Impact Processing for Mummy Nut Devitalisation
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Solution Overview
Problem
The almond industry in Australia faces significant economic damage from the Carpophilus beetle, which breeds in mummy nuts and attacks the following crop, necessitating improved orchard hygiene strategies.
Innovation Solution
An impact processing system with a central feed opening, rotatable impact mechanism, and impact structure with holes, capable of fragmenting and devitalizing organic matter, including a rotatable set of impact members to enhance fragmentation and airflow, is used to mechanically process nuts or fruits, thereby reducing their viability as beetle habitats.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If mummy nuts are left in the orchard, then orchard hygiene deteriorates and beetle populations increase, but mechanical removal and destruction requires additional equipment and operational complexity
Solution Approach 1:
The patent combines multiple functions into a single integrated machine: collection of mummy nuts from the orchard floor, transport to the processing system, and impact fragmentation/devitalisation. This merging eliminates the need for separate removal and destruction operations, reducing overall equipment complexity while effectively addressing beetle habitat issues.
Solution Approach 2:
The impact processing system is designed to handle multiple types of organic matter (mummy nuts, weed seeds, crop residues) through a single device. The rotor with impact elements and screen structure provides universal processing capability, allowing the same equipment to address different orchard hygiene problems without requiring specialized tools for each task.
2Object-affected harmful factors
If impact processing system is used to fragment organic matter, then beetle habitat viability is reduced, but energy consumption increases due to high-speed rotating elements
Solution Approach 1:
The impact processing system uses a screen with multiple holes to segment the fragmentation process. Material is broken into smaller pieces that pass through the screen holes, allowing the system to achieve effective devitalisation without requiring excessive force or energy. The segmentation enables progressive size reduction rather than attempting to pulverize all material simultaneously.
Solution Approach 2:
The system adjusts operational parameters including rotor speed, impact element configuration, and screen hole size to optimize energy efficiency. By changing these parameters, the system achieves effective fragmentation and devitalisation of organic matter while minimizing energy consumption, adapting to different types and volumes of material processed.
3Manufacturing precision
If high impact speeds are used to pulverise material, then fragmentation effectiveness is improved, but device wear and maintenance requirements increase
Solution Approach 1:
The impact elements are designed to be replaceable and removable, allowing dynamic maintenance without replacing the entire rotor assembly. The screen structure is also designed for easy removal and replacement. This dynamic maintenance approach enables quick repairs and reduces downtime while maintaining high fragmentation effectiveness during operation.
Solution Approach 2:
The impact elements and screen are designed as wear-prone, easily replaceable components rather than permanent fixtures. These components can be quickly swapped out when worn, using inexpensive replacement parts. This approach prioritizes operational continuity and cost-effectiveness over long-term durability of individual components, reducing overall maintenance 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
The system effectively devitalizes and fragments organic matter, making it less viable as a habitat for insects, thereby reducing beetle populations and improving orchard hygiene.
Implementation Method 1
the rotatable impact mechanism being arranged to impact material entering the primary impact zone from the central opening and accelerate the impacted material in a radial outward direction toward the impact structure to effect fragmentation of the impacted material
Data Source
AI summary
An impact processing system 10 having a central opening 12 enabling material flow into a primary impact zone 14 in which is located an impact mechanism 16 rotatable about a rotation axis 18. An impact structure 20 provided with a plurality of holes 22 surrounds the impact mechanism 16. The rotatable impact mechanism 16 impacts material entering the primary impact zone 14 from the central opening 12 and accelerate the impacted material in a radial outward direction toward the impact structure 20 to effect fragmentation of the impacted material so that when sufficiently fragmented the material is able to pass through the holes 22. An optional outer structure 30 is radially spaced from the impact structure 20 and may comprise one or more segments that cumulatively extend about the axis of rotation 18 for an angle from 30° and 270° inclusive. A rotatable set of impact members 50 may be located between the impact structure and the outer structure. One or more gaps 28 may be provided in the impact structure 20 to allow the passage of large and/or hard objects that cannot otherwise be fragmented. The outer structure 30 is positioned to span across the gaps 28 so that material passing there thought is directed onto the outer structure 30.