrial applications.
