Tapered Container for Microplastic Separation Accuracy
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Solution Overview
Problem
Existing sample purification methods struggle to accurately collect microplastics from mixed samples after introducing a heavy solution for gravity separation, as components tend to be retained in the container rather than flowing out with the supernatant.
Innovation Solution
A sample purification apparatus with a container designed to have a horizontal cross-sectional area that gradually decreases upward from a prescribed height to the flow-out port, ensuring that components lighter than the heavy solution are effectively collected from the supernatant without retention in the container.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a heavy solution is introduced for gravity separation to collect microplastic from mixed samples, then separation based on specific gravity difference is achieved, but components lighter than the heavy solution are retained in the container instead of flowing out with the supernatant
Solution Approach 1:
The container employs a curved tapered shape where the horizontal cross-sectional area gradually decreases from bottom to top, creating a smooth flow path that guides the supernatant and suspended lightweight components toward the flow-out port, preventing retention and improving collection efficiency
Solution Approach 2:
The container's geometric parameters are specifically designed with a tapered configuration where the cross-sectional area changes continuously along the height, optimizing fluid dynamics to ensure complete discharge of supernatant and suspended components without retention
2Ease of manufacture
If the container has a uniform cross-sectional area, then manufacturing is simpler, but components are retained in the container reducing purification accuracy
Solution Approach 1:
The container features a tapered curved shape with gradually changing cross-sectional area, which while slightly more complex to manufacture than a uniform cylinder, provides superior flow characteristics that prevent component retention and enhance purification accuracy
Solution Approach 2:
The container design transitions from a two-dimensional uniform cross-section to a three-dimensional tapered form, utilizing the vertical dimension to create a flow gradient that drives complete supernatant discharge while maintaining manufacturability
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 design prevents retention of the target component in the container, allowing for accurate purification of mixed samples by ensuring that the supernatant efficiently flows out and the component is collected, thereby enhancing the accuracy and efficiency of the purification process.
Implementation Method 1
a container for separating, with a heavy solution, the mixed sample based on a specific gravity difference
Implementation Method 2
the container has a horizontal cross-sectional area which gradually decreases upward starting from a prescribed height of the container to a height where the flow-out port is located
Data Source
AI summary
A sample purification apparatus includes a container for separating, with a heavy solution, a mixed sample based on a specific gravity difference and a collector that collects a component in the mixed sample lighter in specific gravity than the heavy solution by receiving a supernatant flowed out from the container. The container includes a flow-out port provided in an uppermost portion of the container and a flow-out path that guides the supernatant flowed out through the flow-out port to the collector. the container has a horizontal cross-sectional area which gradually decreases upward starting from a prescribed height of the container to a height where the flow-out port is located.