Slurry Flow Divider with Deceleration Zone and Weirs
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Solution Overview
Problem
Existing technologies are inadequate in efficiently dividing large slurry streams into smaller constituent streams for effective processing in industries such as plastics manufacturing, where particulates in a transport fluid require precise separation and dewatering.
Innovation Solution
A slurry dividing apparatus with a main flow channel, deceleration zone, and flow divider that splits the slurry stream into multiple branch channels, utilizing weirs to equalize pressure and ensure efficient separation, accompanied by agglomerate removal and dewatering units for further processing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a large slurry stream is divided into multiple smaller streams, then processing efficiency is improved, but device complexity increases
Solution Approach 1:
The main flow channel is divided into multiple branch flow channels through a flow divider, segmenting the slurry stream into smaller constituent streams for parallel processing. This segmentation enables multiple agglomerate removal and dewatering units to process different streams simultaneously, improving overall processing efficiency while maintaining manageable device complexity through modular design
Solution Approach 2:
The apparatus transitions from handling a single large slurry stream in one dimension to managing multiple smaller streams across spatial dimensions. The flow divider creates a three-dimensional distribution network where slurry is routed through different vertical and horizontal pathways to multiple processing units, enabling parallel processing without proportionally increasing structural complexity
2Stability of the object's composition
If slurry flow velocity is reduced in the deceleration zone, then particle suspension is maintained, but processing time increases
Solution Approach 1:
The deceleration zone is positioned upstream in the flow path to reduce slurry velocity before the slurry enters the agglomerate removal and dewatering units. This preliminary deceleration ensures particles remain suspended and evenly distributed before processing, preventing settling that would occur at higher velocities, while the streamlined channel design minimizes the time required for velocity reduction
Solution Approach 2:
The apparatus employs dynamic flow control where the deceleration zone gradually reduces slurry velocity from high-speed inlet flow to lower-speed processing flow. The channel geometry transitions from narrow to wider cross-section, creating a progressive deceleration that maintains particle suspension throughout the transition without requiring excessive residence time
3Manufacturing precision
If weirs are used to equalize pressure in branch channels, then flow distribution is improved, but device complexity increases
Solution Approach 1:
Weirs are installed at the entrances of branch flow channels to create equal hydraulic head and pressure conditions across all branches. The weirs establish an equipotential surface that ensures uniform flow distribution to each agglomerate removal and dewatering unit, preventing preferential flow paths and ensuring balanced processing loads across parallel units
Solution Approach 2:
The weirs act as intermediary structures between the main flow channel and branch channels, mediating the flow distribution. These simple barrier structures equalize pressure and direct flow uniformly to multiple branches without requiring complex control systems, valves, or automated flow balancing mechanisms, thus improving flow distribution while adding minimal structural complexity
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
Enables precise division and processing of slurry streams, maintaining particle suspension and achieving efficient separation and dewatering, allowing for effective removal of agglomerates and transport fluid, enhancing the processing efficiency in plastics manufacturing.
Implementation Method 1
a deceleration zone (505) provided in fluid communication with, and extending upward from, the inlet zone
Implementation Method 2
A flow divider (540) terminating the upper end of the main flow channel (550)
Implementation Method 3
a weir extends across an upper portion of each of the branch flow channels to equalize the pressure in each of the branch flow channels
Implementation Method 4
A flow divider (540) terminating the upper end of the main flow channel (550) may be provided to divide the slurry stream into two or more branch flow channels
Data Source
AI summary
A slurry dividing apparatus is configured to divide a main slurry stream into smaller constituent slurry streams, wherein each stream contains a desired proportion of suspended solids. The dividing apparatus includes a main flow channel and a plurality of branch flow channels extending upward from a flow divider that terminates an upper end of the main flow channel. The main slurry stream enters the main flow channel, at an inlet opening thereof, and is decelerated, by an upward extension and expanding cross-section of the main flow channel, before reaching the flow divider and being divided into the smaller constituent slurry streams flowing within the plurality of branch flow channels. Each of the smaller streams flows up and then over a weir, which extends across an upper portion of each of the branch flow channels, and then down into a corresponding discharge flow channel of the apparatus.