Test Stand for Determining Degassing Parameters in Plastic Recyclate
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Solution Overview
Problem
Determining suitable operating parameters for degassing and deodorization of plastic particles is complex and time-consuming, especially when dealing with varying qualities of plastic recyclate, making the process energy-intensive and cost-intensive.
Innovation Solution
A compact, mobile test stand is used to determine operating parameters by simulating the degassing process with a test quantity of plastic particles, allowing for flexible adjustment of temperature, pressure, and moisture levels, enabling quick and cost-effective determination of optimal conditions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If operating parameters are determined empirically and/or experimentally for each bulk material, then the degassing and/or deodorization process can be optimized for specific materials, but the effort, time, and cost required to determine these parameters increases significantly
Solution Approach 1:
The patent uses a test stand to create a scaled-down copy of the actual degassing system. By determining operating parameters on this smaller test system with test quantities of bulk material, the same parameters can be transferred to the full-scale system, eliminating the need for time-consuming empirical determination for each material on the actual system.
Solution Approach 2:
The test stand allows operating parameters to be determined in advance before actual production processing. This preliminary determination of temperature, pressure, air volume, humidity, and degassing time parameters enables direct transfer to production without time loss during material changes.
2Adaptability or versatility
If operating parameters are determined empirically for varying qualities of plastic recyclate, then the process can adapt to different material qualities, but the complexity and cost of determining suitable parameters increases
Solution Approach 1:
The test stand provides a simplified copying system that can handle different bulk material qualities without requiring complex determination procedures. The same test stand infrastructure handles variable materials by simply changing the test quantity being processed, maintaining adaptability while avoiding increased complexity.
3Measurement precision
If a large test quantity is used to simulate real plant conditions, then scaling effects are minimized and realistic process depiction is achieved, but the device size and mobility are reduced
Solution Approach 1:
The test stand uses parameter scaling rather than full-scale physical replication. By carefully selecting test quantities between 1 l and 100 l and adjusting test parameters (temperature, pressure, air volume, humidity, degassing time), the system achieves realistic process simulation without requiring a full-scale device, thus maintaining compactness and mobility.
4Ease of operation
If the test stand is designed to be mobile and transportable, then flexibility and ease of handling are improved, but the structural complexity and potential stability issues increase
Solution Approach 1:
The test stand is designed as a modular, segmented structure that can be easily assembled and disassembled. The frame with casters/wheels and detachable handles represents segmentation that enables mobility while keeping each component simple and manageable, avoiding the need for complex integrated mobile structures.
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 simplifies the determination of operating parameters, reduces the effort required, and allows for efficient degassing and deodorization, making the process less time-consuming and cost-intensive.
Implementation Method 1
the test quantity is heated in the test chamber with defined operating parameters, in particular with a defined temperature
Implementation Method 2
When degassing and/or deodorizing the bulk material, it is flushed with a gas, in particular air, to remove the volatile components
Data Source
Figure 1
AI summary
A device (1) for determining operating parameters for degassing and/or deodorizing plastic particles comprises at least one test chamber (3) for degassing and/or deodorizing a test quantity of plastic particles, wherein each test chamber (3) has a filling opening for filling the test quantity, a removal opening (10) for removing bulk material, a venting opening (6) for venting the test chamber (3), wherein a pressurized gas line (31) for supplying pressurized gas and a heating element (22) and/or a steam line (32) for supplying steam and a steam generator (16) are connected to a supply opening (35) of the test chamber (3).