Segment Overview
The sterilization and marking segment serves as the “core of quality assurance” in modern egg processing lines, undertaking the dual mission of ensuring egg product hygiene safety and establishing product identity. This segment provides comprehensive protection for eggs through triple technological protection – UV sterilization, coding marking, and oil spray preservation – significantly extending shelf life and enhancing product added value.
Detailed Process Description
UV Sterilization Process
High-quality eggs after cleaning and sorting first enter the UV sterilization area. Eggs pass through UV radiation zones on conveyor belts at constant speed, undergoing thorough surface disinfection through specific wavelength ultraviolet light. This process effectively eliminates common pathogenic microorganisms like Salmonella.
Coding Marking Process
Sterilized eggs proceed to the coding stage. Using non-contact inkjet technology, food-grade ink forms clear markings on eggshells through precision printheads. Coding content can be customized according to customer requirements, including production dates, brand logos, traceability QR codes, and other information.
Oil Spray Preservation Process
After coding, eggs enter the oil spray preservation stage. Food-grade white mineral oil forms a uniform 0.05mm protective film on eggshells through precision spray systems. This microporous sealing layer effectively prevents bacterial invasion and moisture evaporation.
Core Equipment Detailed Explanation
UV Sterilization Machine
Equipment Type: Online UV sterilization equipment
Integration Method: Seamless connection with cleaning line
Sterilization Efficiency: Over 99.9%
Equipment Functional Features
- UV Sterilization System:
- High-intensity UV-C lamps with 254nm wavelength
- Omnidirectional irradiation design without dead angles
- Automatic power adjustment optimizing sterilization intensity based on conveyor speed
- Safety Protection System:
- Enclosed design preventing UV leakage
- Automatic safety switches stopping operation when doors open
- Real-time power monitoring ensuring stable sterilization效果
- Control System:
- Intelligent temperature control system preventing overheating
- LED status indicators for clear operational visibility
- Self-diagnostic function for easy maintenance
Intelligent Coding System
Equipment Model: Smart coding and marking system
Marking Efficiency: Approximately 50,000 eggs/hour
Power Requirements: Single-phase 220V 50/60Hz
Equipment Functional Features
- Printing System:
- HP printhead technology with adjustable 150-600DPI resolution
- Stepless character height adjustment from 1-12.7mm
- 2-5mm printing distance adaptable to different egg shapes
- Ink System:
- Dual-cartridge design with 42ML×2 capacity
- Multi-color ink support (red, purple, blue, green, pink, yellow, etc.)
- Approximately 100,000 prints per printhead lifespan
- Control System:
- 7-inch color touchscreen with user-friendly interface
- Support for simplified/traditional Chinese, numbers, characters, graphics, barcodes, QR codes
- Strong environmental adaptability: temperature 0-50°C, humidity 0%-90% RH
Oil Spray Preservation Machine
Film Thickness: Precisely controlled at 0.05mm
Spray Method: Micron-level atomized spraying
Oil Type: Food-grade white mineral oil
Equipment Functional Features
- Spray System:
- Precision atomizing nozzles ensuring uniform oil film
- Intelligent flow control preventing waste
- Automatic cleaning function preventing clogging
- Oil Circuit System:
- Enclosed oil supply ensuring oil hygiene
- Automatic liquid level monitoring with low-oil alarm
- Constant temperature control ensuring spray stability
In-depth Analysis of Technical Advantages
1. Excellent Hygiene and Safety Performance
UV sterilization technology achieves over 99.9% sterilization rate without chemical agents, fully complying with food safety production standards. The protective film formed by oil spraying effectively prevents external bacterial invasion, extending product shelf life by over 30%.
2. Precise and Durable Marking
Coding equipment employs high-resolution printheads capable of printing minimum 1mm characters, producing clear, wear-resistant markings. Strong ink adhesion maintains readable marking information even after transportation and shelf display.
3. High Level of Intelligence
- Automatic Adjustment: Intelligently adjusts sterilization intensity and coding frequency based on egg conveyor speed
- Data Traceability: Supports QR code printing for full-process product traceability
- Remote Monitoring: Network connectivity enables real-time equipment status monitoring
4. Energy-saving and Environmental Features
- Low-energy Design: UV sterilizer consumes only 100W, coding machine even lower
- High Material Utilization: Oil spray system achieves over 95% material utilization
- Eco-friendly Materials: Uses food-grade biodegradable inks and mineral oils
Innovative Technology Highlights
Intelligent Sterilization Control Technology
Incorporates automatic UV intensity adjustment system that intelligently regulates sterilization intensity based on egg quantity and speed, ensuring sterilization效果 while maximizing energy conservation.
Multi-language Marking System
Built-in national standard font library supports mixed Chinese-Western character printing, meeting diverse domestic and international market requirements. Specially optimized QR code printing algorithm enables high-density information storage on small eggshell surfaces.
Precision Oil Film Control Technology
Achieves accurate 0.05mm oil film thickness control through pressure feedback and flow monitoring systems. Protective film thickness uniformity error remains within ±0.005mm, ensuring preservation效果 while avoiding waste from over-spraying.
Quality Assurance System
Hygiene and Safety Assurance
- Entire machine constructed from 304 stainless steel complying with food-grade hygiene standards
- Enclosed pipeline design preventing secondary contamination
- Automatic CIP cleaning system ensuring equipment hygiene
Performance Stability Assurance
- Key components use imported brands with long service life
- Multi-stage filtration systems ensuring ink and oil purity
- Automatic fault diagnosis reducing downtime
Practical Application Results
In actual production environments, this sterilization and marking segment demonstrates significant advantages:
Production Efficiency Improvement
- Fully automated operation with hourly processing capacity of 50,000 eggs
- Reduced manual intervention lowering labor intensity
- Strong continuous operation capability supporting 24-hour production
Product Quality Enhancement
- Shelf life extended by over 30%
- Significant improvement in product image and brand recognition
- 80% reduction in customer complaints
Significant Economic Benefits
Case example: Medium-sized egg processing enterprise implementing this system achieved:
- 50% reduction in labor costs
- 40% decrease in product loss rate
- 25% increase in product added value
- Investment payback period within 12 months
The successful application of this sterilization and marking segment not only enhances product safety and appearance but also creates brand value and market competitive advantages for enterprises, representing a key technological link for modern egg processing companies to achieve product upgrading.
