The main difference between built-in ultrasonic shakers and external ultrasonic shakers is where they are located and how they are used.
The built-in
ultrasonic vibrating screen means that the ultrasonic vibrator has the same contact surface as the material, and is usually installed on the bottom or side of the material, and the purpose of screening is achieved by transmitting ultrasonic waves into the material.
The advantage of this method is that it can improve the screening efficiency and reduce the jamming phenomenon, because the ultrasonic vibration can destroy the particles adhered to the screen, thereby reducing the discharge time and increasing the screening efficiency. However, the disadvantage of this method is that the ultrasonic vibrator needs to be in contact with the material, the requirements for wear resistance and corrosion resistance are relatively high, and the casting cost will also increase.
The external
ultrasonic vibrating sieve means that there is a certain distance between the
ultrasonic vibrator and the screen, which is usually installed on the top or outside of the screen frame, and is transmitted to the screen by ultrasonic waves to achieve screening. The advantage of this method is that it can reduce the wear and tear of the screen and the maintenance cost of the vibrator, and it is more suitable for environments prone to corrosion or wear. The disadvantage is that the efficiency of ultrasonic transmission may be reduced, thereby affecting the screening efficiency, and the transmission distance of the vibrator and the matching degree of the screen need to be considered.
To sum up, the built-in ultrasonic vibrating screen has obvious advantages for smaller particles and higher performance requirements, while the external ultrasonic vibrating screen is more suitable for some wide-grained materials and environments that require wear resistance or corrosion resistance.
