Fibre Processing Apparatus Using Alternating Compression and Mechanical Stages
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Solution Overview
Problem
Existing fibre processing methods, such as high-pressure homogenization and microfluidization, face issues like nozzle clogging, high energy consumption, and challenges in scaling up, while mechanical processing leads to heterogeneous modifications.
Innovation Solution
A fibre processing apparatus that alternates between compression and mechanical modification stages, using a combination of fluid pressure and mechanical components to restructure fibres, with sequential and alternating sections to enhance homogeneity and reduce physical damage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If high-pressure homogenization is used for fibre modification, then fibre delamination and surface area increase are improved, but nozzle clogging and energy consumption increase
Solution Approach 1:
The apparatus segments the fibre modification process into multiple sequential modification sections (at least three sections), where fibres undergo progressive delamination and restructuring through repeated compression and mechanical action rather than a single high-pressure pass, avoiding nozzle clogging while achieving thorough delamination
Solution Approach 2:
The apparatus applies preliminary compression and mechanical modification actions in the first modification section before high-pressure homogenization in subsequent sections, pre-softening and restructuring fibres to reduce the risk of clogging during high-pressure processing while enhancing overall delamination effectiveness
2Manufacturing precision
If high-pressure homogenization is used for fibre modification, then fibre surface area increases, but energy consumption increases
Solution Approach 1:
The energy-intensive homogenization process is segmented into multiple sections with alternating compression and mechanical modification stages, distributing the energy input across sequential operations rather than requiring extremely high pressure in a single pass, achieving comparable surface area with reduced peak energy consumption
Solution Approach 2:
The apparatus merges compression-based modification and mechanical modification into a unified multi-section process that works synergistically, combining the internal restructuring benefits of compression with the surface delamination benefits of mechanical action to achieve high surface area at lower energy cost
3Productivity
If mechanical processing is used for fibre modification, then fibre separation is improved, but modification homogeneity deteriorates
Solution Approach 1:
The mechanical processing is segmented into multiple modification sections where fibres undergo repeated cycles of compression and mechanical action, ensuring that all fibres experience multiple modification opportunities rather than a single heterogeneous mechanical event, thereby improving uniformity while maintaining separation efficiency
Solution Approach 2:
The apparatus employs periodic alternation between compression-based modification and mechanical modification across sequential sections, creating a rhythmic pattern of internal restructuring followed by mechanical separation that ensures homogeneous treatment while maintaining high fibre separation productivity
4Manufacturing precision
If compression-based modification is used for fibre restructuring, then internal fibre modification is improved, but processing time increases
Solution Approach 1:
The compression-based internal modification is segmented into multiple sequential sections where fibres undergo progressive restructuring at lower pressures over shorter durations in each section, achieving cumulative internal modification equivalent to prolonged single-stage compression but with reduced overall processing time
Solution Approach 2:
The apparatus applies preliminary mechanical separation and surface delamination in early modification sections before compression-based internal restructuring in subsequent sections, preparing fibres for more efficient internal modification that requires less time to achieve the desired degree of internal restructuring
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 apparatus achieves more homogeneous fibre modification with less fibre width reduction and physical damage, improving efficiency and reducing wear on mechanical components, while maintaining high reproducibility and scalability.
Implementation Method 1
Compression-based fibre modification applies forces to the fibrous material which act on the network of fibres in the material to separate individual fibres from the network and further modify these fibres
Implementation Method 2
Mechanical processing of the fibres involves subjecting fibres to mechanical components which may cut, grind or otherwise process the fibres through an processor
Implementation Method 3
A microfluidizer uses a pump to create high pressure to disintegrate fibres using shear forces. Fibre suspension is fed into the inlet and then forced through a Y-type or Z-type narrow channel under high pressure. This results in acceleration of the suspension that creates high shear rate and eventually breaks up the fibres
Implementation Method 4
The delamination of fibres is advanced by extremely high shearing forces, high velocity, rapid pressure drops and frictional forces
Data Source
AI summary
The present invention provides a fibre processing apparatus for the modification fibrous material. The apparatus includes at least one housing body, which has an inlet and an outlet through which fibrous material may flow along a flow path, in use. The housing body further comprises a plurality of fibre modification sections sequentially arranged along the flow path. The apparatus also includes one or more rotatable shaft members provided within the housing body and provided to extend along the flow path from a first end in a first modification section to a second, opposing end in a final modification section. A first plurality of the modification sections includes compression and/or pressure-based modification means, and a second plurality of the modification sections includes mechanical modification means.