Vibratory Screener Frame Segmentation for Hygiene and Stability
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Solution Overview
Problem
Conventional vibratory screeners face challenges in scaling up material throughput while maintaining a lightweight construction and ensuring high hygienic safety standards, particularly in pharmaceuticals and food processing.
Innovation Solution
The vibratory screener incorporates a screen carrier frame with internal annular disks and an inner sleeve, which provides radial reinforcement and eliminates hollow spaces, allowing for a lightweight, easy-to-clean design that minimizes germ breeding grounds.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If thicker materials or hollow profiles are used for the screen carrier frame to achieve high stability, then the frame stability is improved, but the frame weight increases and energy consumption increases
Solution Approach 1:
The frame is segmented by introducing internal annular disks that divide the hollow space into multiple compartments. This segmentation provides structural reinforcement similar to thicker materials but maintains the lightweight advantage of hollow construction by using discrete reinforcing elements rather than uniformly thickening the entire frame.
Solution Approach 2:
Instead of uniformly thickening the entire frame, the invention applies local reinforcement through internal annular disks positioned at specific locations where structural support is most needed. This allows the frame to have varying wall thicknesses - thinner in non-critical areas and reinforced at critical points - optimizing both weight and stability.
2Weight of moving object
If hollow profiles are used to reduce frame weight, then the frame weight is reduced, but hygienic safety deteriorates due to germ breeding in hollow spaces
Solution Approach 1:
The continuous hollow space is segmented into multiple smaller compartments by internal annular disks. This segmentation prevents the formation of large, continuous hollow spaces where germs could breed, while still maintaining the overall lightweight advantage of hollow construction.
Solution Approach 2:
The invention extracts or removes the problematic continuous hollow space and replaces it with a segmented structure that has reduced volume and limited access points. The internal annular disks effectively 'take out' the harmful continuous cavity and replace it with controlled, segmented spaces that are less susceptible to germ contamination.
3Power
If vibration motors are mounted on the screen carrier frame to generate screening forces, then the screening force is improved, but radial forces causing frame breathing and material fatigue increase
Solution Approach 1:
The frame structure is segmented by internal annular disks that create multiple stiffening sections. This segmentation increases the frame's resistance to radial deformation caused by vibration motors, reducing breathing movements and preventing material fatigue without compromising the power transmission capability of the frame.
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 design enhances material throughput by reducing breathing and material fatigue of the screen carrier frame, while ensuring high hygienic safety standards by preventing germ growth and facilitating thorough cleaning and disinfection.
Implementation Method 1
Vibration motors generate vibrations through rotation of eccentric weights mounted on a rotatable shaft
Implementation Method 2
the forces towards and away from each other act on the screen carrier frame. That is, with each rotation of the vibration motors, the radial forces tend to widen and compress the screen carrier frame radially
Implementation Method 3
at least two internal annular disks, each having an inner rim and an outer rim, wherein each of said at least two internal annular disks is attached to the inner circumference of the screen carrier frame by its outer rim
Data Source
AI summary
A vibratory screener includes a screen carrier frame having inner and outer circumferences, a horizontal screen for separation of solid particles within and vertically supported by the frame, one or more vibration motors on the outer circumference of the screen carrier frame and configured to generate vibration perpendicular to the screen, and at least two internal annular disks each having an inner rim and an outer rim. Each internal annular disk is attached to the inner circumference of the frame by its outer rim, the internal annular disks are spaced apart from each other in parallel planes, and an inner sleeve is arranged within the frame. The inner sleeve is attached the inner rims of two of the internal annular disks, where the upper internal annular disk and the inner sleeve provide an unbroken surface and where the lower internal annular disk has openings towards the outside environment.