Venturi-Based Eggshell Membrane Separation Using Shock Waves

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Solution Overview

Problem

Current methods for separating eggshell membranes from eggshells are inefficient, as they either damage the membranes or fail to effectively separate the brittle outer portion from the more elastic membrane, leading to incomplete separation and potential destruction of valuable membrane material.

Innovation Solution

An eggshell membrane separation system utilizing a venturi to process unprocessed eggshells suspended in airflow, where shock waves within the venturi pulverize the brittle outer portion of the eggshell while leaving the more elastic membrane intact, allowing for effective separation and extraction of both components.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Manufacturing precision

If conventional separation methods are used, then separation between eggshells and membranes is achieved, but the membranes are damaged or destruction occurs

Engineering Contradiction:
Improveseparation qualityVSAvoidmembrane damage
Core Design Contradiction:
Manufacturing precisionVSObject-affected harmful factors

Solution Approach 1:

The patent replaces conventional mechanical separation methods with a pneumatic system using a venturi and airflow. The eggshells and membranes are suspended in air and passed through a venturi where shock waves and turbulence separate them based on density and aerodynamic properties, eliminating direct mechanical contact that causes membrane damage.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The invention uses a venturi-driven pneumatic system to suspend, transport, and separate eggshells from membranes. Airflow through the venturi creates controlled turbulence and shock waves that selectively separate the components based on their physical properties, achieving high-quality separation without mechanical damage.

Inventive Principle:
Principle #29Pneumatics and hydraulics

2Manufacturing precision

If mechanical pulverization is used, then eggshell breakdown is achieved, but membranes are destroyed along with eggshells

Engineering Contradiction:
Improveseparation completenessVSAvoidmembrane material loss
Core Design Contradiction:
Manufacturing precisionVSLoss of substance

Solution Approach 1:

The venturi system creates localized zones of different airflow intensity and shock wave concentration. Eggshells experience intense pulverization in the high-turbulence zone where their brittle structure breaks down, while membranes are exposed to milder conditions that preserve their elastic structure, achieving selective breakdown based on local physical conditions.

Inventive Principle:
Principle #3Local quality

Solution Approach 2:

The system changes the physical parameters of the separation process by using controlled airflow velocity, pressure differential, and shock wave intensity in the venturi. These parameter changes allow selective pulverization of eggshells while maintaining membrane integrity, unlike constant-force mechanical methods.

Inventive Principle:
Principle #35Parameter changes

3Productivity

If separation efficiency is increased, then more complete separation is achieved, but process complexity increases

Engineering Contradiction:
Improveseparation efficiencyVSAvoidsystem complexity
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The venturi device performs multiple functions simultaneously: it suspends material in airflow, transports it through the separation zone, generates shock waves for pulverization, and creates turbulence for separation. This multi-functionality achieves high separation efficiency without requiring multiple separate processing stages or complex equipment.

Inventive Principle:
Principle #6Universality (Multi-functionality)

Solution Approach 2:

The system uses the properties of the material being processed (density differences, aerodynamic characteristics) to achieve separation automatically through airflow and shock waves in the venturi. The process self-regulates based on material properties without requiring complex control systems or external intervention.

Inventive Principle:
Principle #25Self-service

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 achieves efficient separation of eggshell membranes from the brittle outer portion, resulting in high-quality membrane extraction with minimal damage, enabling the collection of 80-85% of initial membrane material and potential sterilization, while producing pulverized eggshell particles.

Implementation Method 1

shock waves within the venturi pulverize the brittle outer portion of the eggshell

Methodology Applied
Scientific EffectShock wave: Shock Wave

Data Source

PatentEP2568821B1Eggshell membrane separation process
Publication Date: 2021.03.17 LENEW HLDG
  • EP2568821B1 patent drawingFigure 1~2
  • EP2568821B1 patent drawingFigure 3
  • EP2568821B1 patent drawingFigure 4

AI summary

A system and process for separating eggshell membranes from eggshells. The system and process may utilize airflow through a venturi to pulverize the eggshell and thereby separate the eggshell from the membrane. Furthermore, in some embodiments, the process may also extract moisture from the membrane and eggshell. The system may further be configured to collect the pulverized eggshell particles separately from the membrane material.