Introduction to GN Flip-Flow Vibrating Screen

GN Large Flip-Flow Vibrating Screen is fundamentally constructed with a box-style exciter, a primary vibrating frame, a floating screen frame, shear springs, damping springs, a flexible polyurethane mesh, supporting structures, and a driving system. Its operational movement follows a linear amplitude pattern. This screen utilizes the double-mass near-resonance principle, enabling the floating screen frame to achieve significant amplitudes and imparting a material acceleration of up to 50 G on the screen surface. As a result, it is extensively employed for dry screening of medium to fine-grained materials, as well as wet, sticky, or otherwise challenging-to-screen substances. Its design minimizes clogging of screen holes and boasts high screening efficiency.

Features and Advantages

1.The screen machine's wallboard is crafted without welding, utilizing high-strength alloy steel plate known for its superior impact resilience. Instead, it incorporates imported Huck rivets for hydraulic tension assembly, eliminating welding residual stress and showcasing advanced design principles.

2.To enhance performance, finite element analysis is employed to refine the screen's structure and vibration parameters, ensuring avoidance of natural frequencies across all levels, minimizing resonance effects, and ultimately prolonging the overall machine's lifespan.

3.Beneath the screen, the crossbeam features a rectangular tube design, while the exciting beam box boasts a lightweight yet robust construction with exceptional toughness. Furthermore, the post-welding heat treatment process applied to key components effectively dissipates welding stress, ensuring optimal performance and durability.

Working Principle For the Flip-Flow Vibrating Screen

The Flip-Flow Vibrating Screen operates based on the double mass near-resonance principle, wherein a single drive initiates a dual vibration motion. The primary vibrating screen frame is actuated by an exciting force, executing fundamental vibrations. The floating screen frame, linked to the primary frame via shear springs, engages in relative motion within the near-resonance regime.

The polyurethane screen mesh is anchored at one end to a fixed beam and at the other to a floating beam. The reciprocal motion between these beams continuously stretches and retracts the screen, imparting substantial acceleration to the material. This ensures complete lifting and stratification of the material.

The screen is capable of delivering an acceleration of up to 50 G to the material, thoroughly loosening and propelling it through the mesh to accomplish screening. Throughout the process, the screen mesh undergoes elastic deformation due to continuous deflection, effectively dislodging wet and sticky materials from its surface.