Vibrating Screen are used to separate and classify different sizes of particles in a material. Here In vibratory System I will share with you how the operation of the shaker works.
- Vibration generation
2. Screening surface
3. Separation process
Summarize:
Vibrating screens utilize the principle of vibration generation, using a balanced or shaft mechanism and a platform with a reduced aperture to effectively sort materials.
The screen surface is the main site for material separation and it interacts with the vibrating mechanism to ensure proper operation and efficient particle separation.
The separation process occurs when the vibrating screen vibrates the material on the screen, allowing smaller particles to pass through the screen while larger particles remain on top until they are discharged at the end of the screen.
The basic principle of a vibrating screen is the vibration generated by the screen’s eccentric, or unbalanced, mass, which is driven by a motor.
The screen’s vibration is generated by the centrifugal force of the unbalanced weight on the drive shaft. This vibration causes the material to be separated into different sizes based on the size of the particles.
Vibrating screen machines stand out for their efficiency and productivity. The mining and construction industries are aware of the advantages of using shakers.
Also Read: What is a horizontal centrifuge head
How does the vibrating screen vibrate and operate？
The vibrator is mounted on the screen’s side plate and consists of a motor with an unbalanced weight attached to the end of the drive shaft. The motor drives the drive shaft to rotate, and the unbalanced weight generates the centrifugal force that causes the screen to vibrate.
The vibrating screen uses the principle of vibration generation to sort the material. They work by balancing weights or shafts, but unbalanced movement can cause failure. A screen set on a deck with a gradually decreasing aperture filters small rocks while retaining larger ones.
As the material to be screened is fed onto the screen, the vibrating motion of the screen causes the material to separate into different sizes. The smaller particles fall through the screen’s mesh and are discharged, while the larger particles continue to vibrate until they reach the edge of the screen and are discharged.
Screening surface:
The screening surface is not just an area on the vibrating screen; This is the main place where matter is separated. This separation process is largely dependent on the interaction between the screen and the material. How interdependent the vibration mechanism and the screen surface are to work properly.
For example, the central vibration mechanism of the buzzer screen is the key to its operation. It creates the necessary vibration that separates the larger particles from the smaller ones, which move toward the end as the smaller particles pass through the screen.
This core feature drives the ability of this screen or any type of vibrating screen to sort materials by size.
In essence, the screening surface, together with the vibrating mechanism, forms the core of the work of the vibrating screen. It is an integral part of the separation and classification process to accommodate materials of different sizes.
Separation process:
In a vibrating screen, the screen surface and the vibration source are symbiotic. The motor moves uneven weights to produce a vibrating effect.
As the shaking continues, smaller particles slide through the grid and leave. However, the larger particles are still on top, quivering until they are finally released at the end of the screen.
Uses of vibration damping device:
The vibration damping device is used to reduce the vibration transmitted to the ground and to the supporting structure of the screen, which can reduce noise and prevent damage to the screen.
The composition of the vibrating screen:
The Vibratory System is made up of a screen mesh or a sieve surface, a vibrator, and a vibration damping device. The screen mesh is made up of wires or synthetic fibers, and the sieve surface can be made of various materials, such as metal, rubber, or plastic.
In summary, the working principle of a Vibratory System involves the vibration generated by an eccentric or unbalanced mass, which is driven by a motor. The vibration separates the material into different sizes based on the size of the particles, and the vibration damping device reduces the vibration transmitted to the ground and supporting structure.The ultimate purpose of the working principle of the vibration screen is to achieve screening.
What kind of vibrating screen we have produce?
AURY have produce a kind of equipment use for coal mining,they are horizontal vibrating screen,banana screen,flip-flop vibrating screen,sieve bends,grizzly feeders,circular vibrating screen,high-frequency screen,centrifuges and cyclone,ect.
What are our product features?
● Structure: compact size, high rigidity, high strength, even stress distribution, high safety factor.
● Vibration: avoids natural frequency of the screen structure to eliminate damage due to resonance.
● Long life: The design life of the screen is >10 years, and exciter bearing life typically >60000 hours.
● Light weight, low power consumption, large throughput capacity, high efficiency typically >95%, high amplitude(9-12mm),G forces of >5G are reliably achievable. The acceleration of Aury Flip-flop screens can 50 G, and 13-18mm amplitude, allowing the screen to handle sticky or fine coal 3-6mm, without blinding or clogging of screen panels.
● Low noise (Typical “Free Field” noise < 80dbA at 1 meter).
● Screens are designed to operate continuously for long periods with only simple routine maintenance.
● Comprehensive screen testing and dynamic analysis performed before shipment.
● Vibratory System offer Complete range of screens to handle almost all applications and capacities.
● Vibratory System are Easy to operate and maintain, safe to use, competitive pricing, and efficient performance, with professional after-sales service and spare parts support.
Advantages of vibrating screen:
The aggregate screen uses the vibration of the vibration motor as the vibration source, so that the material is thrown up on the screen and moves forward in a straight line. Too large and too small sizes are discharged from their respective outlets. Linear vibrating screen (linear screen) has the advantages of stable and reliable, low consumption, low noise, long life, stable vibration shape and high screening efficiency. GX type screening equipment is a new type of screening equipment, widely used in mining, coal, smelting, building materials, refractory materials, light industry, chemical industry and other industries.
