Conveyor Belt Filter Gap Seal with Inflow Strip
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Solution Overview
Problem
Conveyor belt filter devices experience frequent material fatigue and maintenance needs due to the extensive flexing of compressible sealing strips in deflection areas, which compromises the effectiveness and longevity of the gap seal between filter elements.
Innovation Solution
An inflow strip is introduced on the filter element edge opposite to the sealing strip, forming a movement gap that allows the sealing strip to shift and compensate for changes in gap width without extensive flexing, thereby reducing strain on the gap seal and increasing its lifespan.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a compressible sealing strip is used to seal the filter gap between filter elements, then the sealing effectiveness is improved, but the sealing strip undergoes extensive flexing in deflection areas leading to material fatigue and frequent replacement
Solution Approach 1:
The sealing system is divided into two separate components: a stationary sealing strip attached to one filter element edge and a movable inflow strip attached to the opposing filter element edge. This segmentation allows the sealing function to be maintained while the inflow strip absorbs the flexing and movement, protecting the sealing strip from material fatigue.
Solution Approach 2:
The inflow strip acts as an intermediary between the filter element edge and the sealing strip. It provides a movable sealing surface that accommodates gap width changes and relative mobility in deflection areas, thereby protecting the sealing strip from direct exposure to flexing and mechanical stress.
2Reliability
If the sealing strip is highly compressed in straight conveying sections to cover the entire filter gap, then sealing coverage is improved, but the sealing strip undergoes extensive flexing in deflection areas causing material fatigue
Solution Approach 1:
The sealing system transitions from a static sealing strip to a dynamic system where the inflow strip can move relative to the sealing strip. The movement gap allows the inflow strip to dynamically adjust its position, maintaining sealing coverage in straight sections while accommodating flexing in deflection areas without transmitting stress to the sealing strip.
Solution Approach 2:
Instead of making the sealing strip movable to accommodate gap changes, the invention inverts the approach by making the inflow strip movable and the sealing strip stationary. This inversion protects the sealing strip from material fatigue while maintaining sealing effectiveness through the movable inflow strip.
3Adaptability or versatility
If filter elements are connected via flexible drive means with relative mobility in deflection areas, then adaptability is improved, but the filter gap width changes requiring extensive flexing of the sealing strip
Solution Approach 1:
The sealing function is segmented between a stationary sealing strip and a movable inflow strip. This allows the filter elements to maintain relative mobility for adaptability while the inflow strip absorbs the resulting gap width changes, preventing stress transmission to the sealing strip.
Solution Approach 2:
The system allows the gap width parameter to change dynamically in deflection areas due to filter element mobility, while the movement gap between the inflow strip and sealing strip accommodates these changes. The sealing strip remains stationary with consistent parameters, avoiding material fatigue.
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 significantly reduces the maintenance effort and extends the life span of the gap seal by protecting the sealing strip and enabling it to maintain sealing effectiveness without excessive flexing, even in areas of relative mobility.
Implementation Method 1
said gap seal having a compressible sealing strip that is arranged on one filter element edge
Implementation Method 2
a movement gap being formed between a strip edge of the inflow strip, said strip edge extending parallel to the sealing strip, and the filter element edge that is provided with the sealing strip
Data Source
AI summary
A conveyor belt filter device for mechanically cleaning a polluted liquid includes an endless filter belt formed by pivotably interconnected filter elements, the filter elements having edges that extend parallel to the joint axes and a filter gap that has a gap seal sealing the filter gap formed between opposing edges of adjacent filter elements, said gap seal having a compressible sealing strip arranged on one filter element edge, wherein an inflow strip is arranged at the opposite edge, the flow impinging on the inflow surface of the inflow strip, said inflow strip extending parallel to the sealing strip and having a sealing surface located opposite of the inflow surface and is in contact with the sealing strip, a movement gap formed between a strip edge of the inflow strip, said strip edge extending parallel to the sealing strip, and the filter element edge provided with the sealing strip.