A vibrating screen is a mechanical device used to separate materials based on size and shape. It consists of a screen surface that vibrates, allowing smaller particles to pass through while larger ones are retained. This process is commonly used in industries like mining, construction, and recycling to sort materials efficiently. The vibration is typically generated by electric motors or exciters, which create a motion that helps move the materials across the screen. Different types of screens, such as linear screens and circular screens, are designed for specific applications, enhancing the effectiveness of the separation process.