Stackable Screening Plates with Adjustable Spacing
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Solution Overview
Problem
Existing filter systems lack adjustability in surface area and screening aperture, making them inflexible for various applications and difficult to maintain or clean.
Innovation Solution
A modular static filter screen system comprising a stack of disc-shaped screening plates with angularly offset apertures, adjustable spacing, and integrally-formed spring projections, allowing for customizable filtration and easy assembly/disassembly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a fixed surface area filter is used, then the filtration system is simple to manufacture, but it lacks adaptability for different applications
Solution Approach 1:
The filter screen is divided into multiple individual plates that can be stacked in different combinations. Each plate contains screening apertures, and by varying the number of plates and their arrangement, the filter can be adapted to different surface area requirements while maintaining a modular, relatively simple construction.
Solution Approach 2:
The filter system allows dynamic adjustment of its configuration by adding or removing plates from the stack. This enables the same basic filter structure to be adapted for different applications requiring different surface areas, transforming a static system into a dynamically adjustable one.
2Adaptability or versatility
If a fixed aperture filter is used, then the manufacturing is simple, but the screening capability cannot be adjusted for different requirements
Solution Approach 1:
The filter is segmented into multiple identical or different plates, each with screening apertures. By selecting and stacking specific plates with appropriate aperture sizes, the system can be tailored to different screening requirements without requiring complex custom manufacturing for each application.
Solution Approach 2:
The filter plates are designed to be universal components that can be used in various combinations. The same plate design can serve multiple filtering applications, and different plates can be mixed in a stack to achieve customized screening capabilities, reducing the need for specialized manufacturing.
3Ease of repair
If a solid block filter is used, then the structure is simple, but it is difficult to disassemble for cleaning and maintenance
Solution Approach 1:
The filter is constructed from multiple separate plates stacked together, allowing individual plates to be removed for cleaning or replacement. This segmented structure enables easy maintenance access to each screening surface without disassembling the entire filter assembly.
Solution Approach 2:
The plates are designed with features that facilitate preliminary assembly into a stacked configuration during normal operation, but allow easy separation when maintenance is required. The structure is prepared in advance to enable quick disassembly and reassembly.
4Adaptability or versatility
If uniform plate spacing is used, then the manufacturing is straightforward, but it cannot accommodate varying flow requirements
Solution Approach 1:
The plate spacing is made adjustable rather than fixed, allowing the distance between plates to be varied to accommodate different flow rates and pressure requirements. This dynamic spacing capability enables the same filter structure to adapt to varying operational conditions.
Solution Approach 2:
The physical parameter of plate spacing can be changed to optimize performance for different applications. By adjusting the distance between plates, the filter can accommodate varying flow requirements while maintaining the same basic manufactured components.
Data Source
AI summary
Stackable screening plates (3) with radial screening apertures (10) are carried on a tubular shaft having an axial key. The plates have a choice of keyways (14, 15) allowing the plates to be stacked in alternate angular positions. Spring tongues (16) formed integrally with the plates provide uniform but adjustable mutual spacing.