ultrasonic piezoelectric transducer,
high frequency ultrasonic transducer
Working principle of ultrasonic vibrating screen
Ultrasonic sieving and cleaning system can be combined with various types of circular vibrating sieving machines, so that the sieve is superimposed with high-frequency ultrasonic vibration while receiving low-frequency vibration, so that large particles on the sieve become suspended, thus avoiding clogging the mesh.
Ultrasonic vibrating screen has been successfully applied to silicon carbide (325-500 mesh), electromagnetic powder, anode material, laser powder, carbon powder, powder coating, alloy powder, molybdenum powder, stainless steel powder, tungsten powder, cobalt powder, nickel powder, quartz Screening of flour, malt flour, spore flour, etc.
Ultrasonic vibration sieving solves the problem of sieving materials with strong adsorption, easy agglomeration, static electricity, and light specific gravity. The particle size classification of dry powder can reach 25µm or liquid filtration can reach 10µm.
This ultrasonic sieving technology offers enormous advantages by the sieving, charging and feeding bulk materials and powders.
This technology requires no tuning of mechanical components on the frequency of the ultrasonic generator. This results in a high flexibility for the user and lower cost for the refurbishing of a sieving screen. The ultrasonic components could be connected to almost every sieving screen in operation. For new sieving designs there’s a simple coupling needed for the transfer of ultrasonic energy. By cleaning the screen continuously during the process a significant higher flow rate will be reached.
Applications for this sieve technique could be found in the painting-, coating-, chemical-, food and pharmaceutical industries. Some examples are the sieving of colour pigments, coatings, toner powder, sugar, flour and spices. But also powders for metallurgical or ceramic processes.
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