Integrated Feed Pump for High Viscosity Liquid Mixing
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional mixing devices face challenges in processing liquids with high viscosity, as the suction effect is insufficient to maintain desired liquid throughput and solid supply, leading to reduced performance and the need for complex external pumps.
Innovation Solution
An integrated feed pump is positioned between the liquid inlet and the mixing tool, ensuring stable liquid throughput and improved suction effect, even with high viscosity liquids, while maintaining efficient solid supply without obstructing the mixing process. This configuration includes a centrifugal pump with curved vanes and a rotor-stator device for enhanced mixing and dispersion, along with a bypass line and pressure piston for precise control and cleaning efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If an external positive displacement pump is connected to increase suction, then liquid throughput is maintained, but device complexity increases
Solution Approach 1:
The feed pump is integrated directly into the mixing device housing, combining the pumping function with the existing mixing chamber structure. This eliminates the need for separate external pumps and their associated connections, thereby maintaining liquid throughput while reducing overall device complexity
Solution Approach 2:
The feed pump serves multiple functions: it generates suction to draw in liquid, maintains stable liquid throughput, and works in conjunction with the mixing tool to create turbulent mixing. This multi-functionality replaces what would otherwise require multiple separate components
2Productivity
If the mixing tool rotates to create turbulent zone, then mixing effectiveness is improved, but suction effect is reduced when processing high viscosity liquids
Solution Approach 1:
The feed pump is positioned to deliver liquid to the mixing zone before the solid material is fully incorporated. This preliminary liquid delivery ensures that the mixing tool operates with adequate liquid flow even when processing high viscosity materials, maintaining both suction effect and mixing effectiveness
Solution Approach 2:
The feed pump acts as an intermediary between the liquid source and the mixing tool, regulating liquid flow to ensure consistent delivery regardless of the viscosity of the material being processed. This mediation maintains the suction effect while supporting effective mixing
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 consistent liquid and solid flow into the mixing chamber, preventing breakdowns and maintaining efficient mixing even with high viscosity liquids, while keeping the design compact and easy to clean, with improved dispersion and prevention of lumps and clumping.
Implementation Method 1
The feed pump (14) is formed by a centrifugal pump with a feed wheel (15) and a plurality of feed vanes (16) arranged on the feed wheel (15)
Implementation Method 2
During operation, a highly turbulent zone is created by rotating the mixing tool. This creates a negative pressure, through which the solid and the liquid are sucked into the mixing chamber.
Implementation Method 3
This creates a negative pressure, through which the solid and the liquid are sucked into the mixing chamber.
Data Source
Figure 1
Figure 2
Figure 3
AI summary
The invention relates to a mixing device (1) for mixing powdery and/or granular particles or similar free-flowing solids with at least one liquid, the mixing device comprising a feed chute (5) for a solid, an inlet (17) for the liquid; at least one mixing tool (8) rotatable about an axis in a mixing chamber (7), and an outlet (6) for the mixture, wherein a feed pump (14) is arranged between the inlet and the mixing tool.