Adjustable Riddling Device for Inert Material Separation
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Solution Overview
Problem
Existing riddling apparatuses for inert materials are inflexible and require time-consuming and costly operations to adjust the size of interstitial spaces between rollers, and are prone to blockages that necessitate disassembly, leading to working delays and increased costs.
Innovation Solution
A riddling device with rotatable rollers and adjustable axis distances, allowing for quick modification of interstitial spaces using the same power source, enabling adaptation to different material sizes and easy unblocking of trapped objects without disassembly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the tools on rollers are replaced or removed to adjust the size of interstitial spaces, then the riddling apparatus can accommodate different material sizes, but the operation becomes troublesome and time-consuming
Solution Approach 1:
The patent applies the dynamics principle by making the roller positions adjustable through a hydraulic system. The rollers can be moved along guide rails to change the distance between them, dynamically adapting the interstitial spaces to match different material sizes without requiring tool replacement or disassembly.
Solution Approach 2:
The patent implements parameter changes by varying the distance between rollers through hydraulic actuation. This allows continuous adjustment of the interstitial space parameter to accommodate different material dimensions, eliminating the need for discrete tool replacements.
2Reliability
If the rollers are disassembled to remove trapped objects, then blockages can be cleared, but working delays and increased costs occur
Solution Approach 1:
The patent applies dynamics by enabling the rollers to be moved independently along guide rails. When a blockage is detected, the system can dynamically adjust roller positions to create larger gaps, allowing trapped objects to be removed without disassembling the rollers or stopping work for extended periods.
3Device complexity
If the riddling apparatus is designed with fixed roller positions, then the structure is simple, but it cannot adapt to different material sizes
Solution Approach 1:
The patent implements universality by designing a system where rollers can be positioned at multiple locations along guide rails. This single structure serves multiple functions by accommodating various material sizes through adjustable roller spacing, eliminating the need for multiple fixed configurations or tool sets.
4Manufacturing precision
If multiple tools are installed on rollers to decrease interstitial space, then smaller materials can be riddled, but the device complexity increases
Solution Approach 1:
The patent applies parameter changes by controlling the distance between rollers rather than varying the number or type of tools. This allows precise control over the size of riddled materials through hydraulic adjustment of roller positioning, maintaining device simplicity while achieving manufacturing precision.
Data Source
AI summary
Device (100) for riddling materials such as, for instance, inert materials arising from demolitions or the like or inert materials for the building industry such as gravels, sands or the like, comprising at least two riddling rollers or drums (103, 102), wherein at least one of them can be moved with respect to the other so that the distance between the axis of rotation of said at least two rollers or drums can be changed according to the needs and/or circumstances.