The Tin Powder Screening Problem for Ultrasonic Vibration Sieve

1.The output powder efficiency of ultrasonic vibration sieve is low, there is no finish powder or less after sieving, if this kind of situation appears, we need to check the performance of ultrasonic acoustic, whether it is due to the poor quality, resulting in screen mesh blockage, causing the finished powder cannot be sieved out.
2.Larger and smaller size of tin powder exceed the standard, when confronted with the problem, we first need to check screen mesh of ultrasonic vibration screen, uneven powder size mostly may be due to poor quality of screen mesh, aperture size is not same when manufacturers make the screen mesh, or some parts of screen mesh are damaged after long time use, here it requires us select standard and qualified screen mesh from the regular manufacturers, regular check of screen damage is also required.

3. The oxygen content of tin powder is excessive of the standard, it is mainly because of poor sealing ,which lead to air leakage, it is necessary to ensure good sealing and check whether the sealing ring and other sealing place are qualified or not, vibration sieve rubber sealing ring after long time use, it will occur deformation or a series of problems which results in the increase of oxygen content in tin powder. Therefore, check the sealing ring regularly, especially in the case of high temperature in the summer.
4. Unstable ultrasonic vibration screen will cause the screen mesh heating and screen plugging seriously, before using ultrasonic vibration sieve, please select and set the vibration motor power well, check the equipment adjustment flexibility and check if discharging outlet is smooth or not.

 

For points listed above, you will find the tin screening is a impregnable problem. As a senior research, development and production manufacturer, Henan Pingyuan Mining Machinery Co.,Ltd has devoted to solve all the screening problem, we are sure we will be the best choice, more information please click: www.pkmachinery.com

Difference between ultrasonic vibration sieve and ordinary rotary vibrating screen

Compared with rotary vibrating screen, ultrasonic vibration sieve is equipped with a ultrasonic generator, with self-cleaning function ,the mesh is not easy to block, it is no need to add bouncing balls and other anti blockage device. Ultrasonic vibrating screen is particularly suitable for screening fine powder and light weight material with mesh size larger than 300 mesh. 

 

Ultrasonic screening system is composed of ultrasonic resonant power supply, oscillator and resonance ring. The ultrasonic resonant powder supply will generate longitudinal oscillating wave which will transmit to the resonance ring to produce a resonance, and then the vibration will be transmitted to the screen mesh evenly through the resonance ring. While material on the screen mesh does three dimensional vibration movement in the low-frequency, it will overlap the ultrasonic vibration which can prevent the mesh plug and improve the screening yield and screening quality. 
The performance characteristics of ultrasonic vibrating screen: it can sieve the heavy, light, ultra-fine, strong adsorption powder (almost all of the powder is effective) that ordinary rotary vibrating screen can’t sieve. Compared with ordinary rotary vibrating screen, the material passing rate of ultrasonic vibrating screen will be increased by 50%-400%, the performance is as follows:
(1). Reduce screen mesh cleaning time;
(2). No pollution of powder that generated by bouncing ball and other auxiliary materials;
(3). Keep the screen mesh size, stable precision screening; 
(4). Reduce the material stuck on screen mesh size;
(5). Reduce screening frequency.