Product Overview
This plate-type UHT sterilization system adopts ultra-high temperature treatment process to achieve strict sterilization of liquid dairy products, tea beverages and fruit juices, which is perfectly matched with subsequent aseptic packaging. The sterilization temperature reaches 137℃ with a holding time of 3–5 seconds. This short-time high-temperature sterilization method can thoroughly kill harmful microorganisms while maximally preserving the original nutrition, color, luster and flavor of beverages and dairy products.
The equipment features high heat recovery rate, compact and elegant structure, and stable temperature control. It supports both hot filling with automatic discharge temperature control and cold filling processes, and can be flexibly matched with different production line configurations. The whole machine adopts fully automatic control mode with PLC control system and touch screen display, realizing stable and reliable unattended production operation.
Equipment Features
- High-efficiency plate heat exchange Adopts multi-stage plate heat exchanger structure with high heat recovery rate, effectively reducing steam and cooling water consumption and lowering production operation cost.
- Compact integrated structure Skid-mounted integrated design with compact and elegant layout, small floor space, convenient installation and debugging, suitable for workshop space of different scales.
- Precise temperature control Precise control of sterilization temperature and holding time, stable sterilization effect, ensuring product safety while retaining product nutrition and flavor to the maximum extent.
- Flexible process adaptation Supports both hot filling and cold filling processes, with automatic control of discharge temperature, which can be flexibly adjusted according to different product process requirements.
- Fully automatic operation Equipped with PLC control system and touch screen human-machine interface, the whole sterilization process runs automatically with real-time parameter display and recording, reducing manual operation and ensuring stable product quality.
- Food-grade hygienic design All product-contact parts adopt food-grade stainless steel material, with smooth pipeline and no dead corners, supporting CIP cleaning and meeting food production hygiene standards.
- Stable reliable configuration Adopts high-quality core components, with stable operation, low failure rate and long service life, meeting long-term continuous production demands.
Working Principle
The equipment works on the ultra-high temperature instantaneous (UHT) sterilization principle based on plate heat exchange. Materials continuously flow in the fully closed plate heat exchanger, and go through three stages: preheating, high-temperature sterilization and cooling in sequence.
First, the low-temperature raw material enters the heat recovery section, and absorbs the heat of the sterilized high-temperature material through the plate heat exchanger to realize preheating; then it enters the heating section and is rapidly heated to 105–143℃ by steam, and maintains the set sterilization time in the holding tube to completely kill harmful microorganisms and spores; finally, the sterilized high-temperature material enters the cooling section and is cooled to the required filling temperature through heat recovery and cooling water.
The whole process is completed in a fully closed food-grade stainless steel pipeline without external pollution. The short high-temperature duration ensures thorough sterilization while maximally retaining the original flavor, color and nutritional components of the product.
Process Parameters
Standard process route:
5℃ → 65℃ (homogenization) → 137℃ (3–5s holding) → 20–25℃
(Suitable for aseptic cold filling production)
Technical Parameters
| Items | LG-UHT-1 | LG-UHT-2 | LG-UHT-3 | LG-UHT-4 | LG-UHT-5 |
|---|---|---|---|---|---|
| Production Capacity (L/H) | 1000 | 2000 | 3000 | 4000 | 5000 |
| Material Inlet Temperature | 5℃ | 5℃ | 5℃ | 5℃ | 5℃ |
| Holding Time (s) | 4–15 | 4–15 | 4–15 | 4–15 | 4–15 |
| Sterilization Temperature | 105~143℃ | 105~143℃ | 105~143℃ | 105~143℃ | 105~143℃ |
| Material Outlet Temperature | 20℃ | 20℃ | 20℃ | 20℃ | 20℃ |
| Ice Water Inlet Temperature | ≤2℃ | ≤2℃ | ≤2℃ | ≤2℃ | ≤2℃ |
| Steam Pressure | 0.5MPa | 0.5MPa | 0.5MPa | 0.5MPa | 0.5MPa |
| Steam Consumption | ≈150kg/h | ≈210kg/h | ≈280kg/h | ≈350kg/h | ≈420kg/h |
| Compressed Air Pressure | 0.6MPa | 0.6MPa | 0.6MPa | 0.6MPa | 0.6MPa |
| Compressed Air Consumption | 50L/H | 50L/H | 60L/H | 60L/H | 70L/H |
| Overall Dimensions (mm) | 3500×2000×2500 | 3500×2000×2500 | 4500×2500×2200 | 5000×2000×2200 | 5000×2000×2200 |
| Total Weight | 1700kg | 2000kg | 2200kg | 2500kg | 2800kg |
Data is for reference only. Specifications are subject to change without prior notice due to continuous R&D improvement.
Application Fields
- Dairy industry: Continuous sterilization of liquid milk, flavored milk, milk beverages and other dairy products
- Beverage industry: Sterilization of fruit juice, tea beverages, compound beverages, plant protein drinks and other liquid beverages
- Food processing: Sterilization of syrup, plant extracts, liquid condiments and other liquid food raw materials
- Other industries: Heat sterilization of various liquid products requiring ultra-high temperature instantaneous sterilization
