Rhizome Processing Apparatus with Inclined Ramp Conveyors
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Solution Overview
Problem
Current methods for processing and replanting rhizomes, such as those from Giant Miscanthus, are inefficient in terms of rhizome size reduction, soil separation, and cleaning, leading to suboptimal stand establishment and yield due to issues with weed competition and moisture availability.
Innovation Solution
An apparatus and method involving a series of inclined ramp conveyors with obstructers and vibratory screens to cut, break, and separate rhizomes from soil, followed by washing to produce clean, uniform planting stock, which includes a hopper system to process bulk rhizomes into suitable sizes for replanting.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If conventional processing methods are used for rhizomes, then the processing system is simple, but the rhizome size reduction efficiency is low and soil separation is inadequate
Solution Approach 1:
The processing system is divided into multiple independent conveyor ramps, each performing a specific function (size reduction, soil separation, cleaning). This segmentation allows each component to be optimized for its specific task while maintaining overall system efficiency, resolving the contradiction between productivity and complexity by breaking down the complex task into manageable segments.
Solution Approach 2:
The system uses inclined ramp conveyors that process rhizomes in a vertical/diagonal dimension rather than horizontal processing. This dimensional change allows gravity to assist in soil separation and enables multiple processing stages to be stacked vertically, improving productivity without proportionally increasing horizontal space requirements.
2Reliability
If rhizomes are not properly cleaned and separated from soil, then the processing time is short, but stand establishment and yield are suboptimal
Solution Approach 1:
The system performs preliminary soil separation and cleaning actions during the conveyance process itself, rather than requiring separate post-processing steps. The inclined ramps and obstructers preliminarily break up rhizome clusters and separate soil before the rhizomes reach the planting stage, ensuring quality establishment without adding significant processing time.
Solution Approach 2:
The conveyor system provides continuous processing where rhizomes are constantly being moved, sized, and cleaned through the inclined ramps. This continuous action eliminates idle time between processing stages and maintains steady throughput, achieving both high reliability of cleaning and efficient use of time.
3Productivity
If rhizome clusters are not reduced in size, then the processing equipment is simple, but weed competition increases and moisture availability is reduced
Solution Approach 1:
The obstructers on the inclined conveyor ramps cause rhizome clusters to break apart through their own weight and the mechanical action of the conveyor, without requiring complex external cutting or breaking mechanisms. The system uses the rhizomes' own properties and the conveyor's motion to achieve size reduction, improving stand density while keeping the size reduction mechanism relatively simple.
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 effectively reduces rhizome size, separates soil, and cleans the rhizomes, enhancing stand establishment and yield by ensuring proper soil contact and reducing weed competition, thus improving the efficiency of rhizome planting processes.
Implementation Method 1
A second inclined ramp conveyor is positioned to receive reduced-size clusters from the first inclined ramp conveyor and has a vibrator to impart vibration to the reduced-size clusters to shake dirt and debris from the reduced-size clusters.
Implementation Method 2
A washer conveyor downstream of the second inclined ramp conveyor receives reduced-size clusters and has a liquid supply apparatus to apply liquid to the reduced-size clusters to wash dirt from the clusters.
Data Source
AI summary
A method and apparatus for processing harvested miscanthus or other rhizomes to condition them for replanting to grow miscanthus plants. Quantities of clusters of rhizomes are supplied to a first inclined ramp conveyor, the clusters of rhizomes are caught on a mechanism that pushes the clusters of rhizomes to a location where the clusters of rhizomes encounter obstructers that cooperate with the mechanism to cut and reduce the size of the clusters. The reduced size clusters are vibrated to loosen and separate soil from the reduced size cluster of rhizomes, washed to wash dirt from the clusters, and collected for supply to a planter.