Refining Rotor and Mesh Filter Flow Rectification at Discharge
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Solution Overview
Problem
In existing refining devices, refined products tend to accumulate near the discharge port, leading to difficulties in smooth discharge and reduced production efficiency, as well as potential adverse effects on sheet quality.
Innovation Solution
A refining device with a casing, rotor, filter member, and flow rectifying member is designed to facilitate the smooth discharge of refined products by using a rotor with blades, a filter member with a mesh, and a flow rectifying member positioned between the filter member and the casing to guide airflow towards the discharge port.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If the refining device operates with high refining degree to improve product quality, then the refined product becomes more prone to accumulation near the discharge port, but this accumulation causes discharge difficulties and reduces productivity
Solution Approach 1:
A flow rectifying member is introduced as an intermediary component between the filter member and the discharge port. This member has a specific geometric structure with flow guiding surfaces that mediate the airflow and refined product movement, transforming the chaotic flow pattern into a controlled directional flow that prevents accumulation while maintaining high refining degree operation
Solution Approach 2:
The flow rectifying member features non-uniform geometric characteristics with flow guiding surfaces having different orientations and angles at different locations. The structure provides localized flow control tailored to specific regions of the discharge path, creating optimal flow conditions near the discharge port without compromising the overall refining process quality
2Productivity
If the flow rate of gas in the casing is increased to improve discharge speed, then the refined product is more likely to be carried away quickly, but this reduces the residence time needed for complete refining and may affect product quality
Solution Approach 1:
The flow rectifying member acts as a mediator that decouples the relationship between gas flow rate and discharge speed. It provides a controlled flow path that allows optimized residence time for refining while maintaining efficient discharge, preventing the direct trade-off between speed and quality by introducing an intermediate flow control mechanism
Solution Approach 2:
The geometric parameters of the flow rectifying member (surface angles, channel dimensions, protrusion height) are optimized to change the flow characteristics. These parameter adjustments create a flow pattern that maintains adequate residence time for quality refining while enabling fast discharge rates, resolving the contradiction through physical parameter optimization
3Manufacturing precision
If the mesh opening of the filter member is reduced to improve refining quality, then the refined product becomes more prone to accumulation, but this accumulation leads to frequent stops and reduced productivity
Solution Approach 1:
The flow rectifying member serves as an intermediary that compensates for the stricter filtering conditions imposed by smaller mesh openings. It creates optimized flow patterns that prevent the refined product from accumulating near the discharge port, allowing the use of finer mesh openings for higher quality refining without the operational interruptions caused by accumulation
Solution Approach 2:
The flow rectifying member performs preliminary flow organization in the discharge region, creating controlled flow paths before the refined product reaches the discharge port. This preliminary action prevents accumulation by ensuring continuous movement of the refined product, enabling the use of finer mesh openings without operational stops
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 solution ensures efficient and uninterrupted discharge of refined products, maintaining production efficiency and improving sheet quality by preventing accumulation near the discharge port.
Implementation Method 1
a rotor that is rotatably installed in the casing and has a plurality of blades disposed radially from a rotation axis
Implementation Method 2
a filter member that is installed in the casing to cover an outer periphery of the rotor and is at least partially made of a mesh
Implementation Method 3
a flow rectifying member that is positioned in an annular space between the filter member and an inner peripheral surface of the casing and protrudes toward the discharge port
Data Source
AI summary
There is provided a refining device including: a casing that has a supply port to which a raw material containing a fiber is supplied and a discharge port for discharging a refined product obtained by refining the raw material; a rotor that is rotatably installed in the casing and has a plurality of blades disposed radially from a rotation axis; a filter member that is installed in the casing to cover an outer periphery of the rotor and is composed at least partially of a mesh; and a flow rectifying member that is positioned in an annular space between the filter member and an inner peripheral surface of the casing and protrudes toward the discharge port.