In many industries, materials need to be separated according to their particle size before they can be used in the next stage of production. Powder, granules, and other materials may contain particles of different sizes. A vibro screen helps separate these particles through controlled vibration and a suitable screen mesh.
The machine is used in several processing industries such as the manufacture of food, spices, chemicals, and pharmaceuticals. The working principle of the machine will assist manufacturers in selecting an appropriate screen according to their processing needs. Premium PulmanPvt. Ltd., an experienced Vibro Screen Manufacturer, can help businesses choose the right machine based on their material type and production requirements.
What Is an Industrial Vibro Screen?
An industrial vibro screen is screening equipment that operates on the principle of vibration for sorting materials of various sizes. It normally consists of a screen, frame, vibrator, engine, and discharge system.
The mesh has spaces which allow small-sized particles to pass through while the larger particles are trapped on the screen. Depending on the machine design, multiple screen decks can be used to separate material into several size groups.
Vibro screens are commonly used after grinding or mixing operations. For example, spice powder obtained from a pulveriser may be passed through a screen to remove coarse particles and achieve the required fineness.
Working Principle of a Vibro Screen
The working principle of a vibro screen is based on vibration and particle movement across a screen mesh. The process can be understood through the following stages.
1. Feeding the Material
The material is fed onto the screening surface through an inlet. It should be distributed evenly across the mesh to allow proper screening. If too much material enters at once, the mesh may become overloaded, affecting the separation process.
2. Generating Vibration
The electric motor serves to operate the vibrating device. According to the type of equipment used, either eccentric weights or something equivalent provides vibration.
This results in the movement of material along the screen. The vibration also facilitates the movement and interaction of particles with the holes in the screen.
3. Separating Particles Through the Mesh
Particles smaller than the mesh openings can slip through and enter the lower chamber as the material is being processed. Larger-sized particles will remain on the screen, while smaller-sized particles will be discharged into another point. The mechanism of separation depends on several factors, including particle size, screen opening, properties of the materials, feeding rates, and vibration of the machine.
4. Collecting the Screened Material
After separation, the screened material is collected through the designated outlets. In some applications, the larger particles may be sent back for further grinding, while the finer material moves to the next production stage.
A Vibro Screen Manufacturer can help determine the suitable screening arrangement for a particular material and production process.
Applications of Industrial Vibro Screens
The vibro screens find application in various sectors where there is a need for particle separation and classification.
- Spice processing: Sifting chilli powder, turmeric powder, coriander powder, and other spice powders after grinding.
- Food processing: Segregating particles and separating oversize particles from proper food materials.
- Chemical processing: Sorting powders and granules based on the desired size range.
- Pharmaceutical processing: Screening suitable powders as part of material preparation..
- Mineral and abrasive processing: Separating suitable granular materials according to particle size.
The machine configuration and contact materials should be selected according to the product being processed and the conditions of use.
Factors to Consider When Selecting a Vibro Screen
Manufacturers need to evaluate the material type, moisture, particle size, and screening capacity before selecting a machine. There should be compatibility between the size of the mesh opening for the desired separation and the construction of the machine for the environment.
The number of screening decks, space required for installation, cleaning requirements, and interfacing with other equipment are also parameters that can help business organisations select their machines for production.
Dealing with an expert Vibro Screen Manufacturer can simplify the process of evaluating all these parameters before finalising the machine. Giving information about the material and the required output will help in making the selection of the machine easier.
FAQs
The primary function of a vibro screen is to segregate particles based on size by passing small-sized particles through the mesh screen, leaving behind the large particles.
The size of the mesh screen, the material to be processed, the feed rate, vibration parameters and the state of the screen mesh are some of the influencing factors.
Yes, a vibro screen can be used after a pulveriser to segregate powder from oversize particles.
Conclusion
The performance of an industrial vibro screener is achieved using vibrations and opening of screens. The efficiency of the industrial vibro screen is influenced by the feeding process, the proper choice of screens, and the nature of the material. Organisations need to comprehend the above factors before settling for the right screening equipment.
Premium PulmanPvt. Ltd. deals in industrial processing equipment for various material handling and size reduction needs.
Contact Premium Pulman for more details regarding screening machines suitable for your needs.