Working Principle of Disc Screen

Operational Mechanism of Disc Screen

The screen surface of the disc sieve is composed of many parallel arranged roller shafts with sieve discs installed alternately on them. The rollers rotate through sprocket or gear transmission, and their rotation direction is the same as the direction of material flow. Due to the fact that the sieve shaft is arranged at different working angles, the material moves faster when running at higher working angles. When the material runs at a lower working angle, the speed is slower. Two materials running at different speeds start to move axially when they meet at a certain position on the screen surface, which evenly distributes the materials on the screen surface and achieves the goal of improving screening efficiency.

Applications of Disc Screen

In the case of municipal solid waste, screening is fundamental as it helps municipalities and private companies that use MSW shredders and grinders to simplify the recycling process as much as possible. This process applies to both the separation of the organic fraction from the municipal solid waste to be transformed into compost or biogas, and the separation of the light fraction for the production of RDF (Refuse-derived fuel). When the municipal solid waste is adequately separated by innovative screening solutions that guarantee the best results, both can be transformed into high-quality materials and put back on the market. 

Common applications include:

• Municipal Solid Waste (MSW): Separating organic and inorganic materials to enhance recycling and composting processes.
• Construction and Demolition Waste: Sorting debris such as wood, metal, and aggregates for recycling and reuse.
• Biomass Processing: Screening biomass materials like wood chips and green waste for energy production and composting.
• Recycling Plants: Separating various recyclables such as plastics, paper, and metals based on size.
• Composting Operations: Removing contaminants and separating organic materials to produce high-quality compost.

Benefits of Using Disc Screen

Implementing star screens in material separation processes offers numerous benefits:

• Increased Efficiency: Enhances the speed and accuracy of material separation, reducing manual sorting requirements.
• Improved Material Recovery: Increases the recovery rate of valuable materials, supporting recycling efforts.
• Cost Savings: Reduces labor costs and operational expenses through automated and efficient sorting.
• Enhanced Product Quality: Produces cleaner, higher-quality separated materials, improving the value of recycled products.
• Environmental Impact: Supports sustainable waste management practices by increasing recycling rates and reducing landfill usage.

Parameters of Disc Screen