MALAGOLI SCREEN COMPLETE WITH UNLOADING BELT

### **Vibrating Screen**

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

#### **Configuration**

The vibrating screen is configured with the following main components:

- **Frame or Supporting Structure**: Made of steel or other sturdy materials, the frame supports all the other components of the screen and must withstand the stresses of vibration.
- **Sieves or Filter Meshes**: These are the perforated panels through which the materials are separated according to size. They are available in different meshes depending on the classification needs.
- **Vibrating or Eccentric Motors**: These components generate the vibrations needed to move the materials on the screens. The motors can be mounted on the side or underneath the frame.
- **Suspension System**: This 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.
- **Feed and Discharge Channels**: The materials are fed into the screen through the feed channel and the different classified products are expelled through the discharge channels.
- **Regulation Devices**: They allow you to modify the amplitude and frequency of the vibrations to optimize separation according to the type of material.

#### **When Used**

The vibrating screen is used in numerous contexts, including:

- **Mining Industry**: To separate minerals and rocks by size.
- **Food Industry**: To classify ingredients such as sugar, flour, grains, or spices.
- **Chemical Industry**: To separate chemical powders and granules.
- **Recycling Industry**: To separate recyclable materials such as plastic, glass, and metals.
- **Construction**: 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 ability to adjust the amplitude and frequency of the vibrations allows the system to be adapted to the specific needs of the material.
- **Relatively Easy 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 mesh that separate the material by size.
- **Vibration Motors**: Generate the vibrations needed to separate the material.
- **Suspension System**: Springs or bearings that isolate the frame from vibrations.
- **Adjustment Elements**: Devices that allow the intensity of the vibrations to be adjusted.
- **Feed and Discharge Channels**: 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 withstand mechanical stress and optimize material flow.
- **Metal Cutting and Forming**: The frame and other structural components are made by cutting and forming sheet steel or other durable materials.
- **Screen Fabrication**: The filter cakes are perforated or woven according to the required specifications.
- **Assembly**: The various components, including the frame, screens, and vibratory motors, are assembled to precise tolerances. -
**Balancing**: 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 functions properly and separates materials according to the required specifications.

#### **Sectors of Use**

The vibrating screen is used in various sectors, including:

- **Mining Industry**: For the classification of mined minerals.
- **Food Industry**: For the selection of powdered or granular products.
- **Chemical Industry**: For the separation of powdered or granular chemicals.
- **Recycling**: For the separation of recyclable materials according to their size.
- **Construction Industry**: For the classification of building 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.
- **Vibratory Feeders**: To provide a constant flow of material to the screen.
- **Vacuum Systems**: To remove dust or fines during the screening process.
- **Magnetic Separators**: To remove metal particles from the screened material.
- **Automatic Control Unit**: To automatically monitor and adjust the screen's operation.

#### **Usable Controls**

The vibrating screen can be controlled by:

- **Manual Switches**: For basic on/off operations.
- **Inverters**: To vary the speed of the vibrating motor and thus 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 vibration, material flow, and other operating parameters, connected to a centralized control system.

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

Buying a used vibrating screen can be convenient for several reasons:

- **Low Cost**: The price of a used vibrating screen is significantly lower than a new one, saving you 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 properly maintained, can offer performance comparable to a new one.
- **Immediate Availability**: Buying a used screen can save you time compared to purchasing a new one, which may require a long delivery time.
- **Overhaulability**: A used screen can be overhauled to adapt it to your needs, improving its efficiency and useful life.

### **Conclusion**

A vibrating screen is an essential tool for separating and classifying 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 be an excellent opportunity to obtain efficient and reliable machinery at a lower cost, while ensuring high performance in your production process.