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Production Market
Our products have been exported to Russia, USA, France, Namibia, Saudi Arabia, Thailand, Uruguay, Singapore, Spanish, Germany, Cyprus,Botswana, Korea, Switzerland,Newzeland, Pakistan, Brazil, Malaysia, Spanish, Peru, Chile,Turkey, Portugal, etc.
Our produck
Our produck have Vibrating Screen, Screw Conveyor, Belt Conveyor, Vacuum Conveyor, Bag Dumping Station.
Quality Management
We are qualified with ISO quality management system and CE certificate, all the main components are fine manufactured in our own factory with strict inspection, and quality is always our priority.
Higher screening accuracy
Ultrasonic Vibrating Screen is an ultrasonic screening system installed on the basis of rotary vibrating screen. The vibration frequency of ordinary vibrating screen is 1460 times per second, while the Ultrasonic Vibrating Screen is 36,000 times per second, which truly realizes the combination of sound wave and vibration frequency double vibration. It is this low-amplitude, high-frequency ultrasonic vibration wave (mechanical wave) that makes the Ultrasonic Vibrating Screen suitable for sieves from 20 microns to 300 microns to separate powders, especially for materials that are difficult to sieve.
Do not block the network
Compared with ordinary vibrating screen, Ultrasonic Vibrating Screen adopts unique JHC ultrasonic screening system, so there is no need to add other screen cleaning devices, and it has self-cleaning function. The functional mesh is not blocked.
Large output
Ultrasonic Vibrating Screen is equipped with ultrasonic transducer, which can speed up the separation of agglomerates, high static electricity, high fineness, high density, light specific gravity, and adsorbed materials, thereby increasing the sieving amount of the vibrating screen, decomposing adhering materials, reducing the on-screen materials, and the ratio The screening rate of the vibrating screen without ultrasonic wave is increased by 5-20 times.
To sum up, Ultrasonic Vibrating Screen has higher precision and output than ordinary vibrating screen, and it is not easy to block the screen, and the advantages are more significant.
|
Materials |
Ordinary Vibrating Screen |
Ultrasonic Vibrating Screen |
Test model |
||
|
Mesh number |
Test results |
Mesh number |
Test results |
||
|
Silicon carbide |
500 |
Unable to sieve |
500 |
1000kg/h |
1000mm |
|
Tungsten carbide powder |
600 |
No fine powder is sifted out in 15 minutes |
600 |
30kg/h |
1000mm |
|
Vitamin C powder |
100 |
1kg/h |
100 |
120kg/h |
1000mm |
|
Pollen |
400 |
No fine powder is sifted out in 15 minutes |
400 |
Approximately 20% fine powder can be sieved out in 15 minutes, and can be more finely and effectively classified |
600mm |
|
NdFeB powder |
300 |
30% sieve residue in 30 minutes |
300 |
7% residue on sieve in 30 minutes |
600mm |
|
Nickel and cobalt powder |
325 |
Screened 3 times to meet the requirements |
400 |
The sieve meets the requirements once |
800mm |
|
Phosphor |
500 |
Sieving capacity 90kg/h |
500 |
Sieving capacity 300kg/h |
800mm |
|
Zinc powder |
325 |
Sieving capacity 68kg/h |
325 |
Sieving capacity 300kg/h |
800mm |
|
Iron powder |
100 |
Sieving capacity 96kg/h |
100 |
Sieving capacity 300kg/h |
800mm |
|
Seasoning powder |
60 |
Sieving capacity 500kg/h |
60 |
Sieving capacity 1000kg/h |
1000mm |
|
Resin powder |
200 |
Sieving capacity 340kg/h |
200 |
Sieving capacity 745kg/h |
1000mm |
|
Sweet potato starch |
200 |
Sieving capacity 400kg/h |
200 |
Sieving capacity 1500kg/h |
1000mm |
|
Kaolin |
200 |
Sieving capacity 38kg/h |
200 |
Sieving capacity 200kg/h |
1000mm |
The ultrasonic vibrating screen is equipped with an ultrasonic device on the basis of the rotary vibrating screen, which can effectively solve the problem of screen blocking when the ordinary vibrating screen is sieving powder. The screening accuracy and output are higher.
Determine the number and characteristics of materials
When purchasing an ultrasonic vibrating screen, you should choose according to the fineness of the material. The ultrasonic vibrating screen is mainly for high-precision powder materials or materials that are easy to block the network. The screening effect of fine powder is very obvious. Ultrasonic vibrating screens can be selected for materials with a mesh number of 300 or more or materials with easy blocking, adsorption, sticking, static electricity, light specific gravity and other materials. However, linear vibrating screen or rotary vibrating screen can be selected for some easy screening below 300 mesh
Determine the output
The output determines the choice of the ultrasonic vibrating screen model. Dahan ultrasonic vibrating screen models include DHC400, DHC600, DHC800, DHC1000, DHC1200, DHC1500, DHC1800, etc. The suffix number represents the screen size of the screen, and the screen surface diameter is directly related to Output, so you must clarify your own requirements for output when selecting a model.
The material of the screen
The material of Dahan ultrasonic vibrating screen can be divided into two types: one is 304 stainless steel for the contact part with the material, and the other is 304 stainless steel for the whole machine. The choice of material can be determined according to the screening material or industry. The second type is generally used in industries that have strict hygiene requirements such as food and medicine.
Accessories selection
The main accessories of ultrasonic vibrating screen are: ultrasonic power supply, ultrasonic transducer, vibration motor. Choosing different quality or types of accessories plays a very important role in the use of ultrasonic vibrating screens. For example, the motor of Dahan ultrasonic vibrating screen can choose ordinary or explosion-proof motors. Explosion-proof motors are generally used in occasions with large amounts of dust to avoid dust explosions. Generally, the selection of screening environments Rotate the ordinary motor.
