Waste Sorting Conveyor with Far-Side Output Access
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Solution Overview
Problem
Conventional waste sorting plants face issues such as high operator absenteeism, inefficient sorting due to uneven material distribution, conveyor belt stoppages, inconsistent material separation quality, and complexity in design and maintenance, particularly when handling mixed and varying waste types.
Innovation Solution
A waste sorting apparatus with an input conveyor and multiple output conveyors accessible from operator stations, allowing operators to sort items into corresponding streams by throwing or placing them onto far-side output conveyors, with adjustable flow rates and optional shredding and reverse conveyor operations to manage different material types effectively.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If operators stand adjacent to the central conveyor belt to sort materials, then sorting can be performed manually, but operator absenteeism causes items to end up in landfill and productivity is reduced
Solution Approach 1:
Each operator station is equipped with multiple output conveyors for different material types (e.g., timber, brick, general waste) that can all be accessed from a single location. This allows one operator to handle multiple material types, ensuring that if one operator is absent, another can cover their material types without interruption to the sorting process.
Solution Approach 2:
The system allows dynamic assignment of material types to operators and flexible routing of sorted items to different output conveyors based on current operational needs and operator availability, rather than having fixed, rigid assignments that break down when operators are absent.
2Productivity
If multiple operators are assigned to pick the same type of item, then handling volume increases, but device complexity and coordination requirements increase
Solution Approach 1:
Multiple output conveyors for the same or different material types are merged into a single accessible location where one operator can sort all types. This eliminates the need for multiple specialized operators while maintaining high handling capacity, as the unified station consolidates what would otherwise require coordinated effort across multiple workstations.
3Ease of manufacture
If the conveyor belt stops while bins are emptied, then material collection is complete, but productivity is lost
Solution Approach 1:
Output conveyors are positioned and configured to allow operators to sort materials directly onto them during continuous operation. The conveyors can be loaded and prepared in advance, and operators can begin sorting onto them before the system needs to stop, enabling seamless transitions and eliminating downtime for bin emptying.
Solution Approach 2:
The system maintains continuous conveyor operation by providing multiple output destinations that can be accessed without stopping the input conveyor. Operators continuously sort materials onto moving output conveyors, ensuring that the sorting process never interrupts the flow of materials through the system.
4Productivity
If operators throw items over the input conveyor to far-side output conveyors, then sorting efficiency increases, but safety risks may increase
Solution Approach 1:
The system introduces intermediate sorting stations and output conveyors positioned between the operator and the final destination. Operators sort items onto intermediate conveyors or chutes that safely transport materials to far-side output conveyors, eliminating the need for operators to throw items directly across the input conveyor while maintaining sorting efficiency.
Data Source
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AI summary
A waste sorting apparatus including: an input conveyor for conveying an input stream of mixed waste materials including items of a plurality of different types; a plurality of output conveyors for conveying respective output streams of said waste materials; and a plurality of operator stations for respective human operators, wherein the input conveyor and the plurality of output conveyors are configured to be accessible from each operator station to allow each operator to sort items of said different types from the input stream to respective ones of the output streams, each of the output streams including sorted items of a corresponding one of said types, and wherein at least one of the output conveyors is a far-side output conveyor on the far side of the input conveyor from the operator stations to allow each operator to throw items to the far-side output conveyor over the input conveyor.