The Centrifugal Screen utilizes a completely different physical principle from a vibrating screen. Instead of separating particles through mechanical vibration, it utilizes air flow and negative pressure adsorption. Coreal Machinery has compiled some information for your reference.
Flour is prone to agglomeration due to static electricity, moisture, and interparticle forces, resulting in soft particles. Traditional vibrating screens suffer from severe clogging, low efficiency, and substandard screening accuracy. The Centrifugal Screen utilizes a revolutionary physical screening principle to fundamentally address these challenges.
I. How the Centrifugal Screen Targetedly Addresses Flour Screening Challenges
1. Addressing the "Easy Agglomeration" Problem:
- Core Mechanism: Negative Pressure Adsorption + High-Pressure Injection
Negative Pressure Adsorption: An induced draft fan generates a stable negative pressure within the device, attracting and flattening fine flour particles onto the screen surface, breaking up weak agglomerates.
High-pressure spraying: A ring of high-speed rotating nozzles below the screen sprays dry, clean compressed air at a regular, high-frequency rate. The airflow impacts the flour clumps within the screen, breaking up and deagglomerating them and releasing any trapped fine particles.
2. Addressing the problem of low screening accuracy:
- Single-layer particle screening: The combined effects of negative pressure and spraying create a dynamic single or thin layer of flour particles on the screen, ensuring that each particle fully contacts the screen, preventing particle interference and lamination, and ensuring that only particles smaller than the mesh size pass through.
- Efficient impurity removal: Large impurities, which have difficulty passing through the screen, are pushed to the discharge port by the high-pressure airflow, resulting in virtually no false positives or residue, improving the purity of the oversize fraction and ensuring high precision of the undersize fraction.
II. Core Advantages
- 1.High-Efficiency Screening: Screening efficiency reaches over 95%, with a yield 5-10 times higher than traditional vibrating screens.
- 2.High Precision: Screening accuracy ranges from 80-530 mesh, with a screen penetration rate ≥85%.
- 3.Anti-Agglomeration: Re-disintegrates pseudo-agglomerated materials, solving the problem of flour agglomeration.
- 4.Long Screen Life: Vertical, load-free installation extends screen life by over three times.
- 5.Energy-Efficient: Fully enclosed structure eliminates dust emission, resulting in low noise and energy consumption.
- 6.Automatic Screen Cleaning: The screen is automatically cleaned by a cyclonic flow to prevent clogging.
III. Application Scenarios
- 1. High-end specialty flour production: such as cake flour, biscuit flour, and bread flour, which require the highest levels of fineness and purity.
- 2. Flour Post-Processing: Final screening before packaging to ensure the product is free of impurities.
- 3. Post-Additive Screening: After mixing trace additives with flour, the flour is screened to ensure a uniform mixture and eliminate lumps.
- 4. Grain Mill Screening: Used for fine screening of milled wheat, rice, beans, and other products.
For high-demand powders like flour that easily agglomerate, the Centrifugal Screen, through its unique Centrifugal Screen separation principle, perfectly overcomes the two core challenges of screen clogging and precision that traditional screening methods struggle to address.
Coreal Machinery is committed to providing you with high-quality screening equipment and industry solutions.