Paper Sorting Dryer for Moisture and Contaminant Removal
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Solution Overview
Problem
Paper products mixed with garbage are often unsuitable for recycling due to contamination and high moisture content, leading to their disposal rather than recycling.
Innovation Solution
A method and apparatus for sorting paper from garbage, involving a dryer to reduce moisture content and remove contaminants, allowing for the separation and recycling of paper products.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If paper products are mixed with garbage for collection, then collection efficiency is improved, but the paper becomes contaminated and unsuitable for recycling
Solution Approach 1:
The system segments the mixed garbage stream to separate paper products from other waste materials. The sorter identifies and isolates paper items, directing them to a dedicated processing line while sending other garbage to landfill or composting, thereby restoring recyclability without sacrificing collection efficiency
Solution Approach 2:
The system extracts contaminated paper products from the mixed garbage stream and removes contaminants through cleaning mechanisms. This extraction process separates the recyclable paper component from non-recyclable garbage, enabling the paper to be recycled despite initial contamination
2Quantity of substance
If paper with high moisture content is recycled, then recycling volume is maintained, but the paper quality deteriorates
Solution Approach 1:
The system changes the moisture parameter of the paper by implementing a drying process. The dryer reduces moisture content from high levels to an acceptable range for recycling, thereby maintaining paper quality while preserving recycling volume. This parameter transformation enables the paper to meet recycling specifications without reducing the quantity processed
3Reliability
If paper is cleaned and dried before recycling, then paper quality is improved, but processing complexity increases
Solution Approach 1:
The system merges multiple functions into integrated processing stations. The sorter, cleaner, and dryer are combined into a continuous processing line where paper moves through sequential operations without manual intervention. This integration reduces overall system complexity despite adding cleaning and drying capabilities, as the functions work together in a coordinated manner rather than as separate standalone 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 enables the recycling of previously unsuitable paper products by cleaning and drying them, making them suitable for reuse in paper products such as cardboard or paper plates.
Implementation Method 1
at least one dryer configured to heat the paper without combusting the paper to remove water from the paper
Implementation Method 2
the dryer can include a heater configured to heat the paper in the dryer
Implementation Method 3
The dryer can also be configured to mix the paper as it is dried while also removing particulate contaminants off of the paper to clean the thrown away paper
Implementation Method 4
The dryer can be heated via hot air passed into a chamber of the dryer in which the paper is fed. The hot air fed to the dryer can be hot air from at least one generator apparatus
Data Source
AI summary
Methods and apparatuses can be configured to facilitate sorting of paper from garbage and/or single stream recycling and subsequently process that separated paper to remove the contaminants from the paper so that the paper is in an acceptable condition for recycling. In some embodiments, the apparatus and method may utilize at least one dryer device that is configured to heat the paper without combusting the paper to remove water from the paper. The dryer device can also be configured to mix the paper as it is dried while also removing particulate contaminants off of the paper to clean the thrown away paper sufficiently so that the paper is in a condition that is acceptable for recycling into a paper product (e.g. a cardboard box, paper plate, sheets of paper, etc.).