Material Stripping Apparatus for Polymer Mixing Element
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Solution Overview
Problem
Current laboratory-scale equipment for melting, mixing, and processing polymers is often expensive, cumbersome, difficult to clean and maintain, and lacks versatility, making it inefficient for testing and developing new polymer formulations.
Innovation Solution
A material stripping apparatus that removes residue from an external mixing element as it is withdrawn from a vessel, featuring a rotatable stripping element and a support assembly that covers the vessel opening to prevent material escape and secure the vessel in place, allowing for easy access and efficient cleaning.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If laboratory-scale polymer processing equipment is used, then polymer melting and mixing can be achieved, but the equipment becomes expensive and cumbersome
Solution Approach 1:
The apparatus is divided into distinct functional segments: a vessel for containing polymer material, a separate mixing element that can be inserted and removed, and a stripping element that removes residue. This segmentation allows each component to be optimized independently and simplifies cleaning and maintenance procedures.
Solution Approach 2:
The mixing element is designed to be extractable from the vessel, and the stripping element is positioned to remove material residue as the mixing element is withdrawn. This extraction approach eliminates the need for complex disassembly procedures and enables easy cleaning of the vessel interior.
2Productivity
If mini-production equipment is used, then polymer mixing can be performed, but cleaning and maintenance becomes difficult
Solution Approach 1:
The stripping element is positioned to remove material residue from the mixing element during the withdrawal process itself, before the mixing element is fully removed from the vessel. This preliminary stripping action prevents residue from hardening or cooling on the mixing element, making subsequent cleaning much easier.
Solution Approach 2:
The stripping element automatically removes residue from the mixing element as it is withdrawn from the vessel, without requiring additional manual intervention or complex cleaning mechanisms. The system performs its own cleaning function as part of the normal operating cycle.
3Productivity
If production-type extruders are used, then continuous polymer processing is achieved, but set-up time and process control requirements increase
Solution Approach 1:
The apparatus allows dynamic adjustment of processing parameters and easy reconfiguration for different polymer materials. The mixing element can be quickly removed and replaced, and the vessel can be rapidly cleaned and reprepared, enabling fast changeover between different processing tasks without extensive retooling.
4Adaptability or versatility
If laboratory mixing equipment is used, then polymer evaluation can be performed, but space requirements and cost increase
Solution Approach 1:
The stripping element and vessel support structure are combined into an integrated assembly that performs multiple functions: containing the vessel, supporting the mixing element during insertion and withdrawal, and providing the stripping action. This merging reduces the number of separate components and minimizes the overall footprint of the apparatus.
Data Source
AI summary
An apparatus for removing material residue from an external mixing element as it is being withdrawn from an external vessel containing the material mixed by the mixing element. The apparatus includes a stationary support member, a repositionable support assembly, and a rotatable material stripping element held captive by at least one element of the repositionable support assembly.