Ultrasonic vibrating screen is composed of ultrasonic power supply, transducer, resonance ring and connecting wire. The high-frequency electrical oscillation generated by the ultrasonic power supply is converted into high-frequency sinusoidal longitudinal oscillation wave by the transducer. These oscillation waves are transmitted to the resonance ring to make the resonance occur, and then the vibration is uniformly transmitted to the screen surface by the resonance ring. The materials on the screen mesh are subject to low-frequency cubic vibration and ultrasonic vibration at the same time, which can not only prevent mesh plugging, but also improve the screening output and quality.The function of ultrasonic system in vibrating screen:
The function of ultrasonic system in vibrating screen
Solve the problem of blocking the screen: the screen frame is subjected to a high-frequency low amplitude ultrasonic vibration wave from the transducer while doing three-dimensional operation under the action of the vibration motor, which makes the materials suspend on the screen surface at low altitude, thus effectively solving the problem of blocking the screen;
Secondary crushing
Some materials will cause problems in the troupe when they are affected with moisture or static electricity due to friction. Under the action of ultrasonic wave, the materials caked in the troupe can be crushed again to increase the output;
Screening of light and heavy materials
When screening light and heavy materials, ordinary vibrating screen is prone to material escape and the screening accuracy is not up to the standard. Under the action of ultrasonic wave, ultrasonic vibrating screen can effectively improve the screening accuracy and reduce the problem of dust escape.
Types of Ultrasonic Vibrating Screen
External ultrasonic vibrating screen
It is generally installed outside the screen frame of the ultrasonic vibrating screen, and will not have direct contact with the material during the screening process, which can effectively ensure the service life of the ultrasonic transducer, and the installation and maintenance will be relatively simple and fast.
Advantages: Because it is installed outside the screen frame, it will not have direct contact with the material, which can effectively improve the screening efficiency, and can screen the materials with strong conductivity and corrosiveness that cannot be screened by the internal displacement transducer.
Built-in ultrasonic vibrating screen
Generally, it is directly fixed in the middle of the ultrasonic vibrating screen frame, and there will be parts in contact with the screening materials during use. Therefore, when screening some conductive and corrosive materials, it will affect the service life and also affect the transducer. The output frequency has an impact, thereby reducing the screening accuracy and yield. But the price is much cheaper than external transducers.
Advantage: low cost
The working principle of ultrasonic vibrating sieve is to convert 220V, 50Hz or 110V, 60Hz electric energy into 18KHz high-frequency electric energy, input the ultrasonic transducer, and turn it into 18KHz mechanical vibration, and the frequency band output by the CNC power supply is transmitted to the The surface of the screen mesh is 360,000 times/min. When the material is screened, the force of the three-dimensional movement of up and down, horizontal and inclined on the screen surface is also subjected to the high frequency and low amplitude force of the ultrasonic system on the screen surface, so that the ultrasonic vibrating sieve achieves the purpose of sieving and net cleaning. Compared with ordinary vibrating sieve, the screening accuracy can be increased by 1-70%, and the output can be increased by 0.5-10 times.
Different from ordinary rotary vibrating screens, ultrasonic vibrating screens add an ultrasonic device to the foundation so that the screen is subject to low-frequency vibrations and at the same time superimposed with high-frequency ultrasonic vibrations. The ultrafine powder undergoes huge ultrasonic acceleration, while the large particles on the screen are in a suspended state, which avoids network-blocking factors such as material adhesion, friction, leveling, and wedging, and can effectively accelerate the screening process of materials. Therefore, the use of ultrasonic waves The screening pass rate is 50%-400% higher than that of ordinary vibrating screens.
Notes of Ultrasonic Vibrating Screen before Using
1.The input voltage of ultrasonic vibrating screen power supply is AC 220 V, ultrasonic power output is led by case back panel connection box, the red one is "+".When wiring, please pay attention to the voltage polarity, wrong wiring is not allowed.
2.In the condition of meeting the production requirements, lower power grade is better. Maximum current shouldn’t exceed 0.4.
3.When net rack is without load (the net rack is no tension), please do not start up the ultrasonic generator, otherwise it will cause overflow of power and damage of net rack and the oscillator.
4.Screen mesh must be tight, otherwise it will affect the ultrasonic output and the effect of vibration.
5.Oscillator aviation plug docking screws must be tightened and wrapped with insulating tape well, thus it will prevent dust .During operation, please pay attention to protect the connector.
6.Check whether the screw nut of oscillator and cable plug nut is tightened well or not before using, as well as the screw nut of oscillator and the net rack. In process of operation, pay attention to the protection of case and oscillator cables, cables and oscillator socket should be anti-moisture ,no water is allowed to enter in the connection plug and socket.
7.If the material is conductive, please extend the ultrasonic wire, stay the ultrasonic resonance power away from the screening site in order to prevent the material into the power case causing short-circuit.
8. When replace the screen mesh, scraping the residual gum of inner ring (resonance loop) with a sharp wallpaper knife, please do not grind by grinder wheel in order to prevent damage of resonance loop.
9.Each unit of ultrasonic generator includes a resonant power supply, an oscillator and a net rack. Please recognize each part clearly and don't mix with other ultrasonic generator.
We're well-known as one of the leading ultrasonic vibrating screen manufacturers and suppliers in China. If you're going to wholesale ultrasonic vibrating screen made in China, welcome to get quotation from our factory. Also, customized service is available.
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