Walnut Kernel Red Coat Removal via Electromagnetic Heating
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Solution Overview
Problem
Current methods for removing red coats from walnut kernels, such as alkaline liquor immersion and heating roller apparatuses, face issues like quality degradation, inefficient removal, and complexity in processing, particularly affecting the quality and safety of walnut oil production.
Innovation Solution
An intelligent apparatus utilizing belt conveying and heat radiation based on the thermal expansion and contraction principle, employing an electromagnetic heating mechanism with a thermal insulation layer and a conveyor belt to uniformly heat walnut kernels, separating them from red coats through controlled temperature and conveyor speed.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If alkaline liquor immersion method is used to remove red coats, then removal efficiency is improved, but walnut kernel quality deteriorates due to dissolution of grease and proteins
Solution Approach 1:
The patent replaces the chemical alkaline liquor immersion method with a physical heating method. The heating roller apparatus uses thermal energy to separate red coats from walnut kernels through controlled heating, eliminating the need for chemical alkali solutions while maintaining effective red coat removal and preserving kernel quality.
Solution Approach 2:
The patent employs controlled temperature parameters in the heating process. By precisely controlling the heating temperature and duration, the system achieves effective red coat removal while preventing excessive heating that would damage the walnut kernel quality, thus resolving the contradiction between removal efficiency and quality preservation.
2Extent of automation
If heating roller apparatus is used for red coat removal, then automation is improved, but heating uniformity deteriorates causing quality issues
Solution Approach 1:
The patent uses a cylindrical heating roller with a curved surface to contact the walnut kernels. This spherical/curved geometry ensures uniform heat distribution across all kernels as they roll against the heated surface, improving heating uniformity while maintaining the automated processing capability.
Solution Approach 2:
The heating roller apparatus creates dynamic motion where walnut kernels roll against the rotating heated roller. This dynamic rolling action ensures all surfaces of each kernel receive uniform heat exposure, improving heating consistency while maintaining automation. The system adapts to variations in kernel size and shape through this dynamic interaction.
3Use of energy by moving object
If conventional heating methods are used, then energy consumption is reduced, but heating efficiency and uniformity deteriorate
Solution Approach 1:
The patent replaces conventional indirect heating methods with direct contact heating through the heating roller. This substitution creates efficient thermal transfer from the roller surface directly to the walnut kernels, significantly improving heating efficiency and uniformity while maintaining reasonable energy consumption through targeted localized heating.
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
This method ensures uniform heating, reduces water content in walnut kernels, improves flavor, and enhances automation and efficiency in red coat removal, minimizing damage and maintaining kernel quality.
Implementation Method 1
an electromagnetic coil is circumferentially arranged outside the supporting frame; the AC current is used to generate an alternating magnetic field to make the radiation liner generate heat under the action of the alternating magnetic field
Implementation Method 2
the radiation liner generate heat under the action of the alternating magnetic field to become a heat radiation source
Implementation Method 3
a thermal insulation layer, and the conveyor belt to uniformly heat walnut kernels
Implementation Method 4
heat radiation based on the thermal expansion and contraction principle
Data Source
AI summary
Disclosed is a continuous feeding mechanism including a transfer mechanism, wherein the transfer mechanism includes a rotatable indent roller circumferentially provided with a plurality of blanking grooves; a post pin is arranged in each blanking groove; the post pin is connected with a spring; the spring is arranged towards the interior of the indent roller; and the post pin can move along the blanking grooves; a feeding box, wherein the bottom of the feeding box is hollow, and the bottom is arranged above the indent roller or the bottom is fixedly connected with the indent roller; the continuous feeding mechanism is arranged above one side of the transfer mechanism; and an electromagnetic heating mechanism which includes a supporting frame, wherein the transfer mechanism is arranged in the supporting frame, and an electromagnetic coil is circumferentially arranged outside the supporting frame.