Mixing Tool Blade with Curved Contour and Integrated Nozzle
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Solution Overview
Problem
Existing mixing devices face inefficiencies in material movement and additive distribution, leading to insufficient homogeneity and comminution of mixed materials.
Innovation Solution
A tool with radially extending blades featuring an outwardly curved end face and inwardly curved rear side, equipped with nozzles for additive introduction, creates speed differences that enhance laminar and turbulent flow conditions, improving mixing and comminution efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If conventional mixing tools with straight or simple curved blades are used, then the device structure remains simple, but the material movement is insufficient and homogeneity is poor
Solution Approach 1:
The tool blade features an outwardly curved end face and an inwardly curved rear side, creating a complex three-dimensional geometry that generates enhanced material movement and vortex formations. This curved geometry design directly addresses the insufficiency of conventional straight or simple curved blades by creating more effective flow patterns in the mixed material.
Solution Approach 2:
The blade design incorporates different curvature characteristics at different locations: the end face has outward curvature while the rear side has inward curvature. This local variation in geometric properties creates diverse flow conditions (laminar and turbulent) at different regions of the blade, improving overall mixing effectiveness without requiring complete redesign of the entire blade structure.
2Productivity
If conventional tools without integrated nozzles are used, then the device structure remains simple, but additive distribution efficiency is poor
Solution Approach 1:
The mixing tool blade and additive introduction nozzle are merged into a single integrated component. The nozzle is directly formed as part of the tool blade structure, eliminating the need for separate additive introduction devices. This integration improves additive distribution efficiency while avoiding the complexity of multiple separate components and their interconnections.
Solution Approach 2:
The tool blade serves multiple functions simultaneously: it performs mixing through its curved geometry and also functions as an additive introduction device through the integrated nozzle. This multi-functionality increases productivity by combining what would traditionally require separate devices into a single universal tool.
3Productivity
If tools without vortex-generating geometry are used, then the blade structure remains simple, but mixing efficiency and comminution are insufficient
Solution Approach 1:
The outwardly curved end face and inwardly curved rear side of the blade are specifically designed to generate vortex configurations in the mixed material. This curved geometry creates rotational flow patterns that enhance mixing efficiency and comminution effectiveness, directly addressing the insufficiency of conventional simple blade contours.
Solution Approach 2:
The blade geometry parameters (curvature radii, contour shapes) are optimized to create specific flow conditions including laminar and turbulent regions. By adjusting these geometric parameters, the design achieves enhanced mixing efficiency and vortex formation without requiring fundamentally different blade concepts.
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 tool achieves improved mixing and comminution results by creating strong vortex configurations and efficient additive distribution, ensuring better homogeneity and processing of mixed materials.
Implementation Method 1
velocity differences occur between the flows at the front and rear faces, resulting in laminar and turbulent flow conditions in the mixture in the front and rear face regions
Implementation Method 2
Due to the special contour of the tool blade, velocity differences occur between the flows at the front and rear faces, resulting in laminar and turbulent flow conditions
Implementation Method 3
At a sufficient rotational speed, the tool not only mixes but also comminutes the material. The end face of the tool blades, in particular, ensures the comminution of the material by impacting it at high speed.
Implementation Method 4
The introduction of additives via the nozzles, in combination with the blade design, results in further mixing and a more even distribution of the additives.
Data Source
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AI summary
The invention relates to a tool (1) for a mixing device with a container for receiving the material to be mixed, in which the tool (1) rotates in a first direction of rotation (5) about an axis of rotation (2) in order to crush and/or mix the material. A rotating shaft (3) with at least one tool blade (7, 8, 17a, 17b, 18a, 18b, 19a, 19b) extending radially outwards from the rotating shaft (3) forms, in the first direction of rotation (5), an end face (9) with a contour convex outwards in a plane perpendicular to the axis of rotation (2) and, in the opposite direction, a rear face (10) with a contour convex inwards in a plane perpendicular to the axis of rotation (2). The tool blade (7, 8, 17a, 17b, 18a, 18b, 19a, 19b) has at least one nozzle (20) for supplying gases, liquids and/or solids. The invention further relates to a mixing device with a corresponding tool.