Vibratory Screen Panel Skirt Connection for Blockage Clearance
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Solution Overview
Problem
Existing screen panels in vibratory screening apparatuses face issues with secure attachment, clogging due to material blockage, and downtime due to wear, as they are either too rigid or lack sufficient oscillation to clear blockages, and require frequent replacement, leading to inefficiencies in mining operations.
Innovation Solution
A screen panel design featuring a separate frame and screen with a skirt that connects to the frame's outwardly facing surfaces, allowing for secure attachment to the subframe and oscillation between sides and ends, reducing clogging and enabling easy replacement, while the frame and screen can be optimized for structural and screening purposes separately.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If the screen panel uses a rigid steel frame encapsulated within resilient plastic material, then the structural strength and rigidity are improved, but the ability to oscillate and clear blockages is reduced
Solution Approach 1:
The screen panel is divided into two separate components: a rigid frame and a separate screen surface. This segmentation allows each component to perform its specialized function - the frame provides structural strength while the screen surface can oscillate freely to clear blockages, resolving the contradiction between rigidity and adaptability.
Solution Approach 2:
Different parts of the system have different properties optimized for their specific functions. The frame is made rigid for structural support, while the screen surface is made flexible for oscillation. This local differentiation of properties allows both strength and adaptability to be achieved in their respective locations.
2Reliability
If the screen surface is securely attached to the frame, then the connection reliability is improved, but the ease of replacement is reduced
Solution Approach 1:
The screen surface and frame are designed as separable components with standardized connection interfaces. This allows the screen surface to be securely attached during operation for reliable performance, yet easily detached and replaced when worn, without requiring replacement of the entire panel assembly.
Solution Approach 2:
The frame is designed as a universal component that can accommodate multiple screen surfaces. The standardized connection system allows the same frame to work with different screen surfaces, enabling easy replacement and flexibility in maintaining reliable connections across multiple operational cycles.
3Reliability
If the complete panel assembly is replaced when the screen surface wears, then the screening performance is restored, but the downtime and loss of output increase
Solution Approach 1:
By separating the screen surface from the frame, the system enables replacement of only the worn screen surface rather than the entire panel assembly. This significantly reduces replacement time and minimizes downtime, maintaining high productivity while restoring screening performance.
Solution Approach 2:
The durable frame is recovered and reused after screen surface replacement, while only the consumable screen surface is discarded and replaced. This extends the operational life of the expensive frame component and reduces overall replacement frequency, maintaining productivity while ensuring reliable screening performance.
4Adaptability or versatility
If the screen panel allows free oscillation, then the ability to clear blockages is improved, but the structural stability is reduced
Solution Approach 1:
The system separates the structural support function (frame) from the oscillating screening function (screen surface). The frame remains stable and fixed to the subframe, while the screen surface oscillates freely, allowing both structural stability and blockage-clearing capability to coexist without compromise.
Data Source
AI summary
A screen panel 15 for mounting to a vibratory screening apparatus that includes a plurality of beams 11 to which screen panels 15 can be mounted. The screen panel 15 comprises a square or rectangular frame 21 including a pair of spaced apart and parallel side frame members 25 and a pair of spaced apart and parallel end frame members 38 connected to the side frame members 25. The frame 21 defines an upper edge and the side and end frame members define a square or rectangular outwardly facing surface. The frame 21 is connectable to a pair of adjacent beams 11 by connectors 20 that connect with the outwardly facing surface of the side frame members 25. The screen panel 15 also comprises a square or rectangular screen 22 connected to the frame 21 which extends over the upper edge of the frame 21 and forms a square or rectangular skirt 33, 36. The skirt 33, 36 overlies the outwardly facing surface of the frame 21 and connects to each of the side and end frame members along the outwardly facing surface to connect the screen 22 to the frame 21. The connection between skirt 36 and the outwardly facing surface of the side frame members 25 is made closer to the upper edge of the frame than where the connection between the connectors 20 and the outwardly facing surface of the side members 25 of the frame 21 is made.