Separator Guide Vane Apportioning Gas-Solids Flow
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Solution Overview
Problem
Traditional wind separators that introduce feedstock and separating air jointly suffer from poor sorting precision, leading to inefficient separation of coarse and fine materials, with existing solutions either compromising separation accuracy or increasing energy consumption.
Innovation Solution
A separator design featuring a separator housing with a separator wheel and guide vane assembly, where an annular gap between the guide vane assembly and the housing allows for the inlet volume flow to be apportioned into two partial flows, one bypassing the guide vane assembly and the other flowing through it, creating a swirling effect that enhances separation accuracy.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the gas-solids mixture flows entirely through the guide vane assembly, then the separator structure is simple, but the sorting precision deteriorates due to homogeneous flow causing wrong sorting
Solution Approach 1:
The guide vane assembly is divided into multiple guide vanes arranged radially outward from the separator wheel, creating separate flow paths. This segmentation allows the gas-solids mixture to be distributed across multiple channels, preventing homogeneous flow and improving sorting precision by enabling differential interaction with the separator wheel.
Solution Approach 2:
The guide vanes are arranged radially outward from the separator wheel in a three-dimensional configuration, creating a radial flow pattern. This dimensional arrangement transforms the flow from a simple linear path through the guide vane assembly to a multi-dimensional radial flow that enhances separation accuracy.
2Measurement precision
If fittings are added to swirl the feedstock and improve separation, then sorting precision improves, but energy consumption increases due to additional resistance
Solution Approach 1:
The guide vane assembly is merged with the separator wheel structure, with guide vanes arranged radially outward from the separator wheel. This integration eliminates the need for separate fittings to create swirling flow, as the guide vanes themselves generate the necessary flow patterns. The combined structure reduces additional resistance and energy consumption while maintaining separation accuracy.
Solution Approach 2:
The guide vane assembly self-generates the swirling flow needed for accurate separation through its radial arrangement. The structure automatically creates the necessary flow patterns without requiring additional energy-input devices like fittings, making the system self-sufficient and energy-efficient.
3Measurement precision
If the guide vanes are arranged vertically, then the separator structure is simplified, but the flow uniformity deteriorates leading to increased wrong sorting
Solution Approach 1:
The guide vanes are arranged radially outward from the separator wheel in a curved, radial pattern rather than straight vertical lines. This curved arrangement follows the radial geometry, creating more uniform flow distribution across the separator wheel surface and reducing wrong sorting while maintaining structural simplicity.
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 improves separation accuracy by allowing for controlled apportioning of gas-solids mixture flows, reducing incorrect sorting and enhancing the efficiency of the separation process without increasing power demand.
Implementation Method 1
Coarse particles, on the other hand, strike against the fins and are bounced back in this way and finally drop down because of gravity.
Implementation Method 2
fine or small particles are influenced more strongly and carried along by the gas stream than are large or coarse particles
Implementation Method 3
Fine particles by virtue of the flow and despite the rotation of the separator wheel can get in between the fins of the separator wheel
Data Source
AI summary
A separator having a separator housing, a separator wheel arranged inside the separator housing and having an axis of rotation (X), and a guide vane assembly arranged in the separator housing, an annular space being provided between the guide vane assembly and the separator housing radially (R) perpendicular to the axis of rotation (X). In order to increase separation performance, a peripheral annular gap is provided in the vertical direction between the guide vane assembly and a cover.