Moisture Control in Waste Disintegration for Composite Board Quality
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Solution Overview
Problem
Current methods for reducing waste destined for landfills or incinerators often result in inferior mechanical properties in composite boards due to variability in moisture content of raw paper and plastic materials, leading to pulpy masses and suboptimal fragment size distribution.
Innovation Solution
Drying raw paper and plastic materials to a moisture content of 30 percent or less before disintegration, followed by controlled drying and disintegration processes to achieve a target moisture content, ensuring proper fragment size distribution and mechanical properties in the finished boards.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If waste materials are disintegrated without moisture control, then processing is simpler and faster, but the fragment size distribution becomes suboptimal and mechanical properties deteriorate
Solution Approach 1:
The patent applies preliminary drying action before disintegration to control moisture content at 30% or less. This preliminary moisture reduction prepares the waste materials in advance, ensuring that when disintegration occurs, the materials achieve optimal fragment size distribution and mechanical properties without compromising processing efficiency.
2Manufacturing precision
If moisture content is reduced to 30 percent or less before disintegration, then fragment size distribution and mechanical properties improve, but additional drying time and energy are required
Solution Approach 1:
The patent changes the moisture content parameter to 30% or less as a critical threshold before disintegration. This specific parameter control optimizes the balance between drying time investment and the quality outcomes in terms of fragment size distribution and mechanical properties of the composite boards.
3Adaptability or versatility
If moisture content varies in raw materials, then processing is more flexible, but internal bond strength and modulus of rupture deteriorate
Solution Approach 1:
The patent implements moisture content monitoring and control as a feedback mechanism before disintegration. By measuring and adjusting moisture content to 30% or less, the system ensures consistent internal bond strength and modulus of rupture in the finished composite boards, while still accepting varied raw material inputs.
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
This approach results in composite boards with improved internal bond strength, modulus of rupture, and mechanical flexibility, suitable for roofing and construction applications, while effectively reducing waste volume and promoting sustainable recycling.
Implementation Method 1
drying the batch of paper and plastic material to achieve a target moisture content
Data Source
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Figure 3A~3B
AI summary
A method of generating paper and plastic fragments includes measuring a moisture content of a batch of paper and plastic material, drying the batch of paper and plastic material to achieve a target moisture content, and disintegrating the batch of paper and plastic material, after drying, to form a plurality of paper and plastic fragments.