Abrasive Stream Potato Peeling Precision Control
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Solution Overview
Problem
Existing potato peelers lack precision in peeling, often resulting in under-peeling or over-peeling, and fail to effectively remove peels from concavities or isolated deformities without damaging the underlying starch, leading to inefficiencies and increased production costs.
Innovation Solution
A method and apparatus using an abrasive stream comprising a fluid and abrasive, such as salt or potato starch, to precisely remove the outer surface of potatoes, with controlled kinetic energy and momentum, allowing for real-time adjustment of peeling depth and selective removal of targeted portions, including concavities, while minimizing starch loss.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If random motion of potatoes over abrasive rolls or brushes is used, then peeling can be accomplished, but precision control of peeling depth is lost resulting in under-peeling or over-peeling
Solution Approach 1:
The patent replaces traditional mechanical abrasion systems (abrasive rolls, brushes) with a fluid-based abrasive stream system. The abrasive particles are suspended in a fluid and directed at the potato surface, allowing precise control of peeling depth through fluid dynamics parameters while maintaining high processing speed. This substitution enables both precision and productivity simultaneously.
Solution Approach 2:
The invention changes the fundamental parameters of the peeling process by using controllable fluid flow rate, abrasive particle size, and stream pressure to precisely regulate peeling depth. These parameter adjustments allow the system to achieve exact peeling depth control without sacrificing processing efficiency, directly resolving the contradiction between precision and productivity.
2Manufacturing precision
If existing peelers remove peels from concavities, then complete peeling is achieved, but underlying starch is damaged
Solution Approach 1:
The abrasive stream system applies peeling action with locally controlled intensity and duration. By adjusting the fluid stream characteristics and abrasive particle distribution, the system delivers precise local treatment to concavity areas, removing peels completely while stopping before damaging the underlying starch. This local quality control enables complete peeling without substance loss.
Solution Approach 2:
The invention uses controlled partial action of the abrasive stream, applying just enough force and duration to remove the peel from concavities without excessive action that would damage the starch. The system can be tuned to apply the minimum necessary action for complete peeling, preventing over-peeling and starch loss while achieving the desired peeling completeness.
3Productivity
If abrasive stream with high kinetic energy is used, then peeling efficiency increases, but risk of damaging the food product increases
Solution Approach 1:
The system employs dynamic control of the abrasive stream parameters, including variable fluid flow rate, adjustable stream pressure, and controllable abrasive particle size. These dynamic adjustments allow the system to optimize peeling speed while preventing product damage by adapting the kinetic energy delivery in real-time based on processing conditions and product characteristics.
Solution Approach 2:
The invention incorporates feedback mechanisms that monitor the peeling process and adjust abrasive stream parameters accordingly. By detecting peeling progress and product condition, the system automatically modulates the kinetic energy of the abrasive stream, maintaining high productivity while preventing damage through real-time parameter optimization based on process feedback.
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 precise control over the peeling process, achieving complete peeling with minimal starch loss, effectively removing peels from concavities and isolated areas without damaging the underlying potato, thus improving efficiency and reducing production costs.
Implementation Method 1
bringing an abrasive stream into contact with the outer surface of the food product, thereby separating at least a portion of the outer surface of the food product from the remainder of the food product... wherein the abrasive stream comprises a fluid and an abrasive
Implementation Method 2
the fluid jet creates a force of suction to draw the abrasive into the fluid in the nozzle, thereby providing the abrasive stream
Data Source
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AI summary
A method and apparatus for causing attrition to an outer surface of a food product to provide a removed portion of the food product and a remainder of the food product. In a first aspect, an abrasive stream contacts the outer surface of the food product, thereby separating at least a portion of the outer surface of the food product from the remainder of the food product to provide the removed portion of the food product. In a second aspect, the apparatus comprises a product positioner to position the food product in an attrition zone and a nozzle for discharging the abrasive stream into contact with the food product in the attrition zone. The abrasive stream can be food grade and can comprise a food grade fluid and a food grade abrasive, for example, air and salt, respectively.