Screen Media Resilient Coupling Vibration Amplification
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Solution Overview
Problem
Conventional screening apparatuses require significant structural reinforcement and high drive systems to achieve high acceleration vibrations, increasing costs and being unnecessary for all types of screen media, especially when dealing with sticky materials or varying screen media types.
Innovation Solution
A screening apparatus with screen media coupled to the body via a resilient coupling mechanism that allows oscillatory movement, enabling amplification of vibrations and adjustable resonance frequencies, allowing for targeted vibration amplification without necessitating high acceleration of the entire apparatus.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the entire screening apparatus is vibrated at high accelerations to prevent material sticking, then the screening effectiveness for sticky materials is improved, but the drive system size and structural reinforcement requirements increase significantly
Solution Approach 1:
The screening apparatus is divided into multiple independent screen media decks, each capable of being vibrated separately. This allows selective vibration of individual decks rather than requiring the entire apparatus to vibrate at high acceleration, thereby reducing the overall power requirement while maintaining effective screening for sticky materials on specific decks where needed.
Solution Approach 2:
Different screen media decks can have different vibration characteristics tailored to their specific screening requirements. Decks handling sticky materials can be configured for high acceleration vibration, while other decks can operate at lower accelerations, optimizing power usage and preventing material sticking only where necessary.
2Reliability
If the entire screening apparatus is vibrated at high accelerations to prevent material sticking, then the screening effectiveness for sticky materials is improved, but the structural reinforcement requirements and manufacturing cost increase
Solution Approach 1:
The apparatus is segmented into independently vibrated decks, allowing high acceleration vibration to be applied only to specific decks where sticky material screening is required. This eliminates the need for comprehensive structural reinforcement of the entire apparatus, reducing manufacturing costs while maintaining screening effectiveness for problematic materials.
Solution Approach 2:
Structural reinforcement and vibration intensity are localized to specific decks based on their screening requirements. Only decks handling sticky materials require high acceleration capability and corresponding structural reinforcement, while other decks can use simpler, less expensive constructions.
3Reliability
If the entire screening apparatus is vibrated at high accelerations, then material sticking is prevented, but the vibration may be unnecessary or undesirable for all types of screen media present
Solution Approach 1:
Each screen media deck is equipped with independent vibration control, allowing different vibration intensities and frequencies to be applied to different decks. This enables high acceleration vibration to be used only on decks where sticky material screening is required, while other decks can operate with gentler vibration suitable for their specific screen media type, thereby preventing material sticking only where necessary and preserving adaptability to different materials.
Solution Approach 2:
Vibration characteristics are optimized locally for each screen media deck based on the specific material being screened. Decks handling sticky materials receive high acceleration vibration to prevent sticking, while decks handling free-flowing materials use lower acceleration, maximizing adaptability to different screen media types while maintaining screening effectiveness where needed.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This solution reduces operational costs by allowing selective vibration amplification of screen media, effectively preventing material sticking and maintaining an efficient screening interface without the need for extensive structural reinforcement or high drive system power.
Implementation Method 1
the screen media and the respective resilient coupling mechanism are configured to resonate with respect to the body at a selected resonant frequency
Implementation Method 2
said resilient coupling mechanism comprises at least one spring coupled between said body and said screen media
Data Source
AI summary
A screening apparatus comprising a body, a drive system for imparting vibrations to the body, and screen media that is coupled to the body by a resilient coupling mechanism that allows oscillatory movement of the screen media with respect to the body. In response to vibration of the body, the resilient coupling mechanism causes the screen media to oscillate in a manner that is amplified with respect to the vibration of the body. The amplification may depend on the frequency of the vibrations of the body and/or on the mass of any material gathered on the screen media.