Undulating Shaker Screen Assembly for Enhanced Screening Efficacy
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Solution Overview
Problem
Undulating shaker screen assemblies in vibratory shaker machines do not fully utilize their increased screening area throughout the entire screening process, leading to reduced screening efficacy compared to traditional flat shaker screen assemblies.
Innovation Solution
The undulating shaker screen assembly design includes a support frame and an undulating screen subassembly with a planar panel and a mesh section featuring elongated undulations. The mesh section is attached to the planar panel such that the mesh openings are over the panel perforations, and the planar base portions of the undulations are attached to the upper panel surface, optimizing the use of the increased screening area.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If an undulating mesh section is used to increase screen surface area, then the screening area is substantially increased, but the increased screening area is not fully utilized throughout the entire screening process
Solution Approach 1:
The mesh section transitions from a flat two-dimensional surface to a three-dimensional undulating structure with raised portions and base portions. This dimensional change increases the screen surface area by approximately 80% while maintaining the same overall assembly dimensions, allowing the screen to process more fluid volume during the flooding stage.
Solution Approach 2:
The shaker screen assembly incorporates vibratory motion that dynamically redistributes the mixture of solids and liquids across the undulating mesh surface throughout the screening process. This dynamic action ensures that all portions of the mesh section, including raised portions and base portions, are utilized for screening, resolving the issue of underutilized screening area.
2Area of stationary object
If an undulating mesh section is used to increase screen surface area, then the screening area is substantially increased, but uneven wear occurs on the mesh section
Solution Approach 1:
The vibratory motion dynamically redistributes the mixture across the undulating mesh surface, preventing material from remaining concentrated in specific areas. This dynamic redistribution ensures uniform contact and wear distribution across the entire mesh section including raised portions and base portions, extending screen assembly life.
Solution Approach 2:
The undulating structure is designed to promote uniform distribution of the mixture across the entire mesh surface from the beginning of the screening process. The raised portions and base portions work together to distribute material evenly, preventing premature localized wear before the screen assembly needs replacement.
3Ease of manufacture
If a flat mesh section is used, then the structure is simple and easy to manufacture, but the screening area is limited
Solution Approach 1:
The mesh section is formed with undulations including raised portions and base portions, transitioning from a flat two-dimensional surface to a three-dimensional structure. This dimensional change increases the screen surface area by approximately 80% while maintaining the same overall assembly dimensions, allowing more fluid to be processed simultaneously.
Solution Approach 2:
The mesh section incorporates curved undulating surfaces with raised portions that rise from the base portions. These curved surfaces increase the effective screening area while maintaining structural integrity and facilitating the vibration-based screening process.
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 ensures that the increased screening area provided by the undulating mesh section is utilized throughout the entire screening process, enhancing the separation efficiency and extending the life of the screen assembly by reducing uneven wear.
Implementation Method 1
The undulating nature of the mesh section of an undulating shaker screen assembly increases the surface area and effective filter area of the shaker screen assembly while allowing the overall length and width of the assembly to stay the same
Implementation Method 2
the shaker screen assembly is caused to vibrate by the shaker machine... In order to facilitate the filtration process and cause the separated solids to slide off the top of the shaker screen assembly as the process is carried out, the shaker screen assembly is caused to vibrate by the shaker machine
Data Source
AI summary
A shaker screen assembly comprising a support frame and a screen subassembly attached to the support frame is provided. The screen subassembly includes a planar panel and a mesh section attached to the planar panel. The mesh section includes a series of undulations, each undulation including an elongated base portion and an elongated raised portion. Each of the elongated base portions includes a bottom planar portion, a first undulation side, and a second undulation side.