Plastic Recycling Plant Rubbing Chamber Homogenization
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Solution Overview
Problem
Current recycling methods for heterogeneous plastic materials are inefficient, as they require complex and expensive plants with multiple processing stages, and the resulting recycled products often lack structural homogeneity due to internal discontinuities, making them unsuitable for extrusion or hot molding processes.
Innovation Solution
A recycling plant with a rubbing and drying chamber that uses a rotatable roller rotor with protrusions to homogenize and dry plastic materials, achieving a semi-melted state suitable for extrusion or hot molding, while also incorporating degassing and heating mechanisms to ensure effective processing and material homogeneity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If conventional recycling methods with multiple processing stages are used, then plastic materials can be processed, but the plant structure becomes complex and expensive
Solution Approach 1:
The patent combines multiple processing functions (rubbing, drying, heating, extrusion) into a single integrated plant structure. The rubbing chamber with rotatable roller rotor, drying section with heating elements, and extrusion system are merged into one continuous processing unit, eliminating the need for separate processing stages and reducing overall plant complexity.
Solution Approach 2:
The processing plant is designed to perform multiple functions simultaneously within a single system. The rubbing chamber not only reduces particle size but also dries and heats the plastic material, while the extrusion system processes the homogenized material. This multi-functionality reduces the number of separate devices needed.
2Productivity
If heterogeneous plastic materials are directly reused in extrusion processes, then processing is simplified, but the recycled products lack structural homogeneity
Solution Approach 1:
The patent changes the physical parameters of heterogeneous plastic materials through rubbing, drying, and heating processes. The rotatable roller rotor with protrusions mechanically breaks down and rubs the material, while heating elements raise the temperature to achieve a semi-melted state. These parameter changes transform the material into a homogeneous paste suitable for extrusion, resolving the contradiction between processing efficiency and structural homogeneity.
Solution Approach 2:
The patent utilizes phase transition by heating the plastic material to a semi-melted state during the rubbing and drying process. This partial melting transforms the heterogeneous solid plastic particles into a more homogeneous semi-fluid paste, which can then be effectively extruded. The phase change enables both efficient processing and production of homogeneous recycled products.
3Adaptability or versatility
If plastic materials are incorporated into a polyethylene matrix, then difficult-to-recycle plastics can be processed, but internal discontinuities reduce structural strength
Solution Approach 1:
Instead of simply incorporating difficult-to-recycle plastics into a polyethylene matrix, the patent applies parameter changes through intensive rubbing, drying, and heating. The rotatable roller rotor with protrusions mechanically breaks down the plastic structure, while heating achieves a semi-melted state. This transforms the material into a homogeneous paste that can be extruded as a unified structure, eliminating internal discontinuities and improving structural strength while maintaining versatility in processing various plastic types.
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 plant simplifies the recycling process, producing a homogeneous recycled plastic material that can be directly used in extrusion or hot molding, eliminating the need for separate material addition and enhancing structural integrity.
Implementation Method 1
a processing stage 3 of the plastic material to be recycled and comprising a rubbing and drying chamber 5 of the fed plastic material suitable for achieving a reduction in the volume and homogenization of the processed material inside the rubbing and drying chamber 5
Implementation Method 2
The plant simplifies the recycling process, producing a homogeneous recycled plastic material that can be directly used in extrusion or hot molding
Implementation Method 3
incorporating degassing and heating mechanisms to ensure effective processing and material homogeneity
Implementation Method 4
a rubbing and drying chamber 5 of the fed plastic material suitable for achieving a reduction in the volume and homogenization of the processed material
Data Source
AI summary
A plant of recycling heterogeneous plastic materials comprises: an infeed stage (2) of the plastic material to be recycled, a processing stage (3) of the plastic material fed by said infeed stage (2) and an extraction stage (4) of the plastic material processed in said processing stage (3), wherein said processing stage (3) of the plastic material comprises a rubbing and drying chamber (5) of the fed plastic material suitable for achieving a reduction of the volume and homogenization with drying of the processed material inside said rubbing and drying chamber (5).