Vibrating Screen is widely used for grading and screening materials in the following fields: minerals, quarry, building materials, water conservancy and hydropower, transportation, chemical industry, smelting and so on. For material quality of screen mesh is changeable, the application is quite extensive.
SBM quarry equipments includes primary crushing machines such as PE series jaw crusher, secondary crushing machines such as impact crusher, fine crushing equipments such as cone crushers and sand making machines such as vsi crusher. Our machines contain not only these stationary crushers . But also portable crushing station. For example crawler type mobile crusher and portable crushing plant.
YKN series circular vibrating screen adopts N series block eccentric vibration exciter which can release big strength and large exciting force. The intermediate transmission connection adopts flexible connection so that the equipment amplitude becomes larger but the vibration is stable. Meanwhile, the passing capacity and screening efficiency of this vibrating screen increase obviously, too.
Classical Structural Design YKN inherits classical structural design of traditional vibrating screen. The whole structure is simple so the equipment installation and adjustment, parts replacement and maintenance get easy and convenient. Unique Vibration Exciter Compared with the axis eccentric vibration exciter, the external block eccentric vibration exciter used by YKN series circular vibrating screen has more powerful exciting force. In addition, this design can also easily realize necessary adjustment of the amplitude and frequency of vibrating screen, so as to satisfy different using requirements. Perfect Transmission Device During actual uses, traditional circular vibrating screens usually vibrate violently when starting and stopping, which poses threat on life expectancy of motor and belt. So, when designing YKN series, SBM adopts advanced V-belt. Combining with flexible connection technology, the screen won't transmit axial force, thus machine operation getting more stable. Finite Element Analysis Technology & Advanced Processing Technology In the design of YKN series circular vibrating screen, we adopt finite element analysis technology to optimize the calculation of screening box, so as to make the load-carrying situations of the whole screening box and side plate more reasonable. In addition, as for processing side plate of screening box, we use large-scale machine tool to directly bend the plate, which effectively avoids the risk of cracking caused by welding.
YKN inherits classical structural design of traditional vibrating screen. The whole structure is simple so the equipment installation and adjustment, parts replacement and maintenance get easy and convenient.
Compared with the axis eccentric vibration exciter, the external block eccentric vibration exciter used by YKN series circular vibrating screen has more powerful exciting force. In addition, this design can also easily realize necessary adjustment of the amplitude and frequency of vibrating screen, so as to satisfy different using requirements.
During actual uses, traditional circular vibrating screens usually vibrate violently when starting and stopping, which poses threat on life expectancy of motor and belt. So, when designing YKN series, SBM adopts advanced V-belt. Combining with flexible connection technology, the screen won't transmit axial force, thus machine operation getting more stable.
In the design of YKN series circular vibrating screen, we adopt finite element analysis technology to optimize the calculation of screening box, so as to make the load-carrying situations of the whole screening box and side plate more reasonable. In addition, as for processing side plate of screening box, we use large-scale machine tool to directly bend the plate, which effectively avoids the risk of cracking caused by welding.
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Many mine owners are meeting many troubles like vibrating screen cant reach the expected processing capacity or low screening efficiency in the process of production. As an important equipment, the screening efficiency of vibrating screen will directly affect the finished product quality and investment cost.
Generally, the screening efficiency of a vibrating screen is related to several factors such as material nature, equipment structure and various performance parameters. Apart from the basic requirements of choosing vibrating screen (material nature and equipment structure), today we mainly analyze 5 important performance parameters which relate to the efficiency of vibrating screen: There are amplitude, vibration frequency, vibration direction angle, screen surface inclination Angle and projectile Angle.
In general, the larger the size of the vibrating screen, the larger the amplitude selected. Thats because the larger amplitude means there will be less of screen hole plugging, this will be more conducive to ore screening stratification and realize a better screening capacity. But it should be noted that: if the amplitude of the vibrating screen is too large, strong vibration action may damage the equipment itself.
The vibration screen amplitude is usually determined by the particle and nature of ore. For example, when the ore particles are small and moist with a certain viscosity, we need to use vibrating screen with low frequency and large amplitude.
In addition, the corresponding amplitude and frequency should also be acted for different screening stages. For example, screening operation before selection generally use vibrating equipment with low frequency and large amplitude, and vibrating screen with high frequency and small amplitude are used in dewatering and desorption operations.
The vibration frequency has a direct effect on the run-out state of ore particles on the screen. Vibration frequency that is too high or too low is not beneficial to the screening efficiency. Studies have shown that no matter what kind of screening is carried out on the vibrating screen, it is an ideal option for vibration frequency to maintain between 850 -1000 times a minute.
Under the same vibration intensity, if the frequency of vibrating screen is too low, the weight of the eccentric block of the vibrator will increase, which is not economical. On the contrary, higher frequency can greatly affect the speed of ore; this will decrease the processing power.
