Composite Shaker Screen Sealing System
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Solution Overview
Problem
Current shaker screens in shale shakers experience inefficiencies due to poor sealing between the screen and the basket, leading to bypassing of drilling fluid and cuttings, which decreases the separation process's efficiency and requires frequent replacement of sealing elements, causing downtime and increased maintenance costs.
Innovation Solution
A shaker screen with a sealing element attached to a composite frame, where the sealing element is disposed along the basal perimeter and compresses against the shaker basket, utilizing thermal bonding or co-molding to form a secure seal, preventing over-compression and extending seal life.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If sealing elements are used to prevent fluid bypass, then sealing integrity is improved, but sealing elements require frequent replacement due to over-compression
Solution Approach 1:
The sealing system is divided into two distinct components: a compressible sealing element and a resilient support member. The support member segments the compression function, providing underlying resilience to prevent over-compression of the sealing element, thereby extending seal life while maintaining sealing integrity.
Solution Approach 2:
The support member changes the compression parameter by providing resilient support that limits the degree of compression applied to the sealing element. This prevents excessive compression that would otherwise lead to premature seal failure, while still maintaining sufficient compression for effective sealing.
2Reliability
If compression force is increased to improve sealing, then sealing integrity is improved, but sealing elements wear out faster
Solution Approach 1:
The resilient support member provides beforehand cushioning by absorbing and distributing compression forces before they reach the sealing element. This cushioning effect prevents over-compression damage while maintaining adequate sealing pressure, extending the service life of the sealing element.
3Duration of action of stationary object
If sealing elements are made more durable, then seal life is extended, but initial sealing effectiveness may be reduced
Solution Approach 1:
The system merges two complementary components: a compressible sealing element that provides initial sealing effectiveness and a resilient support member that extends seal life. Together, they achieve both immediate sealing performance and long-term durability through their synergistic interaction.
4Device complexity
If sealing system is simplified, then device complexity is reduced, but sealing reliability deteriorates
Solution Approach 1:
The complex problem of controlling compression force is extracted from the sealing element itself and assigned to a separate resilient support member. This separation allows each component to be optimized for its specific function while maintaining overall system simplicity and reliability.
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
The solution enhances the integrity of the seal between the shaker screen and the basket, reducing fluid bypass, extending the life of the sealing elements, and minimizing downtime by allowing for easier replacement and reducing maintenance costs.
Implementation Method 1
the sealing element is disposed along the basal perimeter and compresses against the shaker basket
Implementation Method 2
A shaker screen with a sealing element attached to a composite frame
Data Source
AI summary
A shaker screen including a sealing element and a composite frame, wherein the sealing element is attached to a basal perimeter of the composite is disclosed. Furthermore, a method of forming a shaker screen including forming a sealing element, forming a composite frame, and attaching the sealing element to the composite frame, wherein the sealing element is disposed along at least one surface of a basal perimeter of the composite frame is disclosed. Also, a shaker screen attachment including a sealing element, a composite frame, and a wedge is disclosed. The shaker screen attachment further includes wherein the sealing element is attached to a basal perimeter of the composite frame, and wherein the wedge is disposed between the composite frame and a shaker basket such that the sealing element compresses against the shaker basket.