Colloidal Mixer With Decoupled Drives For Viscosity Adaptation
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Solution Overview
Problem
Existing colloidal mixers struggle to maintain adequate mixing quality when starting materials or their properties change, particularly with high-density suspensions of solids and low bulk density, due to the coupling of premixing and dispersing tools which limits their ability to handle a wide range of viscosities.
Innovation Solution
A colloidal mixer design with rotationally decoupled premixing and dispersing devices, each driven by separate motors, allowing for independent speed control and operation, enabling effective mixing of low to high viscosity suspensions and dispersions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If the premixing device and dispersing device are coupled and driven by a common drive unit, then the device complexity is reduced and the structure is simplified, but the mixing quality deteriorates when handling suspensions with varying viscosities and densities
Solution Approach 1:
The mixer is divided into two functionally independent units: a premixing device with its own drive unit for rough mixing of solids into liquid, and a dispersing device with a separate drive unit for colloidal breakdown. This segmentation allows each device to be optimized for its specific function and operating conditions, resolving the contradiction between structural simplicity and mixing quality.
2Productivity
If the dispersing device operates at high speed for effective colloidal breakdown, then the dispersing efficiency is improved, but the premixing device cannot effectively stir in solids of low bulk density due to the coupled high-speed operation
Solution Approach 1:
The system employs two independently controllable drive units that can operate at different speeds simultaneously. The dispersing device can rotate at high speed for effective colloidal breakdown while the premixing device operates at a lower, optimized speed for gently stirring in low-density solids, allowing both functions to perform optimally without mutual interference.
3Adaptability or versatility
If a single mixer design is used for all viscosity ranges, then the device versatility is improved, but the mixing quality deteriorates for specific viscosity ranges
Solution Approach 1:
The dual-device system with independently controlled drive units creates a universal mixer capable of handling suspensions across a wide viscosity range. By adjusting the speed and operational parameters of each drive unit separately, the system can adapt to low-viscosity, high-viscosity, and intermediate viscosity applications, maintaining high mixing quality across all ranges.
Data Source
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AI summary
The invention relates to a colloidal mixer and a method for processing building materials with a mixing trough (10) in which a premixing device (20) and a dispersing device (30) are arranged, and drive means (40, 50) for actuating the premixing device (20) and the dispersing device (30). The premixing device (20) and the dispersing device (30) are rotationally decoupled. For independent actuation of the premixing device (20) and the dispersing device (30), two separate drives (40, 50) are arranged, one drive (40) being for the premixing device (20) and a second drive (50) being for the dispersing device (30).