Root Crop Washer Stone Separator Using Cyclonic Separation
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Solution Overview
Problem
Existing root crop washers are inefficient in removing stones and unwanted clay materials due to limited effectiveness of current de-stoning apparatus.
Innovation Solution
A root crop washer with a stone separator housing that generates a first liquid stream to separate unwanted materials, featuring a cyclonic separator with a vortex generator and a second liquid stream to support the root crop, ensuring effective separation and removal of stones and clay before washing, and a waste removal conveyor to manage debris.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If conventional de-stoning apparatus is used, then the structure is simple, but the separation effectiveness of stones and clay from root crop is poor
Solution Approach 1:
The patent employs hydraulic principles by using water streams generated through a cyclonic separator to create centrifugal forces that separate stones and clay from root crop. The hydraulic action of water flowing through the separator housing generates the necessary forces for effective separation without complex mechanical moving parts.
Solution Approach 2:
The separator housing is divided into distinct functional zones: an inlet region, a separation region with cyclonic separator, and an outlet region. This segmentation allows different separation mechanisms to operate in different zones, improving overall separation effectiveness while maintaining structural clarity.
2Manufacturing precision
If stone separator with liquid stream is added, then separation effectiveness improves, but device complexity increases
Solution Approach 1:
The cyclonic separator performs multiple functions simultaneously: it generates the first liquid stream for carrying root crop, creates centrifugal separation forces, and eliminates the need for separate mechanical de-stoning devices. This multi-functionality improves separation effectiveness while avoiding additional complexity from separate components.
Solution Approach 2:
The patent replaces complex mechanical de-stoning mechanisms with a hydraulic-cyclonic system. Instead of using mechanical screens, rollers, or moving parts to remove stones and clay, the system uses centrifugal forces generated by swirling water flow, significantly simplifying the overall apparatus while maintaining high separation effectiveness.
3Productivity
If cyclonic separator with vortex generator is used, then separation efficiency increases, but energy consumption increases
Solution Approach 1:
The cyclonic separator is designed to generate its own driving force using the kinetic energy of incoming water flow. The vortex generator creates centrifugal forces that automatically separate materials without requiring additional external energy input or mechanical drivers, making the system self-sufficient and energy-efficient.
Solution Approach 2:
The system changes the physical parameters of the water flow by converting linear flow into rotational vortex flow. This parameter change from simple flow to centrifugal vortex flow enables much higher separation efficiency without proportionally increasing energy consumption, as the kinetic energy is redirected rather than added.
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 excellent separation of stones and clay from root crops, enhancing the washing process by using centrifugal action and swirling liquid streams to efficiently remove unwanted materials, improving the overall cleaning efficiency and preventing waste buildup.
Implementation Method 1
the water carries the root crop outwardly by centrifugal action whilst the heavier stone and clay materials drop through the water to the bottom of the separator housing
Implementation Method 2
the stone separator comprises a cyclonic separator with a vortex generator for swirling liquid within the separator housing for generating a vortex within the separator housing
Implementation Method 3
a second liquid stream generator for generating a second liquid stream within the separator housing travelling upwardly through the separator housing. This aids in supporting the root crop within the separator housing
Data Source
AI summary
A root crop washer has a rotatable washing drum which is partially immersed in a water trough, and a stone separator mounted before an inlet of the drum. A loading hopper is provided for delivering a root crop to the stone separator. An elevator is mounted at an outlet of the washing drum for discharge of cleaned produce from an outlet of the washing drum. Rotating paddles within the stone separator impart a swirling motion about a vertical axis to water in the stone separator. The root crop is supported by the water and moved around an inner sidewall of the stone separator between an inlet and an outlet of the stone separator. At the same time unwanted heavier material such as stones and clay falls downwardly through the stone separator for discharge through a waste outlet at a bottom of the stone separator.