Vibrating Mesh Separator Prevents Blockage from Large Solids
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Solution Overview
Problem
Existing waste stream separators are inefficient and prone to blockage due to large-sized objects like towels and tissues, leading to reduced separating efficiency and increased maintenance costs, as they are not designed to handle unshreddable items effectively.
Innovation Solution
A separator with a vibrating mesh screen and receptacle system that allows large-sized solid constituents to drop onto a collector while liquid and small-sized solid constituents pass through, preventing blockage by creating a gap between the screen edge and the housing, and using a drive unit to induce vibrations for efficient separation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a traditional separator is used to separate waste streams, then liquid and small-sized solid constituents can be separated, but large-sized solid constituents (such as towels and tissues) cause blockage inside the housing, reducing separating efficiency and increasing maintenance requirements
Solution Approach 1:
The separator divides the waste stream into multiple streams based on size: large-sized solid constituents are separated into a first waste stream, while liquid and small-sized solid constituents form a second waste stream. This segmentation prevents large objects from causing blockage in the liquid discharge path while maintaining effective separation of smaller particles.
Solution Approach 2:
The invention extracts and removes large-sized solid constituents (such as towels and tissues) from the waste stream before they can enter and block the separator housing. By taking out these problematic objects early in the separation process, the system prevents blockage and maintains reliable operation.
2Productivity
If a separator handles large-sized unshreddable objects, then complete waste stream processing is achieved, but the objects accumulate in and near the separator causing blockage and requiring high maintenance
Solution Approach 1:
The separator creates different discharge paths with different characteristics: one path for large-sized objects that cannot be shredded, and another path for liquid and small particles. This local differentiation in discharge quality allows the system to handle diverse waste types without compromising maintenance ease.
Solution Approach 2:
The invention adds a dimensional aspect to waste separation by creating separate discharge outlets for different waste types. The first outlet handles large-sized solids while the second outlet handles liquid and small particles, effectively adding a spatial dimension to the separation process that reduces maintenance requirements.
3Reliability
If a complex drive construction is used to vibrate the sieves for separation, then separating efficiency is improved, but the system becomes prone to wear and involves high maintenance costs
Solution Approach 1:
The separator employs a dynamic vibration mechanism that causes the mesh screen to oscillate, enabling effective separation of waste constituents. This dynamic approach improves separation performance by preventing material buildup on the screen while maintaining relatively simple drive construction compared to static or multi-stage systems.
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 effectively separates waste streams into large-sized and liquid/small-sized solid constituents, reducing the likelihood of blockages and maintenance needs, thereby enhancing efficiency and reducing handling costs without compromising hygiene.
Implementation Method 1
a drive unit mounted to the vibrating support, the drive unit being configured to induce vibration to the support and to the receptacle and screen connected thereto
Data Source
AI summary
The present disclosure relates to a separator (100) and method of separating a waste stream (120) comprising liquid constituents, small-sized solid constituents and large-sized solid constituents into a first waste stream (121) substantially comprising the large-sized solid constituents and a second waste stream (122) substantially comprising a mixture of liquid and the small-sized solid constituents. The present disclosure also relates to a waste handling system (1) comprising such separator (100).