Static Mixer Baffle Plate Radial Distribution
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Solution Overview
Problem
Static mixers for two-component cartridges face challenges in achieving homogeneous mixing with minimal flow resistance, especially when material strands enter coaxially, leading to incomplete mixing even after multiple elements.
Innovation Solution
A static mixer design featuring axially aligned, angularly offset double helix mixing elements with a baffle plate having a central pin and a star-like configuration that diverges to distribute the inner material flow radially, ensuring both components mix effectively from the outset, and additional baffle plates can be used between mixing element groups.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If multiple mixing elements are used to achieve homogeneous mixing, then mixing quality improves, but flow resistance increases
Solution Approach 1:
The baffle plate performs preliminary action by distributing and pre-mixing the material flow before it enters the mixing elements. The pin extends into the inner material component and the star-like plate distributes it radially, creating an initial mixed state that reduces the workload for subsequent mixing elements, thereby achieving homogeneous mixing with fewer elements and lower flow resistance
2Device complexity
If the mixer handles coaxially emerging material strands, then device simplicity is maintained, but mixing effectiveness deteriorates
Solution Approach 1:
The baffle plate with pin and star-like configuration performs preliminary action on the coaxially emerging strands before they enter the mixing elements. The pin extends into the inner material component and distributes it radially outward, while the star arms guide the outer material component, effectively separating and redistributing the coaxial strands into a configuration suitable for efficient mixing without complicating the overall device structure
Solution Approach 2:
The baffle plate transforms the axial flow configuration into a radial distribution pattern. The pin extends axially into the inner material component, then the star-like plate distributes it radially outward in the cross-sectional plane, effectively converting one-dimensional axial co-flow into two-dimensional radial separation, enabling effective mixing 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
This design achieves efficient, homogeneous mixing with reduced flow resistance by ensuring both components combine and are processed uniformly from the start, improving mixing efficiency and homogeneity.
Implementation Method 1
the preferably arcuately diverging design of the transition from the spigot to the star-like plate serves to effectively and evenly distribute the inner material flow radially outwards over the cross section in order to bring it together over the entire mixer cross section with the outer material component entering radially from the outside
Implementation Method 2
The static mixer according to the invention consists, in a known manner, of a number of axially lined-up and firmly connected mixing elements, each angularly offset from one another, each of which has the shape of double helix sections
Implementation Method 3
The mixing effect of such static mixers consists in subjecting the total material flow emerging from the two outlets of the chambers of the two-component cartridge to repeated strand divisions, direction-changing strand movements and strand merging
Data Source
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Figure 7~8
AI summary
Static mixer for arrangement in a mixing tube, the inlet of which is designed to receive two essentially coaxial strands of material components from the outlet of a two-component cartridge, with a plurality of axially arranged stationary mixing elements (2) which are arranged one after the other with a rotational offset, wherein at the inlet end of the static mixer at least before the first mixing element (2) a baffle plate (1) is arranged, which has an upwardly projecting central dome or pin (11) which transitions into the actual axially perpendicular baffle plate (13), which is designed in a star shape with a number of stem arms which form through-openings (14) between them.