Therefore, vibration frequency can't be randomly adjusted. In order to make the vibrating screen play the ideal performance, user should adjust to the vibration frequency according to actual situation.
The screen surface inclination Angle refers to the angle between the screen surface and the horizontal plane, the magnitude of the Angle is related to the vibrating screen processing capacity and screening efficiency. When the screen surface inclination Angle increases, the movement speed of ore particles on the screen surface will be faster, and the processing capacity will be increased, but at the same time, the ore particles will stay on the screen surface for a correspondingly shorter time, thus affecting the screening efficiency, and vice versa.
The vibration direction angle refers to the angle between the screen motion direction and the screen surface. When users decide to adjust the vibration direction angle, they should consider the nature of the ore being sifted firstly. For the ore with high density, small particle or easily crushed, it should be handled by vibrating screen with big vibration direction angle. For ore with high water content, strong viscosity or wear resistance, the vibration direction angle should be adjusted to small.
In actual production, most linear vibrating screens adopt vibration direction angles of 30, 45 and 60. Thats because this kind of angle can not only adapt to various screening performance, but also obtain the best moving speed and screening efficiency.
According to the screening theory and practice, the magnitude and strength of the projectile Angle of the vibrating screen have a direct influence on the screening ore. When the ore projectile intensity increases, the inertia force is also increased; thus the ore can be thrown higher, which is more conducive to the ore handling. However, too much projectile intensity will inevitably affect the screen box, making it premature damage. Therefore, user should consider the strength of vibration screen box structure to determine the projectile Angle.
It is inevitable that there will be some differences between different types of vibrating screens in the actual processing. So we suggest that that each mine owner should find the equipment manufacturer with overall qualification to buy the appropriate vibrating screen, and determine the parameter values according to the actual conditions, ensuring to obtain the ideal screening efficiency of vibrating screen.
SBM's S5X Vibrating Screen is of high vibration intensity. Under the same specifications, it has larger processing capacity and higher screening efficiency compared to traditional screens. It is particularly applicable to heavy type, middle type and fine screening operations, and it is the ideal screening equipment for primary crushing, secondary crushing and finished materials.
S5X Vibrating Screen adopts the SV super-energy vibration exciter. The vibrating strength can reach the international advanced level. Further, the throughput, screening efficiency and capacity can get improved greatly. What matters is that users can adjust the vibration amplitude quickly by adding or reducing standard weight balancing blocks of the vibration exciter.
The screen box of S5X Vibrating Screen adopts the FEM simulation analysis, which allows the ideal stress state of the side plate. There is no welded point on the side plate, so it is free from risks of fracture. All connections among structural components of the screen box adopt torsional shear bolts which has stronger strength than the ring-grooved lock bolts.
The vibration exciter and the screen box frame of S5X Vibrating Screen use modular structures. If there is a need for replacement, the modular vibration exciter can be taken down from the screen box to be disassembled quickly. The vibration exciter adopts special labyrinth seal design and grease lubrication which ensure its stable operation. Besides, spare parts have higher degree of general utilization. So, it is easier and quicker for later replacement of spare parts.
S5X Vibrating Screen adopts flexible drive device, which can protect the motor from strong shock and free the torque transmission from the axial force, so that the operation of the equipment is more stable. The screen is supported by rubber springs which have long service life and strong corrosion resistance, bringing smooth operation, low noise and less impact on the foundation.
SBM has dozens of CNC (Computer numerical control) machine production lines. From steel plates' cutting, bending, planning to final painting, all steps can be controlled numerically. High processing precision assures that key parts have higher standards.
SBM, as a prominent enterprise integrating machine production and sales in mining machinery industry, is dedicated to be responsible for every product. Meanwhile, SBM always makes every effort to offer customers comprehensive technical services and sufficient spare parts to let them be free from worries about project operation.
S5X Vibrating Screen adopts rubber springs as elastic supporting components and the SV super vibrator as the source of vibration. The excitation force, generated under the rotation of the eccentric block, makes the screen box do reciprocating motions. When the vibrating screen is running, materials continuously bounce and roll over on the inclined screen surface. By repeatedly comparing with the screen holes, materials smaller than the screen size would be sieved out while larger ones retain on the screen surface. This is the whole screening process.
Product pictures and parameters about models, data, performances and specifications on this website are for reference only. There is a chance that SBM may make changes on above-mentioned information. For specific messages, please refer to the real objects and user manuals. Without special instructions, SBM keeps the right to explain all data involved in this website.
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Ore beneficiation equipment, sand making equipment, crushing equipment and powder grinding equipment, which are widely used in various industries such as metallurgy, mine, chemistry, building material, coal, refractory and ceramics.