Spiral Conduit Particle Separator with Offset Sidewalls
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Solution Overview
Problem
Traditional cyclone separators are inefficient due to short circuit flow and limited ability to classify particles into more than two classes, as they rely on fluid spinning all the way to the bottom, leading to turbulence and reduced separation effectiveness.
Innovation Solution
A spiral conduit with elongate channels having offset sidewalls allows for efficient fluid transfer and separation, enabling particles to be classified into multiple classes by directing fluid through channels with alternating rotational directions, reducing turbulence and enhancing separation efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If traditional cyclone separators are used with fluid spinning all the way to the bottom, then particle separation occurs, but short circuit flow causes course particles to enter the inner stream and reduces separation effectiveness
Solution Approach 1:
The apparatus divides the single spiral path into multiple elongate channels (first, second, third channels) with different curvature radii from the axis. Each channel acts as a separate segmentation for particle separation, allowing particles to be classified into multiple classes (at least three classes) rather than just two, thereby preventing short circuit flow and improving classification efficiency
Solution Approach 2:
Each elongate channel has distinct local characteristics with different curvature radii from the axis of the spiral path. The first channel has a first curvature radius, the second channel has a second curvature radius, and the third channel has a third curvature radius. This local quality differentiation allows particles of different sizes and weights to follow different spiral paths and be separated into different classes
2Adaptability or versatility
If traditional cyclone separators classify particles into two classes, then separation is achieved, but the ability to separate into more than two classes is limited
Solution Approach 1:
The elongate channels are arranged in a nested configuration along the spiral path, with each channel positioned at a different curvature radius from the axis. The channels share longitudinal sidewalls, creating a compact nested structure that enables multiple particle class separations without proportionally increasing device complexity
Solution Approach 2:
The apparatus utilizes the radial dimension from the axis of the spiral path to create multiple separation classes. By positioning channels at different curvature radii (first, second, and third curvature radii), the system transforms a single-dimension separation into a multi-dimensional separation process, enabling classification into at least three particle classes
3Productivity
If fluid flows through traditional cyclone separators, then particle separation occurs, but turbulence and fluid resistance reduce separation efficiency
Solution Approach 1:
The elongate channels are designed with smooth curved transitions and continuous spiral geometry, avoiding sharp angles or abrupt changes in flow direction. This curvature-based design reduces turbulence and fluid resistance, allowing efficient particle separation with minimal energy loss
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 design achieves efficient particle grading into multiple classes with minimal fluid resistance and turbulence, eliminating short circuit flow, and allows for scalability to separate a high number of classes, significantly improving separation efficiency.
Implementation Method 1
an inlet for directing a particulate suspension into the conduit under pressure and along the spiral path
Implementation Method 2
at least first and second of the elongate channels are approximately circular in cross section and comprise a shared longitudinal sidewall, wherein the shared longitudinal sidewall comprises opposed uppermost and lowermost sidewall sections that are laterally offset from one another relative to the axis of the spiral path to allow for transfer of helically flowing fluid between the first and second of the elongate channels
Data Source
AI summary
An apparatus for separating particles from a particulate suspension comprises a conduit comprising a plurality of elongate channels extending in adjacent alignment along a spiral path at different curvature radii from an axis of the spiral path. Longitudinal sidewalls of the elongate channels are fluidly joined together to allow for transfer of fluid between them. The apparatus also comprises an inlet for directing a particulate suspension into the conduit and outlets that direct fluid from the particulate suspension out from different discharge positions. At least first and second of the elongate channels are approximately circular in cross section and comprise a shared longitudinal sidewall, wherein the shared longitudinal sidewall comprises opposed uppermost and lowermost sidewall sections that are laterally offset from one another relative to the axis of the spiral path to allow for transfer of helically flowing fluid between the first and second of the elongate channels.