Rotary vibrating screen and circular tumbler screen are circular screening equipment, but in the working principle, performance characteristics and application of the scene have significant differences, so in the choice of equipment, need to be combined with the characteristics of the material and the production needs of accurate matching.
Core difference: the movement mode determines the essential difference
- The power source of the rotary vibrating screen is the self-powered vibration motor, with the help of the unique design of the upper and lower eccentric hammers, the simple rotary motion is transformed into the three-dimensional composite vibration that intertwines with the horizontal, vertical, and inclined directions. Under the action of the word, the material moves on the screen surface along the trajectory of the expanding involute, showing a dynamic process similar to “throwing – diffusion”.
- circular tumbler screen is to imitate the low-frequency swinging action of artificial screening, which mainly relies on the gear motor to drive, so that the sieve surface produces the same as the artificial sieve like periodic swinging and rotating composite movement, so that the material in the sieve surface at a relatively slow speed for tumbling, layering.
Performance comparison: the trade-off between efficiency and precision
- Screening efficiency: rotary vibration sieve can realize the rapid penetration of materials by virtue of the characteristics of high-frequency vibration. Take the model with a diameter of 1200mm as an example, its processing capacity can reach 5-15t/h. However, too strong vibration will accelerate the wear and tear of the screen mesh, and the screening efficiency for high-density materials will be reduced by more than 30%.
- Although the handling capacity of circular swing screen is relatively low, 3-8t/h, but because of its low-speed movement so that the material in the sun on the surface to stay 2-3 times longer. With the adjustable sieve surface, it can realize more than 95% grading accuracy, especially to meet the strict requirements of medicine, food and other industries for ultra-clean screening.
Energy consumption and service life:
- The power of the vibrating motor of the rotary vibrating screen is usually between 1.5 – 4kW, but due to the influence of high frequency vibration, the service life of the bearings will be shortened to 2000 – 3000 hours, so it needs to be equipped with forced lubrication system to ensure its normal operation.
- circular tumbler screen adopts low rotational speed design, the motor power is 0.75 – 2.2kW, and its key components, such as swing arm, connecting rod, etc., are all through alloy steel quenching treatment, the service life can reach more than 8000 hours, and the maintenance cost is reduced by 40%.
In terms of anti-clogging performance
- Rotary vibrating screen can effectively prevent clogging of the screen holes through the inertia force (up to 5 – 8g) generated by high frequency vibration. However, for viscous materials (e.g. starch, resins), an ultrasonic screen cleaning device is still required to assist in screen cleaning.
- The circular tumbler screen is designed with a throwing angle of 35°- 45°，which enables the material to produce a self-cleaning effect. Together with the removable bouncing ball cleaner, it is possible to process wet materials with a moisture content of up to 8% without screen clogging.
Scenario adaptation: comprehensive coverage from rough screening to fine grading
Rotary vibrating screen applicable scenarios:
Typical case: a calcium carbonate manufacturer used 1500mm rotary vibration sieve, successfully realized the passing rate of 200 mesh materials reached 92%, and the production capacity increased by 40%.
circular tumbler screen Application Scenario:
Typical case: a lithium battery material enterprise used 1200mm swing sieve, realized the precise retention of D50 = 5μm particles, product qualification rate increased to 99.2%.
Selection decision: precise matching from material parameters to process requirements
Through the kinematic simulation analysis, it can be found that the distribution of vibration acceleration field of rotary vibrating screen is not uniform, and the acceleration in the center area is larger than the edge area; while the coverage of the motion trajectory of the circular tumbler screen can reach more than 98%. This essential difference determines that there is an inverse relationship between the screening accuracy and processing capacity of the two, which provides a clear direction of equipment selection for process optimization.
Typical Application Scenarios
- Rotary vibrating screen: In the food field, it has excellent processing ability for fine powder materials, such as flour, starch and such materials, it can accurately classify and screen to ensure the uniformity of the product quality; in the chemical industry, it is also very good at the classification and screening of all kinds of chemical raw materials. In addition, it can also be used in the liquid solid impurities in the filtration process, such as in the edible oil filtration process, can effectively remove the impurities, enhance the purity of edible oil.
- Circular tumbler screen: in the plastics processing industry, commonly used in the screening of plastic particles, to avoid particles in the screening process is damaged; in the field of food processing, for the screening of grain processing is also very suitable to ensure that the integrity of the grain; in the traditional Chinese medicine industry, for the screening of traditional Chinese medicine is the advantage is obvious, especially for those who have very high requirements for the integrity of the material scene, to effectively avoid the particles of the crushing of the situation. It is especially suitable for those scenes that require high material integrity, and can effectively avoid the occurrence of particle crushing.
Summarize
Choosing the right screening equipment is crucial to production efficiency and product quality. With a professional team and rich experience, YINO machinery can provide you with accurate equipment evaluation and perfect solutions. Whether you want to replace the existing equipment, or select screening equipment for the new production line, you may want to contact us, let us work together to help your production, and create more efficient, high-quality production results.
YINuo MACHINERY has a wide range of products, welcome to contact us through the following mailbox, we will be happy to provide you with professional service and support. Email US: info@yxvibratingsieve.com
