Sieve Cloth Velocity Control for Wear Reduction
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Solution Overview
Problem
Existing sieve cloths attached to support belts in sieve apparatuses face undesirable loads and are time-consuming to connect, as they must move at the same velocity as the belt, leading to reduced effective life and inefficient operation.
Innovation Solution
A method and apparatus allowing the sieve cloth to be connected and disconnected from the support belt at different velocities, using engagement means and signal transmitters to control the rotation and positioning of the sieve cloth, enabling independent movement and easy attachment/removal.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the sieve cloth is attached to the support belt, then the sieve cloth is supported and guided between the turning rollers, but the sieve cloth is forced to move at the same velocity as the support belt despite having a longer motion path, causing undesirable loads and reduced effective life
Solution Approach 1:
The connection between sieve cloth and support belt is segmented into discrete engagement zones rather than continuous attachment. The sieve cloth is divided into sections with engagement means (hooks, clips, or magnetic elements) that selectively engage with corresponding features on the support belt at specific locations, allowing different velocity profiles in different zones.
Solution Approach 2:
The connection system transitions from static continuous attachment to dynamic selective engagement. The engagement means allow the sieve cloth to dynamically adjust its velocity relative to the support belt, engaging when needed for support and disengaging when velocity differences are required, enabling the sieve cloth to move at different velocities while maintaining support where needed.
2Reliability
If the sieve cloth is fixed to the support belt, then the sieve cloth is supported during operation, but it becomes time-consuming to attach and remove the sieve cloth
Solution Approach 1:
The support belt is pre-equipped with engagement means (hooks, clips, magnetic elements, or quick-connect features) positioned at optimal locations before the sieve cloth needs to be attached. This preliminary preparation allows the sieve cloth to be quickly connected by simply engaging its corresponding features without complex alignment or fastening procedures, significantly reducing attachment and removal time while maintaining support stability during operation.
3Device complexity
If the sieve cloth moves at the same velocity as the support belt, then the connection is simplified, but the sieve cloth experiences undesirable loads due to the longer motion path requiring higher velocity
Solution Approach 1:
The support belt acts as an intermediary that provides support only at specific engagement zones rather than continuous attachment. This allows the sieve cloth to move independently between engagement points, adjusting its velocity to match the longer motion path requirements without being constrained by the support belt's velocity, thereby reducing harmful loads while maintaining connection simplicity at engagement points.
Data Source
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AI summary
Described herein is a sieve cloth (1) and a method of connecting the sieve cloth (1) to a sieve apparatus (10) of a type wherein an endless sieve cloth (1) is supported by a support belt (12) which, in operation, is structured in a manner allowing it to rotate around at least two spaced-apart turning rollers (14), wherein the method comprises the steps of: providing at least one sieve cloth sheet (1') having an upper side, a lower side, two side portions (7) and a first end portion (3) and a second end portion (5) extending between the side portions (7); bringing at least a portion of the sieve cloth sheet (1') into engagement with a portion of the support belt (12); positioning the sieve cloth sheet (1') against the support belt (12) by moving the support belt (12) around the turning rollers (14); bringing at least two adjoining end portions (3, ) into engagement with each other until the at least one sieve cloth sheet (1') forms an endless sieve cloth (1); and also a method of controlling the separation of solid particles from a fluid. (Figure 3) 1