Pipe-Type Flocculation Mixer Eliminates Blind Spots
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Solution Overview
Problem
Existing flocculation mixing systems, including tanks and pipeline mixers, suffer from insufficient or non-uniform mixing due to structural blind spots and inadequate mixing speed, leading to unstable and inefficient flocculation effects, increased agent consumption, and blade deformation.
Innovation Solution
A pipe-type flocculation mixer with a circular mixing pipe and a mixing blade accommodated within, where the mixing pipe has blind ends and notches for direct communication with feeding and discharging pipes, and an agent feeding chamber for uniform flocculant distribution, ensuring no blind spots and enhanced mixing efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If a flocculation mixing tank with a mixer is used, then sludge and flocculants can be blended, but blind spots in the tank body structure lead to insufficient or non-uniform mixing
Solution Approach 1:
The mixing process is segmented into multiple stages with different mixing intensities. The device uses a first mixing mechanism for initial blending and a second mixing mechanism for thorough uniform mixing, allowing each stage to optimize for its specific function and eliminate blind spots through coordinated operation
Solution Approach 2:
The invention transitions from a single-tank three-dimensional mixing approach to a multi-stage sequential mixing process. By adding the dimension of time and sequence with multiple mixing mechanisms operating in stages, the system achieves complete coverage without blind spots while managing structural complexity
2Productivity
If the mixer speed is increased to achieve thorough mixing, then mixing efficiency improves, but the mixing blade easily deforms and fractures
Solution Approach 1:
The mixing operation is divided into two stages with different speed requirements. The first mixing mechanism operates at higher speed for initial blending, while the second mixing mechanism operates at optimized speed for final uniform mixing. This segmentation allows each blade to be designed for its specific speed requirement, preventing deformation and fracture
Solution Approach 2:
The system uses dynamically adjustable mixing speeds for different stages of the mixing process. The first and second mixing mechanisms can operate at different rotational speeds optimized for their respective functions, allowing high productivity without excessive blade stress that would cause deformation
3Ease of operation
If a pipeline mixer with a circular pipe is used, then sludge and flocculants can mix in the pipeline, but the mixing blade cannot nestle up to the pipe inside wall, creating blind spots
Solution Approach 1:
The mixing function is segmented between a pipeline mixer for initial mixing and a flocculation mixing tank with a second mixing mechanism for complete mixing. This segmentation allows the pipeline mixer to handle the simple inline mixing while the tank-based system ensures complete coverage without blind spots
Solution Approach 2:
The flocculation mixing tank serves as an intermediary device between the pipeline mixer and the separation system. It provides a controlled environment where the second mixing mechanism can ensure complete mixing coverage, eliminating blind spots that the pipeline mixer cannot reach
4Quantity of substance
If the mixing speed is not fast enough, then agent consumption increases, but the flocculation effect becomes dissatisfactory
Solution Approach 1:
The mixing process is segmented into two stages with the first mixing mechanism providing initial blending and the second mixing mechanism ensuring thorough uniform mixing. This segmentation allows optimal agent distribution throughout the sludge, achieving satisfactory flocculation effect with reduced agent consumption
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 provides stable and uniform mixing, reduces agent consumption, and minimizes blade damage by eliminating blind spots and optimizing mixing speed, resulting in a more efficient flocculation process with improved stability and uniformity.
Implementation Method 1
a driving motor, a mixing blade and a central shaft; one end of the central shaft is coupled to the driving motor, and the other end of the central shaft is coupled to the mixing blade
Data Source
AI summary
Provided is a highly efficient pipe-type flocculation mixer, comprising: a feeding pipe, a mixing pipe, a discharging pipe and a mixer. The feeding pipe, the mixing pipe and the discharging pipe are disposed in parallel and sequentially communicated. The mixing pipe is a circular pipe and has two blind ends. The mixer comprises a driving motor, a mixing blade and a central shaft. One end of the central shaft is coupled to the driving motor, and another end of the central shaft is coupled to the mixing blade. The size of the mixing blade enables the mixing pipe to exactly accommodate the mixing blade. Also provided is a feeding-mixing device, wherein an agent can be introduced into a hollow central shaft via an agent feeding chamber, and be sprayed out from the central shaft into a mixing chamber; said agent feeding manner enables sufficient mixing.