Ultrasonic sifter is widely used in food, medicine, chemical and other industries. It is a new type of screening equipment specially designed for high-fine fine powder screening. In order to achieve better screening effect, it is necessary to adopt some methods to improve ultrasonic sifter accuracy of the sieve, how to improve the screening accuracy of the ultrasonic sifter? Dahan manufacturers summarized the following solutions for users' reference.
The vibration motor is powered by the ultrasonic sifter. The vibration excitation force determines the output of the ultrasonic sifter and the screening accuracy. Therefore, if you want to improve the screening accuracy, you can adjust the motor excitation force to improve the screening accuracy. Effect. The greater the exciting force, the greater the vibration intensity of the vibrating screen, and the greater the force of the screen facing the material, which is beneficial to the screening of the material, the yield is increased, the plugging rate is decreased, and the screening precision of the ultrasonic sifter is higher. . However, everyone is reminded that the vibration motor excitation force adjustment should be moderate and reasonable. When the excitation force is too small, the passing rate and the breaking rate effect are poor, which affects the screening efficiency of the equipment. When the excitation force is too large, it will increase. The friction of the eccentric block at both ends of the large vibration motor shaft is easy to cause certain damage to the vibration motor and reduce the service life of the motor in the case of high-speed rotation.
The ultrasonic system is the most important component of the ultrasonic sifter, and is mainly composed of an ultrasonic vibration power source and an ultrasonic transducer. In general, the higher the output power of the ultrasonic system, the higher the frequency of the mechanical wave generated, the greater the probability that the material will pass through the sieve surface and the sieve, and the better the screening accuracy. But the higher the power, the better, because with the increase of the power of the ultrasonic sifter, the damage of the screen will be accelerated, and the service life of the screen will be shortened. Therefore, the output power of the ultrasonic system is satisfied when the user's screening accuracy is satisfied. The lower the better.
For materials that are difficult to be sieved, the shorter the residence time of the material on the sieve surface, the more unfavorable the screening of the material, because the difficult sieve material cannot be dialyzed through the sieve in a short time, resulting in low productivity. Between this, the Dahan manufacturer installed a gate at the ultrasonic sifter treatment port to temporarily prevent the material from being discharged by closing the gate, increasing the contact time between the material and the screen surface, and improving the screening precision of the ultrasonic sifter.
The screen is a component that directly contacts the material, and the material is mainly sieved and classified. The damage of the screen is directly related to the screening precision of the ultrasonic sifter. If the screen is slack, the material and the screen will be less elastic, which will affect the screening accuracy. Therefore, after the vibrating screen is used, the user needs to check the tightness of the screen mesh. If there is any problem, the screen should be tensioned in time.
In order to obtain a better screening effect, the user also needs to pay more attention to the feeding material, usually requiring uniform feeding. If the material is too fast or too much, the material will accumulate on the screen surface, the material layer is too thick, and the material will not be fully screened, which will not meet the screening accuracy requirements. Dahan Machinery reminds the new and old users to feed the way. Uniform, and feeding to the middle part of the screen surface, the material is evenly spread on the screen surface, and the screening precision will be improved only when the material layer is thin.
For materials with a large water content, the viscosity is large, which will affect the screening accuracy and screening effect of the ultrasonic sifter. If you want to achieve better screening results, you can dry the material and sift it, so that the material will not be blocked during the screening process, which will affect the screening accuracy. Here we need to remind that the ultrasonic sifter cannot be used to screen materials with a large water content.
Therefore, in the actual production process, the user needs to make appropriate adjustments to the ultrasonic sifter according to the actual conditions of the material and the screening requirements, and more precise screening of the materials to create greater value!
Contact one of our knowledgeable sales engineers to recognise how to improve your production process.
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