MALAGOLI SCREEN COMPLETE WITH UNLOADING BELT

### **Vibrating Screener**

A **vibrating screen** is a mechanical device used to separate materials based on particle size, using vibration to filter and classify materials efficiently. It is widely used in various industrial sectors, where the separation and classification of materials are essential.

#### **Configuration**

The vibrating screen is configured with the following main components:

- **Frame or Load-bearing Structure**: Made of steel or other robust materials, the frame supports all the other components of the screen and must resist vibration stress.
- **Sieves or Filtration Nets**: These are the perforated panels through which materials are separated based on size. They are available in different meshes depending on classification needs.
- **Vibrating or Eccentric Motors**: These components generate the vibrations necessary to move the materials on the sieves. The motors can be mounted on the side or underneath the chassis.
- **Suspension System**: Consists of springs or bearings that connect the frame to the base, allowing the screen to vibrate freely without transferring vibrations to the surrounding structure.
- **Feeding and Discharge Channels**: The materials are introduced into the screen via the feeding channel and the different classified products are expelled through the discharge channels.
- **Adjustment Devices**: They allow you to modify the amplitude and frequency of the vibrations to optimize the separation based on the type of material.

#### **When Used**

The vibrating screen is used in numerous contexts, including:

- **Mining Industry**: To separate minerals and rocks based on size.
- **Food Industry**: To classify ingredients such as sugar, flour, cereals, or spices.
- **Chemical Industry**: To separate chemical powders and granulates.
- **Recycling Industry**: To separate recyclable materials such as plastic, glass, and metals.
- **Constructions**: To classify aggregates such as sand and gravel.

#### **Advantages Compared to Other Systems**

- **Separation Efficiency**: Vibrating screens can separate large volumes of material with high precision and continuously.
- **Versatility**: They can be used for a wide range of materials, from fine powders to large aggregates.
- **Variable Control**: The possibility of regulating the amplitude and frequency of the vibrations allows you to adapt the system to the specific needs of the material.
- **Relatively Simple Maintenance**: Compared to other separation systems, vibrating screens require less maintenance, as they have fewer moving parts exposed to wear.

#### **Mechanical Parts**

The main mechanical parts of a vibrating screen include:

- **Frame**: The structure that supports the entire system.
- **Sieves**: Perforated panels or nets that separate material based on size.
- **Vibrating Motors**: They generate the vibrations necessary for the separation of the material.
- **Suspension System**: Springs or bearings that isolate the frame from vibrations.
- **Regulation Elements**: Devices that allow you to modify the intensity of the vibrations.
- **Feeding and Discharge Channels**: They allow the material to enter and exit the screen.

#### **Mechanical Processes to Build It**

The construction of a vibrating screen involves several mechanical processes:

- **Design and Engineering**: The screen is designed to resist mechanical stress and to optimize material flow.
- **Metal Cutting and Forming**: The frame and other structural components are made by cutting and forming sheet steel or other resistant materials.
- **Sieve Processing**: The filtration panels are perforated or woven depending on the specific requests.
- **Assembly**: The various components, including the frame, sieves and vibrating motors, are assembled with precise tolerances.
- **Balance**: The system is balanced to ensure that vibrations are evenly distributed and that there are no dead zones or imbalances.
- **Testing**: The screen is tested to ensure that it works correctly and separates materials according to the required specifications.

#### **Sectors of Use**

The vibrating screen is used in several industries, including:

- **Mining Industry**: For the classification of extracted minerals.
- **Food Industry**: For the selection of powdered or granular products.
- **Chemical Industry**: For the separation of powdered or granulated chemical products.
- **Recycling**: To separate recyclable materials based on their size.
- **Construction Industry**: For the classification of construction materials such as sand and gravel.

#### **Matched Components**

The vibrating screen can be combined with different components to optimize the separation process:

- **Conveyor Belts**: To transport materials to and from the screen.
- **Vibrating Feeders**: To provide a constant flow of material to the screen.
- **Vacuum Systems**: To remove dust or fine materials during the screening process.
- **Magnetic Separators**: To remove metal particles from the screened material.
- **Automatic Control Unit**: To automatically monitor and regulate the operation of the screen.

#### **Usable Controls**

The vibrating screen can be controlled via:

- **Manual Switches**: For basic on and off operations.
- **Inverter**: To vary the speed of the vibrating motor and therefore regulate the intensity of the vibrations.
- **Automation Systems**: Using PLCs (Programmable Logic Controllers) for automated control, especially in complex industrial applications.
- **Monitoring Sensors**: Sensors to monitor vibrations, material flow and other operating parameters, connected to a centralized control system.

#### **Why It's Better to Buy Used**

Buying a used vibrating screener can be convenient for various reasons:

- **Reduced Cost**: The price of a used vibrating screen is significantly lower than a new one, allowing you to save capital.
- **Durability**: These machines are designed to withstand harsh operating conditions and can last for many years, even when used.
- **Reliability**: A used vibrating screen, if well maintained, can offer comparable performance to a new one.
- **Immediate Availability**: Purchasing a used screener can save time compared to purchasing a new one which may require long delivery times.
- **Possibility of Overhaul**: It is possible to overhaul a used screen to adapt it to your needs, improving its efficiency and useful life.

### **Conclusion**

The vibrating screen is an essential tool for the separation and classification of materials in many industries. Thanks to its versatile configuration and the advantages it offers over other separation systems, it is an ideal choice for many applications. Purchasing a used vibrating screen can represent an excellent opportunity to obtain an efficient and reliable machine at a lower cost, while ensuring a high level of performance in your production process.